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

A finite-time adaptive control method for two-rotor aircraft based on compound fast terminal sliding mode

A rotorcraft, adaptive control technology, applied in attitude control and other directions, can solve the problem that the sliding surface cannot achieve limited time control, and achieve the effect of improving stability

Active Publication Date: 2022-01-11
ZHEJIANG UNIV OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem that the traditional sliding mode surface cannot achieve finite time control and improve the stability of the two-rotor aircraft system

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 finite-time adaptive control method for two-rotor aircraft based on compound fast terminal sliding mode
  • A finite-time adaptive control method for two-rotor aircraft based on compound fast terminal sliding mode
  • A finite-time adaptive control method for two-rotor aircraft based on compound fast terminal sliding mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] The present invention will be further described below in conjunction with the accompanying drawings.

[0063] refer to Figure 1-Figure 9 , a finite-time adaptive control method for a two-rotor aircraft based on a compound fast terminal sliding mode controller, including the following steps:

[0064] Step 1, establish the dynamic model of the two-rotor aircraft system, initialize the system state, sampling time and control parameters, the process is as follows:

[0065] The dynamic model expression of the two-rotor aircraft system is simplified to the following form

[0066]

[0067] where x 1 、x 2 and are the position, velocity and acceleration of the two-rotor aircraft respectively; f(x 1 ,x 2 ) is a smooth nonlinear function, which represents the uncertainty and disturbance of the whole system; u represents the control input signal, and b represents a constant;

[0068] Step 2, calculate the tracking position error, and design the composite fast terminal sli...

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

A finite-time adaptive control method for a two-rotor aircraft based on a composite fast terminal sliding mode, the control method comprising the following steps: Step 1, establishing a dynamic model of the two-rotor aircraft system, initializing system state, sampling time and control parameters, step 2. Calculate the tracking position error, design the composite fast terminal sliding mode surface, step 3, design the finite-time adaptive sliding mode controller, and step 4, design the Lyapunov function. Under the condition that there are uncertainties and interferences in the two-rotor aircraft system, the present invention realizes the finite time consistent final bounding of the two-rotor aircraft and improves the stability of the two-rotor aircraft.

Description

technical field [0001] The invention relates to a limited-time self-adaptive control method for a two-rotor aircraft based on a compound fast terminal sliding mode. Background technique [0002] Attitude control is an important part of the aircraft. Its stability and quick response play an indelible role in whether the aircraft can complete its flight mission. Among the aircraft, the two-rotor aircraft has attracted the attention of scholars at home and abroad. Because of its simple structure and special flight mode, it has gradually become a hot topic in international research. At the same time, due to relatively low flight requirements and no need for professional runways, it has a certain commercial value. Based on small aircraft, building a two-rotor aircraft flight control system and conducting aircraft motion control research is a hot research field in today's academic circles. [0003] The characteristic of the compound fast terminal sliding mode control method is t...

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): G05D1/08
Inventor 陈强王文鹏孙明轩
Owner ZHEJIANG UNIV OF TECH
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