Low voltage ride through

H - Electricity – 02 – J

Patent

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Details

H02J 3/38 (2006.01) H02J 3/18 (2006.01)

Patent

CA 2728849

A system for connecting a wind turbine generator to a utility power network includes a first power converter that converts an AC signal from the wind turbine generator to a DC signal and supplies a controlled amount of reactive current to the wind turbine generator The system also includes a second power converter, connected in series with the first converter, which converts the DC signal from the first power converter to a line-side AC signal and supplies a controlled amount of current to the utility power network. A power dissipation element is coupled to the first and second power converters for dissipating power from the first power converter.

L'invention porte sur un système pour connecter un générateur éolien à un réseau de distribution d'électricité, lequel système comprend un premier convertisseur de puissance qui convertit un signal de courant alternatif (CA) provenant du générateur éolien en un signal de courant continu (CC) et fournit une quantité régulée de courant réactif au générateur éolien. Le système comprend également un second convertisseur de puissance, connecté en série au premier convertisseur, qui convertit le signal CC provenant du premier convertisseur de puissance en un signal CA côté ligne et fournit une quantité régulée de courant au réseau de distribution d'électricité. Un élément de dissipation d'énergie est couplé aux premier et second convertisseurs de puissance pour dissiper de l'énergie provenant du premier convertisseur de puissance.

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