计及混合能源共享站的多微网系统双层混合整数规划

Bi-level Mixed Integer Programming of Multi-microgrid System Considering the Hybrid Energy Sharing Station

为解决高比例可再生能源背景下的区域综合能源系统季节性电量不平衡的问题,提出一种计及季节性氢储的混合能源共享站,并以此构建含混合能源共享站的多微网能源系统。随后,为突出能源共享站在季节性电能互补中的作用,提出以联盟微网系统运行成本最低为上层优化目标,系统内净负荷均方差最小为下层优化目标的双层混合整数规划,并对模型的求解过程进行说明。由于能源共享站由联盟微网系统自身建造,各微网之间还存在着合作关系,因此,提出基于交互价值贡献度大小的纳什议价方法,对能源共享站成本及联盟额外利润进行分配。算例结果表明,该模型可有效减少各微网的运行成本和微网内负荷均方差。为解决区域综合能源系统中可再生能源季节性不平衡问题提供参考。

In order to solve the problem of seasonal power imbalance of regional integrated energy system under the background of high proportion renewable energy,a hybrid energy sharing station considering seasonal hydrogen storage is proposed,and a multi-microgrid energy system with hybrid energy sharing station is constructed.Subsequently,in order to highlight the role of energy sharing stations in seasonal power complementarity,a bi-level mixed integer programming is proposed with the minimum operation cost of the alliance microgrid system as the upper optimization objective and the minimum mean square deviation of the net load in the system as the lower optimization objective,and the solution process of the model is explained.Since the energy sharing station is built by the alliance microgrid system itself,there is still a cooperative relationship between the microgrids.Therefore,a Nash bargaining method based on the contribution of interactive value is proposed to allocate the cost of energy sharing station and the extra profit of the alliance.The results show that the model can effectively reduce the operating cost of each microgrid and the mean square deviation of load in microgrid,which provides reference for solving seasonal imbalance of renewable energy in regional integrated energy system.