Design and Cogging Torque Analysis of Permanent Magnet Synchronous Motor for Vehicular Fuel Cell Air Compressor

摘要

This paper presents the Hydrogen fuel cell vehicle (HFCV) that it is significant to solve the lack of energy and the environmental pollution from the aspects of the vehicle. Also, this paper, in terms of operational performance, analyzes that the air compressor with a permanent magnet synchronous motor (PMSM) is more suitable for application and bears a very key role in the Hydrogen fuel cells. Secondly, some problems in the design of PMSM are analyzed, including the selection of the magnetization direction of the rotor of PMSM. The parallel of magnetization is beneficial for PMSM with solid rotor permanent magnet (PM). In this paper, the advantages and disadvantages of slotted motors and slotless motors are compared, and the ratio of the length to the diameter of the stator is used to measure the stator size. The whole design process of PMSM and a new electromagnetic design scheme are proposed. On the premise of ensuring the air gap length is the only variable. The cogging torque is analyzed to find the best value for a 10 kW at 100000 rpm of PMSM. It provides a reference for selecting the air gap length of PMSM.