Minimization of Vibration and Acoustic Noise in Flux-Switching Permanent-Magnet Motors Based on Double Fault-Tolerant Teeth

Flux-switching permanent-magnet (FSPM) motors are been studied as a promising candidate for many industrial applications, but they suffer from vibration and acoustic noise of electromagnetic origins. This paper proposes a new five-phase fault-tolerant FSPM motor in order to reduce vibration and acoustic noise, which has double fault-tolerant teeth on stator. By cutting down the lowest harmonic of radial force density, vibration and acoustic noise characteristics of the proposed motor is improved. Results indicate that the proposed motor retains the merits of existing FSPM motors, and offers less vibration, smaller acoustic noise.