A comprehensive study of neutral-point voltage balancing problem in three-level neutral-point-clamped voltage source PWM inverters

被引：667
|
作者：
Celanovic, N [1 ]
Boroyevich, D [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, Dept Elect & Comp Engn, Blacksburg, VA 24061 USA
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2000年 / 15卷 / 02期
关键词：
neutral-point voltage balancing; space vector modulation; three-level converter;
D O I：
10.1109/63.838096
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：
This paper explores the, fundamental limitations of neutral-point voltage balancing problem for different loading conditions of three-level voltage source inverters. A new model in DQ coordinate frame utilizing current switching functions is developed as a means to investigate theoretical limitations and to offer a more intuitive insight into the problem. The low-frequency ripple of the neutral point caused by certain loading conditions is reported and quantified.
引用
收藏
页码：242 / 249
页数：8
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