Carrier-based PWM-VSI overmodulation strategies: Analysis, comparison, and design

被引：281

作者：

Hava, AM ^{[1
]}

Kerkman, RJ

Lipo, TA

机构：

[1] Yaskawa Elect Amer Inc, Northbrook, IL 60062 USA

[2] Rockwell Automat Allen Bradley, Mequon, WI 53092 USA

[3] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 1998年 / 13卷 / 04期

关键词：

current harmonics; inverter; overmodulation; voltage gain;

D O I：

10.1109/63.704136

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, the overmodulation region voltage-gain characteristics and waveform quality of carrier-based pulsewidth-modulated (PWM) methods are investigated. Through detailed analytical stud, voltage-gain characteristics are extracted independent of carrier frequency, The influence of blanking time and minimum pulsewidth (MPW) control on the inverter gain characteristics are studied and shown to be significant. A comparative evaluation of the modulator characteristics reveals the advantageous high-modulation-range characteristics of discontinuous PWM methods and, in particular, the superior overmodulation performance of a discontinuous PWM method, The modulation methods under consideration are tested on a PWM voltage-source inverter (VSI) fed induction motor drive in the laboratory, and the theoretical results are verified by experiments. Also, a gain linearization technique is presented and experimentally verified, The results of this study are useful in design, performance prediction, and development of high-performance overmodulation strategies for PWM-VSI drives.

引用

页码：674 / 689

页数：16

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