Linear Synchronous Motors: Transportation and Automation Systems
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Summary
Contrary to some opinions, electric motors are decidedly not part of an old-fashioned area of research. They are, in fact, the most popular machines of everyday life, and the number of types increase almost every year. Advances in materials engineering, power electronics, and control strategies along with energy and reliability demands continue to stimulate the development of exciting new technologies and applications. Ranking high among the most exciting of these technologies are linear synchronous motors (LSMs).
Linear Synchronous Motors: Transportation and Automation Systems provides a comprehensive treatment of all types of brushless LSMs-their construction, electromagnetic effects, control, and applications. It explains the physics of hard magnetic materials, discusses permanent magnet and superconducting excitation systems, and addresses applications in factory automation and high-speed transportation systems.
LSMs have better performance and higher power density than their induction counterparts, and they can operate with a larger mechanical clearance between their stationary and moving parts. Paying equal attention to the design and the applications of LSMs, Linear Synchronous Motors offers a unique opportunity to master the inner workings of LSMs, discover new research results, and keep abreast of their emerging applications. Electromechanical designers, electrical and mechanical engineers, as well as linear motor enthusiasts will welcome this broad and authoritative work to their reference collections.
Table of Contents
Topology and Selection
Definitions, Geometry, and Thrust Generation
Linear Synchronous Motor Topologies
Calculation of Forces
Linear Motion
Selection of Linear Motors
Materials and Construction
Materials
Laminated Ferromagnetic Cores
Permanent Magnets
Conductors
Principles of Superconductivity
Laminated Stacks
Armature Windings of Slotted Cores
Slotless Armature Systems
Electromagnetic Excitation Systems
Superconducting Excitation Systems
Hybrid Linear Stepping Motors
Theory of Linear Synchronous Motors
Permanent Magnet Synchronous Motors
Motors with Superconducting Excitation Coils
Variable Reluctance Motors
Permanent Magnet Hybrid Motors
Motion Control
Control of AC Motors
EMF and Thrust of PM Synchronous and Brushless Motors
Dynamic Model of a PM Motor
Thrust and Speed Control of PM Motors
Control of Hybrid Stepping Motors
Precision Linear Positioning
Sensors
Linear Optical Sensors
Linear magnetic Encoders
High Speed Maglev Transport
Electromagnetic and Electrodynamic Levitation
Transrapid System (Germany)
Yamanashi Maglev Test Line in Japan
Swissmetro
Marine Express
Building and Factory Transportation Systems
Elevator Hoisting Machines
Ropeless Elevators
Assessment of Hoist Performance
Horizontal Transportation systems
Industrial Automation Systems
Automation of Manufacturing Processes
Casting Processes
Machining Processes
Welding and Thermal Cutting
Surface Treatment and Finishing
Material Handling
Testing
Industrial Laser Applications
Appendix A
Magnetic Circuits with Permanent Magnets
Appendix B
Permeances for Magnetic Fluxes
Appendix C
Performance Calculations for PM LSMs
Symbols and Abbreviations
References
