Active disturbance rejection control for heavy cargo airdrop operations

Authors

  • Shiwei Zhao Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an, 710038, P.R. China
  • Xiuxia Sun Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an, 710038, P.R. China
  • Ri Liu Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an, 710038, P.R. China
  • Dong Wang Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an, 710038, P.R. China

Keywords:

airdrop operations, nonlinear state error feedback, active disturbance rejection control, flight safety, robustness

Abstract

In view of the strong nonlinear and coupling characteristics of the airdrop operations, a novel control method is proposed based on the active disturbance rejection control (ADRC) for decoupling control strategy of the pitch angle and airspeed. The unknown disturbances, including aerodynamic uncertainty and nonlinear coupling effect between the aircraft and cargo dynamics, are estimated and compensated with the extended state observer (ESO). Meanwhile, the nonlinear law state error feedback (NLSEF) is adopted to restrain the compensation residual. Simulation and flight quality evaluation shows the satisfactory capacity and strong robustness of the proposed control method in guaranteeing the airdrop task and flight safety.

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Published

2018-03-23

Issue

Engineering Review, Vol. 38, No. 2

Section

Articles

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