Power distribution network fault early warning and positioning system based on distributed traveling wave online measurement

By introducing adaptive parameter initialization and dynamic sampling rate adjustment technology in the distribution network fault warning and positioning system, the problem that the existing system cannot adapt to changes in the distribution network operating status is solved, and the rapid identification and early warning and precise positioning of distribution network faults are realized, which improves the monitoring accuracy and reliability of the system.

CN119959693AActive Publication Date: 2025-05-09XINXIANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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Patent Information

Application Number
CN202510447803.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2025-05-09
Estimated Expiration
2045-04-10

AI Technical Summary

Technical Problem

The existing distribution network fault identification and positioning system based on distributed travel wave detection cannot dynamically adjust the sampling rate, resulting in low accuracy and reliability of distribution network monitoring, and the inability to quickly identify early warning and accurately locate distribution network faults.

Method used

A distribution network fault warning and positioning system based on distributed traveling wave online measurement is designed, including a traveling wave signal acquisition module, a traveling wave signal processing module, a fault identification warning module and a fault positioning module. Through adaptive parameter initialization and dynamic adjustment of sampling rate, real-time acquisition and processing of fault traveling wave signals in the distribution network are realized.

Benefits of technology

It realizes rapid identification, early warning and precise positioning of distribution network faults, improves the accuracy and reliability of distribution network monitoring, and ensures the effectiveness of grid operation analysis and fault diagnosis.

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Abstract

The invention discloses a power distribution network fault early warning and positioning system based on distributed traveling wave online measurement, and belongs to the technical field of power distribution networks, and the system comprises a traveling wave signal collection module which is configured to collect a power distribution network fault traveling wave signal; the traveling wave signal processing module is configured to process the collected power distribution network fault traveling wave signal and determine a power distribution network fault characteristic traveling wave signal; the fault identification and early warning module is configured to rapidly identify the fault type of the power distribution network according to the fault characteristic traveling wave signal of the power distribution network and perform fault early warning; and the fault position positioning module is configured to accurately position the fault position of the power distribution network according to a double-end traveling wave distance measurement principle. According to the method, the problem that the use effect of the power distribution network is poor due to the fact that rapid identification, early warning and accurate positioning cannot be carried out on the power distribution network fault based on distributed traveling wave online measurement in the prior art is solved. According to the invention, rapid identification, early warning and accurate positioning can be carried out on the power distribution network fault based on distributed traveling wave online measurement, and the use effect of the power distribution network can be improved.
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