A High Frequency Equivalent Circuit and Parameter Extraction Procedure for Common Mode Choke in the EMI Filter - Archive ouverte HAL
Article Dans Une Revue IEEE Transactions on Power Electronics Année : 2013

A High Frequency Equivalent Circuit and Parameter Extraction Procedure for Common Mode Choke in the EMI Filter

Résumé

Power converters with high switching frequency generate conducted electromagnetic interference (EMI) noise. EMI filters are thus widely used to reduce these conducted noises for the compliance with electromagnetic compatibility standards. In this paper, a high frequency (HF) equivalent circuit model for common mode (CM) chokes used in EMI filters is proposed together with its parameter extraction procedure. This procedure is based on impedance measurements and it incorporates an iterative rational function approximation fitting algorithm to extract the parameters in the model. The proposed model and procedure is applied to a planar CM choke which is used to realize an EMI filter. The simulated results of the filter show good agreement with the experimental ones. This extraction procedure is quite general and it can also be extended to identify the HF model of other passive components. Index Terms-Common mode choke, electromagnetic interference filter, equivalent circuit, rational function approximation.
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Dates et versions

hal-01886770 , version 1 (03-10-2018)

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Wenhua Tan, Carlos Cuellar, Xavier Margueron, Nadir Idir. A High Frequency Equivalent Circuit and Parameter Extraction Procedure for Common Mode Choke in the EMI Filter. IEEE Transactions on Power Electronics, 2013, 28 (3), pp.1157 - 1166. ⟨10.1109/TPEL.2012.2209206⟩. ⟨hal-01886770⟩
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