Five-prevention system for intelligent substation

Abstract

The invention relates to a five-prevention system for an intelligent substation. The five-prevention system is positioned in a monitoring system of the intelligent substation and is connected with an intelligent terminal and terminal equipment of the intelligent substation respectively. The five-prevention system comprises a monitoring-system background locking module, a spacing-layer locking module and an electric-loop locking module; the monitoring-system background locking module is connected with a monitoring database in the monitoring system and the electric-loop locking module respectively; the spacing-layer locking module is connected with the intelligent terminal; and the electric-loop locking module is connected with the terminal equipment. Compared with the prior art, the five-prevention system has the advantages of high informationization degree, convenience in remote-control operation and high safety performance and the like.

Description

technical field [0001] The invention relates to an intelligent substation, in particular to a five-defense system for an intelligent substation. Background technique [0002] In conventional substations, an independent microcomputer five-proof system is usually installed. The complete microcomputer five-proof system is divided into three layers from the structure. The relevant remote signaling information used for logic locking is used for logical locking calculations; the second is the remote control locking controller at the bay layer, and the main function of the controller is to receive the locking opening message from the anti-malfunction host and convert it into a contact opening; the third is to execute The remote control locking relay on the second floor is controlled by the locking controller, and its contacts are connected in series in the control circuit of the electric operation equipment, and connected in series with the opening and closing remote control contac...

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Problems solved by technology

[0003] The structure of the above-mentioned independent five-proof system is complicated, especially the need to add a locking controller and a locking relay on site, which involves a secondary circuit, which brings a lot of work to system design, construction acceptance, and later operation and maintenance; at the same time, the five-proof system is independent of Monitoring system, the repeated installation of the system has caused an increase in investment costs, so a five-prevention system with a high degree of intelligence and strong automatic performance is required to cooperate with the existing intelligent substation

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