Static electric power converter for modulating electric...

H - Electricity – 02 – M

Patent

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Details

H02M 5/293 (2006.01) H02M 1/00 (2007.10) H02M 3/158 (2006.01) H02M 3/335 (2006.01)

Patent

CA 2474137

The invention concerns a static electric power converter for modulating electric power exchanged between at least two electrical sources, comprising at least a voltage source, a current source, and at least an electrical switching cell, each switching cell including at least two static interruptors (k1) star connected on the voltage source(s), the common point of the star being connected to the current source, and said current source being closed on the voltage source(s). The invention is characterized in that at least one of the static interruptors (k1) of at least one switching cell, is an interruptor provided with two output electrodes whereof one of the state changes (for opening or closure switching) is automatic and operates exclusively at a predetermined voltage threshold other than zero when the absolute value of said voltage increases.

L'invention concerne un convertisseur statique d'énergie électrique destiné à moduler l'énergie électrique échangée entre au moins deux sources électriques, comprenant au moins une source électrique de tension, une source de courant, et au moins une cellule de commutation électrique, chaque cellule de commutation comportant au moins deux interrupteurs statiques de commutation (k1) connectés en étoile sur la (ou les) source(s) de tension, avec le point commun de l'étoile connecté à la source de courant, et ladite source de courant étant refermée sur la (ou les) source(s) de tension. Selon l'invention, au moins un des interrupteurs statiques (k1) d'au moins une cellule de commutation, est un interrupteur pourvu de deux électrodes de sortie dont au moins un des changements d'état (assurant une commutation à l'ouverture ou à la fermeture) est automatique et s'opère exclusivement à un seuil de tension prédéfini différent de zéro lors de la croissance de la valeur absolue de ladite tension.

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