Download or read book Linear Electric Machines Drives and MAGLEVs Handbook written by Ion Boldea and published by CRC Press. This book was released on 2023-07-31 with total page 737 pages. Available in PDF, EPUB and Kindle. Book excerpt: Linear motion is richly present in various industries, from direct electric propulsion in urban and interurban people movers on wheels or on magnetic “cushions” (MAGLEVs) to indoor transport of goods (conveyors, etc.), through plunger solenoids (to open hotel doors and as electromagnetic power switches), to compressor drives by linear oscillatory permanent magnet (PM) motors, smart phones integrated microphone and loudspeakers, and controlled vehicles’ suspension, etc. Besides the traditional rotary motor drives with mechanical transmissions, which mean friction limitations (weather dependent) in traction (heavy vehicles), more losses, positioning errors (backlash) in the process, and higher maintenance costs to handle them, linear motion in industry by direct electromagnetic forces is free of friction limitations for traction, free of mechanical transmission, and thus more efficient, with less maintenance cost and fewer positioning errors (backlash). This explains why they are used in so many applications already since the dramatic advancement of power electronics and digital control in the last four decades. Modeling, performance, design, control, and testing of linear electric machines (LEMs) show notable differences with respect to rotary electric motor drives, which warrant a dedicated treatment of these aspects. The Second Edition (First Edition: 2013) concentrates on the above technical aspects of various types of LEMs in close relationship with specific applications via numerical examples of modeling, design, control, and testing, with ample representative results from literature, industry and some of the author’s contributions, such as: Technical field and circuit modeling of linear induction motors in flat configurations for low and high speeds (with and without dynamic end effects) and in tubular configurations short travel design, control and testing Linear synchronous motor (LSM) drives in dc-excited, homopolar, reluctance and superconducting excitation configurations for urban and interurban high-speed vehicles propulsion and integrated propulsion and levitation (in MAGLEVs) modeling, design and control with full-scale numerical examples, with emphasis on lower KWh/passenger/Km at high speeds Flat and tubular linear permanent magnet (PM) synchronous motors (L-PMSMs), mainly destined to industrial indoor transport for automation at high efficiency in clean rooms Linear “flux-modulation” motors— new breed, suitable for very low-speed applications due to higher thrust density Plunger solenoids in various applications including new valve PM actuators with millisecond response time Linear resonant PM oscillatory motors design, control and testing mainly destined to compressors for higher efficiency in compact drives Attraction and repulsive force suspension (levitation) systems for MAGLEVs Active and passive guideway MAGLEVs in urban and superhigh-speed interurban transport at lower Kwh per passenger/km (in lighter vehicles without wheels) The numerous numerical design and control examples (with practical specifications) throughout the 23 chapters of the book allow the reader deep and fast access to a practical but thorough unitary (good for comparisons) methodology in designing and controlling LEMs for various applications.

Download or read book Linear Synchronous Motors written by Jacek F. Gieras and published by CRC Press. This book was released on 2018-04-20 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Energy Efficiency in Electric Devices Machines and Drives written by Gorazd Štumberger and published by MDPI. This book was released on 2020-06-18 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Issue deals with improvements in the energy efficiency of electric devices, machines, and drives, which are achieved through improvements in the design, modelling, control, and operation of the system. Properly sized and placed coils of a welding transformer can reduce the required iron core size and improve the efficiency of the welding system operation. New structures of the single-phase field excited flux switching machine improve its performance in terms of torque, while having higher back-EMF and unbalanced electromagnetic forces. A properly designed rotor notch reduces the torque ripple and cogging torque of interior permanent magnet motors for the drive platform of electric vehicles, resulting in lower vibrations and noise. In the field of modelling, the torque estimation of a Halbach array surface permanent magnet motor with a non-overlapping winding layout was improved by introducing an analytical two-dimensional subdomain model. A general method for determining the magnetically nonlinear two-axis dynamic models of rotary and linear synchronous reluctance machines and synchronous permanent magnet machines is introduced that considers the effects of slotting, mutual interaction between the slots and permanent magnets, saturation, cross saturation, and end effects. Advanced modern control solutions, such as neural network-based model reference adaptive control, fuzzy control, senseless control, torque/speed tracking control derived from the 3D non-holonomic integrator, including drift terms, maximum torque per ampere, and maximum efficiency characteristics, are applied to improve drive performance and overall system operation.

Download or read book Books and Pamphlets Including Serials and Contributions to Periodicals written by Library of Congress. Copyright Office and published by . This book was released on 1963-07 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IMACS 91 written by Robert Vichnevetsky and published by . This book was released on 1991 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Variable Price Performance Metric for Component Selection Using as an Example an Actuator and Control System with Estimator for Vehicle Vibration Reduction written by Hiroshi Okuzumi and published by . This book was released on 1992 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1986 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IMACS 91 13th World Congress on Computation and Applied Mathematics written by Robert Vichnevetsky and published by . This book was released on 1991 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings -- Computer Arithmetic, Algebra, OOP.

Download or read book Mechatronics 98 written by J. Adolfsson and published by Elsevier. This book was released on 1998-08-28 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechatronics, a synergistic combination of mechanical, electronic and computing engineering technologies, is a truly multidisciplinary approach to engineering. New products based on mechatronic principles are demonstrating reduced mechanical complexity, increased performance and often previously impossible capabilities. This book contains the papers presented at the UK Mechatronics Forum's 6th International Conference, held in Skövde, Sweden, in September 1998. Many of these high-quality papers illustrate the tremendous influence of mechatronics on such areas as manufacturing machinery, automotive engineering, textiles manufacture, robotics, and real-time control and vision systems. There are also papers describing developments in sensors, actuators, control and data processing techniques, such as fuzzy logic and neural networks, all of which have practical application to mechatronic systems.

Download or read book Modelling and Control of Switched Reluctance Machines written by Rui Araújo and published by BoD – Books on Demand. This book was released on 2020-09-09 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, switched reluctance machines (SRMs) play an increasingly important role in various sectors due to advantages such as robustness, simplicity of construction, low cost, insensitivity to high temperatures, and high fault tolerance. They are frequently used in fields such as aeronautics, electric and hybrid vehicles, and wind power generation. This book is a comprehensive resource on the design, modeling, and control of SRMs with methods that demonstrate their good performance as motors and generators.

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1978 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Linear Electric Actuators and Generators written by I. Boldea and published by Cambridge University Press. This book was released on 1997-03-28 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Linear electric actuators (LEAs) and linear electric generators (LEGs) are widely used electromagnetic devices. This book deals with LEAs that convert electric energy into controlled mechanical motion of limited travel and LEGs that transform mechanical energy into electric energy. Examples range from loudspeakers and microphones to magnetically levitated material transfer in ultraclean rooms. Much of the literature on linear actuators and generators covers the principles of operation and performance calculations of these devices. Little has been published on their control or on detailed design methodologies. This book presents the first unified treatment of the subject, including the construction, operation, control and design of LEAs and LEGs. Chapters describe linear induction, permanent-magnet, linear reluctance, switched reluctance, and linear stepper actuators, as well as various types of linear electric generators. The text is amply illustrated with numerous design examples.

Download or read book Advances in Adaptive Optics II written by and published by . This book was released on 2006 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laser induced Graphene written by Ruquan Ye and published by . This book was released on 2020-11-30 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: LIG is a revolutionary technique that uses a common CO2 infrared laser scriber, like the one used in any machine shop, for the direct conversion of polymers into porous graphene under ambient conditions. This technique combines the preparation and patterning of 3D graphene in a single step, without the use of wet chemicals. The ease in the structural engineering and excellent mechanical properties of the 3D graphene obtained have made LIG a versatile technique for applications across many fields. This book compiles cutting-edge research on LIG by different research groups all over the world. It discusses the strategies that have been developed to synthesize and engineer graphene, including controlling its properties such as porosity, composition, and surface characteristics. The authors are pioneers in the discovery and development of LIG and the book will appeal to anyone involved in nanotechnology, chemistry, environmental sciences, and device development, especially those with an interest in the synthesis and applications of graphene-based materials.

Download or read book Electric Drives and Electromechanical Systems written by Richard Crowder and published by Butterworth-Heinemann. This book was released on 2019-10-19 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electric Drives and Electromechanical Devices: Applications and Control, Second Edition, presents a unified approach to the design and application of modern drive system. It explores problems involved in assembling complete, modern electric drive systems involving mechanical, electrical, and electronic elements. This book provides a global overview of design, specification applications, important design information, and methodologies.This new edition has been restructured to present a seamless, logical discussion on a wide range of topical problems relating to the design and specification of the complete motor-drive system. It is organised to establish immediate solutions to specific application problem. Subsidiary issues that have a considerable impact on the overall performance and reliability, including environmental protection and costs, energy efficiency, and cyber security, are also considered. - Presents a comprehensive consideration of electromechanical systems with insights into the complete drive system, including required sensors and mechanical components - Features in-depth discussion of control schemes, particularly focusing on practical operation - Includes extensive references to modern application domains and real-world case studies, such as electric vehicles - Considers the cyber aspects of drives, including networking and security

Download or read book Recent Advances in Robotic Systems written by Guanghui Wang and published by BoD – Books on Demand. This book was released on 2016-09-28 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together some recent advances and development in robotics. In 12 chapters, written by experts and researchers in respective fields, the book presents some up-to-date research ideas and findings in a wide range of robotics, including the design, modeling, control, learning, interaction, and navigation of robots. From an application perspective, the book covers UAVs, USVs, mobile robots, humanoid robots, graspers, and underwater robots. The unique text offers practical guidance to graduate students and researchers in research and applications in the field of robotics.

Download or read book Concise Encyclopedia of Composite Materials written by A. Kelly and published by Elsevier. This book was released on 2012-12-02 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Concise Encyclopedia of Composite Materials, first published as a hardbound edition in 1989, has been updated and revised and is now available as a paperback for individual researchers requiring a fundamental reference source for this dynamic field. Since 1989, research involving composite materials has advanced rapidly and this revised edition reflects those changes with the addition of new articles, including recent work on nanocomposites, smart composite materials systems, and metallic multilayers. The 67 articles included in this revised edition are presented in alphabetical order and each provides an introduction to one aspect of composite materials. Every article is extensively cross-referenced and includes a full bibliography. The volume contains over 250 photographs, drawings and tables as well as exhaustive subject and author indexes. The comprehensive breadth of coverage of the field of composite materials makes this volume an invaluable source of reference for materials scientists and mechanical engineers involved in industrial and academic research into the fabrication, properties and applications of composite materials.