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Books > Professional & Technical > Energy technology & engineering > Electrical engineering > Electric motors
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. The spiral vector theory provides superior computer simulations to AC circuits and machines, which are simple in structure and easy in use. The salient-pole AC generator is a good example for it.
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:
Other volumes in the set:
Smart Energy and Electric Power Systems: Current Trends and New Intelligent Perspectives reviews key applications of intelligent algorithms and machine learning techniques to increasingly complex and data-driven power systems with distributed energy resources to enable evidence-driven decision-making and mitigate catastrophic power shortages. The book reviews foundations towards the integration of machine learning and smart power systems before addressing key challenges and issues. The work then explores AI- and ML-informed techniques to rebalancing of supply and demand. Methods discussed include distributed energy resources and prosumer markets, electricity demand prediction, component fault detection, and load balancing. Security solutions are introduced, along with potential solutions to cyberattacks, security data detection and critical loads in power systems. The work closes with a lengthy discussion, informed by case studies, on integrating AI and ML into the modern energy sector.
Electric motors are the largest consumer of electric energy and they play a critical role in the growing market for electrification. Due to their simple construction, switched reluctance motors (SRMs) are exceptionally attractive for the industry to respond to the increasing demand for high-efficiency, high-performance, and low-cost electric motors with a more secure supply chain. Switched Reluctance Motor Drives: Fundamentals to Applications is a comprehensive textbook covering the major aspects of switched reluctance motor drives. It provides an overview of the use of electric motors in the industrial, residential, commercial, and transportation sectors. It explains the theory behind the operation of switched reluctance motors and provides models to analyze them. The book extensively concentrates on the fundamentals and applications of SRM design and covers various design details, such as materials, mechanical construction, and controls. Acoustic noise and vibration is the most well-known issue in switched reluctance motors, but this can be reduced significantly through a multidisciplinary approach. These methodologies are explained in two chapters of the book. The first covers the fundamentals of acoustic noise and vibration so readers have the necessary tools to analyze the problems and explains the surface waves, spring-mass models, forcing harmonics, and mode shapes that are utilized in modeling and analyzing acoustic noise and vibration. The second applies these fundamentals to switched reluctance motors and provides examples for determining the sources of any acoustic noise in switched reluctance motors. In the final chapter two SRM designs are presented and proposed as replacements for permanent magnet machines in a residential HVAC application and a hybrid-electric propulsion application. It also shows a high-power and compact converter design for SRM drives. Features: Comprehensive coverage of switched reluctance motor drives from fundamental principles to design, operation, and applications A specific chapter on electric motor usage in industrial, residential, commercial, and transportation applications to address the benefits of switched reluctance machines Two chapters address acoustic noise and vibration in detail Numerous illustrations and practical examples on the design, modeling, and analysis of switched reluctance motor drives Examples of switched reluctance motor and drive design
Plug-in hybrid electric vehicles (PHEVs) are being developed around the world, with much work aiming to optimise engine and battery for efficient operation, both during discharge and when grid electricity is available for recharging. However, the general expectation has been that the grid will not be greatly affected by the use of PHEVs because the recharging will occur during off-peak hours, or the number of vehicles will grow slowly enough so that capacity planning will respond adequately. This expectation does not consider that drivers will control the timing of recharging, and their inclination will be to plug in when convenient, rather than when utilities would prefer. It is important to understand the ramifications of adding load from PHEVs onto the grid. This book analyses the potential impacts of PHEVs on electricity demand, supply, generation structure, prices and associated emission levels.
This 8th Edition covers diagnosis and service of automotive suspension and steering systems. The Classroom Manual details theory and applications, while the Shop Manual focuses on real-world symptoms, diagnostics and repairs. Comprehensive coverage, up-to-date details and abundant illustrations make it an ideal resource to prepare for success as an automotive technician or pursue ASE certification. Updated with extensive information on new and emerging technology and techniques, including hybrid and electric vehicles, electronic power steering, new passenger tire HL sizing and computer-controlled suspensions and network diagnosis, the text aligns with area A4 of the ASE Education Foundation 2022 accreditation model, including job sheets correlated to specific MLR, AST and MAST tasks.
Updated with the latest technology, machines, and controls in the industry, ELECTRIC MOTOR CONTROL, 10E delivers comprehensive coverage and practical insight for anyone who will install, monitor, and/or maintain motor controls. Extremely reader friendly, the book begins by introducing the simplest of equipment and then helps you build on your knowledge as you learn step by step how to draw and interpret motor control schematic diagrams. Subsequent units offer detailed coverage of motor control components and how they are connected to form complete control circuits. The book ends with troubleshooting techniques that provide real-world practice.
In recent years vector-controlled a.c. drives have taken over from more conventional d.c. drives. Applications are found everywhere including machine tools, robotics, electric traction, and computer peripherals. This book presents a unified treatment of the two main high performance a.c. drive systems: sensorless vector-controlled drives and direct torque controlled drives. It also deals with the applications of artificial intelligence in drive systems and where possible space vector theory is used and the mathematics and physical analysis explained. Amongst the types of drive considered are induction motor drives and synchronous motor drives. However, torque-controlled switched reluctance motor drives are also covered owing to their increasing use and emerging importance. Also, the applications of artificial intelligence (fuzzy logic, neural nets, fuzzy-neural nets) are explained and AI's use in modeling and real control systems noted. This book is both comprehensive and self-contained and is suitable for a beginning postgraduate and industrial readership.
From reviews of the first edition:- ".... quality and qulaity of illustrations is noteworthy... a comprehensive and thought provoking summary of stepping motor technology. Times Higher Education Supplement. A general textbook on the use of stepping motors ... a comprehensive guide to the subject. Electronics and Power. Whenever repeated stop-start or incremental controlled motions are encountered, there are apllications for stepping motors. Their basic design and constructure make them enimently suitable for digital (microprocessor) control and they are consequently found in computer hardware- disk drives, printers, etc, in clocks, in numerically controlled machine books, and in domestic appliances. In this successful textbook, the authors take a practical approach to stepping motors, using many informative diagrams to explain their working principles, construction details, electronic controls, applications, and methods of maufacutre.
This book covers microprocessor-controlled power electronic drives, focusing in particular on the controol and use of low- and medium-power motors. Such drives have applications in the motion control of robots, computer peripherals, and numerically controlled machines.
The author's earlier book Electric Motors (Workshop Practice Series No. 16) described the basic principles of operation and methods of application of the wide range of motor types likely to be encountered in small application engineering. Although it included some practical information, it was mainly educational and this provoked many requests for more detailed practical information on popular workshop applications. This book provides this additional information. Detailed advice is given on how to identify and make good use of discarded and surplus motors from both domestic and industrial sources and also how to operate three phase motors from single phase supplies. Examples are given of actual workshop applications and conversions and, because many model engineers are interested in battery driven projects, sections are included on battery supplies and the use of motors in mobile projects.
An area of vehicle repairs that is something of a mystery to many mechanics, repairing alternators and starter motors is shown in step by step detail in this unique manual. Not only is this ideal for the garage professional, it also offers an opportunity for starting a new and highly profitable business, supplying reconditioned units to the public and garage trade as well as a full repair service if you wish. Truly a valuable publication that will pay for itself in the first repaired or reconditioned unit that you supply.
Stepping motor technology is well established and used for motion control, most notably for computer peripherals but also wherever digital control is employed. This book provides an introductory text which will enable the reader to both appreciate the essential characteristics of stepping motor systems and understand how these characteristics are being exploited in the continuing development of new motors, drives and controllers. A basic theoretical approach relating to the more significant aspects of performance is presented, although it is assumed throughout that the reader has no previous experience of electrical machines and is primarily interested in the applications of stepping motors. Paul Acarnley's outstanding reference book is widely known and used, and this, the 4th edition, has been significantly updated to include many new applications that have emerged since the previous edition was published. Coverage includes: drive circuits, accurate load positioning, static torque characteristics, multi-step operation, torque/ speed characteristics, high-speed operation, open-loop control, closed-loop control and microprocessor-based stepping motor systems.
This book is a comprehensive reference source for practicing
engineers and students specializing in electric power engineering
and industrial electronics. It will illustrate the state of the art
in induction motors. Beginning with characteristics and basic
dynamic models of induction motors, and progressing to low- and
high- performance drive systems. The book will be rich in useful
information, without an excessive mathematical burden. Computer
simulations resulting in mock oscillograms of physical quantities
are used for illustration of basic control concepts.
*A complete, definitive source for the design, manufacture, application, and testing of small electric motors less than ten horsepower
Users of small electric motors face the difficult task of selecting the best motor for their particular drive application. The technical requirements of the drive, the level of safety needed and the cost factor must all be considered. The choice is made more difficult by the continuous arrival of newly developed types of motor. This book, a translation from German, aims to help those involved in specifying, developing, manufacturing and marketing small motors by reporting the current state of the art. The various types of motor, together with their differing characteristics and their relationship to small drives are covered. Developments such as brushless DC motors and stepper motors are discussed, as well as the use of electronic control which widens the spectrum of small motor applications. Also covered are measurement and noise problems. This book will be of interest to engineers, physicists and technicians involved in the design, manufacture and application of small motors in the laboratory, the factory and in service.
This book is intended to explain the technical principles involved in the many AC variable speed drive systems available today. It deals with all the DC link inverter and direct AC to AC converter systems that are in commercial use. The principles of AC motors are considered specifically from the variable frequency point of view, and this chapter concentrates on the effects of harmonics. The different types of power semiconductor switches are considered separately from the drive systems in which they are used. A total of seven separate and technically different drive systems are considered in such a way that their principles can be fully understood and their performance capabilities explained. Square wave and pulse width modulated DC link inverter systems, cycloconverters and slip power recovery drives are all included in this comprehensive book. This book has been written so that it can be understood by general engineers, not just by experts in the field. It should therefore be of great use to any engineer involved with variable speed drives in any capacity. It should also be of interest to university and college electrical engineering departments and students.
"An advanced introduction to the simulation and hardware implementation of BLDC motor drives" A thorough reference on the simulation and hardware implementation of BLDC motor drives, this book covers recent advances in the control of BLDC motor drives, including intelligent control, sensorless control, torque ripple reduction and hardware implementation. With the guidance of the expert author team, readers will understand the principle, modelling, design and control of BLDC motor drives. The advanced control methods and new achievements of BLDC motor drives, of interest to more advanced readers, are also presented. Focuses on the control of PM brushless DC motors, giving readers the foundations to the topic that they can build on through more advanced readingSystematically guides readers through the subject, introducing basic operational principles before moving on to advanced control algorithms and implementationsCovers special issues, such as sensorless control, intelligent control, torque ripple reduction and hardware implementation, which also have applications to other types of motorsIncludes presentation files with lecture notes and Matlab 7 coding on a companion website for the book
Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product.A fully up-to-date, hands-on guide to electric motorsKeep electric motors running at peak performance! Electric Motor Maintenance and Troubleshooting, Second Edition explains in detail how all types of AC and DC motors work. Essential for anyone who needs to buy, install, troubleshoot, maintain, or repair small to industrial-size electric motors, this practical guide contains new information on three-phase motors along with coverage of the latest test instruments. Drawing on his more than 40 years of experience working with electric motors, expert author Augie Hand provides a wealth of tested procedures to pinpoint and correct any kind of issue. He'll help you decide whether to replace a motor, take it offline for repair, or repair it in place--decisions that can reduce down time. End-of-chapter questions reinforce the material covered in the book. Quickly and accurately diagnose electric motor problems and find effective solutions with help from this fully updated classic. Electric Motor Maintenance and Troubleshooting, Second Edition covers: Troubleshooting and testing DC machines AC electric motor theory Single-phase motors Three-phase induction motors Troubleshooting less common motors, including synchronous, two-speed one-winding, and multispeed Test instruments and services |
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