A New Approach to Nonlinear State Observation for Affine Control Dynamical Systems
| Autor: | Ahmad Taher Azar, Drai Ahmed Smait, Sami Muhsen, Moayad Abdullah Jassim, Asaad Abdul Malik Madhloom AL-Salih, Ibrahim A. Hameed, Anwar Ja’afar Mohamad Jawad, Wameedh Riyadh Abdul-Adheem, Vincent Cocquempot, Mouayad A. Sahib, Nashwa Ahmad Kamal, Ibraheem Kasim Ibraheem |
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| Přispěvatelé: | Prince Sultan University [Riyad], Benha University (BU), Al-Mustaqbal University College, Norwegian University of Science and Technology (NTNU), Baghdad University, Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 (CRIStAL), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Dijlah University College, Benha University [BU], Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL] |
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
Fluid Flow and Transfer Processes
generalized disturbance Lyapunov method state estimator model uncertainty nonlinear systems active disturbance rejection control Process Chemistry and Technology General Engineering Computer Science Applications [SPI.AUTO]Engineering Sciences [physics]/Automatic [INFO.INFO-SY]Computer Science [cs]/Systems and Control [cs.SY] General Materials Science Instrumentation |
| Zdroj: | Applied Sciences Applied Sciences, 2023, 13 (5), pp.3300. ⟨10.3390/app13053300⟩ Applied Sciences; Volume 13; Issue 5; Pages: 3300 |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app13053300⟩ |
| Popis: | International audience; In this work, a Nonlinear Higher Order Extended State Observer (NHOESO) is presented to replace the Linear Extended State Observer (LESO) used in Conventional Active Disturbance Rejection Control (C-ADRC) solutions. In the NHOESO, the standard LESO is completed with a two-term smooth nonlinear function with saturation-like characteristics. The proposed novel NHOESO enables precise observation of the generalized disturbances with higher-order derivatives. The stability of the NHOESO is examined with the aid of the Lyapunov method. A simulation of an uncertain nonlinear Single-Input–Single-Output (SISO) system with time-varying external disturbances confirms that the proposed NHOESO copes well with the generalized disturbance, which is not true for other ESOs. |
| Databáze: | OpenAIRE |
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