1000 kV万县变电站可控高抗配置问题分析

Analysis of Controllable Shunt Reactors Configuration at 1 000 kV Wanxian Substation

特高压可控高压电抗器是解决限制过电压和无功补偿之间矛盾的有效手段之一,但是如果全部采用可控高抗,不但成本高,经济效益差,而且运行中也没有必要。结合雅安—南京北1 000 kV交流特高压工程无功配置的研究成果,通过对1 000 kV万县特高压站容性无功补偿容量不足的原因进行分析,提出优化可控高抗配置的解决思路。

Using controllable shunt reactor is an effective strategy to solve the contradiction between over-voltage limitation and reactive power compensation in UHV grid.But controllable shunt reactors used in whole stage are not only costing and poor economy but also unnecessary in operation.Based on study on YaanNanjingbei 1 000 kV AC project,and reason analysis of insufficient power compensation at 1 000 kV Wanxian substation,the paper gives out suggestions on optimization of controllable shunt reactor.