SoS架构下多微电网系统经济运行与贡献度评估

ASSESSMENT OF ECONOMIC OPERATION AND CONTRIBUTION DEGREE OF MULTI-MICROGRID UNDER SYSTEM OF SYSTEMS ARCHITECTURE

介绍一种基于SoS的多微电网体系结构构建方法。在此基础上,建立多微电网系统两阶段经济优化模型和多微电网体系涌现功能贡献度评估模型。首先,在日前优化阶段,根据日前出力及负荷预测信息,利用CPLEX求解微电网最低日运行成本及缺余电信息,为接下来的实时优化阶段提供可靠的调度数据。其次,在实时优化阶段,基于合作博弈理论以多微电网运营成本最低为目标,充分考虑负荷侧的需求响应,促进群内能量共享水平,提升多微电网体系的经济效益。最后,根据多微电网体系运行成本最小求得SoS架构下的多微电网涌现收益,建立贡献度评估模型,采用Shapely算法对涌现收益公平分摊。通过算例仿真,验证模型的有效性。

This paper introduces a method of building a multi-microgrid architecture based on SoS.On this basis,a two-stage economic operation model of a multi-microgrid system is established and a contribution evaluation model of a multi-microgrid systems emergence function is proposed.Above all,in the pre-optimization stage,according to the output and load forecast information,the CPLEX is used to solve the minimum daily operating cost and power shortage and residual power information of the microgrid,providing reliable dispatching data for the next real-time optimization stage.In the second place,in the real-time optimization stage,based on the cooperative communication theory,with the lowest operating cost of multi-microgrid as the goal,the demand response is fully considered on the load side to promote the energy sharing level within the group and improve the economic efficiency of the microgrid group.In the end,a contribution evaluation model is established according to the lowest operating cost of the multi-microgrid system to obtain the emerging benefits of the SoS architecture,and the Shapely algorithm is used to fairly share the emerging proceeds.The validity of the model is verified by numerical examples.