METHOD FOR ACTIVELY OPTIMIZING, ADJUSTING AND CONTROLLING DISTRIBUTED WIND POWER PLANT PROVIDED WITH ENERGY-STORAGE POWER STATION

摘要

A method for actively optimizing, adjusting and controlling a distributed wind power plant provided with an energy-storage power station, which relates to the constraint of the wind power grid access guide rule on the upper and lower limits of the active power output, setting a constraint condition by the maximum and minimum limit values of single power generation, and establishing the constraint condition of the active power output according to the single power generation characteristics of the wind power and energy-storage power supply. In accordance with the external conditions of the operation of the wind power plant, the operation is divided into a power rationed operation and non-power rationed operation, wherein the power rationed operation has the optimization objectives that the variable pitch control load and line loss are minimal and the frequency fluctuation is minimal; and the non-power rationed operation has the optimization objectives that the maximum wind energy capture rate and line loss are minimal and the frequency fluctuation is minimal, and uses a multi-objective layered optimization problem as an objective function. A particle swarm algorithm is used to obtain a solution, so that the wind power active power consumption which is output by the action of an energy-storage system minimizes the stable output, thereby achieving the effective joining of the energy-storage system with the existing scheduling operation mode, and achieving the best economic benefit at the same time.