A device for connecting a vsc converter to a source of...

H - Electricity – 02 – M

Patent

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Details

H02M 3/135 (2006.01) H02H 3/20 (2006.01) H02J 3/18 (2006.01) H02M 7/797 (2006.01)

Patent

CA 2228397

A device for connecting a VSC converter to a source of alternating voltage having multiple phases through a plurality of inductances. The VSC converter provides a direct current voltage to a capacitor for a power transmission plant. A first circuit breaker connects the inductances to the source of alternating voltage and selectively interrupts current from each of the multiple phases. An additional circuit breaker is connected between one of the phases of the first breaker and the VSC converter. A resistor is connected across the first circuit breaker for supplying current from the one phase to the additional breaker when the first circuit breaker is in an open condition. A circuit connected to a d.c. voltage output of the VSC converter changes the first circuit breaker from an interrupting condition to a closed condition when a d.c. voltage has been established at the output of the VSC converter.

Dispositif permettant de connecter un convertisseur de source de tension à une source de tension alternative à multiples phases par l'intermédiaire d'un certain nombre de bobines d'induction. Ledit convertisseur transmet une tension c.c. à un condensateur d'une installation de transport d'énergie. Un premier disjoncteur connecte les bobines d'induction à la source de tension alternative et interrompt sélectivement le courant de chacune des multiples phases. Un disjoncteur supplémentaire est connecté entre une des phases du premier disjoncteur et le convertisseur. Une résistance est connectée aux bornes du premier disjoncteur afin de transmettre le courant de ladite phase au disjoncteur supplémentaire lorsque le premier disjoncteur est ouvert. Un circuit connecté à une sortie de tension c.c. du convertisseur fait passer le disjoncteur à l'état fermé lorsqu'une tension c.c. est appliquée à la sortie du convertisseur.

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