07432686 is referenced by 44 patents and cites 69 patents.

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.

Title
Wind turbine generator apparatus with utility fault ride-through capability
Application Number
11/729196
Publication Number
7432686 (B2)
Application Date
March 27, 2007
Publication Date
October 7, 2008
Inventor
Amir S Mikhail
Santa Barbara
CA, US
Kevin L Cousineau
Lompoc
CA, US
William Erdman
Orinda
CA, US
Agent
Owen L Lamb
Assignee
Clipper Windpower Technology
CA, US
IPC
F03D 9/00
H02P 9/04
F02N 11/06
H02P 9/00
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