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

Electromagnetic disturbance waveform feature extracting method for transformer substation gas insulation switch

A gas-insulated switch, electromagnetic disturbance technology, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc.

Inactive Publication Date: 2015-02-18
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a lack of a reliable method for extracting the waveform characteristics of the electromagnetic disturbance caused by the switch operation of the GIS substation, which is exactly the significance of the present invention

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
  • Electromagnetic disturbance waveform feature extracting method for transformer substation gas insulation switch
  • Electromagnetic disturbance waveform feature extracting method for transformer substation gas insulation switch
  • Electromagnetic disturbance waveform feature extracting method for transformer substation gas insulation switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The invention provides a method for extracting electromagnetic disturbance waveform features of a gas insulated switch in a substation, based on the following Figure 1~6 , specifically explain the preferred embodiment of the present invention.

[0047] according to figure 1 The schematic diagram of the test system and the figure 2 The flow chart of waveform feature extraction of electromagnetic disturbance caused by switching operation of GIS substation is shown. The extraction method of the waveform feature of the electromagnetic disturbance caused by the GIS substation switch operation specifically includes the following steps:

[0048] Step 1: When the switch operation of the GIS substation under different voltage levels, record the electromagnetic disturbance waveform data of the analog sensor port A on the GIS pipeline or the intelligent component port a in the GIS control cabinet; the measurement system for measuring the electromagnetic disturbance waveform re...

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 an electromagnetic disturbance waveform feature extracting method for a transformer substation gas insulation switch and belongs to the field of the electromagnetic compatibility technology for secondary equipment of transformer substations. The electromagnetic disturbance waveform feature extracting method for the transformer substation gas insulation switch specially comprises the steps that when on-off operation is conducted on an GIS transformation substation under different voltage classes, electromagnetic disturbance waveform data of the port of a sensor on a GIS pipeline or the port of an intelligent component in a GIS collection control cabinet are measured and recorded; the obtained electromagnetic disturbance waveform data are calculated according to a formula for the common-mode voltage and difference-mode voltage in electromagnetic compatibility conducted interference, so that a common-mode interference waveform and a difference-mode interference waveform are obtained; macroscopic feature parameters and microscopic feature parameters are extracted respectively. By the adoption of the electromagnetic disturbance waveform feature extracting method for the transformer substation gas insulation switch, all macroscopic feature parameters and all microscopic feature parameters of disturbance waveforms can be obtained reliably and accurately, and quantitative analysis of the waveforms of electromagnetic disturbance caused by on-off operation of the GIS transformation substation is achieved.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic compatibility of substation secondary equipment, and in particular relates to a method for extracting electromagnetic disturbance waveform features of gas insulated switches in substations, in particular to a method for extracting waveform features of electromagnetic disturbance caused by switch operations in GIS substations. Background technique [0002] Gas insulated switchgear (GIS) substation has the advantages of small footprint, good sealing, little impact on the environment, high operational reliability, long maintenance cycle, less maintenance workload, low operating cost, etc., and has been widely used in my country's power grid. application. When the isolation switch in the GIS is operated, a traveling wave with a very steep wave head is generated, and these traveling waves form a very fast transient overvoltage after multiple refraction and reflections in the GIS. When it reache...

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): G01R31/00
Inventor 刘骁繁吴恒天焦重庆崔翔
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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