An Improved PWM Technique for AC Choppers

被引：63

作者：

Choe, Gyu-Ha ^{[1
]}

Wallace, Alan K. ^{[1
]}

Park, Min-Ho ^{[2
]}

机构：

[1] Oregon State Univ, Dept Elect & Comp Engn, Corvallis, OR 97331 USA

[2] Seoul Natl Univ, Seoul 151, South Korea

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 1989年 / 4卷 / 04期

关键词：

Electric Converters - Electric Waveforms - Mathematical Techniques--Difference Equations - Pulse Width Modulation;

D O I：

10.1109/63.41778

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：

A new pulsewidth modulated (PWM) control technique for ac choppers is proposed that has the advantages of enabling linear control of the fundamental component of the output voltage and complete elimination of its harmonics up to a specified order. Theoretical comparisons are made with other basic PWM techniques and the computed performance indicates the superiority of the new method. The carrier wave required for the new technique is easily determined as a modification of a basic triangular wave. This newly modified triangular wave enables the beneficial features to be obtained over the full range of the chopper operation and can be implemented by storage of relatively simple control equations. Practical verification of the theoretical predictions is presented to support the claims of the capabilities of the new technique.

引用

页码：496 / 505

页数：10

共 9 条

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