Study of Effect of Magnet Clearance Fit on High-speed Interior Permanent Magnet Synchronous Motor

Abstract

For interior permanent magnet synchronous motors (IPMSM), assembling permanent magnet with clearance fittings can make the procedure less challenging. While the position of the PMs may fluctuate as a result of centrifugal and electromagnetic forces, this may impair motor performance, particularly for high-speed PMSMs. In this paper, Maxwell stress tensor method and finite element method are used to analyze the force applied to PMs. A 1. 6kW,18krpm motor is employed to analyze the effect of PM location on motor performance. Finally, a prototype is made and tested to verify the correctness of analysis.