银川东换流站中开关连锁逻辑的改进

针对银川东换流站现有的中开关连锁逻辑存在的问题进行了分析,提出了2种解决方案,分析结果表明:虽然闭锁中开关重合闸方式简单可靠,但是无法克服线路侧边开关偷跳问题,而采用母线侧边断路器分相位置开入方式即可解决银川东换流站中开关连锁逻辑存在的问题。

Improvement of intermediate switch interlocking logic for Yinchuan Eastern Converter station

Analyzes existing problem of present intermediate switch interlocking logic in Yinchuan Eastern Converting Plant, puts forward two kinds of solution schemes.The analysis results show that even if the way of blocking intermediate switch reclosing is simple and reliable, there is no way to overcome the problem of line side switch stealthily tripping. Instead, using the way of bus side circuit breaker phase splitting position connection can solve the existing problem of intermediate switch interlocking logic in Yinchuan Eastern Converting Plant.