A randomized voltage vector switching scheme for three-level power inverters

被引：21
|
作者：
Lee, CK [1 ]
Hui, SYR
Chung, HSH
Shrivastava, Y
机构：
[1] City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
[2] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2002年 / 17卷 / 01期
基金：
澳大利亚研究理事会;
关键词：
random PWM methods; space vector control; three-level inverters;
D O I：
10.1109/63.988674
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：
In this paper, a feasibility study of a randomized space vector switching scheme for three-level inverters is reported. Based on the traditional space vector concept for pulse width modulation (PWM) inverter, the sequence of the space vector is randomized in this scheme. The overall vector, resulting from the randomization, is mathematically identical to that of the traditional space vector. It has been found that the randomized scheme can effectively spread the switching noise over a wide frequency range and at the same time keep the steady-state link capacitor voltage balanced. The proposed scheme has been implemented in real time in a digital controller and its features have been experimentally confirmed.
引用
收藏
页码：94 / 100
页数：7
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