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

被引：679

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

页码：242 / 249

页数：8

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