...词：风机,电动机输入功率,电动机效率,风机单位风量耗功率,商榷, [gap=394]Keywords：fan,input power of motor,motor efficiency,fan power consumption per unit air volume,discussion, ..
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本文着重论述了在周期性负载下，稀土永磁同步电动机效率与参数之间的相关性。
This paper mainly deals with the relation between energy efficiency and parameters of rare earth permanent magnet synchronous motor (REPMSM)operating under periodical load.
目前变频空调压缩机大多采用感应电动机驱动，而感应电动机效率低，变频控制器比较复杂。
Presently, induction motor is mostly used for frequency-change air conditioner compressor, but it has such drawbacks as low efficiency and complicated controller.
本文介绍了如何通过变频器的模拟量输出来测量变频器的输出功率，进而计算出变频电动机效率的方法。
This paper introduces how to measure output of the inverter by simulating quantity of it, and the method for calculating the efficiency of variable-frequency motor.
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