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
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 ...


3
Lawrence H Howes: Generator stator voltage control through DC chopper. Chipper Windpower Technology, Owen L Lamb, August 23, 2005: US06933705 (4 worldwide citation)

A method and apparatus of stator voltage control for an induction generator. Each phase of the induction generator stator is connected through a secondary coil of a transformer to a utility grid. A stator voltage control circuit is connected in parallel with a primary coil of the transformer. The st ...


4
Lawrence H Howes, Amir S Mikhail, Geoff F Deane: Method of controlling electrical rotating machines connected to a common shaft. Owen L Lamb, March 27, 2003: US20030057703-A1 (1 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 ...


5
Amir S Mikhail, Kevin L Cousineau, Lawrence H Howes, William Erdman, William Holley: Variable speed distributed drive train wind turbine system. Owen L Lamb, January 20, 2005: US20050012339-A1

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 ...


6
Lawrence H Howes: Method and apparatus for load testing electrical systems. Irell & Manella, May 15, 2003: US20030090257-A1

The invention relates to an apparatus and method for load testing electrical systems using a transformer having its primary windings connected to a power source and its secondary windings coupled to the device under test. The test apparatus may be used to test high power switching circuits to be imp ...



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