Method for generating failure travelling wave simulation signals

A technology of simulating signals and fault traveling waves, applied in the direction of the fault location, etc., can solve the problems of easy distortion of traveling wave signals, difficulty in obtaining fault traveling wave signals, and difficulty in accurate synchronous triggering of source traveling wave signals during double-terminal ranging, achieving Solve the effect of traveling wave output distortion

Active Publication Date: 2015-05-27
中国南方电网有限责任公司超高压输电公司柳州局
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for generating a fault traveling wave simulation signal, which can solve the problem that it is difficult to obtain a true and effec

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
  • Method for generating failure travelling wave simulation signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

[0020] figure 1 The method for generating fault traveling wave simulation signals shown uses a traveling wave ranging verification device, which includes an interconnected upper computer, a main control unit, a secondary control unit, a storage unit, a digital-to-analog conversion unit and a current Module unit; the main control unit establishes communication with the host computer through the parallel interface, analyzes the waveform data download command downloaded from the host computer, and gradually downloads the waveform data of each channel to the corresponding storage unit through the data bus, and controls the sub-control unit Read the waveform data point by point from the corresponding storage unit, and at the same time output the data of the storage unit to the digital-analog conversion unit through the sub-control unit; the sub-control unit ...

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 method for generating failure travelling wave simulation signals and belongs to the technical field of power transmission detection. The method comprises the following steps: receiving and analyzing a waveform data downloading command and downloading waveform data into corresponding memory units by a main control unit, and respectively reading the waveform data from the memory units and outputting the data of the memory units to a digital-to-analog conversion unit through an auxiliary control unit; providing a playback address for the memory units and providing a playback clock for the digital-to-analog conversion unit through the auxiliary control unit; converting the quantity of the waveform data output by the memory units to an analog quantity by the digital-to-analog conversion unit; converting the analog quantity output by the digital-to-analog conversion unit to high-frequency current and outputting the high-frequency current by a current modular unit; inputting clock pulses into the main control unit by a global positioning system module. The method can solve the problems that true and effective failure travelling wave signals are difficult to obtain, the output travelling wave signals easily distort, and travelling wave signal sources are difficult to be synchronously triggered during double-terminal location.

Description

technical field [0001] The invention relates to the technical field of electric power transmission detection, in particular to a method for generating fault traveling wave simulation signals. Background technique [0002] In the power system, due to the long transmission line and the uncertainty of the fault point, the distance measurement of the fault point of the transmission line becomes particularly important. Accurate fault location can reduce the scope of line inspection, reduce power outage time, and improve line power supply reliability. After a fault occurs on a transmission line, under the action of an additional power source at the fault point, traveling waves of voltage and current that travel close to the speed of light will be generated on the line. Using traveling waves to measure the distance to the fault point is an effective method for fault detection of transmission lines. A double-terminal ranging method for transmission line faults, using current trave...

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): G01R31/08
Inventor 张健全阳仁庆胡付有申狄秋荣军尹忠葵宋阳瞿敏王宇鹏欧俊延
Owner 中国南方电网有限责任公司超高压输电公司柳州局
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