10kV电容器谐波放大的分析与仿真

Analysis and Simulation of Harmonics Amplification in 10kV Capacitor

随着非线性负荷的逐年增加,电力系统谐波污染越来越严重,引起谐波电流的放大,导致电容器谐波过载,缩短使用寿命,甚至损坏,危及电力系统正常运行和电气设备的安全。分析了一起电容器损坏的原因,并给出了治理方案,在PSCAD上的仿真结果验证了理论分析的正确性。

With the increasing of non-linear load every single year,harmonics pollution in power system is becoming increasingly serious.It has some influence on reactive compensation capacitor,including the harmonics current increase,harmonic over-load,short life and damage indeed,which will endanger the safe operation of the electricity equipment and the power system.This paper analyzes the cause of one capacitor damage and proposes the treatment scheme.The correctness of theory analysis is validated by PSCAD.