Three-phase pulse-amplitude and width-modulated inverter system
- 1 January 1981
- journal article
- Published by Institution of Engineering and Technology (IET) in IEE Proceedings B Electric Power Applications
- Vol. 128 (3) , 167-171
- https://doi.org/10.1049/ip-b.1981.0023
Abstract
The proposed 3-phase stepped wave inverter is based on a new method of controlling the double bridge inverter. The control of individual bridges is programmed to yield a stepped voltage waveform with six steps per quarter cycle and a total harmonic distortion of 7.75%. When voltage control is introduced, the proposed pulse-amplitude and width-modulated inverter has predominant harmonics of the 23rd and 25th. The scheme utilises a small number of thyristor power switches operated at low commutation frequency. The results have been experimentally verified.Keywords
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