Analysis of Permanent Magnet Synchronous Machine Tooth Flux Under Eccentricity Fault

Abstract

Eccentricity fault is a common fault of permanent magnet synchronous machines. It is hard to repair the fault efficiently if it is not diagnosed accurately. This paper presents a quantitative analysis of tooth flux with eccentricity fault based on co-simulation. Moreover, set up an experiment platform to validate the analysis. The analysis result reflects quantitative relationship of the eccentricity ratio and the tooth fluxes. It is helpful for improving the accuracy of the eccentricity diagnosis based on the tooth flux and the reliability of PMSMs.