Magnetic Equivalent Circuit Modeling of Induction Machines Under Stator and Rotor Fault Conditions
Format of Original
Institute of Electrical and Electronics Engineers (IEEE)
IEEE International Electric Machines and Drives Conference, 2009. IEMDC '09.
In this paper, stator and rotor failures in squirrel-cage induction machines are modeled using the magnetic equivalent circuit (MEC) approach. Failures associated with stator winding and rotor cage are considered. More specifically, stator inter-turn short circuit and broken rotor bar failures are modeled. When compared to conventional modeling techniques, the MEC modeling approach offers two main advantages: 1) relatively high speed of execution, and 2) high accuracy. The developed MEC model is validated here with respect to the experimental tests and time-stepping finite-element simulations for healthy and various faulty conditions.