The Use of Thyristor-Based Static VAR Compensators to Enhance Distribution System Security
DOI:
https://doi.org/10.25729/esr.2025.01.0007Keywords:
Power distribution system, reactive power, voltage, topology, graph theoryAbstract
Nowadays, FACTS devices are commonly used for voltage regulation and optimal control of operating parameters of power systems. Controllable FACTS devices relying on power electronics can be used to obtain the required characteristic curve not only for power transmission lines, but also for a specific part of the electrical system. This paper reports the results of a study on operating conditions of a real-world distribution system that has a static thyristor-based VAR compensator (SVC) installed to enhance its security. The efficiency of distribution systems and available ranges of their operating conditions largely depend on the placement of compensation devices and the rules governing their capacity. We propose a consistent approach based on graph theory methods to address this issue. The approach involves examining the conditions for nodal voltage stabilization to reduce the total active power loss in the electrical network. The ranges of variation in SVC capacity are identified and appropriate SVC control rules required to ensure the lowest possible total power loss in the network are established.
References
N. G. Hingorani, L. Gyugyi, Understanding FACTS: concepts and technology of flexible AC transmission systems. Wiley-IEEE Press, 2000, 428 c.
N. K. Arkhipov, The voltage profile in power distribution systems. Moscow, Russia: Publishing House of the All-Union Distance Education Energy Institute, 1964, 131 p. (In Russian)
Ya. D. Barkan, Automation of voltage control in distribution systems. Moscow, Russia: Energiya Publishing House, 1972, 120 p. (In Russian)
Guidelines for reactive power compensation in distribution systems. Moscow, Russia: Energiya Publishing House, 1974, 73 p. (In Russian)
Yu. S. Zhelezko, “Capacity calculation and placement of local voltage regulators,” Elektricheskie stantsii, no. 11, pp. 34–36, 1972. (In Russian)
M. M. Tukhvatullin, V. S. Ivekeyev, I. A. Lozhkin, F. F. Uhrmanova, “Analysis of modern FACTS devices used to improve the performance of Russian electric power systems operation,” Russian Electrical Engineering, no 3(28), pp. 41–46, 2015. (in Russian)
Yu. S. Zhelezko, Reactive power compensation and power quality enhancement. Moscow, Russia: Energoatomizdat, 1985. (In Russian)
V. B. Neshtatev, “Optimal choice of reactive power sources in power distribution systems,” Extended abstract of Ph.D. dissertation, Siberian Federal University, Krasnoyarsk, Russia, 2012, 21 p. (In Russian).
A. M. Bryantsev, B. I. Bazylev, A. I. Lurie, S. V. Smolovik, “Voltage control and stabilization in high-voltage electrical networks by inductance-capacitance controlled sources,” Elektrichestvo, no. 10, pp. 15–21, 2012. (In Russian)
A. M. Bryantsev, M. A. Bryantsev, B. I. Bazylev, S. V. Dyagileva, P. P. Karymov, A. I. Lurie, E. E. Makletsova, A. A. Negryshev, S. V. Smolovik, “The state-of-the-art and prospects for adoption of controllable reactive power sources (RPS) with magnetically controlled shunt reactors (CSR) and static capacitor banks (SCB) in electric power systems of the Russian Federation and CIS,” Energy expert, no. 2 (19), pp. 88–93, 2010. (in Russian)
M. A. Bryantsev, B. I. Bazylev, S. V. Dyagileva, A. A. Negryshev, P. P. Karymov, Automatic systems of reactive power compensation and grid voltage stabilization based on controlled shunt reactors and static capacitor banks. Moscow, Russia: TRAVEC, 2010. (In Russian)
D. S. Akhmetbayev, D. A. Aubakir, Y. Zh. Sarsikeyev, B. A. Bainiyazov, M. A. Surkov, V. I. Rozhko, G. N. Ansabekova, A. S. Yerbolova, A. T. Suleimenov, M. S. Tokasheva, “Development of topological method for calculating current distribution coefficients in complex power networks,” Results in Physics, vol. 7, pp. 1644–1649, 2017. DOI: 10.1016/j.rinp.2017.03.010.
D. S. Akhmetbaev, A. R. Dzhandigulov, A. D. Akhmetbaev, “Topological algorithm for forming nodal stresses of complex networks energy systems,” E3S Web of Conferences, vol. 139, Art. no. 01066, 2019. DOI: 10.1051/e3sconf/201913901066.
D. S. Akhmetbaev, A. D. Akhmetbaev, A. R. Aidarova, E. K. Utegenov, “A systems approach to calculation of compensation devices capacities in power system grids,” in Methodological issues of reliability studies of large energy systems, vol. 69, book 2, ESI SB RAS, Irkutsk, Russia, 2018, pp. 421–429. (In Russian)
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