Analytical Study of Optimal Layout of Permanent Magnet in IPMSM for Generating Sinusoidal Flux-Density Distribution in Air Gap

摘要

This paper demonstrates an analytical optimization method for rotor designs of interior permanent magnet synchronous machines with multiple flux-barriers. In particular, this study focuses on the optimal layout of permanent magnets for generating a sinusoidal flux density distribution in the air gap. In addition, practical design methods for realizing the optimal layout are proposed, and the designs are verified through finite-element analyses.