一种新颖的应用于三相四线有源电力滤波器的混合电流控制方法

山东大学学报(工学版)

一种新颖的应用于三相四线有源电力滤波器的混合电流控制方法

刘海春，谢少军，王国凤

南京航空航天大学自动化学院，江苏南京210016

收稿日期:2007-09-22 修回日期:1900-01-01 出版日期:2007-12-24 发布日期:2007-12-24
通讯作者: 刘海春

A novel hybrid current control method applied in threephase four leg APF

LIU Hai-chun,XIE Shao-jun,WANG Guo-feng

College of Automation Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing 210016,China

Received:2007-09-22 Revised:1900-01-01 Online:2007-12-24 Published:2007-12-24
Contact: LIU Hai-chun

摘要/Abstract

摘要： 通过对三相四桥臂有源滤波器电路(APF)的分析，指出其主功率桥臂的电流控制与中线电流控制是相互独立的.提出了一种新颖的混合控制方法，即三相主功率桥臂的电流控制采用空间矢量调制（SVM），而中线桥臂输出电流的控制则采用滞环控制.该方法将四桥臂的电流控制分解为三相相电流控制和中线电流控制，从而大大简化了APF的电流控制过程.较之于其他的电流控制方案，该方法运算量小，具有控制简单、容易实现等优点.仿真结果证实了该方案的正确性.

关键词: 有源电力滤波器, 混合控制, SVM, 滞环控制

Abstract: Based on the analysis of circuit of threephase fourleg APF, conclusion was put forth, which means that the current control of three power legs is independent from the neutral leg. A novel hybrid control method was presented. SVM was used to control the output current of three main power legs, while hysteresis current control was applied to control the output current of neutral leg. As a result, current control of four legs was decomposed into the control of three main power legs and the control of neutral leg, which can sharply simplify the current control of APF. Compared with other current control methods, this new method has advantages such as easy to calculate, control and realize. The simulation results proves the correctness of this method.

Key words: APF, hybrid control, SVM, hysteresis current control

中图分类号:

TM-46

刘海春,谢少军,王国凤 . 一种新颖的应用于三相四线有源电力滤波器的混合电流控制方法[J]. 山东大学学报(工学版), 2007, 37(6): 10-14 .

LIU Hai-chun,XIE Shao-jun,WANG Guo-feng . A novel hybrid current control method applied in threephase four leg APF[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2007, 37(6): 10-14 .

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