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Analysis of Power and Torque for the IPM Motors with High Flux Density in Stator
Vuong Quoc Dang, Hung Duc Bui, Dinh Minh Bui
DOI: 10.15598/aeee.v21i2.4817
Abstract
The new idea of this paper is to focus on investigating the influence of characteristics on the power and torque of an Interior Permanent Magnet (IPM) motor designed by the Tesla rear-drive. The detail of improvement designs of double V (2V) shape and inverter delta (VI) shape has been proposed for electric vehicles taking a high constant torque in a wide range speed into account. The torque ripple, output power and torque density are developed and evaluated in different topologies via the finite element method. The two-layered rotor structure with the 2V and VI shapes is also designed to give the suitable choices for manufacturing in mass production. For the higher torque density and efficiency, the two-layered 2V or VI magnets of IPM motor with 72 slots/8 poles can be adjusted with the sinusoidal step skewing to minimize the torque ripple, harmonic components and back electromotive force. The developed method is performed on the practical problem of the IPM motor of 200 kW-450 Nm, which is applied to the single drive system delivers.
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