Analysis and design of a high power density permanent magnet-assisted synchronous reluctance machine with low-cost ferrite magnets for EVs/HEVs
ISSN: 0332-1649
Article publication date: 7 November 2016
Abstract
Purpose
The purpose of this paper is to propose a permanent magnet-assisted synchronous reluctance machine (PMASynRM) using ferrite magnets with the same power density as rare-earth PM synchronous motors used in Toyota Prius 2010.
Design/methodology/approach
A novel rotor structure with rectangular PMs is discussed with respect to the demagnetization of ferrite magnets and mechanical strength. Some electromagnetic characteristics including torque, output power, loss and efficiency are calculated by 2D finite element analysis.
Findings
The results of the analysis show that a high power density and high efficiency for PMASynRM can be achieved using ferrite magnets.
Originality/value
This paper proposes a novel rotor structure of PMASynRM with low-cost ferrite magnets that achieves high power density as permanent machines with rare-earth PMs.
Keywords
Acknowledgements
This work is supported by the Natural National Science Foundation of PR China (No. 51267006) and the Plan Project of Jiangxi Province of PR China (Nos 20151BBE50109, 20153BCB23012) and the Program of Qingjiang Excellent Young Talents, Jiangxi University of Science and Technology (JXUST).
Citation
Liu, X., Li, Y., Liu, Z., Ling, T. and Luo, Z. (2016), "Analysis and design of a high power density permanent magnet-assisted synchronous reluctance machine with low-cost ferrite magnets for EVs/HEVs", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 35 No. 6, pp. 1949-1964. https://doi.org/10.1108/COMPEL-05-2016-0233
Publisher
:Emerald Group Publishing Limited
Copyright © 2016, Emerald Group Publishing Limited