PCS-9550控制保护系统阀组在线投退仿真分析

Simulation Analysis on Converter Entry and Exit Online of the PCS-9550 Control and Protection System

特高压直流输电系统采用双12脉动阀组串联的方式,在运行过程中单个阀组可能由于故障退出运行,故障处理结束后,需要在线投入阀组。在站间通信正常的情况下,可由控制系统自动协调投退过程,在站间通信故障时,需要由两站运维人员紧密配合,完成在线投退。通过RTDS仿真研究在站间通信故障的情况下,PCS-9550控制保护系统在线投退阀组的策略以及方法,分析原理及投退波形,以期为特高压运维操作及故障处理提供参考。

Double 12-pulse pulsation converters are in series in the UHV DC transmission system,and any converter may be exit or entry online due to a fault. When interstation communication is normal,the exit and entry process can be conducted automatically by the control system. When interstation communication breaks,the exit and entry process need to be completed with cooperating closely with operators. The strategy,method and waveforms of entry and exit process of the PCS-9550 control and protection system are analyzed by RTDS simulation system when the interstation communication breaks,to provide references for UHV maintenance and trouble shooting.