Modeling Strategy for EMI Filters
Performance of electromagnetic interference (EMI) filters in power-electronics applications is limited by the parasitic coupling between the components of the filters and the self-parasitic of each component. While these parasitic effects can be partially taken into account on the circuit level, it is difficult to estimate their values. In this article, a full-wave modeling methodology is proposed to predict the performance of a complete EMI filter up to 1 GHz. Following the proposed methodology, the mutual couplings among the EMI filter components are taken into account as well as the self-parasitics of each individual component. Experiments and simulations are carried out to validate the modeling methodology. A self-parasitic cancellation technique is also applied to demonstrate the benefits of three-dimensional modeling methodology in EMI filter design.
R. He and Y. Xu and S. Walunj and S. Yong and V. Khilkevich and D. Pommerenke and H. L. Aichele and M. Boettcher and P. Hillenbrand and A. Klaedtke, "Modeling Strategy for EMI Filters," IEEE Transactions on Electromagnetic Compatibility, vol. 62, no. 4, pp. 1572-1581, Institute of Electrical and Electronics Engineers (IEEE), Jul 2020.
The definitive version is available at https://doi.org/10.1109/TEMC.2020.3006127
Electrical and Computer Engineering
Keywords and Phrases
Common-Mode Choke (CMC); EMI Filter; Film Capacitor; Full-Wave Modeling; Mutual Coupling
International Standard Serial Number (ISSN)
Article - Journal
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13 Jul 2020