考虑物理-信息虚拟连接的电力信息物理融合系统的脆弱性评估

发布时间：2018-09-01 10:32

【摘要】：不断发展的自动化与信息技术的广泛应用明显提高了现代电力系统的运行水平,电力信息系统与电力物理系统的融合也逐步广泛和深入,从而进化为电力信息物理融合系统(CPPS)。在CPPS中,信息设备的故障会影响物理系统的安全可靠运行,而外部对物理与信息元件的攻击则可能导致停电事故。在此背景下,为了分析物理元件与信息元件的交互影响,将CPPS抽象模拟为物理节点、物理-物理连接、信息节点、信息-信息连接与信息-物理连接5类元素,并在此基础上评估信息系统受损对物理系统运行的影响。在博弈论的框架下构建了双层数学规划模型分别对物理与信息环节进行了防御资源分配,用于量化存在假想攻击下系统中各环节的重要程度。以修改的IEEE 14节点系统为例进行了仿真计算,结果验证了所提方法的可行性与有效性。
[Abstract]:The continuous development of automation and the extensive application of information technology have obviously improved the operation level of modern power system, and the integration of power information system and electric power physical system has gradually been widely and deeply integrated, thus evolving into the electric power information physics fusion system (CPPS). In CPPS, the failure of information equipment will affect the safe and reliable operation of physical system, while external attacks on physical and information components may lead to blackouts. In this context, in order to analyze the interaction between physical components and information components, CPPS is abstracted as five kinds of elements: physical node, physical-physical connection, information node, information-information connection and information-physical connection. On this basis, the impact of information system damage on the operation of the physical system is evaluated. Under the framework of game theory, a bilevel mathematical programming model is constructed to allocate defense resources to physical and information links, which is used to quantify the importance of each link in the system under hypothetical attack. Taking the modified IEEE 14 bus system as an example, the simulation results show that the proposed method is feasible and effective.
【作者单位】：浙江大学电气工程学院;香港中文大学(深圳)理工学院;广东电网有限责任公司电力调度控制中心;
【基金】：国家高技术研究发展计划(863计划)资助项目(2015AA050202) 广东电网有限责任公司科技项目(GDKJQQ20153001)~~
【分类号】：TM732

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