Novel Insight into the Output Current Ripple for Multilevel and Multiphase Converter Topologies

When it comes to the computation / estimation of the switching losses in a multilevel converter, it is crucial to know the instantaneous value of the output current. If the average output current value is used instead, there is a non negligible error when the quality of the output current waveform is low. This paper addresses this issue with a generic and versatile fast numerical method for phase-disposition PWM that produces the exact switching pattern, hence the exact inductor flux, without having to run time-domain switched simulation(s), as the calculations are performed for the minimal set of points required to fully determine the inductor flux ripple at the switching instants.


Presented at:
18th IEEE Workshop on Control and Modeling for Power Electronics, IEEE COMPEL 2017, Stanford, California, USA, July 9-12, 2017
Year:
2017
Keywords:
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 Record created 2017-07-26, last modified 2018-03-17

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