A new repulsive magnetic levitation approach using permanent magnets and air-core electromagnets

Journal Article · Fri Jul 01 00:00:00 EDT 1994 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/20.305542· OSTI ID:6988804

Wang, I Y.A.; Busch-Vishniac, I ^[1]

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1. Univ. of Texas, Austin, TX (United States). Dept. of Mechanical Engineering

This paper introduces a new repulsive magnetic levitation approach using permanent magnets and air-core electromagnets as primary actuating components. The permanent magnets, which are attached to the bottom of a carrier, are repulsively levitated above and by oblong shaped electromagnets, which constitute one part of the guide tracks. Due to the lateral unstable nature of repulsive levitation, the stability of the levitated permanent magnets is regulated by another part of the guide tracks, electromagnetic stabilizers, which are strands of straight wires running through the entire length of the guide tracks above the levitation coils. A state feedback controller with integral compensator is designed for the stability control. The entire levitation system is divided into three subsystems: levitation, stabilization and propulsion. Al the control works with respect to each subsystem are executed extrinsic to the carrier, i.e., there is no electrical circuit on board the carrier.

• OSTI ID: 6988804
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Vol. 30:4Pt1; ISSN 0018-9464
• Country of Publication: United States
• Language: English

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