±500kV枫泾换流站交流滤波器注流试验方法

AC Filter Inflow Test Method for±500kV Fengjing Converter Station

在分析超高压直流输电系统中交流滤波器电流回路以及现有调试方法的基础上,针对±800kV奉贤换流站中采用单个电流互感器逐个注入大电流的方法,无法避免调试死区和试验耗时长的问题,提出了一种利用试验线跨接一次设备的通电试验方法,改进了直流换流站滤波器组电流回路的调试方法,从而减轻了调试人员的工作强度并缩短调试工期。在±500kV枫泾换流站现场试验结果证实这种方法行之有效。

This paper analyzes the debugging method for AC filter circuit in UHVDC transmission system,then apower-on test method by connecting primary device via test wire is proposed for the existing method in±800kV Fengxian converter station is to input large current into single current transformer individually,resulting in the failure to avoid debugging dead zone as well as long test time.This new method can improve the debugging method for filter group current loop of DC converter station,so as to lessen the work burden of the debugging personnel and shorten debugging period.This method has been proved effective at the on-site test in the＋500kV Fengjing converter station.