Systems Engineering and Electronics ›› 2018, Vol. 40 ›› Issue (1): 132-138.doi: 10.3969/j.issn.1001-506X.2018.01.20

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Longitudinal decoupling control for the tail-sitter unmanned aerial vehicle during transition

ZHANG Dizhou, CHEN Zili, HU Yongjiang   

  1. Department of UAV Engineering, Army Engineering University, Shijiazhuang 050003, China
  • Online:2018-01-08 Published:2018-01-08

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Abstract:

In order to solve the longitudinal decoupling control problems for the transition of tail-sitter unmanned aerial vehicle (UAV), the computational fluid dynamics method is used to analyze the aerodynamic characteristics of the UAV, and a timely decoupling control strategy based on total energy principles is proposed. Taking the effect of aerodynamic drag into account, a nonlinear form of the total energy control system is designed to adapt to the large changes of angle of attack and airspeed during the transition flight. Finally, according to the simulation experiments, the tail-sitter UAV has achieved good decoupling control effect during the transition by using the decoupling controller based on total energy principles, and the availability of the method is validated.

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