Attitude Maneuver Control of Flexible Spacecraft by Observer-based Tracking Control

  • Published : 2004.01.01

Abstract

A constraint equation-based control law design for large angle attitude maneuvers of flexible spacecraft is addressed in this paper The tip displacement of the flexible spacecraft model is prescribed in the form of a constraint equation. The controller design is attempted in the way that the constraint equation is satisfied throughout the maneuver. The constraint equation leads to a two-point boundary value problem which needs backward and forward solution techniques to satisfy terminal constraints. An observer-based tracking control law takes the constraint equation as the input to the dynamic observer. The observer state is used in conjunction with the state feedback control law to have the actual system follow the observer dynamics. The observer-based tracking control law eventually turns into a stabilized system with inherent nature of robustness and disturbance rejection in LQR type control laws.

References

  1. Agrawal, B. N. and Bang, H., 1995, 'Robust Close-loop Control Design for Spacecraft Maneuver Using On-Off Thrusters,' Journal of Guidane, Control, and Dynamics, Vol. 18, No. 6, pp. 1336-1349 https://doi.org/10.2514/3.21550
  2. Breakwell, J. A., 1981, 'Optimal Feedback Control for Flexible Spacecraft,' Journal of Guidance, Control, and Dynamis, Vol. 4, No. 5, pp. 427-479
  3. Bryson, A. E., 1999, Dynami Optimization, Addison-Wesley
  4. Byers, R. M., Vadali, S. R. and Junkins, J. L., 1989, 'Near-Minimum-Time Closed-Loop Slewing of Flexible Spacecraft,' Journal of Guidance, Control, and Dynamics, Vol. 12, No. 6, pp. 858-865 https://doi.org/10.2514/3.20492
  5. Fujii, H., Ohtsuka, T. and Udo, S., 1989, 'Mission Function Control for Slew Maneuver Experiment,' Journal of Guidance, Control, and Dynamics, Vol. 12, No. 6, pp. 858-865 https://doi.org/10.2514/3.20492
  6. Junkins, J. L., Rahman, Z., Bang, H. and Hecht, N., 1991, 'Near-Minimum-Time Control of Distributed parameter Systems: Analytical and Experimental Results,' Journal of Guidance, Control, and Dynamics, Vol. 14, No. 2, pp. 406-415 https://doi.org/10.2514/3.20653
  7. Junkins, J. L. and Turner, J. D., 1986, Optimal Spacecraft Rotational Maneuvers, Elsevier Science Publisher B. V.
  8. Kim, Y., Suk, J. Kim, S. and Junkins, J. L., 1997, 'Near-Minimum-Time Control of Smart Structures for Slew Maneuver,' Journal of the Astronautical Sciences, Vol. 45, No. 1, pp. 91-111
  9. Meirovitch, L. and Quinn, R., 1987, 'Maneuvering and Vibration Control of Flexible Spacecraft,' Journal of Astronautical Sciences, Vol. 35, No. 3, pp. 301-328
  10. Meirovith, L., 1990, Dynamis and Control of Structures, Wiley Interscience, New York
  11. Singh, G., Kabamba, P. and McClamroch, N., 1989, 'Planar Time Optimal Slewing Maneuvers of Flexible Spacecraft,' Journal of Guidance, Control, and Dynamis, Vol. 12, No. 1, pp. 71-81 https://doi.org/10.2514/3.20370
  12. Sung, Y. G., Lee, J. W. and Kim, H. M., 2001, 'A Robust Control Approach for Maneuvering a Fleible Spacecraft,' KSME International Journal, Vol. 15, No. 2, pp. 143-151
  13. Vadali, S. R., 1984, 'Feedback Control of Flexible Spacecraft Large Angle Maneuvers Using the Liapunov Theory,' Proceedings of the 1984 American Control Conference, Inst. of Electrical and Electronics Engineers, Piscataway, NJ, pp. 1674-1678
  14. VanderVelde, W. and He, J., 1983, 'Design of Space Structure Control Systems Using On-Off Thrusters,' Journal of Guidance, Control, and Dynamics, Vol. 6, No. 1, pp. 759-775
  15. Wie, B., Sinha, R. and Liu, Q., 1993, 'Robust Time-Optimal Control of Uncertain Structural Dynamic Systems,' Journal of Guidance, Control, and Dynaics, Vol. 15, No. 5, pp. 980-983