换流站直流控制保护系统隐患排查分析

Analysis and investigation of hidden dangers in dc control and protection system of converter station

以向家坝—上海直流输电工程直流主接线及其受端换流站奉贤站为例,分析了换流站的控制保护系统总体结构,并对换流站直流保护系统的测量回路、控制系统、保护系统存在的典型隐患提出了相应的改进措施,以确保直流输电系统安全稳定运行。

Taking the dc main wiring of Xiangjiaba- Shanghai de transmission project and its converter station, Fengxian Station,at the receiving end as an example, this paper analyzes the general structure of the control and protection system, and proposes relative relevant improvement measures to solve the hidden dangers in three parts of the system, which are measuring circuit, control system and protection system. By these measures, the safe and stable operation of dc transmission system is guaranteed.