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Design and implementation of an extended Kalman filter for the state estimation of a permanent magnet synchronous motor

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3 Author(s)
Dhaouadi, R. ; Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA ; Mohan, N. ; Norum, L.

Practical considerations for implementing the discrete extended Kalman filter in real time with a digital signal processor are discussed. The system considered is a permanent magnet synchronous motor (PMSM) without a position sensor, and the extended Kalman filter is designed for the online estimation of the speed and rotor position by only using measurements of the motor voltages and currents. The algorithms developed to allow efficient computation of the filter are presented. The computational techniques used to simplify the filter equations and their implementation in fixed-point arithmetic are discussed. Simulation and experimental results are presented to demonstrate the feasibility of this estimation process

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Power Electronics, IEEE Transactions on  (Volume:6 ,  Issue: 3 )