基于能源集线器的微能源网能量流建模及优化运行分析  

Energy Flow Modeling and Optimal Operation Analysis of Micro Energy Grid Based on Energy Hub

作　　者：马腾飞[1] 吴俊勇[1] 郝亮亮[1] 李玉君 闫华光[2] 李德智[2] 陈宋宋[2] 

机构地区：[1]北京交通大学电气工程学院,北京市海淀区100044 [2]中国电力科学研究院,北京市海淀区100085

出　　处：《电网技术》2018年第1期179-186,共8页Power System Technology

基　　金：国家电网公司科技项目(面向客户侧能源互联的智能用电灵活接入与互动服务技术研究,YDB17201700249)~~

摘　　要：讨论了微能源网的概念,提出了全新的子能源集线器建模结构,包括集电器,集热器和集冷器;该结构考虑了储电、蓄冷、储热3种储能装置,可以实现能量的汇集、分配及存储;对能源集线器进行了详细的建模,并总结给出了广义储能装置的通用模型;提出一种实时电价模型,并以此建立需求响应模型;综合考虑微能源网能耗成本和环境成本,建立了微能源网的优化调度模型,计算分析了不同场景下微能源网中电、热、冷、气能源的优化调度结果,对提出的建模方法及优化调度模型的合理性和实用性进行了验证。The concept of micro energy grid is discussed and a novel sub-energy hub structure including power hub, heating hub and cooling hub is put forward in this paper. The sub-energy hub structure integrating electricity, cooling and heating energy storage devices, can implement functions of collection, allocation and storage of energy. Besides, a detailed model of energy hub is established and a general model for energy storage device is given. A real time pricing model is proposed and a price-based demand model is established based on it. To minimize daily operation cost, a day-ahead dynamic optimal operation model is formulated considering energy cost and carbon emission cost. Numerical simulation results indicate that the proposed energy flow modeling and optimal operation method are universal and effective over entire energy dispatching horizon based on optimal dispatch results in different scenarios.

关 键 词：能源互联网 微能源网 能源集线器 需求响应 优化运行 

分 类 号：TM721[电气工程—电力系统及自动化]