A power apparatus for a high voltage electrical power system

H - Electricity – 02 – M

Patent

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Details

H02M 1/32 (2007.01)

Patent

CA 2727904

The invention relates to a power apparatus (1) for a high voltage electrical power system (19), the power apparatus comprising a voltage source converter (2) and a high voltage dc power source (3) comprising one or more strings (4a, 4b, 4c) including a plurality of dc power source members (20a-e) connected in series, and switches (9), (11, 13) configured to connect and disconnect said strings, where said switches are solid-state switches, each string is subdivided into a plurality of dc power source units (8, 10, 12), each dc power source unit including a plurality of dc power source members connected in series and each d c power source unit is provided with one of said solid-state switches configured to connect and disconnect the d c power source unit, and that all solid-state switches in the string are arranged so that they are turned on and off simultaneously.

L'invention porte sur un appareil d'alimentation (1) pour un système d'alimentation électrique haute tension (19), l'appareil d'alimentation comprenant un convertisseur de source de tension (2) et une source de courant continu haute tension (3) comprenant une ou plusieurs chaînes (4a, 4b, 4c) comprenant une pluralité d'éléments sources de courant continu (20a-e) connectés en série, et des interrupteurs (9), (11, 13) configurés pour connecter et déconnecter lesdites chaînes, lesdits interrupteurs étant des interrupteurs à semi-conducteur, chaque chaîne étant subdivisée en une pluralité d'unités sources de courant continu (8, 10, 12), chaque unité source de courant continu comprenant une pluralité d'éléments sources de courant continu connectés en série et chaque unité source de courant continu comprenant un desdits interrupteurs à semi-conducteur configurés pour connecter et déconnecter l'unité source de courant continu, et tous les interrupteurs à semi-conducteur de la chaîne étant conçus de manière à être débloqués et bloqués simultanément.

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