L1 adaptive control with sliding-mode based adaptive law

This paper presents an adaptive control scheme with an integration of sliding mode control into the L1 adaptive control architecture, which provides good tracking performance as well as robustness against matched uncertainties. Sliding mode control is used as an adaptive law in the L1 adaptive contr...

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Veröffentlicht in:Control theory and technology 2015-08, Vol.13 (3), p.221-229
Hauptverfasser: Luo, Jie, Cao, Chengyu
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description This paper presents an adaptive control scheme with an integration of sliding mode control into the L1 adaptive control architecture, which provides good tracking performance as well as robustness against matched uncertainties. Sliding mode control is used as an adaptive law in the L1 adaptive control architecture, which is considered as a virtual control of error dynamics between estimated states and real states. Low-pass filtering mechanism in the control law design prevents a discontinuous signal in the adaptive law from appearing in actual control signal while maintaining control accuracy. By using sliding mode control as a virtual control of error dynamics and introducing the low-pass filtered control signal, the chattering effect is eliminated. The performance bounds between the close-loop adaptive system and the closed-loop reference system are characterized in this paper. Numerical simulation is provided to demonstrate the performance of the presented adaptive control scheme.
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subjects Complexity
Computational Intelligence
Control
Control and Systems Theory
Engineering
Mechatronics
Optimization
Robotics
Systems Theory
低通滤波
控制方案
滑模控制
自适应律
自适应控制
自适应法
虚拟控制
跟踪性能
title L1 adaptive control with sliding-mode based adaptive law
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