A voltage source three phase PWM converter with chopper circuit

Author

Matsui, Keiju ; Katayama, Tomohiro ; Takase, Shinichi ; Yang, Yue

Author_Institution

Dept. of Electr. Eng., Chubu Univ., Kasugai, Japan

Volume

2

fYear

1997

fDate

3-6 Aug 1997

Firstpage

765

Abstract

This paper presents a novel strategy of a PWM power converter to control output voltage using a chopper circuit. Voltage source PWM converters are unsuitable for general purposes with wide adjustable voltage range. However, the surge voltage at switching becomes small and the input current waveforms have low harmonics and less resonant oscillations as compared with the current source power converters. In this circuit, the input current waveform is controlled by the PWM power converter with the fixed optimum voltage modulation factor and the output voltage amplitude is adjusted by the chopper circuit with very fast response and precise control. The results are verified by experiments. Finally, a control scheme for application to an AC motor drive is presented and discussed

Keywords

AC-AC power convertors; PWM power convertors; choppers (circuits); harmonic distortion; power system harmonics; voltage control; AC motor drive; chopper circuit; input current waveform harmonics; optimum voltage modulation factor; output voltage amplitude; resonant oscillations; voltage-source three-phase PWM AC-AC power converter; Amplitude modulation; Choppers; Circuits; Power system harmonics; Pulse width modulation; Pulse width modulation converters; Resonance; Surges; Switching converters; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference - Nagaoka 1997., Proceedings of the

Conference_Location

Nagaoka

Print_ISBN

0-7803-3823-5

Type

conf

DOI

10.1109/PCCON.1997.638312

Filename

638312