摘要
介绍一起工频交流串入直流系统引起500 kV断路器跳闸事件,通过模拟试验与matlab仿真分析,分析了交流串入直流系统造成出口继电器动作的影响因素。针对变电站扩建和检修预试间隔直流支路,设计了快速隔离交流与直流系统的装置。
This paper introduces a 500 kV circuit breaker trip event, which caused by AC flows into DC system. Through simulating field test and matlab simulation, this paper analyses the impact factors of export relay operation caused by AC flows into DC. Also, for substation expansion and maintenance pre-test interval, it designs a device which isolates AC and DC system rapidly.
出处
《山东电力技术》
2013年第4期48-51,共4页
Shandong Electric Power
