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Nonlinear disturbance observer based spacecraft attitude control subject to disturbances and actuator faults

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

Abstract

To achieve high-accuracy spacecraft attitude stabiliztion subject to complex disturbances and actuator faults, a composite controller is proposed by combining a nonlinear disturbance observer (NDO) with an adaptive integral sliding mode controller. The effects of complex disturbances and actuator faults on the spacecraft are treated as a lumped disturbance. The lumped disturbance is estimated by NDO and the estimated result is used as a feedforward compensator. The switching gain is only required to be no less than the upper bound of disturbance estimation error rather than the disturbance, and the over estimation of switching gain, caused by the initial error, is eliminated due to the global feature of the integral sliding mode item. Finally, simulations are conducted to verify the effectiveness of the proposed method.

Original languageEnglish
Title of host publication2017 5th International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation, CDMMS 2017
EditorsShanhong Zhu, Tao Kuang, Dajing Fang
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415041
DOIs
StatePublished - 28 Apr 2017
Event2017 5th International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation, CDMMS 2017 - Busan, Korea, Republic of
Duration: 22 Apr 201723 Apr 2017

Publication series

NameAIP Conference Proceedings
Volume1834
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2017 5th International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation, CDMMS 2017
Country/TerritoryKorea, Republic of
CityBusan
Period22/04/1723/04/17

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