A High Efficiency, Decoupled On-board Battery Charger with Magnetic Control

  • Yuqi Wei
  • , Necmi Altin
  • , Quanming Luo
  • , Adel Nasiri

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

43 Scopus citations

Abstract

In this paper, a high efficiency, decoupled on-board battery charger is proposed. The proposed topology is composed of two LLC resonant converters sharing the same full-bridge inverter with constant switching frequency. The outputs of two LLC resonant converters are connected in series. One of the LLC resonant converters is operated at the resonant frequency, which is the highest efficiency operation point. The magnetic control is adopted for the second LLC resonant converter to fulfill the closed-loop control of charge voltage and current for constant voltage (CV) and constant current (CC) charge modes. The proposed topology can achieve zero voltage switching (ZVS) for all primary switches and zero current switching (ZCS) for all secondary diodes during both CC and CV modes. Furthermore, thanks to constant frequency operation, the electromagnetic interference (EMI) filter design is simplified. Simulation and experimental studies are presented to verify the feasibility and validity of the proposed topology.

Original languageEnglish
Title of host publication7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages920-925
Number of pages6
ISBN (Electronic)9781538659823
DOIs
StatePublished - 6 Dec 2018
Externally publishedYes
Event7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018 - Paris, France
Duration: 14 Oct 201817 Oct 2018

Publication series

Name7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018

Conference

Conference7th International IEEE Conference on Renewable Energy Research and Applications, ICRERA 2018
Country/TerritoryFrance
CityParis
Period14/10/1817/10/18

Keywords

  • Battery charger
  • Decoupled
  • High efficiency
  • LLC resonant converter
  • Magnetic control

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