Method for analyzing medium-voltage power grid topology transaction by applying knowledge graph

A knowledge map and power grid topology technology, applied in the field of medium-voltage distribution network abnormality analysis, can solve problems such as incomplete data and inaccurate abnormality analysis, and achieve the effects of accurate analysis, fast and effective analysis process, and avoiding omissions

Active Publication Date: 2022-02-25
王坤 +3
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Problems solved by technology

For this reason, the present invention proposes a method for applying knowledge graphs to analyze topological changes in medium-voltage power grids. This method for analyzing topological changes in medium-voltage power grids using knowledge graphs solves the inaccurate analysis of changes caused by incomplete data for changes in medium-voltage power grids. technical issues

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  • Method for analyzing medium-voltage power grid topology transaction by applying knowledge graph

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Embodiment Construction

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Such as figure 1 As shown, a method for applying knowledge graphs to analyze medium-voltage network topology changes includes the following steps:

[0029] Step S1: Based on parallel computing and stream processing technology, perform quasi-real-time completion of power outage events for medium-voltage users;

[0030] Using parallel computing and stream processing technology to analyze real-time power-on and power-off events of medium-voltage users on an hourly basis, collect the relationship between line segme...

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Abstract

The invention discloses a method for analyzing medium-voltage power grid topology transaction by applying a knowledge graph, relates to the technical field of medium-voltage power distribution network transaction analysis, and solves the technical problem of inaccurate transaction analysis caused by incomplete medium-voltage power grid transaction data. Comprising the following steps: step 1, carrying out quasi-real-time complementation on a power failure event of a medium-voltage user; step 2, carrying out real-time study and judgment on non-planned power failure of the medium-voltage user; 3, analyzing a transformer substation full-stop record in the storage database, and judging a power failure reason; acquiring power grid operation records; establishing a power word library; establishing a power failure reason analysis model; obtaining a power failure influence line; obtaining a power failure influence transformer substation; associating a medium-voltage actual user power-off and power-on event with a power grid operation record; calling a power failure reason analysis model to study and judge the power failure reason of the power failure event of the actual medium-voltage user; and 4, performing intelligent retrieval of the non-planned power failure business data by constructing a knowledge graph system. The invention is reasonable in design and facilitates medium-voltage power grid topology transaction analysis.

Description

technical field [0001] The invention belongs to the technical field of medium-voltage distribution network abnormality analysis, in particular to a method for analyzing medium-voltage network topology abnormality by applying knowledge graphs. Background technique [0002] At present, the quantitative evaluation and analysis of the reliability of the medium-voltage power grid is limited to the evaluation based on historical statistical data and the engineering practice experience of technicians, and the use of simple analysis tools to carry out abnormal movement analysis. [0003] However, the current method is only limited to a single analysis of past historical data, and lacks the analysis of the cause of the change between faults based on the special "station-line-line-segment-change" topology of the distribution network; it lacks compensation for unplanned power outages. This makes the cause of the abnormal movement missed and even leads to inaccurate diagnosis of the cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06G06F40/284
CPCG06Q10/0639G06Q50/06G06F40/284Y04S10/50
Inventor 王坤黄少雄周远科赵永生何海平张纬
Owner 王坤
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