摘要
为提高单相并联型有源电力滤波器(Active Power Filters,简称APF)的补偿精度,提出了一种静止坐标系下PI和重复并联运行的电流复合控制策略,其中PI控制主要保证系统的动态性能,基于内模原理的重复控制可以显著提高APF输出电流对负载谐波电流的跟踪精度。对单相APF中的复合控制策略参数进行了设计,理论研究和实验结果表明复合控制策略可以有效提高单相APF的滤波性能,总谐波畸变率降低到3.8%,达到谐波补偿的国家标准。
In order to improve the accuracy of the harmonic compensation for the single-phase shunt active power filter（APF）,based on the stational frame,a compound control strategy which conclude the PI control and repetitive parallel is pro posed.PI control is used to guarantee the system dynamic performance,the repetitive control is to improve the output current tracking accuracy for the load harmonic current.The theoretical analysis and experimental results verify that the waveform quality is effectively improved by the strategy proposed.Total harmonic distortion（THD） is reduced to 3.8%,which is achieve the national stan-dards of harmonic compensation.
出处
《电力电子技术》
CSCD
北大核心
2010年第3期22-24,共3页
Power Electronics
基金
国家科技支撑计划资助(2007BAA12B03)~~
关键词
有源电力滤波器
单相
比例积分控制
重复控制
补偿性能
active power filter
single-phase
proportion integral control
repetitive control
compensation performance
