摘要
随着西电东送规模的扩大,国内将建设越来越多的换流站,共用接地极很有必要性。介绍了国内第1个高压直流输电共用接地极体工程;通过相关公式,分析出正常额定入地电流值对接地极体工程造价影响最大,是共用接地极的最主要设计参数;提出选择主要设计参数需综合考虑共用接地极的工程造价、环境影响、安全运行要求等。共用部分接地极线路具有经济性和社会意义,技术问题得到解决后,可考虑采用共用接地极线路的方式。
With the expansion of the scope of power transmission from west China to east China, more and more converter stations will be constructed in China and to share earth electrodes is necessary. The first HVDC common earth electrode was introduced in this paper. According to some correlative calculation formulae, the rating of feed current into earth influences mostly on the engineering costs of the earth electrode and it is the most pivotal design parameter. Selection of those pivotal design parameters must be taken engineering costs of the earth electrode, the environment and the demand for safe function into all-around account. Sharing some lines has good meaning in economy and society, but some problems on the technique exist. When solutions will be found to solve those problems, the mode to share some lines should be adopted.
出处
《中国电力》
CSCD
北大核心
2007年第6期48-50,共3页
Electric Power
关键词
直流输电
共用接地极
设计原则
DC transmission
common earth electrode
design fundamental
