Intelligent transformer substation based on integrated multi-stage server framework

Abstract

The invention discloses an intelligent transformer substation based on an integrated multi-stage server framework in the design field of intelligent transformer substations. The technical scheme includes that the intelligent transformer substation comprises a process layer, an interval layer and a substation control layer, wherein the process layer comprises an unconventional current transformer ETA (electronic current transformer), an unconventional voltage transformer ETV (electronic voltage transformer), an integrated alternating electrical capacity acquisition unit, a primary intelligent equipment terminal, an integrated overhauling and monitoring unit, and a process layer Ethernet; the interval layer comprises an arbiter, a first comprehensive intelligent soft equipment server, a second comprehensive intelligent soft equipment server and a GPS (global positioning system) satellite synchronization management unit; the substation control layer comprises station-level Ethernets, a telecontrol managing machine, a first station-level comprehensive server, a second station-level comprehensive server, a comprehensive monitoring screen, a browser, an operator working station, an engineer working station and a printer. Defects of quantity redundancy and network interface limitation of an original intelligent electric device IED are overcome, and interoperability and cooperative capability among functions are improved.

Description

technical field [0001] The invention belongs to the field of intelligent substation design, in particular to an intelligent substation based on a multi-level integrated server architecture. Background technique [0002] With the development of computer and communication technology and the improvement of the automation level in the process of power production and operation, the research on the application technology of smart substation has become the focus of the power industry. Intelligent substation is the upgrade and development of digital substation. On the basis of digital substation, combined with the demand of smart grid, substation automation technology is enriched to realize the intelligent function of substation. [0003] After the substation network and communication protocol IEC61850 standard was issued, the digital substation has made great progress and has been widely used. The existing digital substation is constructed by layers of intelligent primary equipmen...

AI Technical Summary

Problems solved by technology

In addition, the substation network and communication protocol IEC61850 standard has strict requirements on the real-time performance of network data transmission. For example, the time delay of the process bus sampling measurement value transmission is stipulated within 2ms

In order to improve the real-time performance of the process bus and realize network redundancy, it is also necessary to configure multiple Ethernet interfaces to communicate with process-level device networking. The entire substation needs more network switches, and even needs to adopt a multi-level switching networking method. Complex network structure

[0007] (2) The collaborative work of intelligent electronic devices IED is relatively complex

[0009] (3) Decentralized management

[0010] Each intelligent electronic device IED in the existing digital substation is responsible for its own functions, and the management of each intelligent electronic device IED is decentralized, resulting in high management costs

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