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Sliding-mode observers for uncertain systems
2009 American Control Conference, 2009Sliding-mode observer design is considered for linear systems with unknown inputs when the so-called observer matching condition is not satisfied. To circumvent the restriction imposed by the observer matching condition, the method of utilizing auxiliary outputs generated by high-order sliding-mode exact differentiators in the sliding-mode observer ...
Karanjit Kalsi +3 more
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Sliding mode observer for fluid flow
2017 IEEE Conference on Control Technology and Applications (CCTA), 2017Many phenomena in science and engineering are described using partial differential equations. However, for the systems modeled by PDEs, having access to the states of the system can be challenging due to technical difficulties such as lacking enough sensors in the system. In this paper the problem of estimating the parameters of fluid flow described by
Niloofar N. Kamran, Sergey V. Drakunov
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Sliding mode observer for Switched Linear Systems
2011 IEEE International Conference on Automation Science and Engineering, 2011This work is concerned with the design of an observer for Switched Linear Systems (SLS) subject to an unknown switching signal. The convergence of the proposed SLS observer is proved, based on observability results for SLS, for the following two cases.
David Gómez-Gutiérrez +4 more
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2007
The focus of much of the research in the area of control systems theory during the seventies and eighties addressed the issue of robustness - i.e., designing controllers with the ability to maintain stability and performance in the presence of discrepancies between the plant and model.
Edwards, Christopher +3 more
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The focus of much of the research in the area of control systems theory during the seventies and eighties addressed the issue of robustness - i.e., designing controllers with the ability to maintain stability and performance in the presence of discrepancies between the plant and model.
Edwards, Christopher +3 more
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Sliding mode observer for nonlinear uncertain systems
IEEE Transactions on Automatic Control, 2001A smooth nonlinear uncertain control system is considered. It is assumed that the uncertainties are representable through unknown input terms of the system. Based on suitable assumptions, the original system is decomposed into two interconnected subsystems (one of these subsystems is free of uncertainties). A nonlinear sliding mode observer is proposed
Mehrdad Saif
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Sliding mode observers: a survey
International Journal of Systems Science, 2008Sliding mode observers have unique properties, in that the ability to generate a sliding motion on the error between the measured plant output and the output of the observer ensures that a sliding mode observer produces a set of state estimates that are precisely commensurate with the actual output of the plant. It is also the case that analysis of the
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Sliding mode observers. Tutorial
Proceedings of 1995 34th IEEE Conference on Decision and Control, 2002Discusses the problem of designing observers for state estimation using sliding modes. The theory and design principles are presented for linear and nonlinear systems. For linear systems the observers are developed using a block-observable form which is similar to a lower triangular matrix form. Compared with known approaches such observers have better
S. Drakunov, V. Utkin
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Sliding mode observers for vehicle mode detection
Vehicle System Dynamics, 2005This paper explores the use of sliding mode observers to detect the onset of potentially dangerous vehicle modes such as oversteer, understeer or split-μ braking. Provided these modes can be detected quickly enough, existing stability controllers can be engaged to ensure safe performance of the vehicle.
Edwards, C, Hebden, RG, Spurgeon, SK
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Fuzzy sliding mode controller design with fuzzy sliding mode observer
2000 26th Annual Conference of the IEEE Industrial Electronics Society. IECON 2000. 2000 IEEE International Conference on Industrial Electronics, Control and Instrumentation. 21st Century Technologies and Industrial Opportunities (Cat. No.00CH37141), 2002This paper addresses the design strategy of a decoupled fuzzy sliding mode controller and a fuzzy sliding mode observer on the basis of the Takagi-Sugeno's (T-S) fuzzy model. A class of fourth-order systems such as a cart-pole system could be well controlled and observed in both the pole hyperplane and the cart-hyperplane simultaneously by the proposed
null Chung-Chun Kung, null Jui-Yiao Su
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An adaptive sliding mode observer for induction machines
2008 American Control Conference, 2008Control of induction machines in the so-called sensorless paradigm forms an interesting academic and practical problem. In this paper, an observer-controller system is proposed that can be used to control an induction machine with unknown parameters and partial state variable information.
Sachit Rao, Martin Buss, Vadim Utkin
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