Simultaneous interval estimation of actuator fault and state for a class of nonlinear systems by zonotope analysis
In this paper, an actuator fault and state interval estimation method for a class of nonlinear systems is proposed by integrating observer design and zonotope analysis. For the considered systems, we present a novel unknown input observer structure with broad applications. The design procedure is ba...
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2024 |
| 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:2117/427545 |
| Acesso em linha: | https://hdl.handle.net/2117/427545 https://dx.doi.org/10.1016/j.jprocont.2024.103303 |
| Access Level: | Acesso embargado |
| Palavra-chave: | Interval estimation Fault estimation Nonlinear systems Zonotope analysis Observer design. Àrees temàtiques de la UPC::Informàtica::Automàtica i control |
| Resumo: | In this paper, an actuator fault and state interval estimation method for a class of nonlinear systems is proposed by integrating observer design and zonotope analysis. For the considered systems, we present a novel unknown input observer structure with broad applications. The design procedure is based on H method to decrease the influence of unknown but bounded process disturbances and measurement noise. Moreover, a novel interval estimation method is presented based on zonotope analysis to obtain tighter intervals. Numerical simulations of a quadruple-tank system are conducted to assess the performance of the proposed approach. |
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