Traveling wave positioning terminal optimization configuration method based on simulated annealing algorithm

By using a multi-objective robust optimization model based on simulated annealing algorithm and a hybrid dream-simulated annealing algorithm, the problems of subjectivity and resource waste in the configuration of traveling wave positioning terminals are solved, and the optimal configuration of terminals and efficient fault location in the distribution network are realized.

CN122203232APending Publication Date: 2026-06-12XIANGYANG POWER SUPPLY COMPANY OF STATE GRID HUBEI ELECTRIC POWER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIANGYANG POWER SUPPLY COMPANY OF STATE GRID HUBEI ELECTRIC POWER
Filing Date
2026-03-12
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

The current configuration of traveling wave positioning terminals mainly relies on engineering experience and lacks systematic mathematical modeling and quantitative evaluation. This results in highly subjective configuration schemes, and the existing technology fails to distinguish the importance differences of power grid lines, leading to resource waste or low positioning success rates.

⚗Method used

A multi-objective robust optimization model based on simulated annealing algorithm is adopted. The distribution network is abstracted into an undirected connected graph through graph theory. The hybrid dream-simulated annealing algorithm is used for solving the problem. A multi-dimensional objective function is established that comprehensively considers equipment cost, installation cost, communication link cost and fault unobservability penalty. Full coverage constraint, N-1 redundancy constraint and investment budget constraint are set to output the optimal terminal configuration scheme.

🎯Benefits of technology

It achieves the minimization and optimal economy of traveling wave positioning terminal configuration, improves positioning success rate, reduces resource waste, and provides a complete chain of engineering closed-loop planning and operation and maintenance.

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Abstract

This invention pertains to the field of power grids, and particularly relates to an optimized configuration method for traveling wave positioning terminals based on simulated annealing algorithm. S1. Establish a multi-objective robust optimization mathematical model: abstract the distribution network as an undirected connected graph, with multi-dimensional objective functions including communication link cost and unobservable fault penalties, and establish key constraints such as full coverage constraint, N-1 redundancy constraint, and investment budget constraint; S2. Design and execute a hybrid dream-simulated annealing algorithm solution model; establish a fitness function through parameter initialization, and combine the Metropolis local search criterion of simulated annealing with the periodic global perturbation of the dream mechanism in the main loop; S3. Output the optimal solution as the final configuration scheme for the traveling wave positioning terminal; establish a triple termination criterion including temperature threshold, number of iterations, and solution convergence status to ensure that the algorithm terminates in time when the traveling wave positioning terminal configuration reaches the minimum optimal value, outputting a configuration scheme that meets the requirements for observable faults across the entire network and is economically optimal.
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