1
Amir S Mikhail, Kevin L Cousineau, Lawrence H Howes, William Erdman, William Holley: Variable speed distributed drive train wind turbine system. Clipper Windpower Technology, Owen L Lamb, May 9, 2006: US07042110 (129 worldwide citation)

A variable speed wind turbine employing a rotor connected to a multiplicity of synchronous generators with wound field or permanent magnet rotors. A passive rectifier and an inverter are used for power transfer back to the grid. A Turbine Control Unit (TCU) commands a required generator torque based ...


2
Amir S Mikhail, Geoffrey F Deane: Retractable rotor blades for power generating wind and ocean current turbines and means for operating below set rotor torque limits. Clipper Windpower Technology, Owen L Lamb, April 27, 2004: US06726439 (50 worldwide citation)

A wind or water flow energy converter comprising a wind or water flow actuated rotor assembly. The rotor comprises a plurality of blades, wherein the blades of are variable in length to provide a variable diameter rotor. The rotor diameter is controlled to fully extend the rotor at low flow velocity ...


3
William Erdman, Kevin L Cousineau, Amir S Mikhail: Wind turbine generator apparatus with utility fault ride-through capability. Clipper Windpower Technology, Owen L Lamb, October 7, 2008: US07432686 (41 worldwide citation)

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 ...


4
Kitchener Clark Wilson: Wind flow estimation and tracking using tower dynamics. Clipper Windpower Technology, Owen L Lamb, January 8, 2008: US07317260 (29 worldwide citation)

A turbine control system for a variable speed electrical generator in a wind turbine mounted atop a support tower. The wind turbine converts wind energy into a driving torque applied to the generator. The control system includes a turbine support tower position sensor and may also include other towe ...


5
William Erdman, Kevin L Cousineau, Amir S Mikhail: Generator with utility fault ride-through capability. Clipper Windpower Technology, Owen L Lamb, June 19, 2007: US07233129 (25 worldwide citation)

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 ...


6
James G P Dehlsen: Mechanism for extendable rotor blades for power generating wind and ocean current turbines and means for counter-balancing the extendable rotor blade. Clipper Windpower Technology, Owen L Lamb, August 2, 2005: US06923622 (24 worldwide citation)

A power generating system wherein a turbine is mounted on top of a tower or tethered underwater. The turbine includes a rotor having a main blade section connected to a rotor hub and an extender section. An adjusting device positions the extender section between a retracted position within the main ...


7
James G P Dehlsen: Extendable rotor blades for power generating wind and ocean current turbines within a module mounted atop a main blade. Clipper Windpower Technology, Fay Sharpe, September 1, 2009: US07582977 (22 worldwide citation)

A power generating system wherein a turbine is mounted on top of a tower or tethered underwater. The turbine includes a rotor having a main blade section connected to a rotor hub and an extender housing mounted on a top surface of the main blade section. The extender housing has an extender blade st ...


8
Kevin L Cousineau: Distributed static var compensation (DSVC) system for wind and water turbine applications. Clipper WindPower Technology, Owen L Lamb, August 22, 2006: US07095597 (22 worldwide citation)

A power generating system wherein a variable speed turbine is mounted on top of a tower or tethered underwater. The reactive component of turbine generated electrical power is corrected automatically through electronic switched power-factor capacitor banks that are divided into sub-system modules co ...


9
Lawrence H Howes, Amir S Mikhail, Geoff F Deane: Method of controlling electrical rotating machines connected to a common shaft. Clipper Windpower Technology, Owen L Lamb, February 21, 2006: US07002259 (20 worldwide citation)

A controller for high torque, low RPM wind turbines and ocean current turbines. The turbine consists of a large, input power shaft-mounted, rotating bull-gear with stationary powertrains mounted around its periphery. The gear teeth on the bull-gear rotate past the teeth on pinions, causing the pinio ...


10
William Erdman, Kevin L Cousineau, Amir S Mikhail: Generator with utility fault ride-through capability. Clipper Windpower Technology, Owen L Lamb, March 4, 2008: US07339355 (20 worldwide citation)

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 ...



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