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Minimisation of commutation delays in power converters
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| Author(s) |
M. Bland; C. Silva; P. Wheeler; L. Empringham |
| Abstract |
This paper describes a simple solution to waveform distortion problems caused by dead-time and zero
current clamping in AC power converters. With the proposed method it will be possible to safely reduce
the dead-time to an absolute minimum, making any errors caused by the dead-time negligible. The
method described can be applied to any IGBT based switching circuit where dead-time is used. The application
of the proposed method to two different types of AC converters is discussed. Practical results
are presented with the implementation of the method in a Voltage Source Inverter (VSI) and in a Matrix
Converter. The commutation processes in Matrix Converter and VSI circuits is discussed and the limits of
safe commutation are investigated. |
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| Filename: | EPE2003-PP0353 - Bland |
| Filesize: | 1.228 MB |
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| Type |
Members Only |
| Date |
Last modified 2004-01-21 by Unknown |
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