Abstract

Brief information on the features of equivalent circuits of low-power high-frequency induction motors (HFIMs) powered by nonsinusoidal voltage from a transistor frequency converter (TFC) is presented. It is shown that the difference between active and inductive resistance in the magnetizing branch of the HFIM equivalent circuit for the fundamental harmonic of the voltage applied to the HFIM is less than in induction motors (IMs) powered by a 50 Hz voltage. Therefore, significant errors occur if the active resistance of the magnetizing branch is not taken into account when analyzing and calculating the TFC–HFIM system.

中文翻译：

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晶体管变频器驱动的低功率高频感应电动机的等效电路

摘要

简要介绍了通过晶体管变频器（TFC）的非正弦电压供电的低功率高频感应电动机（HFIM）的等效电路的特性。结果表明，对于施加到HFIM的电压的基波谐波，HFIM等效电路的励磁分支中的有功和电感电阻之间的差小于由50 Hz电压供电的感应电动机（IM）。因此，如果在分析和计算TFC-HFIM系统时不考虑励磁支路的有源电阻，则会发生重大错误。