Passive magnetic bearing for a motor-generator
Abstract
Conductive lap windings are interleaved with conventional loops in the stator of a motor-generator. The rotor provides magnetic induction lines that, when rotated, cut across the lap windings and the loops. When the rotor is laterally displaced from its equilibrium axis of rotation, its magnetic lines of induction induce a current in the interleaved lap windings. The induced current interacts with the magnetic lines of induction of the rotor in accordance with Lenz's law to generate a radial force that returns the rotor to its equilibrium axis of rotation.
- Inventors:
-
- Walnut Creek, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 908336
- Patent Number(s):
- 7078838
- Application Number:
- 09/946,298
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Post, Richard F. Passive magnetic bearing for a motor-generator. United States: N. p., 2006.
Web.
Post, Richard F. Passive magnetic bearing for a motor-generator. United States.
Post, Richard F. Tue .
"Passive magnetic bearing for a motor-generator". United States. https://www.osti.gov/servlets/purl/908336.
@article{osti_908336,
title = {Passive magnetic bearing for a motor-generator},
author = {Post, Richard F},
abstractNote = {Conductive lap windings are interleaved with conventional loops in the stator of a motor-generator. The rotor provides magnetic induction lines that, when rotated, cut across the lap windings and the loops. When the rotor is laterally displaced from its equilibrium axis of rotation, its magnetic lines of induction induce a current in the interleaved lap windings. The induced current interacts with the magnetic lines of induction of the rotor in accordance with Lenz's law to generate a radial force that returns the rotor to its equilibrium axis of rotation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 18 00:00:00 EDT 2006},
month = {Tue Jul 18 00:00:00 EDT 2006}
}
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Works referenced in this record:
Application of permanent magnets in accelerators and electron storage rings (invited)
journal, April 1985
- Halbach, Klaus
- Journal of Applied Physics, Vol. 57, Issue 8