A novel PWM strategy to minimize the surge voltage for current-source converters

Author

Matsui, Keiju ; Yamaguchi, Tadashi ; Takase, Shinichi ; Yang, Yue

Author_Institution

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

Volume

34

Issue

3

fYear

1998

Firstpage

501

Lastpage

507

Abstract

This paper presents a novel technique of pulsewidth modulation (PWM) wave control to minimize the surge voltage at the turn-off of switching devices. Two kinds of sawtooth carriers with different hypotenuses are employed to obtain a PWM waveform with minimum surge voltage, where each sawtooth carrier appears alternately at every 60° interval relative to the sinusoidal wave cycle. It is difficult to analyze the output waveforms because they are complicated. In order to obtain the analytical result, a frequency analysis approach using a switching function is proposed the results of which are verified experimentally

Keywords

PWM power convertors; harmonic distortion; minimisation; power system harmonics; surges; switching circuits; waveform analysis; PWM strategy; current-source power converters; frequency analysis approach; output waveforms analysis; pulsewidth modulation waveform control; sawtooth carriers; sinusoidal wave cycle; surge voltage minimisation; switching device turn-off; switching function; Circuits; Frequency; Harmonic analysis; Power semiconductor switches; Power system harmonics; Pulse width modulation; Pulse width modulation converters; Surges; Switching converters; Voltage control;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.673720

Filename

673720