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Design Approach for a Novel Multi Material Variable Flux Synchronous Reluctance Machine without Rare Earth Magnets

Kesten, Julius ORCID iD icon 1; Frölich, Felix ORCID iD icon 2; Wittemann, Florian ORCID iD icon 2; Knirsch, Jonathan 2; Bechler, Florian; Kärger, Luise 2; Eberhard, Peter; Henning, Frank 2; Doppelbauer, Martin 1
1 Elektrotechnisches Institut (ETI), Karlsruher Institut für Technologie (KIT)
2 Institut für Fahrzeugsystemtechnik (FAST), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

A method to design a variable flux electric ma-chine using no rare earth materials is proposed. Starting from a synchronous reluctance machine’s rotor the electromagnetic and mechanical design goals are derived. To improve torque production radially magnetized low coercive field magnets are inserted in the rotor, allowing for a control of the rotor flux. The flux guidance is improved by removing the webs required for mechanical sturdiness, which is achieved instead by mold injecting fiber reinforced polymer into the flux barriers. On the basis of a large design of experiments and using Gaussian process regression models, the relation between the rotor design parameters and output torque as well as external fields in the magnets is investigated and an optimization is performed. The resulting machine design allows an operation with high torque without involuntary demagnetization. The potential of the polymer filled flux barriers is confirmed through structural mechanical analysis.

Postprint §
DOI: 10.5445/IR/1000151935
Veröffentlicht am 26.10.2022
DOI: 10.1109/ICEM51905.2022.9910780
Zitationen: 1
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Elektrotechnisches Institut (ETI)
Institut für Fahrzeugsystemtechnik (FAST)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 05.09.2022
Sprache Englisch
Identifikator ISBN: 978-1-6654-1433-3
KITopen-ID: 1000151935
Erschienen in 2022 International Conference on Electrical Machines (ICEM), Valencia, Spain, 05-08 September 2022
Veranstaltung 25th International Conference on Electrical Machines (ICEM 2022), Valencia, Spanien, 05.09.2022 – 08.09.2022
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten 2304–2310
Schlagwörter Magnetic flux, Torque, Magnetomechanical effects, Rotors, Injection molding, Reluctance machines, Polymers, Design of experiments, electric machines, finite element analysis, modeling, multi material design, optimization, reinforced polymers, rotor design, structural design
Nachgewiesen in Dimensions
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