基于多能源协同的微能网群能源转供优化模型

An Optimal Energy Transfer Model Based on Multi-Energy Collaboration in Micro-Energy Network Group

微能网针对用户的用能需求特点和本地资源条件,可实现分布式能源生产的互补利用。为实现微能网群的高效运行,建立了一种基于多能源协同的微能网群能源转供优化模型。首先阐述了微能网群的概念并建立基于外部能源集线器互联的微能网群基本架构。其次建立了基于内部能源集线器的微能网模型,并在其基础上进一步建立了微能网群的能源转供优化模型。然后将该模型进一步细分为2个运行阶段:微能网内部的多能源转供优化和微能网之间的多能源转供优化。第1阶段是在单个微能网层面解决某种特定能源的短缺问题,而第2阶段是在第1阶段未能完全解决能源的短缺问题时,通过多个能源集线器的协调,从微能网群层面解决多种能源的短缺问题。最后,以一个包含电、气、热/冷负荷和外部能源集线器的系统对所建立模型进行了验证。

Micro-energy network realizes the complementary of distributed energy production according to the characteristics of users energy demand and local resource conditions.In order to realize the efficient operation of micro-energy network group,this paper proposes an optimal energy transfer model based on multi-energy collaboration in micro-energy network group.The concept of micro-energy network group is given and the basic structure of micro-energy network group based on the interconnection of external energy hubs is first established.Then,the micro-energy network model of internal energy hub and optimal energy transfer model are established.The optimal energy transfer model of micro-energy network group is subdivided into two operation phases,the multi-energy transfer optimization within micro-energy network and between micro-energy network.Phase 1 is to address the problem of energy shortage at the micro-energy network,while the phase 2 is to solve the problem that phase 1 failed to address through the coordination of multiple energy hubs in the micro-energy network group.Finally,the model is validated by a system including electricity,gas,heat/cooling load and external energy hub.