INFLUENCE OF EDDY CURRENTS ON AN ELECTROMAGNETIC LEVITATION SYSTEM
The eddy currents which are induced in the track of a magnetically suspended and guided vehicle by its translational motion strongly affect the power consumption. They effect on the one hand a diminution of the levitation force and, on the other hand, a drag force which requires an increased capability of the propulsion system. This makes a knowledge of the parameter dependence of these effects necessary. For this purpose the eddy current effects of a test magnet and a given track material are measured and the velocity dependent permeability leading to a good agreement with these measurements is worked out. Universality of the permeability curve mu (v) is tested by variations of magnet and track geometries within the range of experimental setups. In the case of satisfactory agreement, the permeability curve can be used to extrapolate to the geometries of full scale vehicles.
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Supplemental Notes:
- Institution of Electrical Engineers Conference Publication. 2nd Conference on Adv in Magn Mater and their Application, London, England, September 1-3, 1976. Also available from Institution of Electrical Engineers.
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Corporate Authors:
Institution of Electrical Engineers
Savoy Place
London WC2R 0BL, NY England 10016-5997 -
Authors:
- Bohn, G H
- Conference:
- Publication Date: 1976
Media Info
- Features: References;
- Pagination: p. 104-107
Subject/Index Terms
- TRT Terms: Core samples; Eddy currents; Electric power supply; Electromagnets; Intelligent transportation systems; Losses; Magnetic levitation; Magnetic materials; Vehicles
- Old TRIS Terms: Advanced systems; Eddy current losses; Magnetic cores; Permeameters, magnetic permeability
- Subject Areas: Energy; Operations and Traffic Management; Public Transportation; Railroads; Vehicles and Equipment;
Filing Info
- Accession Number: 00167543
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: No. 142 Proceeding
- Files: TRIS
- Created Date: Dec 27 1977 12:00AM