Effect of Slot Opening Width on the Air-Gap Magnetic Field of a Direct Drive Permanent Magnet Motor

• Published in: Applied sciences Vol. 9; no. 21; p. 4649
• Main Authors: Han, Yaofei, Chen, Shaofeng, Gao, Caixia, Gao, Mengzhen, Si, Jikai, Hu, Yihua
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.11.2019
• Subjects: air-gap magnetic field; Boundary conditions; direct drive permanent magnet motor; exact analytical model; fourier analysis; Magnetic fields; Magnetism; Partial differential equations; Permeability; slot opening width

The direct drive permanent magnet motor (DDPMM) is a promising candidate for applications because of its high efficiency, high power density, and low maintenance costs. This study focused on the effect of slot opening width on the air-gap magnetic field of a DDPMM. An exact analytical model based on...