Match Document Document Title
US20130108443 METHODS FOR OPERATING A WIND TURBINE  
A method for operating a wind turbine having at least one blade includes determining an ambient air operating envelope and controlling a power output of the wind turbine at least partially based...
US20140255185 METHODS AND SYSTEMS FOR ALLEVIATING LOADS IN OFF-SHORE WIND TURBINES  
Control methods and systems of a wind turbine belonging to an off-shore wind park that use, in case of malfunction of the load measuring system, one of the following pitch vectors for the...
US20120087792 EMERGENCY FEATHER RATE LIMIT WITH PROPORTIONALITY TO OPERATING PITCH ANGLE AND ENERGY STORAGE VOLTAGE  
A system and method are disclosed for an emergency feathering control of a wind turbine during emergency feathering of the turbine blades that is independent of a turbine control and pitch control...
US20110171021 Double-Stacked Blade Ceiling Fan And Method Of Operation And Method Of Circulating Air  
An embodiment of a ceiling fan assembly has a motor rotatably mounted to a shaft and adapted to be mounted to an extent of a substantially planar support surface. A first set of fan blades are...
US20110103952 WIND TURBINE ROTOR BLADE WITH VARIABLY ACTUATABLE POROUS WINDOW  
A wind turbine blade includes a porous window defined in the suction side of the blade. The porous window includes a plurality of holes defined therein. An air manifold within the internal cavity...
US20150233258 TURBINE BUCKET AND METHOD FOR BALANCING A TIP SHROUD OF A TURBINE BUCKET  
The present application and the resultant patent provide a turbine bucket for a gas turbine engine. The turbine bucket may include an airfoil, a tip shroud positioned radially outward from the...
US20120282092 METHOD AND DEVICES FOR COMPACT FORCED VELOCITY TURBINES  
Betz's law establishes an efficiency limit of 0.59 for wind turbines. Increasing turbine output power requires making the blades larger thereby increasing the radius of the turbine, which...
US20110142623 SYSTEM AND METHOD OF DISTRIBUTING AIR WITHIN A WIND TURBINE  
An air distribution system for use with a wind turbine. The wind turbine includes a nacelle that is coupled to a tower and a rotor that is rotatably coupled to the nacelle with a rotor shaft. The...
US20150003983 Method for operating a wind turbine generator  
A method for modifying the power output of a wind turbine generator. The power output of a wind turbine generator can be modified based on the rate of fatigue and/or damage calculated for...
US20150232176 SYSTEM AND METHOD FOR AVOIDING INADVERTANT ENTRY INTO AN UNSAFE VERTICAL DESCENT SPEED REGION FOR ROTORCRAFT  
A flight control system having a control law, the control law operable to generate a modified pitch command, the modified pitch command representing a greater amount of collective pitch compared...
US20150260158 WIND TURBINE RADIAL VELOCITY SYSTEM  
A wind turbine system may be configured with at least one wind turbine having an exterior surface. A distribution pipe positioned between the exterior surface and a drag feature with the drag...
US20120219418 GPS AUTOMATED TRACKING OF MOBILE MONITORING UNITS  
A method of monitoring a wind turbine, including the steps of: attaching a condition monitoring (CM) module to a wind turbine; determining the location of the CM module based on information...
US20110165002 CEILING FAN  
A ceiling fan comprising: a fan motor and blade assembly, a mounting tube for suspending the fan motor and blade assembly from a ceiling, and a power supply mounted within the mounting tube...
US20130089421 GAS TURBINE ENGINE AIRFOIL TIP RECESSES  
A gas turbine engine airfoil extending from an airfoil base to an airfoil tip at a free end of the airfoil and from a leading edge to a trailing edge of the airfoil has at least one recess...
US20140140841 TURBINE BUCKET SHROUD ARRANGEMENT AND METHOD OF CONTROLLING TURBINE BUCKET INTERACTION WITH AN ADJACENT TURBINE BUCKET  
A turbine bucket shroud arrangement for a turbine system includes a contact region of a tip shroud, wherein the contact region is in close proximity to an adjacent tip shroud. Also included is a...
US20120134810 SYSTEM AND METHOD FOR DETECTING AND/OR CONTROLLING LOADS IN A WIND TURBINE  
A system for detecting loads in a wind turbine is disclosed. In one aspect, the system may generally include a shaft and first and second pillow blocks receiving portions of the shaft. The second...
US20140271186 Blade Balancing  
A system and method for pressure based load measurement are provided. The system and method measure at least one pressure differential on an airfoil and determine at least one aerodynamic load...
US20120308383 COOLING AND CLIMATE CONTROL SYSTEM AND METHOD FOR AN OFFSHORE WIND TURBINE  
A system and method to cool the air inside the nacelle and the heat generating components, particularly of an offshore wind turbine is presented. The ambient air first enters an air handling unit...
US20140169964 CONTROL SYSTEM AND METHOD FOR MITIGATING LOADS DURING YAW ERROR ON A WIND TURBINE  
A control system for mitigating loads on a wind turbine comprising a plurality of blades in yaw error events includes a yaw error calculation unit for calculating a yaw error of the wind turbine,...
US20120148402 Method for Operating a Pitch-Controlled Wind Turbine  
Method for operating a pitch-controlled wind turbine, in which a set-point value for the generator torque (M) is prescribed in dependence upon a rotational speed (n) of the generator or of the...
US20150147174 COORDINATED CONTROL OF A FLOATING WIND TURBINE  
The present invention relates to methods, apparatus and computer program products for coordinating the control of a floating wind turbine (101) between a wind turbine controller (111) and a...
US20130309088 Method for Protecting Wind Turbine Equipment in Fire Event  
A method for protecting wind turbine equipment in a fire event is disclosed. The method may include providing a wind turbine and a fire detection and suppression system capable of detecting a fire...
US20140044541 INSTALLATION AND METHOD FOR EXPLOITING WIND ENERGY  
The invention relates to the field of methods and floating platforms for exploiting wind energy offshore. In particular, the invention provides a floating platform (1) anchored to at least one...
US20120134808 WIND TURBINE OIL LUBRICATION PUMP  
According to the present disclosure, a pressurization system for use in a wind turbine, the wind turbine including at least one rotor blade to capture wind energy and a shaft for transferring the...
US20140271185 DETERMINING LOADS USING VARIOUS SENSOR LOCATIONS  
A system and method for pressure based load measurement are provided. The system and method measure at least one pressure differential on an airfoil and determine at least one aerodynamic load...
US20130125632 DETERMINING AN ACCUMULATED LOAD OF A WIND TURBINE IN ANGULAR SECTORS  
A method for determining a total mechanical load of a wind turbine is provided. A present load signal indicative of a present load of a wind turbine base structure is obtained, wherein the present...
US20140064961 METHOD FOR BACKING UP AND RECOVERING BLADE ZERO POINT OF PITCH DRIVE SYSTEM FOR WIND TURBINE AND PITCH DRIVE SYSTEM FOR WIND TURBINE  
A pitch drive system for a wind turbine includes a pitch drive motor, a first position detector, a driver, a second position detector, and a controller. When the blades rotate to a mechanical zero...
US20130045099 Compound Rotating Handle  
A paddle apparatus for standup paddling of surfboards or like water craft, having a plurality of hand grip portions rotatably mounted relative to the paddle shaft, and a means of paddling whereby...
US20120134811 SYSTEM AND METHOD FOR DETECTING AND/OR CONTROLLING LOADS IN A WIND TURBINE  
A system for detecting loads in a wind turbine is disclosed. In one aspect, the system may generally include a shaft, first and second pillow blocks receiving portions of the shaft and a bedplate...
US20140017081 METHOD OF CONTROLLING PITCH SYSTEMS OF A WIND TURBINE  
A method is provided for controlling the pitch systems of a plurality of pitch systems of a wind turbine. The method includes generating a main pitch control signal for the pitch systems on the...
US20110142619 Wind Turbine, Control System, And Method For Optimizing Wind Turbine Power Production  
A wind turbine includes a generator and a control system. The control system is configured to determine whether a predefined amount of turbulence will be induced to the wind turbine by a wake zone...
US20110293419 System and Methods for Wind Energy Recapture From a Non Natural Wind Source  
The present invention relates to a system and method for harvesting wind energy from air exhausted by other systems. Ventilation and heat exchange systems force air movement using fans. Exhaust...
US20100326101 Self-Contained Water Generation System  
A self-contained water generation system is disclosed. The present system allows for the generation of water using only wind power and standard air conditioning components. A wind turbine drives,...
US20130094961 ESTIMATION OF WIND PROPERTIES USING A LIGHT DETECTION AND RANGING DEVICE  
Embodiments of the invention provide methods, systems, and apparatus for determining a property of wind approaching a wind turbine. A light detection and ranging equipment may be used to determine...
US20130094960 ESTIMATION OF WIND PROPERTIES USING A LIGHT DETECTION AND RANGING DEVICE  
Embodiments of the invention provide methods, systems, and apparatus for determining a property of wind approaching a wind turbine. A light detection and ranging equipment may emit pulsed...
US20110171022 WIND TURBINE WITH A YAW SYSTEM AND METHOD FOR THE YAW ADJUSTMENT OF A WIND TURBINE  
A wind turbine comprising a tower and a nacelle which is rotatably mounted on the tower and whose alignment is adjustable by means of a yaw system, wherein the yaw system has at least one...
US20120321464 Method for acoustically monitoring a wind turbine, acoustic monitoring system for a wind turbine and re-equipment kit  
A method for acoustically monitoring a wind turbine, in particular for monitoring the existence of loose objects inside the wind turbine is provided. A sound generated in a rotating part of the...
US20130108441 TURBINE BUCKET ANGEL WING FEATURES FOR FORWARD CAVITY FLOW CONTROL AND RELATED METHOD  
A turbine bucket includes a radially inner mounting portion, a shank radially outward of the mounting portion, a radially outer airfoil and a substantially planar platform radially between the...
US20150211488 FLOATING WIND TURBINE SAFETY SYSTEM  
The present invention relates to methods and apparatus for operating a safety system in a floating wind turbine. The floating wind turbine comprises one or more sensors 202, 203, and receives a...
US20130280066 METHODS AND SYSTEMS FOR OPERATING A WIND TURBINE IN NOISE REDUCED OPERATION MODES  
According to the present disclosure, a method of operating a wind turbine including operating the wind turbine in a noise reduction mode based on at least one set point of a wind turbine parameter...
US20110311359 YAW SYSTEM FOR A WINDMILL  
The present invention relates to a yaw system 5 for a windmill 1, the windmill comprising a tower 2 and a nacelle 3, the tower and the nacelle being joined by the yaw system and the yaw system...
US20140377065 METHOD FOR CONTROLLING A WIND TURBINE  
Method for controlling a wind turbine, comprising the steps of determining a boundary layer profile of the wind coming towards the wind turbine, determining the wind velocity at a predetermined...
US20110206507 SYSTEM AND METHOD OF MANIPULATING A BOUNDARY LAYER ACROSS A ROTOR BLADE OF A WIND TURBINE  
An air distribution system for manipulating a boundary layer of air across a wind turbine rotor blade. The wind turbine rotor blade includes at least one sidewall that defines a cavity therein....
US20140234103 METHOD AND SYSTEM FOR IMPROVING WIND FARM POWER PRODUCTION EFFICIENCY  
A method and system for improving power production efficiency on a wind farm having of a plurality of spatially distributed wind turbines is provided. The method includes receiving a wind...
US20140363290 Method And System For Monitoring A Gearbox Of A Wind Energy Installation And Corresponding Wind Energy Installation  
The invention relates to a method for monitoring a gearbox of a wind energy installation comprising. The invention further relates to a corresponding computer program product, a corresponding...
US20140037447 WIND TURBINE YAW CONTROL  
A method for operating a wind farm is provided. The method includes determining a wind condition, determining a wake-effect between at least two wind turbines forming at least a sub-set of the...
US20100143116 OPERATING A WIND TURBINE AT MOTOR OVER-TEMPERATURE CONDITIONS  
Methods and apparatus for continuing wind turbine operation when normal wind turbine motor control is unavailable due to overheating of one or more wind turbine control motors. Technical effects...
US20140377061 ACTIVE SYSTEMS AND METHODS FOR PRODUCING ULTRASONIC SOUND EMISSIONS FROM WIND TURBINES  
Methods for producing ultrasonic sound emissions from wind turbines, active systems for emitting ultrasonic sounds from wind turbines, and wind turbines are provided. In one embodiment, a method...
US20130039760 OIL MIST SEPARATION IN GAS TURBINE ENGINES  
A rotor stage is provided which comprises a shank passage for separating liquid from secondary air system (SAS) air. The shank passage is formed between a radially outer surface of a disc post, a...
US20140348650 APPARATUS FOR ADJUSTING THE YAW OF A WIND TURBINE  
The invention regards an apparatus for adjusting the yaw of a wind turbine adapted for mounting on a wind turbine comprising, a system for measuring the wind direction adapted, via a control...