G - Physics – 05 – F
Patent
G - Physics
05
F
G05F 1/70 (2006.01) H02J 3/18 (2006.01)
Patent
CA 2558253
The invention features a system for connection to a utility power network. The system includes a reactive power compensation device (10) coupled to the network and configured to transfer reactive power between the utility power network and the reactive power compensation device; a capacitor system (50a, 50b) configured to transfer capacitive reactive power between the utility power network and the capacitor system; an electro-mechanical switch (52) for connecting and disconnecting the capacitor system to the utility power network; an interface (56) associated with the electro-mechanical switch; a controller (60) configured to provide control signals for controlling the electro-mechanical switch; and a communication channel (54) for coupling the controller to the interface associated with the electro-mechanical switch. The electro-mechanical switch, interface, controller, and communication channel together are configured to connect or disconnect the capacitor system from the utility power network within about three line cycles or less of the nominal voltage frequency when a fault condition is detected on the utility power network. The system includes a reactive power compensation device coupled to the network and configured to transfer reactive power between the utility power network and the reactive power compensation device; a capacitor system configured to transfer capacitive reactive power between the utility power network and the capacitor system; an electro-mechanical switch for connecting and disconnecting the capacitor system to the utility power network; an interface associated with the electro-mechanical switch; a controller configured to provide control signals for controlling the electro-mechanical switch; and a communication channel for coupling the controller to the interface associated with the electro-mechanical switch. The electro- mechanical switch, interface, controller and communication channel together are configured to connect or disconnect the capacitor system from the utility power network within about three line cycles or less of he nominal voltage frequency when a fault condition is detected on the utility power network.
L'invention concerne un système à connecter à un réseau d'énergie utilitaire. Ce système comprend un dispositif de compensation de puissance réactive (10) couplé au réseau et destiné à transférer la puissance réactive entre le réseau d'énergie utilitaire et le dispositif de compensation de la puissance réactive; un système condensateur (50a, 50b) destiné à transférer la puissance réactive capacitive entre le réseau d'énergie utilitaire et le système condensateur; un interrupteur électro-mécanique (52) permettant de connecter et de déconnecter le système condensateur au réseau d'énergie utilitaire ; une interface (56) associée à l'interrupteur électro-mécanique; un contrôleur (60) destiné à céder des signaux de commande permettant de commander l'interrupteur électro-mécanique; et un canal de communication (54) permettant de coupler le contrôleur à l'interface associée à l'interrupteur électro-mécanique. L'interrupteur électro-mécanique, l'interface, le contrôleur et le canal de communication permettent ensemble de connecter et déconnecter le système condensateur au/du réseau d'énergie utilitaire dans un maximum d'environ trois cycles linéaires de la fréquence tension nominale lorsqu'un état d'erreur est détecté dans le réseau d'énergie utilitaire.
Diaz de Leon John A. II
Folts Douglas C.
Kehrli Arnold P.
Vareka William A.
American Superconductor Corporation
Osler Hoskin & Harcourt Llp
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