有源滤波器在不同网络中的应用分析

介绍了并联型有源滤波器对谐波抑制的作用。基于电压检测控制的并联型有源电力滤波器相当于一个有源阻尼,对谐波分量呈现出阻抗特性,除了具有抑制谐波进入电网的能力之外,还能阻尼谐波共振。将并联型有源电力滤波器应用于两种不同类型的电力线网络,然后评估其在不同类型网络结构中的滤波和阻尼共振的性能。第一种电力网为220 V配电网,第二种电力网为简化的150 k V太阳能发电网络,容量为444.4 MVA。并且使用谐波共振模态分析和计算参与因数的方法来确定有源滤波器的最佳安置位置,使有源滤波器滤波和抑制共振的效果最优。

Analysis of active power filter applications in different networks

This paper introduces the effect of shunt active power filter on harmonic suppression. The shunt active power filter based on voltage detection control corresponds to an active damping, presenting the characteristic impedance to harmonic component, in addition to restraining harmonics into the power grid, but also damping harmonic resonance. A shunt active power filter is applied to two different types of power line network and then to evaluate the performance of filter and the damping resonance in different types of the network. The first power system is a 220 V distribution network. The second simplified one is a 150 kV solar power with a capacity of 444.4 MVA. It makes sure the best location of active filter via harmonic resonance modal analysis and calculates the participation factor to make the active filter filtering and restrain the resonance work well.