Design and Experimental Investigation of a Hybrid Rotor Permanent Magnet Modular Machine with 3D Flux Paths Accounting for Recyclability of Permanent Magnet Material

Adolfo Garcia Gonzalez, Dong Wang, Jean-Marc Dubus and Peter Omand Rasmussen
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Adolfo Garcia Gonzalez: Institute of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
Dong Wang: Institute of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
Jean-Marc Dubus: Electrical Motor Equipment, Valeo, 94000 Creteil, France
Peter Omand Rasmussen: Institute of Energy Technology, Aalborg University, 9220 Aalborg, Denmark

Energies, 2020, vol. 13, issue 6, 1-22

Abstract: Rare-earth metals used for manufacturing Permanent Magnets (PMs) remain classified as critical raw materials by the European Commission. In order to secure the supply of electrical machines due to the increasing demand of Hybrid and Full Electrical Vehicles ((H)EVs), recycling has emerged as a valuable alternative. Hence, this paper presents the concept of a modular PM machine with a hybrid rotor and 3D flux paths, for application in ((H)EVs). The proposed machine topology is intended to facilitate the extraction of PM material towards a recycling process. The selection of a machine for prototyping is carried out by investigating the effect of the variation of the number of rotor teeth and stator modules on various parameters, with models developed in Finite Element (FE). Finally, the models developed of the selected combination were validated with a detailed experimental evaluation of the prototype.

Keywords: electric vehicles; finite element analysis; permanent magnets; permanent magnet machines; recycling; 3D flux; E-shaped cores (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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