Set-membership parity space approach for fault detection in linear uncertain dynamic systems
In this paper, a set-membership parity space approach for linear uncertain dynamic systems is proposed. First, a set of parity relations derived from the parity space approach is obtained by means of a transformation derived from the system characteristic polynomial. As a result of this transformati...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/76223 |
| Acceso en línea: | https://hdl.handle.net/2117/76223 https://dx.doi.org/10.1002/acs.2476 |
| Access Level: | acceso abierto |
| Palabra clave: | Automatic control Linear systems Differential equations, Linear Fault location (Engineering) Keywords: fault detection set membership parity space parity equations zonotopes Control automàtic Sistemes lineals Equacions diferencials lineals Àrees temàtiques de la UPC::Informàtica |
| Sumario: | In this paper, a set-membership parity space approach for linear uncertain dynamic systems is proposed. First, a set of parity relations derived from the parity space approach is obtained by means of a transformation derived from the system characteristic polynomial. As a result of this transformation, parity relations can be expressed in regressor form. On the one hand, this facilitates the parameter estimation of those relations using a zonotopic set-membership algorithm. On the other hand, fault detection is then based on checking, at every sample time, the non-existence of a parameter value in the parameter uncertainty set such that the model is consistent with all the system measurements. The proposed approach is applied to two examples: a first illustrative case study based on a two-tank system and a more realistic case study based on the wind turbine fault detection and isolation benchmark in order to evaluate its effectiveness |
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