Fault Detection, Isolation, and Accommodation for LTI Systems Based on GIMC Structure
In this contribution, an active fault-tolerant scheme that achieves fault detection, isolation, and accommodation is developed for LTI systems. Faults and perturbations are considered as additive signals that modify the state or output equations. The accommodation scheme is based on the generalized...
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | Journal of Control Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2008/853275 |
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| author | D. U. Campos-Delgado E. Palacios D. R. Espinoza-Trejo |
| author_facet | D. U. Campos-Delgado E. Palacios D. R. Espinoza-Trejo |
| author_sort | D. U. Campos-Delgado |
| collection | DOAJ |
| description | In this contribution, an active fault-tolerant scheme that achieves fault detection, isolation, and accommodation is developed for LTI systems. Faults and perturbations are considered as additive signals that modify the state or output equations. The accommodation scheme is based on the generalized internal model control architecture recently proposed for fault-tolerant control. In order to improve the performance after a fault, the compensation is considered in two steps according with a fault detection and isolation algorithm. After a fault scenario is detected, a general fault compensator is activated. Finally, once the fault is isolated, a specific compensator is introduced. In this setup, multiple faults could be treated simultaneously since their effect is additive. Design strategies for a nominal condition and under model uncertainty are presented in the paper. In addition, performance indices are also introduced to evaluate the resulting fault-tolerant scheme for detection, isolation, and accommodation. Hard thresholds are suggested for detection and isolation purposes, meanwhile, adaptive ones are considered under model uncertainty to reduce the conservativeness. A complete simulation evaluation is carried out for a DC motor setup. |
| format | Article |
| id | doaj-art-140182292e23411eb6a4726ccf8ca669 |
| institution | Kabale University |
| issn | 1687-5249 1687-5257 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Control Science and Engineering |
| spelling | doaj-art-140182292e23411eb6a4726ccf8ca6692025-02-03T05:47:12ZengWileyJournal of Control Science and Engineering1687-52491687-52572008-01-01200810.1155/2008/853275853275Fault Detection, Isolation, and Accommodation for LTI Systems Based on GIMC StructureD. U. Campos-Delgado0E. Palacios1D. R. Espinoza-Trejo2Facultad de Ciencias, Zona Universitaria, Universidad Autonoma de San Luis Potosí, San Luis Potosí, SLP 78290, MexicoFacultad de Ciencias, Zona Universitaria, Universidad Autonoma de San Luis Potosí, San Luis Potosí, SLP 78290, MexicoFacultad de Ingeniería, Universidad Autonoma de San Luis Potosí, Av. Dr. Manuel Nava 8, Zona Universitaria, SLP 78290 C.P., MexicoIn this contribution, an active fault-tolerant scheme that achieves fault detection, isolation, and accommodation is developed for LTI systems. Faults and perturbations are considered as additive signals that modify the state or output equations. The accommodation scheme is based on the generalized internal model control architecture recently proposed for fault-tolerant control. In order to improve the performance after a fault, the compensation is considered in two steps according with a fault detection and isolation algorithm. After a fault scenario is detected, a general fault compensator is activated. Finally, once the fault is isolated, a specific compensator is introduced. In this setup, multiple faults could be treated simultaneously since their effect is additive. Design strategies for a nominal condition and under model uncertainty are presented in the paper. In addition, performance indices are also introduced to evaluate the resulting fault-tolerant scheme for detection, isolation, and accommodation. Hard thresholds are suggested for detection and isolation purposes, meanwhile, adaptive ones are considered under model uncertainty to reduce the conservativeness. A complete simulation evaluation is carried out for a DC motor setup.http://dx.doi.org/10.1155/2008/853275 |
| spellingShingle | D. U. Campos-Delgado E. Palacios D. R. Espinoza-Trejo Fault Detection, Isolation, and Accommodation for LTI Systems Based on GIMC Structure Journal of Control Science and Engineering |
| title | Fault Detection, Isolation, and Accommodation for LTI Systems Based on GIMC Structure |
| title_full | Fault Detection, Isolation, and Accommodation for LTI Systems Based on GIMC Structure |
| title_fullStr | Fault Detection, Isolation, and Accommodation for LTI Systems Based on GIMC Structure |
| title_full_unstemmed | Fault Detection, Isolation, and Accommodation for LTI Systems Based on GIMC Structure |
| title_short | Fault Detection, Isolation, and Accommodation for LTI Systems Based on GIMC Structure |
| title_sort | fault detection isolation and accommodation for lti systems based on gimc structure |
| url | http://dx.doi.org/10.1155/2008/853275 |
| work_keys_str_mv | AT ducamposdelgado faultdetectionisolationandaccommodationforltisystemsbasedongimcstructure AT epalacios faultdetectionisolationandaccommodationforltisystemsbasedongimcstructure AT drespinozatrejo faultdetectionisolationandaccommodationforltisystemsbasedongimcstructure |