Intelligent distributed FA communication fault-tolerant control method based on wireless communication

Abstract

The invention relates to an intelligent distributed FA communication fault-tolerant control method based on wireless communication, and belongs to the technical field of feeder automation. When the intelligent distributed FA terminal is initialized, terminal parameters of the intelligent distributed FA terminal are obtained, parameters of adjacent terminals are obtained through transverse communication, and intelligent distributed FA topology is established; when the on-off position of the switch is changed, a corresponding topology can be established in a self-adaptive manner. After the intelligent distributed FA terminals are initialized to form topology, the parameters of upstream and downstream terminals are subjected to override interaction, so that each intelligent distributed FA terminal stores the parameters of adjacent override terminals. Under the condition of wireless communication, when terminal communication fails, an intelligent distributed FA fault-tolerant communication mechanism is started, terminals with abnormal communication are isolated, and an override terminal topology is formed. The power failure time can be shortened, the number of households during power failure is reduced, the power supply reliability of the distribution line fault is further improved, and application and popularization are easy.

Description

technical field [0001] The invention belongs to the technical field of feeder automation (FA), in particular to an intelligent distributed FA communication fault-tolerant control method based on wireless communication. Background technique [0002] Feeder automation is an important technical means to improve the reliability of distribution network power supply. In terms of domestic and foreign medium-voltage distribution network protection, the feeder automation mode includes three modes: local feeder automation, master station centralized FA and intelligent distributed FA: [0003] 1. On-site feeder automation modes include voltage-time type, voltage-current type, etc., relying on line voltage and current to realize fault location and isolation. There is no communication between line devices, and the switch at the outlet of the substation needs to be overlapped multiple times to realize the feeder automation function. Therefore, the fault The speed of processing and power s...

AI Technical Summary

Problems solved by technology

However, the peer-to-peer communication of intelligent distributed FA has high requirements on communication media. At present, optical fiber communication is mainly used, but the time cost, labor cost and material cost required for laying a large number of optical cables are relatively high, and the reconstruction of old urban areas and old lines and distribution network lines in remote areas are difficult to implement

The wireless communication networking mode is flexible and the implementation cost is low. The intelligent distributed FA protection technology can be realized in the coverage area of ​​the wireless base station. The field of distributed FA is difficult to use

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