变速恒频双馈风力发电系统仿真研究

his paper introduced the VSCF wind power generation system based on doubly-fed induction generator, described the operation theory of the system, used vector control method of the stator flux Chain-oriented to realize the active power and reactive power decoupling control after analyzed the dynamic mathematical model of DFIG, and thus achieved the purpose of tracking maximum wind power. In the study of rotor excitation power, analyzed the characteristics of dual-PWM converter 、the similarities and differences of the rotor side converter and grid-side converter in the function and control, focused on the control methods of gird-side converter based on grid-based voltage-oriented vector control technology, in order to achieve unity power factor and control dc link voltage. The results of simulation using Matlab proved the correctness and effectiveness of the control method.