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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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,... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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,... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |