Networking system for digital transformer substation

Abstract

The invention discloses a networking system for a digital transformer substation. The networking system comprises first Ethernet, second Ethernet, a first generic object oriented substation event (GOOSE) net and a second GOOSE net, wherein the first Ethernet is arranged in a substation control layer, the second Ethernet is in redundancy configuration with the first Ethernet, the first GOOSE net is arranged in a process layer, and the second GOOSE net is in redundancy configuration with the first GOOSE net, a fault wave-recording device collects and processes digital quantity information of equipment in a separation layer through the first Ethernet and the second Ethernet, collects and processes digital quantity information of equipment in a process layer through the first GOOSE net and the second GOOSE net, in addition, a merging unit is used for collecting analog quantity information of a voltage mutual inductor and a current mutual inductor, and a protection information sub station carries out fault information processing according to the collected information so that the accident analysis is carried out. When the technical scheme of the invention is implemented, the network configuration is eliminated, in addition, more information than fault wave-recording net can be recorded, and an information sub station can be more favorably protected to do accident analysis, so the safety, the stability and the reliability of the fault wave recording are improved.

Description

technical field [0001] The invention relates to a power system, in particular to a networking system of a digital substation. Background technique [0002] A digital substation is composed of intelligent primary equipment (such as electronic transformers, intelligent switches, etc.), networked secondary equipment (such as protection devices, measurement and control devices) and operation management equipment layers (process layer, interval layer, station control layer) ) built. A digital substation is a substation that uses IEC61850 ("communication network and system for utility automation" series standards) for modeling and communication. The digital substation takes the primary and secondary equipment of the substation as the digital object, and is based on the high-speed network communication platform. Through the unified modeling and standardization of digital information, information sharing and interoperability are realized, and based on network data, intelligent stra...

AI Technical Summary

Problems solved by technology

In the networking system of the digital substation, the fault recording network generally adopts a single-network mode, that is, a fault recording network is configured separately for the fault recording equipment, and information is not obtained in the A and B networks, resulting in network equipment Repeated configuration, once a network failure occurs, the function of fault recording cannot be realized, and the recording device cannot obtain information outside the recording network

Therefore, the security, stability and reliability of this networking system are low

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