An introduction to infinite-dimensional linear systems theory
An introduction to infinite-dimensional linear systems theory
Optimal actuator/sensor location for active noise regulator and tracking control problems
Journal of Computational and Applied Mathematics - control of partial differential equations
Brief Robust control of parabolic PDE systems with time-dependent spatial domains
Automatica (Journal of IFAC)
Survey A review of methods for input/output selection
Automatica (Journal of IFAC)
Optimal control of switched distributed parameter systems with spatially scheduled actuators
Automatica (Journal of IFAC)
Automatica (Journal of IFAC)
ACC'09 Proceedings of the 2009 conference on American Control Conference
ACC'09 Proceedings of the 2009 conference on American Control Conference
Linear systems with medium-access constraint and Markov actuator assignment
IEEE Transactions on Circuits and Systems Part I: Regular Papers
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The present work aims at the development of a framework within which a moving actuator activation policy and feedback controller synthesis are integrated for diffusion processes modelled by parabolic partial differential equations. It is assumed that the process of interest has either: (i) multiple actuators and the desirable arrangement is to activate only one while keeping the remaining ones dormant, or (ii) a single actuator capable of moving at a priori selected positions within the spatial domain. Practical advantages associated with arrangement (i) are energy cost savings and simplification of the local controller synthesis and the overall switching scheme, and with (ii) is enhanced spatiotemporal disturbance compensation. Feedback controller synthesis methods based on linear matrix inequality techniques are employed for a finite-dimensional Galerkin approximation of the original distributed parameter system. Along with standard controllability criteria, additional conditions are imposed that ensure robustness with respect to a certain class of disturbances. The value of a performance functional is then explicitly calculated by solving a location-parameterized family of Lyapunov matrix equations, and then optimized with respect to the set of admissible actuator locations. Finally, a case study of a moving bed adsorber is presented where the performance-enhancing capabilities of the proposed method is evaluated through simulation studies.