Kurniawan, Wijaya and Hangos, Katalin and Marton, L (2022) Parameter fault estimation in distributed heating/cooling systems. In: Proceedings of 7th International Conference on Sustainable Information Engineering and Technology, SIET 2022. ACM, New York, pp. 111-118. ISBN 9781450397117 10.1145/3568231.3568256

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Abstract

In this paper, the problem of fault estimation and localization in the connecting dynamic elements of distributed heating and cooling systems are treated. The fault represents the physical parameter change related to the heat transfer between the system and the external environment. First, based on the bi-linear dynamic state space model of the system in the presence of a fault, structural observability analysis using Signed Directed Graph (SDG) has been performed to investigate the sensor placement problem. Then, a nonlinear observer with a parameter adaptation algorithm was proposed for fault estimation. The simulation results show that it can successfully detect and estimate the fault. Fault localization along the length of the element has also been attempted, but it has been found that the localization cannot be performed using practically changeable input variables. Frequency domain analysis is presented to discuss this phenomenon.

Item Type:	Book Section
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:	27 Jan 2023 07:50
Last Modified:	11 Sep 2023 15:01
URI:	https://eprints.sztaki.hu/id/eprint/10489

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