A centralized self-healing solution method for a main station of a line containing distributed power sources

By collecting signals, configuring self-healing strategies, and combining them with topology model analysis, centralized self-healing of distributed power supply lines at the main station was realized. This solved the shortcomings of existing feeder self-healing modes in terms of outage range and time, improved the reliability and accuracy of self-healing actions, and enhanced power supply reliability.

CN116054098BActive Publication Date: 2026-07-24GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
Filing Date
2022-12-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing feeder self-healing modes have shortcomings in meeting the requirements of small power outage range and short power outage time for power distribution line faults. In particular, centralized, local, and collaborative modes each have their own deficiencies in terms of operation and maintenance costs, power outage range, and response time.

Method used

The system collects signals from the outgoing switches and distribution terminals of the acquisition station, configures an unconventional centralized self-healing strategy for the master station containing distributed power supply lines, analyzes the master station topology model, remotely controls the opening and closing of the distributed power supply grid connection switch, isolates the fault area and closes the tie switch, and introduces a distributed power supply grid connection switch solution.

Benefits of technology

It improves the reliability and accuracy of automatic execution, optimizes the feeder self-healing action, and enhances power supply reliability.

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    Figure CN116054098B_ABST
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Abstract

The application discloses a main station centralized self-recovery solution method for a line containing a distributed power supply, which comprises the following steps: collecting the outgoing line switch action signal of a station and the distribution terminal signal, and configuring different centralized self-recovery strategies for the line containing the distributed power supply; after analyzing the main station topological model, issuing a remote control command to separate the distributed power supply grid-connected switch and close the outgoing line switch of the station; then, isolating the fault area and closing the tie switch according to the secondary tripping of the outgoing line switch of the station; and finally, pushing out the distributed power supply grid-connected switch scheme. The application can improve the reliability and correctness of automatic execution, further optimize the action effect of the feeder self-recovery, and improve the power supply reliability.
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