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Electric Motors and Drives

Electric Motors and Drives Book
Author : Austin Hughes,Bill Drury
Publisher : Newnes
Release : 2019-08-04
ISBN : 0128189258
Language : En, Es, Fr & De

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Book Description :

Electric Motors and Drives: Fundamentals, Types and Applications, Fifth Edition is intended primarily for non-specialist users or students of electric motors and drives, but many researchers and specialist industrialists have also acknowledged its value in providing a clear understanding of the fundamentals. It bridges the gap between specialist textbooks (too analytical for the average user) and handbooks (full of detail but with little insight) providing an understanding of how each motor and drive system works. The fifth edition has been completely revised, updated and expanded. All of the most important types of motor and drive are covered, including d.c., induction, synchronous (including synchronous reluctance and salient Permanent Magnet), switched reluctance, and stepping. There has been significant innovation in this area since the fourth edition, particularly in the automotive, aircraft and industrial sectors, with novel motor topologies emerging, including hybrid designs that combine permanent magnet and reluctance effects. We now include a physical basis for understanding and quantifying torque production in these machines, and this leads to simple pictures that illuminate the control conditions required to optimise torque. The key converter topologies have been brought together, and the treatment of inverter switching strategies expanded. A new chapter is devoted to the treatment of Field Oriented control, reflecting its increasing importance for all a.c. motor drives. A unique physically-based approach is adopted which builds naturally on the understanding of motor behaviour developed earlier in the book: the largely non-mathematical treatment dispels much of the mystique surrounding what is often regarded as a difficult topic. Helps users acquire knowledge and understanding of the capabilities and limitations of motors and drives without struggling through unnecessary math and theory Presents updated material on the latest and most widely-used motors and drives, including brushless servo motors Includes additional diagrams and worked examples throughout this updated edition Includes a physical basis for the understanding and quantifying torque production

Electric Motors and Drives

Electric Motors and Drives Book
Author : Austin Hughes
Publisher : Elsevier
Release : 2013-10-22
ISBN : 148310527X
Language : En, Es, Fr & De

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Book Description :

Electric Motors and Drives: Fundamentals, Types and Applications provides information regarding the inner workings of motor and drive system. The book is comprised of nine chapters that cover several aspects and types of motor and drive systems. Chapter 1 discusses electric motors, and Chapter 2 deals with power electronic converters for motor drives. Chapter 3 covers the conventional d.c. motors, while Chapter 4 tackles inductions motors – rotating field, slip, and torque. The book also talks about the operating characteristics of induction motors, and then deals with the inverter-fed induction motor drives. The stepping motor systems; the synchronous, switched reluctance, and brushless d.c. drives; and the motor/drive selection are also covered. The text will be of great use to individuals who wish to familiarize themselves with motor and drive systems.

Energy Efficiency Improvements in Electric Motors and Drives

Energy Efficiency Improvements in Electric Motors and Drives Book
Author : Anibal de Almeida,Paolo Bertoldi,Werner Leonhard
Publisher : Springer Science & Business Media
Release : 2012-12-06
ISBN : 3642608329
Language : En, Es, Fr & De

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Book Description :

The reduction of energy consumption through improvements in energy efficiency has become an important goal for all countries, in order to improve the efficiency of the economy, to increase energy supply security, and to reduce the emissions of CO and other pollutants caused by power· generation. 2 Electric motors use over half of all electricity consumed in developed countries. Typically 60-80% of the electricity which is used in the industrial sector and about 35% of the electricity used in the commercial sector in the European Union is consumed by motors. In industry, a motor consumes an annual quantity of electricity which corresponds to approximately 5 times its purchase price, throughout its whole life of aroun~ 12 to 20 years. Motors are by far the most important type of electric load. They are used in all sectors and in a wide range of applications, namely the following: fans, compressors, pumps, mills, winders, elevators, transports, home appliances, and office equipment, etc. It is their wide use that makes motor drive systems one of the main targets to achieve significant energy savings. As motors are the largest USers of electrical energy, even small efficiency improvements will produce very large energy savings.

Control of Electric Motors and Drives Via Convex Optimization

Control of Electric Motors and Drives Via Convex Optimization Book
Author : Nicholas Moehle
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Electric motors and drives have been in common use for more than a century. Traditionally, alternating-current electric motors are driven by applying symmetric, multiphase sinusoidal voltage waveforms to their terminals. However, due to the wide availability of switching power converters as well as microcontrollers for controlling them, it is now possible to drive motors using specialized, nonsinusoidal waveforms, allowing us to design the drive voltage waveform along with the motor. This is one of our main points in this work: techniques and technologies now exist for controlling unconventional electric motors. We first consider optimal voltage and current waveform design for electric motors, then considers the design of feedback controllers for switched-mode power converters that could be used to implement these waveforms. First we give energy-optimal current waveforms for a permanent magnet synchronous motor that result in a desired average torque. Our formulation generalizes previous work by including a general back-EMF wave shape, voltage and current limits, an arbitrary phase winding connection, a simple eddy current loss model, and a trade-off between power loss and torque ripple. Determining the optimal current waveforms requires solving a convex optimization problem. We show how to use the alternating direction method of multipliers to find the optimal current in milliseconds or hundreds of microseconds, depending on the processor used, which allows the possibility of generating optimal waveforms in real time. We next present a method for finding current waveforms for induction motors that minimize resistive loss while achieving a desired average torque output. Our method is not based on reference-frame theory for electric machines, and therefore directly handles induction motors with asymmetric winding patterns, nonsinusoidally distributed windings, and a general winding connection. We do not explicitly handle torque ripple or voltage constraints. Our method is based on converting the torque control problem to a nonconvex linear-quadratic control problem, which can be solved by using a (tight) semidefinite programming relaxation. We then address the problem of finding current waveforms for a switched reluctance motor that minimize a user-defined combination of torque ripple and RMS current. The motor model we use is fairly general, and includes magnetic saturation, voltage and current limits, and highly coupled magnetics (and therefore, unconventional geometries and winding patterns). We solve this problem by approximating it as a mixed-integer convex program, which we solve globally using branch and bound. We demonstrate our approach on an experimentally verified model of a fully pitched switched reluctance motor, for which we find the globally optimal waveforms, even for high rotor speeds. After considering the motor design problem, we consider control of switched-mode power electronic converters. First we consider the theoretical problem of controlling general switched-affine dynamical systems i.e., the problem of selecting a sequence of affine dynamics from a finite set in order to minimize a sum of convex functions of the system state. We develop a new reduction of this problem to a mixed-integer convex program (MICP), based on perspective functions. Relaxing the integer constraints of this MICP results in a convex optimization problem, whose optimal value is a lower bound on the original problem value. We show that this bound is at least as tight as similar bounds obtained from two other well-known MICP reductions (via conversion to a mixed logical dynamical system, and by generalized disjunctive programming), and our numerical study indicates it is often substantially tighter. Finally, we consider the problem of controlling switched-mode power converters using model predictive control. Model predictive control requires solving optimization problems in real time, limiting its application to systems with small numbers of switches and a short horizon. We propose a technique for using off-line computation to approximate the model predictive controller. This is done by dividing the planning horizon into two segments, and using a quadratic function to approximate the optimal cost over the second segment. The approximate model predictive algorithm minimizes the true cost over the first segment, and the approximate cost over the second segment, allowing the user to adjust the computational requirements by changing the length of the first segment. We conclude with two simulated examples.

Electric Motors And Drives

Electric Motors And Drives Book
Author : Sheena Leith
Publisher : Unknown
Release : 2021-03-18
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

What is an electric motor and how does it work? Electricity Of Generator Which electric motor is best? Electric Stove Uses An Electric Motor What are an electric motor and its types? Electric Motor Diagram How much does an electric motor cost? This book completes with circuit diagrams and thorough explanations of the most common motor starting methods - and challenges. It has something to offer anyone keen to learn new things, while at the same time assisting practicing electrical engineers to design and implement reliable and functional motor starters.

Electric Drives and Electromechanical Systems

Electric Drives and Electromechanical Systems Book
Author : Richard Crowder
Publisher : Elsevier
Release : 2006-02-02
ISBN : 9780080492643
Language : En, Es, Fr & De

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Book Description :

The focus of this book on the selection and application of electrical drives and control systems for electromechanical and mechatronics applications makes it uniquely useful for engineers in industry working with machines and drives. It also serves as a student text for courses on motors and drives, and engineering design courses, especially within mechanical engineering and mechatronics degree programs. The criteria for motor-drive selection are explained, and the main types of drives available to drive machine tools and robots introduced. The author also provides a review of control systems and their application, including PLCs and network technologies. The coverage of machine tools and high-performance drives in smaller applications makes this a highly practical book focused on the needs of students and engineers working with electromechanical systems. * An invaluable survey of electric drives and control systems for electromechanical and mechatronics applications * Essential reading for electrical and mechanical engineers using motors and drives * An ideal electric motors and drives text for university courses including mechatronics

Practical Electric Motor Handbook

Practical Electric Motor Handbook Book
Author : Irving Gottlieb
Publisher : Elsevier
Release : 1997-08-21
ISBN : 9780080514390
Language : En, Es, Fr & De

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Book Description :

Experienced product designers are increasingly expected to be adept at incorporating a range of components into their designs. Students and experimenters too need to look beyond basic circuits and devices to achieve adequate design solutions. For those experienced in engineering design, this is the guide to electric motors. This book will allow engineers and designers to marry the technologies they know about with motor technology, and hence to incorporate motors into their products. Of the many good books on motors, such as Electric Motors and Drives by Hughes, none offer the engineering professional a tailored guide to motors taking into account their expertise. This book fills that gap. Irving Gottlieb is a leading author of many books for practising engineers, technicians and students of electronic and electrical engineering. Practical approach with minimum theory Covers a core area ignored by many electronics texts Shows how to incorporate motors into electronic products

Electric Motors and Drives Fundamentals

Electric Motors and Drives  Fundamentals Book
Author : Anonim
Publisher : Unknown
Release : 2005
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Electric Motors and Drives Fundamentals book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Electric Motors and Drives

Electric Motors and Drives Book
Author : Austin Hughes
Publisher : Elsevier
Release : 2005-12-14
ISBN : 9780080522043
Language : En, Es, Fr & De

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Book Description :

Electric Motors and Drives is intended for non-specialist users of electric motors and drives, filling the gap between theory-based academic textbooks and the more prosaic 'handbooks', which provide useful detail but little opportunity for the development of real insight and understanding. The book explores all of the widely-used modern types of motor and drive, including conventional and brushless D.C., induction motors and servo drives, providing readers with the knowledge to select the right technology for a given job. Austin Hughes' approach, using a minimum of maths, has established Electric Motors and Drives as a leading guide for engineers, and the key to a complex subject for a wider readership, including technicians, managers and students. Acquire essential practical knowledge of motors and drives, with a minimum of math and theory Updated material on the latest and most widely-used modern motors and drives New edition includes additional diagrams and worked examples throughout

Electric Drives Concepts Appl 2 E

Electric Drives  Concepts   Appl  2 E Book
Author : Vedam Subrahmanyam
Publisher : Tata McGraw-Hill Education
Release : 1996
ISBN : 9780070701991
Language : En, Es, Fr & De

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Book Description :

Download Electric Drives Concepts Appl 2 E book written by Vedam Subrahmanyam, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Electric Motors and Drives 5th Edition

Electric Motors and Drives  5th Edition Book
Author : Austin Hughes,Bill Drury
Publisher : Unknown
Release : 2019
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Electric Motors and Drives: Fundamentals, Types and Applications, Fifth Edition is intended primarily for non-specialist users or students of electric motors and drives, but many researchers and specialist industrialists have also acknowledged its value in providing a clear understanding of the fundamentals. It bridges the gap between specialist textbooks (too analytical for the average user) and handbooks (full of detail but with little insight) providing an understanding of how each motor and drive system works. The fifth edition has been completely revised, updated and expanded. All of the most important types of motor and drive are covered, including d.c., induction, synchronous (including synchronous reluctance and salient Permanent Magnet), switched reluctance, and stepping. There has been significant innovation in this area since the fourth edition, particularly in the automotive, aircraft and industrial sectors, with novel motor topologies emerging, including hybrid designs that combine permanent magnet and reluctance effects. We now include a physical basis for understanding and quantifying torque production in these machines, and this leads to simple pictures that illuminate the control conditions required to optimise torque. The key converter topologies have been brought together, and the treatment of inverter switching strategies expanded. A new chapter is devoted to the treatment of Field Oriented control, reflecting its increasing importance for all a.c. motor drives. A unique physically-based approach is adopted which builds naturally on the understanding of motor behaviour developed earlier in the book: the largely non-mathematical treatment dispels much of the mystique surrounding what is often regarded as a difficult topic. Helps users acquire knowledge and understanding of the capabilities and limitations of motors and drives without struggling through unnecessary math and theory Presents updated material on the latest and most widely-used motors and drives, including brushless servo motors Includes additional diagrams and worked examples throughout this updated edition Includes a physical basis for the understanding and quantifying torque production.

Electric Motor Drive Installation and Troubleshooting

Electric Motor Drive Installation and Troubleshooting Book
Author : Glen Mazur,William J. Weindorf
Publisher : Ingram
Release : 2008-04-01
ISBN : 9780826912527
Language : En, Es, Fr & De

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Book Description :

This newly revised edition presents the latest information on electric motors and motor drives in industry. It provides an overview of electric motor and drive theory, applications, installation, and troubleshooting. Specific topics covered include safety, drive programming, motor drive selection for specific applications, testing and start-up procedures. A wide spectrum of manufacturers and practical applications are represented in the text. Review questions and activities at the end of the each chapter provide a variety of assessment opportunities.

Electric Motors and Drives 4th Edition

Electric Motors and Drives  4th Edition Book
Author : Austin Hughes,William Drury
Publisher : Unknown
Release : 2013
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Electric Motors and Drives is intended for non-specialist users of electric motors and drives, filling the gap between maths- and theory-based academic textbooks and the more prosaic 'handbooks', which provide useful detail but little opportunity for the development of real insight and understanding. The book explores all of the widely-used modern types of motor and drive, including conventional and brushless D.C., induction motors and servo drives, providing readers with the knowledge to select the right technology for a given job. The third edition includes additional diagrams and worked examples throughout. New topics include digital interfacing and control of drives, direct torque control of induction motors and current-fed operation in DC drives. The material on brushless servomotors has also been expanded. Austin Hughes' approach, using a minimum of maths, has established Electric Motors and Drives as a leading guide for electrical engineers and mechanical engineers, and the key to a complex subject for a wider readership, including technicians, managers and students. Acquire knowledge of and understanding of the capabilities and limitations of motors and drives without struggling through unnecessary maths and theory Updated material on the latest and most widely-used modern motors and drives, including brushless servomotors New edition includes additional diagrams and worked examples throughout.

Electric Motors and Drives

Electric Motors and Drives Book
Author : Canadian Electricity Forum Inc
Publisher : Unknown
Release : 2006
ISBN : 9780978029562
Language : En, Es, Fr & De

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Book Description :

Download Electric Motors and Drives book written by Canadian Electricity Forum Inc, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Electric Motor Drives

Electric Motor Drives Book
Author : Ramu Krishnan
Publisher : Unknown
Release : 2015
ISBN : 9789332549715
Language : En, Es, Fr & De

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Book Description :

Download Electric Motor Drives book written by Ramu Krishnan, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Energy Effecient Electric Motors and Drives

Energy Effecient Electric Motors and Drives Book
Author : RCG/Hagler, Bailly, Inc,Energy Conservation and Effeciency Project,Development Research and Technological Planning Center (Cairo, Egypt),Tabbin Institute for Metallurgical Studies,Ittiḥād al-Ṣināʻāt al-Miṣrīyah
Publisher : Unknown
Release : 1991
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Energy Effecient Electric Motors and Drives book written by RCG/Hagler, Bailly, Inc,Energy Conservation and Effeciency Project,Development Research and Technological Planning Center (Cairo, Egypt),Tabbin Institute for Metallurgical Studies,Ittiḥād al-Ṣināʻāt al-Miṣrīyah, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Electric Motors

Electric Motors Book
Author : Jim Cox
Publisher : Special Interest Model
Release : 2006
ISBN : 9781854862464
Language : En, Es, Fr & De

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Book Description :

This practical workshop guide deals with the principles and characteristics of the wide range of motors likely to be used in small engineering workshops:Speed controlElectric brakingGeneratorsInstallationSafetySince the publication of the first edition, the book has become a well-established reference source on how motors behave and their applications. Over the years, a lot has happened in the field of motor design.This 2nd edition contains updated information about recent developments in motor types and their control systems, including the installation of VFD (Variable Frequency Drive Units). It also covers the operating differences between North American and European power systems.

Energy Efficiency Improvements in Electronic Motors and Drives

Energy Efficiency Improvements in Electronic Motors and Drives Book
Author : Paolo Bertoldi,Anibal T. de Almeida,Hugh Falkner
Publisher : Springer Science & Business Media
Release : 2012-12-06
ISBN : 3642597858
Language : En, Es, Fr & De

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Book Description :

The 1997 Kyoto Conference defined CO2 emISSIOn targets for the developed regions of the world. The EU target of decreasing the emissions 8% below the 1990 level, by 2010, will require a very substantial effort covering basically all activities if such a target is to be reached. Energy-efficient motor systems can provide one of the most important opportunities to achieve electricity savings in a cost effective way, avoiding at the same time the emission of tens of millions of tons of carbon. The reduction of energy consumption through improvements in energy efficiency is one of the major instruments for developed and developing countries to meet the Kyoto commitments. Energy efficiency is also a key element of the European Union (EU) energy policy, since it improves the efficiency of the economy, increases energy supply security, and decreases harmful emissions due to electricity generation. Electric motor systems use over half of all electricity consumed in developed countries. Typically about 70% of the electricity which is used in the industrial sector and about 35% of the electricity used in the commercial sector in the EU is consumed by motor systems. In industry, a motor on average consumes an annual quantity of electricity which corresponds to approximately 5 times its purchase price, throughout its whole life of around 12 to 20 years.

Power Electronics and Motor Drives

Power Electronics and Motor Drives Book
Author : Bogdan M. Wilamowski,J. David Irwin
Publisher : CRC Press
Release : 2018-10-03
ISBN : 1439802866
Language : En, Es, Fr & De

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Book Description :

The Industrial Electronics Handbook, Second Edition combines traditional and newer, more specialized knowledge that will help industrial electronics engineers develop practical solutions for the design and implementation of high-power applications. Embracing the broad technological scope of the field, this collection explores fundamental areas, including analog and digital circuits, electronics, electromagnetic machines, signal processing, and industrial control and communications systems. It also facilitates the use of intelligent systems—such as neural networks, fuzzy systems, and evolutionary methods—in terms of a hierarchical structure that makes factory control and supervision more efficient by addressing the needs of all production components. Enhancing its value, this fully updated collection presents research and global trends as published in the IEEE Transactions on Industrial Electronics Journal, one of the largest and most respected publications in the field. Power Electronics and Motor Drives facilitates a necessary shift from low-power electronics to the high-power varieties used to control electromechanical systems and other industrial applications. This volume of the handbook: Focuses on special high-power semiconductor devices Describes various electrical machines and motors, their principles of operation, and their limitations Covers power conversion and the high-efficiency devices that perform the necessary switchover between AC and DC Explores very specialized electronic circuits for the efficient control of electric motors Details other applications of power electronics, aside from electric motors—including lighting, renewable energy conversion, and automotive electronics Addresses power electronics used in very-high-power electrical systems to transmit energy Other volumes in the set: Fundamentals of Industrial Electronics Control and Mechatronics Industrial Communication Systems Intelligent Systems

Electric Motors and Control Systems

Electric Motors and Control Systems Book
Author : Frank Petruzella
Publisher : Career Education
Release : 2009-05-08
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

"This book will introduce the reader to a broad range of motor types and control systems. It provides an overview of electric motor operation, selection, installation, control and maintenance. The text covers Electrical Code references applicable to the installation of new control systems and motors, as well as information on maintenance and troubleshooting techniques. It includes coverage of how motors operate in conjunction with their associated control circuitry. Both older and newer motor technologies are examined. Topics covered range from motor types and controls to installing and maintaining conventional controllers, electronic motor drives and programmable logic controllers." -- Publisher's description.