A Multicarrier PWM for Parallel Three-Phase Active Front-End Converters

被引：76
|
作者：
Hou, Chung-Chuan [1 ]
机构：
[1] Chung Hua Univ Hsinchu, Dept Elect Engn, Hsinchu 300, Taiwan
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2013年 / 28卷 / 06期
关键词：
Active front-end (AFE) converters; circulating current; multicarrier pulse width modulation (PWM); COMMON-MODE VOLTAGE; INVERTER CONTROL; CURRENTS;
D O I：
10.1109/TPEL.2012.2220860
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The use of parallel three-phase active front-end (AFE) converters has become more popular due to their simplicity, low cost, and expandability. However, the pulse width modulation (PWM) switching of parallel three-phase AFE converters causes circulating current. The circulating current is mainly affected by the zero vectors of each PWM cycle. This study proposes a multicarrier PWM for parallel three-phase AFE converters. The multicarrier PWM can synthesize the desired output voltage without using zero vectors. Therefore, the circulating current between parallel three-phase AFE converters will be suppressed by the multicarrier PWM scheme. Furthermore, the common mode voltage of a three-phase AFE converter is reduced by the multicarrier PWM scheme. Simulation and test results are presented to validate the performances of the proposed multicarrier PWM for parallel three-phase AFE converters.
引用
收藏
页码：2753 / 2759
页数：7
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