Design and Electromagnetic Feature Analysis of AC Rotating Machines, Masmoudi
Автор: Su Charles Q Название: Electromagnetic Transients in Transformer and Rotating Machi ISBN: 146661921X ISBN-13(EAN): 9781466619210 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 28413.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Electromagnetic Transients in Transformer and Rotating Machine Windings explores relevant theoretical frameworks, the latest empirical research findings, and industry-approved techniques in this area. Written for professionals who want to improve their understanding of the electromagnetic transient phenomena in transformer and generator windings, this research volume is also useful for university research students in power system protection, insulation condition monitoring, and incipient fault diagnosis.
Описание: 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.
Автор: Jeffrey Lang Название: Multi-Wafer Rotating MEMS Machines ISBN: 1461424593 ISBN-13(EAN): 9781461424598 Издательство: Springer Рейтинг: Цена: 20962.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The collaboration and research that was developed to produce the MIT Gas Turbine Engine are described in this book. The book discusses the technical details that have gone into producing the engine and the overall systems-level tradeoffs, in particular its motor compressors and turbine generators, and the decisions that have been made.
Автор: G. Diana Название: Diagnostics of Rotating Machines in Power Plants ISBN: 3211826130 ISBN-13(EAN): 9783211826133 Издательство: Springer Рейтинг: Цена: 16979.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The papers presented in this proceedings volume examine the most significant aspects of diagnostic strategies, emphasizing the importance of predictive maintenance in reducing production shortages and the costs of plant management.
Описание: The necessity and importance of the standardization of electrical apparatus was recognized in Germany as early as 1894 and . the first rules ("Sicherheitsvorschriften f r elektrische Starkstromanlagen gegen Feuersgefahr") came into force in that country in 189S. In the U. S. of America the first discussion on Standardization of Generators, Motors and Transformers took place in 1898 which resulted in the appointment of a Committee and the subsequent acceptance of the rules proposed by it. In England the BritishEngineeringStandards Association was formed in IgOI. In connection with the British Standards an explanatory note appears necessary: The B. E. S. A. 's rules have for many years been the only generally accepted Standards. Since 19I3 the British Electrical and Ailied Manufacturers Association, representing the most important powerful British manufacturing firms, have issued Standardization Rules of their own which have attained considerable commercial importance, A special edition of these rules has been issued for export work which on the whole are guided by ideas similar to those embodied in the B. E. S. A. rules. As far as can be gleaned from the article in the th "Electrical Review" (Vol. 86 Nr. 2, 216, April 16 1920) it isintended to publish a new revision of the B. E. S. A. 's rules which will probably contain some of the recommendations of the B. E. A. M. A., so that this will probably mean the return to one single system of Standards for Britain.
Описание: This book presents a comprehensive introduction to design sensitivity analysis theory as applied to electromagnetic systems. It treats the subject in a unified manner, providing numerical methods and design examples. The specific focus is on continuum design sensitivity analysis, which offers significant advantages over discrete design sensitivity methods. Continuum design sensitivity formulas are derived from the material derivative in continuum mechanics and the variational form of the governing equation. Continuum sensitivity analysis is applied to Maxwell equations of electrostatic, magnetostatic and eddy-current systems, and then the sensitivity formulas for each system are derived in a closed form; an integration along the design interface.The book also introduces the recent breakthrough of the topology optimization method, which is accomplished by coupling the level set method and continuum design sensitivity. This topology optimization method enhances the possibility of the global minimum with minimised computational time, and in addition the evolving shapes during the iterative design process are easily captured in the level set equation. Moreover, since the optimization algorithm is transformed into a well-known transient analysis algorithm for differential equations, its numerical implementation becomes very simple and convenient. Despite the complex derivation processes and mathematical expressions, the obtained sensitivity formulas are very straightforward for numerical implementation. This book provides detailed explanation of the background theory and the derivation process, which will help readers understand the design method and will set the foundation for advanced research in the future.
Описание: Employs a method for solving electromagnetic problems, one which makes use of a transmission line matrix (TLM). This book includes chapters that present a treatment on plane wave correlations and decorrelations, and provide formulation of simulation to solve transient electromagnetic problems.
Автор: Pei-bai Zhou Название: Numerical Analysis of Electromagnetic Fields ISBN: 3642503217 ISBN-13(EAN): 9783642503214 Издательство: Springer Рейтинг: Цена: 13974.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Numerical methods for solving boundary value problems have developed rapidly. There are many books published that deal with various approximate methods such as the finite element method, the boundary element method and so on.
Описание: This thesis investigates the key characteristics of magnetless doubly salient machines, evaluates their design philosophies, and proposes new topologies for various applications. It discusses the background of and previous research on magnetless machines, while also outlining upcoming trends and potential future developments. The thesis begins by presenting various torque-improving structures – namely the multi-tooth structure, the double-rotor (DR) structure, the axial-field (AF) structure, and the flux-reversal (FR) structure – for magnetless machines. It subsequently addresses the idea of merging the design philosophies of two different machines to form new dual-mode machines. Thanks to a reconfigured winding arrangement and controllable DC-field excitation, the proposed machines can further extend their operating range to meet the extreme demands of applications in electric vehicles and wind power generation. Lastly, the thesis employs the finite element method (FEM) to thoroughly analyze the proposed machines’ key performance parameters and develops experimental setups to verify the proposed concepts.
Описание: Introduction.- Overview of magnetless doubly salient brushless machines.- Multi-tooth machines - Design and analysis.- Double-rotor machines - Design and analysis.- Proposed axial-field machine for range-extended electric vehicles.- Proposed flux-reversal dc-field machine for wind power generation.- Proposed dual-mode machine for wind power harvesting.- Proposed electronic-geared machine for electric vehicle applications.- Conclusion and recommendations.
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