Electricity: single generator systems – Automatic control of generator or driving means
Reexamination Certificate
2007-06-19
2007-06-19
Schuberg, Darren (Department: 2834)
Electricity: single generator systems
Automatic control of generator or driving means
C322S028000, C322S044000, C322S045000, C322S025000, C290S00100C, C290S002000, C290S007000, C307S067000, C307S066000, C363S037000, C363S040000
Reexamination Certificate
active
10981364
ABSTRACT:
A wind powered turbine with low voltage ride-through capability. An inverter is connected to the output of a turbine generator. The generator output is conditioned by the inverter resulting in an output voltage and current at a frequency and phase angle appropriate for transmission to a three-phase utility grid. A frequency and phase angle sensor is connected to the utility grid operative during a fault on the grid. A control system is connected to the sensor and to the inverter. The control system output is a current command signal enabling the inverter to put out a current waveform, which is of the same phase and frequency as detected by the sensor. The control system synthesizes current waveform templates for all three-phases based on a sensed voltage on one phase and transmits currents to all three-phases of the electrical system based on the synthesized current waveforms.
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Cousineau Kevin L.
Erdman William
Mikhail Amir S.
Clipper Windpower Technology, Inc.
Lamb Owen L.
Mohandesi Iraj A.
Schuberg Darren
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