Multilevel inverters have very attractive features, such as lower harmonics in the output, lower EMI, and reduction of the required voltage rating of power semiconductor devices. Among them, lower harmonics in the output can reduce the volume of the output harmonic filter and additional losses caused by the harmonics. Therefore, multilevel inverters are expected to realize higher power density and higher efficiency. In this paper, as a basis of the quantitative investigation of these features, the harmonics in the PWM output voltage of multilevel inverters are analyzed theoretically. As an application of the theoretical results, the usefulness of the theoretical results is verified by the prediction of the harmonic contents of the load current.


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    Title :

    Theoretical Analysis of Harmonics in PWM Output Waveform of Multilevel Inverters



    Published in:

    Publication date :

    2015




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    Local classification TIB:    770/5600/8000
    BKL:    53.00 Elektrotechnik: Allgemeines / 53.31 Elektrische Energieübertragung / 52.53 / 53.00 / 53.33 / 53.31 / 53.33 Elektrische Maschinen und Antriebe / 52.53 Kraftwerkstechnik




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