Space vector modulation (SVM) allows 15% more bus utilization than sinusoidal pulse width modulation (PWM). In addition, variations of the SVM method can offer 33% less switching edges. With power losses in the inverter being a significant concern, a reduction in modulation losses can be a significant benefit. Different SVM techniques are discussed along with the calculations for determining both switching losses and conduction losses in the transistors and diodes. Equations for the average and RMS transistor and diode currents are derived based on a quantitative analysis of the current waveforms. The switching losses are plotted against power factor to illustrate the effect of power factor on switching losses for the various SVM techniques. The results are discussed and compared. In at least one case, an analysis of the strategy can lead to specialized power electronics optimized to the switching strategy.


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    Title :

    Power losses for space vector modulation techniques


    Contributors:


    Publication date :

    1996-01-01


    Size :

    657299 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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