计及风-光-水-火多能协同的电网可再生能源消纳能力评估

Evaluation of Renewable Energy Consumption Capacity in Power Grid Considering the Synergistic Effect of Wind-Photovoltaic-Hydro-Thermal Power

针对电网消纳能力评估问题进行研究,提出一种计及风-光-水-火多能协同的电网可再生能源消纳能力评估方法。首先,构建风-光-水-火多能协同系统框架;其次,给出可再生能源接纳运行风险的定义,并建立可再生能源运行风险模型;最后,基于两阶段鲁棒优化理论提出计及风-光-水-火多能协同的电网可再生能源消纳能力评估模型,并采用列和约束生成(column and constraint generation,C&CG)算法求解。算例结果表明:所提模型可有效控制可再生能源出力不确定集及评估电网可再生能源消纳能力。

This paper studies the problem of power grid absorption capacity evaluation,and an evaluation method of renewable energy consumption capacity of power grid considering wind-photovoltaic-hydro-thermal power multi-energy coordination is proposed.Firstly,the framework of wind-photovoltaic-hydro-thermal power multi-energy cooperative system is constructed.Then,the definition of the operational risk of renewable energy acceptance is given,and the operational risk model of renewable energy is established.Finally,based on the two-stage robust optimization theory,the evaluation model of renewable energy consumption capacity of power grid considering wind-photovoltaic-hydro-thermal power multi-energy cooperation is proposed,and the column and constraint generation(C&CG)algorithm is used to solve the problem.The results of example show that the proposed model can control the uncertainty set of renewable energy output and assess the renewable energy consumption capacity of power grid effectively.This work is supported by Science and Technology Project of State Grid Zhejiang Electric Power Co.,Ltd.(No.5211JY21N001).