Parameter fault diagnosis in heat exchange networks with distributed time delay
Kurniawan, Wijaya and Hangos, Katalin and Márton, Lőrinc (2022) Parameter fault diagnosis in heat exchange networks with distributed time delay. IFAC PAPERSONLINE, 55 (18). pp. 39-44. ISSN 2405-8963 10.1016/j.ifacol.2022.08.027
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Abstract
This paper deals with parameter fault diagnosis in heat exchange networks (HENs) with joining and splitting connections where the change in the heat transfer coefficient is considered as fault. The fault diagnosis oriented model of the HEN elements was developed based on the equivalent LTI realization of distributed delay models. The Signed Directed Graph (SDG) method is used to derive the fault observability conditions. The presence of faults induces bi-linear fault-input terms into the system model. Thus, a nonlinear adaptive observer was proposed for fault diagnosis. To verify and validate the proposed method, a case study is presented. The simulation results show that the observers are successfully detecting and estimating the faults and unknown system states.
| Item Type: | Article |
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| Subjects: | Q Science > QA Mathematics and Computer Science > QA75 Electronic computers. Computer science / számítástechnika, számítógéptudomány |
| Divisions: | Systems and Control Lab |
| SWORD Depositor: | MTMT Injector |
| Depositing User: | MTMT Injector |
| Date Deposited: | 31 Jan 2023 06:42 |
| Last Modified: | 11 Sep 2023 15:00 |
| URI: | https://eprints.sztaki.hu/id/eprint/10498 |
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