Download or read book Control of Synchronous Motors written by Jean-Paul Louis and published by John Wiley & Sons. This book was released on 2013-02-07 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synchronous motors are indubitably the most effective device to drive industrial production systems and robots with precision and rapidity. Their control law is thus critical for combining at the same time high productivity to reduced energy consummation. As far as possible, the control algorithms must exploit the properties of these actuators. Therefore, this work draws on well adapted models resulting from the Park’s transformation, for both the most traditional machines with sinusoidal field distribution and for machines with non-sinusoidal field distribution which are more and more used in industry. Both, conventional control strategies like vector control (either in the synchronous reference frame or in the rotor frame) and advanced control theories like direct control and predictive control are thoroughly presented. In this context, a significant place is reserved to sensorless control which is an important and critical issue in tomorrow’s motors.

Download or read book The Electric Vehicle and the Burden of History written by David A. Kirsch and published by . This book was released on 2000 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the context of regulations requiring emission so low that electric and hybrid cars will be necessary, Kirsch (industrial ecology, U. of California-Los Angeles) takes the Electric Vehicle Company as a starting point for a vision of an alternative automotive system in which gasoline and electric vehicles would each have been used to supply different kinds of transport services. He argues that technological superiority was in the hearts and minds of engineers, consumers, and drivers. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book Control of Machines with Friction written by Brian Armstrong-Hélouvry and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is my ambition in writing this book to bring tribology to the study of control of machines with friction. Tribology, from the greek for study of rubbing, is the discipline that concerns itself with friction, wear and lubrication. Tribology spans a great range of disciplines, from surface physics to lubrication chemistry and engineering, and comprises investigators in diverse specialities. The English language tribology literature now grows at a rate of some 700 articles per year. But for all of this activity, in the three years that I have been concerned with the control of machines with friction, I have but once met a fellow controls engineer who was aware that the field existed, this including many who were concerned with friction. In this vein I must confess that, before undertaking these investigations, I too was unaware that an active discipline of friction existed. The experience stands out as a mark of the specialization of our time. Within tribology, experimental and theoretical understanding of friction in lubricated machines is well developed. The controls engineer's interest is in dynamics, which is not the central interest of the tribologist. The tribologist is more often concerned with wear, with respect to which there has been enormous progress - witness the many mechanisms which we buy today that are lubricated once only, and that at the factory. Though a secondary interest, frictional dynamics are note forgotten by tribology.

Download or read book On line Estimation and Adaptive Control of Bioreactors written by G. Bastin and published by Elsevier. This book was released on 2013-10-22 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with monitoring and control of biotechnological processes. Different methods are proposed which are based on the nonlinear structure of the process and do not require any a priori knowledge of the fermentation parameters. The theoretical stability and convergence properties of the proposed algorithms are analysed and their performances are illustrated by simulation results and, in many instances, by real life experiments. The concept of software sensors is introduced; these are algorithms based on the nonlinear model of the process and designed for on-line estimation of the biological variables and/or the fermentation parameters. In order to deal with process nonstationarities and parameter uncertainties, reference is made to adaptive estimation and control techniques.The book is the result of an intensive joint research effort by the authors during the last decade. It is intended as a graduate level text for students of bioengineering as well as a reference text for scientists and engineers involved in the design and optimization of bioprocesses.

Download or read book Semigroups for Delay Equations written by András Bátkai and published by A K Peters, Ltd.. This book was released on 2005 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: In most physical, chemical, biological and economic phenomena it is quite natural to assume that the system not only depends on the present state but also on past occurrences. These circumstances are mathematically described by partial differential equations with delay. This book presents, in a systematic fashion, how delay equations can be studied in Lp-history spaces.Appendices offering supplementary information and a comprehensive index make this book an ideal introduction and research tool for mathematicians, chemists, biologists and economists.

Download or read book One Parameter Semigroups for Linear Evolution Equations written by Klaus-Jochen Engel and published by Springer Science & Business Media. This book was released on 2006-04-06 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the theory of strongly continuous one-parameter semigroups of linear operators. A special feature of the text is an unusually wide range of applications such as to ordinary and partial differential operators, to delay and Volterra equations, and to control theory. Also, the book places an emphasis on philosophical motivation and the historical background.

Download or read book Geometric Control Theory written by Velimir Jurdjevic and published by Cambridge University Press. This book was released on 1997 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geometric control theory is concerned with the evolution of systems subject to physical laws but having some degree of freedom through which motion is to be controlled. This book describes the mathematical theory inspired by the irreversible nature of time evolving events. The first part of the book deals with the issue of being able to steer the system from any point of departure to any desired destination. The second part deals with optimal control, the question of finding the best possible course. An overlap with mathematical physics is demonstrated by the Maximum principle, a fundamental principle of optimality arising from geometric control, which is applied to time-evolving systems governed by physics as well as to man-made systems governed by controls. Applications are drawn from geometry, mechanics, and control of dynamical systems. The geometric language in which the results are expressed allows clear visual interpretations and makes the book accessible to physicists and engineers as well as to mathematicians.

Download or read book Positive 1D and 2D Systems written by Tadeusz Kaczorek and published by Springer Science & Business Media. This book was released on 2002 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is devoted to the positive multivariable 1D and 2D linear, time-invariant, finite-dimensional system. The book is based on the author's lectures for Ph.D. students, delivered at Warsaw University of Technology in the academic year 1999/2000. The book consists of two parts; the first part is devoted to the 1D positive linear systems and the second to the 2D positive linear systems described by the Rosser model and the Fornasini-Marchesini models. Definitions, basic properties and theorems concerning positive matrices and graphs are presented; the externally and internally positive linear continuous-time and discrete-time linear systems are considered; and the reachability, controlability and observability of positive linear systems are discussed. The realisation problem for positive 1D and 2D systems is also considered, and the 2D models of externally and internally positive and their properties and controllability and minimum energy control of positive 2D systems are investigated.

Download or read book Commande sans capteur de la machine synchrone aimants permanents written by Omrane Ines and published by Academiques. This book was released on 2015-02-05 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: La commande vectorielle de la machine synchrone a aimants permanents necessite une connaissance precise de la position rotorique. Traditionnellement, cette position est obtenue a partir de l'utilisation d'un capteur mecanique. Depuis des annees, l'attention de la communaute scientifique s'est portee sur la limitation du nombre de capteurs vu que leur presence, non seulement augmente le cout et la complexite materielle totale, mais aussi reduit sa fiabilite avec une sensibilite additionnelle aux perturbations exterieures. Dans une premiere partie, nous proposons le capteur le mieux adapte pour une application automobile. Ce capteur est base sur le couplage intelligent entre un observateur et un capteur logiciel base sur la technique d'injection de signaux. Dans une deuxieme partie, nous proposons une methode simple et rapide permettant l'estimation de la resistance et des inductances statoriques a l'arret. La combinaison de l'identification a l'arret et du capteur logiciel permet une bonne estimation de la position de la machine synchrone a aimants permanents sur une large plage de vitesse y compris les basses vitesses et a l'arret.

Download or read book Real Time Digital Control Applications written by A. Alonso-Concheiro and published by Elsevier. This book was released on 2014-05-23 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: Real Time Digital Control Applications is a compilation of papers presented at the Symposium on Real-Time Digital Control Applications, sponsored by the International Federation of Automatic Control (IFAC) and the International Federation for Information Processing (IFIP), held in Guadalajara, Mexico. The event is organized to provide developing countries with the opportunity to gain insights -- from the sharing of ideas and experiences of experts from around the world to the rapid growth and development of applications of real-time digital control systems, which is considered as the basis of industrial revolution. The book presents and discusses the various scientific, industrial, and technical applications of real-time digital control systems. Applications in power generation, water, metal processing, cement, food, and manufacturing industries are shown. The text also covers applications in robotics, biomedicine, monitoring and failure detection, fuel optimization and heat control, adaptive process control, modeling, and computer software. Industrial engineers, scientists, economists, computer scientists, robotics experts, planners, and technicians will find this book invaluable.

Download or read book Fractional Linear Systems and Electrical Circuits written by Tadeusz Kaczorek and published by Springer. This book was released on 2014-10-13 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph covers some selected problems of positive and fractional electrical circuits composed of resistors, coils, capacitors and voltage (current) sources. The book consists of 8 chapters, 4 appendices and a list of references. Chapter 1 is devoted to fractional standard and positive continuous-time and discrete-time linear systems without and with delays. In chapter 2 the standard and positive fractional electrical circuits are considered and the fractional electrical circuits in transient states are analyzed. Descriptor linear electrical circuits and their properties are investigated in chapter 3, while chapter 4 is devoted to the stability of fractional standard and positive linear electrical circuits. The reachability, observability and reconstructability of fractional positive electrical circuits and their decoupling zeros are analyzed in chapter 5. The fractional linear electrical circuits with feedbacks are considered in chapter 6. In chapter 7 solutions of minimum energy control for standard and fractional systems with and without bounded inputs is presented. In chapter 8 the fractional continuous-time 2D linear systems described by the Roesser type models are investigated.

Download or read book Perspectives on Innovation written by Franco Malerba and published by Cambridge University Press. This book was released on 2007-03-29 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Case studies, empirical models, appreciative analyses and formal theories abound.

Download or read book Multiple Imaginaries of the Fossil Fuel Free Future written by Amelia Mutter and published by Linköping University Electronic Press. This book was released on 2020-02-03 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: I kölvattnet av klimatkrisen har det blivit allt tydligare att det fossilbaserade transportsystemet måste genomgå en global omvandling. Många alternativ för förnyelsebara drivmedel har föreslagits, alla omgivna av föreställningar om hur dessa tekniker kommer att bidra till en bättre framtid. Dessa föreställningar påverkar utvecklingen eftersom implementeringen av varje alternativ teknik kräver uppbyggnad av mångfaldiga socio-tekniska ensembler som stöder dess användning. Som ett resultat av detta är det troligt att processen för att ersätta fossila bränslen med dessa förnybara alternativ kommer bli komplex. Avhandlingen betraktar uppkomsten av två av dessa föreställningar om förnybara bränslen och studerar visioner om biogas och el i ett svenskt sammanhang. Biogas har en lång historia som transportbränsle i Sverige där, även om den utgör en liten andel av den totala bränsleanvändningen, utgör den ändå grunden för många kommunala kollektivtrafiksystem. Elektriska fordon har blivit alltmer attraktiva när fler aktörer anammar en föreställning som ser en framtid där fordon är delade, autonoma och elektriska. Denna interaktion exemplifieras i kollektivtrafik i städer eftersom många kommuner börjar implementera elbussar i ett försök att öka energieffektiviteten och minska föroreningarna. Denna avhandling följer tre fallstudier där föreställningarna om biogas och elfordon samverkar: kollektivtrafik i städerna Linköping respektive Malmö samt en analys av det omfattande nationella policydokumentet Fossilfrihet på väg. Avhandlingen bidrar till en bredare förståelse för hur visioner kan påverka tröghet och förändring av transportalternativ inom den bredare omställningen till en fossilfri framtid. In the wake of the climate crisis, it has become increasingly evident that the fossil fuel-based transport system must undergo a global transformation. Numerous renewable fuel alternatives have been suggested, accompanied by imaginaries of how these technologies will contribute to a better future. These imaginaries have a wide-ranging impact because the implementation of each alternative technology will require the build-up of multifarious socio-technical ensembles that support their use. As a result, replacing fossil fuels with these renewable alternatives is likely to be a complex process. This dissertation considers the emergence of two such visions of renewable fuels studying imaginaries of biogas and electricity in the Swedish context. Biogas has a long history of use as a transport fuel in Sweden, where although it makes up a small percentage of total fuel use it also forms the basis of numerous municipal public transport systems. Meanwhile, electric vehicles have become increasingly attractive as more actors subscribe to an imaginary that sees the future of vehicles as shared, autonomous, and electric. This interaction is exemplified in urban public transportation as many municipalities begin to implement electric buses in an attempt to increase energy efficiency and reduce pollution. This thesis follows three case studies where the imaginaries of biogas and electric vehicles interact: urban public transport in the municipalities of Linköping and Malmö, and analysis of a comprehensive national policy document Fossil fuel freedom on the road. It contributes to a wider understanding of how visions can influence obduracy and change of transport alternatives within the wider transformation to a fossil fuel free future.

Download or read book Delay Equations written by Odo Diekmann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim here is to provide an introduction to the mathematical theory of infinite dimensional dynamical systems by focusing on a relatively simple - yet rich - class of examples, delay differential equations. This textbook contains detailed proofs and many exercises, intended both for self-study and for courses at graduate level, as well as a reference for basic results. As the subtitle indicates, this book is about concepts, ideas, results and methods from linear functional analysis, complex function theory, the qualitative theory of dynamical systems and nonlinear analysis. The book provides the reader with a working knowledge of applied functional analysis and dynamical systems.

Download or read book Infinite Dimensional Linear Systems Theory written by Ruth F. Curtain and published by Springer. This book was released on 1978 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Problems of Fractional Systems Theory written by Tadeusz Kaczorek and published by Springer Science & Business Media. This book was released on 2011-05-10 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph covers some selected problems of positive fractional 1D and 2D linear systems. It is an extended and modified English version of its preceding Polish edition published by Technical University of Bialystok in 2009. This book is based on the lectures delivered by the author to the Ph.D. students of the Faculty of Electrical Engineering of Bialystok University of Technology and of Warsaw University of Technology and on invited lectures in several foreign universities in the last three years.

Download or read book 2015 IEEE International Conference on Smart Energy Grid Engineering SEGE written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: