| Summary: | 碩士 === 國立臺灣大學 === 機械工程學系研究所 === 86 === Recently, direct-driven wheel motors have been widely applied to electric
vehicles, where transmission mechanism and gearbox are not necessary, and ther
efore, mechanical loss can be avoided. Axial-flux permanent magnet (AFPM) moto
rs can be designed and constructed to achieve a higher torque-to-weight ratio
and motor efficiency, and are suitable for wheel motor applications. This pape
r presents the procedure of an optimal design of axial-flux permanent motors.
First, a set of mathematical models is developed to describe the APFM design i
n terms of the design variables. Then, the optimal shape of motor is determine
d by the optimization technology to meet various specifications and constraint
s. The design results are investigated by the 2D electromagnetic analysis, and
the final design decision is made through engineering experience and manufact
uring requirements.
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