IMPROVEMENT OF INPUT POWER-FACTOR IN AC CHOPPERS USING ASYMMETRICAL PWM TECHNIQUE

被引：25

作者：

JANG, DH

CHOE, GH

机构：

[1] Department of Electrical Engineering, Hoseo University

[2] Department of Electrical Engineering, Konkuk University

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 1995年 / 42卷 / 02期

关键词：

D O I：

10.1109/41.370384

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Asymmetrical pulse width modulated (APWM) control technique for the ac choppers is proposed to improve the input power factor. The switching function for the proposed technique is derived and hence converted into the symmetrical PWM waveform for practical implementation of an ac chopper. Through digital simulation several characteristics are investigated theoretically and then compared with those of the conventional PWM control technique. The proposed strategy is simplified to an approximate APWM which can be realized by the analog circuit. Practical verification of the theoretical predictions is presented to conform the capabilities of the proposed technique.

引用

页码：179 / 185

页数：7

共 10 条

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