Direct Torque Control of Saturated Induction Machine with and without speed sensor

Samir Moulahoum et Med Seghir Boucherit Tahar Djelloul

الملخص


In this paper, a modified KALMAN filter is proposed to estimate speed. At first, the influence of the magnetic saturation is taken into account in the modelling. In the second part, the direct torque control (DTC) is elaborated; the control of the speed loop is ensured by an IP controller, the flux and the torque are estimated from source voltages and measured currents. The last part of this work is devoted to the operating system without mechanical sensor, using a KALMAN filter as a speed observer. Simulation results are presented to verify the effectiveness of the proposed approach.

 

Key words: DTC, Sensors, KALMAN filter, induction machine, saturated model, speed observer.


المراجع


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. Moulahoum S., Baghli L, Rezzoug. A,Touhami O,2008- "Sensorless Vector Control of a Saturated Induction Machine accounting for iron loss", European Journal of Electrical Engineering, EJEE, Lavoisier, Hermès Sciences, Vol : 11, N° :4/5, pp 511-543,

. Boldea. I, Nasar. S.A,1987-“Unified treatment of core losses and saturation in orthogonal axis models of electric machines”, Proc. IEE, vol. 134, pt. B, pp. 353-363,

.KIM.Y.R,.SUL.S.K,PARK. M.H,1994 -“Speed sensorless vector control of induction motor using extended Kalman filter”, IEEE Trans. on Industry Applications, vol.IA-30, no 30, pp. 1225-1233.

.Zhong. L, Rahman. M.F, Hu. W.Y ,and Lim. K.W,1997."Analysis of direct torque control in permanent magnet Synchronous motor drives, "IEEE Trans. Power Electron.,vol.12,pp.528-536.

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