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Load prediction and diagnosis method based on power distribution network protection and equipment real-time data

A technology of load forecasting and real-time data, which is applied to load forecasting in AC networks, emergency protection data processing devices, forecasting, etc., can solve problems such as the lack of effective and fast load forecasting and diagnosis methods, and improve speed and effectiveness. Improve efficiency and save labor

Active Publication Date: 2022-04-22
MAOMING POWER SUPPLY BUREAU GUANGDONG POWER GRID CORP
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  • Application Information

AI Technical Summary

Problems solved by technology

Lack of an effective and fast load forecasting and diagnosis method that combines distribution network protection and real-time equipment data

Method used

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  • Load prediction and diagnosis method based on power distribution network protection and equipment real-time data
  • Load prediction and diagnosis method based on power distribution network protection and equipment real-time data

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Embodiment

[0020] Such as figure 1 As shown, a load prediction and diagnosis method based on distribution network protection and real-time data of equipment is characterized in that it includes the following steps:

[0021] S1: Based on the real-time data of the local power grid distribution network setting calculation equipment, and save it in the database;

[0022] S2: Based on the KMP algorithm, combined with the principles of breadth search and depth search, and according to the topological relationship of corresponding devices, intelligently and automatically analyze the corresponding coordination relationship between each device, realize multi-level device coordination calculation, and analyze the corresponding first-level switch, Two-level switch and three-level switch; realize the convenient coordination relationship matching of the corresponding fixed value time, and display the optimal coordination relationship scheme on the system through graphic visualization technology;

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Abstract

The invention provides a load prediction and diagnosis method based on power distribution network protection and equipment real-time data, which is characterized by comprising the following steps of: setting and calculating equipment real-time data based on a local power grid distribution network, and storing the equipment real-time data in a database; based on a KMP algorithm, multi-level equipment cooperative calculation is realized, time of a corresponding fixed value is analyzed to facilitate cooperative relationship matching, and the time is displayed on the system through a graphic visualization technology; image-text recognition is carried out, then load prediction is carried out, and a protection diagnosis strategy is provided; by means of the image-text recognition technology, images are converted into characters, structural data are output and automatically recorded to the background, labor can be greatly saved, and efficiency is improved; the method comprises the following steps of: processing, analyzing and understanding images by using a computer through an integrated image-text recognition technology so as to recognize targets and objects in various different modes, realize recognition of basic parameters and setting value sheets of equipment into characters, and store the characters in a database; and the speed and effectiveness of the load prediction and diagnosis method are greatly improved.

Description

technical field [0001] The invention relates to the field of distribution network data protection, in particular to a load prediction and diagnosis method based on distribution network protection and real-time data of equipment. Background technique [0002] Relay protection is an extremely important safety guarantee tool for power systems, and various software required to realize relay protection operation and management automation is also one of the focuses of research and development of power system application software at home and abroad. [0003] In the past ten years, in order to improve the automation level of relay protection operation and management, Guangdong Power Grid has successively developed relay protection setting calculation software, fixed value management software and other related software for the main network, but has not yet built a distribution network intelligent realization platform. Load forecasting is the basis of power grid planning. Traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H1/00H02J3/00G06F16/25G06F16/29G06Q10/04G06Q50/06
CPCH02H1/0092H02J3/003G06F16/25G06F16/29G06Q10/04G06Q50/06Y04S10/50
Inventor 汪娇娇胡铁斌魏千钧黄子千贺臣叶睆刘银胡子侯丁健王汉军陆俊宇许建远吴茂育张明刚张东强
Owner MAOMING POWER SUPPLY BUREAU GUANGDONG POWER GRID CORP
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