A new approach to enhance power quality for medium voltage AC drives

被引：562

作者：

Hammond, PW

机构：

[1] Robicon Corp., Pittsburgh

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 1997年 / 33卷 / 01期

关键词：

harmonic cancellation; medium-voltage drive; motor-friendly drive; multilevel PWM; power-quality drive; series converters;

D O I：

10.1109/28.567113

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new approach to medium-voltage variable-frequency static ac drives offers improvements in power quality. Harmonic current injection into the power lines is below the most severe requirements of IEEE Standard 519-1992, The power factor of this new type of drive exceeds 94% at full load and is above 90% at 10% load. Motor voltage and current waveforms are improved so that torque pulsations are reduced, peak voltage stress on motor insulation does not exceed peak input line voltage, and no zero sequence voltage is imposed, Drive efficiency exceeds 96%. This paper describes the new approach and some of the results achieved.

引用

页码：202 / 208

页数：7