Affiliation:
1. Department of Electrical and Electronic Engineering, The Shiraz University of Technology, Modarres Boulevard, P.O. Box: 71555-313, Shiraz, Iran
Abstract
Abstract
This paper proposes a disturbance observer (DO)-based method for shaping robust limit cycles in a class of uncertain nonlinear systems. The modified Lyapunov theorem is utilized to shape desirable limit cycles in the nominal system. Then, a high-gain filter is designed to robustify the controller and add the nominal performance recovery capability to it. It is proved that the trajectories of uncertain system coincide with those of the nominal system. The effective performance of the proposed controller is illustrated by simulation.
Subject
Applied Mathematics,Mechanical Engineering,Control and Systems Engineering,Applied Mathematics,Mechanical Engineering,Control and Systems Engineering
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