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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (23): 330361.doi: 10.7527/S1000-6893.2024.30361

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Nonlinear disturbance observer enhanced adaptive backstepping tracking control for coaxial HAUV

Mingqing LU1,2, Fei LIAO2, Fukui GAO1, Beibei XING3, Shichong WU2,4, Zhaolin FAN2, Yumin SU1, Wenhua WU2()   

  1. 1.National Key Laboratory of Autonomous Marine Vehicle Technology,Harbin Engineering University,Harbin  150001,China
    2.Key Laboratory of Cross-domain Flight Crossover Technology,China Aerodynamics Research and Development Center,Mianyang  621000,China
    3.School of Oceanography,Shanghai Jiao Tong University,Shanghai  200240,China
    4.School of Systems Science and Engineering,Sun Yat-Sen University,Zhongshan  510006,China
  • Received:2024-03-08 Revised:2024-04-19 Accepted:2024-07-19 Online:2024-12-15 Published:2024-08-05
  • Contact: Wenhua WU E-mail:academicianWWH@163.edu.cn
  • Supported by:
    The Feng Lei Youth Innovation Fund of CARDC(FL018070012);National Defense Key Laboratory Fund(614222003061709)

Abstract:

The stable and accurate trajectory tracking is a prerequisite for Hybrid Aerial Underwater Vehicle (HAUV) to achieve trans-media motion operation. To address the trajectory tracking control problem of coaxial HAUV in water-air cross-medium environments, which faces modeling uncertainty and complex interference, a Nonlinear Disturbance Observer (NDO) enhanced Adaptive Backstepping Controller (ABSC) is designed. The cross-domain mechanism of coaxial HAUV is analyzed, the additional variables such as water, wind and wave are fully considered, and a continuous cross-media dynamic model is established by using smooth and continuous transition function design. Based on the basic framework of Backstepping Controller(BSC), the integrated NDO is used to estimate lumped uncertainty which is difficult to measure, and an adaptive algorithm is introduced to compensate the observation error of NDO. The combination of adaptive algorithm and NDO improves the robustness of the system. The stability of the closed loop system is proved by Lyapunov theory. The simulation results show that the controller designed in this paper has a strong ability to suppress the unknown disturbance and can effectively track the water-air cross-domain trajectory.

Key words: hybrid aerial underwater vehicle, air-water trans-medium, backstepping controller, nonlinear disturbance observer, robust control

CLC Number: