A remote maintenance method for power distribution system based on iec61850 standard

Abstract

The invention relates to a power distribution system remote maintenance method based on the IEC61850 standard, and belongs to the technical field of power systems and automation thereof. The method comprises the following steps: (1) a power distribution master station in a power distribution system sends Discover information; (2) the power distribution system acquires configuration information of a power distribution terminal; (3) the power distribution master station obtains real-time measurement data of the power distribution terminal; and (4) a power distribution station generates a measurement point table for the power distribution terminal according to the real-time measurement data of the power distribution terminal. By adopting the method, power distribution network terminal accessing and exiting is realized, the process is full-automatic, and no manual check on a data point table is needed. By adopting the method, a power distribution network terminal can be automatically discovered and registered. The primary topology of a power distribution network is updated automatically when a power distribution terminal logs off a system or fails. Especially, after the power distribution terminal logs off a system or is subject to permanent failure, the system automatically logs the terminal out in time. Thus, real-time updating of the distribution network topology is realized, and accurate information is provided for the relay protection function.

Description

technical field [0001] The invention relates to a remote maintenance method for a power distribution system, which belongs to the technical field of power systems and automation thereof. Background technique [0002] Distribution terminal is a general term for various remote monitoring and control units used in distribution network. The distribution terminal is used to collect, monitor and control various real-time and quasi-real-time information of the distribution network. According to different monitoring objects, it is divided into feeder terminal (FTU), distribution transformer terminal (TTU), and switching station terminal (DTU). The feeder terminal is mainly installed on the column switch on the overhead line of the 10Kv distribution network and the ring network cabinet and branch box on the cable line. The distribution transformer is mainly installed on the low voltage side of the distribution transformer for monitoring. The switching station terminal is mainly in...

AI Technical Summary

Problems solved by technology

[0010] At present, the traditional communication protocol between the power distribution terminal and the power distribution main station only solves the problem of data transmission, and the data lacks the necessary association and description; between the power distribution terminal and the main station, it is necessary to manually check the point table. Heavy workload, low work efficiency, error-prone

At the same time, when the power distribution terminal withdraws from the power distribution system or fails, the power distribution master station cannot log off the power distribution terminal in time, which may easily cause errors in the fault detection of the distribution network

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