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1. |
Record Nr. |
UNINA9910483948703321 |
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Autore |
Hernandez-Guzman Victor Manuel |
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Titolo |
Energy-based control of electromechanical systems : a novel passivity-based approach / / Victor Manuel Hernández-Guzmán, Ramón Silva-Ortigoza, Jorge Alberto Orrante-Sakanassi |
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Pubbl/distr/stampa |
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Cham, Switzerland : , : Springer, , [2021] |
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©2021 |
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ISBN |
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Edizione |
[1st edition 2021.] |
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Descrizione fisica |
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1 online resource (XX, 619 p. 225 illus., 50 illus. in color.) |
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Collana |
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Advances in Industrial Control, , 1430-9491 |
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Disciplina |
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Soggetti |
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Passivity-based control |
Electric motors - Automatic control |
Electromechanical devices - Mathematical models |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Introduction -- Mathematical Preliminaries -- Permanent Magnet Brushed DC-Motor -- Permanent Magnet Synchronous Motor -- Induction Motor -- Switched Reluctance Motor -- Synchronous Reluctance Motor -- Bipolar Permanent Magnet Stepper Motor -- Brushless DC-Motor -- Magnetic Levitation Systems and Microelectromechanical Systems -- Trajectory Tracking for Robot Manipulators Equipped With PM Synchronous Motors -- PID Control of Robot Manipulators Equipped with SRMs. |
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Sommario/riassunto |
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This book introduces a passivity-based approach which simplifies the controller design task for AC motors. It presents the application of this novel approach to several classes of AC motors, magnetic levitation systems, microelectromechanical systems (MEMS) and rigid robot manipulators actuated by AC-motors. The novel passivity-based approach exploits the fact that the natural energy exchange existing between the mechanical and the electrical subsystems allows the natural cancellation of several high order terms during the stability analysis. This allows the authors to present come of the simplest controllers proposed in scientific literature, but provided with formal stability proofs. These simple control laws will be of use to |
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practitioners as they are robust with respect to numerical errors and noise amplification, and are provided with tuning guidelines. Energy-based Control of Electromechanical Systems is intended for both theorists and practitioners. Therefore, the stability proofs are not based on abstract mathematical ideas but Lyapunov stability theory. Several interpretations of the proofs are given along the body of the book using simple energy ideas and the complete proofs are included in appendices. The complete modeling of each motor studied is also presented, allowing for a thorough understanding. Advances in Industrial Control reports and encourages 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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2. |
Record Nr. |
UNINA9911034575703321 |
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Autore |
Henry Alastair |
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Titolo |
Willingness to Communicate, Multilingualism and Interactions in Community Contexts |
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Pubbl/distr/stampa |
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Bristol : , : Multilingual Matters, , 2023 |
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©2024 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (306 pages) |
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Collana |
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Psychology of Language Learning and Teaching Series ; ; v.22 |
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Altri autori (Persone) |
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MacIntyrePeter D. <1965-> |
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Disciplina |
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Soggetti |
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Multilingualism - Psychological aspects |
Multilingualism - Social aspects |
Language and languages - Study and teaching - Psychological aspects |
Language and languages - Study and teaching - Social aspects |
Interpersonal communication - Psychological aspects |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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Cover -- Half-Title -- Series -- Title -- Copyright -- Contents -- |
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Figures and Tables -- Acknowledgements -- Foreword: From Two to Three Dimensions in WTC Research -- Part 1: The WTC Construct and the Research Frontier -- 1 Introduction -- 2 The Pyramid Model and the Dynamic Turn in WTC Research -- Part 2: The Research Project -- 3 Language Choice and Willingness to Communicate in a Swedish Context -- 4 The Project Design and the Research Process -- 5 The Participants -- Part 3: Stories of Interactions in Community Contexts -- 6 Developmental Dynamics: Kesu, Maria and Jessie -- 7 Linguistic Self-Efficacy and Communication Willingness: Wafaa -- 8 Willingness to Communicate and the Challenges of Tied Migration: Olivia and Titly -- 9 Willingness to Communicate and Translanguaging Ideologies: Pranisha and Sabrina -- Part 4: Syntheses, Conceptualisations and Ethics -- 10 At a Specific Time, with a Specific Person or Persons, Using a L2 (or a Mix of Languages) -- 11 Introducing a 3D Model of the WTC Pyramid -- 12 The Probability of Initiating Communication, Given Choice and Opportunity -- 13 The 'Ethics of Walking Alongside': Ethical Engagement When Studying a Process in Motion -- Conclusion -- References -- Index. |
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Sommario/riassunto |
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This book examines the communication behaviours of individuals in multilingual community contexts. Using a complexity lens and the presentation of a revised 3D pyramid model, the authors demonstrate the dynamic nature of willingness to communicate over time and shed new light on processes that affect communication, migration and well-being. |
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