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Book
Stability and Performance of Control Systems with Actuator Saturation
Authors: ---
ISBN: 3319642464 3319642448 Year: 2018 Publisher: Cham : Springer International Publishing : Imprint: Birkhäuser,

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This monograph investigates the stability and performance of control systems subject to actuator saturation. It presents new results obtained by both improving the treatment of the saturation function and constructing new Lyapunov functions. In particular, two improved treatments of the saturation function are described that exploit the intricate structural properties of its traditional convex hull representation. The authors apply these treatments to the estimation of the domain of attraction and the finite-gain L2 performance by using the quadratic Lyapunov function and the composite quadratic Lyapunov function. Additionally, an algebraic computation method is given for the exact determination of the maximal contractively invariant ellipsoid, a level set of a quadratic Lyapunov function. The authors conclude with a look at some of the problems that can be solved by the methods developed and described throughout the book. Numerous step-by-step descriptions, examples, and simulations are provided to illustrate the effectiveness of their results. Stability and Performance of Control Systems with Actuator Saturation will be an invaluable reference for graduate students, researchers, and practitioners in control engineering and applied mathematics.


Book
Truncated predictor based feedback designs for linear systems with input delay
Authors: ---
ISBN: 3030534294 3030534286 Year: 2021 Publisher: Cham, Switzerland : Birkhauser,

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This monograph is the first of its kind to present innovative research results on truncated predictor feedback (TPF) designs for general linear systems with input delay. Beginning with a brief review of time delay systems, the first half of the book focuses on TPF with a constant feedback parameter. Both state feedback and output feedback are considered. It is established that TPF achieves stabilization in the presence of an arbitrarily large bounded delay if the open loop system is not exponentially unstable. Examples are presented to illustrate that TPF may fail to stabilize an exponentially unstable system when the delay is sufficiently large. Bounds on the delay are then established under which stabilization can be achieved. The second half of the book explores variations of the TPF laws designed with a non-constant feedback parameter to accommodate unknown delays and improve closed-loop performance. The authors employ a step-by-step approach to presenting the ultimate result on a completely delay-independent feedback law. Truncated Predictor Based Feedback Designs for Linear Systems with Input Delay will appeal to control engineers, control theorists, and graduate students studying control systems. This volume will also be a valuable resource for engineers and applied mathematicians interested in dynamic systems with time delays.


Digital
Stability and Performance of Control Systems with Actuator Saturation
Authors: ---
ISBN: 9783319642468 Year: 2018 Publisher: Cham Springer International Publishing, Imprint: Birkhäuser

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Abstract

This monograph investigates the stability and performance of control systems subject to actuator saturation. It presents new results obtained by both improving the treatment of the saturation function and constructing new Lyapunov functions.  In particular, two improved treatments of the saturation function are described that exploit the intricate structural properties of its traditional convex hull representation.  The authors apply these treatments to the estimation of the domain of attraction and the finite-gain L2 performance by using the quadratic Lyapunov function and the composite quadratic Lyapunov function. Additionally, an algebraic computation method is given for the exact determination of the maximal contractively invariant ellipsoid, a level set of a quadratic Lyapunov function. The authors conclude with a look at some of the problems that can be solved by the methods developed and described throughout the book. Numerous step-by-step descriptions, examples, and simulations are provided to illustrate the effectiveness of their results. Stability and Performance of Control Systems with Actuator Saturation will be an invaluable reference for graduate students, researchers, and practitioners in control engineering and applied mathematics.


Book
Truncated Predictor Based Feedback Designs for Linear Systems with Input Delay
Authors: --- ---
ISBN: 9783030534295 9783030534301 9783030534318 9783030534288 Year: 2021 Publisher: Cham Springer International Publishing :Imprint: Birkhäuser

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Book
Output feedback reinforcement learning control for linear systems
Authors: ---
ISBN: 303115858X 3031158571 Year: 2023 Publisher: Cham, Switzerland : Birkhäuser,


Multi
Truncated Predictor Based Feedback Designs for Linear Systems with Input Delay
Authors: --- ---
ISBN: 9783030534295 9783030534301 9783030534318 9783030534288 Year: 2021 Publisher: Cham Springer International Publishing :Imprint: Birkhäuser

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Abstract

This monograph is the first of its kind to present innovative research results on truncated predictor feedback (TPF) designs for general linear systems with input delay. Beginning with a brief review of time delay systems, the first half of the book focuses on TPF with a constant feedback parameter. Both state feedback and output feedback are considered. It is established that TPF achieves stabilization in the presence of an arbitrarily large bounded delay if the open loop system is not exponentially unstable. Examples are presented to illustrate that TPF may fail to stabilize an exponentially unstable system when the delay is sufficiently large. Bounds on the delay are then established under which stabilization can be achieved. The second half of the book explores variations of the TPF laws designed with a non-constant feedback parameter to accommodate unknown delays and improve closed-loop performance. The authors employ a step-by-step approach to presenting the ultimate result on a completely delay-independent feedback law. Truncated Predictor Based Feedback Designs for Linear Systems with Input Delay will appeal to control engineers, control theorists, and graduate students studying control systems. This volume will also be a valuable resource for engineers and applied mathematicians interested in dynamic systems with time delays.


Multi
Output Feedback Reinforcement Learning Control for Linear Systems
Authors: ---
ISBN: 9783031158582 9783031158575 9783031158599 9783031158605 Year: 2023 Publisher: Cham Springer International Publishing :Imprint: Birkhäuser

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This monograph explores the analysis and design of model-free optimal control systems based on reinforcement learning (RL) theory, presenting new methods that overcome recent challenges faced by RL. New developments in the design of sensor data efficient RL algorithms are demonstrated that not only reduce the requirement of sensors by means of output feedback, but also ensure optimality and stability guarantees. A variety of practical challenges are considered, including disturbance rejection, control constraints, and communication delays. Ideas from game theory are incorporated to solve output feedback disturbance rejection problems, and the concepts of low gain feedback control are employed to develop RL controllers that achieve global stability under control constraints. Output Feedback Reinforcement Learning Control for Linear Systems will be a valuable reference for graduate students, control theorists working on optimal control systems, engineers, and applied mathematicians.


Book
Control of surge in centrifugal compressors by active magnetic bearings : theory and implementation
Authors: --- ---
ISBN: 144714239X 9786613934598 1447142403 1283622149 Year: 2012 Publisher: London : Springer-Verlag,

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Control of Surge in Centrifugal Compressors by Active Magnetic Bearings sets out the fundamentals of integrating the active magnetic bearing (AMB) rotor suspension technology in compressor systems, and describes how this relatively new bearing technology can be employed in the active control of compressor surge. The authors provide a self-contained and comprehensive review of rotordynamics and the fundamentals of the AMB technology. The active stabilization of compressor surge employing AMBs in a machine is fully explored, from the modeling of the instability and the design of feedback controllers, to the implementation and experimental testing of the control algorithms in a specially-constructed, industrial-size centrifugal compression system. The results of these tests demonstrate the great potential of the new surge control method developed in this text. This book will be useful for engineers in industries that involve turbocompressors and magnetic bearings, as well as for researchers and graduate students in the field of applied control. Whatever their level of experience, engineers working in the fields of turbomachinery, magnetic bearings, rotordynamics and controls will find the material in this book absorbing as all these important aspects of engineering are integrated to create a multi-disciplinary solution to a real-life industrial problem. Newcomers to the above mentioned industrial fields will also find this book to be a suitable introduction to the basic concepts required for understanding the AMB technology, and its applications in the stabilization of compressor flow.   Advances in Industrial Control aims to report and encourage the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.

Keywords

Compressors -- Dynamics. --- Engineering. --- Magnetic bearings. --- Compressors --- Magnetic bearings --- Mechanical Engineering --- Engineering & Applied Sciences --- Mechanical Engineering - General --- Dynamics --- Automatic control. --- Control engineering --- Control equipment --- Fossil fuels. --- Energy storage. --- Aerospace engineering. --- Astronautics. --- Control engineering. --- Manufacturing industries. --- Machines. --- Tools. --- Building construction. --- Control. --- Aerospace Technology and Astronautics. --- Energy Storage. --- Manufacturing, Machines, Tools. --- Building Physics, HVAC. --- Fossil Fuels (incl. Carbon Capture). --- Hand tools --- Handtools --- Hardware --- Implements, utensils, etc. --- Machinery --- Machines --- Manufactures --- Power (Mechanics) --- Technology --- Mechanical engineering --- Motors --- Power transmission --- Industries --- Control theory --- Engineering instruments --- Automation --- Programmable controllers --- Space sciences --- Aeronautics --- Astrodynamics --- Space flight --- Space vehicles --- Aeronautical engineering --- Astronautics --- Engineering --- Storage of energy --- Force and energy --- Flywheels --- Pulsed power systems --- Fossil energy --- Fuel --- Energy minerals --- Construction --- Industrial arts --- Curious devices --- Bearings (Machinery) --- Manufactures. --- Control and Systems Theory. --- Manufacturing, Machines, Tools, Processes. --- Manufactured goods --- Manufactured products --- Products --- Products, Manufactured --- Commercial products --- Manufacturing industries


Digital
Control of Surge in Centrifugal Compressors by Active Magnetic Bearings : Theory and Implementation
Authors: --- ---
ISBN: 9781447142409 Year: 2013 Publisher: London Springer

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Abstract

Control of Surge in Centrifugal Compressors by Active Magnetic Bearings sets out the fundamentals of integrating the active magnetic bearing (AMB) rotor suspension technology in compressor systems, and describes how this relatively new bearing technology can be employed in the active control of compressor surge. The authors provide a self-contained and comprehensive review of rotordynamics and the fundamentals of the AMB technology. The active stabilization of compressor surge employing AMBs in a machine is fully explored, from the modeling of the instability and the design of feedback controllers, to the implementation and experimental testing of the control algorithms in a specially-constructed, industrial-size centrifugal compression system. The results of these tests demonstrate the great potential of the new surge control method developed in this text. This book will be useful for engineers in industries that involve turbocompressors and magnetic bearings, as well as for researchers and graduate students in the field of applied control. Whatever their level of experience, engineers working in the fields of turbomachinery, magnetic bearings, rotordynamics and controls will find the material in this book absorbing as all these important aspects of engineering are integrated to create a multi-disciplinary solution to a real-life industrial problem. Newcomers to the above mentioned industrial fields will also find this book to be a suitable introduction to the basic concepts required for understanding the AMB technology, and its applications in the stabilization of compressor flow.   Advances in Industrial Control aims to report and encourage the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.

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