| Patent application number | Description | Published |
|---|
| 20090162202 | BRAKING AND POSITIONING SYSTEM FOR A WIND TURBINE ROTOR - A method of positioning a wind turbine rotor comprises defining a predetermined angular position in a main rotation plane of the rotor and controlling a rate of deceleration of the rotor, such as to stop the rotor at the predetermined angular position. | 06-25-2009 |
| 20090167023 | FORWARD LEANING TOWER TOP SECTION - A support structure for a baseframe of a nacelle or the nacelle of a wind turbine is described. The wind turbine has a tower with at least one lower tower section, wherein the at least one lower tower section defines a vertical axis of the tower, a yaw bearing, the nacelle and a hub. The supports structure includes a lower side; an upper side; wherein the support structure has a support structure axis being defined as extending through the center of the lower side and the center of the upper side, and wherein the support structure is adapted to be mounted to a wind turbine such that the support structure axis is inclined relative to the vertical axis of the tower. | 07-02-2009 |
| 20090169390 | ADAPTIVE ROTOR BLADE FOR A WIND TURBINE - A rotor blade for a wind turbine is provided, the rotor blade having a first module of a first type and a second module of a second type, each module having a distal end and a proximal end, wherein the distal end of the first module and the proximal end of the second module are adapted to be attached to each other to form at least a part of the rotor blade, wherein at least one of said first and second modules is selected from a set of at least two differently shaped modules of the same type. Further, a kit of parts for adapting a wind turbine to a site constraint is provided, the kit of parts comprising several modules for assembling a modular rotor blade, wherein the several modules comprise at least one root-type module and at least one tip-type module and at least one further module of the root-type or the tip-type, wherein the at least one further module has a different shape compared to the other module of the same type. Finally a method for adapting a rotor of a wind turbine to a site constraint is provided. | 07-02-2009 |
| 20090184519 | SPEED CONTROLLED PITCH SYSTEM - The present patent application concerns wind turbine having a rotor with a first rotor blade and a pitch control system with a first drive system for adjusting a pitch angle of the first rotor blade, wherein the drive system is adapted to transform rotational energy of the rotor blade rotating about its longitudinal axis into another form of energy such that a counter torque against the rotating direction is induced. Further, it concerns a method for controlling a pitch velocity of a rotor blade of a wind turbine, the wind turbine comprising at least one drive system for adjusting a pitch angle of said rotor blade, the drive system being adapted to operate in a active mode, wherein the drive system rotates the rotor blade, and in a passive mode, wherein the drive system exerts a counter force against the rotating direction, when the rotor blade being rotated by another force than the force of the drive system, wherein the pitch velocity is controlled by operating the drive system in said passive mode when the pitch of the rotor blade is changed from a first position to a second position. Finally, the present patent application concerns a controller for controlling a pitch angle of at least one rotor blade of a wind turbine, the controller being adapted to control a first drive system for adjusting the pitch angle of a first rotor blade, wherein the first drive system can be operated in an active mode in which the drive system rotates the rotor blade about its longitudinal axis, and in a passive mode in which a rotation of the rotor blade about its longitudinal drives the drive motor such that the drive system transforms the rotational energy in another form of energy. | 07-23-2009 |
| 20100007237 | BRUSHLESS SLIP RING FOR A WIND TURBINE AND METHOD OF ASSEMBLY - A brushless slip ring has a first conductive rotating member, and a second conductive non-rotating member that is positioned a predetermined distance away from the first conductive rotating member. A conductive semi-solid material electrically couples the first conductive rotating member to the second conductive non-rotating member. The semi-solid material is configured to transfer electric current from the rotating member to the non-rotating member. | 01-14-2010 |
| 20100032959 | WIND TURBINE SYSTEM - A wind turbine to convert wind energy into electricity by a positive displacement hydraulic pump is disclosed. The hydraulic pump is disposed adjacent a shaft coupled to a hub. In one embodiment, the rotation of the hub drives the hydraulic pump. In another embodiment, the hub rotates the shaft to drive the hydraulic pump. | 02-11-2010 |
| 20100040470 | WIND ENERGY SYSTEM WITH FLUID-WORKING MACHINE WITH NON-SYMMETRIC ACTUATION - The invention relates to a wind energy system with hydraulic energy transmission with non-symmetric actuation. The non-symmetric actuation is caused by valve control and mechanical means for controlling the actuation of the pistons. A cylinder unit is provided comprising a drive unit and an output unit associated with two hydraulic connections. The drive and the output unit comprise a minimum of two cylinders, in which pistons are reciprocating. Some of the cylinders can be switched off during low wind speeds. The cylinders communicate with a low pressure manifold and a high pressure manifold. These manifolds are part of the hydraulic connections. Use of the fluid-working machine as transmission in wind energy systems increases the overall economical efficiency. | 02-18-2010 |
| 20100090463 | COMBINED ENVIRONMENTAL MONITORING AND POWER SUPPLY DEVICE - A wind turbine includes a tower, a machine nacelle and a rotor having a plurality of rotor blades and a hub. Furthermore the wind turbine includes at least one wind speed sensor device having at least one environmental monitoring apparatus for the detection of at least one environmental condition including a transducer device for converting the detected environmental conditions into an electrical signal and a converter device for converting energy provided by the environment into electrical output energy. The transducer device and the converter device are formed as an associated unit. | 04-15-2010 |
| 20100092292 | APPARATUS AND METHOD FOR CONTINUOUS PITCHING OF A WIND TURBINE - A wind turbine includes a machine nacelle and a rotor having at least one rotor blade and a hub. An anemometer unit is adapted for measuring a first wind velocity at a first rotational position of the rotor and for measuring at least one second wind velocity at at least one second rotational position of the rotor. At least one pitch angle adjustment unit is provided for adjusting a first pitch angle and at least one second pitch angle of the at least one rotor blade as a function of the rotational position of the rotor, wherein the at least one pitch angle adjustment unit is adapted for changing the pitch angle between the first pitch angle and the at least one second pitch angle while the rotor of the wind turbine is rotating. | 04-15-2010 |
| 20100109334 | WIND TURBINE FLUID FILTERING SYSTEM - A wind turbine power generation system is disclosed that includes a backflushing filter system. The backflushing filter system may be include a backflushing filter in fluid communication with in any one of the hydraulic pumping system, a gearbox oil circuit, a mainbearing oil circuit, a brake oil circuit, and combinations thereof. The backflushing filter system further includes a containing filter for removing particulate contamination from the backflushing filter system. | 05-06-2010 |
| 20100135797 | APPARATUS AND METHOD FOR MANIPULATING A COMPONENT OF A WIND TURBINE - A wind turbine includes a tower member a yaw system, and a wind energy collection system. The wind energy collection system includes a central hub and a plurality of blade members. The wind turbine further includes a component manipulating system operatively coupled between at least one of the plurality of blade members and the tower member. The component manipulating system includes a blade member support structure including a first end pivotally connected relative to the tower member that extends to a second end operatively coupled to the one of the plurality of blade members, and a winching system operatively connected to the one of the plurality of blade members and the tower member. The winching system is selectively operated to shift the one of the plurality of blade members relative to the tower member in order to enable serving of the wind turbine. | 06-03-2010 |
| 20100329867 | DRIVETRAIN SYSTEM FOR A WIND TURBINE GENERATOR AND METHOD OF ASSEMBLING THE SAME - A drivetrain for a wind turbine includes a gearbox and a generator. The gear box includes a housing and an output shaft that is rotatably coupled within the housing, wherein the gearbox further includes at least one bearing positioned between the housing and the output shaft. The generator includes a stator coupled to the housing such that the stator is positioned radially outward from the housing, and a rotor coupled to the output shaft such that the rotor is positioned radially inward from the stator. | 12-30-2010 |
| 20110103953 | 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 includes coupling a manifold to the sidewall, wherein the manifold extends from the blade root towards the blade tip and has a root end and an opposing tip end defining a passage from the root end to the tip end. A plurality of apertures is defined through the sidewall. The apertures provide flow communication between the passage and ambient air. A debris collector is coupled to the tip end of the manifold and is configured to collect debris flowing through the air distribution system. | 05-05-2011 |
| 20110131898 | FLANGE CONNECTION - A flange connection is provided which includes a first flange having a first mounting hole and at least one second flange having a second mounting hole adapted to be aligned with the first mounting hole. A bolt including a shaft portion having a threaded portion, and a head portion formed at one end of the shaft portion is adapted to pass through the first and second mounting holes. A screw nut is adapted to be screwed onto the threaded portion and for connecting, when tightened, the first flange and the at least one second flange. At least one of the head portion and the screw nut includes a convex surface which is oriented towards the respective flange, and the respective flange includes, at the mounting hole, a flange recess which is oriented towards the convex surface. | 06-09-2011 |
| 20110133476 | ROTOR SUPPORT DEVICE AND METHOD FOR ACCESSING A DRIVE TRAIN OF A WIND TURBINE - A rotor support device is provided which is adapted for supporting a rotor of a wind turbine while accessing at least one component of said wind turbine. The rotor support device includes a hinge comprising a fixed portion and a tiltable portion. The fixed portion is adapted for being mounted at a nacelle structure of the wind turbine and the tiltable portion is adapted for holding the rotor of the wind turbine and for being tilted about a hinge axis. Furthermore an actuator device is provided which is adapted for pivoting the tiltable portion about the hinge axis between a closed position where a rotor axis coincides with an axis of the drive train, and an open position where the rotor is offset from the drive train. | 06-09-2011 |
| 20110135493 | WIND TURBINE, TOWER AND METHOD FOR FABRICATING THE SAME - A wind turbine, tower and method for making same are provided. The wind turbine includes a rotor having one or more blades and a rotor radius distance approximately equal to the distance measured from a centerline of the rotor to a tip of one of the blades. The tower has one or more tower sections, including a first tower section having a generally cylindrical or frusto-conical shape. The first tower section has at least one first diameter. A reduced diameter tower section is connected to the first tower section, and has a waist portion with at least one second diameter that is smaller than the first diameter. At least a portion of the reduced diameter tower section having the second diameter is located about one rotor radius distance from the centerline of the rotor, and the reduced diameter section provides increased static clearance to the tip of the blades. | 06-09-2011 |
| 20110142596 | METHOD FOR MONITORING A COMPONENT IN A HYDRAULIC CIRCUIT, MONITORING DEVICE AND FLUID TURBINE - The disclosure concerns a method for monitoring at least one component to be monitored in a hydraulic circuit filled with a working fluid, the hydraulic circuit comprises at least one pump for circulating the working fluid, wherein the method comprises:—changing an operational state of at least one first component in the hydraulic circuit such that a working point of the at least one component to be monitored changes to a predetermined working point;—performing at least one measurement for monitoring the at least one component to be monitored. Further, the disclosure concerns a monitoring device for monitoring at least one component to be monitored in a hydraulic circuit being filled with a working fluid. Further, the disclosure concerns a fluid turbine comprising at least one fluid rotor, wherein the fluid rotor is adapted to convert kinetic power of a fluid into a rotation, the fluid turbine further comprising a hydraulic circuit filled with a working fluid. | 06-16-2011 |
| 20110142633 | SYSTEMS AND METHODS FOR 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. The rotor blade includes a sidewall at least partially defining a cavity extending from a blade root towards a blade tip. The method includes positioning at least a portion of a manifold within the cavity and coupling the manifold to the sidewall. The manifold extends from the blade root towards the blade tip and has a root end and an opposing tip end. A passage is defined from the root end to the tip end. A flow control device is coupled to the manifold root end and configured to channel air through the manifold. A bypass flow assembly is coupled to the manifold and configured to channel air through the air distribution system with the flow control device in a non-operating configuration. | 06-16-2011 |
