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Nonlinear control of a permanent magnet synchronous motor with disturbance torque estimation

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3 Author(s)
Solsona, Jorge ; Univ. Nacional del Comahue, Argentina ; Valla, M.I. ; Muravchik, C.

This paper introduces a sensorless nonlinear control scheme for controlling the speed of a permanent magnet synchronous motor (PMSM) driving an unknown load torque. The states of the motor and disturbance torque are estimated via an extended nonlinear observer avoiding the use of mechanical sensors. The control strategy is an exact feedback linearization law, with trajectory tracking evaluated on estimated values of the PMSM states and the disturbance torque. The system performance is evaluated by simulations

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Energy Conversion, IEEE Transactions on  (Volume:15 ,  Issue: 2 )