A Line Loss Level Evaluation Method Based on Power Grid Characteristic Difference

Abstract

The invention relates to a line loss level evaluation method based on power grid characteristic difference. According to the method, line loss influence integrated factors such as the natural condition, the network structure, the power utilization structure and the power grid operating characteristics of each province or city or county are led in, an original single index only with the line loss rate numerical value size taken into account is changed into an index system which is composed of various indexes affecting line loss, considering the impact of all the indexes on the line loss rate, different weights are set, comprehensive calculation, analysis and evaluation are conducted, so that a scientific index system and evaluation criterion is established, and thus the advancement of the power grid line loss level evaluation method can be guaranteed. According to the line loss level evaluation method based on power grid characteristic difference, the traditional method that the line loss rate size is purely used for evaluating the line loss level before can be broken through, the quantitative evaluation method of the line loss level of a power grid at the same level is provided, the loss reduction potentiality of the power grid is exploited to the maximum degree, and thus the line loss management level of the power grid is improved.

Description

technical field [0001] The invention belongs to the field of power grid line loss management and relates to a line loss level evaluation method based on power grid characteristic differences. 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] Judging from the current actual situation, the line loss indicators of various electric power companies are widely adopted based on the actual completion of line loss in previous years, considering the power structure, changes in power consumption structure, power grid structure, equipment status, load rate, ...

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Problems solved by technology

[0005] However, as we all know, compared with other indicators, the line loss rate index has its particularity. The types of power grids in different regions are different, which makes the level of technical line loss also different. The area with a lower line loss rate is not necessarily higher than the line loss rate. The regional management is more in place. It is obviously unscientific to directly compare the absolute value of the line loss rate of each unit, and it cannot accurately tap the power grid loss reduction space of each unit to the greatest extent.

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