Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate Estimation

Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate Estimation

The paper aims to solve the problem of liquid level and leakage flow rate estimations for a state coupled four-tank process, that is why an UIO is developed to simultaneously estimate the unmeasured state variables and the perturbations considered as unknown inputs. We have proposed a state repartit...

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Main Authors: Feten Smida, Salim Hadj Saïd, Faouzi M’sahli
Format: Article
Language:English
Published: Hindawi Limited 2018-01-01
Series:Journal of Control Science and Engineering
Online Access:http://dx.doi.org/10.1155/2018/8793284
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spelling doaj-a44686ac5f0748f4bf4568ec5f885db42020-11-25T03:26:42ZengHindawi LimitedJournal of Control Science and Engineering1687-52491687-52572018-01-01201810.1155/2018/87932848793284Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate EstimationFeten Smida0Salim Hadj Saïd1Faouzi M’sahli2Department of Electrical Engineering, ENIM, Road Ibn Eljazzar, 5019 Monastir, TunisiaDepartment of Electrical Engineering, ENIM, Road Ibn Eljazzar, 5019 Monastir, TunisiaDepartment of Electrical Engineering, ENIM, Road Ibn Eljazzar, 5019 Monastir, TunisiaThe paper aims to solve the problem of liquid level and leakage flow rate estimations for a state coupled four-tank process, that is why an UIO is developed to simultaneously estimate the unmeasured state variables and the perturbations considered as unknown inputs. We have proposed a state repartition that allows putting the model of the quadruple tank system to the canonical form for which the design of the observer is more easier. The observation scheme that uses a combination of high-gain observers and sliding mode observers allows improving robustness in the state estimation quality and a perfect reconstruction of the disturbance waveforms.http://dx.doi.org/10.1155/2018/8793284
collection DOAJ
language English
format Article
sources DOAJ
author Feten Smida
Salim Hadj Saïd
Faouzi M’sahli
spellingShingle Feten Smida
Salim Hadj Saïd
Faouzi M’sahli
Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate Estimation
Journal of Control Science and Engineering
author_facet Feten Smida
Salim Hadj Saïd
Faouzi M’sahli
author_sort Feten Smida
title Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate Estimation
title_short Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate Estimation
title_full Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate Estimation
title_fullStr Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate Estimation
title_full_unstemmed Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate Estimation
title_sort robust high-gain observers based liquid levels and leakage flow rate estimation
publisher Hindawi Limited
series Journal of Control Science and Engineering
issn 1687-5249
1687-5257
publishDate 2018-01-01
description The paper aims to solve the problem of liquid level and leakage flow rate estimations for a state coupled four-tank process, that is why an UIO is developed to simultaneously estimate the unmeasured state variables and the perturbations considered as unknown inputs. We have proposed a state repartition that allows putting the model of the quadruple tank system to the canonical form for which the design of the observer is more easier. The observation scheme that uses a combination of high-gain observers and sliding mode observers allows improving robustness in the state estimation quality and a perfect reconstruction of the disturbance waveforms.
url http://dx.doi.org/10.1155/2018/8793284
work_keys_str_mv AT fetensmida robusthighgainobserversbasedliquidlevelsandleakageflowrateestimation
AT salimhadjsaid robusthighgainobserversbasedliquidlevelsandleakageflowrateestimation
AT faouzimsahli robusthighgainobserversbasedliquidlevelsandleakageflowrateestimation
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