Title :
Predictor-based reference governor for second-order linear constrained systems operated over a communication network
Author :
Qinghua Li ; Kalabic, Uros ; Kolmanovsky, Ilya
Author_Institution :
Space Control & Inertial Technol. Res. Center, Harbin Inst. of Technol., Harbin, China
Abstract :
The paper considers the application of reference governors to enforce state and control constraints in second order closed-loop systems operated remotely over communication networks. The reference governor minimally modifies the reference command to the closed-loop system if this command has a potential to induce constraint violation. Our approach to reference governor design exploits a recently developed fast constraint violation prediction algorithm for second order linear systems, which is extended, in this paper, to handle a time-varying network delay. We also discuss approaches to quantization error handling. A numerical example is reported to illustrate the proposed reference governor implementation.
Keywords :
closed loop systems; control system synthesis; delays; linear systems; predictive control; time-varying systems; closed-loop systems; communication network; control constraints; fast constraint violation prediction algorithm; predictor-based reference governor; quantization error handling; reference governor design; second-order linear constrained systems; state constraints; time-varying network delay; Atmospheric modeling; Closed loop systems; Delays; Linear systems; Mathematical model; Prediction algorithms; Quantization (signal); Reference governor; constrained control; networked systems; state and control constraints; time varying input delay;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2014 11th World Congress on
DOI :
10.1109/WCICA.2014.7052976