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

A rectifying tower fault diagnosis method of an improved particle swarm optimization support vector machine

A technology of support vector machines and improved particle swarms, applied in computer parts, instruments, manufacturing computing systems, etc., to improve classification accuracy and improve the effect of falling into local optimum

Active Publication Date: 2019-06-14
HANGZHOU DIANZI UNIV
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a rectification tower fault diagnosis method that improves the particle swarm optimization support vector machine, effectively improves the problem that the particle swarm is trapped in a local optimum, thereby improving the classification and identification accuracy of the rectification tower fault diagnosis, to solve the above background questions raised in technology

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
  • A rectifying tower fault diagnosis method of an improved particle swarm optimization support vector machine
  • A rectifying tower fault diagnosis method of an improved particle swarm optimization support vector machine
  • A rectifying tower fault diagnosis method of an improved particle swarm optimization support vector machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Such as figure 1 As shown, a rectification column fault diagnosis method for improved particle swarm optimization support vector machine, the method specifically includes the following steps:

[0037] Step 1: Setting of initial value of particle swarm, given input data X={X 1 ,...,X n} and learning objective y={y 1 ,...,y n} are all derived from the fault data of rectification tower, where T max The maximum number of iterations is 300, set w as the inertia weight of 0.9, and the acceleration factor c 1 is 1.6, the acceleration factor c 2 1.5, V max The initial maximum set speed is 120, X max Set the position to 180 for the initial maximum. Given the parameter C, the range of σ is [0,100], C is the penalty coefficient, and σ is the selected RBF function (K(x i ,x j ) = exp(||x i -x j || 2 / σ 2 )) As a kernel, a parameter of this function, i=1,2,...n,j=1,2,...n,x i =[x 1 ,...,x n ]∈X represents the multiple feature space contained in each sample of the in...

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 rectifying tower fault diagnosis method of an improved particle swarm optimization support vector machine, which is optimized according to the following steps of (1) setting an initial value of a system subgroup, and giving a range of a parameter C; And (2) randomly generating positions and speeds of the particles, and evaluating a fitness value of each particle accordingto a fitness function, and (3) updating the speed and the position according to a corresponding improved formula, and (4) checking whether a termination condition is met or not, if so, ending searching, and if not, returning to the step (2) for recalculation, and (5) obtaining parameters of the optimized support vector machine, and establishing the improved particle swarm optimization support vector machine model. According to the method, the problem that a common particle swarm optimization support vector falls into local optimum and the like due to the fact that the common particle swarm optimization support vector is too large or too small in speed limit value selection at the beginning is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of optimization algorithm application, and in particular relates to a method for diagnosing a rectification tower fault by improving a particle swarm optimization support vector machine. Background technique [0002] In the production process of the petrochemical industry, the distillation column occupies an important position. The rectification tower is a tower-type vapor-liquid contact device that utilizes the different volatilities of each component in the mixture to achieve the purpose of separation, thereby achieving rectification. In the petrochemical industry and other industries, the quality of the distillation column equipment in the operation process is directly related to the economic benefits of the enterprise. Therefore, fault diagnosis of distillation columns can improve process safety and product quality. [0003] In today's rapidly developing technological society, fault diagnosis begins to...

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 Applications(China)
IPC IPC(8): G06Q10/04G06K9/62G06Q50/04
CPCY02P90/30
Inventor 郑松裘虹飞葛铭郑小青魏江
Owner HANGZHOU DIANZI UNIV
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