The Optimal Waveform Research of Direct-Driven Wheel Motor

• Main Authors: Yann-Guang Pan, 潘彥光
• Other Authors: Yee-Peen Yang
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/48594313239473438823

碩士 === 國立臺灣大學 === 機械工程學研究所 === 87 === The optimal design of the driving current pattern for a disc-type axial-flux brushless DC motor is proposed in this paper. The electro-magnetic dynamical model of the motor is established, describing the relationship between the output torque and driving current pattern is obtained by maximizing the torque output with respect to the rotor shift. Therefore, the average torque produced by the exciting current with optimal phase angle is greater than that by traditional three-phase-on current pattern with fixed 120-degree phase shift. The results are verified with experiments on the motor performance by the use of dynamometer.