光电流互感器在舟山多端柔性直流输电工程中的应用问题分析Analysis on the Application of Optical Current Transformer in Zhoushan MultiTerminal Flexible DC Transmission Project
赵晓明,华文,吴俊,柯人观
ZHAO Xiaoming,HUA Wen,WU Jun,KE Renguan
摘要(Abstract):
介绍了舟山±200 k V多端柔性直流输电工程换流站光TA(电流互感器)配置和应用情况。通过对换流站内不控充电启动试验的波形分析,找出了光TA电流异常原因,给出了整改方案。进行了一次注流试验验证并最终通过站系统的OLT试验和STATCOM试验验证了方案的正确性。指出在柔性直流输电工程中对于光TA的测试,除了传统的精度试验外,必须增加有针对性的一次注流试验。
The paper introduces configuration and application of optical TA(current transformer) in converter station of Zhoushan ±200 k V multi-terminal flexible DC(direct current) transmission project. By waveform analysis of the non-controlled charging and startup test, the reason of abnormal TA current is detected and the rectification scheme is presented. A current injection test is conducted for verification, and the effectiveness of the scheme is verified by OLT(open line test) test and STATCOM(static synchronous compensator)test substation system. The paper indicates that t in addition to traditional precision test there must be an additional current injection test for optical TA test.
关键词(KeyWords):
多端柔性直流输电;光电流互感器;OLT试验;STATCOM试验
multi-terminal flexible DC transmission;optical current transformer;OLT test;STATCOM test
基金项目(Foundation):
作者(Author):
赵晓明,华文,吴俊,柯人观
ZHAO Xiaoming,HUA Wen,WU Jun,KE Renguan
DOI: 10.19585/j.zjdl.2015.07.006