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Over-voltage problems of diode-clamped converters during switchings
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| Author(s) |
P. Bartholomeüs; P. Le Moigne; J.B. Akoe Mba |
| Abstract |
This paper presents a switching cell for high voltage applications based on a
generalized diode-clamped converter. The concept and the working principle are presented. Thanks to
the association of a low power diode network and a particular switching sequence, it allows for a
dynamic equalization of the transistor voltages. A prototype (1000V/20A) has been developed in
order to study the dynamic behaviour during the transistor switching. Experimental results highlight
several over-voltage problems during the ON-Switching of the transistors. These problems have been
analyzed. Simulations and experimentations have allowed us to determine the origin of these overvoltages. |
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| Filename: | EPE2003-PP0776 - Bartholomeus |
| Filesize: | 372.9 KB |
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| Type |
Members Only |
| Date |
Last modified 2003-10-23 by Unknown |
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