Analysis for a Trip Fault in a Series Compensation Circuit

doi:10.11930/j.issn.1004-9649.2014.7.81.4

Abstract

Abstract: A three-phase trip fault in a series compensation circuit of 500 kV caused by the selected-area deflection was analyzed, which took into account of the behaviors of the series compensation relay and line relay. Based on the real circuit, a simulation model was established and the simulation with the parameters corresponding to the operation condition was conducted by using RTDS. It was found that the behaviors of relays were in accordance with the principles of design and recorded data. When a single phase fault through the transition resistance and transient conduction in phase B of series compensation’s MOV occur, the selected-area deflection will take place and the two-line relays will select different phases, which will amplify the fault area. Based on case analyses, the phase-to-ground faults at single or double circuits, when the series compensation works or not, were researched, respectively. The error conditions of zero and negative current areas were obtained. Moreover, some feasible solutions in the actual situation were proposed as well.

Key words: series compensation, selected-area deflection, transition resistance, current reverse

CLC Number:

TM773

LI Zhen-dong, LI Dai-jun, ZANG Bin, SHANG Dong-hui, SHI Xin. Analysis for a Trip Fault in a Series Compensation Circuit[J]. Electric Power, 2014, 47(7): 81-85.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.7.81.4

https://www.electricpower.com.cn/EN/Y2014/V47/I7/81

References

[1] CAGNON C. Extensive evaluation of high performance protection relays for the Hydro-Quebec series compensated network [J]. IEEE Trans on PWRD, 1994, 9(4): 1799-1811.
[2] 舒印彪,刘泽洪,高理迎,等. ±800 kV 6 400 MW特高压直流输电工程设计[J]. 电网技术,2006,30（1）：1-8.
SHU Yin-biao, LIU Ze-hong, GAO Li-ying, et al . A preliminary exploration for design of ±800 kV UHVDC project with transmission capacity of 6 400 MW [J]. Power System Technology, 2006, 30(1): 1-8.
[3] 常勇,陈秋安,张平,等. 换流站滤波器非同步投切对其差动保护的影响[J]. 中国电力,2012,45（3）：11-13.
CHANG Yong, CHEN Qiu-an, ZHANG Ping, et al . Study on the HVDC AC filer synchronous switching and protection improvement [J]. Electric Power, 2012, 45(3): 11-13.
[4] 李九虎,郑玉平,陈松林,等. 750 kV系统继电保护研究[J]. 中国电力,2006,39（1）：7-9.
LI Jiu-hu, ZHENG Yu-ping, CHEN Song-lin, et al . Research on relay protection of 750 kV system[J]. Electric Power, 2006, 39(1): 7-9.
[5] 赵淑珍,于德明,李钢. 大房双回500 kV线路蔚县串补站二次系统及试验[J]. 华北电力技术,2002,34（3）：5-8.
ZHAO Shu-zhen, YU De-ming, LI Gang. Testing on secondary systems in Weixian series compensation station of Datong- Fangshan 500 kV double circuits [J]. North China Electric Power, 2002, 34(3): 5-8.
[6] SEN K K. SSSC-static synchronous series compensator: Theory modeling and application [J]. IEEE Trans Power Del, 1998, 13(1): 241-246.
[7] OOI B T, DAI S Z. Series type solid state static VAR compensator [J]. IEEE Trans on Power Electron, 1993, 8(2): 164-169.
[8] SWIFT F J, WANG H F. Application of the controllable series compensator in damping power system oscillations[J]. IEE Proceedings on Generation, Transmission and Distribution, 1996, 14(4): 359-364.
[9] EI-MOURSI M S, SHARAF A M. Novel controllers for the 48-pulse VSC STATCOM and SSSC for voltage regulation and reactive power compensation[J]. IEEE Trans on Power Systems, 2005, 20(4): 1985-1997.
[10] GHAISARI J, BAKHSHAIA R. Parameterize pre-compensator design for static synchronous series compensator(SSSC)[J]. Electrical and Computer Engineering, 2004, 3: 1617-1620.
[11] 曹树江,林榕,魏颖莉. 单故障和复故障下变压器差动保护计算分析[J]. 中国电力,2012,45（5）：16-18.
CAO Shu-jiang, LIN Rong, WEI Ying-li. A new analysis method for transformer differential current protection under single and multiple faults [J]. Electric Power, 2012, 45(5): 16-18.
[12] 索南加乐,刘凯,张怿宁,等. 基于电阻性差流的差动保护新原理[J]. 电力系统自动化,2007,31（16）：45-48.
SUONAN Jia-le, LIU Kai, ZHANG Yi-ning, et al . New principle of differential protection based on the resistance component of differential current[J]. Automation of Electric Power Systems, 2007, 31(16): 45-48.
[13] 武宇平,钱锋,赵淑珍. 丰万顺串补与大房线500 kV串补站串补保护触发回路[J]. 华北电力技术,2004,36（12）：24-25.
WU Yu-ping, QIAN Feng, ZHAO Shu-zhen. Protective trigger circuits of Feng-Wan-Shun and Datong-Fangshan line 500 kV series compensation equipment[J]. North China Electric Power, 2004, 36(12): 24-25.
[14] 夏毅,王凤岭,王翀,等. 500 kV上承双回线路保护与串补保护相互影响分析[J]. 中国电力,2010,43（8）：87-88.
XIA Yi, WANG Feng-ling, WANG Chong, et al . Analysis of mutual influence between protection of 500 kV Shang-Cheng double circuit lines and SCC protection [J]. Electric Power, 2010, 43(8): 87-88.