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In order to suppress the torque and flux ripples with direct torque control (DTC) method of matrix converter, this paper proposed a modified MC-DTC based on a sub-region fed permanent magnet synchronous motor (PMSM) drive systems. With the proposed method, According to amplitude of the output voltage vector of MC, output voltage vectors are divided into large, medium, small and zero vector these four...
Torque ripples due to cogging torque, current measurement errors and non-sinusoidal flux distribution restrict application of PMSM in direct drive system. In this paper, a method based on PI type iterative learning control (ILC) is presented to suppress the ripple. Tuning method of the controller is given in detail, which ensures stability and convergence of the system. Effect of controller parameters...
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