Apparatus for electrical power transmission

H - Electricity – 02 – M

Patent

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Details

H02M 7/48 (2007.01) H02J 3/18 (2006.01) H02J 3/28 (2006.01) H02J 3/36 (2006.01) H02M 5/458 (2006.01) H02M 7/797 (2006.01)

Patent

CA 2622057

The invention relates to a device for electron energy transfer (1, 39) which comprises at least one current converter (4, 6, 40). Every current converter (4, 6, 40) has phase elements (10, 11, 12, 13, 14, 15, 27, 28, 29) with respective arrangements of circuit elements (10a...10i, 11a...11i, 12a...12i, 13a...13i, 14a...14i, 15a...15i, 10a'...10i', 11a'...11i', 12a'...12i') that comprise at least two turn-off power conductors (22, 23) each and at least two free-wheeling diodes (24, 25), each connected in parallel thereto, and energy storing means (26). The aim of the invention is to improve the transfer properties in or between power distribution networks. For this purpose, the device is provided with means (16, 17, 18, 19, 43, 44, 45) for controlling the current converter in such a manner that epoch, amplitude and/or the instantaneous values of an alternating current of a transfer network that can be connected to the device and/or the direct current of a direct current line that connects at least one current converter to a direct current source, and/or the direct voltage and the direct current can be controlled by at least three interconnected current converters (4, 6, 40).

La présente invention concerne un dispositif de transmission d'énergie électrique (1, 39) comprenant au moins un convertisseur de courant (4, 6, 40). Chaque convertisseur de courant (4, 6, 40) présente des éléments de phase (10, 11, 12, 13, 14, 15, 27, 28, 29) qui disposent respectivement d'un agencement d'éléments de commutation (10a...10i, 11a... 11i, 12a...12i, 13a...13i, 14a... 14i, 15a...15i, 10a' ... 10i', 11a' ... 11i', 12a' ...12i') comprenant chacun au moins deux semi-conducteurs de puissance déconnectables (22, 23), au moins deux diodes de marche à vide (24, 25) connectées parallèlement aux semi-conducteurs de puissance et des systèmes d'accumulation d'énergie (26). L'objectif de la présente invention est de mettre au point un tel dispositif avec lequel les caractéristiques de transmission dans/entre des réseaux de distribution d'énergie sont améliorées. A cette fin, des systèmes (16, 17, 18, 19, 43, 44, 45) sont prévus pour réguler le convertisseur de courant, de manière à pouvoir commander l'angle de phase nulle, l'amplitude et/ou la valeur instantanée d'une tension alternative d'un réseau de transmission qui peut être connecté au dispositif et/ou la tension continue et le courant continu d'une ligne de tension continue qui relie au moins un des convertisseurs de courant à une source de tension continue et/ou la tension continue et le courant continu d'au moins trois convertisseurs de courants (4, 6, 40) reliés les uns aux autres.

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