Study of various slanted air-gap structures of interior permanent magnet synchronous motor with brushless field excitation
作者： Seong Taek Lee , Leon M. Tolbert
DOI: 10.1109/ECCE.2010.5618113
关键词: Magnet 、 Direct torque control 、 Torque 、 Inductance 、 Acoustics 、 Air gap (plumbing) 、 Electric motor 、 Synchronous motor 、 Physics 、 Equivalent circuit 、 Electrical engineering
摘要: This paper shows how to maximize the effect of slanted air-gap structure an interior permanent magnet synchronous motor with brushless field excitation (BFE) for application in a hybrid electric vehicle. The BFE offers high torque density at low speed and weakened flux speed. unique is intended increase output machine as well ratio back-emf that controllable by BFE. irregularly shaped makes barrier along d-axis path decreases inductance; result, reluctance much higher than uniform machine, so torque. Also, achieves magnitude back-emf. determination shape was performed using magnetic equivalent circuit analysis finite element (FEA).
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