储能是促进新能源消纳的重要手段,其面向收益的运行决策受多种因素制约。针对储能电站与风电集群合作运行决策与收益分配问题,该文提出了基于纳什谈判理论的储能电站与风电集群合作运行日前-实时决策优化方法。结合储能电站与风电集群独立运行模型计算纳什谈判破裂点,日前阶段构建基于纳什谈判理论的储能电站与风电集群合作运行模型,并将其等效转化为联盟效益最大化和收益分配两个子模型,分别求解联盟最优运行决策与收益分配问题,风电集群中各风电场收益采用Shapley值法进行分配。实时阶段根据储能电站实时荷电状态(state of charge,SOC)与风电超短期功率预测结果滚动优化联盟运行决策。风电集群与储能合作运行算例分析表明,储能和风电集群在合作运行后收益分别提升7.23%和1.45%,验证了所提方法的有效性,能够在保证各主体参与公平性和收入分配合理性的同时,实现联盟整体收益的最大化。
Abstract
Energy storage is an important means to promote new energy consumption
and its revenue-oriented operational decision-making is constrained by multiple factors. Aiming at the problem of cooperative operation decision-making and revenue allocation between energy storage power station and wind power cluster
this paper proposes a day-ahead and real-time decision-making optimization method for cooperative operation of energy storage power station and wind power cluster based on Nash negotiation theory. The breaking point of Nash negotiation is calculated by combining the independent operation model of energy storage power station and wind power cluster
an energy storage power station and wind power cluster cooperative operation model is constructed for the day-ahead stage based on the Nash negotiation theory
and is translated into two sub-models of the alliance benefit maximization and revenue allocation equivalently to solve the alliance optimal operational decision-making and revenue allocation problem’s respectively; moreover
the revenue of each wind farm in the wind power cluster is allocated by using the Shapley value method. The alliance operation decision on a rolling basis is optimized for the real-time stage according to the real-time SOC status of the energy storage power station and the ultra-short-term power prediction results of wind power. The example analysis of the cooperative operation of wind power cluster and energy storage shows that the benefits of energy storage and wind power cluster increase by 7.23% and 1.45%
respectively
after the cooperative operation
and the effectiveness of the proposed method is verified
which can maximize the overall benefits of the alliance while guaranteeing the fairness of the participation of each subject and the reasonableness of the income distribution.