Fault simulation of medium voltage squirrel cage induction motors

Abstract

The main objective of this paper is to model failures of squirrel cage rotor induction motors, it presents the equations that model the machine variables, and we simulate an induction motor in the Matlab-Simulink software, to know and evaluate the effects of the stator windings when the motor experiences failure to function as a short circuit between spirals that there are many diagnostic methodologies for each class of failure. The most widely used technique is analyzing the frequency spectrum of one or several motor signals. A fault in the motor represents an asymmetry concerning its construction; consequently, harmonic components appear in the electrical signals that are related to the present fault, and the spectral analysis of motor current signatures applying the fast Fourier transform (FFT) to the current since these contain relevant information that is distinguished in a spectrum of frequencies.