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Title: Method and apparatus for improved efficiency in a pulse-width-modulated alternating current motor drive

A scheme for optimizing the efficiency of an AC motor drive operated in a pulse-width-modulated mode provides that the modulation frequency of the power furnished to the motor is a function of commanded motor torque and is higher at lower torque requirements than at higher torque requirements. 6 figs.
Inventors:
;
Issue Date:
OSTI Identifier:
187063
Assignee:
General Electric Co., Schenectady, NY (United States) IDO; SCA: 320303; PA: EDB-96:036641; SN: 96001532313
Patent Number(s):
US 5,486,748/A/
Application Number:
PAN: 8-195,636
Contract Number:
AC07-90ID13019
Resource Relation:
Other Information: PBD: 23 Jan 1996
Research Org:
Ford Motor Co
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ELECTRIC MOTORS; ENERGY EFFICIENCY; FREQUENCY MODULATION; PULSE TECHNIQUES; OPERATION

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