林少伯;王华伟;王明新;谢国平;张民;李新年;孙栩;雷霄;

• 1:中国电力科学研究院
• 2:国家电网公司

摘要(Abstract)：

针对共用接地极的高压输电系统在运行和检修过程中存在的问题,以2个直流输电系统共用接地极为例,结合实际工程参数,根据理论分析进行电流分布计算并分析了其影响因素,结果表明:接地极线路分流电流主要受共用接地极电阻、检修接地极线路电阻、检修接地位置及土壤状况等影响;另外,检修的接地极线路分流电流会进入换流站,可能会对换流变的直流偏磁产生影响,严重时会导致换流变饱和保护动作闭锁直流系统。最后,根据分析结果,对共用接地极检修时直流系统运行方式提出了建议。

关键词(KeyWords)： 直流输电;共用接地极;运行方式;接地极线路检修;直流电流分布;直流偏磁

Abstract:

Keywords:

基金项目(Foundation): 国家电网公司科技项目(XT71-14-051)~~

作者(Author): 林少伯;王华伟;王明新;谢国平;张民;李新年;孙栩;雷霄;

Email:

DOI: 10.13335/j.1000-3673.pst.2015.12.004

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