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EFFICIENCY OPTIMIZATIN CONTROL OF AC INDUCTION MOTORS: INITIAL LABORATORY RESULTS
Citation:
Turner, M. W., V. McCormick, AND J. Cleland. EFFICIENCY OPTIMIZATIN CONTROL OF AC INDUCTION MOTORS: INITIAL LABORATORY RESULTS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-96/008 (NTIS PB96-153424), 1996.
Impact/Purpose:
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Description:
The report discusses the development of a fuzzy logic, energy-optimizing controller to improve the efficiency of motor/drive combinations that operate at varying loads and speeds. This energy optimizer is complemented by a sensorless speed controller that maintains motor shaft revolutions per minute (rpm) to produce constant power output. 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.