A fault handling method for a multi-mode intelligent distributed terminal based on the Internet of Things

Abstract

The invention discloses a fault handling method for a multi-mode intelligent distributed terminal based on the Internet of Things, including: establishing a distributed FA topology; when a fault occurs on a power distribution line, the power distribution terminal adopts the Internet of Things technology to realize peer Information exchange through the communication mode, collect the information collected by adjacent power distribution terminals, determine the faulty section after comprehensive comparison, jump off the circuit breaker or load switch at both ends of the faulty section, and complete the isolation action of the faulty area; overlap the exit of the substation switch and contact switch, restore the power supply in the non-faulty area, and then report the result to the power distribution master station. By adopting the communication technology of the Internet of Things, the present invention realizes the distributed fault handling of power distribution automation in old urban areas where it is difficult to lay optical fibers or where the transformation of old lines is difficult to implement, and is a large-scale application of power distribution automation, especially power distribution automation The application of distributed fault handling in various occasions lays a solid technical foundation.

Description

technical field [0001] The invention relates to a fault handling method of a multi-mode intelligent distributed terminal based on the Internet of Things. Background technique [0002] my country's power distribution automation has been practiced as a pilot project since the 1990s, and has achieved some results and accumulated a lot of experience. In terms of feeder automation, there are several solutions: [0003] (1) Voltage time type or current counting type: [0004] The traditional voltage time type (determine the fault area according to the time from the protection reclosing of the substation to the fault current again) and the current counting type (determine the fault area according to the number of times the recloser breaks the fault current) and the two methods also belong to the concept of distributed processing , because there is no mutual communication between its control devices, it relies entirely on the electrical quantity on the feeder to trigger the action...

AI Technical Summary

Problems solved by technology

[0011] In the application of intelligent distributed FA, the requirements for communication are relatively high. Traditionally, EPON or industrial Ethernet technology of optical fiber communication is mainly used. Or the reconstruction of old lines is difficult to implement

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