Results 271 to 280 of about 10,624 (307)

On the design of Walcott-Zak sliding mode observer

Proceedings of the 2005, American Control Conference, 2005., 2005
This paper explores the design of Walcott-Zak sliding mode observer (WZSMO) for a class of system satisfying some positive real conditions. A new sufficient and necessary existence condition only involving the original system parameters is proposed to simplify the design of WZSMO. The full freedom degree of the design of nonlinear injection of WZSMO is
Ji Xiang, Hongye Su, Jian Chu
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Fault Reconstruction Based on Sliding Mode Observers

2009 WRI World Congress on Computer Science and Information Engineering, 2009
For the momentum wheel control system of satellite, a method to design sliding mode observers for reconstructing actuator fault is presented. It uses the equivalent output injection concept to explicitly reconstruct fault signals, and uses concept to design the sliding motion so that the effect of the uncertainty on the reconstruction of the faults ...
Jiahui Luan, Laifa Tao, Chen Lu 0001
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Sliding mode observers for a class of nonlinear systems

Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002
The stability of a nonlinear observer for systems with uncertainties usually requires some sufficient conditions. In this paper we consider a class of systems with two uncertain parts: one which satisfies the Lipschitz condition, whilst the other does not satisfy the Lipschitz condition but is a bounded uncertainty.
Ali J. Koshkouei, Alan Solon Ivor Zinober   +1 more
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An LMI approach for designing sliding mode observers

International Journal of Control, 2001
Presents a method to design sliding mode observers for a class of uncertain systems using linear matrix inequalities. The objective is to exploit the degrees of freedom available in the design which have hitherto been ignored because of the lack of a tractable solution framework.
Tan, CP, Edwards, C
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Analysis of precision and design of sliding mode observers

2009 IEEE Control Applications, (CCA) & Intelligent Control, (ISIC), 2009
Nominal precision of state observation and bandwidth of sliding mode (SM) observers are analyzed through the frequency-domain method. The previously developed approach to analysis of SM observers as relay feedback-feedforward systems is used and further extended to analysis of effects of design parameter change on observer performance. An example of SM
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On a sliding mode control and observer of induction motor

SMC'03 Conference Proceedings. 2003 IEEE International Conference on Systems, Man and Cybernetics. Conference Theme - System Security and Assurance (Cat. No.03CH37483), 2004
The aim of this paper is to develop a general class of manifolds on which sliding mode flux observation and control of induction motors. For flux-speed tracking, we consider the case where the sliding surface is formed by the derivative of the output tracking error and a function of this error.
Mohamed Tadjine, Hachemi Chekireb, Mohamed Djemai   +2 more
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Adaptive sliding mode current control with sliding mode disturbance observer for PMSM drives

ISA Transactions, 2019
This paper focuses on the current control of a permanent magnet synchronous motor (PMSM) for electric drives with model uncertainties and external disturbances. To improve the performance of the PMSM current loop in terms of the speed of response, tracking accuracy, and robustness, a hybrid control strategy is proposed by combining the adaptive sliding
Yongting, Deng, Jianli, Wang, Hongwen, Li, Jing, Liu, Dapeng, Tian   +4 more
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Sliding mode state observation for non-linear systems

International Journal of Control, 2004
In this paper a class of non-linear systems with uncertainty and a Lipschitz part is considered. The non-linear part satisfies the Lipschitz condition, whilst the uncertain part is a bounded function. A sliding mode observer is designed to yield feedforward compensation input to stabilize the error estimation system with and without a Lipschitz non ...
Koshkouei, A.J., Zinober, A.
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Adaptive sliding mode control with sliding mode observer for a microelectromechanical vibratory gyroscope

Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 2008
This paper presents a novel adaptive sliding mode control with a sliding mode observer for a microelectromechanical system (MEMS) gyroscope. The proposed adaptive sliding mode controller with a sliding mode observer can estimate the unmeasured velocities, angular velocity, and damping and stiffness coefficients of the gyroscope in the presence of ...
J Fei, C Batur
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Sliding Mode Control of Robot Manipulators Based on Sliding Mode Perturbation Observation

Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 2006
This paper presents a sliding mode controller based on a sliding mode perturbation observer (SMPO) for the tracking control of robot manipulators. The SMPO is designed to estimate unmeasurable states and system perturbations that involve system non-linearities, disturbances, and unmodelled dynamics.
Y. N. Fei, J. S. Smith, Q. H. Wu
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