Smooth finite-time coordinated attitude control for a space robot based on adaptive multivariable disturbance compensation

Jinyuan Wei, Jianping Yuan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work investigates a smooth finite-time coordinated attitude control scheme for the space robot with strong system nonlinearities, multiple input torques, coupled uncertainties and unknown disturbances. This paper reformulates the dynamic equations of a space robot by taking reaction wheels into account. An adaptive multivariable generalized super-twisting algorithm based on sliding mode disturbance observer is introduced to estimate the lumped disturbances with unknown bounds in finite time. Utilizing the estimation as feedforward compensation, a multivariable homogenous smooth twisting algorithm based on coordinated controller is designed to ensure the finite-time attitude tracking and generate a smooth input signal. Simulations are provided to demonstrate the effectiveness and robustness of the proposed method.

Original languageEnglish
Title of host publicationDynamics and Control of Space Systems
EditorsJeng-Shing Chern, Ya-Zhong Luo, Xiao-Qian Chen, Lei Chen
PublisherUnivelt Inc.
Pages965-980
Number of pages16
ISBN (Print)9780877036531
StatePublished - 2018
Event4th IAA Conference on Dynamics and Control of Space Systems, DYCOSS 2018 - Changsha, China
Duration: 21 May 201823 May 2018

Publication series

NameAdvances in the Astronautical Sciences
Volume165
ISSN (Print)0065-3438

Conference

Conference4th IAA Conference on Dynamics and Control of Space Systems, DYCOSS 2018
Country/TerritoryChina
CityChangsha
Period21/05/1823/05/18

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