| 引用本文: | 于群,陈佳泰,曹娜,何剑,屠竞哲,张一驰.基于异质元胞自动机的电力信息物理系统仿真模型[J].电力自动化设备,2025,45(2):185-192. |
| YU Qun,CHEN Jiatai,CAO Na,HE Jian,TU Jingzhe,ZHANG Yichi.Simulation model of cyber-physical power system based on heterogeneous cellular automata[J].Electric Power Automation Equipment,2025,45(2):185-192. |
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| 摘要: |
| 为了探究电力信息物理系统的运行特性以及风险演化特征，考虑现代电网跨区域异质互联、信息化的特征，建立基于异质元胞自动机的电力信息物理系统仿真模型。采用异质元胞自动机分别对电力网和信息网进行建模，基于电网线路、变压器等元件的负载率以及潮流容限，制定电力网内的故障传播规则，以信息网节点之间的最短路径为基础，定义信息网内的故障传播数学模型。在构建随机分布式拒绝服务网络攻击和蓄意分布式拒绝服务网络攻击情景的基础上，以IEEE 39节点和IEEE 118节点系统为例，仿真模拟电力信息物理系统遭受网络攻击时的运行状态以及电力网、信息网在不同耦合程度下遭受网络攻击时的损失负荷和损失节点数。仿真结果表明：攻击者知晓电力信息物理系统的网架结构越清晰，越能实施精准攻击，从而使系统损失最大化；电力网和信息网的耦合程度越紧密，系统遭受网络攻击后的损失越严重，验证了所建模型的合理性和可行性。 |
| 关键词: 电力信息物理系统 异质元胞自动机 故障传播规则 网络攻击 耦合程度 |
| DOI：10.16081/j.epae.202411023 |
| 分类号:TM743 |
| 基金项目:国家电网有限公司总部科技项目(5100?202155482A?0?5?ZN) |
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| Simulation model of cyber-physical power system based on heterogeneous cellular automata |
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YU Qun1, CHEN Jiatai1, CAO Na1, HE Jian2, TU Jingzhe2, ZHANG Yichi2
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1.School of Electrical and Automation Engineering, Shandong University of Science and Technology, Qingdao 266590, China;2.China Electric Power Research Institute, Beijing 100192, China
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| Abstract: |
| In order to explore the operation characteristics and risk evolution characteristics of cyber-physical power system, a simulation model of cyber-physical power system based on heterogeneous cellular auto-mata is established considering the modern power grid’s characteristics of cross-regional heterogeneous interconnection and informatization. Heterogeneous cellular automata are used to model power network and information network respectively. Based on the load rate and power flow tolerance of lines, transformers and other components in the power network, the fault propagation rules of power network are formulated. Based on the shortest path between nodes in the information network, the mathematical model of fault propagation in information network is defined. On the basis of constructing random and intentional distributed denial of service network attack scenarios, taking IEEE 39-bus and IEEE 118-bus systems as examples, the operation state of cyber-physical power system when it is subjected to network attacks is simulated, the loss load and lost node number when the power network and information network are subjected to network attacks under different coupling degrees are also simulated. The simulative results show that, the more clearly an attacker knows the grid structure of the cyber-physical power system, the more accurate attacks can be carried out, thus maximizing the system loss. The closer the coupling between power network and information network, the more serious the loss of the system after network attacks, thus verifying the rationality and feasibility of the established model. |
| Key words: cyber-physical power system heterogeneous cellular automata fault transmission rules network attack coupling degree |
