A push-pull voltage source inverter with lossless snubber circuits

Author

Liu, C.Y. ; Zhu, J.G. ; Ramsden, V.S.

Author_Institution

Dept. of Electron. Eng., Inner Mongolia Univ., China

Volume

2

fYear

1999

fDate

1999

Firstpage

641

Abstract

This paper proposes a push-pull voltage source inverter with lossless snubbers. The output voltage waveform of the inverter can be modulated as either square wave or SPWM. The energy stored in the leakage inductor of the transformer can be fed back to the DC supply through the snubber circuits when main switching devices change their states. Some higher harmonics might be added to the output voltage if the snubbers are not designed properly. The operational principles and experimental results on a prototype are presented

Keywords

DC-AC power convertors; harmonic distortion; invertors; modulation; power conversion harmonics; snubbers; switching circuits; VSI; experimental results; higher harmonics; leakage inductor stored energy; lossless snubber circuits; operational principles; output voltage; output voltage waveform; push-pull voltage source inverter; sinusoidal PWM; square wave modulation; switching devices; Australia; Electrical products; Inductors; Insulated gate bipolar transistors; Prototypes; Pulse width modulation; Pulse width modulation inverters; Snubbers; Switching circuits; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 1999. PEDS '99. Proceedings of the IEEE 1999 International Conference on

Print_ISBN

0-7803-5769-8

Type

conf

DOI

10.1109/PEDS.1999.792739

Filename

792739