Development of phase-shifting complex for an ultra-high voltage network

   Introduction. Rapid development of remote control and digital technologies in the energy sector is driving the introduction of new approaches and methods in energy system management. One of the directions of development of the energy complex is to increase its stability and reliability. To accomplish this task, technical solutions have been developed in this work aimed at increasing the efficiency of the phase-shifting complex with thyristor control and integrating the device into the structure of the electrical network. Thanks to thyristor control, it became possible to
immerse this complex in the structure of remote control of the power system, which allows it to be used for operational and emergency management. The developed solutions are currently relevant.

   Goal. Investigation of existing phase-shifting complexes and development of a thyristor control circuit and algorithm.

   Materials and methods. The research is based on the analysis of the operation of existing phase-shifting systems and their control algorithms, the creation of a model in the software complexes MatLAB and RastrWin3 and the study of their influence on the parameters of the electric power regime.

   Results and discussion. In the course of the work, significant advantages of the thyristor control system were discovered, allowing the introduction of a phase-shifting complex into the structure of a complex ultrahigh voltage network, as well as the use of this complex in emergency management.

   Conclusion. Based on the results of the study, it can be concluded that the developed phase-shifting complex with thyristor control effectively regulates the flow of active power through the ultrahigh voltage network, increases the stability of the power system and increases the reliability of network equipment. Based on the results of the conducted research, further goals have been outlined for the development of methods to increase stability through the use of phase-shifting complexes.

1. Astashev MG, Novikov MA, Panfilov DI. On the calculation of operating modes of power transmission lines with controlled phase-rotating devices. Izvestiya Rossiiskoi akademii nauk. Energy. 2016;(1):15-23. EDN: VVGBLJ. (In Russ.).

2. Zhmurov VP, Stelmakov VN, Tarasov AN, Grinstein BI. Application of phase-rotating devices with thyristor control at large angles of phase shift regulation. Proceedings of the Russian Academy of Sciences. Energy. 2010;(5):132-142. EDN: MUWPKP. (In Russ.).

3. Zhmurov VP, Stelmakov VN, Tarasov AN. Application of phase-rotating devices with thyristor control as an element of controlled (flexible) AC power transmission lines. Electrical Engineering. 2014;(1):2-10. EDN: RNMDNL. (In Russ.).

4. Vodennikov DA. The use of a phase-rotating device to increase the capacity of an electric grid. Bulletin of the Moscow Power Engineering Institute. Bulletin of the Moscow Institute of Energy, 2020;(3):75-80. doi: 10.24160/1993-6982-2020-3-75-80. – EDN: ITYVSF. (In Russ.).

5. Astashev MG, Novikov MA, Panfilov DI. The use of phase-reversal devices with thyristor switches in active adaptive electric networks. 2013;5(10):70-77. EDN: VXBIDX. (In Russ.).

6. Odintsovo MV, Akimov DA, Korovkin NV, Frolov OV. Optimization of the operating modes of the power system using a phase-reversal transformer at a 500 kV substation. Scientific and Technical Bulletin of St. Petersburg State Polytechnic University. 2014;3(202):139-145. EDN: SUFINF. (In Russ.).

7. Brilinsky AS, Evdokunin GA, Kritsky VA. Phase-reversal transformer in the scheme of power output of a large hydroelectric power plant [et al.]. Izvestiya STC Unified Energy System. 2019;1(80):6-14. EDN: BCOXBD. (In Russ.).

8. Shoiko VP, Dukhanina KV. Evaluation of the effectiveness of using a phase-reversal transformer to increase the transmission capacity, taking into account the mode of the adjacent network. Bulletin of Irkutsk State Technical University. 2021;25(3(158)):369-379. doi: 10.21285/1814-3520-2021-3-369-379. EDN: FMONDH. (In Russ.).

9. Astashev MG, Panfilov DI. Phase-rotating devices with thyristor switches for active adaptive electric networks. Electricity. 2013;(8):60-65. EDN: QIZOQZ. (In Russ.).

10. Uzdenov HA, Alzhanov RS, Korshunov EA. The use of phase-rotating devices to increase the capacity of the electric grid and optimize active power flows. Electric power industry through the eyes of youth – 2017: Proceedings of the VIII International Scientific and Technical Conference, Samara, October 02-06, 2017. Vol. 2. Samara: Samara State Technical University; 2017. P. 185-188. EDN: ZIWZMH (In Russ.).

11. Utility model Patent No. 110558 U1 Russian Federation, IPC H02J 3/12. semiconductor phase-reversal device: No. 2011122939/07: application 08. 06. 2011: published 20. 11. 2011 / Zhmurov VP, Stelmakov VN, Tarasov AN; applicant Open Joint Stock Company "Power engineering institute named after GM. Krzhizhanovsky". EDN: CJEGRU. (In Russ.).

12. Kralin AA, Asabin AA, Kryukov EV. Phase-rotating device for medium voltage distribution networks. Proceedings of the RE. Alekseev NSTU. 2017;2(117):62-67. EDN: ZBMYHF. (In Russ.).

13. Patent No. 2711365 C1 Russian Federation, IPC H02H 7/18, H02J 3/18. Phase-rotating device: No. 2019126348: application 08/21/2019: published 01/16/2020 / MI. Petrov, MG. Astashev, DI. Panfilov; applicant Federal State Budgetary Educational Institution of Higher Education "National Research University "MEI" (FSBEI HE "NIU "MEI"). – EDN: UYSXYJ. (In Russ.).

14. Shakaryan YuG, Fokin VK, Likhachev AP. Established modes of electric power systems with phase–rotating devices (Part 1). Electricity. 2014;(7):16-25. EDN: SFUONT. (In Russ.).

15. Shakaryan YuG, Fokin VK, Likhachev AP. Established operating modes of electric power systems with phase-rotating devices (Part 2). Electricity. 2014;(8):9-18. EDN: SHDJPH. (In Russ.).