Control for the Three-Phase Four-Wire Four-Leg APF Based on SVPWM and Average Current Method

作     者：Li, Xiangshun Lu, Jianghua 

作者机构：Wuhan Univ Technol Sch Automat Wuhan 430070 Hubei Peoples R China 

出 版 物：《ACTIVE AND PASSIVE ELECTRONIC COMPONENTS》 (有源与无源电子元件)

年 卷 期：2015年第2015卷第1期

页      面：1-7页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：ELECTRIC power filters PULSE-width modulation SIMULATION methods & models ELECTRIC currents HARMONIC distortion (Physics) 

摘      要：A novel control method is proposed for the three-phase four-wire four-leg active power filter (APF) to realize the accurate and real-time compensation of harmonic of power system, which combines space vector pulse width modulation (SVPWM) with triangle modulation strategy. Firstly, the basic principle of the APF is briefly described. Then the harmonic and reactive currents are derived by the instantaneous reactive power theory. Finally simulation and experiment are built to verify the validity and effectiveness of the proposed method. The simulation results show that the response time for compensation is about 0.025 sec and the total harmonic distortion (THD) of the source current of phase A is reduced from 33.38% before compensation to 3.05% with APF.