Research On Fuzzy Sliding Mode Control And Its Applications In Wind Turbine System

Control is crucial to the efficiency and reliability of wind turbines. Wind energy has lower density, instability and randomicity. Wind turbines have strong nonlinear multivariable with many uncertain factors and disturbances. Fuzzy sliding mode variable structure controller has been applied gradually in many fields because of its advantage of robust and easy realization. Based on the deep research on the wind turbine power system mathematics model and control theory, in order to overcome the blight caused by parameter variant and outside disturbance, three kinds of controllers including of integral fuzzy sliding mode controller, adaptive fuzzy sliding mode controller and integral adaptive fuzzy sliding mode controller are proposed respectively. These proposed controllers are adopted to realize high performance wind turbine system with adaptation. Simulation results indicate that these control approaches are robust and improve tracking accuracy considerably.