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

Patent ·
OSTI ID:870265
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.
Research Organization:
Ford Motor Co
DOE Contract Number:
AC07-90ID13019
Assignee:
General Electric Company (Schenectady, NY)
Patent Number(s):
US 5486748
OSTI ID:
870265
Country of Publication:
United States
Language:
English

References (1)

A microcomputer-based control and simulation of an advanced IPM synchronous machine drive system for electric vehicle propulsion journal January 1988