Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power transmission line dynamic capacity increasing method and system

A technology for dynamic capacity expansion and transmission lines, applied in circuit devices, AC network circuits, electrical components, etc., can solve the problems of inaccurate maximum current carrying capacity, line capacity expansion operation risks, etc., and achieve good engineering practical value and accuracy improvement. , calculate the exact effect

Active Publication Date: 2020-12-29
JIANGSU ELECTRIC POWER CO +1
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional dynamic capacity increase method uses the temperature of a small number of discrete temperature measurement points as the average temperature of the entire line to calculate the maximum ampacity of the transmission line when the capacity is increased. There are changes in wind speed, sunshine and other factors. It is inaccurate to replace the average temperature of the entire line with the temperature of the conductor at the measurement point. Therefore, the traditional dynamic capacity increase method is inaccurate in calculating the maximum carrying capacity, which brings risks to the line capacity increase operation.

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
  • Power transmission line dynamic capacity increasing method and system
  • Power transmission line dynamic capacity increasing method and system
  • Power transmission line dynamic capacity increasing method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0043] A method for dynamically increasing the capacity of a transmission line, comprising the following steps:

[0044] Step 1, using the distributed optical fiber temperature measurement method, based on the principle of back Raman scattering and optical time domain scattering, to obtain the steady-state temperature data / transient temperature rise data of various parts of the wire.

[0045] When implementing dynamic capacity increase, it may be a steady-state thermal balance or a transient temperature rise. Therefore, whether to obtain steady-state temperature data or transient temperature rise data depends on the actual situation; When the capacity increase is implemented on a time scale, th...

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 power transmission line dynamic capacity increasing method and system. According to the method, the steady-state temperature data / transient temperature rise data of all partsof a wire are measured, a maximum steady-state current-carrying capacity / maximum transient current-carrying capacity are calculated through a neural network model, and the method is more accurate incalculation compared with a conventional method. Meanwhile, a previous round of result is used as training data of a new round of neural network model, the accuracy is further improved along with continuous accumulation of the actual operation data, and the method has good engineering practical value.

Description

technical field [0001] The invention relates to a method and system for dynamically increasing the capacity of a power transmission line, belonging to the technical field of power system automation. Background technique [0002] With the increase of the capacity of the urban transmission network and the increasing shortage of line corridor resources, it is of great significance to achieve considerable dynamic capacity increase without changing the corridor or the tower. Different positions of the same circuit have different allowable carrying capacity due to different wire types, geographical locations, whether they are heat-resistant wires, etc. The traditional dynamic capacity increase method uses the temperature of a small number of discrete temperature measurement points as the average temperature of the entire line to calculate the maximum ampacity of the transmission line when the capacity is increased. Due to changes in wind speed, sunshine and other factors, it is i...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/10H02J2203/20
Inventor 汪惟源刘柏良程锦闽吴刚张瑞永赵新宇赵晶姚成尹恒
Owner JIANGSU ELECTRIC POWER CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com