Power distribution system weak link identification method and device, electronic equipment and program product

By constructing a disaster scenario set and a maximum power supply capacity model, and combining line fault probability and network structure, weak links in the power distribution system are identified. This solves the problem that existing technologies have failed to effectively combine the interaction between physical structure and operating status, thus addressing the technical problems of power distribution system vulnerability assessment and improving the accuracy of power distribution system assessment and the timeliness of emergency decision-making.

CN121566451APending Publication Date: 2026-02-24STATE GRID BEIJING ELECTRIC POWER CO +2
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Patent Information

Application Number
CN202511694626.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-18
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing technologies fail to effectively combine the interaction between physical structure and operating status when assessing the vulnerability of power distribution systems, resulting in inaccurate assessment results that are difficult to use for real-time monitoring and emergency decision-making.

Method used

By constructing a disaster scenario set, analyzing the probability of line faults, combining the maximum power supply capacity model and network structure, calculating component risk parameters, and integrating state vulnerability and structural fragility indicators, weak links in the power distribution system can be identified.

Benefits of technology

It enables a more accurate reflection of the true risks of the power distribution system, improves the accuracy of assessment results and the timeliness of emergency decision-making, and supports the rapid assessment of large-scale power distribution systems and the effective deployment of emergency resources.

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Abstract

The invention discloses a weak link identification method and device for a power distribution system, electronic equipment and a program product, and relates to the field of power distribution systems.The method comprises the steps that classified typical disaster scenes and line fault probabilities in the typical disaster scenes are analyzed; evaluating a power supply operation state of the power distribution system after each typical disaster scene occurs by using a maximum power supply capability model, calculating element risk parameters of the power distribution system based on the power supply operation state and the line fault probability, and weighting and calculating a state weakness index by combining the element risk parameters of the power distribution system and scene weight parameters; and calculating a structure vulnerability index based on the centrality index of the node and the scene weight parameter weighting, fusing the state vulnerability index and the structure vulnerability index, and identifying a node weak link in the power distribution system. According to the invention, a technical problem of low accuracy of an evaluation result because only evaluation of a physical structure of the power distribution system is carried out in weak link evaluation of the power distribution system in related technologies is solved.
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