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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 upper...
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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...
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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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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...
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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...
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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, it...
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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...
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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...
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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...
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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, axle...
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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...
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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...
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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, includes...
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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...
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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...
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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 position,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 to...
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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...
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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...
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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...
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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...
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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...
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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; a...
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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...
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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 between...
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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...
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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...
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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...
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US20110268570 |
SYSTEM AND METHOD FOR CONTROLLING WIND TURBINE BLADES
A wind turbine system is presented. The wind turbine system includes a blade comprising an airfoil and a sensing device disposed on a surface of the airfoil, wherein the sensing device generates...
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US20090116962 |
SENSORISED BLADE JOINT
Wind turbine blade subdivided transversely into two or more sections made up of a number of sensors, preferably load cells and ultrasound sensors, assembled into the mechanical joining elements...
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US20100054940 |
WIND TURBINE BLADE CLEANING METHOD
A method for cleaning the blades of a wind turbine using precipitation. The method includes determining the presence or absence of precipitation. In response to the determination of the presence of...
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US20100135798 |
WIND TURBINE NOISE CONTROLS
A method and system for providing noise control for a wind turbine system are disclosed. The method can include providing a wind turbine system comprising at least one blade operably mounted on the...
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US20110158805 |
PITCH CONTROL SYSTEM
The present invention relates to a pitch control system for operating the blade pitch of the rotor blades of a wind turbine generator. A method is disclosed wherein a command signal or pitch demand...
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US20100068056 |
BLADE PITCH CONTROL
A method of controlling blade pitch angle, comprising the steps of: comparing demanded and measured blade pitch angle and calculating any difference therebetween, in a primary electrical control...
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US20100143119 |
METHOD AND APPARATUS FOR CONTROLLING ACOUSTIC EMISSIONS OF A WIND TURBINE
A method and an apparatus for monitoring an acoustic emission of a wind turbine that includes a rotor blade. The apparatus includes at least one sensor operatively coupled to the wind turbine. The...
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US20090180882 |
SYSTEM AND METHOD OF DAMPING A 1P MOTION
A rotor system includes a multiple of rotor blade yokes mounted to a rotor hub. A lead/lag damper is mounted to each of the rotor blade yokes and to a damper hub. An actuator system is operable to...
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US20090185900 |
WIND-DRIVEN ELECTRICITY GENERATION DEVICE, METHOD OF CONTROLLING WIND-DRIVEN ELECTRICITY GENERATION DEVICE, AND COMPUTER PROGRAM
The present invention provides a wind power generation device capable of reducing collision of a flying object against a blade or bird strike. The wind power generation device includes a tower set...
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US20100061852 |
Wind turbine blade pitch control system
The present invention provides an improvement for a wind turbine (20) having at least one blade (21) mounted on a hub (22) for controlled rotation about a blade axis (yb-yb) to vary the pitch of...
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US20100014971 |
Wind Turbine With Pitch Control Arranged To Reduce Life Shortening Loads On Components Thereof
A wind turbine is presented where the operation lifetime of the main bearing is extended by relieving the main bearing by reducing the mean bending moment on the bearing by means of individual...
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US20090257873 |
Method and apparatus for prediction-based wind turbine control
A method an apparatus of automatically controlling a wind turbine re provided. of: A time-series of measurement values of the aerodynamic flow property of the wind turbine rotor blade is...
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US20110103950 |
SYSTEM AND METHOD FOR PROVIDING A CONTROLLED FLOW OF FLUID TO OR FROM A WIND TURBINE BLADE SURFACE
A wind turbine blade system having a blade rotatably attached to a rotor of a wind turbine. The system further includes a controller and one or more openings disposed along at least one surface of...
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