A fast self-healing control method for off-line faults of distribution automation terminal units

Abstract

Provided is a rapid offline fault self-healing control method of a power distribution automation terminal unit. The method comprises the offline fault self-detection stage, the abnormity message processing stage, the data transmission testing stage, terminal unit system program and the network card program resetting stage, the stage of judging whether a channel returns to normal or not after the data transmission testing stage, terminal unit system program and network card program resetting stage is carried out, the stage of keeping abnormity message analysis results on file, and the like. According to the rapid offline fault self-healing control method of the power distribution automation terminal unit, on the premise of being without manual intervention, the terminal unit can finish self diagnosis and self repairing on offline faults within the shortest time, and the online rate of the terminal unit is improved remarkably.

Description

technical field [0001] The invention belongs to the technical field of power system distribution automation, and in particular relates to a fast self-healing control method for offline faults of a distribution automation terminal unit, which can significantly improve the online rate of the distribution automation terminal unit. Background technique [0002] Distribution automation is a key technical means to realize the smart grid, and it has significant advantages such as less investment and quick results in improving the reliability of power supply in the grid. It highly integrates computer technology, communication technology and control technology into modern equipment, and can monitor the operation status of distribution network equipment in real time. When the power grid fails, it can automatically locate the fault, reducing the time to find the fault; through remote control, it can reduce the fault. Isolation of operating time; through standardized emergency repairs, ...

AI Technical Summary

Problems solved by technology

[0005] 1. At present, once the terminal unit has an offline fault, it can only rely on manual on-site processing, and it does not have self-diagnosis and self-repair functions.

[0006] 2. Since the distribution of power distribution terminal units has the characteristics of many points and wide areas and harsh environments, manual processing must take into account traffic factors and site environment restrictions

The first is traffic safety, especially in windy, sandy, rainy and snowy weather (often a period of high incidence of automation terminal unit failures), muddy and slippery roads, resulting in an increase in the traffic accident rate

In addition, because some power distribution terminal units are installed on the power distribution room and poles, and lack direct physical isolation from the primary high-voltage equipment on site, it is easy for maintenance personnel to stray into dangerous areas and avoid touching live equipment, resulting in electric shock accidents

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