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Chinese Journal of Electrical Engineering 2022, 8(4): 52-60 https://doi.org/10.23919/CJEE.2022.000038
Open Access | Issue | Published: 31 December 2022

Hybrid Common-mode EMI Filter Design for Electric Vehicle Traction Inverters

Show Author's Information Yongjie Han1,  Zhihong Wu1,  Deliang Wu2( )
School of Automotive Studies, Tongji University, Shanghai 200092, China
School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
Keywords:
Active EMI filter, hybrid EMI filter, common-mode EMI, traction inverter
Cite this article:
Han Y, Wu Z, Wu D. Hybrid Common-mode EMI Filter Design for Electric Vehicle Traction Inverters. Chinese Journal of Electrical Engineering, 2022, 8(4): 52-60. https://doi.org/10.23919/CJEE.2022.000038
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Abstract Full text About this article

A feedforward current-sense current-compensation (CSCC) active EMI filter (AEF) for the direct current-side common-mode (CM) electromagnetic interference (EMI) suppression of high-power electric vehicle traction inverters is analyzed and designed. A detailed design of the components with formulas is provided based on an analysis of the CSCC AEF, including the CSCC AEF topology and its implementation. The feedforward active filter stage was implemented using a simple current transformer and a small circuit board. Only a small passive filter with a high resonant frequency is required for high-frequency noise attenuation. The filter’s effectiveness was validated using the simulation results and experimental measurements.


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About this article

Hybrid Common-mode EMI Filter Design for Electric Vehicle Traction Inverters

Show Author's information Yongjie Han1, Zhihong Wu1, Deliang Wu2( )
School of Automotive Studies, Tongji University, Shanghai 200092, China
School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China

Abstract

A feedforward current-sense current-compensation (CSCC) active EMI filter (AEF) for the direct current-side common-mode (CM) electromagnetic interference (EMI) suppression of high-power electric vehicle traction inverters is analyzed and designed. A detailed design of the components with formulas is provided based on an analysis of the CSCC AEF, including the CSCC AEF topology and its implementation. The feedforward active filter stage was implemented using a simple current transformer and a small circuit board. Only a small passive filter with a high resonant frequency is required for high-frequency noise attenuation. The filter’s effectiveness was validated using the simulation results and experimental measurements.

Keywords: Active EMI filter, hybrid EMI filter, common-mode EMI, traction inverter

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Received: 16 April 2022
Revised: 08 August 2022
Accepted: 07 September 2022
Published: 31 December 2022
Issue date: December 2022

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