Analysis and Design Considerations of a Dual-Rotor Multiple-Winding Machine

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)8727-8738
Journal / PublicationIEEE Transactions on Industrial Electronics
Issue number9
Online published29 Sep 2021
Publication statusPublished - Sep 2022


In this paper, a novel dual-rotor multiple-winding machine (DRMWM) is proposed for the continuous variable transmission (CVT) in hybrid electric vehicles (HEVs). First, a mathematical model of the proposed machine is constructed by using the harmonic modeling method (HMM). Then, on the basis of the magnetic field analysis, the operating principle of the DRMWM is deduced. By introducing multiple windings with two different working harmonics, namely the permanent magnet (PM) harmonics, and the magnetic gear (MG) harmonics, the proposed DRMWM can cope with various operating conditions of HEVs. To further obtain optimal performance, a finite element analysis (FEA) and multi-objective genetic algorithm II (MOGA-II) combined sequential optimization is carried out for the proposed DRMWM. The proposed optimization method is proven to be more computationally efficient compared to the global optimization method. Finally, a prototype is manufactured and tested in various operating modes. The results validate the simulation and analytical method predictions. Also, it proves that the proposed DRMWM is suitable to work as the CVT in HEVs.

Research Area(s)

  • Continuous variable transmission (CVT), dual rotor, Harmonic analysis, harmonic modeling method (HMM), Hidden Markov models, Hybrid electric vehicle, Magnetosphere, operating mode, permanent magnet (PM) machine, Rotors, Saturation magnetization, sequential optimization, Stator windings, Windings