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Design and Optimization of a Novel Dual-PM Machine for Electric Vehicle Applications

2020; Institute of Electrical and Electronics Engineers; Volume: 69; Issue: 12 Linguagem: Inglês

10.1109/tvt.2020.3034573

1939-9359

Qifang Lin, Shuangxia Niu, Fengbin Cai, W. N. Fu, Liku Shang,

Wireless Power Transfer Systems

This paper proposes a novel direct-drive dual-PM motor for electric automatic guided vehicles (AGV). The proposed motor has split teeth on stator and dual PMs in stator and rotor sides, which contributes to reduced torque ripple, and enhanced torque. The airgap field of the proposed motor is analyzed theoretically, and the slot/pole selection guide line is concluded. The simulation results of the airgap flux density are shown and Fourier Transformation (FFT) analysis results agree well with the theoretically analyses results. Besides, the effects of design parameters of the proposed motor to the performances of the proposed motor are investigated. And it is found that reduced slot open could produce improved efficiency and decreased torque ripple. The efficiency of the proposed motor is relatively high within the operation range. A corresponding prototype is fabricated and the experiment validates the design.