Electricity quality monitoring and managing method based on genetic projection pursuit evaluation

Abstract

The invention relates to the technical field of power grid management, in particular to an electricity quality monitoring and managing method based on genetic projection pursuit evaluation. The electricity quality monitoring and managing method based on genetic projection pursuit evaluation is characterized by including the following steps: (1) a projection index is established; (2) a projection objective function is established; (3) genetic calculation optimization is performed on the projection objective function; (4) a scatter diagram is formed and end point values are determined. Feature vectors corresponding to maximum feature values of matrixes are judged through comparison. The genetic projection pursuit calculation method overcomes affection of artificial subjective factors in a conventional method, objectively reflects internal relations between evaluation indexes and is capable of evaluating voltage of different stages from different levels. The eigenvalue weighting method of the electricity quality monitoring and managing method based on genetic projection pursuit evaluation establishes comparison judgment matrixes through evaluation results obtained by the genetic projection pursuit calculation method and automatically judges relative importance of evaluated subjects. Thus, a determined weight function is more objective.

Description

technical field [0001] The present invention relates to the technical field of power grid management, and specifically relates to a long-term and real-time monitoring of the power quality of the power grid system, a comprehensive grasp of the power quality level of the power grid system, and a basis for providing basic data for comprehensive management of power quality and management. A power quality monitoring and management method based on genetic projection tracing evaluation. Background technique [0002] my country is currently promoting the rapid construction of smart grids, requiring coordinated development of grids at all levels, and a strong smart grid system characterized by informatization, automation, and interaction. As a result, higher requirements are put forward for the safety, economy, reliability and interaction of the power grid. Power quality is not only an important indicator of the reliable operation of the power system but also an important indicator ...

AI Technical Summary

Problems solved by technology

These impact loads and nonlinear loads can easily cause interference to the power grid system, causing local resonance in the power grid, damage to the generator rotor, abnormal and frequent start-up of relay protection, and a large number of user motors and capacitors burn out. Small thermal power plants cannot be nearby. A series of hazards such as grid connection have caused huge economic losses to the society, the power sector and users. In order to prevent the power grid from being harmed, it is necessary for every power grid company to put forward comprehensive monitoring and control measures for these loads as soon as possible. Consideration

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