Interference Analysis of Power Frequency Parameter Measurement for 1 000 kV Wanan-Zhebei UHV Transmission Line

doi:10.11930/j.issn.10.11930.2015.1.87

Abstract

Abstract: Interference analysis of power frequency parameter measurement of UHV transmission line is an important basis for selecting appropriate anti-interference test method and analyzing the testing result. The interference voltage signals of 1 000 kV Wannan-Zhebei UHV transmission line were tested during measuring the positive sequence and zero sequence parameters, and their spectrum characteristics was analyzed. On this basis, the field testing error of positive sequence parameters was also analyzed. The results show that the interference voltage has unbalance and time-variant features. Some difference exists between the power frequency parameter testing result obtained by power frequency method and that by variable frequency method. When the interference voltage is time-varied, the variable frequency method should be adopted to measure the power frequency parameter of transmission line.

CLC Number:

TM85

MA Yue, LI Guoman, WANG Shaohua, CUI Zhuye, JIN Yongtao, JIANG Jianling. Interference Analysis of Power Frequency Parameter Measurement for 1 000 kV Wanan-Zhebei UHV Transmission Line[J]. journal1, 2015, 48(1): 87-91.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.10.11930.2015.1.87

https://www.electricpower.com.cn/EN/Y2015/V48/I1/87

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