Fault handling method of multi-mode intelligent distributed terminals based on Internet of Things

Abstract

The invention discloses a fault handling method of multi-mode intelligent distributed terminals based on Internet of Things. The method comprises the steps that distributed FA topology is established;after a power distribution line has a fault, power distribution terminals perform information interaction through a peer-to-peer communication mode by the adoption of the Internet-of-Things technology, information collected by the adjacent power distribution terminals is collected, a fault occurring segment is determined after comprehensive comparison, breakers or load switches at the two ends ofthe fault segment are tripped off, and a fault region isolation action is completed; and a substation exit switch and an interconnection switch coincide, non-fault region power supply is recovered, and then the result is reported to a power distribution master station. According to the method, by the adoption of the Internet-of-Things communication technology, power distribution automation distributed fault handling is realized in an old city where optical fibers are difficult to lay or a place where old line reforming is difficult to implement, and a solid technical foundation is laid for large-scale application of distribution automation and especially application of power distribution automation distributed fault handling under various occasions.

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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