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Title: Hybrid-secondary uncluttered induction machine

Abstract

An uncluttered secondary induction machine (100) includes an uncluttered rotating transformer (66) which is mounted on the same shaft as the rotor (73) of the induction machine. Current in the rotor (73) is electrically connected to current in the rotor winding (67) of the transformer, which is not electrically connected to, but is magnetically coupled to, a stator secondary winding (40). The stator secondary winding (40) is alternately connected to an effective resistance (41), an AC source inverter (42) or a magnetic switch (43) to provide a cost effective slip-energy-controlled, adjustable speed, induction motor that operates over a wide speed range from below synchronous speed to above synchronous speed based on the AC line frequency fed to the stator.

Inventors:
 [1]
  1. (Oak Ridge, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENERGY RES COR
OSTI Identifier:
874095
Patent Number(s):
6310417
Assignee:
Lockheed Martin Energy Research Corporation (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
hybrid-secondary; uncluttered; induction; machine; secondary; 100; rotating; transformer; 66; mounted; shaft; rotor; 73; current; electrically; connected; winding; 67; magnetically; coupled; stator; 40; alternately; effective; resistance; 41; source; inverter; 42; magnetic; switch; 43; provide; cost; slip-energy-controlled; adjustable; speed; motor; operates; wide; range; below; synchronous; based; line; frequency; fed; electrically connected; induction machine; /310/318/322/

Citation Formats

Hsu, John S. Hybrid-secondary uncluttered induction machine. United States: N. p., 2001. Web.
Hsu, John S. Hybrid-secondary uncluttered induction machine. United States.
Hsu, John S. Mon . "Hybrid-secondary uncluttered induction machine". United States. https://www.osti.gov/servlets/purl/874095.
@article{osti_874095,
title = {Hybrid-secondary uncluttered induction machine},
author = {Hsu, John S.},
abstractNote = {An uncluttered secondary induction machine (100) includes an uncluttered rotating transformer (66) which is mounted on the same shaft as the rotor (73) of the induction machine. Current in the rotor (73) is electrically connected to current in the rotor winding (67) of the transformer, which is not electrically connected to, but is magnetically coupled to, a stator secondary winding (40). The stator secondary winding (40) is alternately connected to an effective resistance (41), an AC source inverter (42) or a magnetic switch (43) to provide a cost effective slip-energy-controlled, adjustable speed, induction motor that operates over a wide speed range from below synchronous speed to above synchronous speed based on the AC line frequency fed to the stator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Patent:

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