500kV串补平台故障保护动作原因分析及解决措施

Analysis of 500 kV Series Compensation Platform Fault Protection Action and Its Solution

在阐述串补装置平台故障保护原理的基础上,分析了一起由于保护采样回路元件损坏导致平台故障保护动作的原因,并进行了验证试验,指出了现有保护采样数据传输方式、逻辑存在的问题,有针对性地提出改进采样数字传输方式和修改保护逻辑的措施。

The principle of series compensation platform fault protection is presented.The reason of platform fault protection action resulted from fault sample element is presented.The exiting platform fault protection has problems at the respects of sample data transmission mode and the logic of protection.Corresponding improved solutions are put forward for improving digital transmission mode modifying protection logic.