High-gain observer with higher order sliding mode for state and unknown disturbance estimations
作者： Y. Zhou , Y.C. Soh , J.X. Shen
DOI: 10.1002/RNC.2982
关键词: Term (time) 、 Invariant (mathematics) 、 Mathematics 、 Lipschitz continuity 、 Robustness (computer science) 、 Nonlinear system 、 Mode (statistics) 、 State observer 、 Control theory 、 Sliding mode control
摘要: SUMMARY In this paper, we consider the estimation problem of a class single-input–single-output nonlinear Lipschitz systems with nonmatching uncertainty or disturbance, where distribution vector may include unknown states. A hybrid observer structure that combines high-gain feedback higher order sliding mode term is proposed. The works to constrain error within an invariant set, and will asymptotically track if system satisfies strict assumptions. Furthermore, mode, chattering effect be effectively attenuated without sacrificing robustness, can recovered filtering effect. Copyright © 2013 John Wiley & Sons, Ltd.
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