Simulation of Broken Rotor Bar Fault by Asymmetric Induction Motor Model

Abstract

There is a need for diagnostics of the ship’s electrical equipment, which improves its operation and maintenance. The ship’s working conditions are very specific: metal hull, diesel power plant, powerful electric propulsion, the presence of various sources of disturbances. Development and implementation of ship systems for centralized control and diagnostics of perfect electrical equipment Ask in these systems for modeling of the induction machine, including damage to the rotor and the sideband, with minimal computational complexity. In known publications, mathematical models of induction motors are usually used, there is one specific damage. In our previous publications, a universal asymmetric mathematical model of an induction motor was proposed, allowing simulations of production emergency modes caused by damage in stator and rotor windings and in the mechanical part of the motor. In the article with the help of this universal model a broken rotor bar fault is simulated. An asymmetrically necessary mathematical model of the induction motor and a way to simulate this type of failure are shown. The obtained experimental results are introduced and analyzed with the help of the model.