자이로 구동장치를 이용한 공중물체의 자세제어 및 안정화

An Attitude Control and Stabilization of an Unstructured Object using CMG Subsystem

  • 발행 : 2000.08.01

초록

In this paper, we propose an attitude controller for an unstructured object using CMG(Control Moment of Gyro) subsystem, which has a stabilizer function. The CMG subsystem consists of one motor for spinning the wheel and the other motor for turning the outer gimbal. While the wheel of CMG subsystem is spinning at high speed, applying force to the spin axis of the wheel leads the torque about the vertical axis. We utilize the torque to control the attitude of object in this study. For the stabilizer function, in additiion, holding the load at the current position, the power applied to the gimbal motor of CMG will be cut, which result in the braking force to stop the load by gyro effect. However, due to the gear reduction connected to outer gimbal, slow load motion cannot generate the braking force. Thus, in this study, we are willing to make a holding force by applying control power to the gimbal motor from the signal of piezoelectric gyroscopic sensor that detected the angular velocity of the load. These two features are demonstrated in experiment, carrying a beam with crane. As a result, load was started to rotate by controlling gimbal positiion and was stopped by turning off the gimbal power. Moreover, slow movement of the load was also rejected by additional control with gyroscopic sensor.

키워드

참고문헌

  1. Hiroshi Kanki and ea al, 'Development of CMG Active Vibration Control Device for Gondola,' JSME Int. J. Series C, Vol. 37, No. 3, pp. 468-470, 1994
  2. Jasim Ahmed and et al, 'An Actively Controlled Control Moment Gyro/GyroPendulum Testbed,' Proc. 97 IEEE Int. Conf. on Control Applications. pp. 250-252, 1997 https://doi.org/10.1109/CCA.1997.627549
  3. Feiyue Li and et al, 'Rapid Reorientation Maneuvers of Experimental Spacecraft with a Pendulum Appendage,' J. of Guidance Control & Dynamics, V.21, N.1, pp. 164-171, 1998
  4. Keon Young Yi, Young Gu Chung, 'An Implementation of a Gyro Actuator for the Attitude Control of an Unstructured Object,' IEEE Int. Conf. Robotic and Automation., Vol. 2, pp. 1626 - 1631, 1999 https://doi.org/10.1109/ROBOT.1999.772592
  5. 정영구, 이건영, '자이로 구동장치를 이용한 공중물체의 자세제어' 대한 전기학회 하계 학술대회 논문집, Vol. B, pp. 563-565, 1999
  6. Vernon D. Barger, Martin G. Olsson, Classical Mechanics, McGRAW-HILL, 1995
  7. J. L. Merian, L. G. Kraige, ENGINEERING MECHANICS, WILEY, 1993
  8. Chi-Tsong Chen, Analysis and Synthesis of Linear Control System, Pond Woods Press, 1978
  9. Benjamin C. Kuo, Automatic Control Systems, Prentice Hall, 1995
  10. Norman S. Nise, CONTROL SYSTEM ENGINEERING, Addison-Wesley, 1995
  11. Murata Sensor Datasheet
  12. Sumtak, Rotary Encoder Vol.04, 1998
  13. Maxon, The maxon A-max, 1998
  14. ADVANCED MOTION CONTROLS, PWM Servo Amplifiers Catalog and Technical Manual, 1996
  15. AXIOM, AX5411 General Purpose DA&C Board User's Manual 4th Edition, 1994
  16. ADVANTECH, PCL-833 3-axis Quadrature Encoder and Counter Card PC-LabCard Series User's Manual 1st Edition, 1994