Title: Design and optimisation of interior PM machines with distributed and fractional-slot concentrated-windings for hybrid electric vehicles

Authors: Aimeng Wang; Hui Wang; W.L. Soong

Addresses: State Key Laboratory of Alternative Electrical Power Systems with Renewable Energy Sources, North China Electric Power University, Baoding 071000, China ' State Key Laboratory of Alternative Electrical Power Systems with Renewable Energy Sources, North China Electric Power University, Baoding 071000, China ' School of Electrical and Electronic Engineering, University of Adelaide, Adelaide 5005, Australia

Abstract: This paper presents an optimisation of an interior permanent magnet (PM) machine with fractional-slot concentrated-windings (FSCW) based on a machine with integer-slot distributed windings (ISDW), and a performance comparison between the two machines for use in hybrid electric vehicles. Finite element analysis (FEA) is used to investigate the characteristics of the two machines which have the same dimensions and rated power. The effect of the number of slots on the back-EMF, cogging torque, d- and q-axis inductances and efficiency is analysed for the two machines. The measured results have good agreement with the FEA results.

Keywords: interior PMM; permanent magnet motors; ISDW; integer-slot distributed windings; FSCW; fractional-slot concentrated windings; FEA; finite element analysis; machine design; optimisation; hybrid electric vehicles; HEVs; hybrid vehicles.

DOI: 10.1504/IJVD.2015.073130

International Journal of Vehicle Design, 2015 Vol.69 No.1/2/3/4, pp.241 - 254

Received: 16 Nov 2014
Accepted: 11 Jun 2015

Published online: 20 Nov 2015 *

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