As a key component of UHVDC transmission engineering,AC filters play a role in regulating voltage and providing reactive power compensation,and their safe and stable operation is crucial. In view of the unbalance protection of the AC filter bank of a converter station,the unbalance abnormality of the AC filter C1 capacitor of the AC filter is analyzed by introducing the configuration of the AC filter of the station and combining the distribution characteristics of the fault current. In order to improve the fault handling efficiency of field operation and maintenance personnel,a kind of positioning method of fault capacitor bank is proposed,which can accurately locate the 1/6 area of the double H bridge,has solved the fault location problem of unbalance protection of the capacitor bank and has practical reference value for the reliable operation of the UHV converter station.
关键词
交流滤波器/无功补偿/不平衡保护/故障定位
Key words
AC filter/reactive power compensation/unbalance protection/fault localization
维普
万方数据