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A LOW LOSS MATRIX CONVERTER FOR AC VARIABLE-SPEED DRIVES
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| Author(s) |
P. W. Wheeler; D. A. Grant |
| Abstract |
This paper reports the construction and testing of a matrix converter in which novel switching methods are employed to minimise the losses in the switching devices. A mixture of hard and soft commutation is used during each cycle of the output waveform. This permits losses to be reduced to a minimum while waveform quality is enhanced. It is demonstrated that at elevated switching frequencies the efficiency of a matrix converter can be comparable to that of the traditional inverter drives. IGBTs are used as the switching devices and a microcontroller is used to generate the switching waveforms and provide control. Reactive components have been minimised so that the matrix converter is now approaching an all-silicon solution to ac-ac power conversion. Practical results are presented. |
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| Filename: | Unnamed file |
| Filesize: | 2.864 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-05-07 by System |
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