Fault diagnosis of a squirrel cage induction motor fed by an inverter using lissajous curve of an auxiliary winding voltage

The development of electronic power components has allowed the increase induction machine performance. Indeed, monitoring squirrel cage motors driven through rectifiers and inverters been a major concern. This paper presents new method to diagnose combination inverter-machine faults. technic considers an auxiliary winding which is small coil inserted between two stator phases. It based on Lissajous curve this voltage Park components. For purpose, modeling electromechanical conversion chain necessary. focus will particularly be both inverter in non-defected case reference. Moreover, explicit expressions developed for its presented. simulation results show effectiveness proposed method.