On-line diagnostics of ac electronic motor

Abstract

The problems of limitation of electromagnetic torque of the AC electronic motor and assessment of the resisting moment on the motor shaft with the purpose of diagnostics of electric drive state are considered. The equations of electromagnetic torque and resisting moment done by the observers which work independently are synthesized. The mathematical modeling is performed thus it proves the efficiency of observers cooperation.

Keywords: electric drive, diagnostics of state, AC electronic motor, synchronous electric motor with permanent magnets.