A Nonlinear Control Method for the Power Regulation of the Wind Generator System in the Wind Farm

In this paper, tracking differentiator based nonlinear controller is designed for the wind generator system to follow the request of power regulation from the centralized wind farm controller. To avoid the setpoint jump when wind generator system receives the power reference specified by the wind farm level controller, the transient profile is generated through the tracking differentiator along with the reference value. Then, based on the Lyapunov asymptotical theory, the stable nonlinear controller based on dynamic surface control is designed for the power regulation of the individual wind generator system. Simulation cases are studied to demonstrate the performance of the proposed controller and the efficiency of the tracking differentiator for power regulation in the wind farm.