Title :
Robust control with anti-windup compensation for LTI uncertain systems
Author :
Rios-bolivar, Addison ; Delgado, Victor ; Narciso, Flor
Author_Institution :
Fac. de Ing. Escuela de Ing. de Sist., Univ. de Los Andes, Mérida, Venezuela
Abstract :
This paper presents an approach for the synthesis of control systems with actuator saturation compensation. This technique is applied to linear time invariant (LTI) systems with polytopic uncertainties, considering a performance index that involves the difference between the actuator output signal and the controller output and its effect on the control signal. For the purpose of this paper, the actuator saturation is considered as a disturbance in the performance of the control signal action, which allows to establish functional indices for the design of the control law (static output feedback), and for the synthesis of a compensation gain for the windup problem. Thus, the method exhibits certain robustness properties when changes in the functioning of the actuators occur. For the synthesis of static output feedback and compensation gains, a method derived from the robust optimal control techniques in H2/H∞ for linear systems with polytopic uncertainties based on linear matrix inequalities is proposed here. In order to verify the properties of the proposed technique, a numerical example is presented in this paper.
Keywords :
H∞ control; compensation; control system synthesis; feedback; linear matrix inequalities; linear systems; robust control; uncertain systems; LTI uncertain systems; actuator saturation compensation; antiwindup compensation; control system synthesis; linear matrix inequalities; linear time invariant systems; polytopic uncertainties; robust optimal control techniques; static output feedback; Measurement; Robustness; Anti-Windup Compensation; H2/H∞ Control; LMI; Robust Control; Uncertain Systems;
Conference_Titel :
World Automation Congress (WAC), 2010
Conference_Location :
Kobe
Print_ISBN :
978-1-4244-9673-0
Electronic_ISBN :
2154-4824