A Four-Quadrant Modulation Technique to Extend Modulation Index Range for Multilevel Selective Harmonic Elimination/Compensation Using Staircase Waveforms


One critical drawback of staircase multilevel selective harmonic elimination and compensation is that the modulation index range is very narrow. As a result, its application is limited. This paper presents a technique to transform the transcendental equations to geometry-based voltage phasor diagrams to explore the reason for the limited solution range and… (More)

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