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Safety control method and system for overhead line system isolating switch monitoring system

A technology of isolation switch and safety control, applied in the direction of electrical components, circuit devices, etc., can solve the problems of false alarm, misoperation, refusal to operate, etc.

Active Publication Date: 2019-03-26
GUODIAN NANJING AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the remote control of catenary isolating switch generally adopts the optical fiber communication monitoring scheme, that is, the hierarchical structure scheme of power supply telecontrol system - substation monitoring master station - local monitoring unit - isolating switch electric operating mechanism, but in actual operation In the process, abnormal phenomena such as misoperation, refusal to operate, and false alarm have occurred many times

Method used

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  • Safety control method and system for overhead line system isolating switch monitoring system
  • Safety control method and system for overhead line system isolating switch monitoring system
  • Safety control method and system for overhead line system isolating switch monitoring system

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Embodiment Construction

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0053] A safety control method for a catenary isolating switch monitoring system. The final blocking state is identified based on the blocking combination relationship. The blocking combination relationship is realized through a configuration table format. The configuration table includes source entry attributes and target entry attributes. The source attributes include blocking equipment numbers, The opening and closing points of the lock and the opening and closing positions of the switch points, the target entry attribute remote control equipment number, remote control switch number and group number; the group number indicates the logical relationship of the target entry;

[0054] Forced unlocking ...

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Abstract

The invention relates to a safety control method and system for an overhead line system isolating switch monitoring system. A digital communication remote control locking function avoids a possibilitythat an overhead line system isolating switch malfunctions due to an unsatisfactory field operation condition. The remote control locking function is introduced by a centralized monitoring device ona centralized monitoring screen. The presence or absence of a blocking signal is identified by a locking entry point opening and closing combination. The centralized monitoring device sends a virtuallocking remote signal point status to an isolating switch RTU (Remote Terminal Unit) through a GOOSE network, dispatches and sends an unlocking signal, and achieves directly unlocking in order that the RTU is not controlled by the locking signal, thereby greatly reducing the probability of maloperation. The centralized monitoring device, dispatching, and the comprehensive background are all in parallel position, and all communicate with the isolating switch RTU directly, and the isolating switch RTU is a direct control RTU device. The scheme of reducing fault points can prevent the isolating switch operation failure and telecommand false alarm.

Description

technical field [0001] The invention relates to the field of a catenary electric isolating switch monitoring system in the railway industry, in particular to a safety control method and system for a catenary isolating switch monitoring system. The invention supports GOOSE input and output functions, and realizes digital communication locking and screen control functions through the IEC61850 protocol. Background technique [0002] The catenary isolating switch is one of the important electrical equipment of the electrified railway power supply system, mainly used for catenary fault removal, segmental power outage maintenance, segmental power outage operation and changing power supply operation mode, etc. In order to make the catenary isolating switch operate reliably and ensure the safety of electrified railway operation, it is very necessary to incorporate some important catenary isolating switches into the telecontrol monitoring system. At present, the remote control of ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCH02J13/0017
Inventor 随新鲜范三龙管金酉包素丽柏如国
Owner GUODIAN NANJING AUTOMATION
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