Indonesian Journal of Electrical Engineering and Computer Science
Vol 12, No 1: January 2014

Nonlinear Direct Robust Adaptive Control Using Lyapunov Method

Yimei Chen (School of Electrical Engineering & Automation, Tianjin Polytechnic University)
Dapeng Wu (School of Electrical Engineering & Automation, Tianjin Polytechnic University)
Chunbo Xiu (School of Electrical Engineering & Automation, Tianjin Polytechnic University)



Article Info

Publish Date
01 Jan 2014

Abstract

   The problem of robust adaptive stabilization of a class of multi-input nonlinear systems with arbitrary unknown parameters and unknown structure of bounded variation have been considered. By employing the direct adaptive and control Lyapunov function method, a robust adaptive controller is designed to complete the globally adaptive stability of the system states. By employing our result, a kind of nonlinear system is analyzed, the concrete form of the control law is given and the meaningful quadratic control Lyapunov function for the system is constructed. Simulation of parallel manipulator is provided to illustrate the effectiveness of the proposed method.DOI : http://dx.doi.org/10.11591/telkomnika.v12i1.3100

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