Modeling and simulation of variable-speed direct-driven PMSG wind turbine

摘要

With the growing of electrical energy demand,wind power gains much more potential and plays a important position in energy sectors.In this paper present the dynamic model and control strategy of a direct drive permanent magnetic synchronous generator wind turbines.The PSMG model use d-q synchronous rotating reference frame and the wind turbine is pitch controllable.Three types of controllers,such as PI controller,Nonlinear PI controller for anti-windup,PID controller,present in the paper to analyze their performance in wind turbine.Matlab/Simulink used to verify the presented model and the control method.The model and the control strategy are verified by simulation results,at the same time,the Nonlinear PI controller for anti-windup shows the best performance in simulation progress which can makes up the effects of over-simplifications in modeling.