风-光热-光伏打捆发电系统并网效益分析

风电和光伏出力具有间歇性和波动性,为了促进其消纳,可将风电场、光热电站和光伏电站组成联合发电系统,打捆输出。利用光热电站出力的可调度性,对联合出力进行调节。分析了风-光热-光伏打捆发电系统运行模式,以联合系统并网效益最大为目标,建立联合运行数学模型。在计算并网效益时,考虑了打捆发电系统的度电成本和电网峰谷电价差。最后通过仿真对所建立的数学模型进行验证,并采用粒子群算法对模型进行优化求解。

Analysis of Grid-connected Benefit of Wind-Photothermal-Photovoltaic Baling Power Generation System

Wind power and photovoltaic output have intermittent and volatility,in order to promote its consumption,wind farms,photothermal power stations and photovoltaic power plants can be combined to form a combined power generation system,bundled output.The combined output is adjusted by using the output schedulability of the optical thermal power station.This paper analyzes the operation mode of wind-photothermal-photovoltaic bundled power generation system,and establishes the mathematical model of combined operation aiming at the maximum benefit of grid connection of combined system.In calculating the grid-connected benefits,the cost per kilowatt-hour of the bundled power generation system and the peak-valley electricity price difference of the grid are considered.Finally,the established mathematical model is verified by simulation,and the particle swarm optimization algorithm is used to optimize the model.