Electricity: single generator systems – Generator control
Reexamination Certificate
2007-03-27
2008-10-07
Ponomarenko, Nicholas (Department: 2834)
Electricity: single generator systems
Generator control
C290S04000F, C290S044000
Reexamination Certificate
active
07432686
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.
Cuevas Pedro J
Lamb Owen L.
Ponomarenko Nicholas
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