Distribution network fault processing method based on 5G communication technology

Abstract

The invention provides a distribution network fault processing method based on 5G communication technology. In view of the shortcomings of conventional various distribution network fault processing modes, such as long fault processing time, high construction cost, and poor selectivity, the distribution network fault processing method of the invention, by means of the characteristics of low latency, high bandwidth, stable transmission of 5G communication, uses the 5G communication as a fault signal transmission channel, comprehensively takes account of the technical indicators of 5G communication, such as the transmission delay, the packet loss rate and the like, achieves high reliability, good selectivity and good fault tolerance based on fault information interactive transmission and logical strategy between terminals, realizes fast fault location and isolation of feeder line faults within 200 milliseconds and automatic restoration of power supply in non-fault areas, realizes the transition of the distribution network fault processing from a minute level to a millisecond level, achieves smaller area of power outages, less number of power outages, shorter call waiting time, and significantly improves the reliability of a distribution network.

Description

technical field [0001] The invention relates to the technical field of power supply terminals, in particular to a distribution network fault handling method based on 5G communication technology. Background technique [0002] After a fault occurs in the distribution network, it generally relies on the distribution automation system to achieve fault isolation and self-healing. The commonly used modes are centralized and local. The local type mainly includes voltage time type, overcurrent differential type, and voltage-current time type. Type, self-adaptive, optical fiber intelligent distributed. [0003] The centralized fault processing mode sends the collected signals of the terminals to the master station of distribution automation. The master station analyzes and determines the fault location according to the distribution network topology and terminal information. For the three-remote terminal, it can automatically / manually control the switches on both sides of the fault po...

AI Technical Summary

Problems solved by technology

The voltage time type (including close-on quick break), voltage-current time type, and self-adaptive type all realize the mutual cooperation between the switches through the logic setting of the switch itself, and realize fault identification, isolation, and self-healing. This method does not depend on communication, but The fault isolation and recovery time is long, and 1-2 times of power outage of the whole line is required, which affects the quality of power supply and has a great impact on the system and equipment

[0005] The extremely poor over-current type realizes on-site isolation of faults by setting the current and time settings between the terminals. This method is difficult to set the value, and the delay of the switch action of the outlet in the station is long, which may easily cause the scope of the accident to expand.

Optical fiber intelligent distribution relies on optical fiber communication to realize information transmission between terminals. The terminal identifies the fault area based on the information collected by itself and the information of adjacent terminals, and isolates the fault area on the spot. However, it is difficult to lay light in this way and the construction cost is high. to damage, does not work properly, and communication recovery time is slow

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