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[4, 2009] 

Journal of Electrical Engineering, Vol 60, 4 (2009) 185-191

INDUCTIVE CLAMPING CIRCUIT FOR DC LINK VOLTAGE BALANCING OF FIVE-LEVEL NPC-VSI

Rédha Chibani - El Madjid Berkouk - Mohamed S. Boucherit

    A new control solution to compensate the unbalanced DC voltages for the five-level Neutral Point Clamped Voltage Source Inverter (NPC-VSI) is presented. It provides a fast and flexible control of the inverter capacitor voltages. The inverter capacitor voltage control is completely independent from the load control, leading to a simpler implementation.

Keywords: multilevel inverter, neutral point clamped, voltage source inverter, sliding mode, equalizing problem, clamping bridge


[full-paper]


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