补偿电压型谐波源的混合型APF研究  

Hybrid active power filter compensating voltage harmonic source

作　　者：许彦[1] 王波[1] 杨林莉[1] 李德路[1] 

机构地区：[1]中国矿业大学信电学院,江苏徐州221008

出　　处：《电测与仪表》2008年第10期7-10,共4页Electrical Measurement & Instrumentation

摘　　要：串联型APF适合于补偿电压型谐波源,但其变压器体积大、绝缘水平高,且控制增益的最优值选择困难。为补偿电压型谐波源,本文提出了一种由并联型APF和电感电容构成的混合型APF。其中电感电容串联在电网与谐波源之间并谐振于工频,实现了对基波电流的无衰减传播和对谐波电流的高阻抗隔离;进入电网的残余谐波电流以及由于参数波动引起的基波电流损失由并联型APF补偿。理论分析与仿真结果表明:该混合型APF的控制方式简单,经济性和补偿效果均好于串联型APF,应用前景广阔。Series active power filter is fit to compensate voltage harmonic source, but its transformer eapaeity is very large and its insulation level is high, and the selection of optimal control gain is difficult. In order to compensate voltage harmonic source, the paper presents a hybrid active power filter which is composed of parallel active power filter, inductor and capacitor. The inductor and capacitor series between the grid and harmonic voltage, and resonate in 50Hz, make the fundamental current spread un-attenuated, make harmonic current high resistance isolated. The parallel APF compensates the remained harmonic current and fundamental current losses. The theory analysis and simulation results indicate： the control mode of the hybrid active power filter is simple, the performance is better than Series active power filter, and can be applied in the industry.

关 键 词：串联型APF 电压型谐波源 混合型APF 基波电流损失 

分 类 号：TM933[电气工程—电力电子与电力传动]