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Predictive Direct Torque Control for Brushless Doubly Fed Machine with Reduced Torque Ripple at Constant Switching Frequency

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4 Author(s)
Sarasola, I. ; Univ. of Mondragon, Arrasate ; Poza, J. ; Rodriguez, M.A. ; Abad, G.

In this paper, a predictive direct torque control strategy with constant switching frequency of brushless doubly fed machine is presented. Firstly, the classical direct torque control strategy for brushless doubly fed machine has been developed, obtaining the voltage vector table. The vector voltage table has been developed analyzing the flux and torque derivates for each voltage vector as a function of control winding flux angle. In order to employ constant switching frequency, predictive direct torque control is applied. Reduced torque ripple strategy has been implemented to improve the behavior at constant switching frequency. Simulation results show effectiveness of the proposed control algorithm.

Published in:

Industrial Electronics, 2007. ISIE 2007. IEEE International Symposium on

Date of Conference:

4-7 June 2007