考虑拓扑规划与管线选型的区域综合能源系统优化配置方法

区域综合能源系统是一种集多种能源生产与转换为一体的，具有能源利用效率高、多能源协调互补以及清洁低碳为特征的综合性能源生产形式。研究综合能源系统的优化配置方法有助于系统节能减排、保障地区用能安全以及促进可再生能源大幅消纳。本文建立了含拓扑规划的区域综合能源系统优化配置模型。其基本思路是以分布式能源站为基本供能单元，通过引入电力线路与输热管道的选型和容量配置约束，将分布在不同地区的能源系统连接在一起；其次，考虑了管网损耗、容量上限以及电压幅值等因素影响，以经济性最优为目标，综合考虑投资成本、替换成本与设备残值收益，构建了面向多区域能源互联系统的混合整数线性规划模型。算例测试结果表明，本文建立的规划模型可以有效减少冗余设备的安装容量，提高规划方案的经济性以及系统的综合能效，对于多区域综合能源系统的规划及建设具有一定的参考价值。

Optimal Configuration Method of Regional Integrated Energy System Considering Topology Planning and Pipeline Selection

Regional integrated energy system(RIES) is a kind of comprehensive energy production form which integrates multiple energy resources, and has the characteristics of high energy efficiency, multi energy complementarity, and low carbon emissions. The research on the optimal allocation method of RIES is helpful to energy conservation and emission reduction, ensure regional energy security and promote the substantial consumption of renewable energy. In this paper, a regional integrated energy system optimal allocation model with topology planning was established. The basic idea is to use distributed energy station as the basic energy supply unit, and connect the energy systems distributed in different regions by introducing the selection and capacity configuration constraints of power lines and heat transmission pipelines; then, taking into account the influence of factors such as pipeline loss, capacity limit, and voltage amplitude, a mixed integer linear programming model for multi region energy interconnection system was constructed with the objective of economic optimization. The objective function includes investment cost, replacement cost and equipment residual income. The test results show the planning model can effectively reduce the installation capacity of redundant equipment, improve the economy of the planning scheme and the energy efficiency of the system, which has a certain reference value for the planning and construction of regional integrated energy system.