Global finite-time stabilization of a class of uncertain nonlinear systems

  • Authors:
  • Xianqing Huang;Wei Lin;Bo Yang

  • Affiliations:
  • Department of Electrical Engineering and Computer Science, Case Western Reserve University, Cleveland, OH 44106, USA;Department of Electrical Engineering and Computer Science, Case Western Reserve University, Cleveland, OH 44106, USA;Department of Electrical Engineering and Computer Science, Case Western Reserve University, Cleveland, OH 44106, USA

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2005

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Abstract

This paper studies the problem of finite-time stabilization for nonlinear systems. We prove that global finite-time stabilizability of uncertain nonlinear systems that are dominated by a lower-triangular system can be achieved by Holder continuous state feedback. The proof is based on the finite-time Lyapunov stability theorem and the nonsmooth feedback design method developed recently for the control of inherently nonlinear systems that cannot be dealt with by any smooth feedback. A recursive design algorithm is developed for the construction of a Holder continuous, global finite-time stabilizer as well as a C^1 positive definite and proper Lyapunov function that guarantees finite-time stability.