41
Emilian Mieczyslaw Moroz: Methods and apparatus for rotor load control in wind turbines. General Electric Company, James E McGinness, Armstrong Teasdale, August 22, 2006: US07095129 (32 worldwide citation)

A wind turbine having a rotor, at least one rotor blade, and a plurality of generators, of which a first generator is configured to provide power to an electric grid and a second generator is configured to provide power to the wind turbine during times of grid loss. The wind turbine is configured to ...


42
Jens Fortmann: Method for operating or controlling a wind turbine and method for providing primary control power by means of wind turbines. REpower Systems, Morrison & Foerster, May 5, 2009: US07528496 (32 worldwide citation)

A method for operating at least one wind turbine with a rotor and an electric generator coupled to the rotor for delivering electrical power into an energy distribution system with the aid of a control device ensures that the wind turbine operates within its operating range. The wind turbine is cont ...


43
Kevin L Cousineau: Control systems for controlling a wind turbine. Zond Systems, Cushman Darby & Cushman, January 11, 1994: US05278773 (32 worldwide citation)

A distributed module control system for controlling a wind turbine using multiple controls and monitors comprising multiple modules that include microcontrollers, and having data input terminals and data output terminals; high level logic circuitry interconnecting the modules via selected data input ...


44
Frederick D Ferguson: Systems and methods for tethered wind turbines. Magenn Power, Buckley Maschoff & Talwalkar, February 26, 2008: US07335000 (31 worldwide citation)

According to some embodiments, systems and methods for tethered wind turbines may be provided. In some embodiments, a system may comprise an airborne body extending horizontally along an axis between a first point and a second point, wherein the body is at least partially filled with a gas. The syst ...


45
Glidden S Doman: Minimization of the effects of yaw oscillations in wind turbines. United Technologies Corporation, John Swiatocha, May 7, 1985: US04515525 (31 worldwide citation)

Yaw (fishtail) oscillations in large wind turbines (10) are minimized by damping provided by a drive motor (65) connecting the turbine to the supporting tower (50) therefor at, for example, a yaw bearing (45). The drive motor drives the wind turbine in yaw and maintains desired yaw settings of the t ...


46
Rajindar S Rangi, Peter South: Overspeed spoilers for vertical axis wind turbine. Canadian Patents and Development, James R Hughes, April 4, 1978: US04082479 (31 worldwide citation)

An overspeed spoiler for vertical axis wind turbines of the type having straight or curved airfoil blades attached to a vertical shaft formed by a relatively thin flat blade shaped spoiler element hinge mounted on the trailing edge, leading edge, or at a central position of a portion of the airfoil ...


47
Robert Nason Thomas: Coupled vortex vertical axis wind turbine. John Vanden Bosche, August 31, 2004: US06784566 (31 worldwide citation)

A pair of vertical axis wind turbines are arranged in close proximity to each other so that their vortices interact with each other to provide enhanced aerodynamic efficiency. The wind turbines are spaced as closely as possible while providing for machine and personnel safety. Adjacent wind turbines ...


48
David A Skelskey: Wind turbines. Chicago Province of the Society of Jesus, FitzGibbon Roehrig Greenawalt & Stone, September 13, 1983: US04403916 (28 worldwide citation)

A wind turbine having a generally vertically extending support tower upon which are mounted a front or blade section and a rear or tail section. The front section includes a generally horizontal drive shaft which is connected to a vertical drive shaft in the support tower. The rear or tail section i ...


49
Hans L├╝tze, Stefan Rieken, Dietmar Meyer: Wind farm and method for operating same. General Electric Company, Blakely Sokoloff Taylor & Zafman, May 13, 2008: US07372173 (28 worldwide citation)

A wind farm with at least two wind turbines (1, 2, 3, 4) connected to a power grid is provided, said wind farm further comprising a control unit (5) connected to said at least two wind turbines (1, 2, 3, 4), and a sensor unit (6) connected to said power grid and said control unit (5), wherein said s ...


50
Kevin L Cousineau: Microcontroller based control system for use in a wind turbine. Zond Systems, Cushman Darby & Cushman, June 6, 1995: US05422826 (27 worldwide citation)

A distributed module control system for controlling a wind turbine using multiple controls and monitors comprising multiple modules that include microcontrollers, and having data input terminals and data output terminals; high level logic circuitry interconnecting the modules via selected data input ...



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