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1. US20120049837 - Method and arrangement to determine the cell capacitor voltage of a cell of a multi-cell power converter

Office États-Unis d'Amérique
Numéro de la demande 13290682
Date de la demande 07.11.2011
Numéro de publication 20120049837
Date de publication 01.03.2012
Numéro de délivrance 08188726
Date de délivrance 29.05.2012
Type de publication B2
CIB
G PHYSIQUE
01
MÉTROLOGIE; ESSAIS
R
MESURE DES VARIABLES ÉLECTRIQUES; MESURE DES VARIABLES MAGNÉTIQUES
19
Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 19/00
CPC
H02M 7/49
H02M 1/32
H02M 2007/4835
Déposants ABB Technology AG
Inventeurs Chimento Filippo
Dijkhuizen Frans
Hasler Jean-Philippe
Hosini Falah
Jonsson Tomas
Lundberg Peter
Monge Mauro
Norrga Staffan
Svensson Jan R.
Tinglow Fredrik
Mandataires St. Onge Steward Johnston & Reens LLC
Titre
(EN) Method and arrangement to determine the cell capacitor voltage of a cell of a multi-cell power converter
Abrégé
(EN)

An arrangement to determine a cell capacitor voltage value of a cell of a multi-cell power converter includes the cell and a control unit. The cell itself includes four power electronic valves interconnected as a full-bridge converter having a first and a second phase leg, where each phase leg includes a series-connection of two of the four power electronic valves and where the connection point between the two power electronic valves of each phase leg is externally connectable, a cell capacitor being connected in parallel to the first and the second phase legs, and four gate units, each being connected to a corresponding one of the power electronic valves as well as to the control unit.