| Citation: | GAO Yang, WU Wenhai, JI Shaokang, et al. High-order LADRC based robust coordinated decoupling control for V/STOL aircraft in hover/translation mode[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(9): 1812-1823. doi: 10.13700/j.bh.1001-5965.2018.0758(in Chinese)
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To deal with the issue of dynamic coupling, thrust vector control redundancy and vulnerability to disturbed wind for vertical and/or short take-off and landing (V/STOL) aircraft in hover/translation mode, a robust coordinated decoupling flight control method based on high-order linear active disturbance rejection control (LADRC) is proposed. Firstly, the thrust vector model and the nonlinear hover/translation motion model under the disturbed wind are established according to the concept of V/STOL aircraft. On this basis, the coordinated control strategy of attitude and position is given in this mode. Then by transforming the control variables, six active disturbance rejection decoupling control laws are designed, which refrains from the redundant control of multiple thrust vectors using LADRC to compensate the total disturbances in real time. Simulation results show the effectiveness of the LADRC applied to hover/translation control and the robustness of the designed control laws for aircraft internal parameter perturbation and external gust disturbance.
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