Title: Analysis of EMI on control signal line of DC power converter of electric vehicle

Authors: Tieding Li; Fenghua Liu; Zongyu An

Addresses: Power Grid Engineering Branch, Central Southern China Electric Power Design Institute of China, Power Engineering Consulting Group, No. 668, Minzhu Road, Wuchang District, Wuhan, Hubei 430071, China; Room 423, State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, University A Campus, No. 174, Shazhengjie Street, Shapingba District, Chongqing 400044, China ' Power Grid Engineering Branch, Central Southern China Electric Power Design Institute of China, Power Engineering Consulting Group, No. 668, Minzhu Road, Wuchang District, Wuhan, Hubei 430071, China; Room 423, State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, University A Campus, No. 174, Shazhengjie Street, Shapingba District, Chongqing 400044, China ' Power Grid Engineering Branch, Central Southern China Electric Power Design Institute of China, Power Engineering Consulting Group, No. 668, Minzhu Road, Wuchang District, Wuhan, Hubei 430071, China; Room 423, State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, University A Campus, No. 174, Shazhengjie Street, Shapingba District, Chongqing 400044, China

Abstract: Development of electric vehicles is promoted by the increasing problems about the severe shortage of oil resources and serious environment pollution at present. The interference produced by the new high-power electronic equipment in electric vehicles will have influence on the equipment that is attached to it, especially the effect it has on the control circuit cannot be ignored. In this paper, in the four typical working states of electric vehicles, research on the conducted interference current features on the control line of DC converter system is done, reasons for interference coupling to the control line are analysed, and the conclusion is drawn that the value of interference current on the control line in starting state and charging state is the maximum and that value decreases in high-speed state and idle-speed state.

Keywords: electric vehicles; power electronics; EMI; DC power converters; drive motors; electromagnetic compatibility; electromagnetic interference; propagation path; control signal.

DOI: 10.1504/IJEHV.2014.062802

International Journal of Electric and Hybrid Vehicles, 2014 Vol.6 No.1, pp.39 - 45

Received: 02 Oct 2013
Accepted: 19 Dec 2013
Published online: 18 Jun 2014 *

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