EMTR Theory-based Fault Location for Series Compensated Transmission Line

被引：0

作者：

Shang L. ^{[1
]}

Hu Y. ^{[1
]}

Huang R. ^{[1
]}

Yang C. ^{[1
]}

机构：

[1] School of Electrical and Control Engineering, Xi'an University of Science and Technology, Xi'an

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2020年 / 40卷 / 20期

关键词：

Electromagnetic time reversal; Fault location; Mirror line; Series compensated line;

D O I：

10.13334/j.0258-8013.pcsee.191689

中图分类号：

学科分类号：

摘要：

Because of the existence of series compensation capacitance and the nonlinearity of metal oxide varistor (MOV), it is difficult to locate the fault of transmission line with series compensation capacitance. After considering the influence of series compensation capacitor on fault signal and the start-up time of non-linear MOV, the electromagnetic time reversal (EMTR) theory was applied to the fault location of series compensation line. A novel fault location method of series compensation line was proposed in this paper. Firstly, the fault current at both ends of the line was decoupled by Karenbauer transform and then decomposed by wavelet transform to extract the transient signal of the fault current. Then the transient fault current signal was time reversed and connected to both ends of the mirror image of the transmission line as a current source. The effective value of the current was calculated for each assumed fault point. Because the maximum ground current occurs at the real fault point, the point with the maximum ground current is the fault point. The simulation results verify the validity and correctness of the proposed fault location method, and the method is not affected by fault type, transition resistance and closing angle. © 2020 Chin. Soc. for Elec. Eng.

引用

页码：6603 / 6608

页数：5

共 17 条

[1]

Li Xiaopeng, He Zhengyou, Liao Kai, Fault location of transmission line with series compensator based on natural frequencies of travelling wave, Power System Technology, 36, 6, pp. 71-76, (2012)

[2]

Shang Liqun, Xia Yuanyang, Energy ratio function- based traveling wave fault location for series compensated line, Proceedings of the CSEE, 35, 20, pp. 5228-5234, (2015)

[3]

Huang Zijun, Chen Yunping, Application of wavelet transform based travelling wave fault location to series compensated lines, Power System Technology, 28, 18, pp. 5-9, (2004)

[4]

Quan Yusheng, He Qiuyu, Wang Qian, Et al., New algorithm of traveling wave fault location for series compensated line using mathematical morphology, High Voltage Engineering, 33, 7, pp. 177-181, (2007)

[5]

Kang Zhongjian, Xu Li, Fan Jianchuan, Et al., Fault location for high voltage transmission lines with the series compensation capacitor based on Hilbert-Huang transform and neural network, Power System Technology, 33, 20, pp. 142-146, (2009)

[6]

Kang Xiaoning, Ning Rong, Qi Jun, Et al., Fault location based on dual-terminal electrical variables for line with series compensation, Electric Power Automation Equipment, 34, 8, pp. 47-51, (2014)

[7]

Shu Hongchun, Si Dajun, Chen Xueyun, Study on locating faults on series compensated lines based-on distributed parameter line model, Proceedings of the CSEE, 22, 4, pp. 72-76, (2002)

[8]

Chen Zheng, Dong Xinzhou, Luo Chengmu, A new accurate two-terminal locating algorithm for series compensated line, Proceedings of the CSEE, 23, 1, pp. 11-15, (2003)

[9]

Suonan Jiale, Xu Wenxuan, He Shien, Et al., A fault location algorithm for series compensated transmission lines based on two-end information, Proceedings of the CSEE, 33, 19, pp. 157-164, (2013)

[10]

Zhang Ying, Liang Jun, Yun Zhihao, Et al., Distributed parameter model based single-line fault location algorithm for series-compensated double-circuit transmission lines, Automation of Electric Power Systems, 41, 1, pp. 134-139, (2017)

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