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Reduction of Losses in the DC Link Capacitor of Two-Stage Self-Commutated Converters
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Author(s) |
L. Sack |
Abstract |
The main part of the losses in DC link capacitors are caused by the AC current through the capacitor due to its equivalent series resistor. If a self-commutated converter consists of an input stage and an output stage, the AC current of the DC link capacitor can be reduced by synchronization of the pulse patterns of both stages. The paper describes the reduction for different converter topologies and shows this effect by experimental results for a converter with single-phase and three-phase input-stage. The advantages are the rise of life time expectancy and minimized capacity in the DC link. |
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Filename: | EPE1999 - PP00280 - Sack.pdf |
Filesize: | 186.3 KB |
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Type |
Members Only |
Date |
Last modified 2004-04-06 by System |
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