文章基本信息

标题：Robust High-Gain Observers Based Liquid Levels and Leakage Flow Rate Estimation
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作者：Feten Smida ; Salim Hadj Saïd ; Faouzi M’sahli 等
期刊名称：Journal of Control Science and Engineering
印刷版ISSN：1687-5249
电子版ISSN：1687-5257
出版年度：2018
卷号：2018
DOI：10.1155/2018/8793284
出版社：Hindawi Publishing Corporation
摘要：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.