Abstract
The shortcoming of permanent magnet (PM) machine is the de-excitation problem under fault condition, which is a main issue for aircraft application. Thus, modeling different kinds of faults accurately is of great importance. This paper presents the comparison of three different modeling methods dealing with stator winding open circuit (OC) fault and turn-to-turn short circuit (SC) fault. The modeling methods are field-circuit coupling model (FCCM) method, finite element analysis based electrical model (FEABEM) method and finite element analysis based mathematical model (FEABMM) method. The evaluation criteria are based on the accuracy of the methods and the simulation time. The simulation results show that the FEABMM method presents a high accuracy and a relatively shorter time.
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