Title: EMI characteristics and noise control methods of a DC/DC converter in electric vehicle

Authors: Cunxue Wu; Xu Li; Qian Zhang; Zhongming Xu

Addresses: College of Automotive Engineering, Chongqing University, Chongqing 40044, China; China Chang'an Automotive Engineering Institute, Chongqing 401120, China ' China Chang'an Automotive Engineering Institute, Chongqing 401120, China ' State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 40044, China ' College of Automotive Engineering, Chongqing University, Chongqing 40044, China

Abstract: The direct current/direct current converter (DC/DC) is an important component in electric vehicles (EVs), and it is one of the main electromagnetic interference (EMI) sources in EVs. On the basis of EVs' platform of Chang'an automobile, DC/DC working principle and its EMI mechanism are researched, and characteristics of EMI noise generated in a DC/DC converter are investigated through experiments. Then controlling methods for conducted and radiated EMI noises produced by DC/DC are proposed. Results show that the DC/DC designed by electromagnetic compatibility (EMC) technology has good EMI noise performance, and can be good to satisfy the application requirement in EVs.

Keywords: hybrid electric vehicles; HEVs; hybrid vehicles; DC-DC converters; EMC; electromagnetic compatibility; EMI; electromagnetic interference; noise control.

DOI: 10.1504/IJEHV.2015.074676

International Journal of Electric and Hybrid Vehicles, 2015 Vol.7 No.4, pp.375 - 388

Received: 07 Feb 2015
Accepted: 13 Aug 2015
Published online: 12 Feb 2016 *

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