Abstract:
A rotor (16) is provided, comprising a vertical rotation axis (12), and at least two rotor blades (18, 20) arranged on the rotation axis (12), wherein at least one rotor blade (18, 20) comprises a first portion (40) and a second portion (50), wherein the second portion (50) is moveably arranged on the first portion (40). A virtual elongation (30) of the first portion (40) is formed by a virtual tangent placed on the end (46) of the first portion (40) facing away from the rotation axis (12) and that the second portion (50) is arranged on the first portion (40) in such a manner that an angle β formed between the virtual elongation (30) of the first portion (40) and the second portion (50) has a variable value between about 0° and 90°. Due to the design of the rotor blades (18, 20), the rotor (16) has particularly high efficiency.
Abstract:
본 발명은 풍력발전기 모든 베어링과 드라이버에 적용된 이종의 윤활유를 동시 공급하는 장치 및 베어링의 윤활유 공급 및 회수장치에 관한 것으로서, 특히 피치 베어링과 요 베어링에 적용된 윤활유와 피치 드라이버 요 드라이버에 적용된 윤활유를 윤활유 공급기 1대에 결합시켜 설치 공간 및 경제적 비용을 대폭 줄일 수 있도록 하고, 피치 베어링 또는 요 베어링 및 메인 베어링에 적용된 윤활유를 공급하고 공급된 윤활유를 회수할 수 있도록 하기 위한 풍력발전기 모든 베어링과 드라이버에 적용된 이종의 윤활유를 동시 공급하는 장치 및 베어링의 윤활유 공급 및 회수장치에 관한 것이다. 이를 실현하기 위한 본 발명은 특징이 있다. 윤활유 공급 장치(100)에는 피치 베어링 또는 요 베어링 적용된 윤활유가 충진 되는 베어링펌프유닛(110); 피치 드라이버 또는 요 드라이버 적용된 윤활유가 충진 되는 드라이버펌프유닛(120); 모터(131)를 수용하고 상기 모터의 축에 축설된 캠(132)을 수용하는 구동부하우징(130); 상기 캠(132)과 비대칭으로 결합되어 구동되는 공급펌프유닛(140); 상기 베어링펌프유닛(110) 하부에는 상기 공급펌프유닛(140)에 의해 펌핑된 윤활유가 베어링펌프유닛(110)으로 충진하고, 베어링펌프유닛(110)에 충진된 윤활유는 피치 베어링 또는 요 베어링으로 공급할 수 있도록 하는 베어링공급라인(150); 상기 드라이버펌프유닛(120) 하부에는 상기 공급펌프유닛(140)에 의해 펌핑된 윤활유가 드라이버펌프유닛(120)으로 충진하고, 드라이버펌프유닛(120)에 충진 된 윤활유가 피치 드라이버 또는 요 드라이버로 공급할 수 있는 드라이버공급라인(160); 상기 구동부하우징(130) 상부에는 윤활유 공급 장치(100)를 제어하는 컨트롤러(170)로 구성된 것을 특징으로 한다.
Abstract:
A wind turbine blade comprising at least two wind turbine blade sections connected in a blade connection joint, where each blade section at their connection end comprises a number of corresponding dentations arranged to interconnect across the blade connection joint. One of the blade sections comprises a spar cap structure and a connecting part with a first end joined to the spar cap structure and an opposite second end positioned at the blade section connection end and comprising a number of the dentations. The connecting part further comprises a number of sheets which are interleaved with the fibre-reinforced layers of the spar cap structure in an overlapping zone thereby joining the spar cap structure and the connecting part. The invention further relates to a method for preparing a wind turbine blade section as mentioned above. The invention also relates to a method of preparing a sheet for a connecting part with a number of dentations at one end, which method involves cutting and rolling a number of unidirectional prepreg sheets to form fingers, placing in an open mould the fingers next to each other and partially apart such as to form the dentations, closing the mould, and fully or partially curing the sheet.
Abstract:
A method, controller, wind turbine, and computer program product are disclosed for collecting data from wind turbines in a wind farm. An example method generally includes receiving, from a client device, a subscription request identifying a plurality of data points to collect from a set of wind turbines. A wind farm server establishes a client interface with the client device. The wind farm server receives data points form the plurality of wind turbines and buffers the identified collected data points from the set of wind turbines in a data repository. Through the client interface, the wind farm server receives a request for data points collected from at least one wind turbine over a specified time period, and responsive to the request, transmits the requested data points to the client device. The wind farm server also may push collected data points from wind turbines to a data analysis system.
Abstract:
Turbomachine, comprenant deux arbres rotatifs (3, 4) et un groupe de lubrification comportant au moins une pompe (30) comportant un carter (44) à l'intérieur duquel est monté un rotor (42) qui est entraîné par l'un desdits arbres, le carter de la pompe étant entraîné en rotation par l'autre desdits arbres de façon à ce que l'actionnement de la pompe dépende de la différence de vitesses de rotation entre les arbres, caractérisée en ce que les arbres sont respectivement un arbre moteur (3) et un arbre de soufflante (4), l'arbre de soufflante étant entraîné par l'arbre moteur par l'intermédiaire d'un réducteur (10) qui est lubrifié par le groupe de lubrification, et en ce que le réducteur a une forme annulaire et est traversé axialement par la pompe (30).
Abstract:
Die Erfindung betrifft eine Windenergieanlage mit einem Turm und einer Gondel, wobei an der Gondel ein Rotor mit mindestens einem Rotorblatt angeordnet ist und der Rotor in Betrieb der Windenergieanlage eine Drehbewegung ausführt und die Drehbewegung über eine Welle einen Generator innerhalb der Gondel antreibt, wobei an dem Turm der Windenergieanlage eine Faserwicklung angeordnet ist, die eine vertikale Turmachse des Turms der Windenergieanlage umwickelt und die konfiguriert ist eine Schwingung des Turmes zu dämpfen.
Abstract:
A method of making an elongate wind turbine blade is described. The wind turbine blade extends longitudinally between a root end and a tip end in a spanwise direction, and the method comprises: (a) providing an elongate mould tool (20) extending longitudinally in a spanwise direction; (b) arranging an elongate spar structure (40) in the mould tool, the spar structure (40) extending longitudinally in the spanwise direction; (c) arranging core material (24) adjacent to the spar structure (40); (d) providing resin-permeable material (114) between the spar structure (40) and the core material (24); and (e) administering resin into the mould during a resin infusion process. The resin-permeable material (114) restricts the flow of resin between the spar structure (40) and the core material (24) in the spanwise direction and thereby substantially prevents lock-offs from forming during the infusion process.
Abstract:
The present invention provides a wind turbine comprising a tower, a nacelle, and a descent module configured to accommodate at least one person while descending down at least a portion of a height of the tower, wherein the descent module is arranged to be magnetically attracted to the tower to guide the descent module relative to the tower over at least a portion of the descent. The present invention also provides a descent module for a wind turbine, and a method of lowering at least one person down at least a portion of a height of a tower of a wind turbine.
Abstract:
Pitch control system (1) for at least one rotor blade (17) for a wind turbine comprising a nacelle (16), as well as a hub (15) both place on the top of a tower (18) and at least one rotor blade (17). The system comprises at least one electrical pitch drive system (3) each drive system (3) is connected to a rotor blade (17) and an electrical pitch motor (2). The electrical pitch drive system(s) (3) is/are adapted to communicate with units comprising the motor(s) (2) for pitching the rotor blade (17) it is attached to and in accordance with inputs registered from a first sensor and a second sensor (20). Each electrical pitch drive system (3) comprises a gyroscope (22) adapted to register an angle value of the longitudinal axis of the rotor blade (17) with respect to the gravity. A processor is adapted to calculate the position of the rotor blade (17) based on said values.
Abstract:
A method of producing a single assembled longitudinally extending fibre layer for use in a later resin infusion process for manufacturing a fibre-reinforced composite structure is described. The method includes the steps of: a) providing a first fibre mat comprising unidirectional reinforcement fibres oriented in a longitudinal direction of the first fibre mat between two ends, b) providing a second fibre mat comprising unidirectional reinforcement fibres oriented in a longitudinal direction of the second fibre mat between two ends, c) arranging the first fibre mat and the second fibre mat so that unidirectional fibres of one end of the first fibre mat adjoin one end of the second fibre mat in a single plane at a common boundary, and d) splicing unidirectional fibres of the first fibre mat at said one end of the first fibre mat to unidirectional fibres of the second fibre mat at said one end of the second fibre mat in order to form a splicing joint.