Vestnik of Samara State Technical University. Technical Sciences SeriesVestnik of Samara State Technical University. Technical Sciences Series1991-85422712-8938Samara State Technical University35228Research ArticleAnalysis of existing methods of voltage regulation within the framework of developing questions of creation of the centralized system of automatic voltage regulationRakhaevAlexander V.<p>Postgraduate Student</p>journal@eco-vector.comSamara State Technical University2207202028111412819072020Copyright © 2020, Samara State Technical University2020<p style="text-align: justify;">The prevention and elimination of emergency conditions, as well as the reduction of energy losses in electric networks are urgent tasks. The solution of these problems, in some situations, is directly related to voltage regulation. Improving the reliability of the electric power system, equipment of power plants and substations, as well as reducing losses in electric networks, require optimal voltage regulation. Due to the constantly changing circuit-and-mode situation in electric power systems, the high workload of the dispatching and operational personnel, especially during the repair campaign, the need to take into account a number of factors that affect the operating mode of the electric power system, voltage regulation by dispatching and operational personnel is manually, necessary automation of the process of voltage regulation in electric networks.</p>
<p style="text-align: justify;">The article discusses the current principles of voltage regulation in the electric network of the Unified Energy System of Russia, outlines the main practical tasks related to voltage regulation. To solve these problems, it is proposed to create a special regime automation, namely, a centralized system for automatic voltage regulation. The structure and operation algorithm of a centralized system for automatic voltage regulation are described.</p>
<p style="text-align: justify;">The implementation of a centralized system of automatic voltage regulation in the Unified Energy System of Russia will reduce energy losses, as well as ensure acceptable voltage levels according to the requirements of the quality of electricity and working conditions of insulation of electrical equipment and prevent (eliminate) unacceptable current overloads of power lines and equipment in cases where the implementation of this tasks using existing tools are difficult. The implementation of such automation also allows to relieve dispatching and operational personnel.</p>voltage regulation automationcontrol computer complexcalculation model for assessing the stateoptimization of voltage and reactive power modevoltage graphавтоматизация регулирования напряженияуправляющий вычислительный комплексрасчетная модель оценивания состоянияоптимизация режима по напряжению и реактивной мощностиграфик напряжения[STO 59012820.27.010.001-2013. Rules for developing a voltage schedule at the control points of dispatch centers of OJSC «SO UPS». Introduced on March 20, 2014. - M.: OJSC «SO UPS», 2014. - 14 p. - (Or-ganization Standard).][GOST 32144-2013. Electric Energy. Electromagnetic compatibility. QUALITY STANDARDS FOR ELECTRIC ENERGY IN GENERAL POWER SUPPLY SYSTEMS.][Guidelines for the stability of energy systems, approved by order of the Ministry of Energy of Russia dated 03.08.2018 No. 630.][Rules for preventing the development and elimination of violations of the normal regime of the electrical part of power systems and electric power facilities, approved by order of the Ministry of Energy of Russia dated 12.07.2018 No. 548.][Gadzhiev M.G. Improving the accuracy of accounting for power losses per crown during operational opti-mization of the EES mode. dis. ... cand. Phys.-Math. Sciences: 05.14.02. Moscow: Moscow Power Engi-neering University, 2012.20 p.][Burgodorf V.V., Emelyanov N.P., Timasheva L.V., Tikhodeev N.N., Perelman L.S., Egorova L.V., Kislova N.S., Sokhakyan R.A. Guidelines for accounting for corona losses and corona interference when choosing AC overhead power lines 330-750 kV and direct current 800-1500 kV. M.: Ministry of Energy and Elec-trification of the USSR, 1975. 71 p.][Levitov V.I. Corona AC. Questions of theory, research methods and practical characteristics. M., "Energy", 1975.280 p. with ill.][Dkhomovskaya L.F., Larionov V.P., Pintal Yu.S., Razevig D.V., Ryabkova E.Ya. High voltage technique. A textbook for students of electrical and electrical specialties of universities. Under the general ed. D.V. Razeviga. Ed. 2nd, rev. and add. M., «Energy», 1976. 480 p. with ill.][Kostyushko V.A. Analysis of calculated and experimental estimates of corona power losses on overhead AC power lines. - M.: NTF «Energoprogress», 2011. - 84 p.: ill. [Library of Electrical Engineering, Appendix to the journal «Energy», Vol. 6 (150)].][Arzamastsev D.A., Bartholomew P.I., Holyan A.M. ACS and optimization of power system modes: Text-book. manual for university students; Ed. Arzamastseva D.A. - M .:Higher school, 1983. - 208 p. ill.][Gornstein V.M., Miroshnichenko B.P., Ponomarev A.V. et al. Methods for optimizing power system modes / Ed. V. M. Gornstein - M. Energy, 1981 - 336 p., ill.][Venikov V.A., Idelchik V.I., Liseev M.S. Voltage regulation in electric power systems. - M .: Energoatomizdat, 1985 .-- 216 p., ill.][Idelchik V.I. Electrical systems and networks: Textbook for universities. - M .: Energoatomizdat, 1989 .-- 592 p.: ill.14. Rebecca Ng Shin Mei, Mohd Herwan Sulaiman, Zuriani Mustaffa, Hamdan Daniyal. Optimal reactive power dispatch solution by loss minimization usingmoth-flame optimization technique // Applied Soft Computing 59 (2017) 210–222.][Abessi, Ahad & Vahidinasab, Vahid & Ghazizadeh, Mohammad. (2015). Centralized Support Distributed Voltage Control by Using End-Users as Reactive Power Support. IEEE Transactions on Smart Grid. 7. 1-1. 10.1109/TSG.2015.2410780.][Arif, Md Arifin & Ndoye, Mandoye & Murphy, Gregory & Aganah, Kennedy. (2017). A stochastic game framework for reactive power reserve optimization and voltage profile improvement. 1-6. 17.1109/ISAP.2017.8071372.][Dong, Yuexin and Honggeng Yang. “A New Approach for Reactive Power/Voltage Optimization Control of Regional Grid.” 2010 Asia-Pacific Power and Energy Engineering Conference (2010): 1-5.][Kawano, Shunsuke & Yoshizawa, Shinya & Hayashi, Yasuhiro. (2016). Centralized Voltage Control Method using Voltage Forecasting by JIT Modeling in Distribution Networks. 10.1109/TDC.2016.7520006.][Zengqiang, Mi & Fei, Wang. (2009). Substation Reactive Power and Voltage Control Using Fuzzy Control Theory. 2009 International Conference on Industrial and Information Systems. 417-420. 10.1109/IIS.2009.85.][Muller, Zdenek & Muller, Miroslav & Tuzikova, Valerya & Tlusty, Josef & Cernan, Martin & Beck, Y. & Golan, Gady. (2016). Novel method of optimization of losses in power grid. 1-5. 10.1109/ICSEE.2016.7806044.][Raj, Saurav & Bhattacharyya, Biplab. (2016). Weak bus determination and real power loss minimization using Grey wolf optimization. 10.1109/ICPES.2016.7584143.][Rao, N. & B., Jagannath & Jagannadham, Anyapu. (2015). Optimal reactive power flow control for min-imization of active power losses using Particle swarm Optimization. 38-41. 10.1109/PCCCTSG.2015.7503954.][I. Roytelman & V. Ganesan. (2000). Coordinated Local and Centralized Control in Distribution Management Systems. IEEE Transactions on Power Delivery (Volume: 15, Issue: 2 , Apr 2000 ). 718-724. 10.1109/61.853010.][Singh, Pushpendra & Purey, Pradeep & Titare, L & Choube, S. (2017). Optimal reactive power dispatch for enhancement of static voltage stability using jaya algorithm. 1-5. 10.1109/ICOMICON.2017.8279044.][Soleimani Bidgoli, Hamid & Van Cutsem, Thierry. (2017). Combined Local and Centralized Voltage Con-trol in Active Distribution Networks. IEEE Transactions on Power Systems. PP. 1-1. 10.1109/TPWRS.2017.2716407.][Sreejaya, P. & Rejitha, R. (2008). Reactive power and Voltage Control in Kerala Grid and Optimization of Control Variables Using Genetic Algorithm. 2008 Joint International Conference on Power System Tech-nology POWERCON and IEEE Power India Conference, POWERCON 2008. 1 - 4. 10.1109/ICPST.2008.4745156.][Takahashi, Naoyuki and Yasuhiro Hayashi. “Centralized voltage control method using plural D-STATCOM with controllable dead band in distribution system with renewable energy.” 2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe)(2012). 1-5. 10.1109/ISGTEurope.2012.6465827.][Vovos, Panagis & Kiprakis, Aristides & Wallace, A.R. & Harrison, Gareth. (2007). Centralized and Dis-tributed Voltage Control: Impact on Distributed Generation Penetration. Power Systems, IEEE Transactions on. 22. 476 - 483. 10.1109/TPWRS.2006.888982.][Masato, Watanabe & Masahito, Miyata & Nobuhiko, Itaya & Tomihiro, Takano. (2007). Field demonstra-tion and evaluation of centralised voltage control system for distribution network. Power Systems, 24th International Conference & Exhibition on Electricity Distribution (CIRED), Open Access Proc. J., 2017, Vol. 2017, Iss. 1, pp. 1143–1147.][Yapici, Hamza & Çetinkaya, Nurettin. (2015). Reduction of power loss using reactive power optimization in a real distribution system. 1-4. 10.1109/INISTA.2015.7276731.][Bakhshideh Zad, Bashir & Lobry, Jacques & Vallee, François. (2016). A centralized approach for voltage control of MV distribution systems using DGs power control and a direct sensitivity analysis method. 10.1109/ENERGYCON.2016.7513970.][Jinhua, Zhang. (2009). Optimization Study on Voltage Level and Transmission Capacity. Power Systems, IEEE Transactions on. 24. 193 - 197. 10.1109/TPWRS.2008.2008609.][Jinhua, Zhang. (2010). Research on centralized and coordinate controls of multiple HVDC systems in China. 1 - 5. 10.1109/TDC.2010.5484630.]