Design optimization of a novel doubly fed dual-rotor flux-modulated machine for hybrid electric vehicles

Yulong Liu, Siu Lau Ho, Weinong Fu, Xiu Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)


The doubly fed dual-rotor flux-modulated (DFDRFM) machine is a promising electrical continuously variable transmission (E-CVT) concept for the hybrid electric vehicles as it has two mechanical ports and two electrical ports, which are highly desirable for E-CVT. In this paper, a novel DFDRFM machine is proposed. Compared with previous designs, the most prominent merits are its compactness and robustness. In addition, it is easy to manufacture. After introducing its structure and working principle, the influence of dimensions on its torque and loss is analyzed. A genetic algorithm and finite-element method-based design optimization method, which aims to increase the efficiency of the proposed machine, is presented.
Original languageEnglish
Article number7093462
JournalIEEE Transactions on Magnetics
Issue number3
Publication statusPublished - 1 Mar 2015


  • Doubly fed dual-rotor flux-modulated (DFDRFM) machine
  • electric machine optimization
  • electrical continuously variable transmission (E-CVT)
  • hybrid electric vehicle (HEV)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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