Analysis of Magnetic Field and Stator Iron Loss in IPMSM with Different Rotor Topologies for Electric Vehicles

Interior permanent magnet synchronous motors (IPMSMs) are extensively used in electric vehicle applications due to their excellent flux-weakening ability in the high-speed region. The complex magnetic field and frequency variation under a wide speed range has a significant impact on the motor losses...

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Bibliographic Details
Main Authors: Wang, Xiaoyuan, Liu, Shuangshuang, Wang, Lixin, Li, Tianyuan
Format: Conference Proceeding
Language:English
Subjects:
four typical operating conditions
Harmonic analysis
Interior permanent magnet synchronous motor
Iron
magnetic field
Permanent magnet motors
rotor topology
Rotors
stator iron loss
Stators
Synchronous motors
Topology
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Summary:Interior permanent magnet synchronous motors (IPMSMs) are extensively used in electric vehicle applications due to their excellent flux-weakening ability in the high-speed region. The complex magnetic field and frequency variation under a wide speed range has a significant impact on the motor losses, particularly the stator iron loss. In this paper, two 50kW IPMSMs with tangential-type rotor and V-shape rotor are designed and investigated, respectively. Based on 2-D finite element analysis (FEA), the magnetic field of four typical operating conditions (no-load, rated, flux-weakening, and deep flux-weakening) is calculated and analyzed. Then the stator iron losses of two motors in the whole speed range are obtained. The harmonic of flux density in stator teeth is quantitatively analyzed by Fourier decomposition. Finally, the influence of rotor topology and motor operating conditions on the magnetic field and stator iron loss in IPMSMs are clarified and concluded.
ISSN:2642-5513
DOI:10.1109/ICEMS59686.2023.10344367