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

Active Power Filter Adaptive Fuzzy Inversion Tracking Control Method

A power filter, adaptive fuzzy technology, applied in adaptive control, active power filter, general control system, etc.

Inactive Publication Date: 2016-04-06
HOHAI UNIV CHANGZHOU
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, although the existing patents have carried out research on the control of active power filters from different aspects, they have not applied inversion control, fuzzy control and Lyapunov theory to control and control active power filters. dynamic compensation

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
  • Active Power Filter Adaptive Fuzzy Inversion Tracking Control Method
  • Active Power Filter Adaptive Fuzzy Inversion Tracking Control Method
  • Active Power Filter Adaptive Fuzzy Inversion Tracking Control Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] Below in conjunction with accompanying drawing, the present invention is further described:

[0054] Active power filter adaptive fuzzy inversion tracking control method, comprising the following steps

[0055] (1) Establishing the mathematical model of the active power filter

[0056] The invention mainly relates to a parallel voltage type active power filter, which is used to eliminate the harmonic pollution caused by the three-phase diode bridge rectifier load, and its main circuit structure is as follows figure 1 .

[0057] The basic working principle of the active power filter is to quickly obtain the relevant compensation components through real-time collection of the grid current, and through the control of the high-performance converter, the filter generates a current with the same magnitude as the harmonic and opposite direction. Eliminate harmonics present in the grid.

[0058] According to circuit theory and Kirchhoff's theorem, the following three differe...

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 an adaptive fuzzy backstepping tracking control method of an active power filter, relates to controllers of the active power filter and particularly provides an adaptive fuzzy backstepping tracking control method, combining adaptive control, fuzzy control and backstepping control and aiming at a three-phase active power filter. For shortcomings of a backstepping control law design, a fuzzy logic system is utilized to approach an unknown nonlinear function, and the fuzzy logic system is adjusted on line according to an adaptive law, so that harmful effects on the system due to parameter uncertainty are avoided. An adaptive fuzzy backstepping controller enables a compensating current to track an instruction current signal in real time, stabilizes the tracking deviation in neighborhoods of 0 and utilizes the Lyapunov method to analyze the stability and the convergence of the system so as to guarantee that all signals in a closed-loop system has global asymptotic stability.

Description

technical field [0001] The invention belongs to active power filter technology, in particular to an adaptive fuzzy inversion tracking control method for an active power filter. Background technique [0002] With the popularization and application of modern power electronic technology, there are more and more various power electronic devices. The working performance and service life of equipment and electrical equipment, and even the safety of critical power systems. Currently, external filters are mainly used for treatment. Filters are divided into two types: passive filters and active power filters. Due to the defects of passive filters that can only compensate for specific harmonics, the current treatment of power problems is mainly focused on active power filters. The active power filter can track and compensate the harmonics with changing frequency and amplitude. It can not only compensate each harmonic, but also suppress flicker and compensate reactive power. At the s...

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): G05B13/04H02J3/01
CPCY02E40/20
Inventor 侯世玺费峻涛
Owner HOHAI UNIV CHANGZHOU
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