Capítols de llibre
http://hdl.handle.net/2117/5081
2017-02-23T05:05:17ZSliding mode control of LCL full-bridge rectifiers
http://hdl.handle.net/2117/90439
Sliding mode control of LCL full-bridge rectifiers
Dòria Cerezo, Arnau; Biel Solé, Domingo; Fossas Colet, Enric
In control theory, sliding mode control, or SMC, is a nonlinear control method that alters the dynamics of a nonlinear system by application of a discontinuous control signal that forces the system to "slide" along a crosssection of the system's normal behavior. This book describes recent advances in the theory, properties, methods and applications of SMC. The book is organised into four parts. The first part is devoted to the design of higher-order sliding-mode controllers, with specific designs presented in the context of disturbance rejection by means of observation and identification. The second part offers a set of tools for establishing different dynamic properties of systems with discontinuous right-hand sides. Time discretization is addressed in the third part. First-order sliding modes are discretized using an implicit scheme - higher-order slidingmode differentiators, typically used in output-feedback schemes, are discretized in such a way that the optimal accuracy of their continuous-time counterparts is restored. The last part is dedicated to applications. In the context of energy conversion, sliding-mode control is applied to variable-speed wind turbines, fuel cell coupled to a power converter, rugged DC series motors and rectifiers with unity power factor, and electropneumatic actuator. Finally, an event-triggered sliding-mode scheme is proposed for networked control systems subject to packet loss, jitter and delayed transmissions.
2016-10-04T10:29:07ZDòria Cerezo, ArnauBiel Solé, DomingoFossas Colet, EnricIn control theory, sliding mode control, or SMC, is a nonlinear control method that alters the dynamics of a nonlinear system by application of a discontinuous control signal that forces the system to "slide" along a crosssection of the system's normal behavior. This book describes recent advances in the theory, properties, methods and applications of SMC. The book is organised into four parts. The first part is devoted to the design of higher-order sliding-mode controllers, with specific designs presented in the context of disturbance rejection by means of observation and identification. The second part offers a set of tools for establishing different dynamic properties of systems with discontinuous right-hand sides. Time discretization is addressed in the third part. First-order sliding modes are discretized using an implicit scheme - higher-order slidingmode differentiators, typically used in output-feedback schemes, are discretized in such a way that the optimal accuracy of their continuous-time counterparts is restored. The last part is dedicated to applications. In the context of energy conversion, sliding-mode control is applied to variable-speed wind turbines, fuel cell coupled to a power converter, rugged DC series motors and rectifiers with unity power factor, and electropneumatic actuator. Finally, an event-triggered sliding-mode scheme is proposed for networked control systems subject to packet loss, jitter and delayed transmissions.Sliding modes
http://hdl.handle.net/2117/80578
Sliding modes
Biel Solé, Domingo; Fossas Colet, Enric
The increased efficiency and quality constraints imposed on electrical energy systems have inspired a renewed research interest in the study of formal approaches to the analysis and control of power electronics converters. Switched systems represent a useful framework for modeling these converters and the peculiarities of their operating conditions and control goals justify the specific classification of “switched electronic systems”. Indeed, idealized switched models of power converters introduce problems not commonly encountered when analyzing generic switched models or non-switched electrical networks. In that sense the analysis of switched electronic systems represents a source for new ideas and benchmarks for switched and hybrid systems generally. Dynamics and Control of Switched Electronic Systems draws on the expertise of an international group of expert contributors to give an overview of recent advances in the modeling, simulation and control of switched electronic systems. The reader is provided with a well-organized source of references and a mathematically-based report of the state of the art in analysis and design techniques for switched power converters. Intuitive language, realistic illustrative examples and numerical simulations help the reader to come to grips with the rigorous presentation of many promising directions of research such as: converter topologies and modulation techniques; continuous-time, discrete-time and hybrid models; modern control strategies for power converters; and challenges in numerical simulation. The guidance and information imparted in this text will be appreciated by engineers, and applied mathematicians working on system and circuit theory, control systems development, and electronic and energy conversion systems design.
2015-12-15T14:08:07ZBiel Solé, DomingoFossas Colet, EnricThe increased efficiency and quality constraints imposed on electrical energy systems have inspired a renewed research interest in the study of formal approaches to the analysis and control of power electronics converters. Switched systems represent a useful framework for modeling these converters and the peculiarities of their operating conditions and control goals justify the specific classification of “switched electronic systems”. Indeed, idealized switched models of power converters introduce problems not commonly encountered when analyzing generic switched models or non-switched electrical networks. In that sense the analysis of switched electronic systems represents a source for new ideas and benchmarks for switched and hybrid systems generally. Dynamics and Control of Switched Electronic Systems draws on the expertise of an international group of expert contributors to give an overview of recent advances in the modeling, simulation and control of switched electronic systems. The reader is provided with a well-organized source of references and a mathematically-based report of the state of the art in analysis and design techniques for switched power converters. Intuitive language, realistic illustrative examples and numerical simulations help the reader to come to grips with the rigorous presentation of many promising directions of research such as: converter topologies and modulation techniques; continuous-time, discrete-time and hybrid models; modern control strategies for power converters; and challenges in numerical simulation. The guidance and information imparted in this text will be appreciated by engineers, and applied mathematicians working on system and circuit theory, control systems development, and electronic and energy conversion systems design.Material didáctico basado en Virtual Test Bed para sistemas electrónicos de potencia para energías renovables
http://hdl.handle.net/2117/7114
Material didáctico basado en Virtual Test Bed para sistemas electrónicos de potencia para energías renovables
Biel Solé, Domingo; Ramos Lara, Rafael Ramón
En este trabajo se presenta la experiencia didáctica desarrollada por profesores de la Universidad Politécnica de Cataluña con relación a las energías renovables y su actual aplicación tecnológica. En este sentido se indica el programa de teoría y prácticas de la asignatura "Sistemas Electrónicos de Potencia para Energías Renovables" que se oferta actualmente como asignatura optativa en la Escuela Politécnica Superior de Ingeniería de Vilanova i la Geltrú. Las prácticas de la asignatura se basan en el uso del programa de libre acceso Virtual Test Bed.
2010-05-04T08:47:05ZBiel Solé, DomingoRamos Lara, Rafael RamónEn este trabajo se presenta la experiencia didáctica desarrollada por profesores de la Universidad Politécnica de Cataluña con relación a las energías renovables y su actual aplicación tecnológica. En este sentido se indica el programa de teoría y prácticas de la asignatura "Sistemas Electrónicos de Potencia para Energías Renovables" que se oferta actualmente como asignatura optativa en la Escuela Politécnica Superior de Ingeniería de Vilanova i la Geltrú. Las prácticas de la asignatura se basan en el uso del programa de libre acceso Virtual Test Bed.Simultaneous Interconnection and Damping Assignment Passivity-Based Control: Two Practical Examples
http://hdl.handle.net/2117/6084
Simultaneous Interconnection and Damping Assignment Passivity-Based Control: Two Practical Examples
Batlle Arnau, Carles; Dòria Cerezo, Arnau; Espinosa Pérez, Gerardo; Ortega, Romeo
Passivity-based control (PBC) is a generic name given to a family of controller design techniques that achieves system stabilization via the route of passivation, that is, rendering the closed-loop system passive with a desired storage function (that usually qualifies as a Lyapunov function for the stability analysis.) If the passivity property turns out to be output strict, with an output signal with respect to which the system is detectable, then asymptotic stability is ensured.
2009-12-14T09:03:05ZBatlle Arnau, CarlesDòria Cerezo, ArnauEspinosa Pérez, GerardoOrtega, RomeoPassivity-based control (PBC) is a generic name given to a family of controller design techniques that achieves system stabilization via the route of passivation, that is, rendering the closed-loop system passive with a desired storage function (that usually qualifies as a Lyapunov function for the stability analysis.) If the passivity property turns out to be output strict, with an output signal with respect to which the system is detectable, then asymptotic stability is ensured.