Compared with the fundamental loss, the harmonic losses become very complicated because of the coupling between the power supply harmonics and the motor harmonics. To dispose of this problem, a multislice 2-D finite element model considering the interbar currents and a fast rotor harmonics identification method is employed to identify the harmonics of the rotor current density and flux density of the inverter-fed induction motor (IM). Considering the complex coupling phenomenon of time–space harmonics, a two-term iron model with piecewise-defined variable coefficients (PVCIL model) and a finite element analysis (FEA)-based copper loss method are then used to calculate the iron and copper loss components of the inverter-fed IM. Finally, based on the introduced methods, both the electromagnetic field and different losses terms of the same 5.5-kW inverter-fed IM under different load and supply conditions are calculated and analyzed. The experimental validation of those two losses’ calculation methods is performed on a 5.5-kW IM with different operating conditions. The results obtained in this article can provide the theoretical basis for targeted harmonic elimination and loss reduction in the design phase of the inverter-fed IM.


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    Title :

    The Electromagnetic Losses Analysis of Inverter-Fed Induction Motor Accounting for Interbar Current and Rotor Slip Frequency


    Contributors:
    Zhang, Dongdong (author) / Yi, Jiawei (author) / Zhu, Hongyu (author) / Ahmad, Tanveer (author) / Zhao, Haisen (author) / Goh, Hui Hwang (author) / Zhang, Yanli (author) / Wu, Thomas (author)


    Publication date :

    2022-03-01


    Size :

    3193290 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English