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Title: Extended cage adjustable speed electric motors and drive packages

Abstract

The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced. 12 figs.

Inventors:
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
335487
Patent Number(s):
5886445
Application Number:
PAN: 8-887,019
Assignee:
Lockheed Martin Energy Research Corp., Oak Ridge, TN (United States)
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 23 Mar 1999
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; DESIGN; ELECTRIC MOTORS; STATORS; ROTORS; SPEED REGULATORS; EFFICIENCY

Citation Formats

Hsu, J S. Extended cage adjustable speed electric motors and drive packages. United States: N. p., 1999. Web.
Hsu, J S. Extended cage adjustable speed electric motors and drive packages. United States.
Hsu, J S. Tue . "Extended cage adjustable speed electric motors and drive packages". United States.
@article{osti_335487,
title = {Extended cage adjustable speed electric motors and drive packages},
author = {Hsu, J S},
abstractNote = {The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced. 12 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {3}
}