Control of Homodirectional and General Heterodirectional Linear Coupled Hyperbolic PDEs

• Published in: IEEE transactions on automatic control Vol. 61; no. 11; pp. 3301 - 3314
• Main Authors: Long Hu, Di Meglio, Florent, Vazquez, Rafael, Krstic, Miroslav
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.11.2016; The Institute of Electrical and Electronics Engineers, Inc. (IEEE); Institute of Electrical and Electronics Engineers
• Subjects: Automatic control; Backstepping; Boundaries; Boundary conditions; boundary control; boundary observer; Computer Science; Control systems; Coupling; Couplings; general coupled hyperbolic system; Kernel; Mathematical model; Output feedback; Stabilization; Tracking problem; Trajectory; trajectory tracking; Transport
• ISSN: 0018-9286; 1558-2523
• DOI: 10.1109/TAC.2015.2512847

Research on stabilization of coupled hyperbolic PDEs has been dominated by the focus on pairs of counter-convecting ("heterodirectional") transport PDEs with distributed local coupling and with controls at one or both boundaries. A recent extension allows stabilization using only one control for a system containing an arbitrary number of coupled transport PDEs that convect at different speeds against the direction of the PDE whose boundary is actuated. In this paper we present a solution to the fully general case, in which the number of PDEs in either direction is arbitrary, and where actuation is applied on only one boundary (to all the PDEs that convect downstream from that boundary). To solve this general problem, we solve, as a special case, the problem of control of coupled "homodirectional" hyperbolic linear PDEs, where multiple transport PDEs convect in the same direction with arbitrary local coupling. Our approach is based on PDE backstepping and yields solutions to stabilization, by both full-state and observer-based output feedback, and trajectory tracking problems.