Unknown Input Observer for Temperature Profile Estimation in Systems with Unknown Heat Fluxes

This article demonstrates the application of a recently proposed sliding mode observer concept for linear time-invariant multivariable systems with unknown inputs. In contrast to other sliding mode approaches, this observer concept does neither unnecessarily increase the observer order beyond the pl...

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Bibliographic Details
Published in2024 European Control Conference (ECC) pp. 2553 - 2559
Main Authors Niederwieser, Helmut, Koch, Stefan, Reichhartinger, Markus
Format Conference Proceeding
LanguageEnglish
Published EUCA 25.06.2024
Subjects
Accuracy
Aluminum
Design methodology
Estimation
Europe
Heating systems
Linear systems
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Summary:This article demonstrates the application of a recently proposed sliding mode observer concept for linear time-invariant multivariable systems with unknown inputs. In contrast to other sliding mode approaches, this observer concept does neither unnecessarily increase the observer order beyond the plant order nor requires bounded state variables or some restrictive relative degree conditions. This work aims for estimating the temperature profile along an aluminium rod, which is excited with heat fluxes unknown to the observer. The plant model is transformed into a suitable form for observer design, facilitating a straightforward sliding mode observer design. Experimentally obtained estimation results confirm the effectiveness of the observer in a practical application.
DOI:10.23919/ECC64448.2024.10590846