Electric power big data-based main transformer peak load prediction method and data warehouse system

A peak load, data warehouse technology, applied in the field of power system, can solve the problem of increasing difficulty of forecasting environment, and achieve the effect of reliable forecasting

CN107918639AInactive Publication Date: 2018-04-17广东电网有限责任公司云浮供电局
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-04-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of electric power systems, and in particular to an electric power big data-based main transformer peak load prediction method and a data warehouse system.The method comprises the following steps of: S1, carrying out statistics and analysis on history data of a power grid system, so as to establish the data warehouse system; S2, analyzing an extracted knowledge according to a decision purpose of a final user by adoption of a sequence mode analysis and clustering analysis data mining method, distinguishing most valuable information and submitting theinformation to the user; and S3, preprocessing main transformer peak load data through the arranged history data, and establishing a support vector machine-based load prediction model to predict thefuture main transformer load condition. According to the electric power big data-based main transformer peak load prediction method, the data warehouse system is established, the data mining method isestablished, and the support vector machine-based method is adopted to predict the main transformer load change condition, so that correct and reliable main transformer peak load prediction is realized, and systems are reasonably scheduled to ensure safe and economic operation.
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Description

technical field

[0001] The invention relates to the technical field of electric power systems, and more specifically, to a method for forecasting peak loads of main transformers based on electric power big data. Background technique

[0002] With the commercialization and marketization of the power system, the accuracy of power load forecasting is of great significance to the safe and economical operation of the power system and the development of the national economy. The level of power load forecasting has become one of the notable signs of whether the management of a power enterprise is moving toward modernization. As an important basis in power trading, the power system load forecast value provides the necessary guidance for power companies to customize power quotations, operation plans, and grid planning. Its prediction accuracy will closely affect the economic benefits of power companies, especially in my country's power industry. Today, with the development of electri...

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Embodiment Construction

[0035]The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

[0036] Such as figure 1 As shown, a method for peak load forecasting of main transformer based on power big data, which includes the following steps:

[0037] S1. Make statistics and analysis on the historical data of the power grid system, and establish a data warehouse system;

[0038] S2. Use sequential pattern analysis and cluster analysis data mining methods to analyze the extra...