Back-stepping control of two-link flexible manipulator based on an extended state observer

Hongjiu Yang, Yang Yu, Yuan Yuan, Xiaozhao Fan

Research output: Contribution to journalArticlepeer-review

87 Scopus citations

Abstract

In this paper, we consider trajectory tracking control of a two-link flexible manipulator model in space. Two variables of joint angle and elastic deformation are partly decoupled by a nonlinear decoupling feedback control method. An extended state observer is introduced to estimate nonlinear terms of the two-link flexible manipulator system. Based on a back-stepping method, a nonlinear controller is designed for the flexible manipulator system. Finally, some simulation results are given to demonstrate the effectiveness of the developed techniques in this paper.

Original languageEnglish
Pages (from-to)2312-2322
Number of pages11
JournalAdvances in Space Research
Volume56
Issue number10
DOIs
StatePublished - 2015
Externally publishedYes

Keywords

  • Back-stepping control
  • Extended state observer
  • Flexible manipulator
  • Trajectory tracking control

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