Multi-level anti-misoperation locking system for master substation of intelligent substation

Abstract

The invention discloses an intelligent master station and sub-station multi-level anti-misoperation locking system. The invention aims to realize effective cooperation between a master station and sub-stations. The intelligent master station and sub-station multi-level anti-misoperation locking system of the invention is provided with a monitoring and control device, a transformer station monitoring host and a scheduling master station; the monitoring and control device is in communication connection with a communication gateway machine and the transformer station monitoring host; and the scheduling master station is in communication connection with the communication gateway machine and the transformer station monitoring host. The transformer station monitoring host performs configuration generation, maintenance and check for the five-prevention rules of the monitoring and control device and the scheduling master station; the transformer station monitoring host has unique management authority over the management of the operation of primary equipment; the five-prevention modules of the scheduling master station and the transformer station monitoring host share five-prevention locking logic with each other; and the scheduling master station and the transformer station monitoring host realize multi-level anti-misoperation locking and achieve effective coordination operation, and therefore, the debugging workload of the five-prevention rules of the scheduling master station and the transformer station monitoring host can be greatly decreased.

Description

technical field [0001] The invention relates to an automation system of an intelligent substation, in particular to an anti-misoperation locking system of an intelligent substation. Background technique [0002] Smart substation anti-mistake locking (mistake prevention) refers to five preventions: 1. Prevent mis-division and mis-closing of the disconnector with load; 2. Prevent mis-division and mis-closing of the circuit breaker; 3. Prevent the circuit breaker with ground wire or grounding switch ; 4. Prevent the live wire from being connected to the ground wire or close the ground switch knife; 5. Prevent strayed into the charged interval. The principle of setting up the anti-misoperation device is: all high-voltage electrical equipment that may cause misoperation should be installed with the anti-misoperation device and the corresponding anti-misoperation electrical blocking circuit. Article 2.5 of Chapter 2 "Prevention of Electrical Misoperation Accidents" of the "Twenty...

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Problems solved by technology

[0004] In the five-defense system of the prior art, the five-prevention system of the main station (dispatching master station, master station) of the control center at all levels of the power system and the five-prevention system of the substation of the intelligent substation cannot realize the locking logic sharing, so that effective cooperative operation cannot be realized. It is: 1. The five-prevention system of the main station of the dispatching center and the five-prevention system of the substation of the smart substation each have five-prevention locking logic, and there are inconsistencies. As a result, if the operation ticket passes the five-prevention logic verification of the main station, it may not be locked. If the five-proof logic verification of the station passes, it may lead to misoperation; 2. When the five-proof system of the main station is connected to the five-proof system of different sub-stations, it is necessary to perform comparison and debugging of the main station-substation locking logic, and the debugging workload is very large; 3 1. During the five-defense operation of the main station or sub-station, there is a lack of management of the sole right of operation, and it is impossible to automatically lock the five-proof systems of the main station and the sub-station

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