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Power grid fault judgment method based on IEC61850 signal semantic logic

A power grid fault and signal technology, applied in electrical components, circuit devices, information technology support systems, etc., can solve the problems of a large number of protection equipment events, and it is difficult for dispatchers to quickly identify faults.

Inactive Publication Date: 2010-09-01
NORTHWEST CHINA GRID +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a power grid fault judgment method based on IEC61850 signal semantic logic, which can Quickly synthesize and judge the fault information, and assist dispatching and operating personnel to quickly identify faults

Method used

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  • Power grid fault judgment method based on IEC61850 signal semantic logic
  • Power grid fault judgment method based on IEC61850 signal semantic logic
  • Power grid fault judgment method based on IEC61850 signal semantic logic

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Embodiment Construction

[0049] Such as figure 1 As shown, the grid fault judging method based on the IEC61850 signal semantic logic of the present invention first performs semantic identification on the IEC61850 signal in step S101. The semantic identification aims at the semantic system of IEC61850. Based on the semantic dictionary of information items formed by summarizing and sorting out the substation secondary equipment information, the semantic identification method is supplemented and specified, and other angle semantics of commonly used information are identified.

[0050] The semantic identification of the IEC61850 signal includes:

[0051] (1) At the logical node (LN) layer, the logical node (LN) attribute is expanded, and the semantic expression form of "prefix (Prefix) + logical node attribute (LNCLASS)" is used to carry out semantic agreement on the IEC61850 signal, and certain LNCLASS Select and expand, and carry out semantic conventions for Prefix to express section I, section II, phase...

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Abstract

The invention relates to a power grid fault judgment method based on an IEC61850 signal semantic logic, comprising the following steps of: firstly, carrying out semantic identification on an IEC61850 signal; secondly, carrying out modeling on protecting and wave recording equipment in a power grid according to the semantic identification on the IEC61850 signal to form protecting and wave recording equipment information models with consistent identifications; and next, acquiring protection information generated by the protecting and wave recording equipment information models and judging the property of a power grid fault according to the semantic identification on the IEC61850 signal. The invention can reason a primary equipment fault type in real time and determine the property of the fault, thereby helping dispatching operators rapidly identity, analyze and process the fault and assisting the dispatching operators in making a decision for the power grid fault.

Description

technical field [0001] The invention relates to a grid fault management system, in particular to a grid fault judgment method based on IEC61850 signal semantic logic. Background technique [0002] The IEC61850 standard is an international standard for the substation automation system based on a general network communication platform. In the substation automation system under this standard, the interlocking of the monitoring system, relay protection, and tripping and closing of automatic devices are all realized by network communication. The primary equipment of the power system operates in multiple protection states, and the secondary equipment closely monitors its status. When the system breaks down, the multiple protection devices will be activated accordingly, and the monitoring signals of the equipment used for protection will be transmitted to the monitoring center in time. The analysis and processing of the information sent by the station end provides the necessary in...

Claims

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Application Information

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IPC IPC(8): H02J13/00
CPCY02E60/723Y04S10/16Y02E60/00
Inventor 张结卢德宏粟小华李怀强
Owner NORTHWEST CHINA GRID
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