Journal of Applied Sciences ›› 2016, Vol. 34 ›› Issue (2): 203-214.doi: 10.3969/j.issn.0255-8297.2016.02.010

• Control and System • Previous Articles     Next Articles

Finite-Time Tracking Control of High-Performance Underactuated USV

LIU Hai-tao, TIAN Xue-hong, WANG Gui   

  1. College of Engineering, Guangdong Ocean University, Zhanjiang 524088, Guangdong Province, China
  • Received:2015-07-25 Revised:2015-11-28 Online:2016-03-30 Published:2016-03-30

Abstract: Finite-time tracking control is proposed for incomplete symmetrical highperformance underactuated unmanned surface vehicles (USV). Global diffeomorphism transformation is used to obtain the form of nonlinear cascaded systems. Thus tracking control of the original USV system is transformed to stabilization of the cascade system. Based on the finite-time Lyapunov theorem, a finite-time convergent controller is designed to obtain fast response and high tracking-precision. The theoretical analysis and simulations show feasibility and effectiveness of the proposed method.

Key words: unmanned surface vehicle (USV), finite-time control, underactuated control, cascade systems

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