中国电机工程学报2026，Vol.46Issue(1)：87-100,中插7,15.DOI:10.13334/j.0258-8013.pcsee.242197
计及跨域连锁故障的电力信息物理系统N-k协同故障场景筛选双层优化模型
A Bi-level Optimization Model for Selecting N-k Coordinated Fault Scenarios in Cyber-physical Power System Considering Cross-domain Cascading Failures
摘要
Abstract
The classic N-k security analysis method often selects the source fault accident set with the objective of maximizing system impact,ignoring the synergistic amplification effect of cyber-physical interaction and the propagation process of cross-domain cascading failures,resulting in a tendency to be overly conservative.Therefore,the paper first characterizes the changes in system topology and operating states in the source of cyber-physical collaborative faults and cross-domain cascading failures propagation,revealing the impact mechanism of system observability and controllability on cross-domain fault propagation.Secondly,establish a bi-level optimization model for selecting N-k coordinated fault scenarios considering inter-domain cascading failures.The upper layer aims to maximize load loss and identify high-risk cyber-physical collaborative fault scenarios and cross-domain cascading failure propagation paths.The lower layer aims to minimize load loss and make optimal adjustments to controllable generators and loads.Then,a network flow algorithm is used to quickly solve the proposed model.Finally,simulation verifications are conducted on the IEEE 39 bus system and the 500 kV bus system in a Chinese province,and results verify that the proposed model can effectively identify high-risk high-order collaborative fault combinations and cross-domain cascading failure propagation paths in the system;When the scale of communication channel failures is small,controllability plays a dominant role in fault propagation,and priority should be given to increasing backup channels for control services.When the scale of communication channel failures is large,observability plays a dominant role in fault propagation,and priority should be given to increasing backup channels for measurement services.关键词
连锁故障/电力信息物理系统/多阶段双层规划理论/可观性/可控性Key words
cascading failures/cyber-physical power system/multi-stage bi-level programming theory/observability/controllability分类
信息技术与安全科学引用本文复制引用
孙溶佐,蔡晔,曹一家,施星宇,谭玉东,赵一睿..计及跨域连锁故障的电力信息物理系统N-k协同故障场景筛选双层优化模型[J].中国电机工程学报,2026,46(1):87-100,中插7,15.基金项目
国家自然科学基金项目(52277076) （52277076）
湖南省科技创新计划项目(2024RC3163) （2024RC3163）
长沙市杰出创新人才项目(kq2306011).Project Supported by National Natural Science Foundation of China(52277076) （kq2306011）
Science and Technology Innovation Program of Hunan Province(2024RC3163) （2024RC3163）
Outstanding Innovation Talent Project of Changsha(kq2306011). （kq2306011）
