基于渗流理论的电–气–信息三网融合系统的鲁棒评估  

Robustness Analysis of Electric-gas-information Coupled System Based on Percolation Theory

作　　者：张巍 王俊翔 ZHANG Wei;WANG Junxiang(Department of Electrical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学机械工程学院,上海200093

出　　处：《电力科学与工程》2020年第8期17-24,共8页Electric Power Science and Engineering

摘　　要：近年来能源互联网的信息化加快,电力–天然气联合系统作为庞大的能源互联体系,时刻面临不同类型的故障。结合能源转化守恒和复杂网络理论,分别构建了电力–天然气联合系统和信息系统的网络模型,并组成电–气–信息三网融合系统;使用节点价值和受损权重的改进渗流理论,分析电–气–信息系统的故障演化机理和系统的整体崩溃过程,并提出了鲁棒性评估指标;最后通过IEEE36节点配电网、18节点天然气管网和64节点信息网构成的模拟三网融合系统进行算例仿真,并根据光伏、风力发电特性随机增强部分节点观察网络变化情况,验证了所提出鲁棒评估方法的正确性和有效性。In recent years,the informatization of energy Internet has been accelerated.As a huge energy interconnection system,the integrated electricity-natural gas system is always facing different types of failures.Based on the conservation of energy conversion and complex network theory,this paper constructs the network models of integrated electricity-natural gas system and the information system respectively,and forms the electric-gas-information system.By using the improved percolation theory of node value and damage weight,the failure evolution mechanism and the whole collapse process of electric-natural gas-information system are analyzed,and the robustness evaluation index is proposed.Finally,an example is given to verify the correctness and effectiveness of the robust evaluation method proposed in this paper by means of the IEEE 36-node distribution network,18-node natural gas network and 64-node information network,according to the characteristics of photovoltaic and wind power generation,and the changes of the network through enhancing some nodes randomly.

关 键 词：能源互联网 电–气–信息融合系统 复杂网络 渗流理论 鲁棒评估 

分 类 号：TM71[电气工程—电力系统及自动化]