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Design and Analysis of AFPM Coreless Motor for Electric Scooter  

Kim, Chul-Ho (Dept. of Electrical Engineering, Graduate School of Kyungpook National University)
Oh, Chul-Soo (School of Electrical Engineering and Computer Science, Kyung-pook National University)
Publication Information
KIEE International Transaction on Electrical Machinery and Energy Conversion Systems / v.3B, no.2, 2003 , pp. 90-96 More about this Journal
Abstract
This paper deals with the design and the characteristic analysis of a coreless axial flux permanent magnet (AFPM) motor. Because a direct-drive wheel motor is easily derived from it, the AFPM motor is very suitable for application in an electric scooter. Compared to a conventional motor of the same size and weight, the AFPM motor is proven to have more power and torque per unit weight. In this paper, an AFPM coreless motor with a double-sided rotor disk equipped with Nd-Fe-B rare earth magnets is designed and a prototype of the motor is manufactured, which will be properly applied for the low-speed, and high-torque direct drive required for the electric scooter. The manufactured prototype of the motor has a rating of 300W, 510rpm, 5.6Nm, and 85% efficiency.
Keywords
AFPM coreless motor; electric scooter; brushless permanent magnet motor;
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Times Cited By KSCI : 1  (Citation Analysis)
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