Power dispatching tracking control of wind turbine considering maximum and limited power generation below rated wind speed

2019 2nd International Conference on Advanced Materials, Intelligent Manufacturing and Automation

Wang, Huipan^1 ; Hu, Yang^1

School of Control and Computer Engineering, North China Electric Power University, Beijing

102206, China^1

关键词: Control strategies;    Power control strategies;    Power dispatching;    Torque compensation;    Tracking controls;    Utilization efficiency;    Wind power curtailments;    Wind power generation systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/569/4/042015/pdf
DOI  :  10.1088/1757-899X/569/4/042015

来源: IOP

【 摘 要 】

Wind turbines should respond to power dispatching of power grid at all times. According to this demand, this paper puts forward a set of feasible power control strategies below rated wind speed. Firstly, the operation state of wind turbine is divided into two working modes: maximum power generation and wind power curtailment generation. Different control strategies are adopted in different working conditions. Under the mode of maximum power generation, the model predictive control (MPC) algorithm is used to give a torque compensation gain. The MPC controller not only improves the utilization efficiency of wind energy, but also reduces the mechanical load. Under the mode of wind curtailment, a hybrid tracking control strategy of giving priority to torque control than pitch regulation is adopted. It reduces the frequency and amplitude of the pitch mechanism greatly. By comparing the simulation results under various wind speeds, it is found that the proposed power control strategy can adapt to different power dispatching scenes, and can respond to power dispatching with greater performance. It is very significant for the improvement of wind power generation system.