技术简介

原理：有源滤波器直接并联在电网节点上，通过检测接入点的谐波电压并按电压检测算法计算得到相应的电流指令，按指令值控制有源滤波器变流器输出补偿电流来削弱接入点的谐波电压，从而使接入点及邻近区域的谐波电压得到改善。

Introduction

Principle: The active filter is directly connected in parallel to the power grid node. By detecting the harmonicvoltage of the access point and calculating according to the voltage detection algorithm, the correspondingcurrent instruction is obtained, and the output compensation current of the active filter converter is controlledaccording to the instruction value to weaken the harmonic voltage of the access point, thus improving theharmonic voltage of the access point and adiacent areas.