Interior permanent magnet synchronous motors (IPMSM) have emerged as the preferred drive motors for loaders, owing to their high torque density, strong overload capacity, and excellent reliability. This paper focuses on a 125kW, 3000rpm IPMSM as the research object. Firstly, the performance requirements and overall design process of IPMSM are described in detail. At the same time, combined with the motor power size equation, the main size parameters of the motor are determined. On this basis, the influence of the slot type and air gap length on the key electromagnetic performance of the IPMSM is obtained. Then the topology parameters of the motor are obtained, and the finite element analysis (FEA) is used to model, simulate and calculate the motor. Finally, the key electromagnetic performance of the IPMSM under no-load condition and rated condition is analyzed. The results show the design scheme of the IPMSM is to meet the requirements of the performance indicators.
Zhang et al. (Mon,) studied this question.