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Robust feedforward design for a two-degrees of freedom controller
- Source :
-
Systems & Control Letters . Nov2007, Vol. 56 Issue 11/12, p736-741. 6p. - Publication Year :
- 2007
-
Abstract
- Abstract: In this paper we address the problem of designing the feedforward block of a two degrees of freedom controller in the case of single input single output (SISO) discrete-time linear systems with model uncertainty. In this work the design of the feedforward filter is formulated as a robust model matching problem. First, a closed form solution of the optimal noncausal filter, which minimizes the worst-case model matching error for each , is obtained. Then, suitable rational stable approximations of the optimal solution are derived either by means of causal filters or, when a preview of the reference signal is available, by means of noncausal FIR filters. The efficiency of the proposed method is tested on a simulated example. [Copyright &y& Elsevier]
- Subjects :
- *AUTOMATIC control systems
*ENGINEERING instruments
*AUTOMATION
*SYSTEMS theory
Subjects
Details
- Language :
- English
- ISSN :
- 01676911
- Volume :
- 56
- Issue :
- 11/12
- Database :
- Academic Search Index
- Journal :
- Systems & Control Letters
- Publication Type :
- Academic Journal
- Accession number :
- 26334190
- Full Text :
- https://doi.org/10.1016/j.sysconle.2007.04.010