合理选择串联补偿装置安装位置

Research on selecting the location of series compensation

为提供合理选择串联补偿装置(简称串补)安装位置的理论依据,采用理论分析与电磁暂态仿真计算相结合的方法,综合分析串补安装位置与潜供电流、沿线电压分布、串补补偿有效性及金属氧化物变阻器(MOV)容量等方面的关系。串补位置对线路潜供电流、沿线电压分布有一定的影响,需要在工程论证阶段重点考虑,但对MOV容量影响不大。串补位置对补偿线路电抗的有效性方面有一定的影响,线路距离越长,影响越大。

In order to provide the theoretics to choose the location where the series compensation to be fixed, the relationship between the different location of series compensation （SC） and the secondary arc currents, voltage profile of transmission line, compensative effectiveness of SC and capacity of MOV were presented. The different location of SC affects the secondary arc currents and the voltage profile of transmis- sion line, this should be paid attention to in some projects. But the location of SC doesn ＇ t almost affect the capacity of MOV. The compensative effectiveness of SC is affected by the location of SC. The longer the length of the transmission line is, the greater the difference of effectiveness is.