Optimal design of the magnetizing fixture using taguchi robust design in the ring-type PMSM

Abstract

The design the magnetizing fixture is important because the quality of magnetization depends on the design of the magnetizing fixture. Especially, the magnetization direction in the case of ring-type permanent magnet synchronous motor (PMSM) is crucial because the position or the structure of PM cannot be modified. Moreover, the uncertain magnetization of the PM occurs fairly often in the ring-type PMSM in industry. Therefore, this paper presents a Taguchi robust design of the surface flux density characteristic analysis using the structural optimization of magnetizing fixture in order to optimize the magnetization in the PM. The validity of the analysis method is verified by test.