Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 63, Issue 6, Pages 3533-3545Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2016.2524415
Keywords
Flux-weakening ability; interior permanent-magnet synchronous machine (IPMSM); rotor topologies
Categories
Funding
- National Natural Science Foundation of China [51307008]
- Key Laboratory for Intelligent Control and Decision of Complex Systems, Beijing Institute of Technology
- Ph.D. Programs Foundation of the Ministry of Education of China [20121101120024]
- Basic Research Foundation of Beijing Institute of Technology [201306420153]
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As a kind of traction device, interior permanent-magnet synchronous machines (IPMSMs) are widely used in modern electric vehicles. This paper performs a design and comparative study of IPMSMs with different rotor topologies (spoke-type PMs, tangential-type PMs, U-shape PMs, and V-shape PMs). The research results indicate that the IPMSM with V-shape PMs is more satisfying with comprehensive consideration. Furthermore, the IPMSM with V-shape PMs is investigated in detail. The influences of geometrical parameters (magnetic bridge and angle between the two V-shape PMs under each pole, etc.) on the performances of V-shape motor are evaluated based on finite-element method (FEM). For accurate research, the effects of saturation, cross-magnetization, and the change in PM flux linkage on d- and q-axis inductances are considered. The back-electromotive force (EMF), flux leakage coefficient, average torque, torque ripple, cogging torque, power per unit volume, power factor, and flux-weakening ability are investigated, respectively. The experimental results verify the validity and accuracy of the process presented in this paper.
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