Electricity: power supply or regulation systems – For reactive power control – Using converter
Reexamination Certificate
2006-03-14
2006-03-14
Berhane, Adolf (Department: 2838)
Electricity: power supply or regulation systems
For reactive power control
Using converter
Reexamination Certificate
active
07012409
ABSTRACT:
A power converter circuit and associated triggering method for connecting a three-phase generator to an electrical network. The circuit includes a first direct connection of the generator to the network and a second connection of the generator to the network, through a four-quadrant converter which includes a first power converter, whose alternating voltage terminals are connected to the generator, and a second power converter, whose alternating voltage terminals are connected to the network. The triggering method for power compensation in the event of a short circuit is such that in a first period of time after the short, the second power converter outputs reactive power into the network; in a second period of time, the power converter feeds reactive power back into the network; and in a third period of time, the entire four-quadrant converter controls the gentle restarting, without loading the network with reactive power from the generator.
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Applied Designs of Variable Speed Wind Turbines and New Approaches Dejan Schreiber Application Manager, SEMIKRON International Sigmundstrasse 200, 90431 Nuremberg, Germany.
Otto Warneke Einstaz einer doppeltgespeisten Asynchronmaschine in der groβen Windenergieanlage Growian pp. 364-367 Anlagen, Systeme, Gerate.
Heilbronner Heinrich
Schreiber Dejan
Berhane Adolf
Cohen & Pontani, Lieberman & Pavane
SEMIKRON Elektronik GmbH & Co. KG
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