Abstract
The paper presents a Finite Element Analysis (FEA) based efficient analysis procedure for permanent magnet synchronous motor (PMSM). The study based on finite element models (FEM) offers much more information on the phenomena characterizing the operation of electrical machines than the classical analytical models. This paper attempts to present a dynamic model involving FEA and equivalent circuit simulation together for PWM inverter fed PMSM assisted based on Maxwell 2D and Simplorer. The nonlinear magnetization characteristics have been considered and calculated by FE software Maxwell. The scheme of the inverter are built using the circuit components in Simplorer environment. Based on FEM, the influence of the inter turn fault on the PMSM behavior under various conditions and severity is studied. The comparison of the results obtained by simulation tests allowed verifying the precision of the proposed FEM model. Using the simulated model, this work presents a technical method based on Fast Fourier Transform (FFT) analysis of stator current and electromagnetic torque to detect the faults of inter turn using Simulink/Matlab. The technique used and the obtained results show clearly the possibility of extracting signatures to detect and locate faults.
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