一起直流线路故障后的再启动过程分析

Analysis of Restart Process After a DC Line Fault

在直流输电系统中,直流线路的瞬时故障会导致直流线路的再启动。针对某直流系统中的一起直流线路故障,通过回顾其故障过程,分析突变量保护原理和直流线路再启动逻辑,结合故障录波对直流线路故障后的再启动过程进行了探讨,并对故障类型作出了判断。

In the DC transmission system,the instantaneous failure of the DC line will cause the DC line to restart.For a DC line fault in a DC system,by reviewing its fault process,analyzing the principle of sudden change protection and DC line restart logic,combined with fault recording,the restart process after the DC line fault is analyzed,and the fault type is judged.