- •LIBRARY OF CONGRESS CATALOGING-IN-PUBLICATION DATA
- •CONTENTS
- •FOREWORD
- •PREFACE
- •Abstract
- •1. Introduction
- •2. A Nice Equation for an Heuristic Power
- •3. SWOT Method, Non Integer Diff-Integral and Co-Dimension
- •4. The Generalization of the Exponential Concept
- •5. Diffusion Under Field
- •6. Riemann Zeta Function and Non-Integer Differentiation
- •7. Auto Organization and Emergence
- •Conclusion
- •Acknowledgment
- •References
- •Abstract
- •1. Introduction
- •2. Preliminaries
- •3. The Model
- •4. Numerical Simulations
- •5. Synchronization
- •6. Conclusion
- •Acknowledgments
- •References
- •Abstract
- •1. Introduction: A Short Literature Review
- •2. The Injection System
- •3. The Control Strategy: Switching of Fractional Order Controllers by Gain Scheduling
- •4. Fractional Order Control Design
- •5. Simulation Results
- •6. Conclusion
- •Acknowledgment
- •References
- •Abstract
- •Introduction
- •1. Basic Definitions and Preliminaries
- •Conclusion
- •Acknowledgments
- •References
- •Abstract
- •1. Context and Problematic
- •2. Parameters and Definitions
- •3. Semi-Infinite Plane
- •4. Responses in the Semi-Infinite Plane
- •5. Finite Plane
- •6. Responses in Finite Plane
- •7. Simulink Responses
- •Conclusion
- •References
- •Abstract
- •1. Introduction
- •2. Modelling
- •3. Temperature Control
- •4. Conclusion
- •References
- •Abstract
- •1. Introduction
- •2. Preliminaries
- •3. Second Order Sliding Mode Control Strategy
- •4. Adaptation Law Synthesis
- •5. Numerical Studies
- •Conclusion
- •References
- •Abstract
- •1. Introduction
- •2. Rabotnov’s Fractional Operators and Main Formulas of Algebra of Fractional Operators
- •4. Calculation of the Main Viscoelastic Operators
- •5. Relationship of Rabotnov Fractional Operators with Other Fractional Operators
- •8. Application of Rabotnov’s Operators in Problems of Impact Response of Thin Structures
- •9. Conclusion
- •Acknowledgments
- •References
- •Abstract
- •1. Introduction
- •3. Theory of Diffusive Stresses
- •4. Diffusive Stresses
- •5. Conclusion
- •References
- •Abstract
- •Introduction
- •Methods
- •Conclusion
- •Acknowledgment
- •Abstract
- •1. Introduction
- •2. Basics of Fractional PID Controllers
- •3. Tuning Methodology for Fuzzy Fractional PID Controllers
- •4. Optimal Fuzzy Fractional PID Controllers
- •5. Conclusion
- •References
- •INDEX
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4. Conclusion
In this chapter we have studied the design of the temperature control of a diffusive medium by using an unique robust controller for three different materials, namely: aluminum, copper and iron. For the control-system design, the aluminum has been selected as the material defining the nominal model. Then, the second generation CRONE control has been chosen because the parametric uncertainty (due to the copper and the iron) leads to variations of open-loop gain. Finally, the responses in frequency-domain and in time-domain have illustrated the influence of the position of the sensor versus the actuator on the stability degree robustness.
As a future work, three tracks will be studied during the design of robust control:
the first will be to take into account the uncertainties associated with the sensor position xcapt;
the second will be to estimate the temperature T(0,t) from the measurement of the temperature T(xcapt,t);
the third will be to combine the first two.
References
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[Abi Zeid Daou, 2011.a] Abi Zeid Daou R., Moreau X. and Francis C. – Effect of hydropneumatic components nonlinearities on the CRONE suspension – IEEE Transactions on Vehicular Technology, Vol. 61, N°2, pp. 466-474, 2011.
[Abi Zeid Daou, 2011.b] Abi Zeid Daou R., Moreau X. and Francis C. – Control of hydroelectromechanical system using the generalized PID and the CRONE controllers - 18th World Congress of the International Federation of Automatic Control (IFAC), Milano, Italy, August 18 – September 2, 2011.
[Abi Zeid Daou, 2012] Abi Zeid Daou R., Moreau X., Assaf R. and Christophy F. - Analysis of the Fractional Order System in the thermal diffusive interface – Part 1: application to a semi-infinite plane medium – 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA), December 2012, Lebanon.
[Agrawal, 2004] Agrawal O.M.P. – Application of Fractional Derivatives in Thermal Analysis of Disk Brakes – Journal of Nonlinear Dynamics, Vol. 38, pp. 191-206, 2004, Kluwer Academic Publishers.
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In: Fractional Calculus: Applications |
ISBN: 978-1-63463-221-8 |
Editors: Roy Abi Zeid Daou and Xavier Moreau |
© 2015 Nova Science Publishers, Inc. |
Chapter 7
ADAPTIVE SECOND-ORDER FRACTIONAL
SLIDING MODE CONTROL WITH APPLICATION
TO WATER TANKS LEVEL CONTROL
Danial Senejohnny1, , Mohammadreza Faieghi2,†
and Hadi Delavari 3,‡
1School of Electrical Engineering,
Sharif University of Technology, Tehran, Iran
2School of Electrical Engineering, Iran University of Science
and Technology, Tehran, Iran
3Faculty of Electrical Engineering, Hamedan University
of Technology, Hamedan, Iran
Abstract
Combining the fractional calculus with second-order sliding mode control, a novel type of control strategy called second order fractional sliding mode control is introduced for a class of nonlinear dynamical systems subject to uncertainty. A fractional-order switching manifold is proposed and the corresponding control law is formulated based on the Lyapunov stability theory to guarantee the sliding condition. A novel adaptation algorithm is derived to ensure perfect tracking, diminish chattering effect and steady state error by estimating switching controller parameters. Finally, numerical simulation results utilizing the dynamic model of interconnected twin tank system are presented to illustrate the effectiveness of the proposed method.
E-mail address: d.senejohnny@gmail.com (Corresponding author).
† E-mail address: mfaieghi@gmail.com.
‡ E-mail address: hdelavary@gmail.com.
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