Integrated automation integration protection method and system

Abstract

The invention relates to a comprehensive automation integrated protecting method and a system which adopt an integrated IED to carry out automation functions such as protection, measurement and control, computation and the like of all bay units in a substation; state quantity, analog quantity and digital quantity which are output in interval by primary equipment on a process layer of the substation are respectively uploaded to the integrated IED through an ethernet switcher by a dual Ethernet (100mega / 1000mega), and the protection and automation function of the substation are realized by calculating and processing the state quantity, analog quantity and digital quantity which are output in interval respectively by the integrated IED, therefore, a spacing layer and a substation layer of the substation are unified into one layer according to IEC61850 standard, and a plurality of IEDs are integrated into one integrated protecting IED, and two same integrated IEDs are provided for hot spare for improving the reliability. The comprehensive automation integrated protecting system leads the substation integrated protecting functions to share a uniform information platform, and communication network is used for replacing control cables, thus improving the reliability of the signal transmission, further improving automation and management level and reducing comprehensive construction cost.

Description

technical field [0001] The invention relates to the technical field of electric power protection, in particular to a comprehensive automatic integrated protection method and system thereof. Background technique [0002] In recent years, the continuous adoption of new technologies such as computer chips and networks has fundamentally changed the basic appearance of traditional substations: fully digital equipment, systems composed of networks, supplemented by mature dispatching automation systems, are continuously improving the operation of substations. The degree of automation and reliability, and can gradually and truly apply the functions that automation should be able to achieve, that is, automation is no longer a beautiful and unusable flower shelf, but can really solve and meet the problems and needs that arise in the actual operation of production. Substation automation The system has basically been accepted and used by users. [0003] The substation automation system...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in the prior art, intelligent electronic devices (IEDs) are installed in each interval of the primary equipment of the substation process layer or in the control room near each interval for protection, resulting in repeated function settings, complicated on-site wiring, The interconnection of IEDs from different manufacturers requires communication protocol conversion and other issues, and a comprehensive automation integrated protection method and system are provided. This comprehensive automation integrated protection method and system uses integrated IEDs to complete the protection, measurement and control, and measurement of all interval units in the whole station. In this way, according to the IEC61850 standard, the substation bay layer and the substation layer are combined into one layer, multiple IEDs are combined into one integrated protection IED, and two identical integrated IEDs are provided as hot standby for each other in order to improve its reliability. In this way, the problem of repeated setting of functions is solved, the on-site wiring is simplified, and there is no longer the problem of communication protocol conversion required for the interconnection of multiple IEDs

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