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

Network on-line live line measurement method for line parameter of power system

A technology of line parameters and measurement methods, applied in the direction of fault location, etc., can solve problems such as huge measurement workload, and achieve the effects of saving measurement cost, reducing measurement workload, and reducing the number of power outages

Active Publication Date: 2013-02-20
SHENZHEN SHUANGHE ELECTRIC CO LTD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are more and more mutual inductance lines in the power grid. If the zero-sequence self-inductance of a new line is to be measured, due to its coupling with other operating mutual inductance lines, it is necessary to measure all coupled lines at the same time, resulting in a very heavy measurement workload. huge

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
  • Network on-line live line measurement method for line parameter of power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The present invention will be described below in combination with specific embodiments and with reference to the accompanying drawings.

[0044] The invention relates to an on-line online live measurement method for line parameters of a power system, which is measured online and in real time by a line parameter measurement system in a measurement center.

[0045] The line parameter measuring system as shown in the accompanying drawing includes a communication server and a background machine.

[0046]The communication server is networked with the running acquisition equipment of each substation through high-speed Ethernet. The acquisition equipment of the substation, such as fault recorder, PMU, etc., requires each acquisition equipment to have the same clock system; the background machine obtains the sampling data through the communication server, and Determine the measurement conditions for the data at both ends of the line, and analyze the line parameters for the data...

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 relates to a network on-line live line measurement method for the line parameter of a power system. A measuring center performs network on-line live line real-time measurement according to sets of computer networked data and networked instructions organized by a line parameter measuring system on the basis of a specific sequence. The method sequentially comprises the following steps of: 1) accessing a global positioning system (GPS) signal to a data acquisition device in each transformer substation and correctly running; 2) requesting to establish transmission control protocol (TCP) connection, sending a device configuration information reading command and a real-time data command to the data acquisition device, receiving real-time data and establishing a real-time running chart; 3) actively retrieving the data acquisition device in each transformer station, monitoring the running condition of each line in real time and automatically measuring the line parameter; and 4) storing a line parameter measured value in a database. The data acquisition device which is put into operation and networked on site is utilized, and a new device is not required to be arranged, so that measurement workload can be obviously reduced, measurement cost is saved, power failure frequency is low, and power failure time is short; and the method is easy to operate, and safe and reliable.

Description

technical field [0001] The invention relates to monitoring and recording, in particular to an on-line electrification measurement method for line parameter network of a power system. Background technique [0002] The accuracy of line parameters is directly related to the accuracy of protection action and fault location. "National Standards of the People's Republic of China—Technical Regulations for Relay Protection and Safety Automatic Devices" stipulates that the zero sequence parameters of the line must adopt the measured values. The existing measurement method is to build a measurement platform to measure the current, voltage and other information of the line when the line to be tested is completely out of power and off the grid, and then obtain the actual transmission line parameters. At present, there are more and more mutual inductance lines in the power grid. If the zero-sequence self-inductance of a new line is to be measured, due to its coupling with other operatin...

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 Patents(China)
IPC IPC(8): G01R31/08
Inventor 赵忠任家友袁明军覃松涛郑发林韦恒颜顺衡韩冰巫聪云孙翔秦蓓宁文辉黄东山高立克
Owner SHENZHEN SHUANGHE ELECTRIC CO LTD
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