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Bidirectional Active EMC Filter for Industrial Power Converters
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| Author(s) |
Bernhard WUNSCH |
| Abstract |
Size and cost of EMC filters of power converters can be reduced using active circuits. In this work wedemonstrate the filter performance of a bidirectional active EMC filter in an industrial 75kW powerconverter driving a motor. The active filter is bidirectional since it suppresses EMC noise on eitherside of the filter. The voltage noise source on the grid side stems from magnetic coupling betweeninput and output of the converter. For a purely passive EMC filter, grid side noise needs to be filteredby large inductors. We show that the active filter which is based on current sensing and currentinjection strongly reduces the magnetic filter components required. |
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| Filename: | 0465-epe2022-full-11063688.pdf |
| Filesize: | 628.4 KB |
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| Type |
Members Only |
| Date |
Last modified 2023-09-24 by System |
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