Distribution line flashover rate improvement algorithm based on electrical geometric model

An electrical geometric model, a technology of distribution lines, applied in the direction of measuring electricity, measuring electrical variables, testing dielectric strength, etc., can solve problems such as errors in distribution lines

Active Publication Date: 2019-03-29
STATE GRID CORP OF CHINA +2
View PDF12 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lightning width calculation method can be well suited for the transmission line whose conductor height exceeds 60m, but there is a considerable error for the distribution line with a line height of no m

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Distribution line flashover rate improvement algorithm based on electrical geometric model
  • Distribution line flashover rate improvement algorithm based on electrical geometric model
  • Distribution line flashover rate improvement algorithm based on electrical geometric model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0072] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative import...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a distribution line flashover rate improvement algorithm based on an electrical geometric model, specific steps of solving the distribution line flashover rate by using the improved algorithm and considering factors such as lightning flashover density, tower shape, soil resistivity, line insulation level and other factors are proposed; the method comprises the following steps: determining line parameters, calculating a thunder-resistant level of direct lightning stroke, calculating equivalent flashover width of the line, and calculating the direct lightning stroke flashover rate and the inductive lightning flashover rate. According to the method, the influence of the lightning current amplitude on the equivalent lightning width of the line is considered based on theelectric geometric model, and the equivalent flashover width of the line is defined, so that the calculation of the distribution line flashover rate is more accurate, and the method has a certain guiding effect on lightning stroke risk assessment and differential lightning protection of the distribution line.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering, and in particular relates to an improved algorithm for distribution line flashover rate based on an electrical geometric model. Background technique [0002] Distribution lines bear the heavy responsibility of directly distributing power to low-voltage loads. As the last link to connect users and control power quality, the safety and reliability of distribution network operation is the basis for ensuring power quality. As a characteristic parameter of distribution line risk assessment, the flashover rate comprehensively considers the influence of the lightning resistance level of the line, the lightning activity in the area where the line passes, the equivalent lightning width of the line, and the probability distribution of lightning current. The causes of faults such as lightning strike and disconnection can evaluate the risk of faults such as lightning tripping and lightning str...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R31/12
CPCG01R31/1272
Inventor 高峰王荆王森王辰曦吴子豪胡攀峰孔志战吴经锋刘行张伟
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap