Low-Frequency Applications of Electromagnetics - With Particular Reference to Electrical Machines PDF Download
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Author: Richard Stoll
Publisher: Lulu.com
ISBN: 1447674057
Category : Technology & Engineering
Languages : en
Pages : 176
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Book Description
The book contains a wide selection of practical low-frequency problems in electromagnetism solved algebraically using the method of "separation of variables." The degree of difficulty ranges from simple to very challenging, the latter mainly concerning large two-pole turbogenerators. Where necessary the electrical-machine theory is explained in the text, but it is assumed that the reader has some basic knowledge of electromagnetism. However, the book commences with three short chapters on electromagnetic theory for ease of reference.
Author: Richard Stoll
Publisher: Lulu.com
ISBN: 1447674057
Category : Technology & Engineering
Languages : en
Pages : 176
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Book Description
The book contains a wide selection of practical low-frequency problems in electromagnetism solved algebraically using the method of "separation of variables." The degree of difficulty ranges from simple to very challenging, the latter mainly concerning large two-pole turbogenerators. Where necessary the electrical-machine theory is explained in the text, but it is assumed that the reader has some basic knowledge of electromagnetism. However, the book commences with three short chapters on electromagnetic theory for ease of reference.
Author: Saurabh Kumar Mukerji
Publisher: CRC Press
ISBN: 149870915X
Category : Technology & Engineering
Languages : en
Pages : 439
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Book Description
Electromagnetics for Electrical Machines offers a comprehensive yet accessible treatment of the linear theory of electromagnetics and its application to the design of electrical machines. Leveraging valuable classroom insight gained by the authors during their impressive and ongoing teaching careers, this text emphasizes concepts rather than numerical methods, providing presentation/project problems at the end of each chapter to enhance subject knowledge. Highlighting the essence of electromagnetic field (EMF) theory and its correlation with electrical machines, this book: Reviews Maxwell’s equations and scalar and vector potentials Describes the special cases leading to the Laplace, Poisson’s, eddy current, and wave equations Explores the utility of the uniqueness, generalized Poynting, Helmholtz, and approximation theorems Discusses the Schwarz–Christoffel transformation, as well as the determination of airgap permeance Addresses the skin effects in circular conductors and eddy currents in solid and laminated iron cores Contains examples relating to the slot leakage inductance of rotating electrical machines, transformer leakage inductance, and theory of hysteresis machines Presents analyses of EMFs in laminated-rotor induction machines, three-dimensional field analyses for three-phase solid rotor induction machines, and more Electromagnetics for Electrical Machines makes an ideal text for postgraduate-level students of electrical engineering, as well as of physics and electronics and communication engineering. It is also a useful reference for research scholars concerned with problems involving electromagnetics.
Author: Perry
Publisher: Routledge
ISBN: 1351434578
Category : Technology & Engineering
Languages : en
Pages : 256
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Book Description
In an historical context, the development of electromagnetic theory and anaylsis has undergone many evolutionary changes since the 19th century. Faraday's 1831 discovery of the magnetic induction principle was at first a scientific curisoity, then a subject of intense intellectual activity resulting in the infication of the macroscopic electromagnetic principles through Maxwell's equations. One of the subdisciplines created by the discovery of electromagnetic induction and its theoretical foundation was the anaylsis of specific arrangements of ponderable bodies, including conductors which interact with electromagnetic fields to produce the measurable phyiscal effects which we call heat and mechanical force. This book is intended neither as a suppliment or replacement for previous texts, however, a number of conductor arrangements are covered here which are not done elsewhere. It is primarily for industrial use; where insight into the physical processes may be of practical value.
Author: Perry
Publisher: CRC Press
ISBN: 9780824774530
Category : Technology & Engineering
Languages : en
Pages : 264
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Book Description
This book provides a detailed investigation of steady-state "eddy current" analysis and electromechanical processes relying on low frequency electromagnetic induction. It also presents classical one- and two-dimensional formulations for coils, cables, and induction motors.
Author:
Publisher: World Scientific
ISBN: 9813270187
Category : Technology & Engineering
Languages : en
Pages : 2064
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Book Description
The five-volume set may serve as a comprehensive reference on electromagnetic analysis and its applications at all frequencies, from static fields to optics and photonics. The material includes micro- and nanomagnetics, the new generation of electric machines, renewable energy, hybrid vehicles, low-noise motors; antennas and microwave devices, plasmonics, metamaterials, lasers, and more.Written at a level accessible to both graduate students and engineers, Electromagnetic Analysis is a comprehensive reference, covering methods and applications at all frequencies (from statics to optical). Each volume contains pedagogical/tutorial material of high archival value as well as chapters on state-of-the-art developments.
Author: A. Savini
Publisher: Springer Science & Business Media
ISBN: 146130721X
Category : Technology & Engineering
Languages : en
Pages : 306
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Book Description
This book is the collection of the contributions offered at the International Symposium on Electromagnetic Fields in Electrical Engineering, ISEF '87, held in Pavia, Italy, in September 1987. The Symposium was attended by specialists engaged in both theoretical and applied research in low-frequency electromagnetism. The charming atmosphere of Pavia and its ancient university provided a very effective environment to discuss the latest results in the field and, at the same time, to enjoy the company or colleagues and friends coming from over 15 countries. The contributions have been grouped into 7 chapters devoted to fundamental problems, computer programs, transformers, rotating electrical machines, mechanical and thermal effects, various applications and synthesis, respectively. Such a classification is merely to help the reader because a few papers could be put in several chapters. Over the past two decades electromagnetic field computations have received a big impulse by the large availability of digital computers with better and better performances in speed and capacity. Many various methods have been developed but not all of them appear convenient enough for practical engineering use. In fact, the technical and industrial challenges set some principal attributes and criteria for good computation methods. They should be relatively easy to use, fit into moderately sized computers, yield useful design data, maintain flexibility with m1n1mum cost in time and effort.
Author: João Pedro A. Bastos
Publisher: CRC Press
ISBN: 0824748603
Category : Technology & Engineering
Languages : en
Pages : 440
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Book Description
Unlike any other source in the field, this valuable reference clearly examines key aspects of the finite element method (FEM) for electromagnetic analysis of low-frequency electrical devices. The authors examine phenomena such as nonlinearity, mechanical force, electrical circuit coupling, vibration, heat, and movement for applications in the electrical, mechanical, nuclear, aeronautics, and transportation industries. Electromagnetic Modeling by Finite Element Methods offers a wide range of examples, including torque, vibration, and iron loss calculation; coupling of the FEM with mechanical equations, circuits, converters, and thermal effects; material modeling; and proven methods for hysteresis implementation into FEM codes. Providing experimental results and comparisons from the authors' personal research, Electromagnetic Modeling by Finite Element Methods supplies techniques to implement FEM for solving Maxwell's equations, analyze electrical and magnetic losses, determine the behavior of electrical machines, evaluate force distribution on a magnetic medium, simulate movement in electrical machines and electromagnetic devices fed by external circuits or static converters, and analyze the vibrational behavior of electrical machines.
Author: Andrzej Krawczyk
Publisher: IOS Press
ISBN: 9781586036270
Category : Science
Languages : en
Pages : 562
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Book Description
More and more researchers engage into investigation of electromagnetic applications, especially these connected with mechatronics, information technologies, medicine, biology and material sciences. It is readily seen when looking at the content of the book that computational techniques, which were under development during the last three decades and are still being developed, serve as good tools for discovering new electromagnetic phenomena. It means that the field of computational electromagnetics belongs to an application area rather than to a research area. This publication aims at joining theory and practice, thus the majority of papers are deeply rooted in engineering problems, being simultaneously of high theoretical level. The editors hope to touch the heart of the matter in electromagnetism. The book focuses on the following issues: Computational Electromagnetics; Electromagnetic Engineering; Coupled Field and Special Applications; Micro- and Special Devices; Bioelectromagnetics and Electromagnetic Hazard; and Magnetic Material Modelling. Abstracted in Inspec
Author: Ahmed F. Zobaa
Publisher: BoD – Books on Demand
ISBN: 1839687320
Category : Science
Languages : en
Pages : 120
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Book Description
This book is an introduction to the concepts and developments of emerging electric machines, including advances, perspectives, and selected applications. It is a helpful tool for practicing engineers concerned with emerging electric machines and their challenges and potential uses. Chapters cover such topics as electric machines with axial magnetic flux, asynchronous machines with dual power supply, new designs for electrical machines, and more.
Author:
Publisher: IOS Press
ISBN:
Category :
Languages : en
Pages : 7289
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Book Description
