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U.S. Department of Energy
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Efficiency optimization control of AC induction motors: Initial laboratory results. Final report, January 1992-September 1994

Technical Report ·
OSTI ID:229290

A fuzzy logic, energy optimizing controller has been developed to improve the efficiency of motor/drive combinations which operate at varying load and speed conditions. The energy optimizer is complemented by a sensorless speed controller which maintains motor shaft revolutions per minute (RPM) to produce constant output power. Efficiency gains of from 1 to 20% are obtained from laboratory demonstration with commercial motors and drives. Motor shaft RPM is controlled to within 0.5%. The energy optimizing controller used for vector control adjustable speed drives is complemented by a torque pulsation control scheme to rapidly damp vibrations.

Research Organization:
Research Triangle Inst., Durham, NC (United States)
OSTI ID:
229290
Report Number(s):
PB--96-153424/XAB
Country of Publication:
United States
Language:
English