Matches 1 - 50 out of 158 1 2 3 4 >


Match Document Document Title
US20110002783 CEILING FAN  
A ceiling fan comprising a motor which rotates a plurality of blades provided in a horizontal direction, a shaft projecting from an upper portion of the motor, a pipe which is connected to an...
US20120134816 PILOT CIRCUITRY FOR CONTROLLING THE EMERGENCY FEATHERING OF A WIND TURBINE  
A pilot circuitry is disclosed for controlling the activation of an emergency feathering system of a wind turbine by means of a pilot pressure, wherein the pilot circuitry comprises at least two...
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...
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...
US20110103953 SYSTEMS AND METHOD OF ASSEMBLING AN AIR DISTRIBUTION SYSTEM FOR USE IN A ROTOR BLADE OF A WIND TURBINE  
A method of assembling an air distribution system for use in a rotor blade of a wind turbine wherein the rotor blade includes a sidewall extending from a blade root towards a blade tip. The method...
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...
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...
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...
US20120027591 SYSTEM AND METHODS FOR CONTROLLING THE AMPLITUDE MODULATION OF NOISE GENERATED BY WIND TURBINES  
In one aspect, a method for controlling the amplitude modulation of the noise generated by wind turbines is generally disclosed. The method may include determining a sound characteristic of a...
US20150093243 WIND TURBINE WITH A WIND SENSING APPARATUS  
A wind turbine including a rotor, a nacelle, a support structure for the nacelle and at least one wind sensing apparatus mounted on the support structure.
US20130094963 DISTRIBUTED PROPULSION SYSTEM AND METHOD OF CONTROL  
This invention relates to a method and apparatus for controlling power distribution in an electrical aircraft propulsive system having at least one electrical propulsion unit which includes a...
US20120121413 System And Method For Damping Vibrations In A Wind Turbine  
The invention relates to a wind turbine comprising a substantially tubular tower structure and one or more vibration damping systems. At least one of the one or more vibration damping systems...
US20080260531 Method for Regulating a Wind Energy Installation  
The invention relates to a method for operating installations (10), in particular wind energy installations (10), having at least one component (22) which endangers in particular flying animals,...
US20110135468 SYSTEMS AND METHODS FOR MONITORING A STRUCTURAL HEALTH OF A WIND TURBINE  
A method for monitoring a structural health of a wind turbine. The method includes transmitting, from a sensor to a controller, at least one monitoring signal indicative of a structural...
US20100143122 ACTIVE FLOW CONTROL SYSTEM FOR WIND TURBINE  
An active flow control (AFC) system for use with a wind turbine is provided. The wind turbine includes at least one rotor blade having at least one manifold extending at least partially...
US20090068013 Wind turbine, yaw system controller and yaw system for a wind turbine and method of reducing the acting on such a yaw system  
A method for reducing the loads acting on a wind turbine yaw system due to yawing moments which are induced to the yaw system by a rotor which comprises at least one rotor blade with a pitch...
US20110286843 DRIVE DEVICE FOR DRIVING SEVERAL AXLES  
A drive device for driving at least one first axle and one second axle (axle 1, axle 2, axle 3), comprising a first control device (1, 2, 3) which subjects the at least one first axle (axle 1,...
US20110293418 DEVICE AND METHOD FOR CONTROLLING WIND TURBINE  
In a conventional technique, a shutdown sequence indicating a sequential operation from a start of the feathering of a wind turbine to the stop is started in response to an alert signal caused by...
US20110223018 Control System, Wind Farm, And Methods Of Optimizing The Operation Of A Wind Turbine  
A control system for a wind turbine configured to generate an acoustic emission during operation includes a communication device. The communication device is configured to receive at least one...
US20100074748 Method For Operating A Wind Turbine, A Wind Turbine And Use Of The Method  
A method for operating a wind turbine having a rotor with a number of wind turbine blades, wherein the rotor's axis of rotation is tilted in relation to the direction of the incoming wind,...
US20140030089 WIND TURBINE LIFETIME ESTIMATOR  
A method of operating at least one wind turbine is described, comprising: determining a plurality of stress events of at least one component of the at least one wind turbine; determining at least...
US20100068057 METHOD FOR STOPPING A WIND TURBINE IN TWO STAGES  
A method for stopping a pitch controlled wind turbine comprising a rotor with at least one blade (11), a mechanical brake (31) on the high speed shaft, a pitch system ((21, 23, 25) for adjusting...
US20080145222 ACTIVE TOWER DAMPER  
A damper system for damping vibrations of a wind turbine having a tower, a nacelle, and at least one rotor blade is provided. The damper system includes a mass for damping vibrations of a wind...
US20100021299 ADJUSTABLE, SELF-ALIGNING ROTOR LOCKING DEVICE FOR AN AEROGENERATOR  
Wind turbine comprising a rotor, a nacelle frame (13) housing with electrical generation means coupled to the rotor hub (11), braking means and control means of the drive train rotational...
US20080069692 WIND TURBINE AND OPERATING METHOD THEREOF  
A pitch controller, uninterruptible power supply, and rotational speed detector are disposed in the rotor in a wind turbine. When a slip ring failure or wire breakage occurs, the pitch controller...
US20110103954 POWER TRANSMITTING SYSTEM THROUGH CABLES FOR AIRBORNE WIND-TYPE POWER GENERATION AND SAIL WINCH-DRIVING APPLICATIONS  
The present invention deals with a new system for transmitting energy through a cable (2) and interconnected pulleys (1, 3, 5). The traditional power transmission through pulleys sizes the system...
US20110291853 Remote Shut Down of Offshore Wind Turbine  
The method for initiating of shutting down a wind energy turbine comprises approaching the wind energy turbine by a vehicle like an aircraft, in particular a helicopter, a car or a boat, and...
US20100107633 SOLAR AND WIND HYBRID POWERED AIR-CONDITIONING/REFRIGERATION, SPACE-HEATING, HOT WATER SUPPLY AND ELECTRICITY GENERATION SYSTEM  
A system for environmental control includes a hybrid wind and solar energy collection subsystem; a temperature control subsystem having a thermo-mechanical engine; an electrical generating...
US20090097974 AEOLIAN SYSTEM COMPRISING POWER WING PROFILES AND PROCESS FOR PRODUCING ELECTRIC ENERGY  
An aeolian system is described for converting energy comprising at least one power wing profile (30) which can be driven from the ground immersed in at least one aeolian current (W) and a basic...
US20120070280 CONTROL SYSTEM FOR A WIND TURBINE AND METHOD OF OPERATING A WIND TURBINE BASED ON MONITORING A BEARING  
A method of operating a wind turbine having a bearing assembly, a shaft received therein, and at least one sub-system capable of altering a dynamic state of the wind turbine includes monitoring at...
US20090196747 COMPACT VARIABLE PITCH FAN  
A compact variable pitch fan has a hydraulic pitch change mechanism. A pitch change piston is constrained to follow reciprocating motion under hydraulic control within a peripheral hub from which...
US20130343888 WIND TURBINE AND A METHOD OF OPERATING A WIND TURBINE  
The invention provides a wind turbine comprising a rotatable drive train including at least one bearing (3) and a pump (4) for supply of a lubricant to the bearing (3). The wind turbine further...
US20130230400 METHOD AND SYSTEM FOR OPERATING A WIND TURBINE DURING A FAULT  
A method and a system for operating a wind turbine (10) during a fault. The system includes a pitch motor for rotating each rotor blade (18), second pitch sensors (72) for determining when the...
US20100034651 Ceiling fans with low solidity ratio  
An overhead fan system of a building comprises a ceiling fan underneath a nearby fire sprinkler head. The ceiling fan has particularly low fan solidity to minimize the fan obstructing the spray of...
US20100014969 WIND TURBINE WITH BLADE PITCH CONTROL TO COMPENSATE FOR WIND SHEAR AND WIND MISALIGNMENT  
A wind turbine or rotor load control compensates for moment imbalance in a wind turbine that includes a rotor having at least two variable pitch blades. The apparatus includes a conventional pitch...
US20100117371 WIND SYSTEM FOR CONVERTING ENERGY BY TRANSLATING ON A RAIL MODULES DRAGGED BY KITES AND PROCESS FOR PRODUCING ELECTRIC ENERGY THROUGH SUCH SYSTEM  
A wind system (1) is described for converting energy comprising at least one kite (2) that can be driven from ground immersed in at least one wind current (W) and at least one module (5) adapted...
US20110064573 SYSTEM AND METHODS FOR DETERMINING A MONITOR SET POINT LIMIT FOR A WIND TURBINE  
A method for controlling operation of a wind turbine is described. The wind turbine includes a rotor having a plurality of rotor blades. The method includes measuring an atmospheric condition...
US20090246020 Method For Damping Edgewise Oscillations In One Or More Blades Of A Wind Turbine, An Active Stall Controlled Wind Turbine And Use Hereof  
A method for damping edgewise oscillations in one or more blades of a wind turbine includes the steps of detecting if one or more of the blades oscillates edgewise during operation of the wind...
US20110142632 Piecewise Variable Displacement power transmission  
In one embodiment, a hydraulic circuit has an input shaft, at least one positive displacement hydraulic pump, a plurality of positive displacement hydraulic motors, and at least one fluid line...
US20100003134 Wind and wave power generation  
The present invention provides a wind and wave power generation system including a platform (12) and a wind turbine (16) rotatably mounted on a tower (32) and provided with an actuator (34) for...
US20080118354 Wind Turbine Comprising a Multiplied Redundancy Control System and Method of Controlling a Wind Turbine  
A wind turbine (1) comprising equipment under control is presented, which comprises at least one control system (14, 14A, 14B) for one or more of said main components, (5, 7, 9) of the wind...
US20090202347 Systems and methods for mitigating the effects of wind turbines on radar  
A control system for mitigating the effects of a wind turbine on a radar system is disclosed. The control system includes a sensor configured to detect an operating condition of the radar system;...
US20090230681 MODEL BASED WIND TURBINE DRIVE TRAIN VIBRATION DAMPER  
The invention concerns a method for reducing mechanical oscillation in a wind power plant which comprises a plurality of rotor blades, a wind turbine drive train and a generator, wherein the rotor...
US20140154075 POWER PRODUCTION OF WIND TURBINES  
Embodiments of the invention generally relate to wind turbine generators, and more specifically to improving power production in wind turbine generators. A rotor plane of the wind turbine may be...
US20100021297 Method For Condition Monitoring A Rotor Of A Wind Energy Plant  
A method for condition monitoring a rotor of a wind energy plant includes the steps of measuring activity signals of the blades in the rotor and establishing one or more differential values...
US20100075552 MARINE PROPULSION AND CONSTRUCTIONAL DETAILS THEREOF  
A propeller (1) comprising a hub, and a plurality of fins (3) extending radially outwards from the hub, wherein each fin is moveably connected to the hub such that, during rotation of the...
US20130136597 WIND TURBINE CONTROL SYSTEM  
A wind turbine control system is provided. The control system has a wind turbine controller arranged locally at the wind turbine and adapted to adjust operation parameters of the wind turbine, and...
US20120070285 INDEPENDENT, DISTRIBUTED PROTECTION AND SAFETY SYSTEM WITH FIBER OPTIC COMMUNICATION FOR WIND TURBINES  
A safety system and method for monitoring the safety of a windmill turbine is disclosed. A protection safety master (PSM) controller is coupled to one or more input/output modules via an optic...
US20100014972 SYSTEM FOR ROTATING A WIND TURBINE BLADE  
A system for driving a wind turbine blade (46) into a feathered position during an emergency stopping process of a wind turbine rotor. The system comprises a hydraulic actuator (3) functionally...
US20150139797 WIND TURBINE CONTROL  
The present invention relates to methods, apparatus and computer program products for controlling a wind turbine that comprises a nacelle and one or more turbine blades to reduce or prevent...

Matches 1 - 50 out of 158 1 2 3 4 >