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Languages : en
Pages : 0
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Book Description
The research was concentrated on developing an advanced theory of stability and performance analysis of nonlinear dynamical systems. The ultimate goal is to provide algorithms and software for analytical validation of flight control algorithms involving gain scheduling, actuator saturation logical switching, etc., thus reducing the current dependence on extensive simulations in feedback control design. A number of new results were obtained. A study of dynamic behaviour of rate limiters allowed for the first time to develope methods of absolute stability analysis that are capable of discriminating between systems with quasiconcave nonlinearities (such as the saturation) and quasiconvex nonlinearities (such as the deadzone). A software package for rigorous analysis of stability and performance of nonlinear/time-varying/uncertain systems was developed based on the concept of Integral Quadratic Constraints. A new method of gain scheduling for linear feedback design under the condition of control saturation has been developed, with guaranteed stability margins rigorously proven. A unique technique for rigorous analysis of global and semiglobal stability of self-oscillations in higher order relay feedback systems has been developed.
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Languages : en
Pages : 0
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Book Description
The research was concentrated on developing an advanced theory of stability and performance analysis of nonlinear dynamical systems. The ultimate goal is to provide algorithms and software for analytical validation of flight control algorithms involving gain scheduling, actuator saturation logical switching, etc., thus reducing the current dependence on extensive simulations in feedback control design. A number of new results were obtained. A study of dynamic behaviour of rate limiters allowed for the first time to develope methods of absolute stability analysis that are capable of discriminating between systems with quasiconcave nonlinearities (such as the saturation) and quasiconvex nonlinearities (such as the deadzone). A software package for rigorous analysis of stability and performance of nonlinear/time-varying/uncertain systems was developed based on the concept of Integral Quadratic Constraints. A new method of gain scheduling for linear feedback design under the condition of control saturation has been developed, with guaranteed stability margins rigorously proven. A unique technique for rigorous analysis of global and semiglobal stability of self-oscillations in higher order relay feedback systems has been developed.
Author: Richard Dean Colgren
Publisher: AIAA (American Institute of Aeronautics & Astronautics)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 200
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Book Description
This book offers a three-step approach to generating a robust nonlinear controller: modeling, synthesis, and robustness analysis. The publication is targeted to practicing engineers and graduate-level students working in guidance, information command and control systems, and CAD/CAM. The methods covered in this book allow the user to design and analyze nonlinear controllers for nonlinear systems with several important and unique characteristics: the ability to specify the closed loop systems frequency response via requirements on the sensitivity (S) and complementary sensitivity (T), the ability to directly minimize an undesirable resonance or peak in the frequency response while simultaneously closing all loops from the input to the output vector in essentially one single design step, and the ability to analyze the stability characteristics for multiple independent and dependent problem variables. The approach uniquely allows the user to achieve stable and robust performance for systems which are both unstable and contain discontinuous nonlinearities using adaptive nonlinear controllers.
Author: Alberto Isidori
Publisher: Springer Science & Business Media
ISBN: 1447105494
Category : Technology & Engineering
Languages : en
Pages : 300
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Book Description
This eagerly awaited follow-up to Nonlinear Control Systems incorporates recent advances in the design of feedback laws, for the purpose of globally stabilizing nonlinear systems via state or output feedback. The author is one of the most prominent researchers in the field.
Author: Abeer Al-Gburi
Publisher:
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Category :
Languages : en
Pages : 0
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Author: Alberto Isidori
Publisher: Springer Science & Business Media
ISBN: 1846286158
Category : Technology & Engineering
Languages : en
Pages : 557
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The purpose of this book is to present a self-contained description of the fun damentals of the theory of nonlinear control systems, with special emphasis on the differential geometric approach. The book is intended as a graduate text as weil as a reference to scientists and engineers involved in the analysis and design of feedback systems. The first version of this book was written in 1983, while I was teach ing at the Department of Systems Science and Mathematics at Washington University in St. Louis. This new edition integrates my subsequent teaching experience gained at the University of Illinois in Urbana-Champaign in 1987, at the Carl-Cranz Gesellschaft in Oberpfaffenhofen in 1987, at the University of California in Berkeley in 1988. In addition to a major rearrangement of the last two Chapters of the first version, this new edition incorporates two additional Chapters at a more elementary level and an exposition of some relevant research findings which have occurred since 1985.
Author: Jun Shen
Publisher: Springer
ISBN: 9811038805
Category : Technology & Engineering
Languages : en
Pages : 136
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Book Description
This thesis develops several systematic and unified approaches for analyzing dynamic systems with positive characteristics or a more general cone invariance property. Based on these analysis results, it uses linear programming tools to address static output feedback synthesis problems with a focus on optimal gain performances. Owing to their low computational complexity, the established controller design algorithms are applicable for large-scale systems. The theory and control strategies developed will not only be useful in handling large-scale positive delay systems with improved solvability and at lower cost, but also further our understanding of the system characteristics in other related areas, such as distributed coordination of networked multi-agent systems, formation control of multiple robots.
Author: Nayeem Uddin Ahmed
Publisher:
ISBN:
Category :
Languages : en
Pages : 290
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Author: Nasir Uddin Ahmed
Publisher:
ISBN:
Category : Nonlinear theories
Languages : en
Pages : 290
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Book Description
Author: J. Karl Hedrick
Publisher:
ISBN:
Category : Control theory
Languages : en
Pages : 160
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Book Description
Author: Stanford University. Stanford Electronics Laboratories
Publisher:
ISBN:
Category :
Languages : en
Pages : 170
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Book Description
