电网技术Issue(5)：1162-1168,7.DOI:10.13335/j.1000-3673.pst.2014.05.006
邻近线路对皖电东送特高压线路工频参数测试的影响
Influence of Adjacent Transmission Lines on Power Frequency Parameter Measurement for Anhui-to-East UHV Transmission Line
摘要
Abstract
Distribution of the transmission lines neighboring 1000 kV Anhui-to-East ultra high voltage (UHV) power transmission lines were surveyed. Calculation method of the voltage on UHV line induced by the adjacent transmission lines was put forward. The influence law of soil resistivity and parallelly approaching distance on the induced voltage occurring on AC lines were analyzed. The voltage of UHV line induced by the adjacent transmission lines was obtained through numerical simulation, and compared with the field test results. Results show that, many ±800 kV, ±500 kV DC and 500 kV AC transmission lines across from or are in parallel with Anhui-to-East UHV AC power transmission lines. Both capacitive induced voltage and inductive induced voltage of UHV transmission lines decrease with the increase of parallelly approaching distance, and the capacitive induction voltage decrease faster than the inductive induced voltage. The variation of soil resistivity has little effect on the capacitive induced voltage of UHV AC line, and the inductive induced voltage increases with the increase of soil resistivity. Field test results showed that the induced voltage of UHV AC line has characteristics of great electrostatic induced voltage and comparatively little electromagnetic induced voltage.关键词
皖电东送/特高压/同塔双回/工频参数/测试干扰/感应电压Key words
Anhui-to-East power transmission/ultra high voltage/double-circuit line on same tower/power frequency parameter/measurement interference/induced voltage分类
信息技术与安全科学引用本文复制引用
王少华,胡文堂,邹国平,吴尊东,李思南,孙正竹..邻近线路对皖电东送特高压线路工频参数测试的影响[J].电网技术,2014,(5):1162-1168,7.基金项目
国家电网公司科技项目(SGJLJSFW[2013]494)。Project Supported by Science and Technology Foundation of SGCC (SGJLJSFW[2013]494)． （SGJLJSFW[2013]494）
