||WO||WO/2014/140385 - DEVICE FOR GENERATING DISTURBANCES IN AN ELECTRICAL GRID||18.09.2014||
||PCT/ES2013/000068||WYNNERTECH (BEIJING) CO., LTD.||David Ugena González|
The invention relates to a device for generating network disturbances at a generator, comprising an inductive voltage divider (34) including a control unit (2), a bench of 6 inductors (28 to 33) connected to one another via a matrix of 18 isolators (5 to 22) and 5 coupled switches (23 to 27). The following can be coupled to the divider (34): a set of transformers (40, 43); a bank of capacitors and resistors (75); and an overvoltage module (OVRT, 79). The device can be used to perform tests for generator (3) power values of between 0 kW and 8.00 kW. The overvoltage test is performed by passing short-circuit current through coils (77) coupled to coils (78), generating 403 different configurations and producing 2,821 different overvoltages using combinations of the inductors (28 to 33), isolators (5 to 16) and (17 to 22) and switches (24 to 27).
||WO||WO/2014/139614 - METHOD FOR ESTIMATING WIND VELOCITY DISTRIBUTION PROFILES FOR WIND TURBINES||18.09.2014||
||PCT/EP2014/000145||ABB AG||WEICKERT, Thomas|
The invention relates to methods for estimating the wind
velocity distribution profile (36, 38, 40) during the operation of wind turbines
(10, 30), which have a generator and a plurality of rotor blades (14, 16, 18, 32, 34, 64, 68), which can be rotated (24) about a rotor hub (20) and which each have an adjusting drive for the individual pitch adjustment (64⇔ 68) of the rotor blade, wherein furthermore a control system is provided for controlling the adjusting drives. The method comprises the following steps: • detecting at least one instantaneous rotor-blade-independent wind
-dependent measured value, in particular the wind
velocity at the hub height, the rotational speed of the rotor, or the electrical power output by the generator, • detecting the instantaneous rotor angle of rotation (26), • detecting at least one instantaneous rotor-blade-specific wind
-dependent measured value, • determining the instantaneous wind
velocity distribution profile (36, 38, 40) by using the at least one rotor-blade-independent wind
-dependent measured value, the rotor-blade-specific wind
-dependent measured value, and the rotor angle of rotation (26), • providing the determined wind
velocity distribution profile (36, 38, 40) to the control system, • wherein said steps are repeated continuously so that a course of the examined values over time is produced.
||WO||WO/2014/140555 - PLANETARY GEAR BOX||18.09.2014||
||PCT/GB2014/050716||ORBITAL 2 LIMITED||ROSKO, Vilem|
A planetary gearbox (101) for a renewable energy turbine
is disclosed. The gearbox comprises a planetary gearbox (101) and at least one service cable (110) extending through said planetary gearbox. For example, the service cable (110) may be for the supply of power to and/or data from a rotor of a turbine
. The service cable (110) enters the gearbox (101) through a fixed planet stage (106c) of the gearbox and extends through a central shaft (130) to the stationary portion of a slip ring (120) assembly for providing, in use, a connection to a rotor of a turbine
. The central shaft (130) may for example extend only partially through the gearbox. The service cable (110) may, for example, enter the output side of the gearbox at a location which is radially offset from the central axis of the gearbox.
||WO||WO/2014/141214 - WIND TURBINE AND TOWER SYSTEM||18.09.2014||
||PCT/IB2014/059859||BRENDLE, Douglas||BRENDLE, Douglas|
The disclosed wind turbine
utilizes adjustable blades, forcing wind
into channels away from the rotational axis. These channels direct wind
to conversion surfaces a desirable distance from the rotational axis of the turbine
, producing more torque. The channels feature independent exhaust points and intake points, minimizing vortices within the blades that can reduce torque. The blades of the disclosed turbine
overlap, creating a larger constant percentage of air flow into the turbine
channel. A modular tower for mounting a wind turbine
is also disclosed. Finally, a wind
directional amplifier for use with a wind turbine
is disclosed. The wind
directional amplifier directs the flow of wind
to the optimum location for capture surfaces. When used with multiple wind turbines
, the wind
directional amplifier may be used to focus more or less air flow to one or more turbines
, thereby selectively controlling the output of all the turbines
||WO||WO/2014/139645 - METHOD AND SYSTEM FOR MONITORING AN INDIVIDUAL BLADE ADJUSTMENT OF A WIND TURBINE||18.09.2014||
||PCT/EP2014/000563||SENVION SE||WARFEN, Karsten|
The invention relates to a method and a system for monitoring an individual blade adjustment of a wind turbine
(10), which comprises a tower (11), a rotor (12), which is arranged on the tower (11) and has at least two individually blade-angle-adjustable rotor blades (14), and a blade adjustment system, wherein the blade adjustment system comprises a blade controller (17) and sensors for detecting individual actual blade angles (AA) of the at least two rotor blades (14), wherein an individual blade controller (18) is comprised, which receives a collective target blade angle (BB) from the blade controller (17) and controls the at least two rotor blades (14) with individual target blade angles (CC). According to the invention, at least one difference signal is formed by taking the difference between at least two blade angle collective signals (DD) that are different from each other and is monitored for a magnitude exceedance of at least one limit, wherein the at least one difference signal to be monitored and/or the blade angle collective signals (EE) on which the difference formation is based and/or the individual blade angle signals (GG) on which the blade angle collective signals (FF) are based are averaged over time.
||WO||WO/2014/139534 - WIND TURBINE BLADES WITH LAYERED, MULTI-COMPONENT SPARS, AND ASSOCIATED SYSTEMS AND METHODS||18.09.2014||
||PCT/DK2014/050053||VESTAS WIND SYSTEMS A/S||BAKER, Myles L.|
blades with layered, multi-component spars, and associated systems and methods are disclosed. A wind turbine
blade system in accordance with a particular embodiment includes a first blade segment having a first spar element that includes first planks having a first thickness and a first plank composition, and a second blade segment having a second spar element that includes second planks having a second thickness and a second plank composition different than the first plank composition. The second blade segment is joined to the first blade segment at a joint, and, in particular embodiments, an overall product of thickness and elastic modulus of the first planks is approximately equal to an overall product of thickness and elastic modulus for the second planks.
||WO||WO/2014/140305 - TOOL FOR MOUNTING ROTOR BLADES ON A ROTOR HUB, OFFSHORE CONSTRUCTION DEVICE AND METHOD OF ASSEMBLING A WIND GENERATOR||18.09.2014||
||PCT/EP2014/055153||AREVA WIND GMBH||WOLZENBURG, Holger|
A tool for mounting rotor blades on a rotor hub, an offshore construction device and a method of assembling a wind
generator is provided. The tool comprises a first part and a second part, wherein the first part is configured to be mounted on a base plane of a mounting device. The second part may be configured to receive a shaft flange of the rotor hub. The second part of the tool may be rotatable with respect to the first part.
||WO||WO/2014/141945 - POWER GENERATION DEVICE AND ONE-WAY CLUTCH STRUCTURE||18.09.2014||
||PCT/JP2014/055416||JTEKT CORPORATION||FUJIWARA, Hideki|
A one-way clutch structure, having a pair of clutch members disposed between an output shaft and a driving shaft so as to face each other in the axial direction, and an engagement part interposed between the clutch members. When the rotation speed of the output shaft exceeds the rotation speed of the driving shaft, the engagement part engages with the clutch part and connects the output shaft and the driving shaft in an integrally rotatable manner. When the rotation speed of the output shaft falls below the rotation speed of the driving shaft, the engagement with the engagement part is released and the connection between the output shaft and the driving shaft is cut.
||WO||WO/2014/139838 - WIND POWER PLANT HAVING FREQUENCY MEASUREMENT||18.09.2014||
||PCT/EP2014/054193||SENVION SE||BLUHM, Roman|
The invention relates to a method for controlling a wind turbine
, which is connected to an electric network (10) and detects a network frequency present in the network, wherein the power output is controlled by a controller (20) in dependence on the network frequency, and which switches off the power feed into the electric network in particular when a network frequency limit is exceeded, wherein a change in the network frequency over time is detected, a rate of change is determined, the rate of change is compared with a rate-of-change limit, and a modified frequency value is used for the control of the power output if the rate-of-change limit is exceeded.
||WO||WO/2014/139532 - METHOD AND APPARATUS FOR HANDLING A WIND TURBINE TOWER FOR QUAY SIDE ASSEMBLY AND STORAGE, AND TRANSPORT TO AN OFF-SHORE INSTALLATION SITE||18.09.2014||
||PCT/DK2014/050046||MHI VESTAS OFFSHORE WIND A/S||BOTWRIGHT, Adrian|
An apparatus for handling wind turbine
towers includes a structure coupled to a quay side in a manner that supports reversible tensile and compressive loading of the structure, and a tower stand configured to be coupled to a wind turbine
tower and further configured to be coupled to the structure, wherein when the tower stand, having a tower coupled thereto, is coupled to the structure, the tower is coupled to the quay side in a manner that supports reversible tensile and compressive loading of the tower. A method for handling wind turbine
towers is also disclosed and includes coupling a tower to the structure and moving the tower on the quay side, wherein the tower is coupled to the structure in a manner that supports reversible tensile and compressive loading of the tower.