Power signal filtering method for switching event detection

A power signal and event detection technology, applied in the field of electric power, can solve the problems affecting the judgment of switching events, the large difference between the duration and frequency of occurrence, filtering, etc., to achieve the effect of fast calculation speed and simple filtering method

Inactive Publication Date: 2019-02-05
GUANGDONG UNIV OF PETROCHEMICAL TECH
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This method needs to set a reasonable threshold for the power change value, and at the same time there are the following problems: some electrical appliances will have a large peak in the instantaneous power value at the moment of starting, that is, pulse noise (for example, the starting current of the motor is much greater than the rated current), which will cause The steady-state power change value of the electrical appliance is inaccurate, which affects the judgment of the switching event; the transient process of different household appliances is long or short

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 signal filtering method for switching event detection
  • Power signal filtering method for switching event detection
  • Power signal filtering method for switching event detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0075] This embodiment provides a power signal filtering method for switching event detection, image 3 Shown is the power signal filtering method described in this embodiment. Such as image 3 As shown, the power signal filtering method for switching event detection includes the following steps:

[0076] Step S1, input the measured power signal, and set the signal length as N.

[0077] Specifically, input measured power signal sequences P(1), P(2), L, P(N), where N is the length of the power signal sequence.

[0078] Step S2, segmenting the measured power signal and rearranging the segmented data into a power signal matrix P.

[0079] Specifically, including:

[0080] Step S21, divide all the data into N R part.

[0081] Preferably, the N R =256 or 512 or 1024.

[0082] Step S22, segment according to the sequence of data, each segment contains N C data.

[0083] in, symbol Indicates rounding up. For example The purpose of this is that all the data is involved...

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 provides a power signal filtering method for switching event detection, which is used for solving the problem that in the prior art the work signal filtering which have background noisewith obvious non-stationarity and non-Gaussian characteristics cannot effectively and difficult to carry out the switch event detection accurately. The method comprises the following steps of: carrying out the summation of all scales on the filtered power signal to obtain the filtered power matrix. The power signal filtering method for switching event detection power carrying out the multi-scale summation after the power signal is filtered, filtering the voice of the non-stationarity and the non-Gaussian effectively, filtering the power signal effectively and carrying out the precise switch event detection, the filtering method is simple, the calculation speed is high, and therefore complete the accurate decomposition of the household electrical load.

Description

technical field [0001] The invention belongs to the field of electric power, and in particular relates to a power signal filtering method for switching event detection. Background technique [0002] With the development of smart grid, the analysis of household electricity load becomes more and more important. Through the analysis of electricity load, household users can obtain the electricity consumption information of each electrical appliance in a timely manner, as well as a detailed list of electricity charges; the power department can obtain more detailed user electricity consumption information, and can improve the accuracy of electricity load forecasting, Provide a basis for overall planning for the power sector. At present, there are two main methods of electricity load decomposition: intrusive load decomposition and non-intrusive load decomposition. The non-intrusive load decomposition method does not need to install monitoring equipment on the internal electrical ...

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): G01R21/00
CPCG01R21/002
Inventor 翟明岳
Owner GUANGDONG UNIV OF PETROCHEMICAL 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