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Method for determining whether dirt particles adhere to insulating surface of outer surface of electrical equipment or not

A power equipment and adhesion technology, which is applied in design optimization/simulation, electrical digital data processing, computer-aided design, etc., can solve the problems of inaccurate prediction methods of contamination deposition on the outer insulation surface, reduce the huge amount of calculation, solve the imprecise effect

Pending Publication Date: 2021-08-06
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a method for determining whether the dirt particles adhere to the outer insulating surface of the electric equipment, so as to solve the technical problem of inaccurate prediction method of pollution deposition on the outer insulating surface of the electric equipment in the related art

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  • Method for determining whether dirt particles adhere to insulating surface of outer surface of electrical equipment or not
  • Method for determining whether dirt particles adhere to insulating surface of outer surface of electrical equipment or not
  • Method for determining whether dirt particles adhere to insulating surface of outer surface of electrical equipment or not

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that the terms "first...

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Abstract

The invention discloses a method for determining whether dirt particles adhere to an insulating surface of the outer surface of power equipment or not. The method comprises the following steps: acquiring equivalent surface energy distribution of an insulating surface; according to the dynamic JKR model and the equivalent surface energy distribution, obtaining the critical trapping speed of the dirt particles under the dry condition through calculation; calculating first kinetic energy according to capillary force between the dirt particles and the insulating surface; according to the critical trapping speed and the first kinetic energy, determining target loss energy, wherein the target loss energy is the minimum energy lost when the dirt particles can adhere to the surface of the insulating face; and when the lost energy of the dirt particles is larger than or equal to the target lost energy, determining that the dirt particles can adhere to the insulation face. Through the invention, the technical problem that in the related technology, a method for predicting dirt deposition on the outer insulation surface of the power equipment is not accurate is solved.

Description

technical field [0001] The invention relates to the field of antifouling of electric equipment, in particular to a method for determining whether dirt particles adhere to the outer insulating surface of electric equipment. Background technique [0002] Dust weather has occurred frequently this year, and a large number of dirty particles may quickly deposit on the outer insulating surface, posing a threat to the safety and stability of the power system. [0003] In related technologies, the current research on the prediction method of external insulation pollution deposition is still in its infancy, and there are fundamental problems in related theories, which make it impossible to effectively predict external insulation pollution deposition. Most of the existing models calculate the van der Waals force between the particles and the outer insulating surface based on the Hamaker expression, and take the integral value of the van der Waals force within the range of the equilibr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F111/08G06F119/08G06F119/14
CPCG06F30/23G06F2111/08G06F2119/08G06F2119/14
Inventor 耿江海黄志成王生富丁玉剑马旭东
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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