Similar line-loss division method based on K-MEANS algorithm

Abstract

The invention provides a similar line-loss division method based on a K-MEANS algorithm. The similar line-loss division method comprises the following steps: establishing a comprehensive index system influencing line loss and establishing mathematical models of all indexes through the introduction of the comprehensive factors influencing line loss, such as the structural characteristics of all electric grids, the physical parameter of equipment, the running characteristics of the electric grids, the structural characteristics of electricity utilization, and developing situations of the nature and society; using the index values of the electric grids as N-dimensional vectors, performing iterative computation by utilizing the K-MEANS clustering algorithm to obtain the difference between the indexes of the electric grids, so that the electric grids of which the line loss is naturally similar are classified into the same type, and electrical network enterprises can conveniently perform evaluation and comparison on the levels of the line loss of the electric grids of the same type. According to the similar line-loss division method disclosed by the invention, the basic characteristics of the electric grids are sufficiently taken into account, line-loss similar division is performed, the objective rationality of division results is guaranteed, and powerful theory support is provided for line-loss management.

Description

technical field [0001] The invention belongs to the field of power grid line loss management and relates to a method for classifying line losses based on a K-MEANS algorithm. Background technique [0002] The line loss rate index is an important comprehensive technical and economic index for electric power enterprises. It reflects the planning and design, production technology and operation management level of a power network. The scope of line loss management runs through the power grid planning and design, equipment selection, dispatching and operation , technical transformation, measurement management, marketing management and other aspects. [0003] At present, the main basis for the line loss management of power grid enterprises is the statistical line loss and theoretical line loss results of the unit in the historical years. The impact of the amount of electricity and the implementation of grid infrastructure and technical transformation projects on grid line loss, o...

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Problems solved by technology

[0003] At present, the main basis for the line loss management of power grid enterprises is the statistical line loss and theoretical line loss results of the unit in the historical years. At the same time, the statistical caliber and changes in the power consumption structure, the impact of energy-saving power generation scheduling, the development of new energy The impact of the amount of electricity and the implementation of grid infrastructure and technical transformation projects on grid line loss, on the one hand, did not fully consider other factors affecting line loss such as grid structure, equipment status, and grid operation; There is no basis for comparison when comparing line loss rate indicators between high-level companies

In order to more objectively evaluate the level of line loss management, it is necessary to compare power grids with similar natural endowments, and there is no comparability between power grids with large differences in natural endowments

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