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1
Gordan, Daniel, and Marek Pástor. "Power Semiconductor Losses Simulation Capabilities in Matlab/Simulink." Acta Electrotechnica et Informatica 23, no. 4 (2023): 30–34. http://dx.doi.org/10.2478/aei-2023-0020.
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Abstract The paper describes methods of simulation conduction and switching losses of power semiconductors in MATLAB/Simulink. The comparison of simulation results for Infineon’s semiconductor with PLECS Standalone simulation is presented. The results show that the simple ideal switching model of the IGBT in Simulink gives similar results to the PLECS simulation with the Infineon PLECS library.
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Wang, Gang, Xin Hong Li, and Qiang Wei. "Attitude Control Module of Modular Spacecraft Simulation Based on Matlab/Simulink." Applied Mechanics and Materials 610 (August 2014): 501–5. http://dx.doi.org/10.4028/www.scientific.net/amm.610.501.
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According to the principle and the structure of attitude module of modular spacecraft,a matlab/simulink model library for attitude control module was build to resolve the problem of flee-tly modeling.Then its validity was proved by a simulation example.The library was embedded into the platform of matlab/simulink,so it is easy to use and can be serially improved.The methed will be helpful for modular spacecraft’s design and simulation.
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Zalizny, D. I. "Model of a Photovoltaic Module for the MatLab/Simulink SimPowerSystems Library." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 63, no. 6 (2020): 515–25. http://dx.doi.org/10.21122/1029-7448-2020-63-6-515-525.
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The relevance of research is caused by the increase of the number of photovoltaic power plants in the Republic of Belarus and, accordingly, the need to solve problems of diagnostics of photovoltaic modules. A new Simulink model of a photovoltaic module focused on using the standard SimPowerSystems library of power supply system elements (a part of the MatLab/Simulink) is proposed. The model allows altering solar irradiation values for each solar cell of the module. The use of the model also makes it possible to obtain calculated values of voltages and currents at the photovoltic module output. In addition, the model provides the simulation of individual solar cells shading in the module. The developed Simulink model operates on the base of a well-known exponential dependence describing the volt-ampere characteristic of a photovoltaic module, and also takes into account the real circuit of the module with bypass diodes. The series resistance of the photovoltaic module is calculated by the subtraction between its experimental and theoretical volt-ampere characteristics for conditions that are close to normal. The Simulink model of the SF-P672300 module contains 72 nonlinear elements implemented on the basis of controlled current sources and connected in series. The model solved the problems of the algorithm stability for calculating algebraic cycles by introducing constraint the current and the voltage parameters. Experimental studies for the fully illuminated and partially shaded SF-P672300 module have demonstrated that the maximum relative error of the developed Simulink model does not exceed 15 %. Experimental and theoretical current-voltage characteristics of the SF-P672300 module under full illumination and partial shading are presented. The presented Simulink model may be used both at the design stage and at the operation stage of photovoltaic power plants in order to simulate and analyze the factors that affect the operation of them.
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Zalizny, D. I. "Model of a Photovoltaic Cell for the MatLab/Simulink SimPowerSystems Library." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 62, no. 2 (2019): 135–45. http://dx.doi.org/10.21122/1029-7448-2019-62-2-135-145.
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A new Simulink model of a photovoltaic cell has been proposed. The model is focused on the use of a standard SimPowerSystems library with power engineering elements from the MatLab/Simulink software package. The model allows altering the values of solar irradiance, photovoltaic cell temperature and load resistance. The results of the model application are the calculated values of voltages and currents at the photovoltaic cell output. The Simulink model that has been developed implements the known dependence of the photovoltaic cell volt-ampere characteristic by using both standard MatLab/Simulink blocks and special electric SimPowerSystems library blocks. The model is characterized by the fact that the series and parallel resistance of the photovoltaic cell are made in the form of resistors from the SimPowerSystems library. The main calculation algorithm is implemented programmatically by using the “C” programming language. To increase the algorithm stability to algebraic cycles the restrictions parameters are introduced. A new technique of calculating the photovoltaic cell model parameters based on experimental data has been proposed. The technique includes the preparation of a system of equations with experimental values of the photovoltaic cell voltages and currents. Experimental tests have been carried out for the photovoltaic module OSP XTP 250 under different solar irradiance values. The tests showed that the relative error of the Simulink model that has been developed does not exceed 12 %. The Simulink model makes it possible to build photovoltaic modules and then to build schemes of photovoltaic power plants as a part of power supply systems. Due to the latter it is possible to simulate the electricity consumers’ work, weather conditions, and the presence of shadows or pollution on the surface of photovoltaic modules. Also, one can carry out a simulation of increasing failures in power plant photovoltaic modules, e.g. simulating of modules efficiency reducing because of their degradation, or simulating of modules series resistance increasing because of the photovoltaic cell internal contacts deterioration. The Simulink model that has been developed can be used both at the design stage and at the stage of photoelectric power plants operation.
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Shavelis, Rolands, and Kaspars Ozols. "Bluetooth Low Energy Wireless Sensor Network Library in MATLAB Simulink." Journal of Sensor and Actuator Networks 9, no. 3 (2020): 38. http://dx.doi.org/10.3390/jsan9030038.
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The paper describes the elements of the developed MATLAB Simulink library for building the models of Bluetooth Low Energy (BLE) wireless sensor networks to simulate the communication between BLE devices in the presence of interference and channel noise. Various parameters can be configured for the devices including their 2D positions to take into account the distances between them for calculating the attenuation coefficients of the transmitted signals. Two simulation examples are provided, one of which demonstrates the data exchange between one master device and one slave at high data packet transmission rate (2 kHz), while the other example shows the data exchange between one master and multiple slaves simultaneously, in which case the data packet transmission rate can be no larger than 133 Hz.
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Shabanpour, Amin, Sasan Gholami, and Ali Reza Seifi. "Comparative Studies of Different Switching Patterns for Direct and Indirect Space Vector Modulated Matrix Converter." Advances in Power Electronics 2012 (December 30, 2012): 1–8. http://dx.doi.org/10.1155/2012/852024.
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This paper presents a MATLAB/Simulink simulation of direct and indirect space vector modulation for matrix converter. Different switching patterns for both direct and indirect methods are simulated and compared. Three criteria are chosen to compare the performance of switching patterns: (1) total harmonic distortion (THD); (2) harmonic spectrum analysis of output voltages; and (3) number of switching in each switching period. Switching strategies are completely implemented using the power library in MATLAB/Simulink environment.
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Cibera, V., and D. Lavicka. "Investigation of the thermohydraulic systems in MATLAB & Simulink using developed library." EPJ Web of Conferences 45 (2013): 01056. http://dx.doi.org/10.1051/epjconf/20134501056.
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Novash, I. V., F. A. Romaniuk, Yu V. Rumiantsev, and V. Yu Rumiantsev. "MATLAB-SIMULINK BASED INFORMATION SUPPORT FOR DIGITAL OVERCURRENT PROTECTION TEST SETS." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 60, no. 4 (2017): 291–308. http://dx.doi.org/10.21122/1029-7448-2017-60-4-291-308.
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The implementation of information support for PC-based and hardware-software based sets for digital overcurrent protection devices and their models testing using MatLab-Simulink environment is considered. It is demonstrated that the mathematical modeling of a part of the power system – viz. of the generalized electric power object – could be based on rigid and flexible models. Rigid models implemented on the basis of mathematical description of electrical and magnetic circuits of a power system can be considered as a reference model for the simulation results that have been obtained with the aid of another simulation system to be compared with. It is proposed to implement flexible models for generalized electric power object in the MatLabSimulink environment that includes the SimPowerSystems component library targeted to power system modeling. The features of the parameters calculation of the SimPowerSystems component library blocks that the power system model is formed of are considered. Out of the Simulink standard blocks the models of a wye-connected current transformers were composed as well as the digital overcurrent protection, missing in the component library. A comparison of simulation results of one and the same generalized electric power object implemented in various PC-based software packages was undertaken. The divergence of simulation results did not exceed 3 %; the latter allows us to recommend the MatLab-Simulink environment for information support creation for hardware-software based sets for digital overcurrent protection devices testing. The structure of the hardware-software based set for digital overcurrent protection device testing using the Omicron CMC 356 has been suggested. Time to trip comparison between the real digital protection device МР 801 and the model with the parameters which are exactly match the parameters of the prototype device was carried out using the identical test inputs. The results of the tests demonstrated a close coincidence of results (the divergence of not more than 8 %), that confirms the possibility of using the suggested hardware-software based test set during the development and debugging of new digital relay protection devices.
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Johansson, Max, Arnaud Contet, Olof Erlandsson, et al. "The Electrochemical Commercial Vehicle (ECCV) Platform." Energies 17, no. 7 (2024): 1742. http://dx.doi.org/10.3390/en17071742.
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Several technological challenges delay the adoption of electrified powertrains in the heavy-duty transport sector. For fuel-cell hybrid electric trucks, key issues include slow cold start, reduced cooling power during high ambient temperatures, and uncertainties regarding durability. In addition, the engineers must handle the complexity of the system. In this article, a Matlab/Simulink library is introduced, which has been developed to aid engineers in the design and optimization of energy management systems and strategies of this complex system that consider mechanical, electrochemical, and thermal energy flows. The library is introduced through five example vehicle models, and through case studies that highlight the various kinds of analysis that can be performed using the provided models. All library code is open source, open for commercial use, and runs in Matlab/Simulink without any need for external libraries.
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Yang, Sam, and Juan C. Ordonez. "Development of Generic Superconducting Components Library in MATLAB/Simulink for Thermal-Hydraulic Analyses." IEEE Transactions on Applied Superconductivity 31, no. 5 (2021): 1–5. http://dx.doi.org/10.1109/tasc.2021.3069711.
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Chermitti, Ali, Omar Boukli-Hacene, and Samir Mouhadjer. "Design of a Library of Components for Autonomous Photovoltaic System under Matlab/Simulink." International Journal of Computer Applications 53, no. 14 (2012): 13–19. http://dx.doi.org/10.5120/8488-2434.
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Chermitti, A., O. Boukli-Hacene, A. Meghebbar, N. Bibitriki, and A. Kherous. "Design of a Library of Components for Autonomous Photovoltaic System under Matlab/Simulink." Physics Procedia 55 (2014): 199–206. http://dx.doi.org/10.1016/j.phpro.2014.07.029.
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Steinsland, Vegard, Lasse Hugo Sivertsen, Emil Cimpan, and Shujun Zhang. "A New Approach to Include Complex Grounding System in Lightning Transient Studies and EMI Evaluations." Energies 12, no. 16 (2019): 3142. http://dx.doi.org/10.3390/en12163142.
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A new approach to lightning transient studies including complex grounding grids is presented in this paper. The grounding system is modeled in Matlab/Simulink based on the transmission line theory. Using a bottom-up approach and considering the properties of the fundamental elements, a detailed view of measurement values will be presented and analyzed. The Matlab/Simulink grounding system models are interfaced for co-simulation with EMTP-RV trough acr:FMI 2.0. This modeling approach allows the use of the full component library and network design by EMTP-RV to evaluate and analyze the effects of the grounding system and transmission network simultaneously in Matlab/Simulink. The results present a simplified transmission system where a surge is injected, acr:CIGRE 1 kA 1.2/50, in far-end of a transmission line. When reaching a substation, the surge is injected into the grounding system through a surge arrester.
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Patil, Harshal Vilas. "Three-Phase Fault Analysis on Transmission Line in Matlab Simulink." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 5386–91. http://dx.doi.org/10.22214/ijraset.2021.36027.
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Now-a-days the demand of electricity or power areincreases day by day this results to transmits more power byIncreasing the transmission line capacity from one place to theother place. But during the transmission some faults areoccurred in the system, such as L-L fault (line to line), 1L-Gfault (single line to ground) and 2L-G fault (double line toground). These faults affect the power system equipmentswhich are connected to it. The main aim of this paper is tostudy or analysis of faults and also identifies the effect of thefault in transmission line along with bus system which isconnected to transmission line. Mainly the major faults in longtransmission lines is (L-G) single line to ground fault which areharmful to the electrical equipment. A proposed model intransmission line is simulated in MATLAB software to analysisand identified the faults. Fault block was taken from the sim-power system block library. The whole modeling andsimulation of different operating and different conditions offault on transmission line, their faults are L-G fault, 2L-Gfault, 3L-G fault and three line short circuit of the proposedwork is presented in this paper.
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V, Viswanatha, Ramachandra A. C, Berwyn Suhas, and Adithya T. "Solution for XOR Problem with Neural Networks Using Google Colab and MATLAB / Simulink." Saudi Journal of Engineering and Technology 8, no. 1 (2023): 16–28. http://dx.doi.org/10.36348/sjet.2023.v08i01.003.
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To find solution for XOR problem we are considering two widely used software that is being relied on by many software developers for their work. The first software is Google Colab tool which can be used to implement ANN programs by coding the neural network using python. This tool is reliable since it supports python language for its implementation. The other major reason is that we can use GPU and TPU processors for the computation process of the neural network. The major advantage of this is that for complex Neural Networks instead of using CPU present in the user’s system we can use those two processors through online mode without purchasing such processors for our computation. The next software that can be used for implementing ANN is Matlab Simulink. This software is used for highly calculative and computational tasks such as Control System, Deep Learning, Machine Learning, Digital Signal Processing and many more. Matlab is highly efficient and easy to code and use when compared to any other software. This is because Matlab stores data in the form of matrices and computes them in this fashion. Matlab in collaboration with Simulink can be used to manually model the Neural Network without the need of any code or knowledge of any coding language. Since Simulink is integrated with Matlab we can also code the Neural Network in Matlab and obtain its mathematically equivalent model in Simulink. Also, Matlab has a dedicated tool in its library to implement neural network called NN tool. Using this tool, we can directly add the data for input, desired output, or target. After inserting the required data, we can train the network with the given dataset and receive appropriate graph’s which will be helpful in analyzing the data. Once the Neural Network is trained, we can test the network through this tool and verify the obtained results.
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Musa, Baba Lawan, Alhaji Samaila Ya'u, Tijjani Ibrahim, and Chiroma Muhammad Aminu. "Performance analysis of nickel metal hydride (NiMH) rechargeable battery using Matlab/Simulink." Global Journal of Engineering and Technology Advances 3, no. 1 (2020): 001–9. https://doi.org/10.5281/zenodo.4467423.
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This research presents the performance analysis of Nickel Metal Hydride (NiMH) rechargeable battery using MATLAB/Simulink. Nickel Metal hydride (NiMH) batteries are used as hydrogen storage material with high hydrogen volumetric capacity and reversible hydrogen absorption/desorption reactions. The study helps contribute to the lingering research gap regarding the NiMH battery. Recent research works conducted on NiMH battery cover areas such as the battery capacity and its memory effect. This research work addresses the charge/discharge characteristics and the battery voltage. The methodology employs the use of a generic battery model which is modeled using the Simulink library materials. Simulation using nickel hydrogen battery model thus makes it possible to analyze the characteristics of chargeability and discharge ability. The result showed that the battery has a nominal voltage of 200 volt. The machine runs at 120 rad/s and the charge and discharge characteristics showed that the battery is least affected by its memory.
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Vereshchago, Yevhen, and Vitalii Kostiuchenko. "Modeling of welding arc power supply diagrams in Matlab / Simulink." Electrical Engineering and Power Engineering, no. 3 (September 30, 2021): 8–20. http://dx.doi.org/10.15588/1607-6761-2021-3-1.
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Purpose. Creation of virtual blocks and simulation laboratory stands for the study and comprehensive research of the dynamic properties of welding power supplies. Methodology. Review of literary sources on the subject, simulation modeling of electromagnetic processes in the MATLAB software environment, comparative analysis of obtained and available data. Findings. The comparative analysis of means of modeling of power sources of a welding arc is executed. One of the main parameters by which the environments were compared is functionality. Among the considered simulators, Simulink of the MATLAB software environment is the most effective one in the considered systems modeling. Using special features, its user can not only simulate, but also analyze the operation of the over time installation. Mathematical and functional models of welding arc power supplies were built using SimPowerSystems elements and blocks from the Simulink library with the involvement of the MATLAB system itself, which significantly expands the possibilities for such systems modeling. Mathematization of certain processes to some extent shows the level of reliability of the results and the degree of their scientific development. The developed models act as a laboratory, which allows you to set and explore any modes and characteristics. Numerical experiments and comparative analysis of numerical and field experiments are given. Experimental verification of the obtained results on specific examples showed the relevance of the problem and the correctness of its solution. Further research is related to the expansion of the range of simulated power sources of the electric arc, a comprehensive study of their dynamic properties and basic characteristics, experimental verification of the developed models, as well as comparative analysis and development of recommendations for model improvement. Originality. The method of circuit modeling of general-purpose electrical and electronic circuits was further developed by extending it to a new class of objects - the power supply system of electrical installations. Practical value. Construction of mathematical and functional models of complex systems with the involvement of MATLAB allows to take into account their main features, significantly expands the possibilities for modeling, study and research of power supplies. Based on the proposed approach, simulation laboratory stands of specific power supplies were developed and built, which allow to set and study any modes and characteristics.
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Sierociński, Damian, Bogumił Chiliński, Franciszek Gawiński, Amadeusz Radomski, and Piotr Przybyłowicz. "DynPy—Python Library for Mechanical and Electrical Engineering: An Assessment with Coupled Electro-Mechanical Direct Current Motor Model." Energies 18, no. 2 (2025): 332. https://doi.org/10.3390/en18020332.
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DynPy is an open-source library implemented in Python (version 3.10.12) programming language which aims to provide a versatile set of functionalities for mechanical and electrical engineers. It enables the user to model, solve, simulate, and report analysis of dynamic systems with the use of a single environment. The DynPy library comes with a predefined collection of ready-to-use mechanical and electrical systems. A proprietary approach to creating new systems by combining independent elements defined as classes, such as masses, springs, dampers, resistors, capacitors, inductors, and more, allows for the quick creation of new, or the modification of existing systems. In the paper examples for obtaining analytical and numerical solutions of the systems described with ordinary differential equations were presented. The assessment of solver accuracy was conducted utilising a coupled electro-mechanical model of a direct current motor, with MATLAB/Simulink (R2022b) used as a reference tool. The model was solved in DynPy with the hybrid analytical–numerical method and fully analytically, while in MATLAB/Simulink strictly numerical simulations were run. The comparison of the results obtained from both tools not only proved the credibility of the developed library but also showed its superiority in specific conditions.
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Spiridonov, V. A., A. M. Tkachenko, R. A. Slavnitskiy, and A. S. Biushkina. "Simulation Modeling of the Tilting Mechanism of the Main Trolley of the Turnaround Charging Crane." MATEC Web of Conferences 346 (2021): 03048. http://dx.doi.org/10.1051/matecconf/202134603048.
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this article contains kinematic and dynamic analysis of the tilting mechanism of the turnaround charging crane main trolley, conducted with the use of the Mathcad package. The mechanism is modeled by a flat link mechanism – a four-bar linkage. In the same time, the analysis of the mechanism is also conducted using the Matlab Simulink environment and the tools of Multibody, which is a Simulink library. These two models were then compared. In the study the work-energy theorem and Holonomic constraints equations were used.
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Iqteit, Nassim A., Khalid Yahya, Firas M. Makahleh, et al. "Simple Mathematical and Simulink Model of Stepper Motor." Energies 15, no. 17 (2022): 6159. http://dx.doi.org/10.3390/en15176159.
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This paper presents a simple mathematical and Simulink model of a two-phase hybrid stepper motor, where ignoring the permeance space harmonics of the hybrid stepper motor is regarded as the main physical assumption in this article. Moreover, the dq transformation method is adopted as the main mathematical approach for the derivation of the proposed model, where simple voltages, currents, and torque equations are obtained and used to build the proposed Simulink and circuit model of the stepper motor. The validity and the effectiveness of the proposed model are examined by comparing its results with the results collected from the Simulink model in the library of Matlab. The obtained simulation results showed that the proposed model achieved a high simplicity and high accuracy when compared with conventional models.
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Raianov, Timur A. "Mathematical modeling of a strain gauge measurement system in MATLAB SIMULINK program." Transportation Systems and Technology 6, no. 2 (2020): 85–93. http://dx.doi.org/10.17816/transsyst20206285-93.
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Background: In recent years, modern strain gauge systems for measuring, which are used in automobile, railway, aviation, and ship transport, as well as in the pulp, paper, and metallurgical industries, have become extremely popular. These metrological systems provide accurate measurement in difficult operating conditions. The most popular among sensors are strain gauges, they are increasingly used in various areas of marine operations and legal proceedings. They are the optimal solution in the field of torque measurement.
 Aim: The program creates a model of a strain gauge measurement system. Analysis of power output characteristics.
 Methods: The article describes the construction of a mathematical model of the strain gauge measurement system. The MATLAB SIMULINK library was used for simulation. The work is based on mathematical modeling and is aimed at creating a computer-based strain gauge model. The output characteristics are analyzed. The accuracy of the software model measurement was verified by checking the convergence of the actual and measured values.
 Results: A software model of the strain gauge force measurement system was created to create a real computer strain gauge measurement system. Output characteristics are obtained.
 Conclusions:
 
 A software model of the strain gauge measurement system is proposed;
 The output characteristics were studied and the measurement accuracy was checked.
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Shin, Dong-Cheol, and Dong-Myung Lee. "Development of Real-Time Implementation of a Wind Power Generation System with Modular Multilevel Converters for Hardware in the Loop Simulation Using MATLAB/Simulink." Electronics 9, no. 4 (2020): 606. http://dx.doi.org/10.3390/electronics9040606.
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In this study, we propose a wind power generation system model for operating modular multilevel converter (MMC) in a hardware-in-the-loop simulation (HILS) application. The application of the MMC is a system that connects wind power to a grid through high-voltage direct current (HVDC) in the form of back-to-back connected MMCs, whereas a HILS is a system used to test or develop hardware or a software algorithm with real time. A real-time operation model of the MMC is required to conduct a HILS experiment. Although some studies have introduced the HILS model of MMCs for grid connection using PSCAD/EMTDC, it is difficult to find a study in the literature on the model using Matlab/Simulink, which is widely used for power electronic simulation. Hence, in this paper, we propose a real-time implementation model employing a detailed equivalent model (DEM) using MATLAB/Simulink. The equivalent model of both wind power generation system and MMC are presented in this paper. In addition, we describe how to implement components such as a variable resistor that is not provided in the Simulink’s library. The feasibility of the proposed model is demonstrated with real-time operation of a wind power generation system.
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Geng, Peng, Ming Gao Ouyang, Jian Qiu Li, and Liang Fei Xu. "Embedded C Code Generation Platform for Electric Vehicle Controller." Advanced Materials Research 546-547 (July 2012): 778–83. http://dx.doi.org/10.4028/www.scientific.net/amr.546-547.778.
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This paper presents an automated C code generation platform for the development of electric vehicle controller, based on Matlab/Simulink Real-Time Workshop. By means of this method, it is possible to develop vehicle control algorithms and configure device drivers in graphic environment. Moreover, it can generate executable C code and download them into Vehicle Control Unit automatically. This technique reduces handwritten code errors, and shortens the R&D time and cost, compared with traditional method. Besides, this technology platform is applied to the development of electric vehicle controller for the first time, using a custom Simulink driver library for MPC5644A microcontroller.
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Doaa, M. Atia, and T. El-madany Hanaa. "VHDL Based Maximum Power Point Tracking of Photovoltaic Using Fuzzy Logic Control." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 6 (2017): 3454–66. https://doi.org/10.11591/ijece.v7i6.pp3454-3466.
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It is important to have an efficient maximum power point tracking (MPPT) technique to increase the photovoltaic (PV) generation system output efficiency. This paper presents a design of MPPT techniques for PV module to increase its efficiency. Perturb and Observe method (P&O), incremental conductance method (IC), and Fuzzy logic controller (FLC) techniques are designed to be used for MPPT. Also FLC is built using MATLAB/ SIMULINK and compared with the FLC toolbox existed in the MATLAB library. FLC does not need knowledge of the exact model of the system so it is easy to implement. A comparison between different techniques shows the effectiveness of the fuzzy logic controller techniques. Finally, the proposed FLC is built in very high speed integrated circuit description language (VHDL). The simulation results obtained with ISE Design Suite 14.6 software show a satisfactory performance with a good agreement compared to obtained values from MATLAB/SIMULINK. The good tracking efficiency and rapid response to environmental parameters changes are adopted by the simulation results.
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Arsinte, Radu, and Eugen Lupu. "Prototyping Industrial Vision Applications and Implementations on Multimedia Processors." Applied Mechanics and Materials 808 (November 2015): 321–26. http://dx.doi.org/10.4028/www.scientific.net/amm.808.321.
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The article presents a development system for industrial vision applications based on multimedia processors. For simulation of the algorithm and prototyping the application we can use either standard Matlab / Simulink environment or specialized environments such as Open eVision. The system components are presented with examples of application prototyping and implementation on standard platform Digital Video Development Platform DVDP6437 from Spectrum Digital, equipped with Texas Instruments TMS320DM6437. In the presented system we did experiments regarding the Rapid Prototyping concept in industrial vision application, starting from Embedded Target Library components from Matlab / Simulink. The experiments revealed that multimedia processors are usable both in video and still image processing and are possible to be considered an option in standard industrial vision applications: positioning, visual inspection. The paper contains also a brief study of the necessary components of a proposed embedded architecture, intended to be realized for evaluation of the technology in industrial environments.
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Kinahan, Sean P., Julie M. Liss, and Visar Berisha. "TorchDIVA: An extensible computational model of speech production built on an open-source machine learning library." PLOS ONE 18, no. 2 (2023): e0281306. http://dx.doi.org/10.1371/journal.pone.0281306.
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The DIVA model is a computational model of speech motor control that combines a simulation of the brain regions responsible for speech production with a model of the human vocal tract. The model is currently implemented in Matlab Simulink; however, this is less than ideal as most of the development in speech technology research is done in Python. This means there is a wealth of machine learning tools which are freely available in the Python ecosystem that cannot be easily integrated with DIVA. We present TorchDIVA, a full rebuild of DIVA in Python using PyTorch tensors. DIVA source code was directly translated from Matlab to Python, and built-in Simulink signal blocks were implemented from scratch. After implementation, the accuracy of each module was evaluated via systematic block-by-block validation. The TorchDIVA model is shown to produce outputs that closely match those of the original DIVA model, with a negligible difference between the two. We additionally present an example of the extensibility of TorchDIVA as a research platform. Speech quality enhancement in TorchDIVA is achieved through an integration with an existing PyTorch generative vocoder called DiffWave. A modified DiffWave mel-spectrum upsampler was trained on human speech waveforms and conditioned on the TorchDIVA speech production. The results indicate improved speech quality metrics in the DiffWave-enhanced output as compared to the baseline. This enhancement would have been difficult or impossible to accomplish in the original Matlab implementation. This proof-of-concept demonstrates the value TorchDIVA can bring to the research community. Researchers can download the new implementation at: https://github.com/skinahan/DIVA_PyTorch.
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Baghdadi, Mohamed, Elmostafa Elwarraki, Naoual Mijlad, and Imane Ait Ayad. "SIMSCAPE Electrical Modelling of the IGBT with Parameter Optimization Using Genetic Algorithm." Journal of Electrical and Computer Engineering 2021 (May 4, 2021): 1–11. http://dx.doi.org/10.1155/2021/6665384.
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The concept introduced by MathWorks in the Simscape product is the link representation between the SIMSCAPE library components that correspond to physical connections transmitting power. In this paper, a power insulated-gate bipolar transistor (IGBT) model using MATLAB graphical software is reproduced. An electrical IGBT behavior model using the Simscape Electronics library components is developed and analyzed. This model is parameterized using the constructor datasheet to ensure a good representation of the dynamic and static IGBT behaviors. An extraction and optimization studies of the IGBT model parameters using a stochastic algorithm implemented in Matlab are presented. The proposed method is based on the Genetic Algorithm (GA) to perfectly extract and optimize the model parameters using the mathematical model circuit equations and the provided datasheet characteristics. A simulation in the Matlab/Simulink environment and a comparison with the experimental results for an IGBT device example are carried out to demonstrate the proposed model accuracy.
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Veleba, Jan, and Tomáš Nestorovič. "On Steady-State Voltage Stability Analysis Performance in MATLAB Environment." International Journal of Energy 15 (November 21, 2021): 73–79. http://dx.doi.org/10.46300/91010.2021.15.11.
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Nowadays, electric power systems have been often operated close to their limits due to increased electric power consumptions, vast installments of renewable power sources and deliberated power market policies. This poses a serious threat to stable network operation and control. Therefore, voltage stability is currently one of key topics worldwide for preventing related black-out and islanding scenarios. In this paper, modelling and simulations of steady-state voltage stability problems in MATLAB environment are performed using author-developed computational tool implementing both conventional and more advanced numerical approaches. Their performance is compared with Simulink-based library Power System Analysis Toolbox (PSAT) in terms of solution accuracy, CPU time, and possible limitations. Their use for both real-time and off-line monitoring and assessment of system's voltage stability are also discussed.
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Simonazzi, Marco, Nicola Delmonte, Paolo Cova, and Roberto Menozzi. "Models for MATLAB Simulation of a University Campus Micro-Grid." Energies 16, no. 16 (2023): 5884. http://dx.doi.org/10.3390/en16165884.
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This work presents a library of microgrid (MG) component models integrated in a complete university campus MG model in the Simulink/MATLAB environment. The model allows simulations on widely varying time scales and evaluation of the electrical, economic, and environmental performance of the MG. The models include photovoltaic (PV) generation (with MPPT control), battery storage (including charge/discharge control), loads (campus buildings and outdoor lighting), electric vehicle charging stations, and interconnections. The campus MG model is shown to be useful for (i) week-long simulations throughout the year, to analyze seasonal differences; (ii) year-long simulations for the estimation of overall economic and environmental impacts; (iii) MG islanded-mode simulations. The model is an agile tool for planning the deployment and penetration of photovoltaic plants and battery storage, with consideration of economic and environmental (carbon footprint) aspects.
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Atia, Doaa M., and Hanaa T. El-madany. "VHDL Based Maximum Power Point Tracking of Photovoltaic Using Fuzzy Logic Control." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 6 (2017): 3454. http://dx.doi.org/10.11591/ijece.v7i6.pp3454-3466.
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It is important to have an efficient maximum power point tracking (MPPT) technique to increase the<em> </em>photovoltaic (PV) generation system output efficiency. This paper presents a design of MPPT techniques for<em> </em>PV module to increase its efficiency. Perturb and Observe method (P&amp;O), incremental conductance method (IC), and Fuzzy logic controller (FLC) techniques are designed to be used for MPPT. Also FLC is built using<em> </em>MATLAB/ SIMULINK and compared with the FLC toolbox existed in the MATLAB library. FLC does not<em> </em>need knowledge of the exact model of the system so it is easy to implement. A comparison between different<em> </em>techniques shows the effectiveness of the fuzzy logic controller techniques. Finally, the proposed FLC is<em> </em>built in very high speed integrated circuit description language (VHDL). The simulation results obtained with<em> </em>ISE Design Suite 14.6 software show a satisfactory performance with a good agreement compared to obtained values from MATLAB/SIMULINK. The good tracking efficiency and rapid response to environmental parameters changes are adopted by the simulation results.
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Yudachev, S. S., S. S. Sitnikov, P. A. Monakhov, and N. A. Gordienko. "Implementation of tracking system correction methods in the Simulink package from MATLAB CAD." Glavnyj mekhanik (Chief Mechanic), no. 3 (February 25, 2022): 178–86. http://dx.doi.org/10.33920/pro-2-2203-02.
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CNC equipment is flexible, versatile, and has high performance. The use of such equipment significantly changes the nature of production and makes it mobile, meeting the requirements for continuous improvement and updating of mechanical engineering products. However, CNC machines are quite complex, and their acquisition is associated with large financial costs, therefore, the problem of efficient use of CNC machines is a priority for most mechanical engineering enterprises and is inextricably linked with the need to write various programs. Variants of the implementation of sequential, parallel correction and feedback correction methods in the Simulink package from MATLAB CAD are proposed. When performing the work, customizable library blocks are used, which are available for students to access on the official website of the software manufacturer. Schemes for each correction method with a description of the included blocks are presented. The output of the results and the comparison of the obtained data is carried out using a software oscilloscope built into the package, which allows clearly understanding the difference between the schemes. A comparison is made on the example of various types of signals for the most objective assessment of the quality of signal correction by one method or another. The practical significance of the work is familiarization with the MATLAB CAD Simulink package and consideration of possible ways to implement these correction schemes, as well as availability of the same schemes for self-construction in this CAD. This work can be used not only for teaching students of higher educational institutions in the field of development, debugging and coding of electronic and radio-electronic devices in terms of describing the algorithm of their work, but also for organizing laboratory work on courses of disciplines related to this topic, as well as when creating and designing real devices in production. Familiarization and study of this programming language are conducted within the walls of one of the leading engineering universities of the Russian Federation, the Bauman Moscow State Technical University.
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Ochoa, Danny, Sergio Martinez, and Paul Arévalo. "Extended Simplified Electro-Mechanical Model of a Variable-Speed Wind Turbine for Grid Integration Studies: Emulation and Validation on a Microgrid Lab." Electronics 11, no. 23 (2022): 3945. http://dx.doi.org/10.3390/electronics11233945.
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The energy transition towards renewable energies is crucial for the sustainable development of a society based on hydrocarbons. The current level of penetration and growth of wind energy in electric power systems is evident and many researchers have presented new methods for simulating and representing the electrical and mechanical characteristics of variable-speed wind turbines. However, complete mathematical models developed and implemented, for example, in MATLAB/Simulink® software, require significant computational efforts that could make grid studies impractical when its scale tends to increase. To contribute to facing this issue, this paper proposes an extended simplified model for a variable-speed wind turbine that considers the dynamic behavior of its mechanical system and includes an approximate representation of the power electronic converter. This approach broadens the scope of studies related to grid frequency control and power quality (fast-frequency response, primary frequency control, and voltage control, among others), considerably reducing the computational burden. Several validations of the proposed simplified model are presented, including comparisons with a doubly fed induction generator-based wind turbine model (phasor type) from the MATLAB/Simulink® library, and laboratory experiments under controlled conditions. The results show a good fit of the proposed simplified model to the MATLAB/Simulink® model, with minimal delays about 3% of the wind turbine inertia constant. Moreover, with the proposal, the computational time is reduced by up to 80% compared to a detailed model. This time reduction is achieved without penalizing the numerical accuracy and the estimation quality of the real behavior of the variable-speed wind turbine.
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Siraev, Fanis, and Regina Khazieva. "INVESTIGATION OF A FREQUENCY-REGULATORY ELECTRIC DRIVE WITH ASYNCHRONOUS ELECTRIC MOTOR." Electrical and data processing facilities and systems 18, no. 2 (2022): 45–51. http://dx.doi.org/10.17122/1999-5458-2022-18-2-45-51.
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Relevance AC electric drive is widely used in industry, it reduces power consumption and provides high reliability. It has received its wide distribution due to its high technological characteristics and simplicity of design, which have a positive impact on the introduction into production and modernization. Modeling of the electric drive control system is carried out in order to regulate and improve technological parameters. The assembled model in the Matlab/Simulink program using the SimPowerSystem library allows you to study the efficiency of controlling the electric drive of the pump using a visual model before switching to real objects, thanks to smooth speed control in a wide range of revolutions. Aim of research In this paper, a study is made of a frequency-controlled pump electric drive. During the hours of minimum load of enterprises where this system is used, the load on the device will decrease, since the consumption will be much less. Under loads, the power consumed by the drive can be reduced by changing the motor speed. This is achieved in many ways, but the most relevant is the use of a frequency converter. The main task is computer simulation of a frequency-controlled electric pump drive and the study of simulation results. Research methods In this study, the following methods were used: the study of scientific literature, computer modeling performed in the Matlab/Simulink software package using the SimPowerSystem library. Results The authors carry out a study of a frequency-controlled electric drive of the pump, which implements a reduction in the rotation speed to reduce the power consumed by the electric drive during the hours of minimum load of enterprises. The computer model of the object under study was developed in the Matlab/Simulink software package, the scalar control of the electric drive was evaluated. As a result of the simulation, oscillograms were obtained, where the possibility of reducing power consumption by adjusting the engine speed is clearly visible.
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Malik, F. Elmzughi, and I. Dekam Elhadi. "Exergoeconomic and sensitivity analyses of a gas turbine power plant using MINI-REFPROP and MATLAB simulink." i-manager's Journal on Power Systems Engineering 10, no. 4 (2023): 1. http://dx.doi.org/10.26634/jps.10.4.19203.
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In this paper, exergy, exergoeconomic, and exergoenvironmental analysis of a gas turbine cycle and its optimization have been carried out by MINI-Reference Fluid Properties (MINI-REFPROP) and Matrix Laboratory (MATLAB) SIMULINK. The parametric study was carried out based on the Specific Exergy Costing approach. The mathematical models were developed and presented regarding mass, energy, and economy. The Excel and MATLAB LIBRARY TOOLS BOX are used to perform thermodynamic properties and research analyses. The analyses lead to valuable economic status benchmarks. The exergoeconomic factor, relative cost, total cost of energy loss, and energy destruction for the combustion chamber and work output were determined. The parametric study was conducted, considering the effects of the gas turbine inlet temperature, air compressor inlet temperature, and compressor pressure ratio. For the considered case study status, the combustion chamber in the plant revealed the highest amount of energy destruction (85%), leading to the recommendation that more attention be paid to boilers in terms of design, selection, operation, and maintenance, while the combustion chamber has a high improvement potential (91%).
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Gu, Chun Bo, Zhong Chu Wang, and Lin Liu. "Research of Direct Torque Control of Asynchronous Motor." Advanced Materials Research 986-987 (July 2014): 1112–16. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.1112.
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Direct torque control (DTC) as a new type of motor control strategy, make the control system has good dynamic regulation performance. In this paper, we use the theory of direct torque control to research the speed regulation system of asynchronous motor direct torque control principle and its main component. Use Matlab/Simulink library to build the simulation model of induction motor DTC complete simulation and results show that the direct torque control run time has good control effect in asynchronous motor.
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Viorel, Alina Cristina. "Modeling the base tests of monophase transformer." International Journal of Advanced Statistics and IT&C for Economics and Life Sciences 12, no. 2 (2022): 32–40. http://dx.doi.org/10.2478/ijasitels-2022-0005.
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Abstract The paper develops a model created in Simscape – SIMULINK to study the monophase transformer behaviour. The equivalent circuit topology of a typical transformer needs to implement a procedure to determine the values for equivalent circuit elements based on performance criteria. The preliminary tests need in study of behaviour ‘s transformers are open-circuit and short-circuit tests. The paper implements a model realised with Simscape block offered by MATLAB library used for modelling the transformer ‘behaviour described on laboratory tests.
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Behbahani-Nejad, M., and A. Bagheri. "The accuracy and efficiency of a MATLAB-Simulink library for transient flow simulation of gas pipelines and networks." Journal of Petroleum Science and Engineering 70, no. 3-4 (2010): 256–65. http://dx.doi.org/10.1016/j.petrol.2009.11.018.
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MELCESCU, Leonard-Marius. "DESFĂȘURAREA VIRTUALĂ A LUCRĂRILOR DE LABORATOR DE MAȘINI ELECTRICE ÎN MEDIUL DE CALCUL MATLAB -SIMULINK." "ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)" 2020, no. 1 (2021): 1–11. http://dx.doi.org/10.36801/apme.2020.1.12.
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"The paper presents the author's experience in supporting laboratory applications in the Electrical Machines course during the pandemic caused by the SARS-CoV-2 virus, when teaching hours were conducted online, like activities specific to the distance learning. The experiments in the laboratory works are simulated in the MATLAB-Simulink computing environment by using and adapting the existing transformer and electrical machine models in the SimPowerSystem library. The design of numerical applications was made so that the implementation of electrical diagrams is performed by students, given that they have no experience in numerical modeling of electrical machines. Several methods for obtaining the results from numerical experiments are presented, which allow to ensure a balance between the number of data specific to each experiment and the calculation effort required, so that the experiments can be performed in the time allotted to a laboratory work. Paper purpose: Description of practical teaching aspects related to the simulation classical tests of the electrical machines in MATLAB- Simulink, in order to virtualize the laboratory works and to adapt them to on-line distance learning. Elements of originality: 1. Developing models for adjustable circuit elements and instrumentation required for simulation testing of electrical machines in steady-state regime. 2. Development of the more accurate DC electric machines model that considers the magnetic circuit hysteresis. 3. Analysis of the methods of using the simulation schemes for obtaining in a reasonable time the data that allow the representation of the operating characteristics."
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Proß, Sabrina, and Bernhard Bachmann. "An Advanced Environment for Hybrid Modeling of Biological Systems Based on Modelica." Journal of Integrative Bioinformatics 8, no. 1 (2011): 1–34. http://dx.doi.org/10.1515/jib-2011-152.
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Summary Biological systems are often very complex so that an appropriate formalism is needed for modeling their behavior. Hybrid Petri Nets, consisting of time-discrete Petri Net elements as well as continuous ones, have proven to be ideal for this task. Therefore, a new Petri Net library was implemented based on the object-oriented modeling language Modelica which allows the modeling of discrete, stochastic and continuous Petri Net elements by differential, algebraic and discrete equations. An appropriate Modelica-tool performs the hybrid simulation with discrete events and the solution of continuous differential equations. A special sub-library contains so-called wrappers for specific reactions to simplify the modeling process.The Modelica-models can be connected to Simulink-models for parameter optimization, sensitivity analysis and stochastic simulation in Matlab.The present paper illustrates the implementation of the Petri Net component models, their usage within the modeling process and the coupling between the Modelica-tool Dymola and Matlab/Simulink. The application is demonstrated by modeling the metabolism of Chinese Hamster Ovary Cells.
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Voytenko, Volodymyr, and Maksym Solodchuk. "Software and hardware complex for experimental study of two-coordinate positioning system of auxiliary UAV video camera." Technical sciences and technologies, no. 4 (38) (December 30, 2024): 282–91. https://doi.org/10.25140/2411-5363-2024-4(38)-282-291.
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To solve the problem of fatigue of the UAV operator during long-term search and reconnaissance missions, a research hardware and software complex was created, in which the positioning of the auxiliary UAV video camera with a narrow field of view is carried out. Dynamixel Library for MATLAB and Simulink was used to organize the interaction of actuators with the virtual environment, which allows combining positioning and image analysis subsystems in a single virtual environment. The results of an experimental study of the 2DCAM virtual-physical system are given.
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Portnyagin, Nikolay N., and Maksim M. Golovin. "ACCOUNTING FOR THE INFLUENCE OF DYNAMIC MAGNETIZATION DELAY OF ELECTRICAL STEEL IN ELECTRIC DRIVE CONTROL SYSTEMS." Electrical and data processing facilities and systems 20, no. 4 (2024): 21–30. https://doi.org/10.17122/1999-5458-2024-20-4-21-30.
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Relevance The dynamic delay in the automation circuits of an adjustable electric drive plays an essential role. However, in the models of the MATLAB package extension library, only the dynamic delay of the electric magnetization circuit of the magnetic circuit is taken into account. The processes of magnetization and remagnetization of the magnetic circuit medium lead to additional types of delay in the occurrence of an electromagnetic moment. Aim of research In the MATLAB package, it is proposed to implement the standard block of the Simulink library by sequentially switching on the control circuit of the armature of the DC motor of the delay unit with the rotor braked. Research methods The model of the DC motor current control circuit is considered, the interface of the automatic adjustment function of the proportional integral regulator is shown, and graphs of transients are shown. Results It is shown that when the formation of a magnetic field vector is delayed, the parameters of the proportional-integral regulator adjustment service change significantly, which are necessary to optimize the control process.
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Saidani, Sihem, Mohamed Radhouan Hachicha, and Moez Ghariani. "A New Phase Current Profiling with FLC f or Torque Optimization of 12/8 SRM." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 5 (2016): 1948. http://dx.doi.org/10.11591/ijece.v6i5.11010.
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<p>The switched reluctance machine against its several merits such as simplicity, robustness, less cost manufacturing and large speed still suffers from its undesirable torque ripple and acoustic noise. Compared to different candidates of hybrid and electric vehicle engine, the frequency of use of SRM in traction drives is improved with the different optimizing torque oscillation solutions. Most of studies used the generic or specific model of switched reluctance machine in the Simulink library (6/4,8/6 and 10/8). Despite, a new non linear model simply implemented in Simulink tool usinga static finite element analysis a previous study is used in this work. Hence, a 12/8 non linear SRM drive system is simulated using MATLAB toolbox tested with an intelligent controller (FLC) in order to minimize the torque ripple of an oriented starter –alternator application of a hybrid vehicle.</p>
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Saidani, Sihem, Mohamed Radhouan Hachicha, and Moez Ghariani. "A New Phase Current Profiling with FLC f or Torque Optimization of 12/8 SRM." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 5 (2016): 1948. http://dx.doi.org/10.11591/ijece.v6i5.pp1948-1955.
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<p>The switched reluctance machine against its several merits such as simplicity, robustness, less cost manufacturing and large speed still suffers from its undesirable torque ripple and acoustic noise. Compared to different candidates of hybrid and electric vehicle engine, the frequency of use of SRM in traction drives is improved with the different optimizing torque oscillation solutions. Most of studies used the generic or specific model of switched reluctance machine in the Simulink library (6/4,8/6 and 10/8). Despite, a new non linear model simply implemented in Simulink tool usinga static finite element analysis a previous study is used in this work. Hence, a 12/8 non linear SRM drive system is simulated using MATLAB toolbox tested with an intelligent controller (FLC) in order to minimize the torque ripple of an oriented starter –alternator application of a hybrid vehicle.</p>
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Chiacchio, Aizpurua, Compagno, Khodayee, and D’Urso. "Modelling and Resolution of Dynamic Reliability Problems by the Coupling of Simulink and the Stochastic Hybrid Fault Tree Object Oriented (SHyFTOO) Library." Information 10, no. 9 (2019): 283. http://dx.doi.org/10.3390/info10090283.
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Dependability assessment is one of the most important activities for the analysis of complex systems. Classical analysis techniques of safety, risk, and dependability, like Fault Tree Analysis or Reliability Block Diagrams, are easy to implement, but they estimate inaccurate dependability results due to their simplified hypotheses that assume the components’ malfunctions to be independent from each other and from the system working conditions. Recent contributions within the umbrella of Dynamic Probabilistic Risk Assessment have shown the potential to improve the accuracy of classical dependability analysis methods. Among them, Stochastic Hybrid Fault Tree Automaton (SHyFTA) is a promising methodology because it can combine a Dynamic Fault Tree model with the physics-based deterministic model of a system process, and it can generate dependability metrics along with performance indicators of the physical variables. This paper presents the Stochastic Hybrid Fault Tree Object Oriented (SHyFTOO), a Matlab® software library for the modelling and the resolution of a SHyFTA model. One of the novel features discussed in this contribution is the ease of coupling with a Matlab® Simulink model that facilitates the design of complex system dynamics. To demonstrate the utilization of this software library and the augmented capability of generating further dependability indicators, three different case studies are discussed and solved with a thorough description for the implementation of the corresponding SHyFTA models.
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Serdyukova, E. V. "Principles of Transformation in an Integrated Energy System when Applying the Concept of an Energy Hub." Vestnik IzhGTU imeni M.T. Kalashnikova 24, no. 3 (2021): 88–96. http://dx.doi.org/10.22213/2413-1172-2021-3-88-96.
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The cost of electricity and heat for the population, enterprises and organizations in Russia has increased several times in recent years. An urgent issue for consumers was the search for opportunities to save money when paying for energy. The heating fee is about a quarter of the total amount of the utility bill. The tariff, the cost of one unit of energy (Gcal/m2) spent on heating a room, increases annually. Accordingly, the amount of expenses for public services in each individual family or organization also increases. The principles of transformation of various forms of energy in an integrated energy system based on the concept of an energy hub are considered. It is proposed to use the capabilities of the MATLAB/Simulink software. The MATLAB/Simulink software library does not contain complex elements with a structure with multiple inputs and multiple outputs. Complex models of energy hub blocks form a special additional library. These models implement such functions as energy storage, energy conversion and summation of various types of energy. There are two types of energy transformation elements presented in the article. An illustrative example is presented that shows the economic effect of converting electricity into heat energy at preferential tariffs during the night period. The calculation of the quantitative potential of electricity for conversion is performed. Studies have shown that a flexible combination of various energy carriers using conversion and storage technologies preserves the potential for various system improvements: the total cost of energy can be reduced, the reliability of the power system is increased, network overload can be reduced, transmission losses are reduced.
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Marlęga, Radosław, and Jerzy Tchórzewski. "Comparative study of the efficiency, effectiveness and robustness of the TGE S.A. Day-Ahead Market model and system." Studia Informatica. System and information technology 28, no. 1 (2023): 29–45. http://dx.doi.org/10.34739/si.2023.28.02.
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The article contains selected results of comparative research on the quality of the parametric model, corrected in selected situations with the use of ANN and the Day-Ahead Market system of TGE S.A. carried out in MATLAB and Simulink. The System Identification Toolbox library was used for identification tests and Simulink for simulation and comparative tests. The comparative studies used suchmeasures of model and system quality as: efficiency, effectiveness and robustness. Their waveforms as well as their average values and absolute errors and relative errors between the identification model or the identification-neural model and the system were obtained. The results of general tests were shown for the hours: 6:00, 12:00, 18:00 and 24:00 in 2019, and the detailed tests for 6:00. The sensitivity of the waveforms obtained in terms of model quality and the Day-Ahead Market system was also tested, depending on the assumed values of such parameters as e.g. electricity volume or volume-weighted average price of electricity.
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Zulkifli, Shamsul Aizam, Mohd Razali Tomari, Mohd Najib Hussin, et al. "Application of Robust Control on Arduino Microcontroller Testing in Power Electronics Converters." Applied Mechanics and Materials 785 (August 2015): 172–76. http://dx.doi.org/10.4028/www.scientific.net/amm.785.172.
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This paper presents the capability of Arduino for responding to the robust controller which has been applied to the 3 phase rectifier and 3 phase inverter. The interface between the converters and the Arduino has been established by using MATLAB-Simulink environment. This is the fastest interface due the Arduino library that is available in the MATLAB which can be used before downloading the program to the board. Two types of controllers have been tested which are, P-Resonant and Fuzzy-PI controller. The voltage or current feedback mechanism also has been applied between the converters with the Arduino input port in order for responding to the design controller for signal generating pattern. At the end, it shows that, the Arduino is capable to receive the signals from the converters, process the signals in the board and generating the signal out for controlling the converters.
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Supriyatin, Wahyu. "Ekstraksi Ciri Bentuk pada Citra Bergerak Menggunakan Teknik Batas Tepi." Komputasi: Jurnal Ilmiah Ilmu Komputer dan Matematika 19, no. 1 (2022): 1–8. http://dx.doi.org/10.33751/komputasi.v19i1.3725.
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Computer vision sebagai pengembangan dari pengolahan citra membutuhkan informasi yang sesuai. Citra dua dimensi atau tiga dimensi yang akan digunakan dalam proses pengolahan citra memerlukan perbaikan sehingga dapat menampilkan ciri atau informasi yang dibutuhkan. Ekstraksi ciri merupakan salah satu tahapan preprocessing citra. Ekstraksi ciri dapat berupa bentuk, warna atau tekstur. Penelitian ini membahas tentang ektraksi ciri bentuk menggunakan teknik batas (boundary-based). Ekstraksi ciri bentuk digunakan untuk mengenali bentuk objek dari citra tiga dimensi (video) yang digunakan. Teknik batas dalam penelitian ini menggunakan edge detection prewitt. Pengujian menggunakan tiga video sebagai objek yang diperoleh dari library Matlab. Pengujian dilakukan dengan tools Simulink Matlab. Hasil pengujian ekstraksi ciri bentuk dengan deteksi tepi prewitt berhasil menampilkan objek yang ada dalam video. Objek berhasil dikenali serta background yang ada dalam video juga berhasil terdeteksi. Prewitt menghasilkan tepi yang jelas dan halus pada objek, sehingga ekstraksi ciri bentuk yang dilakukan dapat mengenali objek seperti aslinya.
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Piętak, Andrzej, Maciej Mikulski, Marek Melzacki, and Kamil Czerwiński. "A Proposal Of Simulation Model Of A Wind-Steering System For Sailing Yachts, Based On Single-Stage Servo-Pendulum Coupled With Main Rudder." Polish Maritime Research 22, no. 2 (2015): 15–22. http://dx.doi.org/10.1515/pomr-2015-0013.
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Abstract The aim of this study was to investigate possible application of fast design prototyping methods for wind-steering systems used in offshore sailing yachts. The development of such methods would help to speed up the construction work and reduce the scope of necessary experimental research, prior to implementation of the system. In the present work, based on an analysis of existing designs of windvane systems, a preliminary selection of the system configuration has been undertaken, in terms of a compromise between efficiency, performance, and design complexity. Construction design of a single-stage, servo – pendulum system, has been developed by using the Autodesk Inventor design package. Next, based on the design data, a simulation model of the system, has been produced by using Matlab - Simulink software and SimMechanics library. The model was further verified in terms of kinematics mapping with the use of Matlab visualization tools.
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Barszcz, Tomasz, and Piotr Czop. "Estimation of feedwater heater parameters based on a grey-box approach." International Journal of Applied Mathematics and Computer Science 21, no. 4 (2011): 703–15. http://dx.doi.org/10.2478/v10006-011-0056-4.
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Estimation of feedwater heater parameters based on a grey-box approachThe first-principle modeling of a feedwater heater operating in a coal-fired power unit is presented, along with a theoretical discussion concerning its structural simplifications, parameter estimation, and dynamical validation. The model is a part of the component library of modeling environments, called the Virtual Power Plant (VPP). The main purpose of the VPP is simulation of power generation installations intended for early warning diagnostic applications. The model was developed in the Matlab/Simulink package. There are two common problems associated with the modeling of dynamic systems. If an analytical model is chosen, it is very costly to determine all model parameters and that often prevents this approach from being used. If a data model is chosen, one does not have a clear interpretation of the model parameters. The paper uses the so-called grey-box approach, which combines first-principle and data-driven models. The model is represented by nonlinear state-space equations with geometrical and physical parameters deduced from the available documentation of a feedwater heater, as well as adjustable phenomenological parameters (i.e., heat transfer coefficients) that are estimated from measurement data. The paper presents the background of the method, its implementation in the Matlab/Simulink environment, the results of parameter estimation, and a discussion concerning the accuracy of the method.