A finite time attitude control law incorporating a disturbance observer is proposed for double tethered satellites system (2-TSS) with a variable length tether in deep space. For each single tethered satellite, a disturbance observer combining with the theory of Extended State Observer (ESO) is firstly utilized to precisely estimate the synthesis of external bounded disturbances and parameter uncertainties. The stability of the observer is analyzed so that the observation errors are globally uniformly ultimately bounded and finally converge to a small neighborhood. Then to realize attitude control with high precision and fast response in finite time, a finite time attitude control law is proposed through designing a fast nonsingular sliding mode surface with a specific switching function. The Lyapunov stability analysis is performed to show that the system states are finite time stable and that the sliding mode surface can reach a small region of origin. Finally, numerical simulations demonstrate the effectiveness of proposed control schemes with disturbance observer.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Finite time attitude control of double tethered satellites system in deep space


    Contributors:
    Li, Chuanjiang (author) / Yao, Junyu (author) / Li, Bo (author) / Ma, Guangfu (author)


    Publication date :

    2016-08-01


    Size :

    3766635 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Precision Attitude Control for Tethered Satellites

    Kline-Schoder, R.J. | Online Contents | 1993


    Precision attitude control for tethered satellites

    Kline-Schoder, Robert J. / Powell, J. D. | NTRS | 1993


    Precision attitude control for tethered satellites

    KLINE-SCHODER, ROBERT J. / POWELL, J. D. | AIAA | 1993



    Attitude Control of Space Platform Based Tethered Satellite System

    Modi, V. J. / Gilardi, G. / Misra, A. K. | British Library Online Contents | 1998