Predictive torque control of permanent magnet synchronous motor drive with reduced switching frequency

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Conference Proceeding
2010 International Conference on Electrical Machines and Systems, ICEMS2010, 2010, pp. 798 - 803
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A novel model based predictive torque control (MPTC) method is proposed in this paper for permanent magnet synchronous motor (PMSM) drives. By choosing the voltage vector best satisfying the demands of torque and flux, important reduction in torque and flux ripples can be observed compared to conventional DTC. Furthermore, the losses of system can be reduced effectively by incorporating the switching frequency calculation in the cost function, whereas the torque and flux performance only varies slightly. The influences of one-step delay for both DTC and MPTC are investigated. Simulation results are presented to validate the effectiveness of the proposed schemes in this paper.
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