Systems Engineering and Electronics ›› 2021, Vol. 43 ›› Issue (6): 1664-1672.doi: 10.12305/j.issn.1001-506X.2021.06.25

• Guidance, Navigation and Control • Previous Articles     Next Articles

Dynamic surface backstepping trajectory tracking control of unmanned underwater vehicles with ocean current disturbances

Xiaoming CAO1,*, Yong WEI1, Hui HENG1, Zhipeng SHEN2   

  1. 1. Department of Missile and Weapons, Navy Submarine Academy, Qingdao 266199, China
    2. School of Maritime Electrical Engineering, Dalian Maritime University, Dalian 116026, China
  • Received:2020-03-27 Online:2021-05-21 Published:2021-05-28
  • Contact: Xiaoming CAO

Abstract:

Aiming at the trajectory tracking problem of unmanned underwater vehicle (UUV) with unknown ocean current disturbances, a dynamic surface backstepping trajectory tracking control strategy of underdrive UUV is proposed. Firstly, the novel ocean currents observer is designed to estimate the unknown ocean current disturbances of the dynamics equations. Then, the three dimensional trajectory tracking controllers are designed to combine backstepping method with dynamic surface control (DSC) technique, which can transform the differential operation in control algorithm into a simple algebraic operation, then reduce the complexity and avoid differential explosion of the control algorithm. Furthermore, the Lyapunov function is selected to prove the closed-loop stability of system. Finally, the designed controller is verified by simulation. The simulation results show that the proposed observer can effectively deal with time-varying ocean current disturbances, and accurately realize the trajectory tracking control of UUV.

Key words: unmanned underwater vehicle (UUV), three dimensional trajectory tracking, ocean currents observer, dynamic surface control (DSC)

CLC Number: 

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