A New Fuzzy Direct Torque Control Strategy for Induction Machine Based on Indirect Matrix Converter

In this paper, a new fuzzy space vector modulation direct torque control strategy for induction machine based on indirect matrix converter is proposed. In the rectifier stage a space vector modulation strategy is employed. In the inverter stage two fuzzy logic regulators used to replace the classical PI regulators in PWM direct torque control method. In this method, the input current is nearly sinusoidal and the input displacement angle is adjustable. Using this control strategy, the advantages of indirect matrix converter and direct torque control method are combined. The performance of the proposed drive system is evaluated through digital simulation using MATLAB-SIMULINK package and simulation results are used to verify the effectiveness of the proposed strategy and support the analytical results.

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