Optimal Design of Axial-flux Permanent Magnet In-Wheel Motor for Electric Vehicle
Date Issued
2004
Date
2004
Author(s)
Chuang, Down-Xu
DOI
zh-TW
Abstract
Axial-flux permanent magnet motors have the advantages of high torque and high torque density and high efficiency. Before the design of electric vehicle, it is necessary to know the requirement of it. The requirement should be include at least the maximum torque, the maximum speed and the rated power for propulsion. The performance of the motor would set to the constraint of the optimal design. The first topic of this thesis is using energy method to establish the simplified torque equation, and the voltage equation is used to calculate the other performances of the motor. At the constraint of finite space and geometry, the optimal theory can help to find the best performance by changes of design variable. The Multi-Object System Tool (MOST) is used to make Optimization possible. The Optimal results are investigated by 3D Finite-Element Analysis (FEMA) Electromagnetic analysis software. According to the results of 3D FEMA Electromagnetic, some detail geometry can be modified without changing the optimal results to achieve better performance, like lightening weight and minimizing the torque ripple of the motor. The second topic of this thesis is to use this optimal design process to design high torque output, high speed, high efficiency and light weight motor for electric vehicle.
Subjects
電動汽車
最佳化設計
車輪馬達
有限元素分析
Electric Vehicle
in-wheel motor
finite element analysis
Optimal Design
Type
thesis
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