Alinaghi Hosseinabadi, Pooyan and Soltani Sharif Abadi, Ali and Mekhilef, Saad and Pota, Hemanshu Roy (2021) Fixed-time adaptive robust synchronization with a state observer of chaotic support structures for offshore wind turbines. Journal of Control Automation and Electrical Systems, 32 (4). pp. 942-955. ISSN 2195-3880, DOI https://doi.org/10.1007/s40313-021-00707-y.
Full text not available from this repository.Abstract
The chaotic support structures for offshore wind turbines are often subjected to a severe environment. A robust control scheme needs to be considered to maintain them in a safe operational limit. Robust sliding mode control (SMC) scheme can provide an excellent robust controller against this severe and challenging environment for these chaotic structures. This paper proposes a novel fixed-time adaptive sliding mode control scheme with a state observer to synchronize chaotic support structures for offshore wind turbines in the presence of matched parametric uncertainties. The proposed controller is a new integration of adaptive control concept, SMC method, fixed-time stability concept and a state observer. A fixed-time stability concept is used to provide stability for the system within a presented time regardless of initial conditions. The adaptive concept is utilized to provide an online estimator of the uncertain upper bound. Also, a nonlinear observer is employed to provide an online estimator of an unmeasured state in the controller. Lyapunov stability theorem is used to analyze fixed-time stability of the system based on SMC methodology. The simulation results demonstrate that the proposed controller is able to ensure fixed-time synchronization along with providing precise means to estimate the unmeasured state as well as uncertainty upper bound.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia[LRGS/1/2019/UKM-UM/01/6/3] |
| Uncontrolled Keywords: | Sliding mode;Fixed-time;Chaotic;Observer;Adaptive;Synchronization |
| Subjects: | T Technology > T Technology (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 28 May 2022 01:45 |
| Last Modified: | 28 May 2022 01:45 |
| URI: | http://eprints.um.edu.my/id/eprint/34943 |
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