Active Dispatch Method of Wind Farm with DFIGs Considering Reactive Power Regulation Capability

Based on the analysis of the reactive power regulation capability of wind farm with DFIGs, this paper proposes a method of active power scheduling that maximizes the reactive power limit of wind farms. When the predicted value of the active power output of the wind farm is less than the active dispatch instruction issued by the control center station, power generation is performed according to the principle of maximum wind energy tracking; when the predicted value of the active output is greater than the dispatch instruction, the Lagrangian function method is used to prove that the average distributed active power At power, the reactive power limit of the wind farm with DFIGs is the largest. According to this principle, the active power is distributed, so as to maximize the reactive power regulation capacity of the wind farm. Finally, a simulation analysis is carried out, and the feasibility and effectiveness of the proposed method are verified by comparing with the traditional active scheduling method.