摘要
理论分析变电所并联补偿电容器回路的谐波放大问题,给出分析等值电路,说明在电容器回路中串联电抗器抑制谐波放大的作用。针对现场实测的某农网变电所的数据进行了谐波放大效应分析,分析得出变电所并联补偿电容器组对谐波电流有一定程度的放大,主要是5次谐波的放大。通过在并联电容器回路加装串联电抗器,并合理选择电抗值,达到了抑制谐波放大的作用。
This paper is an attempt to analyze harmonic amplification, provide the harmonic analysis equivalent electric circuit of paralleling condenser and analyze the function of the reactor and the choice of reactance rate. The harmonic state of one power station was measured on the spot. Results indicate that the chief amplification is the 5th harmonics. By means of the installed series reactor in the paralleling condenser circuit, harmonic amplification is restrained.
出处
《中国农村水利水电》
北大核心
2008年第4期133-134,共2页
China Rural Water and Hydropower
关键词
电容器
谐波电流
串联电抗器
capacitor
harmonic currents
series reactor
