Linear Synchronous Motors : Transportation and Automation Systems, Second Edition book cover
2nd Edition

Linear Synchronous Motors
Transportation and Automation Systems, Second Edition

ISBN 9781439842218
Published August 25, 2011 by CRC Press
520 Pages 311 B/W Illustrations

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Book Description

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.

Table of Contents

Topologies and Selection

Definitions, Geometry, and Thrust Generation

Linear Synchronous Motor Topologies

Calculation of Forces

Linear Motion

Selection of Linear Motors

Materials and Construction


Laminated Ferromagnetic Cores

Permanent Magnets


Insulation Materials

Principles of Superconductivity

Superconducting Wires

Laminated Stacks

Armature Windings of Slotted Cores

Slotless Armature Systems

Electromagnetic Excitation Systems

Permanent Magnet Excitation Systems

Superconducting Excitation Systems

Hybrid Linear Stepping Motors

Theory of Linear Synchronous Motors

Permanent Magnet Synchronous Motors

Motors with Superconducting Excitation Coils

Double-Sided LSM with Inner Moving Coil

Variable Reluctance Motors

Switched Reluctance Motors

FEM Analysis

Fundamental Equations of Electromagnetic Field

FEM Modeling

Time-Stepping FEM Analysis

FEM Analysis of Three-Phase PM LSM

Hybrid and Special Linear Permanent Magnet Motors

Permanent Magnet Hybrid Motors

Five-Phase Permanent Magnet Linear Synchronous Motors

Tubular Linear Reluctance Motors

Linear Oscillatory Actuators

Motion Control

Control of AC Motors

EMF and Thrust of PM Synchronous and Brushless Motors

Model of PM Motor in dq Reference Frame

Thrust and Speed Control of PM Motors

Control of Hybrid Stepping Motors

Precision Linear Positioning


Linear Optical Sensors

Linear Magnetic Encoders

High-Speed Maglev Transport

Electromagnetic and Electrodynamic Levitation

Transrapid System (Germany)

Yamanashi Maglev Test Line in Japan

American Urban Maglev


Marine Express

Building and Factory Transportation Systems

Elevator Hoisting Machines

Ropeless Elevators

Horizontal Transportation Systems

Industrial Automation Systems

Automation of Manufacturing Processes

Ball Lead Screws

Linear Positioning Stages

Gantry Robots

Material Handling

Machining Processes

Welding and Thermal Cutting

Surface Treatment and Finishing

2D Orientation of Plastic Films


Industrial Laser Applications

Appendix A: Magnetic Circuits with Permanent Magnets

A.1 Approximation of Demagnetization Curve and Recoil Line

A.2 Operating Diagram

Appendix B: Calculations of Permeances

B.1 Field Plotting

B.2 Dividing the Magnetic Field into Simple Solids

B.3 Prisms and Cylinders Located in an Open Space

Appendix C: Performance Calculations for PM LSMs

Appendix D: Field-Network Simulation of Dynamic



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Jacek F. Gieras graduated in 1971 from the Technical University of Lodz, Poland, with distinction. In 1980, he received his Ph.D degree in Electrical Engineering (Electrical Machines) in 1975, and the Dr habil. degree (corresponding to DSc), also in Electrical Engineering, from the University of Technology, Poznan, Poland. His research area is Electrical Machines, Drives, Electromagnetics, Power Systems, and Railway Engineering. In 1987 he was promoted to the rank of full professor. Since 1998 he has been affiliated with United Technologies Corporation, USA. In 2007 he also joined the University of Technology and Life Sciences in Bydgoszcz, Poland, as a full professor. An IEEE fellow, Prof. Gieras has authored and co-authored 11 books of international standing and more than 250 scientific and technical papers. In addition, he holds 30 patents.

Zbigniew (Jerry) Piech graduated in 1975 from the Technical University of Wroclaw, Poland. He received his Ph.D degree in Electrical Engineering in 1981, also from the Technical University of Wroclaw. From 1975 to 1989 he was an academic staff member of the Department of Electrical Engineering at the University of Technology and Life Sciences, Bydgoszcz, Poland. He joined United Technologies Corporation in 1990.

His major contributions in the area of electric machines and power systems include development of a series of modern permanent magnet brushless motors for Otis Elevator Company. During the past 10 years he has had a leading role in establishing permanent magnet motor technology for the company. Dr Piech authored and coauthored 20 publications and holds 14 patents in the area of electric machine design and controls.

Bronislaw Z. Tomczuk graduated in 1977 from the Opole University of Technology, Poland, with honors. He received his PhD and Dr habil. (corresponding to DSc) degrees from the Technical University of Lodz, Poland, in 1985 and 1995, respectively. Since 1978, he has been on the academic staff of the Technical University of Opole, Poland, and he was promoted to full professor in 2007. His area of interest is 3D mathematical modeling of electromagnetic fields using numerical methods and its applications to CAD of transformers, linear motors, actuators, magnetic bearings, and other electromagnetic devices. He has authored or coauthored five books and more than 170 scientific and technical articles, and he holds 10 patents. He is also a recipient of the Gold Cross of Merit from the President of Poland.