volume | PIER Journals

Abstract

In this paper, a high-speed frameless torque permanent magnet synchronous motor is designed to determine the optimal structure of the rotor by comparing the air gap magnetism, cogging torque and output torque of the motor through finite element analysis. The effects of different material rotor sheaths on eddy current loss are compared and analyzed, and the copper shield is used to optimize the rotor eddy current loss of the high-speed frameless torque motor. Through the analytical method, based on the theory of thick-walled cylinder, the stress calculation is carried out on the multilayer rotor structure of the high-speed permanent magnet synchronous motor with copper shielding layer, and a comparative analysis is carried out with the simulation results to verify the validity of the analytical calculations and the reasonableness of the optimization of the rotor eddy current loss.

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Dr. Xiping Liu

Mr. Haiao Sun

Dr. Zhangqi Liu

Dr. Canwei Zhang