A voltage source converter

H - Electricity – 01 – L

Patent

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Details

H01L 25/07 (2006.01) H01L 25/11 (2006.01)

Patent

CA 2718935

A Voltage Source Converter having at least one phase leg connected to opposite poles of a direct voltage side of the converter and comprising a series connection of switching elements (7!) including at least one energy storing capacitor and configured to obtain two switching states, namely a first switching state and a second switching state, in which the voltage across said at least one energy storing capacitor and a zero voltage, respectively, is applied across the terminals of the switching element, has semiconductor chips of said switching elements arranged in stacks (S) comprising each at least two semiconductor chips. The converter comprises an arrangement (39) configured to apply a pressure to opposite ends of each stack.

L'invention porte sur un convertisseur de source de tension ayant au moins une branche de phase connectée à des pôles opposés d'un côté tension continue du convertisseur et comprenant un montage série d'éléments de commutation (7') comprenant au moins un condensateur de stockage d'énergie et configurés pour obtenir deux états de commutation, à savoir un premier état de commutation et un second état de commutation, dans lesquels la tension aux bornes dudit au moins un condensateur de stockage d'énergie et une tension nulle, respectivement, sont appliquées aux bornes de l'élément de commutation, lequel convertisseur de source de tension a des puces de semi-conducteur desdits éléments de commutation agencées dans des empilements (S) comprenant chacun au moins deux puces de semi-conducteur. Le convertisseur comprend un agencement (39) configuré pour appliquer une pression aux extrémités opposées de chaque empilement.

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