A simple tracking control for Chua´s circuit

This brief addresses the problem of designing a robust tracking controller for a nonlinear Chua´s circuit involving plant uncertainties and external disturbances. Given a bounded desired trajectory, a robust tracking controller, which is based on modeling-error compensation is developed such that all the states and signals of the closed-loop system are bounded and the tracking error can be made as small as desired. In contrast to the previous proposed controllers for tracking control of Chua´s circuit, the controller developed here is linear and equivalent to a traditional PI compensator.