Journal articles: 'Modèle I3'

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Ohmaid, Hicham, S. Eddarouich, A. Bourouhou, and M. Timouya. "Comparison between SVM and KNN classifiers for iris recognition using a new unsupervised neural approach in segmentation." IAES International Journal of Artificial Intelligence (IJ-AI) 9, no. 3 (September 1, 2020): 429. http://dx.doi.org/10.11591/ijai.v9.i3.pp429-438.

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Un système biométrique d'identification et d'authentification permet la reconnaissance automatique d'un individu en fonction de certaines caractéristiques ou caractéristiques uniques qu'il possède. La reconnaissance de l'iris est une méthode d'identification biométrique qui applique la reconnaissance des formes aux images de l'iris. En raison des motifs épigénétiques uniques de l'iris, la reconnaissance de l'iris est considérée comme l'une des méthodes les plus précises dans le domaine de l'identification biométrique. L'algorithme de segmentation proposé dans cet article commence par déterminer les régions de l'œil à l'aide d'une approche neuronale non supervisée, après que le contour de l'œil a été trouvé à l'aide du bord de Canny, la transformation de Hough est utilisée pour déterminer le centre et le rayon de la pupille et de l'iris. . Ensuite, la normalisation permet de transformer la région de l'iris circulaire segmenté en une forme rectangulaire de taille fixe en utilisant le modèle de feuille de caoutchouc de Daugman. Une transformation en ondelettes discrètes (DWT) est appliquée à l'iris normalisé pour réduire la taille des modèles d'iris et améliorer la précision du classificateur. Enfin, la base de données URIBIS iris est utilisée pour la vérification individuelle de l'utilisateur en utilisant le classificateur KNN ou la machine à vecteur de support (SVM) qui, sur la base de l'analyse du code de l'iris lors de l'extraction des caractéristiques, est discutée.

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O'Flaherty, S., A. Coffey, R. Edwards, W. Meaney, G. F. Fitzgerald, and R. P. Ross. "Genome of Staphylococcal Phage K: a New Lineage of Myoviridae Infecting Gram-Positive Bacteria with a Low G+C Content." Journal of Bacteriology 186, no. 9 (May 1, 2004): 2862–71. http://dx.doi.org/10.1128/jb.186.9.2862-2871.2004.

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ABSTRACT Phage K is a polyvalent phage of the Myoviridae family which is active against a wide range of staphylococci. Phage genome sequencing revealed a linear DNA genome of 127,395 bp, which carries 118 putative open reading frames. The genome is organized in a modular form, encoding modules for lysis, structural proteins, DNA replication, and transcription. Interestingly, the structural module shows high homology to the structural module from Listeria phage A511, suggesting intergenus horizontal transfer. In addition, phage K exhibits the potential to encode proteins necessary for its own replisome, including DNA ligase, primase, helicase, polymerase, RNase H, and DNA binding proteins. Phage K has a complete absence of GATC sites, making it insensitive to restriction enzymes which cleave this sequence. Three introns (lys-I1, pol-I2, and pol-I3) encoding putative endonucleases were located in the genome. Two of these (pol-I2 and pol-I3) were found to interrupt the DNA polymerase gene, while the other (lys-I1) interrupts the lysin gene. Two of the introns encode putative proteins with homology to HNH endonucleases, whereas the other encodes a 270-amino-acid protein which contains two zinc fingers (CX2CX22CX2C and CX2CX23CX2C). The availability of the genome of this highly virulent phage, which is active against infective staphylococci, should provide new insights into the biology and evolution of large broad-spectrum polyvalent phages.

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Khairnasov, Sergey, Boris Rassamakin, and Dmytro Kozak. "EXPERIMENTAL INVESTIGATIONS OF ALUMINUM THERMOSYPHONS FOR A PHOTOVOLTAIC THERMAL MODULE." Heat Pipe Science and Technology, An International Journal 6, no. 3-4 (2015): 205–15. http://dx.doi.org/10.1615/heatpipescietech.v6.i3-4.80.

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Dwiyanto Tobi, Markus, and Vina N. Van Harling. "Wireless electric energy transmission system and its recording system using PZEM004T and NRF24L01 module." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 3 (March 10, 2021): 1372. http://dx.doi.org/10.11591/ijeecs.v21.i3.pp1372-1380.

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Electrical energy can not be separated from the name kWh Meter, a tool used to measure and record the amount of electrical energy usage has a shortage of kWh meters can not be monitored remotely how much energy is used, so it is rather inconvenient for PLN officials to check the use of electricity for postpaid customers. This research was conducted to design a prototype of a wireless electrical energy transmission system and design a wireless electrical energy recording system using the NRF24L01 wireless transmitter module and the PZEM004T kWh meter module. The design in this study uses the principle of electromagnetic induction to transfer electrical energy at close range, while to transmit data, the authors use the NRF24L01 module. Besides, the authors use the PZEM004T module to measure various magnitudes. Based on the results of observations and measurements of the design of the tool, the authors found that the transmission of electrical energy using electromagnetic induction is not effective for longer distances because the energy lost in the air is getting bigger. So this technology needs to be further investigated. Besides, the measurement of electrical quantities using the PZEM module has a small difference (under 2%) with measurements using a multimeter, so it can be said that the measurement with the PZEM004T module is effective.

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Dessai, Sanket, and K. Ramakrishna. "Implementation of Video Capture and Playback in Mobile Systems." International Journal of Reconfigurable and Embedded Systems (IJRES) 2, no. 3 (November 1, 2013): 106. http://dx.doi.org/10.11591/ijres.v2.i3.pp106-115.

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Mobile phones are backbone of the mobile communications and have experienced fastest growing segment in the consumer market. In the 3G and 4G mobiles, video recording is an essential entertainment features so the user can record and play the video within the mobile phone. In this paper, video capture and playback implementation had been carried out by integrating the camera module to the GSM phone. An alaysis of the video processing had been carried out. Image sensor and LCD module had been interfaced with the base band processor through the video processor. To interface the different module necessary PCB schematic diagram had been arrived. Software implementation had been carried out for the Human Machine Interface for various settings of the camera module, which is integrated with the video processor. The developed playback system had been tested for the various senerious. In this video has been captured through the camera sensor and at the time of playback measured the resolution, power consumption and image transfer rates of the various modules used in the developed camera phone.

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Afikah, Adilah, and Iryani Iryani. "Deskripsi Keterampilan Proses Sains Peserta Didik Kelas XI MIPA dalam Pembelajaran Menggunakan Modul Sistem Koloid Berbasis Inkuiri Terbimbing." Edukimia 2, no. 3 (July 3, 2020): 122–27. http://dx.doi.org/10.24036/ekj.v2.i3.a143.

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The purpose of this study is to get an overview of the Science Process Skills of students in learning using the Guided Inquiry-based Colloidal System module. The type of research used is library research with descriptive analysis. The data used in this study are secondary data, i.e. scientific journals which are in the form of articles. The data collection method is in the form of a documentation method with data analysis techniques, namely content analysis. Based on the results of a journal review that has been done, it is obtained that the use of the Guided Inquiry-Based Colloidal System module in learning especially in practical activities can bring up the Science Process Skills of students well. Each Science Process Skill indicator appears with different percentages in either category.

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Assia, Habbati Bellia, and Moulay Benine Fatima. "Detailed modeling of two diode photovoltaic module using MATLAB simulik." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 3 (September 1, 2019): 1603. http://dx.doi.org/10.11591/ijpeds.v10.i3.pp1603-1612.

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This paper proposes an accurate model of Photovoltaic Module. The model is presented in details and simulated by Matlab Simulink. The PV module is presented as a two diode model with the series’ and parallels’ resistances. The method is used to obtain the parameters of the module by using data provided by the manufacturer. To verify the accuracy of the proposed model, a comparison is done between the present results and those in a previous paper in which the single diode detailed model was studied. The same type of modules (PWX 500) is used to compare and validate results. The weather data as illumination and temperature are taken as input variables when current and Power are output variables. For the validation of the proposed model, it is used to power a resistive load by using a boost converter controlled by à Maximum Power Point Tracking method. The proposed method is very detailed and can be useful for PV researchers for their works.

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V. Kinge, Pravin, S. J. Honale, and C. M. Bobade. "Design of AES Pipelined Architecture for Image Encryption/Decryption Module." International Journal of Reconfigurable and Embedded Systems (IJRES) 3, no. 3 (November 1, 2014): 114. http://dx.doi.org/10.11591/ijres.v3.i3.pp114-118.

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The relentless growth of Internet and communication technologies has made the extensive use of images unavoidable. The specific characteristics of image like high transmission rate with limited bandwidth, redundancy, bulk capacity and correlation among pixels makes standard algorithms not suitable for image encryption. In order to overcome these limitations for real time applications, design of new algorithms that require less computational power while preserving a sufficient level of security has always been a subject of interest. Here Advanced Encryption Standard (AES),as the most widely used encryption algorithm in many security applications. AES standard has different key size variants, where longer bit keys provide more secure ciphered text output. The available AES algorithm is used for data and it is also suitable for image encryption and decryption to protect the confidential image from an unauthorized access. This project proposes a method in which the image data is an input to Pipelined AES algorithm through Textio, to obtain the encrypted image. and the encrypted image is the input to Pipelined AES Decryption to get the original image. This project proposed to implement the 128,192 & 256 bit Pipelined AES algorithm for image encryption and decryption, also to compare the latency , efficiency, security, frequency & throughput . The proposed work will be synthesized and simulated on FPGA family of Xilink ISE 13.2 and Modelsim tool respectively in Very high speed integrated circuit Hardware Description Language.

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Zawani Ahmmad, Siti Nor, Eileen Su Lee Ming, Yeong Che Fai, Suneet Sood, Anil Gandhi, Nur Syarafina Mohamed, Hisyam Abdul Rahman, and Etienne Burdet. "Objective assessment of surgeon’s psychomotor skill using virtual reality module." Indonesian Journal of Electrical Engineering and Computer Science 14, no. 3 (June 1, 2019): 1533. http://dx.doi.org/10.11591/ijeecs.v14.i3.pp1533-1543.

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This study aims to identify measurable parameters that could be used as objective assessment parameters to evaluate surgical dexterity using computer-based assessment module. A virtual reality module was developed to measure dynamic and static hand movements in a bimanual experimental setting. The experiment was conducted with sixteen subjects divided into two groups: surgeons (N = 5) and non-surgeons (N = 11). Results showed that surgeons outperformed the non-surgeons in motion path accuracy, motion path precision, economy of movement, motion smoothness, end-point accuracy and end-point precision. The six objective parameters can complement existing assessment methods to better quantify a trainee’s performance. These parameters also could provide information of hand movements that cannot be measured with the human eye. An assessment strategy using appropriate parameters could help trainees learn on computer-based systems, identify their mistakes and improve their skill towards the competency, without relying too much on bench models and cadavers.

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Azad, Murari Lal, Pradip Kumar Sadhu, P. Arvind, Anagh Gupta, Tuhin Bandyopadhyay, Soumya Das, and Sabyasachi Samanta. "An efficient Mppt approach of PV systems: incremental conduction pathway." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 3 (September 1, 2019): 1189. http://dx.doi.org/10.11591/ijeecs.v15.i3.pp1189-1196.

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Distributed Generation source have wide application due to their phenomenal advantages. These sources include Photovoltaic (PV) cells producing DC voltage at their output that connects the network through a power electronic interface. PV characteristics, on the other hand, illustrate the fact that maximum power can be extracted at the optimal operating point depending upon the solar radiation and ambient temperature. In order to keep the PV module at its optimal operating point, a DC-DC converter is often used between a PV module and inverter. Consequently, Maximum power point trackers (MPPT) grab the foremost position in the efficiency analysis of the global PV system. Among the several MPPT algorithms, Incremental Conduction technique isemphasised upon as it is extremely simple in implementation within electronic programmable circuits. This paper incorporates the MPPT model using a PV module that always works in its optimal operating point. Design and experimental results of a small prototype of MPPT is presented here based on the Simulink model to verify the advantages of proposed integrated system.

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Aswal, Pankaj, Mayank Chaturvedi, Puspender Singh, and Pradeep Kumar Juneja. "Concentrating Power for MPPT Solar PV Module forming Channelization of Efficient Energy." Indonesian Journal of Electrical Engineering and Computer Science 4, no. 3 (December 1, 2016): 526. http://dx.doi.org/10.11591/ijeecs.v4.i3.pp526-531.

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The energy of photovoltaic (PV) is going to become a most relevant part of renewable energy in world, by PVC Cell system for sufficient energy extraction this research will scrutinize the solar PV energy generation and conversion by effective devices to grid alliances Here this treatise target on I-V and P-V characteristics of Photo volatile modules or array, primarily under irregular shading condition, the model development of PV system and considering both physical and electrical parameters of solar PV module. The treatise ponder that how disparate bypass diode collocation could be influences maximum power conclusion characteristics of a solar PV module or array.

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Harimurti, Rina, Ekohariadi Ekohariadi, Munoto Munoto, and I. G. P. Asto Buditjahjanto. "Integrating k-means clustering into automatic programming assessment tool for student performance analysis." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 3 (June 1, 2021): 1389. http://dx.doi.org/10.11591/ijeecs.v22.i3.pp1389-1395.

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Computer programming is a subject involving a large number of logic programming activities. A programmer is compulsory to master skills of algorithms, logic, and programming language to conduct programming. An automatic programming assessment tool is an automated tool used to assist instructors in assessing programming tasks. The technology used in this application is open-source based with an evaluation module that will evaluate the sent program code, assessment, and classification. The evaluation results were then processed in the assessment module, where a comparison process with the test case was performed along with the point calculation. The classification module was used to divide students into five groups based on the point of each practicum. This study used k-means clustering classification method. The entities included were lecturers, assistants, students, and compilers. This application had 2 levels of users namely admin and students. Scoring results were then used in the process of determining the classification of student’s performance based on the k-means clustering method. In connection with the classification test results with three iterations, three practicum scores resulted that the classification process was successfully carried out with student’s performance divided into five groups covering very good, good, sufficient, less, and very less. The data used in the clustering process consisted of 41 students with 10 attributes which were then grouped into 3 groups (clusters).

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Numan, Ali Hussein, Zahraa Salman Dawood, and Hashim A. Hussein. "Theoretical and experimental analysis of photovoltaic module characteristics under different partial shading conditions." International Journal of Power Electronics and Drive Systems (IJPEDS) 11, no. 3 (September 1, 2020): 1508. http://dx.doi.org/10.11591/ijpeds.v11.i3.pp1508-1518.

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Recently, the renewable energy resources have gained more attention in the electricity sector as promising technology to tackle the depletion in the traditional energy resources. Solar energy grows rapidly due to its vast applications. The performance of Photovoltaic (PV) system is affected by partial shading that results from building, clouds, and fallen leaves. This paper investigates theoretically and experimentally the impacts of various cases of partial shading; such as vertical string, horizontal string, and single cell at environmental conditions on the current-voltage and power-voltage characteristics of 88 W PV panel. In addition, diagonal shading with multi steps is considered in the analysis. The experiments are conducted with considering various parameters; such as shading position and ratio to validate the simulated results. The results show that at 100% shading condition, the maximum power drops by 99.36 %, 43.7%, and 41.15% for horizontal, cellular and vertical shading at the same solar radiation level comparing with their initial state value. Horizontal string shaded has the highest negative impact on the power and efficiency among other types of shadings. The comparison between the theoretical and experimental results reveals considerable agreement between the theoretical and experimental results.

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Zohra Kessaissia, Fatma, Abdallah Zegaoui, Rachid Taleb, Chahinez Fares, and Michel Aillerie. "Design of experiments approach for modeling the electrical response of a photovoltaic module." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 3 (December 1, 2020): 1140. http://dx.doi.org/10.11591/ijeecs.v20.i3.pp1140-1147.

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In the current paper, modeling and evaluation of the significant effect of independent variables on the behavior of the electrical response of a multi- crystalline photovoltaic (PV) module using design of experiments (DoE) approach is simulated. The main purpose of this contribution is to evaluate the maximum power response dependence within the indoor conditions of both variations of solar irradiation and surface temperature and checking the pertinent one on the defined response. The DoE approach is used for estimating both main and combined effect of the two independents considered variables. Multiple linear regression was been introduced to justify the relationship between the independent input variables and dependent output variable, also to determine which input factor is the most significant on the output variable. The DoE model can be used for predicting the response variable at different operating condition in a considered domain study. In addition, DoE approach based on statistical tool for analyzing the accuracy of the predictive model, then the significance of coefficients in the predictive model using statistical and graphical analysis. Therefore, an ANOVA Table can summarize the results, detect the parameters influences on responses variations and determine the best predictive model then reproduce the most possible the experimental data.

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Kim, Se-Hoon, Min-Ho Jeon, Yeon-Ju Jo, and Chang-Heon Oh. "Development of marine observation system using LPWA communication system for marine IoT service." Indonesian Journal of Electrical Engineering and Computer Science 19, no. 3 (September 1, 2020): 1556. http://dx.doi.org/10.11591/ijeecs.v19.i3.pp1556-1563.

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Because oceans account for 70.8% of the Earth's surface, various Internet-of-Things (IoT) applications for the marine industry are being researched and developed. The success of an IoT technology in the maritime industry depends on the location tracking technology used and how far it can communicate. In this study, we implemented a marine observation system using low power wide area (LPWA) communication technology to provide maritime IoT services. The proposed marine observation system consists of a marine IoT module and an ocean observation monitoring system. The information collected is GPS information and communication signal reception strength. As a result of an actual field test, we were able to obtain the distance to the gateway by measuring the position through the marine IoT module, and we found that the intensity of communication was proportional to the change in sea level.

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Ayop, Razman, and Chee Wei Tan. "An Adaptive Controller for Photovoltaic Emulator using Artificial Neural Network." Indonesian Journal of Electrical Engineering and Computer Science 5, no. 3 (March 1, 2017): 556. http://dx.doi.org/10.11591/ijeecs.v5.i3.pp556-563.

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The photovoltaic (PV) emulator is a nonlinear power supply that features the similar characteristic of the PV module. However, the nonlinear characteristic of the PV module causes instability of the PV emulator output. The conventional solution is to operate the PV emulator in the overdamped condition which results in a poor dynamic performance. This drawback is solved by manipulating the proportional and integral gains of the proportional-integral (PI) controller. In this paper, the artificial neural network is used in the adaptive PI controller to maintain a stable and fast dynamic response of the PV emulator. This has been simulated with varied output resistance and irradiance. By comparing the proposed control strategy with the conventional method during start-up response of the photovoltaic emulator, the dynamic performance of the output current has shown an improvement of up to 80 % faster than the conventional method.

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N, Bharatesh, and Rohith S. "FPGA Implementation of Park-Miller Algorithm to Generate Sequence of 32-Bit Pseudo Random Key for Encryption and Decryption of Plain Text." International Journal of Reconfigurable and Embedded Systems (IJRES) 2, no. 3 (November 1, 2013): 99. http://dx.doi.org/10.11591/ijres.v2.i3.pp99-105.

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There are many problems arises in randomized algorithms whose solutions are fundamentally based on assumptions that pure random numbers exist, so pseudo-random number generators can imitate randomness sufficiently well for most applications. The proposed scheme is a FPGA implementation of Park-Miller Algorithm for generating sequence of Pseudo-Random keys. The properties like High speed, low power and flexibility of designed PRNG(Pseudo Random Number Generator) makes any digital circuit faster and smaller. The algorithm uses a PRNG Module, it contains 32-bit Booth Multiplier, 32-bit Floating point divider and a FSM module. After generating a sequence of 32-bit Pseudo-Random numbers we have used these numbers as a key to Encrypt 128-bit plain text to become a cipher text and by using the same key to decrypt the encrypted data to get original Plain text. The Programming is done in Verilog-HDL, successfully synthesized and implemented in XILINX Spartan 3E FPGA kit.

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Chamorro Atalaya, Omar, and Dora Arce Santillan. "Fire alert system through text messages, with arduino mega technology and GSM SIM 900 module." Indonesian Journal of Electrical Engineering and Computer Science 18, no. 3 (June 1, 2020): 1215. http://dx.doi.org/10.11591/ijeecs.v18.i3.pp1215-1221.

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The purpose of this article is to develop a fire alert system, to implement under the use of Arduino Mega technology and GSM module SIM 900 (GSM: Global System for mobile communications, SIM: Minimum System), with which through The programming and interconnection between these components can be obtained by capturing data through MQ2 sensors installed in the Industrial Automation Laboratory of the National Technological University of South Lima, and then send a fire alert signal through text messages to a mobile equipment located outside the laboratory; at a distance of 1000 meters; The relevance of this research is that its optimal response, detects the application of this system to the industrial park of Villa El Salvador, which has multiple warehouses, which a newspaper is affected by fire hazards, by the amount of flammable material They owned. Developing the investigation will determine the existence of a correlation factor of 0.973, between the reception time of the alert signal, with respect to the distance in the MQ2 sensor to detect the smoke; This factor tells us to state that the correlation is significant between both variables; with a ratio percentage equal to 98.90%, which was selected by the determination factor R2.

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Goyal, Ranjan, Anuradha Gnanaprakasam, and Paritosh Pal Singh. "Identification of mobile vehicle through multilayer intercommunication." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 3 (March 1, 2020): 1390. http://dx.doi.org/10.11591/ijeecs.v17.i3.pp1390-1398.

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In the recent times of data transmission, applying the Internet of Things (IoT) device, networking to the various IoT modules is still a great challenge with the deployment stage. Very few localities in the world have the deployed IoT module integrated in its communication, but still maximum of the location are in testbed. As a practical application, the IoT modules can be used to collect the information about either the drunken person who is driving the vehicle or the heavily loaded vehicles. The vehicle that we are about to search should be integrated with the IoT module. In this paper, a novel approach for object tracking specifically the drunken driving person and the heavily loaded vehicle is proposed to ensure the follow of rules and prevent any mis happening. The task is to identify the exact vehicle which does not follow the rules which can be tracked and eliminated. For that we are proposing a simple methodology on identifying the vehicle by the tracking the locality of the vehicle as a cluster of nodes where the cluster provides the key inference on how the vehicles are interrelated in the learning environment.

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Eriyadi, Mindit, Ade Gafar Abdullah, Hasbullah Hasbullah, and Sandy Bhawana Mulia. "Internet of things and fuzzy logic for smart street lighting prototypes." IAES International Journal of Artificial Intelligence (IJ-AI) 10, no. 3 (September 1, 2021): 528. http://dx.doi.org/10.11591/ijai.v10.i3.pp528-535.

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Internet of things (IoT) and fuzzy logic are very useful in increasing the efficiency and effectiveness of a system; this study applies both to the street lighting systems. The prototype of a street lighting control and monitoring system has been completed. The status of lights that are on or off and the value of the light intensity can be monitored by using IoT. The intensity of the light is fuzzy controlled by utilizing the presence of vehicles and pedestrians around the lights. The prototype is made with a scale against real conditions. Data is processed and transmitted using a microcontroller and Wi-Fi on the IoT module. Mobile applications have been used on smartphone interfaces to monitor and control lamps wherever they are connected to the Internet. Changes in the status of lights to turn on or off are done by the relay module. The fuzzy light intensity control system uses sensors and microcontrollers by utilizing the presence of vehicles and pedestrians around the lights. Performance evaluation has been carried out on a miniature street lighting with the results of monitoring and control following its function. An analysis of the resulting energy savings has been demonstrated.

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Uthirasamy, R., U. S. Ragupathy, and R. Naveen. "Structure of 15-Level Sub-Module Cascaded H-Bridge Inverter for Speed Control of AC Drive Applications." International Journal of Power Electronics and Drive Systems (IJPEDS) 5, no. 3 (February 1, 2015): 404. http://dx.doi.org/10.11591/ijpeds.v5.i3.pp404-414.

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This paper deals with the implementation of a single phase 15-level Sub-Multilevel Cascaded H-Bridge Inverter (SMCHBI) for variable speed industrial drive applications. It consists of sub-multilevel modules and H-bridge inverter configuration. Sub-multilevel switches synthesize stepped DC link voltage and current from the DC sources. H-bridge inverter switches renovate stepped DC link voltage and current into sinusoidal waveform. Compared with conventional Cascaded Multilevel Inverter (CMLI), the proposed system employs the reduced number of power switches, DC sources and gate driver requirements. The proposed system not only reduces the overall system cost but also reduces the voltage stress across the inverter switches. The proposed system does not required additional resonant soft switching circuits for Zero Voltage Switching (ZVS) of inverter. In the proposed method, variable frequency method is adopted for the speed control of industrial induction motor drives. A prototype model of 15-level SMCHB is developed and the performance of the systems is validated experimentally.

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Saadaoui, Farid, Khaled Mammar, and Abdaldjabar Hazzab. "Modeling of photovoltaic system with maximum power point tracking control by neural networks." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 3 (September 1, 2019): 1575. http://dx.doi.org/10.11591/ijpeds.v10.i3.pp1575-1591.

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This paper presented the study, development and implementation of the maximum power point of a photovoltaic energy generator adapted by elevator converter and controlled by a maximum power point command. In order to improve photovoltaic system performance and to force the photovoltaic generator to operate at its maximum power point, the idea of the context of this paper deals with the exploitation of the technique of the artificial intelligence mechanism (neural network) certainly based on the three parts of the photovoltaic system (photovoltaic module inputs (temperature and solar radiation), photovoltaic module and control (MPPT)) that have been adopted within a simulation time of 24 hours.In addition, to reach the optimal operating point regardless of variations in climatic conditions, the use of a neuron network based disturbance and observation algorithm (P&O) is put into service of the system given its reliability, its simplicity and view that at any time it can follow the desired maximum power.The entire system is implemented in the Matlab / Simulink environment where simulation results obtained are very promising and have shown the effectiveness and speed of neural technology that still require a learning base so to improve the performance of photovoltaic systems and exploit them in energy production, as well as this technique has proved that these results are much better in terms (of its very great precision and speed of computation) than those of the controller based on the conventional MPPT method P&O.

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Hashim, Norazlan, Zainal Salam, Dalina Johari, and Nik Fasdi Nik Ismail. "DC-DC Boost Converter Design for Fast and Accurate MPPT Algorithms in Stand-Alone Photovoltaic System." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 3 (September 1, 2018): 1038. http://dx.doi.org/10.11591/ijpeds.v9.i3.pp1038-1050.

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The main components of a Stand-Alone Photovoltaic (SAPV) system consists of PV array, DC-DC converter, load and the maximum power point tracking (MPPT) control algorithm. MPPT algorithm was used for extracting maximum available power from PV module under a particular environmental condition by controlling the duty ratio of DC-DC converter. Based on maximum power transfer theorem, by changing the duty cycle, the load resistance as seen by the source is varied and matched with the internal resistance of PV module at maximum power point (MPP) so as to transfer the maximum power. Under sudden changes in solar irradiance, the selection of MPPT algorithm’s sampling time (TS_MPPT) is very much depends on two main components of the converter circuit namely; inductor and capacitor. As the value of these components increases, the settling time of the transient response for PV voltage and current will also increase linearly. Consequently, TS_MPPT needs to be increased for accurate MPPT and therefore reduce the tracking speed. This work presents a design considerations of DC-DC Boost Converter used in SAPV system for fast and accurate MPPT algorithm. The conventional Hill Climbing (HC) algorithm has been applied to track the MPP when subjected to sudden changes in solar irradiance. By selecting the optimum value of the converter circuit components, a fast and accurate MPPT especially during sudden changes in irradiance has been realized.

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Othman, Muhammad Murtadha, Muhamad Amirul Naim Mohd Jamaluddin, Faisal Fauzi, Ismail Musirin, and Mohammad Lutfi Othman. "Improved reliability assessment of backup battery storage integrated with power supply system in a building." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 3 (September 1, 2019): 1538. http://dx.doi.org/10.11591/ijpeds.v10.i3.pp1538-1546.

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This paper presents the improved analysis of reliability for battery storage used in power system. The reliability assessment of this paper includes the evaluation of reliability of the system components, battery module and power electronic components. Battery storage is considered as one of energy storage and energy source that commonly used in power system. The evaluation of the reliability of power systems utilising with the storage batteries is performed by using the Markov chain process. The computation of the reliability is conducted by referring to the generated reliability block begins from power supply system. Every part of the system is evaluated regarding two specific states that are in normal or failure mode. By using the Markov method, the system unavailability and failure frequency can be computed.This paper presents the improved analysis of reliability for battery storage used in power system. The reliability assessment of this paper includes the evaluation of reliability of the system components, battery module and power electronic components. Battery storage is considered as one of energy storage and energy source that commonly used in power system. The evaluation of the reliability of power systems utilising with the storage batteries is performed by using the Markov chain process. The computation of the reliability is conducted by referring to the generated reliability block begins from power supply system. Every part of the system is evaluated regarding two specific states that are in normal or failure mode. By using the Markov method, the system unavailability and failure frequency can be computed.

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A. Suthar, Haresh. "VHDL Implementation of H.264 Video Coding Standard." International Journal of Reconfigurable and Embedded Systems (IJRES) 1, no. 3 (November 1, 2012): 95. http://dx.doi.org/10.11591/ijres.v1.i3.pp95-102.

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This Paper contains VHDL implementation of H.264 video coding standard, which is new video coding standard of the ITU-T Video Coding Experts Group and the ISO/IEC Moving Picture Experts Group. The main goal of the H.264/AVC standardization effort is to enhance compression performance and provision of a “network-friendly” video representation addressing “conversational” (video telephony) and “no conversational” (storage, broadcast, or streaming) applications.H.264 video coder standard is having fundamental blocks like transform and quantization, Intra prediction, Inter prediction and Context Adaptive Variable Length Coding (CAVLC). Each block is designed and integrated to one top module in VHDL.

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Bendib, Sonia Sabrina, Hamoudi Kalla, and Salim Kalla. "Bi-objective Scheduling with cooperating Heuristics for Embedded Real-Time Systems." Indonesian Journal of Electrical Engineering and Computer Science 9, no. 3 (March 1, 2018): 789. http://dx.doi.org/10.11591/ijeecs.v9.i3.pp789-798.

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This paper proposes Makespan and Reliability based approach, a static sheduling strategy for distributed real time embedded systems that aims to optimize the Makespan and the reliability of an application. This scheduling problem is NP-hard and we rely on a heuristic algorithm to obtain efficiently approximate solutions. Two contributions have to be outlined: First, a hierarchical cooperation between heuristics ensuring to treat alternatively the objectives and second, an Adapatation Module allowing to improve solution exploration by extending the search space. It results a set of compromising solutions offering the designer the possibility to make choices in line with his (her) needs. The method was tested and experimental results are provided

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Gopal, P. Bala, and K. Hari Kishore. "An FPGA Implementation of On Chip UART Testing with BIST Techniques." International Journal of Reconfigurable and Embedded Systems (IJRES) 5, no. 3 (November 1, 2016): 176. http://dx.doi.org/10.11591/ijres.v5.i3.pp176-182.

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A Universal Asynchronous Receiver Transmitter (UART) is usually implemented for asynchronous serial communication, mostly used for short distance communications. It allows full duplex serial communication link and is used in data communication and control system. Nowadays there is a requirement for on chip testing to overcome the product failures. This paper targets the introduction of Built-in self test (BIST) for UART to overcome the above two constraints of testability and data integrity. The 8-bit UART with BIST module is coded in Verilog HDL and synthesized and simulated using Xilinx XST and implemented on SPARTAN 3E FPGA. Results indicate that this model eliminates the need for expensive testers and thereby it can reduce the development time and cost.

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Nadzir, Norsaidah Muhamad, M. K. A. Rahim, F. Zubir, and H. A. Majid. "Long-Range Monitoring System with PDMS Material." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 3 (June 1, 2018): 974. http://dx.doi.org/10.11591/ijeecs.v10.i3.pp974-979.

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This paper describes the development of a long range monitoring system that integrates Cottonwood: UHF Long Distance RFID reader module with Raspberry Pi 3. When a UHF RFID tag is within the UHF RFID reader antenna’s range, the unique ID of the tag will be transferred to the Raspberry Pi 3 to be processed. Then, the data will be sent over to the database wirelessly to be managed, stored, and displayed. The paper also describes the measurement done to determine the most suitable thickness of PDMS material so that it could be incorporated as a wearable transponder. After the result is calculated and tabulated, it can be concluded that the most suitable thickness of PDMS material for the transponder is 8 mm.

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Diep, Nguyen Thi, Nguyen Kien Trung, and Tran Trong Minh. "Wireless power transfer system design for electric vehicle dynamic charging application." International Journal of Power Electronics and Drive Systems (IJPEDS) 11, no. 3 (September 1, 2020): 1468. http://dx.doi.org/10.11591/ijpeds.v11.i3.pp1468-1480.

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This paper proposes and demonstrates a wireless power transfer system design for electric vehicle dynamic charging applications. The dynamic wireless charging (DWC) lane is designed for modularly. Each module has three shorttrack transmitter coils that are placed closely together and connected to a single inverter to reduce the number of inverters. The magnetic coupler design is analyzed and optimized by finite element analysis (FEA) to reduce the output power variation during dynamic charging. The LCC compensation circuit is designed according to the optimal load value to obtain maximum efficiency. The SIC devices are used to improve the efficiency of the high-frequency resonant inverter. A 1.5 kW dynamic charging system prototype is constructed. Experimental results show that the output power variation of 9.5% and the average efficiency of 89.5% are obtained in the moving condition.

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Selvan, S. Tamil, and M. Sundararajan. "Design and implementation of CNTFET based ternary 1x1 memories." International Journal of Reconfigurable and Embedded Systems (IJRES) 8, no. 3 (November 1, 2019): 175. http://dx.doi.org/10.11591/ijres.v8.i3.pp175-184.

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In this paper presented Design and implementation of CNTFET based Ternary 1x1 RAM memories high-performance digital circuits. CNTFET Ternary 1x1 SRAM memories is implement using 32nm technology process. The CNTFET decresase the diameter and performance matrics like delay,power and power delay, The CNTFET Ternary 6T SRAM cell consists of two cross coupled Ternary inverters one is READ and another WRITE operations of the Ternary 6T SRAM cell are performed with the Tritline using HSPICE and Tanner tools in this tool is performed high accuracy. The novel based work can be used for Low Power Application and Access time is less of compared to the conventional CMOS Technology. The CNTFET Ternary 6T SRAM array module (1X1) in 32nm technology consumes only 0.412mW power and data access time is about 5.23ns.

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Laila Ahmad, Ida, and Mohd Ridzuan Ahmad. "Tapered Microchannel for Multi-particles Passive Separation Based on Hydrodynamic Resistance." Indonesian Journal of Electrical Engineering and Computer Science 5, no. 3 (March 1, 2017): 628. http://dx.doi.org/10.11591/ijeecs.v5.i3.pp628-635.

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Researches on separation of multi-particles utilizing microfluidic have been flourishing in recent years with the aid from advancements in microfabrication design and technology. Generally, separation is beneficial for biomedical application especially involving heterogeneous samples. Due to inherent problems of samples isolation, a simple and efficient separation device is required. Here, we present a passive tapered microchannel for multi-particles separation using hydrodynamic principle. Our emphasis is on the effect of hydrodynamic resistance coupled with tapered microchannel design. In the experiment, successful multi-particles samples separation was observed. The results were further analyzed and were in agreement with the proposed concept. This method opens the route toward robust, low-cost and high-throughput, thus it may holds potential to be integrated as one functional module in micro total analysis system.

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Tlijani, Hatem, Abir Aissaoui, and Rached Ben Younes. "Optimization of tilt angle for solar panel: Case study Tunisia." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 3 (December 1, 2017): 762. http://dx.doi.org/10.11591/ijeecs.v8.i3.pp762-769.

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This paper is a comparisation study between an experimental data and Matlab simulation of output PV characteristic affected by the orientation and the tilt angle of a photovoltaic solar module with inclined plane and by the dimension of the panel. The PV panel was rotated towards the east, south and west and positioned for the angles 0°, 30°, 45°, 60° and 90°. In this position, the values of current, voltage and power are measured. In the other side, using the mathematical model to calculate the solar radiation incident on an inclined surface as a function of the tilt angle was developed in MATLAB/SIMULINK model. The optimum angles were determined as positions in which maximum values of solar irradiation and maximum power were registered to characterize the P-V and V-I photovoltaic panel.

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Azimi Mahmud, Mohd Saiful, Salinda Buyamin, Musa Mohd Mokji, and M. S. Zainal Abidin. "Internet of Things based Smart Environmental Monitoring for Mushroom Cultivation." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 3 (June 1, 2018): 847. http://dx.doi.org/10.11591/ijeecs.v10.i3.pp847-852.

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Environmental condition is a significant factor that needs to be controlled in mushroom production. Mushrooms are unable to grow if the temperature is higher than 33°C or lower than 25°C. Thus, this work focuses on developing an automatic environmental control system to provide optimum condition to mushroom production house. Environmental factors considered in the system are temperature, humidity and carbon dioxide. For this, DHT11 temperature humidity sensor and MQ135 CO2 sensor are connected to the ESP8266 Wi-Fi module to become IoT (Internet of Things) sensors that send big amount of data to the internet for monitoring and assessment. This enable users to monitor the environmental condition anywhere whenever accessing the internet. Based on the analysis of the data, the system will automatically on and off the irrigation system to put the temperature at an optimum level.

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Abana, Ertie Cusipag, Meljiflor Pacion, Roxanne Sordilla, Daniel Montaner, Dennis Agpaoa, and Rryma Mae Allam. "Rakebot: a robotic rake for mixing paddy in sun drying." Indonesian Journal of Electrical Engineering and Computer Science 14, no. 3 (June 1, 2019): 1165. http://dx.doi.org/10.11591/ijeecs.v14.i3.pp1165-1170.

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Sun drying is a conventional drying method of paddy commonly used in Asia. During the process, grains are mixed and turned continuously using a rake to maintain good quality. For this reason, a robotic rake or Rakebot was developed in this study to properly mix the grains during sun drying. Rakebot is manually controlled using a mobile application through Bluetooth connection but can also move automatically using the previous movements that were recorded on the first used. It was developed using a microcontroller that gives directions to the motors based on the received instructions from the mobile application. The recorded movements are saved in a memory card by means of a memory card module connected to the microcontroller. The objective measures showed that the Rakebot ensures simultaneous reduction of the moisture content of paddy. Also, the rake design of the robot prevents fissuring of grains.

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Kakar, S., S. M. Ayob, N. M. Nordin, M. S. Arif, A. Jusoh, and N. D. Muhamad. "A novel single-phase PWM asymmetrical multilevel inverter with number of semiconductor switches reduction." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 3 (September 1, 2019): 1133. http://dx.doi.org/10.11591/ijpeds.v10.i3.pp1133-1140.

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In this paper, a new asymmetrical multilevel inverter topology (MLI) is proposed with the objectives of using decreased number of semiconductor switches, dc voltage sources, gate driver circuits and dc links. The structure of presented MLI is very simple and modular. The fundamental module of this structure consists of nine semiconductor switches (eight unidirectional and one bidirectional) and four asymmetrical configured DC sources (ratio of 1:2), which can generate 13-level output voltage. To validate the design, a Matlab-Simulink based model is developed. For this paper, a Sinusoidal Pulse Width Modulation (SPWM) is deployed as the switching strategy of the proposed MLI. The circuit model is simulated under pure resistive and inductive loads. It will be shown that the circuit performs well under both loads. Comparison with traditional MLIs and other recently introduced MLIs will be conducted to show the superiority of the proposed MLI in terms of reduced number of devices and lower voltage stress across the switches.

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Doss, M. Arun Noyal, K. Mohanraj, Sayantan Bhattacharjee, Maulik Tiwari, and Devashish Vashishtha. "Photovoltaic fed multilevel inverter using reverse voltage topology for standalone systems." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 3 (September 1, 2019): 1347. http://dx.doi.org/10.11591/ijpeds.v10.i3.pp1347-1354.

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Multilevel Inverters are generally utilized for medium voltage and high power applications. Invented in 1975, MLIs have brought huge change in the field of Electrical and Electronics. It contains distinctive topologies. This paper proposes a photovoltaic aided multilevel inverter with Reverse Voltage topology with diminished number of switches. In comparison to other existing topologies this topology utilizes minimum number of switches and less number of carrier signals which in turns diminishes the complexity of the system as well as cost. The proposed framework contains five MOSFETs, five diodes to create eleven levels. In this topology the SPWM strategy has been utilized. This topology utilizes one sine wave and five triangular waves, which is half in comparison to the existing topologies. As sustainable power sources can be utilized for multilevel inverter, photovoltaic cell has been utilized. The MATLAB recreation for both solar powered module and Multilevel inverter has been appeared alongside the equipment approach.

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Lindiya, Augusti, S. Palani, and K. Vijayarekha. "Compensator Based Perfromance Enhancement Strategy for a SIQO Buck Converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 3 (September 1, 2016): 800. http://dx.doi.org/10.11591/ijpeds.v7.i3.pp800-815.

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This paper attempts to design lag and lag-lead compensators for improving the performance of a Single Inductor Quad Output (SIQO) dc-dc buck converter in terms of time domain and frequency domain specifications. It develops the state space averaged model to find the duty ratio of the desired output voltages at steady state. The exercise arrives at the transfer function model from the state space averaged model through the use of its lumped small signal equivalent circuit which allows analyzing the performance of the system in frequency and time domains. The responses are derived in the MATLAB/Simulink® using discrete components incorporating compensators of the converter. The hardware results obtained using Data Acquisition Module DT9834® interfaced to MATLAB/Simulink® and prototype model establish the performance of the compensator based converter and further emphasize its ability to minimize the ripples over a range of operating loads.

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Mohammed, Raya Kahtan, and Yoichiro UENO. "An FPGA-based Network Firewall with Expandable Rule Description." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 3 (June 1, 2018): 1310. http://dx.doi.org/10.11591/ijeecs.v10.i3.pp1310-1318.

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With the rapid growth of communications via the Internet, the need for an effective firewall system which has not badly affect the overall network performances has been increased. In this paper, a Field Programmable Gate Array (FPGA) -based firewall system with high performance has been implemented using Network FPGA (NetFPGA) with Xilinx Kintex-7 XC7K325T FPGA. Based on NetFPGA reference router project, a NetFPGA-based firewall system was implemented. The hardware module performs rule matching operation using content addressable memory (CAM) for higher speed data processing. To evaluate system performance, throughput, latency, and memory utilization were measured for different cases using different tools, also the number of rules that an incoming packet is subjected to was varied to get more readings using both software and hardware features. The results showed that the designed firewall system provides better performance than traditional firewalls. System throughput was doubled times of the one with Linux-Iptables firewalls.

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Samsudin, S. I., S. I. M. Salim, K. Osman, S. F. Sulaiman, and M. I. A. Sabri. "A Smart Monitoring of a Water Quality Detector System." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 3 (June 1, 2018): 951. http://dx.doi.org/10.11591/ijeecs.v10.i3.pp951-958.

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The importance to monitor the water quality level is undeniable due to significant impact to human health and ecosystem. The project aims to develop a wireless water quality monitoring system that aids in continuous measurements of water conditions based on pH and turbidity measurements. These two sensors are connected to microprocessor and transmitted to the database by using a Wi-Fi module as a bridge. The developed system was successfully detect both the pH and turbidity values hence updating in IoT platform. Based on the results obtained, the test water sample can be classified to class IIB which is suitable for water recreational used body contact. Overall, the developed system offers fast and easy monitoring of pH and turbidity levels with IoT application for continuous maintenance of clean water. The work is just concern on the physical water parameters hence further extend to chemical parameter for verifying a better result in measuring the WQI value.

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Basri, Nasrah Hassan, Wan Adilah Wan Adnan, and Hanif Baharin. "An exploratory study of users’ experiences with e-participation: a case study of Malaysia." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 3 (September 1, 2019): 1138. http://dx.doi.org/10.11591/ijeecs.v15.i3.pp1138-1143.

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The need to encourage citizens’ adoption of e-participation services has prompted an expanding enthusiasm for the evaluation of e-participation websites. The achievement of e-participation websites depends intensely on how well it is perceived by the users. E-participation is a relatively new approach, so it is important to evaluate it deliberately, in order to comprehend it better, obtain more knowledge about it and distinguish the preferences and advantages it offers, and not to overlook its disadvantages so that we can improve it. Concerning evaluation, many researchers have concentrated on infrastructure and technical issues without giving more attention to user experience as one of the core elements impacting the success or failure of e-participation websites. This paper evaluated e-participation module that located in Malaysia e-government website by utilizing think-aloud method. Think-aloud was being utilized to gauge the perceptions of citizens in their use of e-participation.

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Al-Asady, Heba Abdul-Jaleel, Hassan Falah Fakhruldeen, and Mustafa Qahtan Alsudani. "Channel estimation of OFDM in C-band communication systems under different distribution conditions." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 3 (September 1, 2021): 1778. http://dx.doi.org/10.11591/ijeecs.v23.i3.pp1778-1782.

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Orthogonal frequency division multiplexing (OFDM) is a transmission system that uses multiple orthogonal carriers that are sent out at the same time. OFDM is a technique for mobile and wireless communication that has high-efficient frequency utilization, high data-rate transmission, simple and efficient implementation using the fast Fourier transform (FFT) and the inverse fast Fourier transform (IFFT), and reduces inter symbol interference (ISI) by inserting cyclic prefix (CP). One of the most important approaches in an OFDM system is channel estimation. In this paper, the orthogonal frequency division multiplexing system with the Rayleigh channel module is analyzed for different areas. The proposed approach used large numbers of subcarriers to transmit the signals over 64-QAM modulation with pilot add channel estimation. The accuracy of the OFDM system is shown in the measuring of the relationships of peak power to the noise ratio and bit error rate.

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Whit Ney, Heh, Ab Al-Hadi Ab Rahman, Ainy Haziyah Awab, Mohd Shahrizal Rusli, Usman Ullah Sheikh, and Goh Kam Meng. "Hardware design of a scalable and fast 2-D hadamard transform for HEVC video encoder." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 3 (September 1, 2019): 1401. http://dx.doi.org/10.11591/ijeecs.v15.i3.pp1401-1410.

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This paper presents the hardware design of a 2-dimensional Hadamard transform used the in the rate distortion optimization module in state-of-the-art HEVC video encoder. The transform is mainly used to quickly determine optimum block size for encoding part of a video frame. The proposed design is both scalable and fast by 1) implementing a unified architecture for sizes 4x4 to 32x32, and 2) pipelining and feed through control that allows high performance for all block sizes. The design starts with high-level algorithmic loop unrolling optimization to determine suitable level of parallelism. Based on this, a suitable hardware architecture is devised using transpose memory buffer as pipeline memory for maximum performance. The design is synthesized and implemented on Xilinx Kintex Ultrascale FPGA. Results indicate variable performance obtained for different block sizes and higher operating frequency compared to a similar work in literature. The proposed design can be used as a hardware accelerator to speed up the rate distortion optimization operation in HEVC video encoders.

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Othman, S. M. N. S., M. F. Omar, S. K. Rahimi, and E. Sulaiman. "Elementary Analysis of Segmental Stator Flux Switching Permanent Magnet Machine." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 3 (September 1, 2018): 972. http://dx.doi.org/10.11591/ijpeds.v9.i3.pp972-978.

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Segmental structure is common especially for a rotor in electrical motor. It is to reduce the cost of production, conveniently replace, and as a module where the sum of electromagnetic torque produced comes from each segmental stator add up together. Thus, in this paper will be focusing on the elementary analysis of a segmental stator for single phase 6Slot-12Pole and 3 phase 6Slot-15Pole Switched-Flux Permanent Magnet Machine (SFPMM) as the chosen design for analysis validation from coventional permanent magnet flux switching machine to a new segmental stator structure of SFPMM. It will be focusing on the initial design and to prove that it can be operate as a flux switching machine by implement a 2D Finite Element Analysis simulations such as a No-load analysis (flux linkage, cogging torque, back emf) and Load-analysis (average electromagnetic torque. Elementary result shows that the electromagnetic torque produce for both design are 10.6 Nm and 99.95 Nm and proved that it can produce high torque although it does not surpass the conventional SFPMM. A further research and optimization will be needed to obtain a higher torque compared to conventional SFPMM.

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Rahman, N. H. Abdul, A. M. Omar, E. H. Mat Saat, N. I. Ilham, M. Z. Hussin, and Yusrina Y. "Design and development of three stages maximum power tracking solar charge controller." Indonesian Journal of Electrical Engineering and Computer Science 18, no. 3 (June 1, 2020): 1270. http://dx.doi.org/10.11591/ijeecs.v18.i3.pp1270-1278.

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This paper presents the design of a Three Stages Maximum Power Point Tracking (MPPT) charge controller for improving the charging/discharging control of the battery. In this research, Buck Converter is used to regulate the voltage from the Photovoltaic (PV) module to the required voltage. This research is limited to Valve Regulated Lead Acid (VRLA) battery for 12V system voltage. The charge control algorithm envisages controlling the charging and discharging action in all the three stages of battery charging, bulk, absorption, and float. The idea is to control the battery charging and discharging status until meeting the battery set-point. The set-point is limited to High Voltage Disconnect (HVD), Low Voltage Disconnect (LVD) and Load Voltage Reconnect (LVR) to protect the battery from over-charging and deep-discharging. The results obtained demonstrate the good performance of the charge controller. With the application of the MPPT algorithm in the bulk stage, the time taken to get the battery to fully charged state becomes faster The regulation power from the converter to the inverter has performed well and the switching relay is managed to be controlled.

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Rahimoon, Asif A., Mohd Noor Abdullah, and Ishkrizat Taib. "Design of a contactless body temperature measurement system using Arduino." Indonesian Journal of Electrical Engineering and Computer Science 19, no. 3 (September 1, 2020): 1251. http://dx.doi.org/10.11591/ijeecs.v19.i3.pp1251-1258.

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The recent advances in electronics and microelectronics devices allow the development of newly low-cost monitoring tools used by peoples for health preventive purposes. Sensors used in medical equipments convert various forms of human body vital signs into electrical signals. Therefore, the healthcare monitoring systems considering non-invasive and wearable sensors with integrated communication mediums allow an efficient solution to live a comfortable home life. This paper presents the remote monitoring of human body temperature (HBT) wirelessly by means of Arduino controller with different sensors and open source internet connection. The proposed monitoring system uses an internet network via wireless fieldity (wifi) connection to be linked with online portal on smart phone or computer. The proposed system is comprised of an Arduino controller, LM-35 (S1), MLX-90614 (S2) temperature sensors and ESP-wifi shield module. The obtained result has shown that real time temperature monitoring data can be transferred to authentic observer by utilizing internet of things (IoT) applications. The findings from this research indicates that the difference of average temperature in between Sensor S1 and S2 is about 15 0C

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Rusimamto, P. W., Endryansyah Endryansyah, L. Anifah, R. Harimurti, and Y. Anistyasari. "Implementation of arduino pro mini and ESP32 cam for temperature monitoring on automatic thermogun IoT-based." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 3 (September 1, 2021): 1366. http://dx.doi.org/10.11591/ijeecs.v23.i3.pp1366-1375.

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The purpose of this research is to monitor the temperature by applying arduino pro mini and ESP32 cam using IoT technology which is connected to a web interface. Arduino is used as the main brain of the system where arduino will read data from the MLX90614-ACF temperature sensor. Sensor data will continue to be sent to the server by arduino via the ESP32 cam module. This tool can also take pictures and send images automatically at the same time when measuring temperature. The captured image will automatically be sent to the PC/laptop monitor screen via the website. The website is used to display and monitor the results of temperature measurement data and display the image results from the ESP32 cam. The process of taking photos and measuring body temperature is done automatically. Users can also view data from sensors and photo data sent by arduino and ESP32 cam via the provided web interface. From the test results, this system has been running well where all sensor data is sent and can be displayed on the website. Images and measurement data results are sent to the monitor screen via the website interface with a measurement accuracy of 99.6%.

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Gurijala, Sridhar Babu, K. S. Srikanth, Ramchandra Nittala, and G. Rohit Reddy. "Transmission system regularization with 5-level cascaded IPFC." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 3 (September 1, 2019): 1437. http://dx.doi.org/10.11591/ijpeds.v10.i3.pp1437-1445.

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In recent years, there is an immensely huge demand to power due to industrialization and modernization, butcorrespondingly the amplification of generation and transmission has not been done due to constrained resources and environmental limitations. The huge growth in demand leads to various problems in power systems. Heavy growth in semiconductor technology made power electronics plays a key role in solving these problems. Flexible AC transmission system (FACTS) devices are used for fixing various problems in power system. They are used for enhancing the existing transmission capabilities and improving the system dynamic performance so that to make transmission system flexible and efficient in operation. Inter line power flow controller (IPFC) is a latest generation series connected FACTS device, having capability of controlling power flow among multi line in a transmission network. In this paper cascaded 5 level inverter is used as the inverter module for IPFC. Control techniques play a vital role in power flow control in the system, with the main objective of minimization of harmonics and obtaining a variable output with maximum fundamental component. This paper discusses various comparative case studies on IPFC with cascaded 5 level inverter using SPWM and SVM control techniques.

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Mohammed, Sarah Hashim, and Ammar Dawood Jasim. "Evaluation of Firewall and Load balance in Fat-Tree Topology Based on Floodlight Controller." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 3 (March 1, 2020): 1157. http://dx.doi.org/10.11591/ijeecs.v17.i3.pp1157-1164.

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Today it has become important to reconfigure the networks in to new form to be more manageable, scalable, dynamic and programmable. The networks recently are so inflexible and failing to deal with the required changes for the Information Technology. Software Defined Networking (SDN) is a modern paradigm that focused to change the main idea of current network infrastructure (traditional network) by breaking the chain between the data forwarding and the control planes to introduce flexible programmability network. This paper makes comparison between the performance of traditional fat-tree network and SDN fat-tree network, which found that average Round Tripe Time (RTT) in SDN fat-tree topology will decrease by 8.96% than traditional fat-tree topology. Then shows the basic operation of OpenFlow protocol that can be applied on fat-tree topology by using SDN technology and how that can be effect on the performance of network and make it more flexible to enable the SDN module applications, like load balancer and firewall for optimizing the SDN network. In this paper the physical switches are replaced by software switches in a virtual network environment and display the SDN structure in GUI, also Floodlight controller is chosen to use as the network operating system for SDN network.

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Sultan, Mohammed M., Amer T. Saeed, and Ahmed M. Sana. "Design and implementation of an adaptive multilevel wireless security system using IoT." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 3 (September 1, 2021): 1804. http://dx.doi.org/10.11591/ijeecs.v23.i3.pp1804-1813.

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Securing property plays a crucial role in human life. Therefore, an adaptive multilevel wireless security system (ML-WSS) based on the internet of things (IoT) has been proposed to observe and secure a certain place. ML-WSS consists of hardware and software components, such as a set of sensors, Wi-Fi module, and operation and monitoring mobile application (OMM). The OMM application is designed to remotely monitor and control the proposed system through the Internet and by using ThingSpeak cloud as a data store. The proposed scheme is based on dividing the required zone of the place into three regions (levels), low-risk region (LRR) as level-1, moderate-risk region (MRR) level-2, and high-risk region (HRR) as level-3. Each level may contain one or set of sensors, so the number of sensors, their placement, and under which level is labelled is specified according to the security requirements. Several processes are done based on these levels when a breach occurs in the system. Mathematical model and pseudocode were created to illustrate the mechanism of the proposed system. The results show that the proposed system has been implemented successfully and the number of breaches that occurs in level-3 area was reduced by 50% as compared to level-1.

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Manoharan, Premkumar, Karthick K, and Sowmya R. "A Comparative Study and Analysis on Conventional Solar PV Based DC-DC Converters and MPPT Techniques." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 3 (September 1, 2018): 831. http://dx.doi.org/10.11591/ijeecs.v11.i3.pp831-838.

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As electricity demand escalated with supply, though there are lot of thermal power station, nuclear energy and other conventional power sources. Yet, there is exhaustion in the above assets and adding dangerous impacts to the atmospheric conditions. The world searches for sustainable power source that it is normally accessible such as sun and wind. Apart from all the renewable energy resources, solar energy is readily harnessed for domestic application to meet demand. To increase the power conversion efficiency from the solar PV system it is better have a perfect DC to DC converters. The proposed outcome of this paper is to outline the DC to DC converter with MPPT algorithms to concentrate on extreme productivity at roof-top for solar PV application which decreases the cost of energy. In addition to that it also prevents panel miss matching at all environmental conditions for safer DC Voltage with flexible site design especially for domestic applications from the solar photovoltaic module. It is necessary to analyze the converters and MPPT algorithms under closed loop condition for the design and installation of solar PV system to the load or to the grid. This review summarizes few DC to DC converter topologies, maximum power point tracking algorithm and also paid attention on the advantages and disadvantages of these algorithms and topologies.

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Journal articles on the topic 'Modèle I3'

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