| 摘要 |
<p>A system and method for nonintrusively determining electric motor efficie ncy includes a processor programmed to, while the motor is in operation, det ermine a plurality of stator input currents, electrical input data, a rotor speed, a value of stator resistance, and an efficiency of the motor based on the determined rotor speed, the value of stator resistance, the plurality o f stator input currents, and the electrical input data. The determination of the rotor speed is based on one of the input power and the plurality of sta tor input currents. The determination of the value of the stator resistance is based on at least one of a horsepower rating and a combination of the plu rality of stator input currents and the electrical input data. The electrica l input data includes at least one of an input power and a plurality of stat or input voltages.</p> |
