Forward and reverse control system for induction motors
Abstract
A control system for controlling the direction of rotation of a rotor of an induction motor includes an array of five triacs with one of the triacs applying a current of fixed phase to the windings of the rotor and four of the triacs being switchable to apply either hot ac current or return ac current to the stator windings so as to reverse the phase of current in the stator relative to that of the rotor and thereby reverse the direction of rotation of the rotor. Switching current phase in the stator is accomplished by operating the gates of pairs of the triacs so as to connect either hot ac current or return ac current to the input winding of the stator. 1 fig.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- OSTI Identifier:
- 6772802
- Patent Number(s):
- 6096435
- Assignee:
- SNL; EDB-88-178858
- Patent Classifications (CPCs):
-
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- AC04-76DP00789
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; CONTROL SYSTEMS; DESIGN; ELECTRIC MOTORS; AC SYSTEMS; ELECTRONIC CIRCUITS; INVENTIONS; ENERGY SYSTEMS; MOTORS; POWER SYSTEMS; 420200* - Engineering- Facilities, Equipment, & Techniques
Citation Formats
Wright, J T. Forward and reverse control system for induction motors. United States: N. p., 1987.
Web.
Wright, J T. Forward and reverse control system for induction motors. United States.
Wright, J T. Tue .
"Forward and reverse control system for induction motors". United States.
@article{osti_6772802,
title = {Forward and reverse control system for induction motors},
author = {Wright, J T},
abstractNote = {A control system for controlling the direction of rotation of a rotor of an induction motor includes an array of five triacs with one of the triacs applying a current of fixed phase to the windings of the rotor and four of the triacs being switchable to apply either hot ac current or return ac current to the stator windings so as to reverse the phase of current in the stator relative to that of the rotor and thereby reverse the direction of rotation of the rotor. Switching current phase in the stator is accomplished by operating the gates of pairs of the triacs so as to connect either hot ac current or return ac current to the input winding of the stator. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 15 00:00:00 EDT 1987},
month = {Tue Sep 15 00:00:00 EDT 1987}
}
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