1000kV沪西站并联电容器组接线及配置分析

Wiring and Configuration Analysis of Shunt Capacitor Bank at 1000 kV Huxi Substation

通过对并联电容器组常用接线方式的比较和分析,选取单星形双桥差接线方式作为沪西站低压侧并联电容器组的接线方式。结合工程实际,分析计算沪西站并联电容器组装置主要的参数,给出了装置的整体设计方案。针对双桥差接线中桥臂内部串并联设计的两种方案,进行仿真比较,最后选择了更适合沪西站实际情况的"两并三串三支路"的方式。文章从工程建成后的运行维护角度,提出装置在变电站运维工作中需注意的问题。

The single star double bridging differential mode is selected as the wiring mode of shunt capacitor bank at low voltage side of Huxi substation through comparison and analysis of common wiring mode of shunt capacitor bank. The main parameters of shunt capacitor bank at Huxi substation are analyzed and calculated based on the reality of project and the overall design scheme of the device is given. As for two schemes of serial and shunt design inside the bridge arm of double bridge differential wiring, the simulation comparison is made and, finally, the mode of ＇two parallel three series three branch＇ which is more suitable for the actual situation of Huxi substation is selected. In this paper, the attention issues of the device in the maintenance of the substation are proposed from the point view of operation and maintenance after project construction.