Abstract
This paper researches the proportional-derivative (PD) feedback control with feed-forward compensations from input for a triangular tethered satellite system (TTSS), and the extended state observer (ESO) design which is further incorporated in control to estimate the structural uncertainties in system. By expanding Lagrangian equations under chosen variables, the dynamic equations of TTSS are derived which is the second-order nonlinear equation. Then the feedback control under typical feed-forward compensations is discussed as the nonlinear functions in system are counteracted, and the controlled outputs are computed by deriving the transfer functions of the transformed structures. Moreover, in case of the uncertain structures in system which may constrain the control effect, ESO-based PD control is further proposed, and the observed error and controlled accuracy are analyzed by Lyapunov functions. Simulation results on the designed controls are presented to validate the theoretic analyses.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
