期刊
INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING
卷 34, 期 4, 页码 543-559出版社
WILEY
DOI: 10.1002/acs.3098
关键词
barrier Lyapunov function (BLF); fuzzy adaptive control; input saturation; output constraint; two-bits-triggered control
资金
- National Natural Science Foundation (NNSF) of China [51775122, 51505092]
- Innovative Talents Project of Guangdong Education Department [2018KQNCX197]
- Science Technology Planning Project of Guangdong [2016B090912007]
In this work, a fuzzy adaptive two-bits-triggered control is investigated for the nonlinear uncertain systems with input saturation and output constraint. The considered systems are more widespread. Without sufficient transmission resources, how to resolve the constraint issues while guarantee the control performance is difficult and challenging. Then, hyperbolic tangent function and barrier Lyapunov function are integrated with the designed auxiliary system to solve input saturation and output constraint. Meanwhile, faced with the transmission resources limitation, this work both considers the triggering condition and the control signal transmission bits. A two-bits-triggered control is proposed to economize the transmission resources. Furthermore, improved fuzzy logic systems are established to further promote the control performance. It combines with the time-varying approximation error for processing. The boundedness of all the system signals can be proved. Simulation results illustrate the validity of the proposed approach.
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