Based on double-fed wind turbine during operation, with the change in working conditions, the power converter should base on some requirements, such as a two-way flow of energy ,AC-DC-AC conversion high efficiency ,the DC link voltage and so on . And the power conversion should also base on the three-phase PWM voltage type (VSR) rectifier ,analyzing the principles of PWM rectifier, establishing the inverter mathematical model in Three Static Coordinate system, applying the voltage vector oriented control technology and the method of modulation of SVPWM to build the power converter system. By doing the simulated experiments of Sim Power Systems and Simulink, we affirm that the control method is feasible enough and has many features, such as making DC link voltage stay in stability, making two-way conversion of energy in the motor control network side machine side come true, and possessing the unity factor.
