Sensorless field oriented control of nonsinusoidal ux-distribution permanent magnet synchronous motor with a FEM based ANN observer

Abstract

The sensorless vector control of a nonsinusoidal ux-distribution permanent magnet synchronous motor (PMSM) has been performed by a trained artificial neural network (ANN) using ux data obtained from the finite element method (FEM). A more sensitive rotor position has been estimated by using the uxes of each of the three phases of the PMSM. In the proposed approach, magnet ux of the nonsinusoidal PMSM has been calculated by FEM for every single degree. Rotor position and speed values have been estimated by training an ANN with this information. The experimental results obtained by DS1103 development kit have proved the validity of the proposed approach.