Structure Principle and Optimization of a Novel Disk Transverse Flux Permanent Magnet Brushless Motor
Zhang Wenjing1, Xu Yanliang1, Li Shucai2
1. School of Electrical Engineering Shandong University Jinan 250061 China; 2. Shandong Jingchuang Magnetoelectric Industry Institute Co. Ltd Linyi 276000 China
Abstract：As the executive device of industrial robots, servo motors generally adopt surface- mounted permanent magnet synchronous motors. However, the axial winding ends and higher-quality rotors of this type of motor cannot satisfy the requirements of miniaturization and high dynamics. In this paper, a novel disk-type transverse flux permanent magnet brushless motor (DTFM) applied to industrial robots is proposed. By eliminating the axial winding ends and designing inner space reasonably combined with the specific requirements of industrial robots, the volume of the motor can be effectively reduced. In addition, small volume and low-quality disk structure enhances the dynamic performance of the motor. First, the structure and principle of DTFM are introduced. Then, the power equation and the main dimensions of DTFM are deduced, and a set of preliminary design schemes are obtained. Furthermore, the influence of structure parameters on performance is analyzed, and a new multi-objective optimization strategy combining neural network and multi-objective particle swarm algorithm is used to optimize the DTFM. Finally, a prototype DTFM is manufactured and the superiority of the DTFM is verified through experiment.
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2021, Vol. 36 
