Modeling And Simulation Of Wind Turbine Generation System Based On DFIG

People widely pay attention to wind energy because it is a regenerated energy. The variant-speed const-frequency (VSCF) wind generation is very important in modern wind power system.The double-fed generator, who is superior to a general AC one in many aspects, and it is the hard core of the wind power system. After the analysis the essential operating characteristics, this thesis makes a study on the steady equivalent circuit and the power flow. The stator flux-oriented vector control system is built to decouple the stator active and reactive power regulating and make controlling of the motor more simple.In the end, the simulation models of all compositions of the wind power system are built up with the software Matlab/Simulink7.0 and simulation experiments are done, whose results show that the models are proper and the VSCF wind power system has nice operating performances.