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Repozytorium publikacji
Politechniki Gdańskiej

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Modeling the effect of parasitic capacitances on the dead-time distortion in multilevel NPC inverters

A simple model is derived and verified for evaluating the effect of parasitic capacitances on the dead-time related voltage distortion in multilevel NPC voltage source inverters. The model permits well-defined and precise compensation of dead-time distortion, exhibiting meaningful improvement on compensation methods neglecting the effects of parasitic capacitances. A simple formula is given for evaluating the capacitances as serial/parallel connections of transistor capacitances and external capacitances (introduced by the cables and load).

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