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A new separated fault estimator and fault-tolerant control design strategy for uncertain nonlinear systems using T-S fuzzy modeling | ||
| Iranian Journal of Fuzzy Systems | ||
| دوره 18، شماره 2، خرداد و تیر 2021، صفحه 127-138 اصل مقاله (3.36 MB) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22111/ijfs.2021.5919 | ||
| نویسنده | ||
| M. Cheraghiyan* | ||
| Department of Automation and Instrumentation Engineering, Petroleum University of Technology, Ahwaz, Iran | ||
| چکیده | ||
| In this paper, a new separated design of adaptive observer-based fault estimator (FE) and fault-tolerant control (FTC) is introduced for nonlinear systems along with sensor and actuator faults in the presence of external disturbance and parametric modeling uncertainty by T-S fuzzy modeling, which can easily challenge integrated design strategies. Firstly, a new fuzzy adaptive FE estimates actuator/sensor faults, and the system states simultaneously and also can automatically estimate and compensates bi-directional uncertainties between FE function and control system. Secondly, a fuzzy state feedback FTC controller is designed based on these estimations. Then the proposed separated FE/FTC design presented which is solved by linear matrix inequality via $H_\infty$ optimization. Finally, a tutorial example of an inverted pendulum on a cart demonstrates the validity and effectiveness of the proposed design. | ||
| کلیدواژه‌ها | ||
| Separated FE/FTC؛ T-S fuzzy modeling؛ fuzzy adaptive fault estimation | ||
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آمار تعداد مشاهده مقاله: 174 تعداد دریافت فایل اصل مقاله: 261 |
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