Remote inversion method of internal action logic of protection device

A technology of action logic and internal logic, applied in the direction of circuit devices, AC network circuits, electrical components, etc., can solve problems that cannot meet the needs of complex fault analysis of power grids, and achieve the effect of efficient informationization and transparent action process
CN102496930AActive Publication Date: 2012-06-13STATE GRID ZHEJIANG ELECTRIC POWER +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
STATE GRID ZHEJIANG ELECTRIC POWER
Publication Date
2012-06-13

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Abstract

The invention provides a realization method in which intermediate node information correlated to an internal action logic of a relay protection device is uploaded and a visual logic diagram is combined to invert a protection process of the internal logic when there is a fault at a power grid. The provided method can be applied to a power grid fault information system. And the method comprises the following steps that: when there is a fault at a power grid, internal logic operation information of a relay protection device is processed to generate an intermediate node file that can describe the fault in detail; according to an IEC61850-8-1 protocol, the relay protection device uploads the intermediate node file and a fault wave-recording COMTRADE file to a remote fault information master station; and a visual application module loads the intermediate node file, the protection logic diagram file and the COMTRADE fault wave-recording file to demonstrate a protection logic operation situation in the whole fault process. According to the invention, a visual observation means is provided for inversion of an accident in a power system; and a rapid, accurate, and high efficient informational way is provided for accident localization and a fault analysis; therefore, an action process of a relay protection device is hyalinized and the visibility is realized.
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Description

technical field

[0001] The invention belongs to the field of electric power system dispatching automation, especially in the relay protection and fault information system of the power grid, and provides a method for replaying the fault process of the power grid and quickly locating the cause of the fault. Background technique

[0002] At present, after a complex power grid fault, the fault recording file COMTRADE generated after the relay protection device operates can only represent the judgment result or logic execution result of the relay protection device on the accident, but how to make the final judgment result inside the relay protection device There is no corresponding information indicating that this cannot meet the analysis needs of complex faults in the power grid. If the intermediate state of the internal logic of the relay protection equipment before and after tripping, the intermediate calculation process of the analog quantity, and the intermediate judgment pr...

Claims

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