@inproceedings{be7cc94ab6bc49bd8be10036e8bc904f,
title = "Hybrid magnet configuration to reduce the content of rare earth elements in a PM-synrel machine",
abstract = "An electric drive with reduced content of rare earth magnets is sought after by the manufacturers of electric vehicles (EVs). A ferrite based permanent magnet assisted synchronous reluctance (PM-SynRel) machine has emerged as a viable alternative to curtail the dependence on NdFeB PM. However, inadequate torque density and demagnetization withstand capability of these machines prevent them from being used in EVs. This paper aims at identifying topologies of PM-SynRel machine which exhibits adequate torque density and demagnetization withstand capability with reduced rare earth content. Tandem arrangement of NdFeB and ferrite PMs in the flux barriers reduces rare earth content and improves demagnetization withstand capability without a significant change in output torque. Based on this, NdFeB-Ferrite-NdFeB (NFN) and FNN topologies of PM-SynRel machine are deduced as favourable choices for the EV sector. Finally, a multiphysics optimization is implemented to ascertain the performance of both NFN and FNN topologies.",
keywords = "Demagnetization, Ferrite PM, Hybrid PM-SynRel, NdFeB",
author = "{Ram Kumar}, {R. M.} and Gaurang Vakil and David Gerada and Chris Gerada and Krzysztof Paciura and Fernandes, {B. G.} and Liang Yan",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020 ; Conference date: 23-06-2020 Through 26-06-2020",
year = "2020",
month = jun,
doi = "10.1109/ITEC48692.2020.9161621",
language = "English",
series = "2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "352--357",
booktitle = "2020 IEEE Transportation Electrification Conference and Expo, ITEC 2020",
address = "United States",
}
