Automated one-machine multiple-station intelligent five-defense system of energy system transformer substation

Abstract

The invention discloses an automated one-machine multiple-station intelligent five-defense system of an energy system transformer substation, belonging to the technical field of intelligent protection. The five-defense system comprises on-line monitoring hardware and a control treatment module, wherein the on-line monitoring hardware comprises a power line communication interface, a pulse-type electromagnetic lock control circuit, an equipment state detection circuit and a control treatment module; a double-ring Ethernet is used for connecting four redundancy I / O servers of the energy system;the control treatment module comprises a data acquisition module, a logic calculation, analysis and judgement module, a database storage module, an image display module, a permission effectiveness judgement module, a protection lockout module, a manual listing and delisting module, a manual confirmation module, a manual emergency unlocking module, an automatic unlocking module, an image voice alarming module and a historical data searing module; and the control treatment module operates on the four redundancy I / O servers of the power system. The invention has the advantages of low investment,low fault rate, small power consumption, small error, high standardization degree, reliable and safe interlocking, favorable generality, stable and precise transmission and high efficiency and is reliable and visualized.

Description

technical field [0001] The invention belongs to the technical field of intelligent protection, and in particular provides an energy system substation automation one-machine multi-station intelligent five-prevention system, based on the general five-prevention rules for substation automation, computer and network communication technology, real-time input of equipment status, and intelligent digital identification Judgment, protection locking, automatic unlocking, networked five-proof locking management, computer monitoring and alarm system, suitable for circuit breakers, grounding switches, isolating switches, etc. Automatic five-defense monitoring, protection and control. Background technique [0002] At present, the traditional electrical error prevention is mainly an error prevention function based on the secondary operation circuit, which is generally realized through the auxiliary contact interlock of the switch. The electrical locking circuit has been continuously impr...

AI Technical Summary

Problems solved by technology

The electrical locking circuit has been continuously improved during the development of the power system, but the circuit is complex, and a large substation with many intervals consumes a lot of cables to realize it, and there are problems such as unreliable switch auxiliary contacts and easy damage to the outdoor electromagnetic lock mechanism during operation. In addition, its anti-mistake function depends on the secondary wiring, it is not easy to add and modify, and it cannot achieve complete five-proof

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