电力-通信耦合网络关键节点识别及其保护策略研究  

Identification of Critical Nodes and Their Protection Strategies in Power-Communication Coupled Networks

作　　者：陈端云 唐元春 林毅 CHEN Duanyun;TANG Yuanchun;LIN Yi(State Grid Fujian Electric Power Co.,Ltd.,Fuzhou 350001,China)

机构地区：[1]国网福建电力有限公司,福建福州350001

出　　处：《工业工程》2024年第6期70-81,共12页Industrial Engineering Journal

基　　金：福建省科技计划资助项目(2021Y0072);国网福建省电力有限公司科技资助项目(5213002000CK)。

摘　　要：智能电网已逐步发展为由电网和电力通信网深度耦合的电力-通信耦合网络,通信网节点故障会通过耦合关系影响电力系统,甚至在耦合网络中引发级联故障,因此如何识别并保护关键通信节点是亟待解决的问题。首先,基于电力-通信网络的交互机理,构建电力-通信耦合网络模型,提出一种考虑耦合影响的关键节点识别算法;然后构建电力-通信耦合网络攻防博弈模型,基于耦合网络关键节点攻击与保护博弈过程,提出种群竞争萤火虫算法,对博弈模型进行求解。仿真结果表明,算法生成的最优保护策略能够根据节点重要性合理分配保护资源,降低耦合网络在恶意攻击下的脆弱性,最大限度地保障电力-通信耦合网络安全稳定运行。The smart grid has gradually developed into a power-communication coupled network,where the power grid and the power communication network are deeply integrated.Failures in communication nodes can affect the power system through the coupling relationship,potentially triggering cascading failures in the coupled network.Therefore,identifying and protecting critical communication nodes is an urgent problem to be solved.First of all,based on the interaction mechanism of power-communication networks,a power-communication coupled network model is established,and a critical node identification algorithm considering coupling effects is proposed.Then,an attack and defense game model for the power-communication coupled network is developed.Based on the attack and defense game process of critical nodes in the coupled network,a population competition firefly algorithm is proposed to solve the game model.Simulation results show that the optimal protection strategy generated by the algorithm can reasonably allocate protection resources according to the importance of nodes,reducing the vulnerability of the coupled network under malicious attacks and ensuring the secure and stable operation of the power-communication coupled network to the greatest extent.

关 键 词：耦合网络 攻防博弈模型 级联故障 关键节点识别 节点保护策略 

分 类 号：F407.63[经济管理—产业经济] TP915.853[自动化与计算机技术]