特高压换流站设备投运安全隔离策略探究

Research on Safety Isolation Strategy for the Equipment of Special High Pressure Converter Station

特高压换流站设备分期投运时容易发生安全事故,因此,必须做好隔离保护,分析交流场进行带电隔离的具体措施,在对二次设备分期投运进行安全隔离时,主要分析交流控制系统和直流阀组控制系统联锁回路情况,交流进线开关出现跳闸问题,TA回路的保护措施,无功控制回路的处理情况。

The risk of security incidents is high during start-up of the parallel ultra-high-vohage converter station equipment. So the isolation protection must be carefully performed.The following analysis of the exchange field for specific measures of live isolation in the secondary equipment put into operation for safe isolation,This paper mainly emphasize on the analysis of AC control system and DC valve control system interlock circuit,AC line switch trip problems,TA circuit protection measures, reactive power control circuit processing.