Results 231 to 240 of about 5,377 (266)

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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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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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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Sliding mode observer based sliding mode controller for interacting nonlinear system

Second International Conference on Current Trends In Engineering and Technology - ICCTET 2014, 2014
This paper presents a comparison study of performances and characteristics of two types of state observer based state feedback control schemes, including Sliding Mode Observer (SMO) based Sliding Mode Controller (SMC) scheme and Luenberger observer (LO) based Sliding Mode Control scheme. The effectiveness of the schemes are simulated and implemented on
M. Venkatesan, V. R. Ravi
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Sliding mode observers for automotive applications

Proceeding of the 1996 IEEE International Conference on Control Applications IEEE International Conference on Control Applications held together with IEEE International Symposium on Intelligent Control IEEE International Symposium on Computer-Aided Contro, 2002
In this paper observers based on sliding modes are designed for the use with nontraditional control algorithms for an automotive alternator with a rectifier. The innovative control algorithms of the rectifier require measurements of the alternator's EMF (electromotive force), which is not accessible directly.
S. Drakunov, V. Utkin, S. Zarei, J. Miller   +3 more
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On the Development and Application of Sliding Mode Observers

2007
This chapter will provide a perspective on the development of sliding mode observers for continuous time systems — primarily those which can be well represented as linear systems subject to bounded nonlinearities/uncertainties. This encompasses a wide range of real engineering systems.
Edwards, Christopher, Spurgeon, Sarah K., Tan, Chee Pin   +2 more
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Sliding mode observers for automotive alternators

Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251), 1999
This paper presents the methods for estimating automotive alternator's back electromotive forces without a direct mechanical sensor of the rotor position. It is shown that the back electromotive forces may be observed based on system's phase current model by sensing electrical variables of the synchronous rectifier.
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