Prime-mover dynamo plants – Electric control – Fluid-current motors
Reexamination Certificate
2011-06-14
2011-06-14
Ponomarenko, Nicholas (Department: 2839)
Prime-mover dynamo plants
Electric control
Fluid-current motors
C322S029000, C322S037000
Reexamination Certificate
active
07960849
ABSTRACT:
Method and system of control of the converter of an electricity generation facility of the type which comprises at least one electric generator, such as a wind generator, connected to an electricity network, in the presence of voltage sags in said network, the electric generator being a double-fed asynchronous generator formed by two windings, a winding in the stator, directly connected to the network, and a winding in the rotor which is fed on normal regime by said converter which imposes on it a predetermined voltage current called setpoint current. In the event of a voltage sag occurring, the converter imposes a new setpoint current which is the result of adding to the previous setpoint current a demagnetizing current which generates a flow in the rotor winding opposed to the free flow, consequently reducing the voltage in converter connectors.
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Gubia Villabona Eugenio
Lopez Taberna Jesus
Marroyo Palomo Luis Maria
Sanchis Gurpide Pablo
Ponomarenko Nicholas
Sughrue & Mion, PLLC
Universidad Publica de Navarra
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