A Novel PWM Technique for Three-Phase Inverter/Converter

Abstract

Various PWM techniques for three-phase power converters, such as the AC to DC converter and the DC to AC inverter, have been proposed and increasingly used with the development of the switching power devices. These are discussed separately for the types of the voltage source and the current source. This paper proposes a new PWM technique for the three-phase inverter/converter applicable to the above both types. The output characteristics of the new PWM technique are excellent in the low-order harmonic elimination and the output gain to the DC power source. In this paper, the method to obtain the switching timing, the switching pulse pattern for the each power source, the frequency spectrum and the characteristics for the PWM output waveform are described. And they are verified by the experimental results for the voltage source inverter and the current source AC to DC converter. © 1985, The Institute of Electrical Engineers of Japan. All rights reserved.