电网电容器组的谐波谐振和谐波放大的研究

在电力系统运行着大量的并联电容器组 ,由于电容器的阻抗呈现容性 ,它与电力系统中的谐波容易产生相互影响 ,发生谐波的并联谐振或串联谐振和电容器对谐波电流的放大 ,造成电容器和电气设备的损坏。因此需要研究和分析谐波对电容器的危害 ,认识电容器对谐波电流的放大作用 ,合理地配置电容器和电抗器 ,避免电气参数匹配发生谐振 ,控制其谐波电流放大。本文对此作了有益的探讨。

STUDIES ON HARMONIC RESONANCE AND HARMONIC ENLARGEMENT OF POWER NETWORK CAPACITORS BANK

Running large number of shunt capacitors bank on power system.Owing to capacitor impedance present capacitance,It with power system harmonic apt Produce influence each other,Produce harmonic shunt resonance or series resonance and capacitor for harmonic enlargement,It causes capacitor and electrical casualty.Therefore studies and analysis harmonic for harm of a capacitor,know the capacitor for harmonic current enlarges effect,reasonable disposition the capacitor and reactor,avoid electrical guantities match produce resonance, control harmonic current enlargement. The paper make Profitable discussion.