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Journal articles on the topic 'Maximum value generator'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Rusilawati, Rusilawati, Irrine Budi Sulistiawati, and Naoto Yorino. "Determination of Generator Capability Curve using Modified-Single Machine to Infinite Bus (M-SMIB) System Approach." E3S Web of Conferences 188 (2020): 00022. http://dx.doi.org/10.1051/e3sconf/202018800022.

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The capability curve for each generator unit is usually provided by the generator manufacturer. But in practice, the generator can reach its maximum generation limit before reaching the maximum limit on the generator capability curve provided by the generator manufacturer. This might occur because of the load location is far from the generator or the varying of the loading value so that the maximum generation limit is smaller than the value given on the generator capability curve of the manufacturer. In this paper, the generator capability curve is determined using the Modified Single Machine

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2

Demeianto, Bobby, Riki Peri Ramadani, Iskandar Musa, and Yuniar Endri Priharanto. "ANALISA PEMBEBANAN PADA GENERATOR LISTRIK KAPAL PENANGKAP IKAN STUDI KASUS PADA KM. MARADONA." Aurelia Journal 2, no. 1 (2020): 63. http://dx.doi.org/10.15578/aj.v2i1.9425.

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Efficiency value is a measure that can inform us that a machine that operates can be said to be efficient or not. This study aims to find the efficiency value of the electric generator on the fishing vessel KM. Maradona. In addition, this study also aims to find the average percentage value of electric current on each phase of the generator and also to find the average value of the percentage imbalance of load sharing in three-phase electrical installations in KM. Maradona. From the calculation, it is found that the percentage of imbalance of three-phase electrical installations KM. Maradona w

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3

Haripuddin, Haripuddin, Muhammad Irfan, and Iwan Suhardi. "ANALYSIS OF THERMOELECTRIC POTENTIAL SP1848-27145 SA AS A POWER PLANT WITH UTILIZING THE HEAT ENERGY OF COMBUSTION." Journal of Electrical Engineering and Informatics 1, no. 1 (2023): 16–25. http://dx.doi.org/10.59562/jeeni.v1i1.419.

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This research is experimental and aims to determine the characteristics of the SP1848-27145SA generator thermoelectric module in the form of power generated and its performance as a power plant by utilizing heat energy from a combustion furnace. The method used in testing the thermoelectric characteristics of the generator is a direct experimental method by measuring the output voltage, current, hot side, and cold side of the thermoelectric and the power generated by the module attached to the combustion furnace. Thermoelectric testing of the SP1848-27145 SA generator as a power plant by utili

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4

Djalal, Muhammad Ruswandi, and Faisal Faisal. "Studi Kestabilan Generator Sistem Sulselrabar (Stability Study of Sulselrabar System Generator)." JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA) 3, no. 1 (2019): 82. http://dx.doi.org/10.21070/jeee-u.v3i1.2067.

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In the standard operating system, the input parameters such as changes in the mechanical torque of the turbine and changes in the field voltage of the amplifier from the exciter need to be considered. Some studies that can be done include the study of the dynamic stability of synchronous generators when dealing with small changes that occur using the eigenvalue approach which is the roots of the characteristic equations of the system state space equation. The eigenvalue can show information on system stability and is related to the response of time to changes in the system. The system used is

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5

Toriki, Mohammad Berel, Muhammad Khamim Asy’ari, and Ali Musyafa’. "Enhanced Performance of PMSG in WECS Using MPPT - Fuzzy Sliding Mode Control." Journal Européen des Systèmes Automatisés 54, no. 1 (2021): 85–96. http://dx.doi.org/10.18280/jesa.540110.

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The wind turbine is a tool used to convert wind energy into electrical energy. This research applies the maximum power point tracking (MPPT) algorithm combined with the fuzzy sliding mode control (FSMC) to produce maximum power in the wind turbine. Addition of fuzzy logic algorithm to sliding mode control to reduce the chattering phenomenon caused by the high switching frequency of the MOSFET in the boost converter. The permanent magnet synchronous generator (PMSG) type of generator with a capacity of 600 watts is used to convert the mechanical energy of the turbine into electrical energy. Tra

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Gavpisarn, Apisak, Suwit Jugsujinda, and Tosawat Seetawan. "Thermoelectric Generator of Ceramic Materials." Advanced Materials Research 770 (September 2013): 64–67. http://dx.doi.org/10.4028/www.scientific.net/amr.770.64.

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This research has an objective to develop and fabricate thermoelectric generator (TEG) from the p-Ca3Co4O9 and n-CaMnO3 ceramic materials. The p-n materials were cut and polished to the dimension of 4 × 4 × 4 mm3 and 71 couples. The relationship between temperature difference and electrical voltage, electrical current, electrical power and conversion efficiency were measured. The electricity and efficiency of TEG showed the maximum value of 1.6 V, 300 mA, 480 mW and 0.025 % at temperature difference of 60 K.

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7

Rusilawati, Irrine Budi Sulistiawati, Adi Soeprijanto, and Rony Seto Wibowo. "Determination of Generator Steady State Stability Limit for Multimachine System based on Network Losses Concept." MATEC Web of Conferences 164 (2018): 01041. http://dx.doi.org/10.1051/matecconf/201816401041.

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In the multimachine circumstances, it is difficult to analyze the steady state stability of each generator. In previous research, analysis of the steady state stability limit has been carried out but only look at the stability of the overall system. Therefore, to analyze the stability of each generator, the multimachine system must be changed into a Single Machine to Infinite Bus (SMIB) system by collecting all the loads into one central load in the infinite bus. The method to change from the multimachine system to SMIB system is presented in this paper. The multimachine system is converted in

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8

Mostaman, Nur Afiqah, Erwan Sulaiman, Mahyuzie Jenal, and Irfan Ali Somroo. "Initial Design of Free energy magnetic generator (FEMG)." IOP Conference Series: Earth and Environmental Science 1261, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1755-1315/1261/1/012005.

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Abstract Nowadays, it is essential for some areas that there would be implemented such ways for electricity cost reductions in the areas, equipment durability and minimal technical labour demand maintenance. There are many type of generator that can help to generate the electricity such as steam turbines, gasoline turbines, electrical generators, solar or wind turbines, internal combustion engines, and biogas engines. However, there are many drawbacks of using these generators. One of the major drawbacks of these non-renewable generators are the released of hazardous exhausts into the environm

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9

Daniilidou, Athina, Avrilia Konguetsof, Georgios Souliotis, and Basil Papadopoulos. "Generator of Fuzzy Implications." Algorithms 16, no. 12 (2023): 569. http://dx.doi.org/10.3390/a16120569.

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In this research paper, a generator of fuzzy methods based on theorems and axioms of fuzzy logic is derived, analyzed and applied. The family presented generates fuzzy implications according to the value of a selected parameter. The obtained fuzzy implications should satisfy a number of axioms, and the conditions of satisfying the maximum number of axioms are denoted. New theorems are stated and proven based on the rule that the fuzzy function of fuzzy implication, which is strong, leads to fuzzy negation. In this work, the data taken were fuzzified for the application of the new formulae. The

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10

Fujieda, Shun, Naoki Gorai, Toru Kawamata, Rayko Simura, Tsuguo Fukuda, and Shigeru Suzuki. "Performance of Vibration Power Generators Using Single Crystal and Polycrystal Magnetic Cores of Fe–Ga Alloys." Materials Science Forum 1016 (January 2021): 453–57. http://dx.doi.org/10.4028/www.scientific.net/msf.1016.453.

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The performance of a vibration power generator using a single crystal core of Fe–Ga alloy was compared with that of a generator using a Fe–Ga alloy polycrystal core with a similar Ga concentration. When the generator using the polycrystal core was forcibly vibrated by 1-G acceleration, the vibration frequency dependence of the open-circuit voltage showed a peak with a maximum value of about 0.14 V at the first resonance frequency due to the inverse magnetostrictive effect. On the other hand, the generator using a single crystal core with a <100> direction parallel to the external stress

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11

Lee, Robin, and Young Ho Nam. "A Design and Implementation of MCC Test Cases Generator using Binary Numbers." Korean Institute of Smart Media 13, no. 8 (2024): 9–15. http://dx.doi.org/10.30693/smj.2024.13.8.9.

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Software testing is essential in the software development process. Modified Condition / Decision Coverage (MC/DC) is a test case derivation technique that enhances the stability and reliability of software by effectively verifying complex conditions and decision structures. We propose the MCC Test Cases (MTC) generator in this study. This generator generates Multiple Condition Coverage (MCC) test cases using binary numbers to confirm the maximum coverage value of MC/DC testing. The proposed MTC generator utilizes some conditions from the Traffic Alert and Collision Avoidance System (TCAS)-II s

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12

Gromov, Victor, Vladimir Kuznetsov, Sergey Konovalov, et al. "Estimation of Current Amplitude Pulse." Advanced Materials Research 1013 (October 2014): 166–69. http://dx.doi.org/10.4028/www.scientific.net/amr.1013.166.

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Method of estimation of current amplitude (~10 kA) pulses constructed by powerful current pulse generator is suggested. It bases on the solution of differential equation current and voltage change on capacitor. The final formula consists of maximum value of capacitor charge, maximum negative voltage value, pulse duration and capacitor value.

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13

Gavpisarn, Apisak, and Tatiya Gavpisarn. "Thermoelectric Power Generator Module of Ceramic Materials." Advanced Materials Research 979 (June 2014): 363–65. http://dx.doi.org/10.4028/www.scientific.net/amr.979.363.

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Research has an objective to develop and fabricate thermoelectric generator module (TEGM) from the p-Ca3Co4O9 and n-CaMnO3 ceramic materials.The p-n materials were cut and polished to the dimension of 2 × 2 × 2 mm3 and 42 couples.The relationship between temperature difference and electrical voltage, electrical current, electrical power and conversion efficiency were measured. The electricity and efficiency of TEGM showed the maximum value of 5 V, 4.5 mA, 22.5 mW and 0.03 % at temperature difference of 100 K.

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14

Cheng, Ruo Fa, and Li Hu Chen. "Maximum Wind Power Tracking Control Based on PID and Feedback Linearization." Advanced Materials Research 1055 (November 2014): 358–62. http://dx.doi.org/10.4028/www.scientific.net/amr.1055.358.

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Based on the mathematical model of permanent magnet synchronous generator, the paper discussed the effect of the simplifying torque coefficient equation on direct-drive permanent magnet synchronous wind power generator. On the basis of feedback linearization principle, designed a PID and feedback linearization compound controller in this paper, and validated under varying wind speed, power coefficient remains at a constant value, which reached the maximum wind power capture purposes. Using MATLAB/simulink tool to build direct-drive permanent magnet synchronous wind power system simulation mode

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15

Sifi, Ibtissem, Nassera Ghellai, Younes Menni, and Houari Ameur. "Investigation of the efficiency of a thermoelectric generator." Journal of Applied Energies 1, no. 1 (2022): 11–19. https://doi.org/10.57137/jae.v1i1.8.

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Since the beginning of the 1990s, a renewed interest for the thermoelectric appeared, due in particular to the emergence of environmental concerns regarding the gases used in refrigeration and emissions of greenhouse gases as well as the willingness to develop alternative sources of energy. The generation of current by thermoelectric effect appears as an interesting source to relieve the problems existing energy, capitalizing on the transformation of the enormous quantities of heat lost identified for example, by cars, to useful energy. The objective of the present analysis is the study and mo

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16

Röder, Julian, Georg Jacobs, Dennis Bosse, Fabian Herzog, and Lukas Graf. "Investigation of a converter fault for a DFIG wind turbine and analysis of the resulting gearbox component loads." Journal of Physics: Conference Series 2257, no. 1 (2022): 012013. http://dx.doi.org/10.1088/1742-6596/2257/1/012013.

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Abstract Doubly fed induction generators are widely used in wind turbines in the field. The main advantage is the significantly lower cost of the partial scale power converter compared to the full scale power converter. Converter faults in wind turbines lead to significant generator torque excitations that lead to dynamic loads in the drivetrain. Dynamic loads and changing rotational speeds can lead to gearbox damages. The generator torque excitations have the highest influence on the high speed shaft torque due to the coupling to the generator. Gearbox damages occur mainly on the components o

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17

Grebenikov, Viktor, Rostyslav Gamaliia, and Vladimir Popkov. "Permanent magnet generator with axial magnetic flow for wind plants." Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, no. 1 (5) (May 28, 2021): 26–32. http://dx.doi.org/10.20998/2079-3944.2021.1.05.

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The results of numerical and experimental studies of an electric generator with permanent magnets and axial magnetic flux for low-power wind turbines are presented. In order for wind turbines to successfully compete with sources of autonomous power supply based on solar energy, it is necessary to reduce the specific cost of electric generators. One of the possible ways to reduce the cost of a wind turbine is to replace a quiet-running multi-pole generator with a high-speed one, which is paired with a magnetic step-up gear. In this case, the electric generator can be designed for rotation frequ

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18

Li, Yanzhe, Shixue Wang, Yunchi Fu, Yulong Zhao, and Like Yue. "Effect of core flow heat transfer enhancement on power generation characteristics of thermoelectric generators with different performances." Thermal Science, no. 00 (2021): 184. http://dx.doi.org/10.2298/tsci210309184l.

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In this study, the effect of enhancing the core flow heat transfer with metal foam on the performance of thermoelectric generators with different power generation characteristics is studied experimentally. Filling the core flow area of the gas channel in a thermoelectric generator with metal foam can greatly improve the heat transfer capacity of the gas channel with a small pressure loss, thereby improving the power generation efficiency. The results show that, first, the heat transfer enhancement achieved by partially filling the core area of the gas channel with metal foam can significantly

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19

Zhang, Xinyue. "Function Generator Based on Circuit Simulation Method." Highlights in Science, Engineering and Technology 46 (April 25, 2023): 142–46. http://dx.doi.org/10.54097/hset.v46i.7695.

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The function generator has a wide range of applications, mainly used in various production testing and scientific and technological fields such as chemical industry, communication engineering, industrial control, military, aerospace and so on. The function calculator based on the circuit simulation method can be quickly adjusted according to the output frequency, amplitude, and phase under the premise of ensuring accuracy. This article uses Falstad for circuit simulation and TinkerCad for circuit modeling. From the circuit scheme selection, analysis, optimization and other links, all use elect

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20

Ikhtiander and Soekirno Santoso. "Design of PLC Integrated Process Simulation Software for Steam Generator Using Matlab Simulink." E3S Web of Conferences 43 (2018): 01012. http://dx.doi.org/10.1051/e3sconf/20184301012.

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This paper describes the work done in order to make Matlab Simulink based steam generator simulator in the simulation of a steam generator. The steam generator under this research is operated with the steam quality of 72%, O2 content is 1.2%, designed steam volume flow is 3600 barrel per day at a maximum and designed fuel gas volume flow is 1300 Thousand Standard Cubic Feet (MSCF) per day at a maximum. The simulator program of the steam generator is separated into individual components consisting of Burner, Radiant, Convection, Exhaust Stack, Feedwater Pump Discharge and Steam Discharge. Withi

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21

Sangwaranatee, Narong. "The Study of Cook-Stove Thermoelectric Generator Power." Advanced Materials Research 979 (June 2014): 421–25. http://dx.doi.org/10.4028/www.scientific.net/amr.979.421.

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This research studies the alternative way of electricity generating from the waste heat of economy oven by using 4 modules of thermoelectric modules. The hot side of thermoelectric module is attached to the heat plate while the cold side is installed on the rectangular, plate-fin heat exchanger. Variety of system adjustments were used during this study in terms of finding the maximum electric power rate. Adjusting the heating value and the electrical resistance to the thermoelectric was the procedure in this study. From the research, we found out that at the temperature of 200°C on the heat pa

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22

Ugaz Peña, José Carlos, Christian Luis Medina Rodríguez, and Gustavo O. Guarniz Avalos. "Study of a New Wave Energy Converter with Perturb and Observe Maximum Power Point Tracking Method." Sustainability 15, no. 13 (2023): 10447. http://dx.doi.org/10.3390/su151310447.

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Ocean waves contain the highest energy density among renewable energy sources. However, harnessing the energy from ocean waves represents a challenge because wave energy converters (WECs) must be designed to have great survivability and efficiency. The power production challenge of any WEC depends on the power take-off (PTO) system efficiency. Maximum power point tracking (MPPT) algorithms have been widely applied in renewable energy from photovoltaic and wind sources, and have subsequently been adapted to wave energy converters (WECs). Energy extraction is optimized by applying MPPT, resultin

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Wu, Tao, Ning Jun Fan, and Yan Xuan Wu. "Analysis of Magnetic Field for Micro Axial-Flux Electromagnetic Generator." Key Engineering Materials 562-565 (July 2013): 431–35. http://dx.doi.org/10.4028/www.scientific.net/kem.562-565.431.

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This paper reports on the magnetic field distribution and magnetic circuit calculating method of micro generator. A micro axial-flux electromagnetic generator is designed as size of Φ6mm×3mm. Traditional magnetic circuit analysis methods are used to retrieve the air-gap magnetic density on no-load micro generator in operation. FEA is done for the micro generator model using magnetic field numerical simulation software. The main parameters of no-load magnetic field and the waveform of induced EMF are obtained. Comparing the results obtained from the magnetic circuit analysis and numerical simul

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Reis, Márcio Rodrigues da Cunha, Wanderson Rainer Hilário De Araújo, and Wesley Pacheco Calixto. "Efficiency Improvement of Switched Reluctance Generator Using Optimization Techniques." Transactions on Environment and Electrical Engineering 2, no. 1 (2017): 74. http://dx.doi.org/10.22149/teee.v2i1.91.

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This article introduces the switched reluctance machine operating as a generator. This kind of electrical machine delivers CC power at the output and the energy generated can be controlled through several variables. In this work, the switching angles of the machine's power converter are optimized using deterministic and heuristic techniques so that the output power is kept constant via PI controller while guaranteeing maximum value for machine performance, even for different excitation values and mechanical power on the shaft.

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Chudakov, V. M., S. V. Shatik, and B. L. Zhuikov. "Effect of strontium and calcium admixtures on productivity of <sup>82</sup>Sr/<sup>82</sup>Rb medical generator." Радиохимия 65, no. 5 (2023): 447–57. http://dx.doi.org/10.31857/s0033831123050076.

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The 82Sr/82Rb generator is used to produce a medical radiopharmaceutical rubidium-82 chloride in saline solution for PET investigation. In this work, we studied the effect of the amount of stable strontium and calcium delivered to the sorbent (hydrated tin dioxide), on the maximum volume of radiopharmaceutical solution that can be obtained from the generator. Sr and Ca may be delivered to the sorbent from the initial solution of strontium-82 or from the eluent (0.9% NaCl) during medical application of the generator. It is shown that this volume depends on the value CSr + 0.11CCa, where CSr and

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Gunawan, Chandra, Taufiq Bin Nur, and Basyaruddin Ismail Harahap. "Performance Analysis of a Diesel Generator Using Dexlite Mixed Fuel with Bio-Oil Produced from Coffee Grounds Pyrolysis." Key Engineering Materials 1001 (December 18, 2024): 135–41. https://doi.org/10.4028/p-8gjryo.

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Coffee grounds are an abundant biomass rarely used and often thrown away for nothing. On the other hand, pyrolysis is an alternative technology for utilizing biomass such as coffee grounds into biochar, syngas, and bio-oil. The bio-oil resulting from pyrolysis can then be mixed with dexlite in a 1:1 ratio, which is then called B50. This paper aims to analyze the performance of a Diesel generator driven by a motor fueled by Dexlite (a Diesel fuel variant that has a minimum CN of 51 and contains a maximum of 1200 ppm sulfur) and a mixture of bio-oil resulting from the pyrolysis of coffee grounds

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Wang, Gui Tang, Zhi Wen Feng, Zheng Li, Jing Yao Li, and Wen Ming Hu. "Application of Order Analysis in the Analysis of Noise in Automobile Alternator." Applied Mechanics and Materials 467 (December 2013): 488–91. http://dx.doi.org/10.4028/www.scientific.net/amm.467.488.

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With the increasing request of the comfort, reduce the vibration and noise of automobile AC generator as the industry wide concern. In this paper, based on a type of vehicle alternator speed section of excessive noise problems, using order analysis method on noise generator is analyzed, the main harmonic component generator noise for 36 harmonic components, and determine the maximum value of the resonance speed noise in 1800rpm, 2400rpm, 3400rpm near the motor load state. On this basis, puts forward the corresponding improvement measures to improve the motor, the motor noise value to the manuf

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Kuang, Hong Hai, Zheng Qiu Wu, and Sheng Qing Li. "MPPT of Doubly-Fed Induction Generator in Wind Farm Using SPSA Algorithm." Advanced Materials Research 608-609 (December 2012): 662–67. http://dx.doi.org/10.4028/www.scientific.net/amr.608-609.662.

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In order to make wind power generation system be free from outside interference, and make doubly-fed induction generator (DFIG) easily operate at maximum power point under variable wind speed, simultaneous perturbation stochastic approximation (SPSA) algorithm for tracking maximum power of wind power generation system is proposed in this paper. SPSA algorithm indirectly controls DFIG speed through adjusting duty cycle of power converter, makes system operate at maximum power point under any wind speed, thus the maximum power output is transmitted to the load. SPSA algorithm not only does not n

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Nikonov, A. M., K. V. Vavilin, I. I. Zadiriev, S. A. Dvinin, and E. A. Kralkina. "Frequency Dependence of the Parameters of the Inductive RF Discharge Located in the Low-Value Magnetic Field." Физика плазмы 50, no. 1 (2024): 61–73. http://dx.doi.org/10.31857/s0367292124010066.

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In this work, we carried out studies of the properties of an inductive RF discharge placed in a magnetic field with an induction of less than 70 G at frequencies of 2, 4 and 13.56 MHz. Experiments have shown that when operating at frequencies of 2 and 4 MHz at low powers of the RF generator, the range of existence of the discharge is limited by large magnetic fields. The efficiency of RF power input η non-monotonically depends on the magnitude of the magnetic field. The position of the main maximum η shifts to the region of higher B with increasing frequency, power of the RF generator and argo

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Hidayat, M. Reza, and Denasti Fajar Sukmawan. "Analisis Penurunan Daya Pada Sistem Propulsi Lokomotif Transmisi Diesel Elektrik CC 203 Di Depo Lokomotif." SUTET 10, no. 2 (2020): 79–87. http://dx.doi.org/10.33322/sutet.v10i2.1296.

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Depo Lokomotif is a work unit that is responsible for locomotive reliability in running the railroad transportation operational business. According to internal monthly report data from February 2019 to February 2020, there were 6 cases of weak locomotive power disruptions that caused operational delays. Analysis was carried out on the CC203 locomotive propulsion system in order to obtain the value of the power reduction in one case of disturbance by comparing the output value against the set standard value. Using mathematical calculation methods from the applicable equations and processing the

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Sordo-Ward, Alvaro, Ivan Gabriel-Martín, Paola Bianucci, Giuseppe Mascaro, Enrique R. Vivoni, and Luis Garrote. "Stochastic Hybrid Event Based and Continuous Approach to Derive Flood Frequency Curve." Water 13, no. 14 (2021): 1931. http://dx.doi.org/10.3390/w13141931.

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This study proposes a methodology that combines the advantages of the event-based and continuous models, for the derivation of the maximum flow and maximum hydrograph volume frequency curves, by combining a stochastic continuous weather generator (the advanced weather generator, abbreviated as AWE-GEN) with a fully distributed physically based hydrological model (the TIN-based real-time integrated basin simulator, abbreviated as tRIBS) that runs both event-based and continuous simulation. The methodology is applied to Peacheater Creek, a 64 km2 basin located in Oklahoma, United States. First,

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Guo, Wu, Jian Guo, and Fengjuan Miao. "Application of Improved Process Neural Network Based on the Fireworks Algorithm in the Temperature-Rise Predictions of a Large Generator Rotor." Applied Sciences 13, no. 5 (2023): 2943. http://dx.doi.org/10.3390/app13052943.

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Building an effective algorithm model for large key power equipment has very important research significance and application value. Aiming at the typical operating state characteristics of large generators and taking the temperature changes as the main research indicators, the improved fireworks algorithm was used to optimize the process neural network, and the key data characteristics were studied based on the machine experiment and actual operation data of a 300 MW generator so as to find the variation and development trends of the maximum temperature rise caused by negative-sequence current

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Masip Macía, Yunesky, Pablo Rodríguez Machuca, Angel Alexander Rodríguez Soto, and Roberto Carmona Campos. "Green Hydrogen Value Chain in the Sustainability for Port Operations: Case Study in the Region of Valparaiso, Chile." Sustainability 13, no. 24 (2021): 13681. http://dx.doi.org/10.3390/su132413681.

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The paper presents a complete value chain for the use of green hydrogen in a port facility. The main objective was to propose the sizing of the main components that make up green hydrogen to ensure the supply of 1 MWe in replacing the diesel generator. The energy demand required for the port was determined by establishing the leading small and large-scale conventional energy-consuming equipment. Hence, 60 kgH2 was required to ensure the power supply. The total electrical energy to produce all the hydrogen was generated from photovoltaic solar energy, considering three-generation scenarios (min

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Yang, Faming, Wenhai Huang, Guohua Shui, and Yukui Liu. "A Pseudo-Random Signal Generator for Offset Calibration Circuit." Journal of Physics: Conference Series 2356, no. 1 (2022): 012013. http://dx.doi.org/10.1088/1742-6596/2356/1/012013.

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A pseudo-random signal generator based on 0.5μm CMOS technology is presented, and it is applied for an auto-zero operational amplifier. The generator circuit includes a linear feedback shift register for generating pseudo-random sequences, and a multi-level counter module for counting the system clock pulses. A group of pseudo-random codes generated by the linear feedback shift register are as the initial value of the counter. When the counter reaches the maximum value, the output of the counter will control the output signal to flip. At the same time, a new group of the pseudo-random code wil

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Wang, Jiangbo, Ting Fu, Liangcai Zeng, Guang Chen, and Fue-sang Lien. "Numerical and Experimental Investigations of Micro Thermal Performance in a Tube with Delta Winglet Pairs." Micromachines 12, no. 7 (2021): 786. http://dx.doi.org/10.3390/mi12070786.

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In this research, a novel vortex generator (VG) is presented. The experimental and numerical investigations were carried out to study the micro thermal-hydraulic performance in a heated tube. The numerical results showed that the fluid in the core flow region and the near-wall region was fully mixed because of the longitudinal vortices created by the vortex generators. In addition, the experimental results showed that the heat transfer coefficient (h) decreased with the increasing pitch ratio (PR) value, while the friction coefficient exhibited the opposite trend. With the increasing ration an

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M. Atiyah, Mustafa, Ali Jafer Mahdi, and Kassim A. Al-Anbarri. "MAXIMUM POWER COEFFICIENT CONTROL OF A MICRO GRID-CONNECTED WIND ENERGY SYSTEM." Journal of Engineering and Sustainable Development 26, no. 2 (2022): 56–66. http://dx.doi.org/10.31272/jeasd.26.2.6.

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This paper proposed the integration of the wind energy system (WES) with the grid consists of a wind turbine, a permanent magnet synchronous generator (PMSG), a switch-mode rectifier (SMR) and a three-phase voltage source inverter (VSI). Optimal torque control (OTC) method is applied to the converter on the generator side for maximizing the power coefficient under the change in wind speeds. To synchronize the WES with the grid, another controller is applied to keep dc-bus voltage at constant value and to regulate active and reactive power transmitted into a grid. A system of WES connected into

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Nugroho, Herminarto, Muhammad Akram Saputra, and Muhammad Fadil Anwar. "Optimasi Daya Generator Angin Melalui Pitch Angle Control dengan Particle Swarm Optimization dan Genetic Algortihm." PETIR 16, no. 1 (2023): 100–108. http://dx.doi.org/10.33322/petir.v16i1.1704.

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In optimizing the power of the wind turbine generator (WTG) due to fluctuating wind speed, the pitch angle control is used on WTG. The pitch angle has a great influence towards the rotational speed change of the WTG. The pitch angle value is in the range of 0-90 degrees. The optimal value of the pitch angle can produce the maximum power output from the wind turbine generator. Because the pitch angle value changes with wind speed, the optimization method is carried out using Particle Swarm Optimization (PSO) method and Genetic Algorithm (GA) optimization method. By using these two methods optim

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Qing, Mengqi, Fei Tang, Fusuo Liu, Dichen Liu, Nianchun Du, and Benxi Hu. "An Analytical Method for Estimating the Maximum Penetration of DFIG Considering Frequency Stability." Sustainability 12, no. 23 (2020): 9850. http://dx.doi.org/10.3390/su12239850.

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With the increasing wind power in power systems and the wide application of frequency regulation technology, the accurate calculation of the limit wind power capacity in systems is critical to ensure the stability of the frequency and guide the planning of wind power sources. This paper proposes an analytical method for calculating the maximum wind generation penetration under the constraints of frequency regulation control and frequency stability taking doubly fed induction generator as an example. Firstly, the frequency-domain dynamic model of the doubly fed induction generator is establishe

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Hassan, Salmi, Badri Abdelmajid, Zegrari Mourad, Sahel Aicha, and Baghdad Abdenaceur. "PSO-backstepping controller of a grid connected DFIG based wind turbine." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 1 (2020): 856. http://dx.doi.org/10.11591/ijece.v10i1.pp856-867.

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The paper demonstrates the feasibility of an optimal backstepping controller for doubly fed induction generator based wind turbine (DFIG). The main purpose is the extract of maximum energy and the control of active and reactive power exchanged between the generator and electrical grid in presence of uncertainty. The maximum energy is obtained by applying an algorithm based on artificial bee colony approach. Particle swarm optimization is used to select optimal value of backstepping’s parameters. The simulation is carried out on 2.4 MW DFIG based wind turbine system. The optimized performance o

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Chenchevoi, V., Iu Zachepa, O. Chornyi, et al. "THERMAL MODEL OF THE "INDUCTION GENERATOR–INDUCTION MOTOR" SYSTEM WITH NON–SYMMETRY IN THE STATOR WINDINGS." Electromechanical and energy saving systems 2, no. 53 (2021): 47–55. http://dx.doi.org/10.30929/2072-2052.2021.2.54.47-55.

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Purpose. Development of the IG model for estimation of influence of variations of parameters of the generator on quality of process of self–excitation at definition of the basic and boundary operating modes and system of initial excitation at invariable parameters of the generator. Result. The article presents studies of the system "asynchronous generator-asynchronous motor" with parametric asymmetry to determine the quality of generated electricity in load modes of operation on a mathematical model. The assessment of the thermal state in steady-state conditions was carried out using an equiva

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Demin, A. V., and G. V. Demina. "Environmental characteristics of thermal utilization of waste with external and internal supply of thermal energy." Power engineering: research, equipment, technology 24, no. 6 (2023): 143–52. http://dx.doi.org/10.30724/1998-9903-2022-24-6-143-152.

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THE PURPOSE. Identification of optimal regimes for autothermal and allothermic methods of gasification of plant biomass in terms of energy parameters of generator gases, as well as determination of environmental indicators during subsequent combustion of generator gases to obtain thermal energy.METHODS. When modeling gasification processes, a nonstoichiometric model was used, based on the assumption that a chemically reacting multicomponent mixture is in a state of thermodynamic and chemical equilibrium, which corresponds to the minimum value of the isobaric-isothermal potential. When modeling

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Amori, Karima Ismail, and Rand Ahmed Adeeb. "Absorber Diameter Effect on the Thermal Performance of Solar Steam Generator." Journal of Engineering 22, no. 4 (2016): 127–46. http://dx.doi.org/10.31026/j.eng.2016.04.09.

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In this work, a convex lens concentrating solar collector is designed and manufactured locally by using 10 convex lenses (concentrator) of a diameter 10cm and one Copper absorber tube of a diameter 12.5mm and 1mm in thickness 1m length. Two axes manual Tracking system also constructed to track the sun continuously in two directions. The experiments are made on 17th of May 2015 in climatic conditions of Baghdad. The experimental data are fed to a computer program to solve the thermal performing equation, to find efficiency and actual useful energy. Then this data is used in numerical CFD softwa

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Wiyadi, Eri, and Lazuardi Umar. "PENGARUH HAMBATAN INTERNAL TERHADAP DAYA OUTPUT ELEMEN TERMOELEKTRIK GENERATOR TIPE 10W-4V-40s." Komunikasi Fisika Indonesia 15, no. 1 (2018): 67. http://dx.doi.org/10.31258/jkfi.15.1.67-70.

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Thermoelectric generator Type 10W-4V-40s powered by Seebeck effect by utilizing temperature difference in both sides of the element. The hot side (Th) of a TEG element is placed on a stand made of Aluminum-Dural material and given a heat source derived from a heater, on the cold side (Tc) TEG element installed heatsink to reduce heat energy through the cold side and keep the temperature low. The measurement of output power (PL) is done by variation of RL from 0 Ω to 20 Ω under temperature difference conditions (ΔT) varies with constant Tc at 30ºC, the result of the research indicates that the

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Chuaqui, H., E. Wyndham, C. Friedli, and M. Favre. "LLAMPÜDKEÑ: A high-current, low-impedance pulser employing an auxiliary exponential transmission line." Laser and Particle Beams 15, no. 2 (1997): 241–48. http://dx.doi.org/10.1017/s0263034600010569.

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The design and constructional aspects of a novel pulse power generator for use in dense plasma research presently under construction are presented. The generator consists of two Marx capacitor banks, each of 0.25 μF, 480 kV, and 28.8 kJ. Each Marx generator drives a water transmission line, in which the live electrode is the central conductor. The transmission lines consist of a constant impedance section followed by a multielectrode gas linegap followed by an exponential taper to the load section. The novel feature is the use of an auxiliary exponential line coupled at the load. This line con

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Musyafiq, Afrizal Abdi, Novita Asma Illahi, Purwiyanto, Vicky Prasetia, and Hera Susanti. "Optimization of Vertical Axis Darrieus Wind Turbine As Aerator Generator." Jurnal E-Komtek (Elektro-Komputer-Teknik) 7, no. 2 (2023): 311–20. http://dx.doi.org/10.37339/e-komtek.v7i2.1538.

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Research has focused on a wind turbine system with a vertical-axis Darrieus design with a capacity of 15 watts, serving as an aerator for aeration or adding air to water. The Darrieus turbine, made of aluminium with three corners and a modified NACA 0018 model optimized to work at low wind speeds of 2 m/s, effectively powers a 4-watt DC aerator. Generator voltage readings show a minimum value of 2 volts at a wind speed of 1 m/s and a maximum value of 12.8 volts at a wind speed of 6.2 m/s. The calculated power coefficient is 0.3. Charging the accumulator with a 12 volts/12 Ah takes 23 hours wit

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Salmi, Hassan, Abdelmajid Badri, Mourad Zegrari, Aicha Sahel, and Abdennaceur Baghdad. "PSO-Backstepping controller of a grid connected DFIG based wind turbine." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 1 (2020): 856–67. https://doi.org/10.11591/ijece.v10i1.pp856-867.

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Abstract:

The paper demonstrates the feasibility of an optimal backstepping controller for doubly fed induction generator based wind turbine (DFIG). The main purpose is the extract of maximum energy and the control of active and reactive power exchanged between the generator and electrical grid in presence of uncertainty. The maximum energy is obtained by applying an algorithm based on artificial bee colony approach. Particle swarm optimization is used to select optimal value of backstepping’s parameters. The simulation is carried out on 2.4 MW DFIG based wind turbine system. The optimized perform

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Marhatang, Marhatang, Herman Nawir, Muhammad Ruswandi Djalal, Maudini Maudini, and Muh Amar Syarifuddin. "Design of Wind Power Generator for Tambak Houses." Journal of Electrical Technology UMY 7, no. 1 (2023): 20–28. http://dx.doi.org/10.18196/jet.v7i1.17457.

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Wind Power Generation (WPG) requires specific wind conditions to generate electrical energy. Indonesia's wind potential enables the development of small-scale power plants. Innovations in windmill technology need to be developed to ensure maximum results in low wind speed conditions. This research proposes the design and implementation of WPG using a vertical axis to provide lighting for pond houses. The goal is to benefit pond workers in coastal areas that lack electricity from the National Electric Company. The manufacturing stages include design and testing. Based on the design results, the

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Thimmareddygari, Somesh Reddy, Ankit Sonthalia, and C. Ramesh Kumar. "Performance Analysis of Single Module Thermoelectric Generator." Advanced Materials Research 875-877 (February 2014): 1625–29. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.1625.

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The need of energy is increasing enormously day by day and presently it is being fulfilled mostly by depleting energy resources like coal and petroleum based fuels. This situation pushes mankind to search for novel green technologies which can convert efficiently even low grade heat energy into useful energy. Thermoelectric generator (TEG) promises to be clear technology to generate electricity. TEG uses temperature gradient between source and sink to generate electricity. In this study, performance of commercially available thermoelectric module was studied using a specially designed cross fl

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Airoboman, A. E., Mohammed A. S. Jibrin, J. O. Ademola, J. Oladokun, S. Ahmed, and M. O. Edu. "Efficiency Analysis on Small Sized Generators in Nigeria." Journal of Advances in Science and Engineering 2, no. 2 (2019): 37–44. http://dx.doi.org/10.37121/jase.v2i2.66.

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In this paper, efficiency analysis of small sized generators in Nigeria was considered. Experimental analyses were carried out on two (2) different samples of generators tagged “S” and “T” at different loading conditions (20%, 40%, 60% etc. of ratings) to ascertain the generators’ efficiencies as well as the maximum true power that could be drawn out from the generators. The experimental results are compared with the manufacturers ratings specified on the name plate of the generators. The results indicated an average efficiency of 44.9% and 55.7% for “T” and “S” respectively an indication that

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Xing, Yubing, Kechen Tang, Jiang Wang, et al. "High-Performance Wearable Bi2Te3-Based Thermoelectric Generator." Applied Sciences 13, no. 10 (2023): 5971. http://dx.doi.org/10.3390/app13105971.

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Wearable thermoelectric generators (w-TEGs) convert thermal energy into electrical energy to realize self-powering of intelligent electronic devices, thus reducing the burden of battery replacement and charging, and improving the usage time and efficiency of electronic devices. Through finite element simulation, this study successfully designed high-performance thermoelectric generator and made it into wearable thermoelectric module by adopting “rigid device—flexible connection” method. It was found that higher convective heat transfer coefficient (h) on cold-end leads to larger effective temp

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