1. Disturbance Observer-Based Adaptive Fuzzy Control for Strict-Feedback Nonlinear Systems With Finite-Time Prescribed Performance
- Author
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Huijun Gao, Jianbin Qiu, Tong Wang, Imre J. Rudas, and Kangkang Sun
- Subjects
Disturbance (geology) ,Bounded set ,Computer science ,Applied Mathematics ,02 engineering and technology ,Fuzzy control system ,Fuzzy logic ,Tracking error ,Nonlinear system ,Computational Theory and Mathematics ,Artificial Intelligence ,Control and Systems Engineering ,Control theory ,Disturbance observer ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Finite time ,Elektrotechnik - Abstract
This paper studies the disturbance observer-based adaptive fuzzy finite-time control issue of strict-feedback nonlinear systems. Specifically, to meet practical application requirement, the finite-time prescribed performance is considered, which can guarantee the tracking error enters into the prescribed bounded set in a known time. A disturbance observer is proposed to estimate the external disturbance. It is proved that the closed-loop system is semi-globally practically finite-time stable. Finally, simulation studies for a one-link manipulator are shown to verify the effectiveness of the proposed approach.
- Published
- 2022