Permanent Magnet DC Linear Motors

Permanent Magnet DC Linear Motors

This book has been designed to be useful to two main categories of readers, namely, electrical and mechanical engineers in the user industries, and post-graduates and students embracing mechanical and electrical engineers.

Author: Amitava Basak

Publisher: Clarendon Press

ISBN: 9780191589249

Category: Electric motors, Linear

Page: 200

View: 627

No standard work of reference, dealing with dc linear motor in all its aspects has ever been published. However, a considerable amount of literature in the form of published papers dealing with this subject, and also an amount of hitherto unpublished work, particularly of an industrial or applied nature, has been accumulated during the last 25 years. An attempt has been made to collate all this information and present it in a comprehensive and orderly manner in this unique volume. This book has been designed to be useful to two main categories of readers, namely, electrical and mechanical engineers in the user industries, and post-graduates and students embracing mechanical and electrical engineers.
Categories: Electric motors, Linear

Permanent Magnet Synchronous and Brushless DC Motor Drives

Permanent Magnet Synchronous and Brushless DC Motor Drives

R. Hanitsch and R. C. Okonkwo, On the design of brushless DC linear motors with permanent magnets, PCIM '99. Europe. Official Proceedings of the Thirty-Fifth International Intelligent Motion Conference, pp. 183–187, 1999. 172.

Author: Ramu Krishnan

Publisher: CRC Press

ISBN: 9781420014235

Category: Technology & Engineering

Page: 611

View: 840

Despite two decades of massive strides in research and development on control strategies and their subsequent implementation, most books on permanent magnet motor drives still focus primarily on motor design, providing only elementary coverage of control and converters. Addressing that gap with information that has largely been disseminated only in journals and at conferences, Permanent Magnet Synchronous and Brushless DC Motor Drives is a long-awaited comprehensive overview of power electronic converters for permanent magnet synchronous machines and control strategies for variable-speed operation. It introduces machines, power devices, inverters, and control, and addresses modeling, implementation, control strategies, and flux weakening operations, as well as parameter sensitivity, and rotor position sensorless control. Suitable for both industrial and academic audiences, this book also covers the simulation, low cost inverter topologies, and commutation torque ripple of PM brushless DC motor drives. Simulation of the motor drives system is illustrated with MATLAB® codes in the text. This book is divided into three parts—fundamentals of PM synchronous and brushless dc machines, power devices, inverters; PM synchronous motor drives, and brushless dc motor drives. With regard to the power electronics associated with these drive systems, the author: Explores use of the standard three-phase bridge inverter for driving the machine, power factor correction, and inverter control Introduces space vector modulation step by step and contrasts with PWM Details dead time effects in the inverter, and its compensation Discusses new power converter topologies being considered for low-cost drive systems in PM brushless DC motor drives This reference is dedicated exclusively to PM ac machines, with a timely emphasis on control and standard, and low-cost converter topologies. Widely used for teaching at the doctoral level and for industrial audiences both in the U.S. and abroad, it will be a welcome addition to any engineer’s library.
Categories: Technology & Engineering

Modern Electric Vehicle Technology

Modern Electric Vehicle Technology

Permanent magnet d.c. linear motors ( 1996 ) Amitava Basak 41. Vector control and dynamics of a.c. drives ( 1996 ) D.W. Novotny and T.A. Lipo 42. Sensorless vector and direct torque control ( 1998 ) Peter Vas 43.

Author: C. C. Chan

Publisher: Oxford University Press on Demand

ISBN: 0198504160

Category: Education

Page: 300

View: 710

A comprehensive and up-to-date reference book on modern electric vehicle technology, which covers the engineering philosophy, state-of-the-art technology, and commercialisation of electrical vehicles.
Categories: Education

Permanent Magnet Synchronous and Brushless DC Motor Drives

Permanent Magnet Synchronous and Brushless DC Motor Drives

This book is divided into three parts—fundamentals of PM synchronous and brushless dc machines, power devices, inverters; PM synchronous motor drives, and brushless dc motor drives.

Author: Ramu Krishnan

Publisher: CRC Press

ISBN: 9781351837378

Category: Technology & Engineering

Page: 611

View: 191

Despite two decades of massive strides in research and development on control strategies and their subsequent implementation, most books on permanent magnet motor drives still focus primarily on motor design, providing only elementary coverage of control and converters. Addressing that gap with information that has largely been disseminated only in journals and at conferences, Permanent Magnet Synchronous and Brushless DC Motor Drives is a long-awaited comprehensive overview of power electronic converters for permanent magnet synchronous machines and control strategies for variable-speed operation. It introduces machines, power devices, inverters, and control, and addresses modeling, implementation, control strategies, and flux weakening operations, as well as parameter sensitivity, and rotor position sensorless control. Suitable for both industrial and academic audiences, this book also covers the simulation, low cost inverter topologies, and commutation torque ripple of PM brushless DC motor drives. Simulation of the motor drives system is illustrated with MATLAB® codes in the text. This book is divided into three parts—fundamentals of PM synchronous and brushless dc machines, power devices, inverters; PM synchronous motor drives, and brushless dc motor drives. With regard to the power electronics associated with these drive systems, the author: Explores use of the standard three-phase bridge inverter for driving the machine, power factor correction, and inverter control Introduces space vector modulation step by step and contrasts with PWM Details dead time effects in the inverter, and its compensation Discusses new power converter topologies being considered for low-cost drive systems in PM brushless DC motor drives This reference is dedicated exclusively to PM ac machines, with a timely emphasis on control and standard, and low-cost converter topologies. Widely used for teaching at the doctoral level and for industrial audiences both in the U.S. and abroad, it will be a welcome addition to any engineer’s library.
Categories: Technology & Engineering

Intelligent Computer Techniques in Applied Electromagnetics

Intelligent Computer Techniques in Applied Electromagnetics

Permanent. Magnet. Linear. Motor. Tomczuk Bronisław and Waindok Andrzej Abstract The magnetic field integral ... Basak A., Permanent-Magnet DC Linear Motors, Oxford, Clarendon Press, Integral Parameters of the Magnetic Field in the ...

Author: Slawomir Wiak

Publisher: Springer Science & Business Media

ISBN: 9783540784890

Category: Mathematics

Page: 304

View: 809

This book contains papers presented at the International Symposium on Elect- magnetic Fields in Mechatronics, Electrical and Electronic Engineering ISEF’07 which was held in Prague, the Czech Republic, from September 13 to 15, 2007. ISEF conferences have been organized since 1985 and from the very beginning it was a common initiative of Polish and other European researchers who have dealt with electromagnetic ?eld in electrical engineering. The conference travels through Europe and is organized in various academic centres. Relatively often, it was held in some Polish city as the initiative was on the part of Polish scientists. Now ISEF is much more international and successive events take place in different European academic centres renowned for electromagnetic research. This time it was Prague, famous for its beauty and historical background, as it is the place where many c- tures mingle. The venue of the conference was the historical building of Charles University, placed just in the centre of Prague. The Technical University of Prague, in turn, constituted the logistic centre of the conference. It is the tradition of the ISEF meetings that they try to tackle quite a vast area of computational and applied electromagnetics. Moreover, the ISEF symposia aim at combining theory and practice; therefore the majority of papers are deeply rooted in engineering problems, being simultaneously of a high theoretical level.
Categories: Mathematics

Nonlinear Electromagnetic Systems

Nonlinear Electromagnetic Systems

Introduction The first permanent magnet d.c. linear motor was developed in the early seventies , but due to the unavailability of suitable permanent magnets no further research work was reported for ten years .

Author: A. J. Moses

Publisher: IOS Press

ISBN: 9051992513

Category: Technology & Engineering

Page: 964

View: 497

The book covers classical and practical approaches to electromagnetic field solutions in magnetic devices. The following topics are addressed: Advanced computional techniques; Intelligent computer aided design; Magnetic materials; Inverse problems; Magnetic sensors and transducers; Performance and optimisation of devices; Applications to electronic systems; Modelling of non-linear systems and other related topics. This volume presents 200 of the best articles presented at the International Symposium on Non-Linear Electromagnetic Systems (ISEM in Cardiff, Wales). The previous ISEM papers were published in the successful volume Advanced Computational and Design Techniques in Applied Electromagnetic Systems (by Elsevier).Main chapters in this book are: Electromagnetic Devices: Non-linearities at contacts and interfaces in semiconductor structures by R.H. Williams as key-note. Optimisation, Inverse and Biological Studies: Power loss testing; intelligent computation of optimization of metal cutting; grid methods for CFD and CEM. Magnetic Materials: Materials for circuit semilator applications; rotational magnetostriction. Computational Techniques and Modelling: Electromagnetic device design; soft magnetic materials; engineering application of artificial intelligence. Sensors and Non-destructive Testing: Eddy current nondestructive evaluation; nonlinear magnetoresistance; micro magnetic sensor. Electronic and Electrical Applications: Non-linear transistor parameters; superconducting magnets.
Categories: Technology & Engineering

Handbook of Research on Green Engineering Techniques for Modern Manufacturing

Handbook of Research on Green Engineering Techniques for Modern Manufacturing

Optimum shape design of single-sided linear induction motors using response surface methodology and finite element method. Paper presented at the Electrical Machines and ... Design and performance of permanent-magnet DC linear motors.

Author: Uthayakumar, M.

Publisher: IGI Global

ISBN: 9781522554462

Category: Technology & Engineering

Page: 403

View: 936

Green manufacturing has developed into an essential aspect of contemporary manufacturing practices, calling for environmentally friendly and sustainable techniques. Implementing successful green manufacturing processes not only improves business efficiency and competitiveness but also reduces harmful production in the environment. The Handbook of Research on Green Engineering Techniques for Modern Manufacturing provides emerging perspectives on the theoretical and practical aspects of green industrial concepts, such as green supply chain management and reverse logistics, for the sustainable utilization of resources and applications within manufacturing and engineering. Featuring coverage on a broad range of topics such as additive manufacturing, integrated manufacturing systems, and machine materials, this publication is ideally designed for engineers, environmental professionals, researchers, academicians, managers, policymakers, and graduate-level students seeking current research on recent and sustainable practices in manufacturing processes.
Categories: Technology & Engineering

ELECTRICAL ENGINEERING Volume III

ELECTRICAL ENGINEERING     Volume III

The Linear Permanent Magnet Brushless Synchronous Motor (LPMSM) 5. The Variable Reluctance Linear Motor Glossary Bibliography Biographical Sketches Summary A conventional DC motor has brushes and commutators that are not reliable and ...

Author: Wong Kit Po

Publisher: EOLSS Publications

ISBN: 9781905839797

Category:

Page: 466

View: 236

Electrical Engineering is the component of Encyclopedia of Physical Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. The Theme on Electrical Engineering with contributions from distinguished experts in the field provides the essential aspects and fundamentals of electrical engineering. These three volumes are aimed at the following five major target audiences: University and College Students Educators, Professional Practitioners, Research Personnel and Policy Analysts, Managers, and Decision Makers, NGOs and GOs.
Categories:

Power Transmission and Motion Control PTMC 2002

Power Transmission and Motion Control  PTMC 2002

REFERENCES ( 1 ) A. Basak , Permanent - Magnet DC Linear Motors , Oxford , UK : Clarendon , 1996 . ( 2 ) A. Rouvinen , S. Arola , T. Hammarberg , A. Mikkola , H. Handroos , " Virtual prototyping of mobile machines , state - of - the ...

Author: Clifford R. Burrows

Publisher: John Wiley & Sons

ISBN: 1860583792

Category: Technology & Engineering

Page: 390

View: 384

The latest research on power transmission systems Power Transmission and Motion Control is a collection of papers showcased at the 2002 PTMC conference at the University of Bath. Representing the work of researchers and industry leaders from around the world, this book features the latest developments in power transmission media and systems, with an emphasis on pneumatic and hydraulic devices and systems. Insight into current projects on the forefront of technology and innovation provides an overview of the current state of the field while informing ongoing work and suggesting direction for future projects.
Categories: Technology & Engineering

Hillier s Fundamentals of Automotive Electronics

Hillier s Fundamentals of Automotive Electronics

6.2 Linear motors At first sight this appears to be similar to a solenoid ; the difference is that the linear d.c. motor uses a powerful permanent magnet to increase the magnetic action . In view of this , a near - constant force over a ...

Author: V. A. W. Hillier

Publisher: Nelson Thornes

ISBN: 0748726950

Category: Juvenile Nonfiction

Page: 408

View: 341

Adapted and expanded to meet all the requirements of motor vehicle NVQs at levels 2 and 3, this book includes numerous features to help the student learn, and relates theory to workplace practice.
Categories: Juvenile Nonfiction

Mechanisms and Mechanical Devices Sourcebook 5th Edition

Mechanisms and Mechanical Devices Sourcebook  5th Edition

9 A magnetic sensor as a rotor position indicator: stationary brushless motor winding (1), permanent-magnet motor rotor ... A permanent-magnet DC linear motor is similar to a permanent-magnet rotary motor, and an AC induction squirrel ...

Author: Neil Sclater

Publisher: McGraw Hill Professional

ISBN: 9780071704410

Category: Technology & Engineering

Page: 560

View: 893

THOUSANDS OF DRAWINGS AND DESCRIPTIONS COVER INNOVATIONS IN MECHANICAL ENGINEERING Fully revised throughout, this abundantly illustrated reference describes proven mechanisms and mechanical devices. Each illustration represents a design concept that can easily be recycled for use in new or modified mechanical, electromechanical, or mechatronic products. Tutorials on the basics of mechanisms and motion control systems introduce you to those subjects or act as a refresher. Mechanisms and Mechanical Devices Sourcebook, Fifth Edition, contains new chapters on mechanisms for converting renewable energy into electrical power, 3D digital prototyping and simulation, and progress in MEMS and nanotechnology based on carbon nanotubes. A new chapter on stationary and mobile robots describes their roles in industry, science, national defense, and medicine. The latest advances in rapid prototyping are also discussed. This practical guide will get you up to speed on many classical mechanical devices as well as the hot new topics in mechanical engineering. COMPREHENSIVE INDEX MAKES IT EASY TO FIND SUBJECTS OF INTEREST GLOSSARIES OF TERMS ON: CAMS, GEARS, MECHANICS, MOTION CONTROL, ROBOTICS, WIND TURBINES, PUMPS, AND 3D DIGITAL PROTOTYPING AND SIMULATION COVERAGE OF MOBILE ROBOTS THAT EXPLORE MARS, PERFORM MILITARY DUTIES AND PUBLIC SERVICE, HANDLE AUTOMATED DELIVERY, CONDUCT SURVEILLANCE FROM THE AIR, AND SEARCH UNDER THE SEA DETAILS ON THE MECHANISMS IN RENEWABLE-ENERGY AND WIND-TURBINE AND SOLAR-THERMAL FARMS AND WAVE-MOTION POWER PLANTS Mechanisms and Mechanical Devices Sourcebook, Fifth Edition, covers: Basics of mechanisms * Motion control systems * New stationary and mobile robots * New mechanisms for renewable power generation * Drives and mechanisms with linkages, gears, cams, genevas, and ratchets * Clutches and brakes * Latching, fastening, and clamping devices and mechanisms * Chains, belts, springs, and screws * Shaft couplings and connections * Motion-specific devices * Packaging, conveying, handling, and safety mechanisms and machines * Torque, speed, tension, and limit control systems * Instruments and controls: pneumatic, hydraulic, electric, and electronic * New 3D digital prototyping and simulation techniques * New rapid prototyping methods * New directions in mechanical engineering
Categories: Technology & Engineering

Mechanisms and Mechanical Devices Sourcebook Fourth Edition

Mechanisms and Mechanical Devices Sourcebook  Fourth Edition

9 A magnetic sensor as a rotor position indicator: stationary brushless motor winding (1), permanent-magnet motor rotor ... A permanent-magnet DC linear motor is similar to a permanent-magnet rotary motor, and an AC induction squirrel ...

Author: Neil Sclater

Publisher: McGraw Hill Professional

ISBN: 9780071709491

Category: Technology & Engineering

Page: 512

View: 133

Over 2000 drawings make this sourcebook a gold mine of information for learning and innovating in mechanical design The fourth edition of this unique engineering reference book covers the past, present, and future of mechanisms and mechanical devices. Among the thousands of proven mechanisms illustrated and described are many suitable for recycling into new mechanical, electromechanical, or mechatronic products and systems. Overviews of robotics, rapid prototyping, MEMS, and nanotechnology will get you up-to-speed on these cutting-edge technologies. Easy-to-read tutorial chapters on the basics of mechanisms and motion control will introduce those subjects to you or refresh your knowledge of them. Comprehensive index to speed your search for topics of interest Glossaries of terms for gears, cams, mechanisms, and robotics New industrial robot specifications and applications Mobile robots for exploration, scientific research, and defense INSIDE Mechanisms and Mechanical Devices Sourcebook, 4th Edition Basics of Mechanisms • Motion Control Systems • Industrial Robots • Mobile Robots • Drives and Mechanisms That Include Linkages, Gears, Cams, Genevas, and Ratchets • Clutches and Brakes • Devices That Latch, Fasten, and Clamp • Chains, Belts, Springs, and Screws • Shaft Couplings and Connections • Machines That Perform Specific Motions or Package, Convey, Handle, or Assure Safety • Systems for Torque, Speed, Tension, and Limit Control • Pneumatic, Hydraulic, Electric, and Electronic Instruments and Controls • Computer-Aided Design Concepts • Rapid Prototyping • New Directions in Mechanical Engineering
Categories: Technology & Engineering

Robot Mechanisms and Mechanical Devices Illustrated

Robot Mechanisms and Mechanical Devices Illustrated

Linear Servomotors A linear motor is essentially a rotary motor that has been opened out into a flat plane, but it operates on the same principles. A permanent-magnet DC linear motor is similar to a permanent-magnet rotary motor, ...

Author: Paul Sandin

Publisher: McGraw Hill Professional

ISBN: 9780071429283

Category: Technology & Engineering

Page: 350

View: 490

* Covers virtually everything related to mobile robots--destined to become THE definitive work on robot mechanisms * Discusses the manipulators, grippers, and mechanical sensors used in mobile robotics * Includes never before compiled material on high-mobility suspension and drivetrains * Motor control section is written for those who don't have an advanced electrical understanding * A must read for anyone interested in the field of high-mobility vehicles
Categories: Technology & Engineering

A Sensorless Positioning System for Linear DC Motor

A Sensorless Positioning System for Linear DC Motor

Removing this sensor from the system reduces the overall system cost, thus encouraging more development and application of linear motors. This research and study proposes a sensorless positioning system for linear DC motor (LDM).

Author: Ezril Hisham Mat Saat

Publisher:

ISBN: OCLC:975162302

Category: Electric driving

Page: 234

View: 597

In recent years, linear motor has gained popularity as linear motion drive in industry and factory automation which provides an alternative to conventional rotary motor. This development was encouraged by the advantages offered by linear motors such as flexibility in size and design, clean and silent operation, ease of maintenance and deliver high performance for applications requiring linear motion. However, the main constraint for system designers to consider linear motors in their application is the cost for every complete package of linear motor. Generally, linear motors are expensive than their counterparts due to the number of permanent magnet used in the motors and the sensory technologies used for positioning system. Linear motors provide direct linear motion and normally are designed with specific length which requires more permanent magnets than rotary motor. Therefore, the costs of linear motors increase with the length of the motor itself. For a typical linear motor driver, a positioning sensor, usually attached to the motor, provides feedback positioning signal to the controller. This sensor is expensive and normally has the same length with the motor. The price for this type of sensor increases with the size, which eventually increase the cost of linear motors. For some applications, where positioning is not too critical such as robot end gripper, the high precision and expensive positioning sensor is not necessary. Removing this sensor from the system reduces the overall system cost, thus encouraging more development and application of linear motors. This research and study proposes a sensorless positioning system for linear DC motor (LDM). The ideas to control the position of the LDM are by controlling the current supplied to the motor. The technique used to control the current is by manipulating Pulse Width Modulation (PWM) signal which is generated by a microcontroller circuit based on Atmel AVR ATmega8535 processor. A simple model of LDM was constructed for experimental purposes. A mechanical spring was used in the motor design to absorb the force produced by the motor. The displacement of the spring will then be used to determine the position of the motor. Due to the harmonic oscillation produced in mass-spring system, the position of the motor oscillates before reaching the final desired position. In order to eliminate the harmonic oscillation effect, a few variants pattern of PWM signals are used to drive the motor. These variant patterns are single stage, dual stage, triple stage and quadruple stage. The variant patterns of PWM signals were created by combining multiple values of duty cycle running in a single PWM signal. A mathematical model for constructed LDM has been derived based on damped force oscillation of mass spring system theory. The equation of motion for LDM is then simulated using Matlab software. The time response of the system based on simulation results has been studied and proper adjustment to control parameters has been made to improve the rise time, overshoot percentage and steady state error. The adjusted driving parameters are then transferred to microcontroller unit for actual laboratory experiment. The objective of this research to develop a sensorless positioning system for LDM which include a motor driver and control approach was successfully achieved. Comparison between simulation results and laboratory experiment shows almost identical results. Linear relation between motor position and timing parameters used in control algorithms has been studied and linear equations have been derived. These linear equations will be converted into microprocessor programming as feed-forward control algorithms. Any desired motor position can be fed into the system and microprocessor unit will generates a proper PWM driving signal to the motor. The developed system can be used for any low cost applications which do not require precise positioning.
Categories: Electric driving

Linear Synchronous Motors

Linear Synchronous Motors

Linear motor. US4703297. Nagasaka N. (1987). Permanent magnet type linear electromagnetic actuator. US4749921. ... Integrated linear synchronous unipolar motor with controlled permanent magnet bias. ... Brushless DC linear motor.

Author: Jacek F. Gieras

Publisher: CRC Press

ISBN: 9781351833448

Category: Technology & Engineering

Page: 520

View: 852

Considered to be the first book devoted to the subject, Linear Synchronous Motors: Transportation and Automation Systems, Second Edition evaluates the state of the art, demonstrating the technological innovations that are improving the design, construction, and performance of modern control systems. This new edition not only illustrates the development of linear synchronous motor drives, but it also discusses useful techniques for selecting a motor that will meet the specific requirements of linear electrical drives. New Features for the Second Edition: Several updated and expanded sections, as well as two new chapters on FEM Even more numerical examples, calculations, and mathematical models Broadened target audience that includes researchers, scientists, students, and more Evaluating trends and practical techniques for achieving optimal system performance, the authors showcase ready-to-implement solutions for common roadblocks in this process. The book presents fundamental equations and calculations used to determine and evaluate system operation, efficiency, and reliability, with an exploration of modern computer-aided design of linear synchronous motors, including the finite element approach. It covers topics such as linear sensors and stepping motors, magnetic levitation systems, elevators, and factory automation systems. It also features case studies on flat PM, tubular PM, air-cored, and hybrid linear synchronous motors, as well as 3D finite element method analysis of tubular linear reluctance motors, and linear oscillatory actuators. With such an exceptional presentation of practical tools and conceptual illustrations, this volume is an especially powerful resource. It will benefit readers from all walks by providing numerical examples, models, guidelines, and diagrams to help develop a clear understanding of linear synchronous motor operations, characteristics, and much more.
Categories: Technology & Engineering

Linear Electric Machines Drives and MAGLEVs Handbook

Linear Electric Machines  Drives  and MAGLEVs Handbook

PMs are hard magnetic materials with a huge hysteresis cycle [large B r (H = 0) and • H PMs c (B are = 0)]; magnetized μre coil≈ (1.05 in ... A. Basak, Permanent Magnet DC Linear Motors, Oxford University Press, Oxford, U.K., 1996.

Author: Ion Boldea

Publisher: CRC Press

ISBN: 9781439845158

Category: Technology & Engineering

Page: 646

View: 338

Based on author Ion Boldea’s 40 years of experience and the latest research, Linear Electric Machines, Drives, and Maglevs Handbook provides a practical and comprehensive resource on the steady improvement in this field. The book presents in-depth reviews of basic concepts and detailed explorations of complex subjects, including classifications and practical topologies, with sample results based on an up-to-date survey of the field. Packed with case studies, this state-of-the-art handbook covers topics such as modeling, steady state, and transients as well as control, design, and testing of linear machines and drives. It includes discussion of types and applications—from small compressors for refrigerators to MAGLEV transportation—of linear electric machines. Additional topics include low and high speed linear induction or synchronous motors, with and without PMs, with progressive or oscillatory linear motion, from topologies through modeling, design, dynamics, and control. With a breadth and depth of coverage not found in currently available references, this book includes formulas and methods that make it an authoritative and comprehensive resource for use in R&D and testing of innovative solutions to new industrial challenges in linear electric motion/energy automatic control.
Categories: Technology & Engineering

Permanent Magnet Materials and Their Application

Permanent Magnet Materials and Their Application

A major market for permanent magnet d.c. motors is in automobiles , where cost usually overrides any performance ... electrical energy into mechanical energy , they may either provide torque in a rotary system , or linear force .

Author: Peter Campbell

Publisher: Cambridge University Press

ISBN: 0521566886

Category: Science

Page: 207

View: 623

Comprehensive design text for permanent magnets and their application.
Categories: Science

Electromagnetic Linear Machines with Dual Halbach Array

Electromagnetic Linear Machines with Dual Halbach Array

Asama J, Hamasaki Y, Oiwa T et al (2013) Proposal and analysis of a novel single-drive bearingless motor. ... Howe D, Bolte E et al (1993) Instantaneous magnetic field distribution in brushless permanent magnet DC motors, ...

Author: Liang Yan

Publisher: Springer

ISBN: 9789811023095

Category: Mathematics

Page: 125

View: 641

This book extends the conventional two-dimensional (2D) magnet arrangement into 3D pattern for permanent magnet linear machines for the first time, and proposes a novel dual Halbach array. It can not only effectively increase the radial component of magnetic flux density and output force of tubular linear machines, but also significantly reduce the axial flux density, radial force and thus system vibrations and noises. The book is also the first to address the fundamentals and provide a summary of conventional arrays, as well as novel concepts for PM pole design in electric linear machines. It covers theoretical study, numerical simulation, design optimization and experimental works systematically. The design concept and analytical approaches can be implemented to other linear and rotary machines with similar structures. The book will be of interest to academics, researchers, R&D engineers and graduate students in electronic engineering and mechanical engineering who wish to learn the core principles, methods, and applications of linear and rotary machines.
Categories: Mathematics

Actuators for Control

Actuators for Control

1.3 APPLICATION Special features of all the types of linear motors described in the previous sections are put together ... This linear DC motor is configured of a permanent magnet , a moving coil ( 2 phase coil ) , a yoke etc. , and is ...

Author: Funakubo

Publisher: CRC Press

ISBN: 288124694X

Category: Technology & Engineering

Page: 448

View: 591

Originally published in Japanese in 1984 (Sangyo Tosho KK, Tokyo) this translation of advanced Japanese research provides a concise description of the design, manufacture, and applications of various actuators used in modern control systems. Miniature linear motors, hydraulic and pneumatic actuators, servo motors, AC and DC control motors, and stepping motors are discussed by leading Japanese researchers, while the volume concludes with a forward-looking examination of the actuators of the future--bio-engines and those utilizing functional materials. For postgraduate and research engineers and machinery system design and manufacturing engineers in industry. Book club price, $172. Annotation copyrighted by Book News, Inc., Portland, OR
Categories: Technology & Engineering

Electric Power Generation Transmission and Distribution

Electric Power Generation  Transmission  and Distribution

Linear electric motors can be classified as follows: • DC motors • Induction motors • Synchronous motors, ... The most popular are permanent magnet (PM) linear synchronous motors (LSMs) and linear induction motors (LIMs), ...

Author: Leonard L. Grigsby

Publisher: CRC Press

ISBN: 9781439856376

Category: Technology & Engineering

Page: 789

View: 180

Featuring contributions from worldwide leaders in the field, the carefully crafted Electric Power Generation, Transmission, and Distribution, Third Edition (part of the five-volume set, The Electric Power Engineering Handbook) provides convenient access to detailed information on a diverse array of power engineering topics. Updates to nearly every chapter keep this book at the forefront of developments in modern power systems, reflecting international standards, practices, and technologies. Topics covered include: Electric power generation: nonconventional methods Electric power generation: conventional methods Transmission system Distribution systems Electric power utilization Power quality L.L. Grigsby, a respected and accomplished authority in power engineering, and section editors Saifur Rahman, Rama Ramakumar, George Karady, Bill Kersting, Andrew Hanson, and Mark Halpin present substantially new and revised material, giving readers up-to-date information on core areas. These include advanced energy technologies, distributed utilities, load characterization and modeling, and power quality issues such as power system harmonics, voltage sags, and power quality monitoring. With six new and 16 fully revised chapters, the book supplies a high level of detail and, more importantly, a tutorial style of writing and use of photographs and graphics to help the reader understand the material. New chapters cover: Water Transmission Line Reliability Methods High Voltage Direct Current Transmission System Advanced Technology High-Temperature Conduction Distribution Short-Circuit Protection Linear Electric Motors A volume in the Electric Power Engineering Handbook, Third Edition. Other volumes in the set: K12648 Power Systems, Third Edition (ISBN: 9781439856338) K13917 Power System Stability and Control, Third Edition (ISBN: 9781439883204) K12650 Electric Power Substations Engineering, Third Edition (ISBN: 9781439856383) K12643 Electric Power Transformer Engineering, Third Edition (ISBN: 9781439856291)
Categories: Technology & Engineering