Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Optimal Fitting Method and System of Propagation Matrix Modulus Based on Differential Evolution Algorithm

A differential evolution algorithm and propagation matrix technology, applied in the field of power transmission, can solve problems such as consuming a lot of time and achieve the effect of improving efficiency

Active Publication Date: 2021-11-09
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The problem is that, for a given target fitting accuracy, a fitting method with incremental number of poles usually consumes a lot of time trying different numbers of poles one by one

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
  • Optimal Fitting Method and System of Propagation Matrix Modulus Based on Differential Evolution Algorithm
  • Optimal Fitting Method and System of Propagation Matrix Modulus Based on Differential Evolution Algorithm
  • Optimal Fitting Method and System of Propagation Matrix Modulus Based on Differential Evolution Algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0082] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0083] The purpose of the present invention is to provide a method and system for optimal fitting of the propagation matrix modulus based on the differential evolution algorithm. The differential evolution algorithm is introduced to determine the optimal fitting parameters, which are the number of poles and the delay time, and the corresponding fitting parameters are obtained. fit model.

[0084] In order to make the above objects, features and advantages of t...

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 present invention relates to a propagation matrix modulus optimization fitting method and system based on differential evolution algorithm, comprising: determining target fitting accuracy tol and fitting frequency range; determining the range of pole numbers; determining the range of delay τ; The range of τ determines the maximum value of the delay encoding vector; the maximum value of the pole number encoding vector is determined based on the range of the number of poles; the number of solutions is determined to be N; the relevant parameters in the initial iteration process are initialized; the iterative calculation is performed based on the relevant parameters; The solution x in the population with the smallest δ * , get the number of poles and delays it contains, and perform the above steps to get new poles; according to the number of poles, delays and new poles obtained by the above steps, use vector fitting technology to calculate the modulus of the propagation function matrix Fitting, calculate the fitting error, and output the fitting result and fitting error. The above-mentioned method in the present invention introduces a differential evolution algorithm, which can solve this nonlinear optimization problem well, and improves efficiency.

Description

technical field [0001] The invention relates to the field of electric power transmission, in particular to a method and system for optimizing and fitting a propagation matrix modulus based on a differential evolution algorithm. Background technique [0002] Power transmission lines are important power transmission equipment. In the power system, except for electrical equipment and power plants, the rest are all power grids composed of transmission lines, so transmission lines play an irreplaceable role in the power system. The frequency range of the overvoltage caused by power equipment failure, lightning strike or improper operation is much larger than the frequency range of the normal operation of the system, and contains a large number of high-frequency components. Therefore, in the transient calculation, a traveling wave model is established for the power transmission line. The traveling wave model regards the change of voltage and current on the power transmission lin...

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): G06F17/16G06N3/12
CPCG06F17/16G06N3/126
Inventor 葛青宇焦重庆
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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
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