In this paper, the problem of attitude control of a 3D nonlinear flexible spacecraft is investigated. Two nonlinear controllers are presented. The first controller is based on dynamic inversion, while the second approach is composed of dynamic inversion and γ-synthesis schemes. The extension of dynamic inversion approach to flexible spacecraft is impeded by the nonminimum phase characteristics when the panel tip position is taken as the output of the system. To overcome this problem, the controllers are designed by utilizing the modified output redefinition approach. It is assumed that only three torques in three directions on the hub are used. Actuator saturation is also considered in the design of controllers. To evaluate the performance of the proposed controllers, an extensive number of simulations on a nonlinear model of the spacecraft are performed. The performances of the proposed controllers are compared in terms of nominal performance, robustness to uncertainties, vibration suppression of panel, sensitivity to measurement noise, environment disturbance, and nonlinearity in large maneuvers. Simulation results confirm the ability of the proposed controller in tracking the attitude trajectory while damping the panel vibration. It is also verified that the perturbations, environment disturbances, and measurement errors have only slight effects on the tracking and damping performances.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A Robust Nonlinear Control Approach for Tip Position Tracking of Flexible Spacecraft


    Beteiligte:


    Erscheinungsdatum :

    01.10.2011


    Format / Umfang :

    3896288 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    A Robust Nonlinear Control Approach for Tip Position Tracking of Flexible Spacecraft

    Malekzadeh, Maryam / Naghash, Abolghasem / Talebi, H.A. | Tema Archiv | 2011


    Robust Nonlinear Tracking Control Design for Flexible Spacecraft

    Malekzadeh, M. / Naghash, A. / Talebi, A. et al. | British Library Conference Proceedings | 2009


    Robust Nonlinear Tracking Control Design for Flexible Spacecraft

    Malekzadeh, Maryam / Naghash, Abolghasem / Talebi, Ali | AIAA | 2009