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Peter Flamang, Marcel De Wilde, Roger Bogaert: Drive assembly for wind turbines. Hansen Transmissions International, Young & Thompson, March 14, 2006: US07011598 (20 worldwide citation)

A drive assembly for a wind turbine includes a rotor hub, a supporting structure, a planetary gear transmission unit having sun, planet and ring gears and a planet carrier. The ring gear is non-rotatably secured to the supporting structure. A main bearing rotatably supports the rotor hub and planet ...


82
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 ...


83
Henrik Stiesdal: Wind farm and method for controlling the same. Siemens Aktiengesellschaft, October 5, 2010: US07808126 (20 worldwide citation)

A method for controlling dynamic power factor or the reactive power of a wind farm is provided. The wind farm comprises a number of wind turbines connected to a utility grid driven with a requested power factor or a requested reactive power. The wind turbine output voltage is controlled to a specifi ...


84
Jan Karlsson: Improvements in wind turbine having a wing-profiled diffusor. KB Vindkraft i Goteborg, August 4, 1987: US04684316 (19 worldwide citation)

Arrangement for wind turbines which comprise not only a rotor (2) which can be caused to rotate about a shaft by a flow of air moving essentially in the direction of the shaft from an inlet side towards an outlet side, but also an annular body (1) enclosing the rotor in a concentric fashion, said bo ...


85
Ole Gunneskov, Nicholas Dudley Barlow, Mark Hancock, Tomas Vronsky: Wind turbine blade. Neg Micon, Harness Dickey & Pierce, March 17, 2009: US07503752 (19 worldwide citation)

The invention relates to a wind turbine blade comprising a number of pre-fabricated strips arranged in a sequence along the outer periphery. The strips consist of a fibrous composite material, preferably carbon fibers, and consist of a wooden material, preferably plywood or wooden fibers held in a c ...


86
Monitoring and data processing equipment for wind turbines and predictive maintenance system for wind power stations. Gamesa Eolica Soc Uniperso, May 18, 2005: EP1531376-A1 (19 worldwide citation)

A predictive maintenance system for wind parks, the wind park comprising a group of wind turbines (Ai), a communications network (RS) and a supervision and control system (ST). The predictive maintenance system comprises a monitoring and processing equipment (SMP) connected to the control system (PL ...


87
Karsten Andersen, Scott Landrum: System and process for transporting wind turbines. Vestas American Wind Technology, Thelen Reid Brown Raysman & Steiner, May 1, 2007: US07210882 (18 worldwide citation)

A system is used to transport wind turbines on railroad cars. The wind turbines are partially disassembled into four types of components—nacelles, blades, rotor hubs and tower sections. The blades are stored in cargo containers suitable for use in multi-mode transportation of freight by ship, rail a ...


88
Kermit I Harner, John P Patrick, Kenneth F Vosseller: Blade feathering system for wind turbines. United Technologies Corporation, John Swiatocha, July 31, 1984: US04462753 (18 worldwide citation)

A blade feathering system for wind turbines includes a feather actuator (299), control means (330 and 335) operatively connected thereto and an adjustment means (340) operatively connected to the control means for selectively varying the rate of operation of the feather actuator for feathering the w ...


89
Patricio E Delgado, Barry A Holmes: Vertical axis wind turbines. P I Specialist Engineers, Birch Stewart Kolasch & Birch, June 23, 1981: US04274809 (18 worldwide citation)

A vertical wind turbine having vertical blades, each blade being connected intermediate its ends by a hinge to a support arm having a hub that enables the blades to rotate around a vertical axis, a tie wire connected to the blade at positions spaced along the blade from the hinge, said tie wire enga ...


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