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Volume 39 Issue 1
Jan.  2013
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Journal of Beijing University of Aeronautics and Astronautics  > 2013  >  (1): 52-56.
Zhang Cong, Liu Gang, Li Guangjunet al. High-precision control for inertia momentum wheel based disturbance observer[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 52-56. (in Chinese)
Citation: Zhang Cong, Liu Gang, Li Guangjunet al. High-precision control for inertia momentum wheel based disturbance observer[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 52-56. (in Chinese)
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High-precision control for inertia momentum wheel based disturbance observer

  • School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 07 Nov 2011
  • Publish Date: 31 Jan 2013
    Abstract
  • To improve the output torque accuracy, a novel disturbance rejection strategy was presented with disturbance observer, based on the internal disturbance torque of inertia momentum wheel. By establishing the dynamic model of inertia momentum wheel, the existing torque control system was analyzed. The analysis results indicated that the torque control couldn't track the torque instruction without deflection, essentially. The proposed disturbance observer was designed. According to the estimated disturbance torque, the compensation control voltage was calculated. Ultimately, the control system was designed to carry out experimentations on the prototype of inertia momentum wheel. Experimental results demonstrate that the output torque accuracy can be improved from 0.01 N穖 to 0.002 N穖 by the disturbance rejection strategy. And the rotational speed and torque response curves are more smooth.

     

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