中国电力 ›› 2015, Vol. 48 ›› Issue (1): 87-91.DOI: 10.11930.2015.1.87

• 电网 • 上一篇    下一篇

1 000 kV皖南—浙北特高压线路工频参数测试干扰及结果分析

马跃1,李国满1,王少华2,崔竹叶3,金涌涛2,蒋建玲2   

  1. 1. 国家电网公司交流建设分公司,北京 100140;
    2. 国网浙江省电力公司电力科学研究院,浙江 杭州 310014;
    3. 杭州意能电力技术有限公司,浙江 杭州 310014
  • 收稿日期:2014-11-08 出版日期:2015-11-25 发布日期:2015-11-24
  • 作者简介:马跃(1982—),男,辽宁辽阳人,博士,高级工程师,从事交流特高压建设和管理工作。E-mail: yue-ma@sgcc.com.cn
  • 基金资助:
    国家电网公司科技资助项目(SGJLJSFW[2013]494);浙江省电力公司科技资助项目(5211011306XF)

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

MA Yue1, LI Guoman1, WANG Shaohua2, CUI Zhuye3, JIN Yongtao2, JIANG Jianling2   

  1. 1. AC Project Construction Branch, State Grid Corporation of China, Beijing 100140, China;
    2. State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China;
    3. Hangzhou Yineng Power Technology Co., Ltd., Hangzhou 310014, China
  • Received:2014-11-08 Online:2015-11-25 Published:2015-11-24

摘要: 特高压线路工频参数测试干扰分析是选择适合工频参数测试方法及测试结果分析的重要基础。测试了1 000 kV皖南—浙北特高压线路正序和零序参数测试期间的干扰电压信号,分析了其频谱特征;在此基础上,通过与正序参数仿真计算值的对比分析了正序参数实际测试偏差。结果表明:皖南—浙北特高压同塔双回线路工频参数测试期间,干扰电压存在“三相不平衡性及时变性”的特点;工频法和异频法2种不同方法得到的线路参数测试结果存在一定差异;干扰电压“时变”时,线路工频参数测试宜采用异频法。

关键词: 皖电东送, 特高压, 同塔双回, 工频参数, 测试干扰, 结果分析

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.

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