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Pfifer, Harald and Hecker, Simon (2008) Generation of Optimal Linear Parametric Models for LFT-based Robust Stability Analysis and Control Design. In: Proceedings. IEEE Conference on Decision and Control, 2008-12, Cancun, Mexico. (Submitted)
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Abstract
We present a general approach to generate a linear parametric state-space model, which approximates a nonlinear system with high accuracy. It is optimally suited for LFT-based robust stability analysis and control design. At the beginning a Jacobian-based linearization is applied to gernerate a set of linearized state-space systems describing the local behavior of the nonlinear plant about the corresponding equilibrium points. These models are then approximated using multivariable polynominal fitting techniques in combination with global optimization. Tthe objective is to find a linear parametric model, which allows the transformation into a Linear Fractional Representation (LFR) of least possible order. A gab metric constraint is included during the optimization in order to guarantee a specified accuracy of the tarnsfer function of the linear parametric model. The effectiveness of the proposed method is demonstrated by a robust stability analysis for a nonlinear generic missile model.
| Item URL in elib: | https://elib.dlr.de/55580/ | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Document Type: | Conference or Workshop Item (Speech, Paper) | |||||||||
| Title: | Generation of Optimal Linear Parametric Models for LFT-based Robust Stability Analysis and Control Design | |||||||||
| Authors: |
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| Date: | 2008 | |||||||||
| Journal or Publication Title: | Proceedings | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Status: | Submitted | |||||||||
| Keywords: | LFT, LFR, optimisation | |||||||||
| Event Title: | IEEE Conference on Decision and Control | |||||||||
| Event Location: | Cancun, Mexico | |||||||||
| Event Type: | international Conference | |||||||||
| Event Dates: | 2008-12 | |||||||||
| Organizer: | IEEE | |||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||
| HGF - Program: | Aeronautics | |||||||||
| HGF - Program Themes: | Aircraft Research (old) | |||||||||
| DLR - Research area: | Aeronautics | |||||||||
| DLR - Program: | L AR - Aircraft Research | |||||||||
| DLR - Research theme (Project): | L - Systems & Cabin (old) | |||||||||
| Location: | Oberpfaffenhofen | |||||||||
| Institutes and Institutions: | Institute of Robotics and Mechatronics (until 2012) > System Dynamics and Control (former Control Design Engineering) | |||||||||
| Deposited By: | Klauer, Monika | |||||||||
| Deposited On: | 30 Oct 2008 | |||||||||
| Last Modified: | 12 Dec 2013 20:33 |
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