低压阻抗型无功补偿与谐波滤波装置及应用

Impedance Type Reactive Power Compensator and Harmonic Filter Device Used in LV-grids and its Application

从GB/T 26870-2011《滤波器和并联电容器在受谐波影响的工业交流电网中的应用》出发,利用仿真实例分析阻抗型无功补偿与谐波滤波装置的原理和功能异同,及其在低压系统应用中应该注意的问题。在谐波电流发生量较小或谐波电流注入系统引起的谐波电压不超标的低压系统,建议采用失谐滤波器;反之,则建议采用调谐滤波器治理低压系统的谐波和无功问题。

The principle and function of the impedance type reactive power compensator and harmonic filter device is analyzed based on the GB/T 26870-2011 Industrial a.c. networks affected by harmonics - Application of filters and shunt capacitors and a simulation examples. The problem of impedance type reactive power compensator and harmonic filter device application in LV-grids should be noted. The detuned harmonic filter is recommended to use in the LV-grids which has little amount of harmonic currents occurred or the harmonic voltage caused by harmonic current is not exceeded. On the contrary, the tuned harmonic filter is recommended to use for control the problem of harmonic and reactive power in LV-grids.