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Title: Hysteresis modeling in transient analysis of electric motors with AlNiCo magnets
Authors: Yu, C
Niu, S 
Ho, SL 
Fu, W 
Li, L
Keywords: Aluminum-nickel-cobalt (AlNiCo)
Finite element method
Hysteresis model
Memory motor
Permanent magnet (PM)
Issue Date: 2015
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on magnetics, 2015, v. 51, no. 3, 6919313 How to cite?
Journal: IEEE transactions on magnetics 
Abstract: Electric motors fabricated with aluminum-nickel-cobalt (AlNiCo) permanent magnets (PMs) can be operated over a wide speed range, as the strong nonlinear demagnetization characteristics of AlNiCo allow effective and efficient airgap flux control. This paper presents a linear hysteresis model which is derived from the Preisach model for AlNiCo PMs, to be incorporated into the time-stepping finite element method to study the motor performance, especially transient performance, accurately and effectively. The proposed method can significantly reduce the computing time without scarifying the accuracy of the Preisach model. The validity and accuracy of the proposed method are verified by both simulation and experimentation.
ISSN: 0018-9464
EISSN: 1941-0069
DOI: 10.1109/TMAG.2014.2362615
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