摘要
柔性直流输电系统的接地设计是确定柔性直流系统方案的重要内容,本文针对基于模块化多电平换流器的柔性直流输电系统,分别介绍了对称单极接线和对称双极接线两种方式下的常用接地形式,分析了各接地形式的原理和特点;同时,分析了柔性直流换流站站内接地网的特殊要求和相应设计方法,为柔性直流换流站的接地方案设计提供了参考。
The grounding scheme is very important for the design of the flexible DC converter station.In this paper,the grounding schemes for the MMC-based VSC-HVDC systems are introduced,which include the symmetric single pole grounding systems and the symmetric bi-polar grounding systems.And the characteristics and applicability of various grounding schemes are analyzed.The design methods of the grounding grid in the flexible DC converter station are also introduced,especially the difference of design methods between the VSC-HVDC station and the AC substation.The schemes can provide help for the design of the grounding scheme of the flexible DC converter station.
作者
刘情新
刘森
张志鹏
LIU Qingxin;LIU Sen;ZHANG Zhipeng(POWER CHINA Hebei Electric Power Design&Research Institute Co.,Ltd.,Shijiazhuang 050031,China)
出处
《河北电力技术》
2019年第5期42-45,共4页
Hebei Electric Power
关键词
柔性直流
换流站
接地
设计
flexible DC
converter station
grounding
designing
