Aghdam, Amir G. and Davison, Edward J. (2008) Discrete-time control of continuous systems with approximate decentralized fixed modes. Automatica, 44 (1). pp. 75-87. ISSN 00051098
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Official URL: http://dx.doi.org/10.1016/j.automatica.2007.05.004
Abstract
In this paper, the discrete-time control of decentralized continuous-time systems, which have approximate decentralized fixed modes, is studied. It is shown that under certain conditions, discrete-time controllers can improve the overall performance of the decentralized control system, when a linear time-invariant continuous-time controller is ineffective. In order to obtain these conditions, a quantitative measure for different types of approximate fixed modes in a decentralized system is given. In this case, it is shown that discrete-time zero-order hold (ZOH) controllers, and in particular, that generalized sampled-data hold functions (GSHF), can significantly improve the overall performance of the resultant closed-loop system. The proposed sampled-data controller is, in fact, a linear time-varying controller for the continuous-time system.
| Divisions: | Concordia University > Gina Cody School of Engineering and Computer Science > Electrical and Computer Engineering |
|---|---|
| Item Type: | Article |
| Refereed: | Yes |
| Authors: | Aghdam, Amir G. and Davison, Edward J. |
| Journal or Publication: | Automatica |
| Date: | 2008 |
| Digital Object Identifier (DOI): | 10.1016/j.automatica.2007.05.004 |
| Keywords: | Decentralized control; Sampled-data control; Decentralized fixed modes; Approximate fixed modes |
| ID Code: | 975167 |
| Deposited By: | Danielle Dennie |
| Deposited On: | 22 Jan 2013 14:00 |
| Last Modified: | 18 Jan 2018 17:39 |
References:
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