广东电力2025，Vol.38Issue(1)：41-50,10.DOI:10.3969/j.issn.1007-290X.2025.01.005
考虑系统状态与故障应对能力的关键线路综合辨识
Comprehensive Identification of Critical Lines Considering System State and Fault Response Capability
摘要
Abstract
Existing research commonly focuses on identifying critical lines from the perspective of power system topology and physical operation,while lacking consideration of the active resilience capability of systems under fault conditions.To this end,a method for identifying critical transmission lines in power grids that integrates system state and fault response capability is proposed.The aim is to comprehensively evaluate the importance of transmission lines by considering multiple influencing factors.Firstly,considering the economic and rapid nature of blocking control measures,a min-max response capability model and an efficient solution method based on temporal and spatial dimensions are proposed to represent the system's response capability after a line fault.Then,taking into account the system's topological structure,power flow distribution state,and fault response capability,a comprehensive identification index and method that integrates multiple factors are proposed to fully assess the impact of line faults on the system.Finally,the proposed method is simulated and analyzed using the IEEE 39 bus system.The results show that identifying high-risk critical lines through sequential disconnection can significantly reduce the network efficiency of the system and tripping the top 10 critical lines in order can reduce the network efficiency to below 40%,verifying the reasonableness and effectiveness of the proposed method.关键词
关键线路/故障应对能力/拓扑联系度/加权潮流分布熵/输电网Key words
critical line/fault response capability/topological connectivity/weighted flow distribution entropy/transmission network分类
动力与电气工程引用本文复制引用
邓婧,曾庆彬,李钦豪..考虑系统状态与故障应对能力的关键线路综合辨识[J].广东电力,2025,38(1):41-50,10.基金项目
国家自然科学基金项目(52177085) （52177085）
