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Predictive direct torque control for the PM synchronous machine

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2 Author(s)
Pacas, M. ; Fac. of Electr. Eng. & Comput. Sci., Univ. of Siegen, Germany ; Weber, J.

This paper shows that a predictive digital control combined with the principle of direct torque control (DTC) leads to an excellent dynamic behavior of the synchronous machine with surface-mounted permanent magnets and is a real alternative to the classical field-orientated control. The advantages are a DTC control scheme with constant switching frequency and a predictable torque ripple. The settling times of the torque are reduced compared to the classical field-orientated control. The application in servo drives in which the rotor position is always measured can easily be achieved by using a commercial digital signal processor. Numerous simulations and measurements confirm the theoretical work.

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Industrial Electronics, IEEE Transactions on  (Volume:52 ,  Issue: 5 )