State estimation and decoupling of unknown inputs in uncertain LPV systems using interval observers
This paper proposes a linear parameter varying (LPV) interval observer for state estimation and unknown inputs decoupling in uncertain continuous-time LPV systems. Two different problems are considered and solved: (1) the evaluation of the set of admissible values for the state at each instant of ti...
| Autores: | ; ; ; ; |
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| Tipo de documento: | Artigo |
| Data de publicação: | 2017 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositório: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | Inglês |
| OAI Identifier: | oai:upcommons.upc.edu:2117/114115 |
| Acesso em linha: | https://hdl.handle.net/2117/114115 https://dx.doi.org/10.1080/00207179.2017.1335882 |
| Nível de acesso: | Acesso aberto |
| Palavra-chave: | Error-correcting codes (Information theory) Automatic control Unknown input observers linear parameter varying (LPV) systems fault detection and isolation uncertain systems interval observers Codis correctors d'errors (Teoria de la informació) Control automàtic Àrees temàtiques de la UPC::Informàtica::Automàtica i control |
| Resumo: | This paper proposes a linear parameter varying (LPV) interval observer for state estimation and unknown inputs decoupling in uncertain continuous-time LPV systems. Two different problems are considered and solved: (1) the evaluation of the set of admissible values for the state at each instant of time; and (2) the unknown input observation, i.e. the design of the observer in such a way that some information about the nature of the unknown inputs affecting the system can be obtained. In both cases, analysis and design conditions, which rely on solving linear matrix inequalities (LMIs), are provided. The effectiveness and appeal of the proposed method is demonstrated using an illustrative application to a two-joint planar robotic manipulator. |
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