Advanced EMI input filtering for an industrial power supply with a resonant stage

Different EMI filters have been designed for an industrial power electronic converter system and a study on the performance of these different input filter topologies has been performed. Based on one filter topology a study on the influence of the orientation and direction of the windings on the CM chokes and the resulting coupling between two CM chokes as well as with the X capacitors has been performed. This study has shown a large dependency of the filter effectiveness on the CM chokes winding orientation and direction, both for DM and CM noise. This dependency is due to the varying inductive coupling between the two CM chokes as well as between the CM chokes and the ESL of the X capacitors. Also a study of one filter employing an LC band-rejection network to filter the resonant converter switching frequency has been performed.

Published in:
2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 458-464
Presented at:
2012 IEEE Applied Power Electronics Conference and Exposition - APEC 2012, Orlando, FL, USA, 5-9 02 2012

Note: The status of this file is: EPFL only

 Record created 2014-04-10, last modified 2018-03-17

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