Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (12): 4013-4020.doi: 10.12305/j.issn.1001-506X.2023.12.32

• Guidance, Navigation and Control • Previous Articles    

LPV stability control of morphing aircraft based on SDRE

Guangbin CAI1,*, Dingkun MAO1, Qian YANG1, Xin LI1, Mingzhe HOU2   

  1. 1. College of Missile Engineering, Rocket Force University of Engineering, Xi'an 710025, China
    2. College of Astronautics, Harbin Institute of Technology, Harbin 150001, China
  • Received:2022-07-04 Online:2023-11-25 Published:2023-12-05
  • Contact: Guangbin CAI

Abstract:

Aiming at the problems of external disturbance and parameter uncertainty in the flight process of morphing aircraft, a linear parameter varying (LPV) stable flight control method based on state-dependent Riccati equation (SDRE) is proposed. Firstly, based on the aerodynamic parameter model and longitudinal nonlinear dynamic model of morphing aircraft, considering external disturbance, system parameter error and additional disturbance caused by deformation, the LPV system model is obtained by Jacobi linearization method. Then, for the LPV model considering composite interference, the control law based on SDRE is designed and solved by the θ-Dmethod. Finally, the Monte Carlo simulation verifies that the proposed method can effectively suppress the compound interference, realize the stable flight control of the aircraft, and has strong robustness and anti-interference ability.

Key words: morphing aircraft, state-dependent Riccati equation (SDRE), linear parameter varying (LPV), θ-D method, external disturbance, parameter uncertainty

CLC Number: 

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