Method and system for generating multi-source and multi-dimensional power failure early warning and coping strategy of medium-voltage power distribution network

Abstract

The invention discloses a medium-voltage power distribution network multi-source multi-dimensional power failure early warning and coping strategy generation method and system. The method comprises the following steps: extracting operation characteristics from a power distribution network multi-source data set, and extracting fault characteristics from a power distribution network panoramic data set; constructing a correlation model of the operation features and the fault features, solving fusion factors, and performing data fusion on the operation features and the fault features to obtain early warning features; the parallel network structure clusters the early warning features to obtain a power distribution network power failure hidden danger label, and an early warning threshold value is obtained from a knowledge graph database of power grid abnormal state prevention and control; key parameters in the power failure hidden danger event are compared with an early warning threshold value, and when the key parameters are larger than the early warning threshold value, the power failure hidden danger event serves as a power failure early warning event to be output; and according to the operation and maintenance safety index, determining the danger level of the power failure early warning event and formulating a coping strategy. Based on multi-source and multi-dimensional off-line, on-line and historical data, problems existing in distribution network operation are mastered, and an operation and maintenance strategy with high pertinence is provided.

Description

technical field [0001] The invention belongs to the technical field of intelligent operation and maintenance of power equipment, and in particular relates to a method and system for generating a multi-source and multi-dimensional power outage early warning and response strategy for a medium-voltage distribution network. Background technique [0002] The distribution network directly faces multiple users and is the main infrastructure supporting the development of new infrastructure. Lean management and control of reliability is very important, and it is the basic support for advanced operation and maintenance technology to play a role. [0003] In the existing technology, the business improvement of distribution network power supply reliability and lean management and control still face the following challenges: 1) How to effectively use massive information to carry out reliability management; 2) How to reflect the differentiated needs of users for reliability and achieve le...

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Problems solved by technology

[0003] In the existing technology, the business improvement of distribution network power supply reliability and lean management and control still face the following challenges: 1) How to effectively use massive information to carry out reliability management; 2) How to reflect the differentiated needs of users for reliability and achieve lean Management; 3) How to improve the reliability of power supply in multiple dimensions and reduce the input cost is an important problem that needs to be solved; 4) How to develop the reliability lean management and control auxiliary system, and transform the research results into a tool for the grass-roots power supply enterprises to carry out reliability management

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