Investigation of the effect of demagnetization fault at Line Start AF-PMSM with FEM

In motors containing magnets, irreversible demagnetization failure is one of the factors that negatively affect motor performance. this study, traditional Axial Flux Permanent Magnet Synchronous Motor (AF-PMSM) rotor structure was changed and gained feature starting from line used. Line Start AF-PMSM with 5.5 kW shaft power has 4 poles each pole consists 5 magnets. Demagnetization obtained by flux values magnets in any are drawn to zero virtual created at certain rates (20%, 40% 60%). With FEM, data healthy faulty were obtained. The then presented comparatively. Obtained showed fault affects performance, results given detail article. original aspect study investigated for first time FEM.