基于录波识别的直流阀区故障快速定位方法研究

介绍了特高压直流工程阀区的典型设计,借助RTDS实时数字仿真平台,对阀区故障进行了大量的仿真分析,找出了一套基于录波识别的故障快速定位方法。实例分析表明,该方法能有效缩短故障分析与定位的时间。同时指出了当前电流互感器配置的缺点,即一定情况下不能区分出故障发生在哪个阀组,由此提出了一种电流互感器配置与保护优化思路。

Research on Fast Fault Location Method of HVDC Valve Area Based on Wave Recording Recognition

Typical design of valve area in UHVDC project is introduced.With the help of RTDS real-time digital simulation platform,a lot of simulation analysis of valve area fault is carried out,and a fast fault location method based on recorder recognition is found out.Case study shows that this method can effectively shorten the time of fault analysis and location.At the same time,the disadvantage of current transformer configuration is pointed out,that is,under certain circumstances,it is impossible to distinguish which valve group the fault occurs,so an optimization idea of current transformer configuration and protection is proposed.