An integrated switched reluctance motor drive topology with voltage-boosting and on-board charging capabilities for plug-in hybrid electric vehicles (PHEVs)

Mingyao Ma, Zhongyi Chang, Yihua Hu, Fei Li, Chun Gan, Wenping Cao

Research output: Contribution to journalArticle

Abstract

This paper presents a new topology of switched reluctance motor (SRM) drive for plug-in hybrid electric vehicles (PHEVs). Six operating modes can be achieved as a result. Three of those modes are applied for driving and the others for charging. During the driving mode, the topology can be converted to a four-level one. During the charging mode, two battery packs are charged in parallel with the boost circuit by the external AC source or generators. The main contributions of the proposed topology are as follows: 1) A four-level converter is formed by adopting different ways of connection (series or parallel) of the two battery packs (or the two capacitors), which can accelerate the excitation and demagnetization procedures of SRMs. Moreover, the topology contributes to decreasing the switching losses and extending the constant torque region to improve the drive performance as well. 2) The state of charge (SOC) of the two battery packs (or the voltages of two capacitors) can keep balance on their own by parallel operation of the two battery packs. Furthermore, a detailed comparison between two drive modes of the proposed topology and asymmetric half bridge inverters is undertaken with simulation and experimental studies, the results of which demonstrate the validity of the proposed topology.
Original languageEnglish
Pages (from-to)1550-1559
JournalIEEE Access
Volume6
Early online date4 Dec 2017
DOIs
Publication statusE-pub ahead of print - 4 Dec 2017

Bibliographical note

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Keywords

  • Fast excitation and demagnetization
  • plug-in hybrid electric vehicle (PHEV)
  • switched reluctance motor (SRM)
  • battery chargers
  • switch capacitor
  • voltage boosting

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