Insulator equivalent salt deposit density accumulation rate prediction method based on BA-GRNN

Abstract

The invention discloses an insulator equivalent salt deposit density accumulation rate prediction method based on BA-GRNN. The method includes that initializing is performed to acquire a group of random solutions, iteration is performed to search for an optimal solution, and local new solutions are generated around the optimal solution through random flight, so that local searching is enhanced, and insulator equivalent salt deposit accumulation rate prediction is realized. Compared with other algorithms, BA is far higher than other algorithms in the aspects of accuracy and effectiveness; no many parameters need to be adjusted, so that the method has the advantages of high convergence rate and few radial basis function adjusting parameters.

Description

technical field [0001] The invention belongs to the technical field of insulator pollution analysis, and more specifically relates to a BA-GRNN-based method for predicting the equivalent salt density accumulation rate of insulators. Background technique [0002] The equal salt deposit density (ESDD), referred to as salt density, is the main basis for determining the pollution level and drawing the distribution map of the grid pollution area. [0003] With the rapid development of the national economy, the scale of my country's power grid continues to increase, and the rated voltage level of the power grid continues to increase. Therefore, the pollution flashover accidents of the external insulation of the power transmission and transformation equipment in the power system are also becoming more and more serious. It is difficult to grasp the occurrence rules of pollution flashover accidents, and there are no current measures to effectively prevent such accidents. [0004] Un...

AI Technical Summary

Problems solved by technology

It is difficult to grasp the occurrence rules of pollution flashover accidents, and there are no current measures to effectively prevent such accidents

[0004] Under normal circumstances, the inspection and maintenance personnel of the power system operation and management department usually take measures such as increasing the creepage ratio distance, using pollution-resistant insulators as much as possible, regularly spraying anti-fouling paint on the surface of the insulator, and periodically powering off or cleaning the insulator, etc. Pollution flashover prevention and control measures, these methods can play a role in reducing pollution flashover risks to a certain extent, but at the same time inevitably have a certain degree of passivity, blindness and uncertainty in the prevention effect, so the effect of pollution flashover accident prevention is still Unsatisfactory mouth

Images