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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Demetriou, M.A. Borggaard, J. |
| Copyright Year | 2003 |
| Description | Author affiliation: Dept. of Mech. Eng., Worcester Polytech. Inst., MA, USA (Demetriou, M.A.) |
| Abstract | In many works, the location and placement of actuating devices in systems governed by distributed parameter systems is primarily based on either controllability or performance based criteria. Locations that yield enhanced controllability, i.e., rendering systems "more controllable" or enhance a performance-based criterion (usually LQR-type) are considered optimal. The control signal is subsequently calculated using an optimal or robust functional based on those actuator choices. While the resulting control with this "optimal" location provides improved performance, it nonetheless ignores the spatial variation of the disturbance distribution function. A way to enhance control robustness is to place the actuators in locations that provide optimality with respect to worst-case spatial distributions of disturbances. Once this is achieved, a robust controller may then be designed accounting for a worst-case temporal disturbance function. This idea is implemented in a class of parabolic distributed parameter systems where it is observed that locations that might yield an optimal location using solely performance measures might produce poor robustness with respect to spatiotemporal disturbances. Computational issues regarding the robustness measure for placing actuators subject to a "worst-case" disturbance are examined and a numerical example is presented to support the theoretical findings of this work. |
| Sponsorship | American Automatic Control Council IFAC |
| Starting Page | 2114 |
| Ending Page | 2119 |
| File Size | 484733 |
| Page Count | 6 |
| File Format | |
| ISBN | 0780378962 |
| ISSN | 07431619 |
| DOI | 10.1109/ACC.2003.1243386 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-06-04 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Actuators Robust control Electrical capacitance tomography Control systems Optimal control Distributed parameter systems Controllability Distribution functions Mathematics Distributed computing |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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