On-line monitoring device and method for corona discharge of ultra-high voltage power transmission line

A technology of power transmission lines and corona discharge, which can be used in measuring devices, measuring electricity, measuring electrical variables, etc., and can solve the problems of difficulty in identifying light sources and low reliability.

Inactive Publication Date: 2012-01-25
JIANGSU UNIV OF SCI & TECH
View PDF7 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application number is "201020170413.1" and the name is "intelligent UHV electroscope", which characterizes the intensity of the discharge by detecting the number of ultraviolet pulses generated by the discharge. Although this method has the characteristics of non-contact, strong anti-interference ability and high sensitivity , but it is diffic

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
  • On-line monitoring device and method for corona discharge of ultra-high voltage power transmission line
  • On-line monitoring device and method for corona discharge of ultra-high voltage power transmission line
  • On-line monitoring device and method for corona discharge of ultra-high voltage power transmission line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] The present invention will be further described below with reference to the drawings and specific embodiments.

[0063] The technical solution adopted for the corona discharge detection of the UHV transmission line is: the sensor unit 1 collects field environmental data through the temperature and humidity sensor, the ultraviolet sensor collects the ultraviolet corona discharge pulse, and the high-frequency micro-current sensor collects the leakage current at the insulator end of the equipment; signal conditioning The photoelectric isolation circuit in unit 2 effectively suppresses the noise of the temperature and humidity signal and then transmits it to the signal processing unit 3. C3704 conditions the collected ultraviolet pulse signal and transmits it to the signal processing unit 3. The high-frequency micro-current sensor first passes the front-end shock protection circuit (to prevent the instantaneous large current generated when the flashover occurs from causing d...

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 an on-line monitoring device and method for the corona discharge of an ultra-high voltage power transmission line. The on-line monitoring device comprises a sensor unit, a signal conditioning unit, a signal processing unit, a wireless communication unit, an upper computer monitoring unit, a system failure diagnosing unit and a system power supply unit. The on-line monitoring method comprises the following steps of: carrying out signal acquisition for the field working state of power transmission equipment by the sensor unit; transforming data types through the signal conditioning unit to obtain a useful signal which can be identified by a CPU (Central Processing Unit) of the signal processing unit; sending the processed data to the wireless communication unit through a serial port by the signal processing unit; and receiving the data and carrying out failure diagnosis by an upper computer server so as to give the current operation state of the equipment, equipment parameters and a failure diagnosis result.

Description

technical field [0001] The invention relates to an on-line monitoring device for corona discharge of an extra-high voltage transmission line and an operation and fault diagnosis method, in particular to an on-line monitoring device based on dual signals of ultraviolet and leakage current and a fault diagnosis method based on data fusion. Background technique [0002] Nowadays, the construction of smart grid is booming, and the operation status of the transmission line is a direct reflection of the safety and health level of the line. By developing an advanced, applicable, stable and reliable line operation status monitoring device, the line operation information can be obtained in time, so that when hidden dangers are found Early warning and maintenance treatment, so as to avoid the occurrence of power grid accidents, has become an important link in the construction of smart grid. [0003] At present, my country mainly adopts the method of scheduled power outage maintenance ...

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): G01R31/02G08C17/02
Inventor 曾庆军董永超王彪李春华刘利
Owner JIANGSU UNIV OF SCI & TECH
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