Electrical circuit for converting electrical energy having capac

Details Electrical circuit for converting electrical energy having capac Electrical circuit for converting electrical energy having capac

1997-08-08

1999-08-17

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

With voltage division by storage type impedance

H02M 306

Patent

active

059402857

ABSTRACT:
A multilevel converter including, in particular, a capacitor for each of its cells, and control means comprising means for evaluating the mean voltage across the terminals of each of the capacitors, means for measuring any difference on each of said capacitors between the evaluated mean charge voltage and the nominal mean charge voltage of the capacitor, and additional control means changing the time positions of the converter control signals in a direction such that the measured difference is reduced.

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