Open AccessAdaptive tracking and command shaped vibration control of flexible spacecraft
Author(s) -
Zhu Wanwan,
Zong Qun,
Tian Bailing
Publication year - 2019
Publication title -
iet control theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.059
H-Index - 108
eISSN - 1751-8652
pISSN - 1751-8644
DOI - 10.1049/iet-cta.2018.5051
Subject(s) - control theory (sociology) , spacecraft , residual , tracking error , input shaping , multivariable calculus , tracking (education) , vibration , adaptive control , impulse (physics) , computer science , vibration control , engineering , control engineering , control (management) , algorithm , physics , artificial intelligence , aerospace engineering , acoustics , psychology , pedagogy , quantum mechanics
An adaptive multivariable continuous non‐singular terminal sliding mode (NTSM) control scheme with fast and robust input shaper (FRIS) is developed for flexible spacecraft which is subject to external disturbances. Firstly, the FRIS is proposed to suppress residual vibration of flexible spacecraft. It is shown that the FRIS decreases the duration of the impulse sequence at the meanwhile it is robust to parameter uncertainties. Then the adaptive multivariable continuous NTSM control is proposed to the attitude tracking of flexible spacecraft and the supression of residual vibration in finite time. The remarkable feature of the developed algorithm is to eliminate the overestimation of the control gains, and the tracking errors can be driven into a small region around zero in finite time even in the presence of bounded but unknown disturbances. Finally, some numerical simulations are performed to validate the efficiency of the developed algorithm.