In this paper, a control approach for direct control of the wind turbine torque based on a doubly-fed induction generator using space vector modulation and matrix convertor control method is presented and also evaluated. The goal of many conventional torque control methods is creating a sinusoidal current in input and output sides. In the conventional direct torque control method, despite the proper performance in transient and steady states, the switching frequency is not constant. However in this paper, using the estimative method and direct torque control method, a constant switching frequency is obtained. In addition, fast dynamic response and wind turbine control are provided in the proposed control method. This paper compares the theoretical and operational complexities of direct torque control using space vector modulation and matrix convertor method. In this paper, the direct torque control approach is simulated using matrix convertor and space vector modulation methods for a wind turbine based on a doubly-fed inductive generator and the results of simulations, using MATLAB-SIMULINK software, are discussed under different operational conditions and in terms of theoretical complexity, load current quality, dynamic response, sampling frequency, switching frequency and presence of resonance in the input filter.
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