摘要
基于复杂型元胞自动机原理,对电力信息物理系统(CPS)连锁故障特征进行初步分析,将电力物理元件与信息网络元件元胞化,分别建立物理元胞自动机模型和信息元胞自动机模型。在不考虑复杂链路流量平衡约束条件以及信息元胞具体故障事故的情况下,采用元胞的安全漏洞利用难度系数、风险传递概率、跨空间故障传播概率等建立电力CPS连锁故障模型。通过搭建30节点电网所对应的信息网链路拓扑,采用一对一耦合关系对该CPS模型进行仿真,最终输出相应时刻电力系统的故障规模以及可视化的故障分布。最后对比分析在不同初始故障、故障持续时间、CPS耦合强度、信息元胞自愈系数的场景下的故障概率、故障规模以及故障扩散速率,以此对电力CPS的故障预防、诊断提供可行性建议。
Based on the complex cellular automata,this paper makes a preliminary analysis of the characteristics of power CPS cascading failures.The physical cell automata and the information cell automata model are set up respectively.Without considering the constraint conditions of complex link flow balance and the specific fault accidents of information cells,the power CPS cascading failure model is established by using the security vulnerability coefficient,risk transfer probability and cyber physical security risks propagation probability.By setting up the information network link topology corresponding to the Matlab standard 30-node power grid model,the CPS model is simulated with one-to-one coupling relation,and the fault scale and the visual fault distribution at the corresponding moment of the power system are output.At last,the probability of fault,the scale of fault and the rate of fault diffusion are compared and analyzed in the simulation scene of different initial fault,fault duration,CPS coupling strength and the self-healing coefficient of information cell,so as to provide feasible suggestions for fault prevention and diagnosis of power CPS.
作者
杨嘉湜
黄林
刘捷
宋航
刘俊勇
刘友波
YANG Jia-shi;HUANG Lin;LIU Jie;SONG Hang;LIU Jun-yong;LIU You-bo(Information and Communication Company,State Grid Sichuan Province Electric Power Company,Chengdu 610061,China;College of Electrical Engineering and Information Technology,Sichuan University,Chengdu 610065,China)
出处
《电工电能新技术》
CSCD
北大核心
2018年第9期33-41,共9页
Advanced Technology of Electrical Engineering and Energy
基金
国家重点研发计划项目(2017YFE0112600)
