有源电力滤波器谐波及无功电流的检测方法

The Detect Method of Harmonic and Reactive Current for Active Power Filter

有源电力滤波器控制的第一个环节就是补偿电流指令的获取,这一环节将直接影响有源电力滤波器的性能,因为如果不能准确地得到指令信号,电流的控制将无从谈起。计算补偿电流指令信号,首先必须根据补偿目的将谐波和无功电流分量进行分离,然后通过运算得到补偿电流指令信号。经过多年的发展,现在已经出现了多种的检测方法,本文针对不同的方法进行了详细的概括和综述。

The first step of active power filter control is obtaining compensation current instruction,this step will directly impress the performance of active power filter(APF) ,if we cannot precisely obtain compensation instruction signal,the current control will be impossible . First we must decouple the component of harmonic and reactive current according to compensation goal,then get compensation instruction signal through mathematics calculation. Now many detect methods have appeared though latest years,this pa...