期刊
IET CONTROL THEORY AND APPLICATIONS
卷 13, 期 2, 页码 171-182出版社
WILEY
DOI: 10.1049/iet-cta.2018.5403
关键词
observers; control system synthesis; nonlinear control systems; Lyapunov methods; control nonlinearities; neurocontrollers; closed loop systems; uncertain systems; feedback; adaptive control; actuators; event-triggered neural control; actuator failures; adaptive event-triggered control problem; event-triggered mechanism; neural networks; approximate unknown nonlinear functions; neural observer; neural tracking controller; nonlinear nonstrict-feedback systems; measurement errors; unknown state variables estimation; backstepping technique; closed-loop signals
资金
- National Natural Science Foundation of China [61673072, 61703051, 61751202]
- Guangdong Natural Science Funds for Distinguished Young Scholar [2017A030306014]
- Department of Education of Guangdong Province [2016KTSCX030, 2017KZDXM027]
- Innovative Research Team Program of Guangdong Province Science Foundation [2018B030312006]
- Science and Technology Innovation Funds of Dalian [2018J11CY022]
- Department of Education of Liaoning Province [LZ2017001]
- PhD Start-up Fund of Liaoning Province [20170520124]
This study is concerned with an adaptive event-triggered control problem for non-linear non-strict-feedback systems subject to actuator failures. For actuator failures, both total loss of effectiveness (TLOE) and partial loss of effectiveness (PLOE) are considered. The event-triggered mechanism is proposed in this study, which may influence measurement errors. Neural networks (NNs) are used to approximate unknown non-linear functions, and a neural observer is designed to estimate unknown state variables. Then a neural tracking controller is constructed to reduce the communication burden via backstepping technique. The new controller ensures that the output of the system reaches to the same trajectory with the reference signal, and it also guarantees the boundedness of all the closed-loop signals. Finally, a simulation example is used to testify the results.
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