Design Fabrication And Experimental Demonstration Of A Permanent Magnet Synchronous Spherical Motor
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Permanent Magnet Spherical Motors
| Author | : Kun Bai |
| Publisher | : Springer |
| Total Pages | : 170 |
| Release | : 2018-03-20 |
| Genre | : Technology & Engineering |
| ISBN | : 9811079625 |
This book introduces and illustrates modeling, sensing, and control methods for analyzing, designing, and developing spherical motors. It systematically presents models for establishing the relationships among the magnetic fields, position/orientation and force/torque, while also providing time-efficient solutions to assist researchers and engineers in studying and developing these motors. In order to take full advantage of spherical motors’ compact structure in practical applications, sensing and control methods that utilize their magnetic fields and eliminate the need to install external sensors for feedback are proposed. Further, the book investigates for the first time spherical motors’ force/torque manipulation capability, and proposes algorithms enabling the ball-joint-like end-effector for haptic use based on these motors’ hybrid position/force actuation modes. While systematically presenting approaches to their design, sensing and control, the book also provides many examples illustrating the implementation issues readers may encounter.
Permanent Magnet Motor Technology
| Author | : Jacek F. Gieras |
| Publisher | : CRC Press |
| Total Pages | : 1312 |
| Release | : 2002-01-22 |
| Genre | : Technology & Engineering |
| ISBN | : 9780824743949 |
Co-authored by a world-renowned expert in the field, Permanent Magnet Motor Technology: Design and Applications, Second Edition demonstrates the construction of PM motor drives and supplies ready-to-implement solutions for common roadblocks. The author presents fundamental equations and calculations to determine and evaluate system performance, efficiency, and reliability; explores modern computer-aided design of PM motors, including the finite element approach; and covers how to select PM motors to meet the specific requirements of electrical drives. The numerous examples, models, and diagrams provided in each chapter give the reader a clear understanding of motor operations and characteristics.
Permanent Magnet Reluctance & Self Synchronous Motors
| Author | : Syed A. Nasar |
| Publisher | : Springer |
| Total Pages | : 296 |
| Release | : 1993-03-17 |
| Genre | : Technology & Engineering |
| ISBN | : |
Permanent Magnet, Reluctance, and Self-Synchronous Motors discusses the theory, design, and control of permanent magnet materials. The book describes permanent magnets and their applications to electric machines as well as their performance characteristics and limitations. It presents the performance and calculations of PM commutator motors and an approach to their design. Permanent magnet synchronous motors, finite-element calculations, design methodologies, and rectangular and sinusoidal current control are discussed. It presents reluctance motors, their topologies and performance analyses as well as reluctance synchronous motors, with very large rotor saliency ratios, and their vector control. Numerical examples and data of practical interest are provided throughout the book. The book will be very useful to engineers involved in the design and manufacturing of permanent magnet and reluctance motors and high-performance drives, as well as electrical engineering students and educators.
Design Rules for Permanent Magnet Synchronous Machine with Tooth Coil Winding Arrangement
| Author | : Ahamed Bilal Asaf Ali |
| Publisher | : Cuvillier |
| Total Pages | : 196 |
| Release | : 2014-08-14 |
| Genre | : Electric motors, Synchronous |
| ISBN | : 9783954047703 |
This thesis presents the generic rules for permanent magnet synchronous machine (PMSM) with tooth coil winding arrangement. The generic rules concentrates on minimized cogging torque and torque ripple. The geometries considered in this thesis are two different tooth coil winding arrangements and three different rotor types to formulate the design rules. The occurrence of parasitic torque in the PMSM is classified from the origin of harmonic sources. The cogging torque and torque ripple are derived analytically using the stator current sheet distribution, the rotor field distribution and the permeance functions. The detailed torque analysis are performed in Finite Element Method (FEM) for different slot opening and magnet pole coverage. The 2D harmonics analysis approach is used to predict the sources of the harmonics. The torque is reconstructed from the selected harmonics combinations and are compared with the pulsating torque obtained directly from the FEM. The harmonic sources of pulsating torque are also validated with prototype for a geometry. The investigations on pulsating torque are extended to other operating points such as field weakening and half load condition. Finally, the generic design rules are suggested for PMSM with tooth coil winding arrangement. In addition, simplified design rules to have quick design approach and design guidelines from manufacturing point of view are suggested.
Permanent Magnet Motor Technology
| Author | : Jacek F. Gieras |
| Publisher | : CRC Press |
| Total Pages | : 591 |
| Release | : 2009-08-25 |
| Genre | : Technology & Engineering |
| ISBN | : 1439859019 |
The importance of permanent magnet (PM) motor technology and its impact on electromechanical drives has grown exponentially since the publication of the bestselling second edition. The PM brushless motor market has grown considerably faster than the overall motion control market. This rapid growth makes it essential for electrical and electromechanical engineers and students to stay up-to-date on developments in modern electrical motors and drives, including their control, simulation, and CAD. Reflecting innovations in the development of PM motors for electromechanical drives, Permanent Magnet Motor Technology: Design and Applications, Third Edition demonstrates the construction of PM motor drives and supplies ready-to-implement solutions to common roadblocks along the way. This edition supplies fundamental equations and calculations for determining and evaluating system performance, efficiency, reliability, and cost. It explores modern computer-aided design of PM motors, including the finite element approach, and explains how to select PM motors to meet the specific requirements of electrical drives. The numerous examples, models, and diagrams provided in each chapter facilitate a lucid understanding of motor operations and characteristics. This 3rd edition of a bestselling reference has been thoroughly revised to include: Chapters on high speed motors and micromotors Advances in permanent magnet motor technology Additional numerical examples and illustrations An increased effort to bridge the gap between theory and industrial applications Modified research results The growing global trend toward energy conservation makes it quite possible that the era of the PM brushless motor drive is just around the corner. This reference book will give engineers, researchers, and graduate-level students the comprehensive understanding required to develop the breakthroughs that will push this exciting technology to the forefront.
The Proceedings of the 9th Frontier Academic Forum of Electrical Engineering
| Author | : Weiming Ma |
| Publisher | : Springer Nature |
| Total Pages | : 841 |
| Release | : 2021-04-21 |
| Genre | : Technology & Engineering |
| ISBN | : 9813366060 |
This book includes the original, peer-reviewed research papers from the 9th Frontier Academic Forum of Electrical Engineering (FAFEE 2020), held in Xi’an, China, in August 2020. It gathers the latest research, innovations, and applications in the fields of Electrical Engineering. The topics it covers including electrical materials and equipment, electrical energy storage and device, power electronics and drives, new energy electric power system equipment, IntelliSense and intelligent equipment, biological electromagnetism and its applications, and insulation and discharge computation for power equipment. Given its scope, the book benefits all researchers, engineers, and graduate students who want to learn about cutting-edge advances in Electrical Engineering.
Rare-earth Free Permanent Magnets and Permanent Magnet Synchronous Motors
| Author | : Jihoon Park |
| Publisher | : |
| Total Pages | : 184 |
| Release | : 2016 |
| Genre | : Electronic dissertations |
| ISBN | : |
In this dissertation, basic and applied research programs are engaged that range from the fundamental magnetism and magnetic properties of ferro- and ferrimagnetic materials to the design and fabrication of rare earth (RE) free permanent and soft magnetic materials for an interior permanent magnet synchronous motor (IPMSM) (i.e., motor for electric vehicles and plug-in electric vehicles) and heat assisted magnetic recording media (HAMR) with 4 Tb/in2 information storage applications. The applied research program emphasizes the design and synthesis of new RE-free permanent magnetic materials and magnetic exchange coupled core(hard)-shell(soft) particles to achieve a high maximum energy product [(BH)max], and the design of an advanced IPMSM based on RE free permanent magnets. The electronic structures of hard magnetic materials such as Mn-Al, Mn-Bi, Mn-Bi-X, Fe-Pt, Fe-Pt-X, SrFe12O19, and SrFe12O19-X (X = transition elements) and soft magnetic materials such as nanocrystalline and Mn-B were calculated based on the density functional theory (DFT), and their exchange coupled magnetic properties with soft magnets were designed according to the size and shape of the particles. The calculated magnetic and electronic properties were used to obtain the temperature dependence of saturation magnetization Ms(T) and anisotropy constant K(T) within the mean field theory. Thereby, the temperature dependence of the maximum energy product [(BH)max(T)] is calculated using the calculated Ms(T) and K(T). The experimental approaches were based on chemical and ceramic processes to synthesize hard and soft magnetic materials. Prior to synthesis, material design parameters were optimized by first-principles calculations and micromagnetic simulations. Lastly, performance of RE-free MnAl, MnBi, SrFe12O19, and Alnico IPMSMs, designed with the finite element method (FEM), at 23 and 200 oC were evaluated and compared to a RE Nd Fe B IPMSM. The performance parameters include torque, efficiency, and power. It was found that the performance of the MnBi and Alnico IPMSM is comparable with the Nd-Fe-B IPMSM.
