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Journal articles on the topic 'Automatic voltage regulator'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

PUSHAN, KUMAR DATTA, and PATTNAIK BIRAJASHIS. "SIMULATION DESIGN OF AUTOMATIC VOLTAGE REGULATOR OVER UNAVAILABILITY OF ANALOG AUTOMATIC VOLTAGE REGULATOR." i-manager's Journal on Circuits and Systems 7, no. 2 (2019): 21. http://dx.doi.org/10.26634/jcir.7.2.16454.

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2

Hietpas, S. M., and M. Naden. "Automatic voltage regulator using an AC voltage-voltage converter." IEEE Transactions on Industry Applications 36, no. 1 (2000): 33–38. http://dx.doi.org/10.1109/28.821793.

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3

M., Ahmed. "Automatic Voltage Regulator based Fuzzy Logic." International Journal of Computer Applications 181, no. 36 (January 17, 2019): 29–32. http://dx.doi.org/10.5120/ijca2019918330.

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4

Sajeev, Neethu, Najeena K S, and Absal Nabi. "Automatic Voltage Regulator with Series Compensation." International Journal of Engineering Trends and Technology 30, no. 3 (December 25, 2015): 121–27. http://dx.doi.org/10.14445/22315381/ijett-v30p222.

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5

Finch, J. W., K. J. Zachariah, and M. Farsi. "Turbogenerator self-tuning automatic voltage regulator." IEEE Transactions on Energy Conversion 14, no. 3 (1999): 843–48. http://dx.doi.org/10.1109/60.790963.

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6

Wu, Jinn-Chang, Hurng-Liahng Jou, Kuen-Der Wu, and Shiue-Jung Jan. "Three-Arm AC Automatic Voltage Regulator." IEEE Transactions on Industrial Electronics 58, no. 2 (February 2011): 567–75. http://dx.doi.org/10.1109/tie.2010.2045994.

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7

GREGORY, K., and I. R. SMITH. "MATHEMATICAL MODELLING OF AN AUTOMATIC VOLTAGE REGULATOR." Journal of Circuits, Systems and Computers 06, no. 01 (February 1996): 65–72. http://dx.doi.org/10.1142/s0218126696000066.

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This letter describes the mathematical modelling of an automatic voltage regulator (avr) in a form which is compatible with models developed for many other items of electrical plant. The corresponding equations are suitable for numerical solution on a digital computer, and results are presented to illustrate the performance when the avr program is added to an existing generator program to produce an overall system model.

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8

Kwon, B. H., J. H. Youm, and J. H. Choi. "Automatic voltage regulator with fast dynamic speed." IEE Proceedings - Electric Power Applications 146, no. 2 (1999): 201. http://dx.doi.org/10.1049/ip-epa:19990303.

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9

Matsuda, Katsuhiro, Kazuhiro Horikoshi, Toshiyuki Seto, Osamu Iyama, and Hiromu Kobayashi. "Development of Automatic Voltage Regulator for Low Voltage Distribution Systems." IEEJ Transactions on Power and Energy 132, no. 5 (2012): 436–44. http://dx.doi.org/10.1541/ieejpes.132.436.

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10

Matsuda, Katsuhiro, Kazuhiro Horikoshi, Toshiyuki Seto, Osamu Iyama, and Hiromu Kobayashi. "Development of Automatic Voltage Regulator for Low-Voltage Distribution Systems." Electrical Engineering in Japan 188, no. 4 (June 10, 2014): 9–19. http://dx.doi.org/10.1002/eej.22438.

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11

Attia, Hussain. "Novel 9-Steps Automatic AC Voltage Regulator based on Two Step-down Transformers." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 2 (April 1, 2017): 576. http://dx.doi.org/10.11591/ijece.v7i2.pp576-583.

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<p class="IEEEAbtract">A novel design and simulation results of 9-steps automatic AC voltage regulator based on one step-down transformer is presented in this paper. Avoiding the problem of surge at the AC load during controlling jump steps is done through the proposed design. Accurate and smooth controlling function is achieved as well. Instead of the necessity of increasing the number of taps of the used multi tap transformer for wide controlling range of fluctuated AC supply voltage, the proposed designed adopts using only two step down transformers with 10 Vrms, and 30 Vrms secondary voltages respectively. Through the controlling of the proposed design of AV voltage regulator, the resultant load voltage is equal the AC supply voltage as well as the suitable voltage step which may one of the following voltages; +40V, +30V, +20V, +10V, 0V, -10V, -20V, -30V, -40V. The electronic design is done Multisim software while the electrical circuit connection of step down transformers and relays contacts that is made by using PSIM software for power circuit design.</p>

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12

Zong, Yong, Xia Xiao, and Rui Zhu. "The Test Investigation and Design Improvements of Voltage Regulator Performance." Applied Mechanics and Materials 701-702 (December 2014): 1181–86. http://dx.doi.org/10.4028/www.scientific.net/amm.701-702.1181.

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Voltage regulator is designed to automatically maintain the constant of regular voltage level. Every automotive IC has its own regulator module for analog and logic circuit power supply. The output load regulation and current consumption are directly related to the IC’s performance, or even the whole application module. The performance of regulator is not only related with the output parameters, but also the protection character. The over voltage protection feature guarantees the IC’s working environment within specific voltage input range. This article use one IDC’s (Intelligent Distribution Controller) regulator module to describe the design theory for regulator over voltage performance improvement. The test investigation and verification on ATE (Automatic Test Equipment) are demonstrated. The parameter of over voltage threshold is optimized obviously by 2% yield increasing.

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13

A. Attia, Hussain. "A Binary Weighted 7-steps Automatic Voltage Regulator." Research Journal of Applied Sciences, Engineering and Technology 12, no. 9 (May 5, 2016): 947–54. http://dx.doi.org/10.19026/rjaset.12.2812.

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14

M., Modu, Jibril D., and Idakwo O. "Modelling and Simulation of Automatic Voltage Regulator System." International Journal of Computer Applications 178, no. 1 (November 15, 2017): 24–28. http://dx.doi.org/10.5120/ijca2017915715.

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15

HOGG, B. W., Q. H. WU, and E. SWIDENBANK. "Optimal PID automatic voltage regulator for synchronous machines." International Journal of Control 50, no. 6 (December 1989): 2615–34. http://dx.doi.org/10.1080/00207178908953518.

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16

Jung-Min Kwon, Kyu-Tae Kim, and Bong-Hwan Kwon. "Comments on "Three-Arm AC Automatic Voltage Regulator." IEEE Transactions on Industrial Electronics 59, no. 1 (January 2012): 646–49. http://dx.doi.org/10.1109/tie.2011.2166234.

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17

Aguila-Camacho, Norelys, and Manuel A. Duarte-Mermoud. "Fractional adaptive control for an automatic voltage regulator." ISA Transactions 52, no. 6 (November 2013): 807–15. http://dx.doi.org/10.1016/j.isatra.2013.06.005.

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18

Park, C. Y., J. M. Kwon, and B. H. Kwon. "Automatic voltage regulator based on series voltage compensation with ac chopper." IET Power Electronics 5, no. 6 (July 1, 2012): 719–25. http://dx.doi.org/10.1049/iet-pel.2011.0337.

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19

Nurbosynov, D. N., T. V. Tabachnikova, and A. V. Sharygin. "ALGORITHMS AND MATHEMATICAL MODELS FOR AUTOMATIC CHANGING OF SETTINGS OF REGULATION UNDER LOAD IN THE ONLINE MODE." Oil and Gas Studies, no. 6 (December 1, 2016): 129–33. http://dx.doi.org/10.31660/0445-0108-2016-6-129-133.

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The algorithms and mathematical models for the automatic detection and changing of settings of dead zones and time exposure of microprocessor systems for operating the drive of device for voltage regulation in power transformers under load (RPN) are developed. A model of the voltage regulator with blocks for automatically changing the stabilized voltage level at the center of power supply and settings of dead zones and exposure time is developed. The graphs of automatic change of settings of under load regulation according to specified algorithms in function of time.

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20

Costa Nascimento, Priscila, Michel Girotto de Oliveira, and José Carlos M. Vieira. "Investigation on Using Low Voltage Automatic Regulation to Minimize the Impacts of Charging Plug-in Electric Vehicles in Distribution Systems." Renewable Energy and Power Quality Journal 19 (September 2021): 85–90. http://dx.doi.org/10.24084/repqj19.222.

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The growth of micro and mini distributed generation and, more recently, the use of electric energy storage systems and the incentives for electric mobility are important examples of the transformations that distribution networks have been going through. In this context, this paper firstly presents the impacts of uncoordinated plug-in electric vehicles (PEVs) charging in a real Brazilian distribution system. Four scenarios were elaborated with different PEVs penetration levels and the results show increased voltage unbalance, system losses, and violations of the steady-state voltage limits, even in the presence of an automatic voltage regulator installed in the medium voltage network. Then, as the main contribution, the potential usage of automatic voltage regulation at the low voltage network was investigated to minimize the negative impacts of uncontrolled PEV charging on distribution system steady-state operation. It is important to highlight that this is not a common practice of utilities in Brazil. The obtained results showed that regulating the voltage at the low voltage side could be an effective solution to keep the voltages within statutory limits.

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21

Anwar, N., A. Hanif, M. U. Ali, and A. Zafar. "Chaotic-based particle swarm optimization algorithm for optimal PID tuning in automatic voltage regulator systems." Electrical Engineering & Electromechanics, no. 1 (February 23, 2021): 50–59. http://dx.doi.org/10.20998/2074-272x.2021.1.08.

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Introduction. In an electrical power system, the output of the synchronous generators varies due to disturbances or sudden load changes. These variations in output severely affect power system stability and power quality. The synchronous generator is equipped with an automatic voltage regulator to maintain its terminal voltage at rated voltage. Several control techniques utilized to improve the response of the automatic voltage regulator system, however, proportional integral derivative (PID) controller is the most frequently used controller but its parameters require optimization. Novelty. In this paper, the chaotic sequence based on the logistic map is hybridized with particle swarm optimization to find the optimal parameters of the PID for the automatic voltage regulator system. The logistic map chaotic sequence-based initialization and global best selection enable the algorithm to escape from local minima stagnation and improve its convergence rate resulting in best optimal parameters. Purpose. The main objective of the proposed approach is to improve the transient response of the automatic voltage regulator system by minimizing the maximum overshoot, settling time, rise time, and peak time values of the terminal voltage, and eliminating the steady-state error. Methods. In the process of parameter tuning, the Chaotic particle swarm optimization technique was run several times through the proposed hybrid objective function, which accommodates the advantages of the two most commonly used objective functions with a minimum number of iterations, and an optimal PID gain value was found. The proposed algorithm is compared with current metaheuristic algorithms including conventional particle swarm optimization, improved kidney algorithm, and others. Results. For performance evaluation, the characteristics of the integral of time multiplied squared error and Zwe-Lee Gaing objective functions are combined. Furthermore, the time-domain analysis, frequency-domain analysis, and robustness analysis are carried out to show the better performance of the proposed algorithm. The result shows that automatic voltage regulator tuned with the chaotic particle swarm optimization based PID yield improvement in overshoot, settling time, and function value of 14.41 %, 37.91 %, 1.73 % over recently proposed IKA, and 43.55 %, 44.5 %, 16.67 % over conventional particle swarm optimization algorithms. The improvement in transient response further improves the automatic voltage regulator system stability for electrical power systems.

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22

Mehta, Utkal, and Gancho Vachkov. "Comparative study of constraint optimizations for automatic voltage regulator." World Journal of Engineering 12, no. 2 (April 1, 2015): 95–102. http://dx.doi.org/10.1260/1708-5284.12.2.95.

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A notable literature is available on optimal design of PID parameters using various evolutionary algorithms. The proper selection of an optimization algorithm is significantly important in finding the robust solution for a given optimization problem. Two most powerful optimization techniques are cuckoo optimization algorithm (COA) and particle swarm optimization (PSO). In this paper, a tight constraint is developed to ensure the less variation in the control input signal and at the same time the overall dynamic performance is not compromised for automatic voltage regulator (AVR) system. Then, using two metaheuristic search algorithms the optimal tune techniques are implemented by imposing the performance index. The presented performance index performs well in the presence of the uncertainties in system parameters. A result is discussed in the simulation study.

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23

Mukti, Ersalina Werda, Sulistyo Wijanarko, and Anwar Muqorobin. "Replacement of Analog Automatic Voltage Regulator using Digital Technology." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 1 (February 1, 2016): 53. http://dx.doi.org/10.11591/ijece.v6i1.8814.

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Before the 90’s, many power plants in Indonesia were equipped with analog controllers and now those power plants are still in operation to produce electricity. One of those controller parts is Automatic Voltage Regulator (AVR). If a failure occurs in the AVR, the economic solution is by replacing the damaged electronic component with new component. However this method will not solve the problem if the components are not available in local market or become obsolete. Purchasing the new AVR that compatible with other controller parts cannot be done again because the analog controllers are no longer produced by the vendor. Furthermore, replacement of all the controllers with the current technology become expensive. According to this, an alternative solution is proposed in this paper by designing an AVR that compatible with other controller parts and considering the availability of the electronic components in local market. ATmega8 microcontroller is used to implement a digital AVR and employing op amp based as its signal conditioning. The result shows that the digital AVR can reduce hardware size and power consumption. The digital AVR also meets the computation rate of the computation signal.

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24

Mukti, Ersalina Werda, Sulistyo Wijanarko, and Anwar Muqorobin. "Replacement of Analog Automatic Voltage Regulator using Digital Technology." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 1 (February 1, 2016): 53. http://dx.doi.org/10.11591/ijece.v6i1.pp53-62.

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Before the 90’s, many power plants in Indonesia were equipped with analog controllers and now those power plants are still in operation to produce electricity. One of those controller parts is Automatic Voltage Regulator (AVR). If a failure occurs in the AVR, the economic solution is by replacing the damaged electronic component with new component. However this method will not solve the problem if the components are not available in local market or become obsolete. Purchasing the new AVR that compatible with other controller parts cannot be done again because the analog controllers are no longer produced by the vendor. Furthermore, replacement of all the controllers with the current technology become expensive. According to this, an alternative solution is proposed in this paper by designing an AVR that compatible with other controller parts and considering the availability of the electronic components in local market. ATmega8 microcontroller is used to implement a digital AVR and employing op amp based as its signal conditioning. The result shows that the digital AVR can reduce hardware size and power consumption. The digital AVR also meets the computation rate of the computation signal.

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25

Flynn, D., B. W. Hogg, E. Swidenbank, and K. J. Zachariah. "Expert Self-Tuning Control for an Automatic Voltage Regulator." IFAC Proceedings Volumes 28, no. 26 (December 1995): 1–6. http://dx.doi.org/10.1016/s1474-6670(17)44725-2.

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26

Jalili-Kharaajoo, Mahdi, Ahmad Afshar, and Kaveh Moezzi-Madani. "A simple neuro automatic voltage regulator for power systems." IFAC Proceedings Volumes 36, no. 7 (June 2003): 211–15. http://dx.doi.org/10.1016/s1474-6670(17)35833-0.

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27

Abdel-Halim, M. A. "Performance characteristics of the thyristor divert automatic voltage regulator." European Transactions on Electrical Power 1, no. 3 (September 6, 2007): 143–48. http://dx.doi.org/10.1002/etep.4450010305.

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28

Nurdin, Alimin, Abdul Azis, and Reri Aresta Rozal. "PERANAN AUTOMATIC VOLTAGE REGULATOR SEBAGAI PENGENDALI TEGANGAN GENERATOR SINKRON." Jurnal Ampere 3, no. 1 (June 30, 2018): 163. http://dx.doi.org/10.31851/ampere.v3i1.2144.

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29

Flynn, D., B. W. Hogg, E. Swidenbank, and K. J. Zachariah. "Expert control of a self-tuning automatic voltage regulator." Control Engineering Practice 3, no. 11 (November 1995): 1571–79. http://dx.doi.org/10.1016/0967-0661(95)00167-s.

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30

Et. al., K. Muralidhar Goud,. "Stability analysis of Automatic Voltage Regulator using Fractional Order Controller." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 2 (April 10, 2021): 780–87. http://dx.doi.org/10.17762/turcomat.v12i2.1084.

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We aim to design a fractional order robust control system. It is an advanced model of classic PID controller whose order will be non-integer.PID controller that we generally use has many advantages and disadvantages with respect to the disadvantages like, it doesn’t give accurate values of constants, exact values of the time domain parameters as well as frequency domain parameters of the control system and we have more robust problem. Wearable electronic based an automatic voltage regulator can automatically preservesthe terminal voltage of generator at a fixed value under varyingly load and operating temperature. AVR controls output by sensing the output voltage at a power-generating coil and compares it to a stable reference. The combination of fractional order controller with an automatic voltage regulator is proved to be better than conventional controllers.

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31

Sambariya, D. K., and Vivek Nath. "Optimal Control of Automatic Generation with Automatic Voltage Regulator Using Particle Swarm Optimization." Universal Journal of Control and Automation 3, no. 4 (December 2015): 63–71. http://dx.doi.org/10.13189/ujca.2015.030401.

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32

Aribowo, Widi. "Focused Time Delay Neural Network For Tuning Automatic Voltage Regulator." EMITTER International Journal of Engineering Technology 7, no. 1 (June 15, 2019): 34–43. http://dx.doi.org/10.24003/emitter.v7i1.315.

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This paper proposes a novel controller for automatic voltage regulator (AVR) system. The controller is used Focused Time Delay Neural Network (FTDNN). It does not require dynamic backpropagation to compute the network gradient. FTDNN AVR can train network faster than other dynamic networks. Simulation was performed to compare load angle (load angle) and Speed. The performance of the system with FTDNN-AVR has compared with a Conventional AVR (C-AVR) and RNN AVR. Simulations in Matlab/Simulink show the effectiveness of FTDNN-AVR design, and superior robust performance with different cases.

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33

Djagarov, Nikolay, and Todor Lazarov. "Investigation of Automatic Voltage Regulator for a Ship’s Synchronous Generator." Power and Electrical Engineering 33 (2016): 16–21. http://dx.doi.org/10.7250/pee.2016.003.

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34

Yu Zaw, Wint Yu. "Performance Analysis of Automatic Voltage Regulator in Power Generation System." International Journal of Science and Engineering Applications 8, no. 7 (July 6, 2019): 180–85. http://dx.doi.org/10.7753/ijsea0807.1003.

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35

Brown, M. D., and E. Swidenbank. "Multi-processor architecture for implementation of an automatic voltage regulator." IFAC Proceedings Volumes 24, no. 7 (September 1991): 187–92. http://dx.doi.org/10.1016/b978-0-08-041699-1.50036-7.

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36

Hekimoğlu, Baran. "Sine-cosine algorithm-based optimization for automatic voltage regulator system." Transactions of the Institute of Measurement and Control 41, no. 6 (November 26, 2018): 1761–71. http://dx.doi.org/10.1177/0142331218811453.

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A novel design method, sine-cosine algorithm (SCA) is presented in this paper to determine optimum proportional-integral-derivative (PID) controller parameters of an automatic voltage regulator (AVR) system. The proposed approach is a simple yet effective algorithm that has balanced exploration and exploitation capabilities to search the solutions space effectively to find the best result. The simplicity of the algorithm provides fast and high-quality tuning of optimum PID controller parameters. The proposed SCA-PID controller is validated by using a time domain performance index. The proposed method was found efficient and robust in improving the transient response of AVR system compared with the PID controllers based on Ziegler-Nichols (ZN), differential evolution (DE), artificial bee colony (ABC) and bio-geography-based optimization (BBO) tuning methods.

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37

., Hestikah Eirene Patoding. "MODELING CONTROL OF AUTOMATIC VOLTAGE REGULATOR WITH PROPORTIONAL INTEGRAL DERIVATIVE." International Journal of Research in Engineering and Technology 04, no. 09 (September 25, 2015): 241–45. http://dx.doi.org/10.15623/ijret.2015.0409044.

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38

., Pallav Joshi. "OPTIMIZATION OF AUTOMATIC VOLTAGE REGULATOR BY PROPORTIONAL INTEGRAL DERIVATIVE CONTROLLER." International Journal of Research in Engineering and Technology 05, no. 01 (January 25, 2016): 137–39. http://dx.doi.org/10.15623/ijret.2016.0501026.

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39

., Rakesh Singh Lodhi. "MATLAB/SIMULINK OF AUTOMATIC VOLTAGE REGULATOR USING PSO-PID CONTROLLER." International Journal of Research in Engineering and Technology 05, no. 11 (November 25, 2016): 40–43. http://dx.doi.org/10.15623/ijret.2016.0511008.

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40

Li, Weilin, Huimin Li, Fei Ni, Xiaobin Zhang, and Antonello Monti. "Digital automatic voltage regulator for synchronous generator considering sensor failure." European Transactions on Electrical Power 22, no. 8 (November 15, 2011): 1037–52. http://dx.doi.org/10.1002/etep.622.

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41

Jerković Štil, Vedrana, and Muharem Mehmedović. "Interconnection and damping assignment automatic voltage regulator for synchronous generators." International Journal of Electrical Power & Energy Systems 101 (October 2018): 204–12. http://dx.doi.org/10.1016/j.ijepes.2018.03.022.

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42

Batmani, Yazdan, and Hêmin Golpîra. "Automatic voltage regulator design using a modified adaptive optimal approach." International Journal of Electrical Power & Energy Systems 104 (January 2019): 349–57. http://dx.doi.org/10.1016/j.ijepes.2018.07.001.

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43

Yang, Jia Zhi, Sheng Li Yi, Fei Yang, Xi Le Wang, and Fan Yang. "Design of Automatic High-Voltage Capacitor Charging System." Applied Mechanics and Materials 530-531 (February 2014): 1119–25. http://dx.doi.org/10.4028/www.scientific.net/amm.530-531.1119.

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A high precision, rapid and automatic high-voltage capacitor charging system is needed for pulse power system. A charging system based on high-voltage capacitor bank as energy storage device and c8051f020 MCU as control system, is designed in this paper .The hardware of this system includes a voltage measurement and control circuit, operation and display screen circuit, optical coupling circuit, fiber optical transceiver circuit. The software of this system uses closed-loop control algorithm to control the motor of voltage regulator, and the voltage of high voltage capacitor is charged from 0 to 20KV. By analyzing for the data of experimental and adopt the method of curve fitting, a modified voltage control algorithm is established. The modified algorithm improves the accuracy of charged voltage for high voltage capacitor to more than 99%.

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44

Anantwar, Harsha, Shanmukha Sundar, and B. R. Laksmikantha. "Optimal controllers design for voltage control in Off-grid hybrid power system." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 6 (December 1, 2019): 4586. http://dx.doi.org/10.11591/ijece.v9i6.pp4586-4597.

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<p>Generally, for remote places extension of grid is uneconomical and difficult. Off-grid hybrid power systems (OGHPS) has renewable energy sources integrated with conventional sources. OGHPS is very significant as it is the only source of electric supply for remote areas. OGHPS under study has Induction generator (IG) for wind power generation, Photo-Voltaic source with inverter, Synchronous generator (SG) for Diesel Engine (DE) and load. Over-rated PV-inverter has capacity to supply reactive power. SG of DE has Automatic voltage regulator for excitation control to regulate terminal voltage. Load and IG demands reactive power, causes reactive power imbalance hence voltage fluctuations in OGHPS. To manage reactive power for voltage control, two control structures with Proportional–Integral controller(PI), to control inverter reactive power and SG excitation by automatic voltage regulator are incorporated. Improper tuning of controllers lead to oscillatory and sluggish response. Hence in this test system both controllers need to be tune optimally. This paper proposes novel intelligent computing algorithm , Enhanced Bacterial forging algorithm (EBFA) for optimal reactive power controller for voltage control in OGHPS. Small signal model of OGHPS with proposed controller is tested for different disturbances. simulation results are compared with conventional method , proved the effectiveness of EBFA.</p>

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45

Satpathi, Kuntal, Abhisek Ukil, Josep Pou, and Michael Adam Zagrodnik. "Design, Analysis, and Comparison of Automatic Flux Regulator With Automatic Voltage Regulator-Based Generation System for DC Marine Vessels." IEEE Transactions on Transportation Electrification 4, no. 3 (September 2018): 694–706. http://dx.doi.org/10.1109/tte.2018.2826439.

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46

Choe, Yeon-Wook. "Design and Performance Analysis of PID type Controllers for Automatic Voltage Regulator(AVR) System Based on i-PID, GPI and OCD Methods." Transactions of The Korean Institute of Electrical Engineers 65, no. 8 (August 1, 2016): 1383–91. http://dx.doi.org/10.5370/kiee.2016.65.8.1383.

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47

Kadyrov, Ishembek, Nurzat Karaeva, Zheenbek Andarbekov, Bakytuulu Azamat, Oleg Fedorov, and Oleg Vladimirov. "Automatic voltage regulation system construction for synchronous generator of a small hydro power plant using thyristor pathogens." E3S Web of Conferences 178 (2020): 01036. http://dx.doi.org/10.1051/e3sconf/202017801036.

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The article presents indicators of the hydropower potential of Kyrgyzstan, shows the share of small hydropower plants in the production of electric energy in the energy sector of the republic, reveals the problematic issues that need to be revealed in this work. A brief description of the existing automatic voltage regulation system and automatic field blanking system is given. Based on the analysis of existing systems, their shortcomings were identified and the main functions formulated for automatic voltage regulation systems in both static and dynamic modes associated with starting and stopping the generator, loading and dumping, as well as protective measures taken to ensure reliability operation of the hydraulic unit. The result of the research is the development of the main functional blocks in the system of automatic voltage regulation with a thyristor pathogen and a brief explanation of their work. The synthesis technique of the excitation current regulator of a synchronous generator and the main indicators obtained in the modernization process are shown. In conclusion, all the functions inherent in the modernized system for automatically controlling the excitation of a synchronous generator, aimed at the safe operation of the hydraulic unit, are noted.

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Setiawan, Anas, Panca Mudjirahardjo, and Wijono . "Automatic Voltage Regulator (AVR) Optimization Based on PID Using the Hybrid Grey Wolf Optimization - Genetic Algorithm (HGWGA) Method." International Journal of Computer Applications Technology and Research 10, no. 6 (June 2021): 136–41. http://dx.doi.org/10.7753/ijcatr1006.1002.

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In the generator set (genset), the voltage stability system is affected by the excitation system controlled by control circuit called AVR (Automatic Voltage Regulator). One of the important components in the AVR system is the algorithm of the controller. The application of the PID control method has been widely used in the design of AVR controllers. This study applies the GWO-GA (Grey Wolf Optimization - Genetic Algorithm) hybrid method on PID parameters setting. The best transient automatic voltage regulator (AVR) response results were obtained when using the hybrid genetic algorithm - grey wolf optimization (HGAGW) method with a fitness score of 4.3039, the Grey wolf optimization (GWO) method with a fitness score of 4.5059, and the genetic algorithm (GA) method with a fitness score of 6.0214.

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Vukic, Vladimir, and Predrag Osmokrovic. "On-line monitoring of base current and forward emitter current gain of the voltage regulator's serial pnp transistor in a radiation environment." Nuclear Technology and Radiation Protection 27, no. 2 (2012): 152–64. http://dx.doi.org/10.2298/ntrp1202152v.

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Abstract:

A method of on-line monitoring of the low-dropout voltage regulator's operation in a radiation environment is developed in this paper. The method had to enable detection of the circuit's degradation during exploitation, without terminating its operation in an ionizing radiation field. Moreover, it had to enable automatic measurement and data collection, as well as the detection of any considerable degradation, well before the monitored voltage regulator's malfunction. The principal parameters of the voltage regulator's operation that were monitored were the serial pnp transistor's base current and the forward emitter current gain. These parameters were procured indirectly, from the data on the voltage regulator's load and quiescent currents. Since the internal consumption current in moderately and heavily loaded devices was used, the quiescent current of a negligibly loaded voltage regulator of the same type served as a reference. Results acquired by on-line monitoring demonstrated marked agreement with the results acquired from examinations of the voltage regulator's maximum output current and minimum dropout voltage in a radiation environment. The results were particularly consistent in tests with heavily loaded devices. Results obtained for moderately loaded voltage regulators and the risks accompanying the application of the presented method, were also analyzed.

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GÜVENÇ, Uğur, Tuncay YİĞİT, Ali Hakan IŞIK, and İbrahim AKKAYA. "Performance analysis of biogeography-based optimization for automatic voltage regulator system." TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES 24 (2016): 1150–62. http://dx.doi.org/10.3906/elk-1311-111.

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