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Fault locating method and device for false loop of intelligent transformer substation

A smart substation and fault location technology, applied in electrical components, digital transmission systems, transmission systems, etc., can solve problems such as inaccurate positioning of virtual circuits in smart substations, and achieve the effect of efficient analysis methods

Inactive Publication Date: 2018-10-02
XUJI GRP +4
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Problems solved by technology

[0006] The purpose of the present invention is to provide a fault location method and device for virtual circuits in smart substations, which is used to solve the problem of inaccurate location of virtual circuits in existing smart substations

Method used

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  • Fault locating method and device for false loop of intelligent transformer substation

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Embodiment Construction

[0030] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0031] The SCD file of the smart substation contains specific information such as the connection relationship between the virtual circuits between the secondary devices; the present invention regards each virtual circuit as being composed of multiple nodes and the connections between the nodes, and uses the virtual circuits in the SCD to The relevant information of all virtual circuits in the substation can be regarded as a topological network composed of topological nodes and topological connections; for a faulty virtual circuit, it has multiple nodes, counting other virtual circuits passing through each node, through The analysis of the operating status information of these topological connections can determine the fault point of the fault loop.

[0032] Based on this, a fault location method for a smart substation virtual circuit proposed...

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Abstract

The invention relates to a fault locating method and device for a false loop of an intelligent transformer substation, and the method comprises the steps: correlating the false loop and all nodes passing through the false loop according to an SCD file; removing faults of all topological nodes, through which the false loop generating a broken chain passes, one by one when the chain breaking warninginformation of the false loop is received till the topological node generating a fault is positioned. When secondary equipment has a false loop fault, the method can help an intelligent transformer substation system analyze a chain breaking fault point of the false loop of the secondary equipment, achieves the efficient analysis of the positions of most chain breaking fault points on the false loop, and is a new efficient analysis method for an intelligent analysis business of the false loop.

Description

technical field [0001] The invention belongs to the technical field of virtual circuit operation and maintenance of secondary equipment in intelligent substations, and in particular relates to a fault location method and device for virtual circuits in intelligent substations. Background technique [0002] Compared with the traditional smart substation, many profound changes have taken place. Among them, in terms of operation and maintenance, although there are optical fiber connections between protection devices, the monitoring data information and system control information have all become digital signals. Information transmission between devices, control cables It becomes an invisible virtual circuit. In terms of device connection and fault location, the operation and maintenance business requires a deep understanding of the smart substation system, and the operation and maintenance personnel must have comprehensive knowledge of many devices. In short, the technical thres...

Claims

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Application Information

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IPC IPC(8): H04L12/24
CPCH04L41/0631H04L41/0677
Inventor 张道杰王广民李江林肖亮张巧霞张庭李宏川梁运华梁勇超郑永康
Owner XUJI GRP
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