Spiral Vector Theory Of Ac Circuits And Machines
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Spiral Vector Theory Of Ac Circuits And Machines
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Author : Sakae Yamamura
language : en
Publisher:
Release Date : 1992
Spiral Vector Theory Of Ac Circuits And Machines written by Sakae Yamamura and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Mathematics categories.
The spiral vector theory proposed and explained in this book unifies the steady-state and transient-state theories of AC circuits and machines. Previously, steady-state theory and transient-state theory were separated by different expressions for state variables. This new theory makes possible the analysis of transient phenomena in three-phase machines, an area largely untouched by conventional AC machine theories. Results of AC motor analysis obtained by the spiral vector method have led directly to new torque controls which give AC motors much superior performance to the usual DC control motors. With the rapid developments in inverter technology making the control of AC power easier, the spiral-vector theory provides the necessary theoretical foundation for the understanding and design of AC circuits and machines.
General Airgap Field Modulation Theory For Electrical Machines
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Author : Ming Cheng
language : en
Publisher: John Wiley & Sons
Release Date : 2022-12-06
General Airgap Field Modulation Theory For Electrical Machines written by Ming Cheng and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-06 with Technology & Engineering categories.
General Airgap Field Modulation Theory for Electrical Machines Introducing a new theory for electrical machines Air-gap magnetic field modulation phenomena have been widely observed in electrical machines. This book serves as the first English-language overview of these phenomena, as well as developing systematically for the first time a general theory by which to understand and research them. This theory not only serves to unify analysis of disparate electrical machines, from conventional DC machines, induction machines, and synchronous machines to unconventional flux-switching permanent magnet machines, Vernier machines, doubly-fed brushless machines etc., but also paves the way towards the creation of new electrical machine topologies. General Airgap Field Modulation Theory for Electrical Machines includes both overviews of key concepts in electrical machine engineering and in-depth specialized analysis of the novel theory itself. It works through the applications of the developed theory before proceeding to both qualitative analysis of the theory’s operating principles and quantitative analysis of its parameters. Readers will also find: The collective experience of four award-winning authors with long records of international scholarship on this subject Three separate chapters covering the principal applications of the theory, with detailed examples Discussion of potential innovations made possible by this theory General Airgap Field Modulation Theory for Electrical Machines is an essential introduction to this theory for postgraduates, researchers, and electrical engineers.
Vector Control And Dynamics Of Ac Drives
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Author : D. W. Novotny
language : en
Publisher: Oxford University Press
Release Date : 1996
Vector Control And Dynamics Of Ac Drives written by D. W. Novotny and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Mathematics categories.
Electric drive systems is an area of great change and increasing commercial importance in industry today. Written by experts in the field, this book takes account of recent developments. These have been due largely to the advances in power electronics and computer control; in turn, they have made possible the implementation of a.c. drive systems, in place of d.c. Topics include inverter machine dynamics; constant speed behavior and the development of conventional equivalent circuits; vector controlled systems; and current regulators.
Large A C Machines
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Author : Iliya Boguslawsky
language : en
Publisher: Springer
Release Date : 2016-11-30
Large A C Machines written by Iliya Boguslawsky and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-30 with Technology & Engineering categories.
In this monograph the authors solve the modern scientific problems connected with A.C. motors and generators, based first on the detailed consideration of their physical phenomena. The authors describe the theory and investigative methods they developed and applied in practice, which are considered to be of essential interest for specialists in the field of the electrical engineering industry in European countries, the USA, Argentina, and Brazil, as well as in such countries as India, China, and Iran. This book will be of interest to engineers specialized in the field of the manufacture, operation, and repair of A.C. machines (motors and generators) as well as electric drives; to professors, lecturers, and post-graduate students of technical universities, who are specializing in the field of electric machine engineering and electric drives; and to students who are engaged in the field of high current techniques, electric drives, and electric machine engineering.
Electric Machines
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Author : Ion Boldea
language : en
Publisher: CRC Press
Release Date : 2021-10-07
Electric Machines written by Ion Boldea and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-07 with Science categories.
With its comprehensive coverage of the state of the art, this Second Edition introduces basic types of transformers and electric machines. Classifications and characterization—modeling and performance—of power electric transformers (single and multiphase), motors and generators, commercial machines (dc brush, induction dc excited synchronous, PM synchronous, reluctance synchronous) and some new ones (multiphase ac machines, switched reluctance machines) with great potential for industry with rotary or linear motion are all treated in the book. The book covers, in detail, circuit modeling characteristics and performance characteristics under steady state, testing techniques and preliminary electromagnetic-thermic dimensioning with lots of solved numerical examples and special cases to illustrate new electric machines with strong industrialization potential. All formulae used to characterize parameters and performance may be safely used in industry for preliminary designs and have been applied in the book through numerical solved examples of industrial interest. Numerous computer simulation programs in MATLAB® and Simulink® that illustrate performance characteristics present in the chapters are included and many be used as homework to facilitate a deeper understanding of fundamental issues. This book is intended for a first-semester course covering electric transformers, rotary and linear machines, steady-state modeling and performance computation, preliminary dimensioning, and testing standardized and innovative techniques. The textbook may be used by R&D engineers in industry as all machine parameters and characteristics are calculated by ready-to-use industrial design mathematical expressions.
Model Predictive Control For Doubly Fed Induction Generators And Three Phase Power Converters
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Author : Alfeu Sguarezi
language : en
Publisher: Elsevier
Release Date : 2022-01-06
Model Predictive Control For Doubly Fed Induction Generators And Three Phase Power Converters written by Alfeu Sguarezi and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-01-06 with Technology & Engineering categories.
Model Predictive Control for Doubly-Fed Induction Generators and Three-Phase Power Converters describes the application of model predictive control techniques with modulator and finite control sets to squirrel cage induction motor and in doubly-fed induction generators using field orientation control techniques as both current control and direct power control. Sections discuss induction machines, their key modulation techniques, introduce the utility of model predictive control, review core concepts of vector control, direct torque control, and direct power control alongside novel approaches of MPC. Mathematical modeling of cited systems, MPC theory, their applications, MPC design and simulation in MATLAB are also considered in-depth. The work concludes by addressing implementation considerations, including generator operation under voltage sags or distorted voltage and inverters connected to the grid operating under distorted voltage. Experimental results are presented in full. Adopts model predictive control design for optimized induction machines geared for complex grid dynamics Demonstrates how to simulate model predictive control using MATLAB and Simulink Presents information about hardware implementation to obtain experimental results Covers generator operation under voltage sags or distorted voltage
Bridging Circuits And Fields
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Author : Alexander I. Petroianu
language : en
Publisher: CRC Press
Release Date : 2021-11-30
Bridging Circuits And Fields written by Alexander I. Petroianu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-30 with Mathematics categories.
Energy and power are fundamental concepts in electromagnetism and circuit theory, as well as in optics, signal processing, power engineering, electrical machines, and power electronics. However, in crossing the disciplinary borders, we encounter understanding difficulties due to (1) the many possible mathematical representations of the same physical objects, and (2) the many possible physical interpretations of the same mathematical entities. The monograph proposes a quantum and a relativistic approach to electromagnetic power theory that is based on recent advances in physics and mathematics. The book takes a fresh look at old debates related to the significance of the Poynting theorem and the interpretation of reactive power. Reformulated in the mathematical language of geometric algebra, the new expression of electromagnetic power reflects the laws of conservation of energy-momentum in fields and circuits. The monograph offers a mathematically consistent and a physically coherent interpretation of the power concept and of the mechanism of power transmission at the subatomic (mesoscopic) level. The monograph proves (paraphrasing Heaviside) that there is no finality in the development of a vibrant discipline: power theory.
Inverse Problems And Optimal Design In Electricity And Magnetism
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Author : Pekka Neittaanmäki
language : en
Publisher: Oxford University Press
Release Date : 1996-01-11
Inverse Problems And Optimal Design In Electricity And Magnetism written by Pekka Neittaanmäki and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-01-11 with Language Arts & Disciplines categories.
The impact of optimization methods in electromagnetism has been much less than in mechanical engineering and particularly the solution of inverse problems in structural mechanics. This book addresses this omission: it will serve as a guide to the theory as well as the computer implementation of solutions. It is self-contained covering all the mathematical theory necessary.
Induction Machines Handbook
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Author : Ion Boldea
language : en
Publisher: CRC Press
Release Date : 2020-11-19
Induction Machines Handbook written by Ion Boldea and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-19 with Technology & Engineering categories.
The third edition of Induction Machines Handbook comprises two volumes, Induction Machines Handbook: Steady State Modeling and Performance and Induction Machines Handbook: Transients, Control Principles, Design and Testing. The promise of renewable (hydro and wind) energy via cage-rotor and doubly fed variable speed generators e-transport propulsion, i-home appliances makes this third edition state of the art tool, conceived with numerous case studies, timely for both Academia and Industry. The first volume offers a thorough treatment of steady state modeling and performance of induction machines, the most used electric motors (generators) in rather constant or variable speed drives for even lower energy consumption and higher productivity in basically all industries, from home appliances, through robotics to e-transport and wind energy conversion. The second volume presents a practical up to date treatment of intricate issues with induction machine (IM) required for design and testing both in rather constant and variable speed (with power electronics) drives. It contains ready to use in industrial design and testing knowledge with numerous case studies to facilitate thorough assimilation of new knowledge.
The Art And Science Of Rotating Field Machines Design A Practical Approach
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Author : Vlado Ostović
language : en
Publisher: Springer
Release Date : 2016-11-23
The Art And Science Of Rotating Field Machines Design A Practical Approach written by Vlado Ostović and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-23 with Technology & Engineering categories.
This book highlights procedures utilized by the design departments of leading global manufacturers, offering readers essential insights into the electromagnetic and thermal design of rotating field (induction and synchronous) electric machines. Further, it details the physics of the key phenomena involved in the machines’ operation, conducts a thorough analysis and synthesis of polyphase windings, and presents the tools and methods used in the evaluation of winding performance. The book develops and solves the machines’ magnetic circuits, and determines their electromagnetic forces and torques. Special attention is paid to thermal problems in electrical machines, along with fluid flow computations. With a clear emphasis on the practical aspects of electric machine design and synthesis, the author applies his nearly 40 years of professional experience with electric machine manufacturers – both as an employee and consultant – to provide readers with the tools they need to determine fluid flow parameters and compute temperature distributions.