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Volume 41 Issue 11
Nov.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(11): 2085-2094.
WU Chao, WANG Haowen, JIANG Chen, et al. LADRC-based attitude decoupling control for helicopter and parameters tuning[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(11): 2085-2094. doi: 10.13700/j.bh.1001-5965.2014.0710(in Chinese)
Citation: WU Chao, WANG Haowen, JIANG Chen, et al. LADRC-based attitude decoupling control for helicopter and parameters tuning[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(11): 2085-2094. doi: 10.13700/j.bh.1001-5965.2014.0710(in Chinese)
shu

LADRC-based attitude decoupling control for helicopter and parameters tuning

doi: 10.13700/j.bh.1001-5965.2014.0710
  • 1.

    National Key Laboratory of Science and Technology on Rotorcraft Aeromechanics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • 2. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China

  • Received Date: 17 Nov 2014
  • Rev Recd Date: 13 Feb 2015
  • Publish Date: 20 Nov 2015
    Abstract
  • To meet the ADS-33E-PRF flight quality and effectively overcome the influence of external disturbance, an attitude control strategy based on a linear active disturbance rejection control (LADRC) is proposed for helicopter. Flight dynamics model of UH-60A and the wind model were established. UH-60A was trimmed for verifying accuracy of dynamic model and trim algorithm. Helicopter attitude decoupling control loop based on the single input/single output second-order LADRC controller was set up with stabilization feedback loop. The controller parameter tuning problem was transformed into constrained optimization problem in time and frequency domain according to quality requirement of ADS-33E-PRF. Combining H-infinity synthesis algorithm and steepest descent algorithm, the optimization of parameters was calculated. Quality assessment of attitude control was made and the control loop was applied to the attitude hold control simulation in atmospheric disturbance. The results of simulation and quality evaluation show that the attitude control system based on LADRC has good decoupling performance and capability of anti-disturbance.

     

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