skip to main content

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

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.
Authors:
;  [1]
  1. (Univ. of Texas, Austin, TX (United States). Dept. of Mechanical Engineering)
Publication Date:
OSTI Identifier:
6988804
Resource Type:
Journal Article
Resource Relation:
Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States); Journal Volume: 30:4Pt1
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 33 ADVANCED PROPULSION SYSTEMS; LEVITATED TRAINS; DESIGN; CONTROL EQUIPMENT; DEMONSTRATION PROGRAMS; ELECTRODYNAMICS; STABILIZATION; EQUIPMENT; TRAINS; VEHICLES 320202* -- Energy Conservation, Consumption, & Utilization-- Transportation-- Railway; 330300 -- Advanced Propulsion Systems-- Electric-Powered Systems