61
Luetze Hans Henning, Rieken Stefan, Meyer Dietmar: Wind farm and method for operating same. Gen Electric, October 13, 2004: EP1467463-A1 (24 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 ...


62
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 (24 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 ...


63
Kermit I Harner, Frank R Niessen, Robert Sherman: Blade pitch angle control for large wind turbines. United Technologies Corporation, John Swiatocha, April 7, 1987: US04656362 (24 worldwide citation)

A blade pitch angle control system for a wind turbine includes an improved control means (95) for providing a minimum pitch angle reference signal indicative of desired blade pitch at wind velocities less than rated. The control means includes means (35 and 30) for providing signals indicative of ge ...


64
Thomas L Clark: Windjet turbine. Dennis T Griggs, March 5, 2002: US06352473 (24 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 ...


65
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 (23 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 ...


66
Thomas L Clark: Windjet turbine. Dennis T Griggs, June 24, 2003: US06582291 (23 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 ...


67
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 (22 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.


68
Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo: Reactive power control for operating a wind farm. Ingeteam Energy, Sughrue Mion PLLC, May 12, 2009: US07531911 (22 worldwide citation)

A system and method of reactive power regulation in a wind farm having a plurality of wind turbines that provides optimum control of the reactive power compensation in the wind farm and is able to keep a reactive power reserve in order to support eventual grid contingencies.


69
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 ...


70
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 ...



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