Control of doubly-fed wind power generation system based on two-stage matrix converter

For the shortcomings of the traditional converter in variable-speed constant-frequency doubly-fed wind power generation system, this paper cites two-stage matrix converter (TSMC) as the excitation source of it. Based on the stator flux linkage oriented, the control system of the doubly-fed wind power generation is established. The TSMC input filter introduces a phase difference between the input current before and after the filter, which reduces input power factor of grid side, an adaptive input power factor control method is proposed to reduce the input power factor angle. With the principle of proportional resonant (PR) controller, PR control strategy used in rotor converter is proposed. In this method, the active and reactive current component in the vector control strategy is transformed in the stationary frame to adjust and to achieve decoupling the active and reactive power. The simulation results demonstrate the correctness and availability of the scheme presented in this paper.