Luetze Hans Henning, Rieken Stefan, Meyer Dietmar: Wind farm and method for operating same. Gen Electric, October 13, 2004: EP1467463-A1 (23 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 ...

Letas Heinz Hermann, Limbeck Volker, Scheibe Klaus, Lehmann Eberhard, Wilmes Thomas, Venker Michael: Lightning protection system for wind turbines. Repower Systems, Stemmann Technik, August 31, 2005: EP1568883-A2 (23 worldwide citation)

The wind energy generator has a propeller (2) driven generator in a housing (4) that is mounted on a pillar (5). The system is protected against lightning strikes (1) by a conductor system (10,11,12) coupled to ground (7). The system uses a slip ring and brush to connect between rotary and stationar ...

Emilian Mieczyslaw Moroz: Multi-piece wind turbine rotor blades and wind turbines incorporating same. General Electric Company, Armstrong Teasdale, June 3, 2008: US07381029 (22 worldwide citation)

A multisection blade for a wind turbine includes a hub extender having a pitch bearing at one end, a skirt or fairing having a hole therethrough and configured to mount over the hub extender, and an outboard section configured to couple to the pitch bearing.

Zancai Lucio: (De) Flügel für windturbinen mit vertikaler drehachse, (En) Blade for wind turbines with a vertical rotational axis. Ropatec, Zancai Lucio, OBEROSLER Ludwig, November 27, 2008: WO/2008/141813 (22 worldwide citation)

(EN) The invention relates to a blade for wind turbines with a vertical rotational axis, said blade being supported by a single arm (2), which projects radially from a hub (1) that is mounted to rotate (R) around the vertical axis (A). Said blade has a substantially elliptical linear (3) or hastate ...

James C Bradley, Sunil K Jain, Rodney J Klinger, Joseph T Penaloza: Air power energy transformation to electrical energy for hybrid electric vehicle applications. International Truck Intellectual Property Company, Jeffrey P Calfa, Mark C Bach, Gerald W Askew, September 7, 2010: US07789182 (21 worldwide citation)

A vehicle having one or more small vehicle-mounted electricity generating wind turbines located within an area of wind recirculation. The electricity generated is used to recharge vehicle batteries, partially power an auxiliary electric propulsion motor, or supply vehicle parasitic loads.

Allan P Henderson: Method of forming a perimeter weighted foundation for wind turbines and the like. Jacobson Holman PLLC, January 2, 2007: US07155875 (21 worldwide citation)

A perimeter weighted foundation has a central pier pedestal and an enlarged base spaced outwardly and extending below the pedestal. The enlarged base includes an outer concentric perimeter wall section with a radially extending, disk-shaped spread section interconnecting the bottom of the pedestal s ...

Lorenzo Battisti: Anti-icing system for wind turbines. Cesari and McKenna, Patricia A Sheehan, December 29, 2009: US07637715 (21 worldwide citation)

A de-icing and anti-icing arrangement for a Wind Energy Converting System (WECS), a WECS comprising a de-icing and anti-icing arrangement and a method for preventing and eliminating ice accretion on the rotor blades of a WECS are provided. The WECS comprises a tower, a rotor having a plurality of bl ...

Emilian Mieczyslaw Moroz, Kirk Gee Pierce: Methods and apparatus for reduction of asymmetric rotor loads in wind turbines. General Electric Company, James E McGinness Esq, Armstrong Teasdale, October 10, 2006: US07118339 (21 worldwide citation)

A method for reducing load and providing yaw alignment in a wind turbine includes measuring displacements or moments resulting from asymmetric loads on the wind turbine. These measured displacements or moments are used to determine a pitch for each rotor blade to reduce or counter asymmetric rotor l ...

Shashikanth Suryanarayanan, Aaron Avagliano, Corneliu Barbu: Vibration damping method for variable speed wind turbines. General Electric Company, Fletcher Yoder, September 9, 2008: US07423352 (21 worldwide citation)

A vibration damping technique for a wind turbine system is described. The wind turbine system includes a vibration damper, which provides a variable signal to control torque produced by a generator of the wind turbine system. The variable signal is based on generator speed and has a first local peak ...

Thomas L Clark: Windjet turbine. Dennis T Griggs, March 5, 2002: US06352473 (21 worldwide citation)

A roof-mounted wind turbine includes turbine vanes that are linear-shaped and do not have the conventional convex curvature. Additionally, the turbine vanes are made in common with one another or with a common turbine component, so that each vane does not require individual handling nor individual a ...

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