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.