Title |
Design of H∞ tracking control for linear systems with saturating actuators |
Authors |
이연규(Yi Yearn-Gui) ; 김명순(Kim Myoung-Soon) ; 김진훈(Kim Jin-Hoon) |
Abstract |
In this paper, we consider the H∞ tracking control of linear system with a limited actuator capacity. The considered reference is a general time-varying one with bounded magnitude and rate. By adopting a similarity transform and a new sto variable, we convert the original system equation to new one which has a tracking error as a part of the new state variable. First, we obtain a result on the low-gained H∞ tracking control which never permits the actuator saturation. Next, we give a result on scheduled H∞ tracking control which uses the actuator capacity more effectively. All results are in the form of linear matrix inequalities(LMI) which can be easily checked their feasibility. Finally, we give a numerical example to show the validity and usefulness of our results. |