Transformer grouping method based on load characteristic analysis

Abstract

Disclosed is a transformer grouping method based on load characteristic analysis. The transformer grouping method based on load characteristic analysis includes the following steps that firstly, transformer load data are processed to form load rate data, and dimensionality reduction is performed to extract three transformer load characteristics such as annual average load rate, load rate fluctuation and load rate trend; then transformer load characteristic samples are formed through index calculation, and a characteristic sample set is subjected to standardization and to clustering grouping processing by a k-medoids algorithm; finally, grouping results are subjected to characteristic analysis. The transformer grouping method based on load characteristic analysis is provided in consideration of differences of different transformer load characteristics, transformer operation grouping results and suggestions are obtained, and a technological means is provided for grasping transformer economical operation conditions and trends.

Description

technical field [0001] The invention relates to a method for realizing transformer load grouping by establishing a transformer load characteristic index. Background technique [0002] With the development of social economy and the continuous improvement of the industry's awareness of economic benefits, reducing losses and saving electricity has increasingly become the focus of the power supply industry. Therefore, the use of technical means to realize the economical operation control of transformers has very important practical significance for reducing losses and saving electric energy. Among them, the analysis of the load characteristics of the transformer is the basis for the economical operation control of the transformer. [0003] The traditional economic operation analysis of transformers is mainly based on the technical parameters of the transformer, combined with the actual load conditions, and the economic operation status of the transformer is simply judged by the...

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Problems solved by technology

This method can reflect the current operating status of the transformer, but it is difficult to accurately reflect the historical situation and future change trend of the load. The analysis method of the load rate only reflects the relationship between the average load rate and the maximum load rate, and the concentration of the load. However, it does not reflect the low-valley load of the operation and the degree of load dispersion. Therefore, it is necessary to conduct a comprehensive analysis of the load rate of the transformer, seek a characteristic quantity that more scientifically reflects the load situation, and reasonably classify the operating economy of the transformer. On this basis, arrange the reasonable operation combination of transformers, effectively improve the economy of transformer operation in the regional distribution network, and reduce the overall power loss of the distribution network system

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