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435
results.
Updated on
11/08/2025 [07:08:00]
Results 375 to 400 of 435
Absstract of: EP4592520A1
The present application relates to a forward swept fan blade, a design method and manufacturing method therefor and a wind turbine. The forward-swept fan blade comprises: a blade body, extending in the length spanwise direction between a root and a tip of the blade; and a pitch axis, extending and vertically penetrating through the center of a root circle. With respect to the pitch axis, on the downstream side of the middle of the blade in the length spanwise direction, the blade deviates in a direction from a trailing edge to a leading edge. Using the forward-swept fan blade in the embodiment of the present application can enable the blade to generate forward torsional deformation during operation, so as to counteract the trend of the blade deviating from the optimal lift-to-drag ratio, thus achieving the purpose of minimum loss of the optimal power coefficient at different rotating speeds, and increasing the overall power generating capacity of wind turbines.
Absstract of: WO2024061641A1
The method is for operating a wind turbine (100) having a rotor (10) with at least two rotor blades (1, 2, 3), a tower (20) and a pitch setting system (13). The method comprises a step, in which first information is provided which is representative for bending moments of the at least two rotor blades and the assigned positions of the rotor blades. In another step, second information is provided which is representative for maximum allowed bending moments of rotor blades when they are in a critical sector close to the tower. In yet another step, third information is determined depending on the first and the second information which is representative for whether the bending moment of at least one rotor blade exceeds the respective maximum allowed bending moment when said rotor blade is in the critical sector. If this is the case, an output signal is generated which is configured to cause the pitch setting system to individually change the pitch angles of the rotor blades in order to reduce a deflection of the rotor blades towards the tower when they pass the tower.
Absstract of: CN119546850A
The invention relates to a plain bearing (9) comprising: an inner ring element (13); an outer ring element (14); at least one sliding bearing element (15), which is arranged between the inner ring element (13) and the outer ring element (14), by means of which the outer ring element (14) and the inner ring element (13) are supported so as to be rotatable relative to one another about an axis of rotation (16), the sliding bearing element (15) comprising a plurality of sliding bearing pads (22), each individual sliding bearing pad (22) having a curved bearing surface (27). The curved bearing surface (27) has a first radius (34) in a longitudinal section along the axis of rotation (16) and a second radius (35) in a cross section orthogonal to the axis of rotation (16). In particular, the second radius (35) is larger than the first radius (34).
Absstract of: WO2024061667A1
The method is for operating a wind turbine (100) having a rotor (10) with at least one rotor blade (1, 2, 3), a tower (20) and a pitch setting system (13). The method comprises a step in which first information is provided which is representative for a bending moment of the at least one rotor blade. In another step, second information is provided which is representative for the wind turbulence intensity at the rotor. In another step, third information is provided which is representative for a predetermined maximum allowed bending moment of the at least one rotor blade. The maximum allowed bending moment is dependent on the wind turbulence intensity at the rotor. In another step, fourth information is determined depending on the first, the second and the third information and is representative for whether the bending moment exceeds the maximum allowed bending moment at the wind turbulence intensity. If this is the case, an output signal is generated which is configured to cause the pitch setting system to change the pitch angle of the at least one rotor blade in order to reduce a deflection of the at least one rotor blade towards the tower when passing the tower.
Absstract of: EP4592521A1
This application relates to the technical field of wind turbines, and provides a wind turbine flutter suppression method and device, a control system and a wind turbine. The method includes: determining a nacelle-wind direction angle between a wind direction and a nacelle direction; and determining a pitching method for changing pitch angles according to the nacelle-wind direction angle. The pitching method includes a speed-controlled pitching scheme and a pitch-angle-sequence-controlled pitching scheme. The speed-controlled pitching scheme includes: regulating pitch angles of blades of the wind turbine according to a rotor speed of the wind turbine to keep the rotor speed within a preset speed range until flutter of the wind turbine is suppressed. The pitch-angle-sequence-controlled pitching scheme includes: performing a pitching operation on the pitch angles of the blades of the wind turbine according to preset pitching rules until the flutter of the wind turbine is suppressed. According to this application, with this method, the flutter suppression of the wind turbine can be realized without yawing by using a low-power standby power supply when the wind turbine is powered down.
Absstract of: EP4592522A1
Load carrying assembly (10), comprising a plurality of length sections of used wind mill blades (11) arranged in a preferably symmetrical structural pattern around a common longitudinal axis. The wind mill blade sections are attached to one another by a plurality of spaced apart connection elements (12, 13, 14). The structural pattern is typically symmetrical around a central axis.
Absstract of: EP4592523A1
This application relates to the technical field of wind turbines, and in particular to a standby power supply control device, a system, a wind turbine generator system and a method. The device includes: a nacelle vibration detection unit, configured to monitor vibrations of a nacelle of a wind turbine and send a first vibration signal obtained by monitoring to a standby power supply start/shutdown control unit; and the standby power supply start/shutdown control unit, configured to acquire the first vibration signal, determine a vibration state of blades on the wind turbine according to the first vibration signal and send a start command to a standby power supply when the vibration state is abnormal vibrations. The standby power supply start/shutdown control unit is further configured to acquire comprehensive vibration information, determine a vibration suppression result of the wind turbine according to the comprehensive vibration information and send a shutdown command to the standby power supply when the vibration suppression result is vibration suppression completed so as to drive the standby power supply to shut down. Thereby, this application solves the problems of short continuous high power supply to the wind turbine when facing the risk of blade flutter between hoisting and grid connection, and poor economic efficiency in the prior art.
Absstract of: AU2023346225A1
Shaftless vertical-axis wind turbine, comprising a hub (3) and a plurality of C-shaped blades (20), wherein each blade (20) comprises: a lower radial airfoil (221) arranged on the inner frame (120) at a lower radial portion (21) of the blade, a vertical airfoil (223) arranged on the inner frame (120) at a vertical portion (23) of the blade, and an upper radial airfoil (222) arranged on the inner frame (120) at an upper radial portion (22) of the blade, wherein at least one portion of the vertical airfoil (223) of each blade (20) is rotatable about a relevant axis of rotation, in a manner that is independent from the homologous portions of the vertical airfoil (223) of the other blades (20), to adjust the angle of attack or the curvature of the relevant vertical airfoil (223).
Absstract of: KR20250115126A
본 발명은, 지지대상물에 설치되는 베이스유닛, 바람에 의해 진동 가능하게 상기 베이스유닛에 설치되며, 상기 지지대상물에서 멀어지거나 가까워지는 방향으로 길이조절이 가능한 마스터 바디 및 상기 마스터 바디에 설치되어 상기 마스터 바디의 진동을 이용하여 전력을 발생시키는 발전유닛을 특징으로 한다. 본 발명에 따르면, 회전날개가 없어서 소음이 발생하지 않고, 발전할 수 있으며, 길이조절이 가능하기 때문에 설치위치의 변경 및 휴대성이 증가한다는 장점이 있는 날개가 없는 풍력발전기용 소형화 장치를 제공하는데 그 목적이 있다. ▶(국문) 본 과제(결과물)는 2023년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업의 결과입니다.(2021RIS-002) ▶(영문) This research was supported by "Regional Innovation Strategy (RIS)" through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (MOE) (2021RIS-002)
Absstract of: KR20250115127A
본 발명은, 지지대상물에 설치되며, 상기 지지대상물에서 멀어지는 방향으로 연장된 복수의 코일 지지대를 포함하는 고정유닛, 바람에 의해 진동 가능하게 상기 고정유닛에 설치되는 마스터 바디, 상기 마스터 바디에 설치되어 상기 마스터 바디의 진동을 이용하여 전력을 발생시키는 발전유닛 및 상기 마스터 바디와 함께 진동하도록 상기 발전유닛에 의해 상기 마스터 바디에 연결되며, 상기 코일 지지대 사이의 설치공간 내에 위치하게 설치되되, 내경의 길이가 상기 지지대상물에서 멀어지는 방향을 따라 변하는 영구자석을 구비하는 것을 특징으로 한다. 본 발명에 따르면 회전날개가 없어서 관리 및 유지비용이 저렴하면서 소음이 발생하지 않으며, 테이퍼 자석구조를 적용하여 풍력발전기의 발전효율이 향상하는데 그 목적이 있다. ▶(국문) 본 과제(결과물)는 2023년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업의 결과입니다.(2021RIS-002) ▶(영문) This research was supported by "Regional Innovation Strategy (RIS)" through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (MOE) (2021RIS-002)
Absstract of: CN119895142A
A support structure for a wind turbine (100), the support structure comprising:-a rotor bearing housing (201), where the rotor bearing housing (201) is configured to accommodate a rotor bearing (250) for rotatably supporting a rotor shaft (114); -a base (202) wherein the base (202) is configured to be rotatably mounted on a top (103) of a tower (102) of the wind turbine (100) at a first end (203) of the base (202) wherein the base (202) is configured to be mounted with the rotor bearing housing (201) on a second end (204) of the base (202) wherein the base (202) comprises a side wall (205) extending between the first end (203) and the second end (204), and the side wall (205) comprises a passage opening (206) for people to pass through.
Absstract of: CN119923521A
The invention relates to a drive train (14) for a wind turbine (10), having a transmission (18) for transmitting and converting a torque originating from a rotor shaft (16) of a rotor (12), the transmission (18) having an input transmission element, in particular a planet carrier (32), which is not supported at least on the rotor side and serves to introduce the torque into the transmission (18), and having a coupling unit (46) for coupling the input transmission element to the planet carrier (32). The coupling unit (46) is designed to be separated from the rotor shaft (16) and from the transmission (18) and is used for coupling the rotor shaft (16) to the input transmission component in a torque-transmitting manner, and the coupling unit (46) is provided with a bearing (48) which is used for supporting the unsupported input transmission component in the coupling unit (46). By adapting the bearings of the input transmission components in individually designed coupling units (46) to different demand profiles, alteration of the structure of the transmission (18) can be avoided, thereby enabling a cost-effective driveline (14) for different wind turbines.
Absstract of: CN119895179A
The invention relates to an industrial gear unit (100) having at least one shaft (101) and at least one shaft receptacle (103) for mounting the shaft in an axially fixed manner, the shaft being mounted in the shaft receptacle in an axially fixed manner in at least one axial portion (X1, X2) of the shaft, according to the invention, an intermediate element assembly (10) is arranged between the shaft receptacle (103) and the shaft (101) in such a way as to act in the axial section, said intermediate element assembly being mounted between the shaft and the shaft receptacle in an axially fixed and axially force-transmitting manner, the intermediate element assembly has a laser structured surface (10.1) in at least one surface portion (10.1 a, 10.1 b) on the shaft and/or on the shaft receptacle and is thus intended for at least substantially force-fitting and optionally also form-fitting support with respect to an axial displacement, wherein a conical pressure fit or similar connection which produces a form fit at a macro level can be additionally provided. The invention also relates to a corresponding intermediate element having a laser-structured surface for such an intermediate element assembly, to a method for the production thereof, and to the use thereof in planetary gear systems, in particular for wind turbines.
Absstract of: WO2024062257A1
A floating structure (1) having three buoyant bodies (3,5,7) for supporting a horizontal axis wind turbine (6) and wind turbine tower (27). The floating structure (1) is provided with a geostationary mooring system that permits it to weathervane in order to head the wind turbine (6) into the wind, and has a wind turbine tower mount (29) for supporting the wind turbine tower (27). A central buoyant body (3) is located partially above water during assembly and tow out from port and is ballasted so that it is underwater when moored offshore, such that the floating structure (1) becomes a semi¬ submersible. The three buoyant bodies (3,5,7) are ship-shaped in form which reduces loads in the mooring system, and are made from stiffened flat plates, which are easier for many yards and fabrication shops to make, compared to cylindrical hulls.
Absstract of: AU2023345000A1
The invention relates to an arrangement for use in any of installing or replacing a part, maintaining, and constructing a wind turbine, the arrangement comprising a longitudinal structure at least partially supported on a wind turbine tower, a guide track connected to the longitudinal structure and a dolly arranged to follow the guide track along the longitudinal structure.
Absstract of: MX2025003430A
A fluid flow turbine blade assembly for a turbine rotor includes a blade and a deflector extending spanwise along at least a portion of the blade. At least a portion of an upstream surface of the deflector, along at least a portion of a span of the deflector, has a concave shape in a chordwise direction such that at least a portion of a chord line between leading and trailing edges of the deflector is disposed outside a profile defined between the upstream surface and a downstream surface of the deflector. The deflector has a substantially uniform thickness or a chord-wise varying thickness between the upstream surface and the downstream surface. The deflector alters fluid flow over the blade so as to increase the blade's contribution to global torque generated by the assembly so that, with the deflector's torque contribution, the global torque of the assembly is greater than the global torque that would be generated by the blade alone without the benefit of the deflector.
Absstract of: CN119894765A
The invention relates to a floating support structure (2-1) for an offshore wind turbine, comprising: a lower connector (4) centered on the axis (X-X) of the mast (9) of the wind turbine, said lower connector (4) comprising at least three lower receiving grooves (10) uniformly distributed around the axis of the mast of the wind turbine; an upper connector (6) centered on the axis of the mast of the wind generator, the upper part of which comprises means (14) for receiving the mast of the wind generator and the lower part of which comprises at least three upper receiving grooves (12) uniformly distributed around the axis of the mast of the wind generator; and at least three identical tubular central posts (8), the lower end of which is fitted in one receiving groove of the lower connector and the opposite upper end of which is fitted in one receiving groove of the upper connector (so as to form a floating support tower adapted to the vertical extension of the mast of the wind turbine). The invention further relates to an assembling method of the structure.
Absstract of: EP4592525A1
The invention concerns a method for repairing a shear web (140) of a wind turbine rotor blade (110), wherein the shear web (140) comprises a defect (152) at the root end (142), the defect (152) running essentially along a longitudinal direction (120) of the wind turbine rotor blade (110). The method comprises the steps of:- providing a defect-bridging device (154) having a first cover plate (156) and a second cover plate (158), both the first cover plate (156) and the second cover plate (158) comprising an inner surface (164) and an outer surface (166), and- bonding the first cover plate (156) with its inner surface (164) onto a first surface region (168) of the shear web (140) and bonding the second cover plate (158) with its inner surface (164) onto a second surface region (170) of the shear web (140), such that both cover plates (156, 158) at least partly cover the defect (152).The invention also relates to a wind turbine rotor blade (110) .
Absstract of: EP4592519A1
The invention describes a shear web assembly (1) for a wind turbine rotor blade (4), comprising a composite shear web (10); at least one electrical cable section (12) bonded to the bag-side (10B) of the shear web (10), wherein the length (L<sub>12</sub>) of an electrical cable section (12) is at most 80% of the shear web length (L<sub>10</sub>); and a bonding layer (18) over each electrical cable section (12), wherein a bonding layer (18) comprises resin-infused reinforcing material and is formed concurrently with the composite shear web (10). The invention further describes a method of manufacturing such a shear web assembly (1), and a wind turbine rotor blade (4) comprising such a shear web assembly (1).
Absstract of: CN119907983A
The invention relates to a method for constructing a wind farm in a predetermined space, in which at least the following consecutive steps are carried out: a) forming (GR) individual grids in the predetermined space, b) determining, for each grid, the average annual energy production (AEP-mf) of a small wind farm consisting of wind turbines at the intersections of the cells, c) selecting (Ch) a number of grids capable of maximizing the energy production, and d) selecting (Ch) a number of grids capable of maximizing the energy production. D) for each grid c in step c), determining a first layout (Alg1) of a predefined number of wind turbines on the grid, e) modifying the positions (Alg2) of the wind turbines on the grid, f) determining a deterministic layout (DispF) of the wind turbines within a predetermined space, and constructing (Const) the wind farm.
Absstract of: CN223161942U
本实用新型公开了一种海上运输安装一体化自升式大型风电安装船，包括船体、上建、全回转推进器、侧向推进器、四条桩腿、主吊机以及辅吊机，所述主吊机以绕桩吊形式设置在船舶艉部右桩腿上，所述辅吊机以绕桩吊形式设置在船舶艉部左桩腿上，主吊机臂架釆用主、副臂架铰接桁架的形式，由主臂架、副臂架、立柱、前拉索和后拉索组成，主臂架顶部设主吊钩、副吊钩，副臂架顶部设小钩，本实用新型所述的风电安装船具有良好的起重性能，兼顾单桩施工和风机安装的特点，且易于保证船船平衡，甲板可用面积大，有效装载多等优势，还能依靠自身将单桩吊至船舶甲板上，辅吊机具有翻桩功能，提升了船舶的性能，为风机的安装提供了另一种思路。
Absstract of: CN120384849A
本发明提供了一种用于自然风下风电叶片颤振研究的缩比试验装置，属于风力机叶片颤振试验，该用于自然风下风电叶片颤振研究的缩比试验装置其特征在于，包括由风力机主体、控制系统以及监测装置构成的风力机缩比模型，风力机主体包括地基、塔架和叶片，控制系统用于控制风力机转速，由相似准则得到来流风速下对应的风力机缩比模型的转速实现对风力机的转速调节；监测装置用于监测自然风风速以及进行缩比叶片颤振形态的无接触式监测；控制系统包括变桨装置、偏航装置、伺服电机和控制器；监测装置包括风速仪、风向传感器、高速摄像机、六分量天平；本发明能够解决不能结合自然风状态下反应实际叶片颤振变化的问题。
Absstract of: CN120384842A
本发明公开了一种基于叶轮方位角与变桨电机电流的净空保护方法及系统，包括，在风机并网发电模式下，实时获取叶轮方位角信号；风机的三支叶片的变桨电气驱动系统在每个控制任务周期内，发送各自的变桨电机电流信号至主控PLC；由主控PLC根据风机的三支叶片在叶轮旋转平面内的排列次序，依次判断每支叶片在掠过塔筒，即叶轮方位角到达对应的预设角度时，其变桨电机电流是否超出预设的保护阈值范围；进而根据判断结果控制三支叶片的动作。本发明在叶片掠过塔筒的一定叶轮方位角范围内，若叶片变桨电机电流数值超过设定阈值时，能够立即触发净空保护控制动作，具有能够适应各种天气、响应速度快、准确度高、低成本等优点。
Absstract of: CN120384839A
本申请提供了一种基于多源数据的风机运行状态智能控制系统，涉及风力发电领域，其首先采集目标风机对象的运行参数数据的时序集和电场出口功率数据的时序集，然后构建场域‑设备两级信息融合机制，将电场出口功率的全局时序特征与单机运行参数的局部时序特征进行互信息引导的深度交互，从而利用电场出口功率时序特征来优化风机运行状态自信息的表达，确定风机运行状态检测结果，并确定预警级别和控制策略，进而生成风机运行控制信号，用以突破传统方法中风电场运行的全局上下文信息与局部设备状态解耦的技术瓶颈，有利于更为准确地进行风机运行状态检测和控制。
Nº publicación: CN120389511A 29/07/2025
Applicant:
甘肃龙源新能源有限公司龙源电力集团股份有限公司龙源（敦煌）新能源发展有限公司龙源（北京）新能源工程技术有限公司
Absstract of: CN120389511A
本申请提供一种基于数字孪生的风电场设备建模与运维管控方法、装置，通过高精度数字孪生模型构建：基于1:1三维建模技术还原风机实体，集成多源数据，包括设备传感器、视频监控、GIS地形数据，实现物理场与虚拟场的实时映射。智能决策支持模块：利用动态边界层模型预测风资源分布，结合虚拟惯量模拟技术优化并网控制策略，实现新能源波动场景下的电网暂态稳定性保障。全生命周期管理平台：支持从选址规划、运行监控到故障诊断的全流程管理，通过三维可视化大屏实现多业务数据融合展示与交互式运维策略验证。
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