Research on vibration and noise of magnetic pole eccentricity tangential magnetizing parallel structure hybrid excitation synchronous motor

Abstract

In order to research vibration and noise of TMPS-HESM. The Magnetic pole eccentricity TMPS-HESM is established. The order and frequency characteristics of radial electromagnetic force are discussed The vibration and noise coupling model is built by ANSYS Workbench simulation platform. The vibration response and noise variation are discussed. The results show that magnetic pole eccentricity can effectively reduce air gap flux density harmonic content, and third harmonic is significantly decreased. The excitation current will significantly affect the harmonic (8,2f1), (16,4f1), (0,12f1) components of radial electromagnetic force of magnetic pole eccentricity TMPS-HESM. Although the (0,12f1) component is not the same order of magnitude as other components, it will still worsen the vibration noise of the motor.