For what percentage is an unequal or an unbalance voltage allowed for DCC multilevel converter?

01 October 2014 1 3K Report

For multilevel diode-clamped converters, the dc-link capacitors balancing is important. For what percentage is an unequal or an unbalance voltage allowed?

Gerro J. Prinsloo

Dear Aboubakr, you should download a copy of this article 10.1109/PESC.1995.474959 and this paper deals more directly with your problem https://www.researchgate.net/publication/233730119_DC_Link_Capacitor_Voltage_Balancing_in_Three_Level_Neutral_point_Clamped_Inverter , should be less than 20%.

Conference Paper DC Link Capacitor Voltage Balancing in Three Level Neutral p...

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