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Design of Optimal Resonant Frequency for Series-Loaded Resonant DC-DC Converter in EVs On-Board Battery Charger Application

전기자동차 탑재형 충전기용 부하직렬공진형 컨버터의 최적 공진주파수 설계

  • Oh, Chang-Yeol (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Kim, Jong-Soo (Power Center, Material & Device Research Center, Samsung Advanced Institute of Technology) ;
  • Lee, Byoung-Kuk (School of Information and Communication Engineering, Sungkyunkwan University)
  • Received : 2011.09.09
  • Accepted : 2011.12.13
  • Published : 2012.02.20

Abstract

This paper describes the process of optimal resonant frequency design with full-bridge series-loaded resonant dc-dc converter in a high efficiency 3.3 kW on-board battery charger application for Electric Vehicles and Plug-in Hybrid Electric Vehicles. The optimal range of resonant frequency and switching frequency used for ZVS are determined by considering trade-off between loss of switching devices and resonant network with size of passive/magnetic devices. In addition, it is defined charging region of battery, the load of on-board charger, as the area of load by deliberating the characteristic of resonant. It is verified the designed frequency band by reflecting the defined area on resonant frequency.

Acknowledgement

Supported by : 한국에너지기술평가원 (KETEP)

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