Alerta

DOUBLE SET OF BLADES WIND POWERED TURBINE

Absstract of: US2025243842A1

A wind powered turbine is disclosed that comprises two concentric cylinders. The first cylinder is located within the perimeter of the second cylinder. Both the first cylinder and the second cylinder comprise a plurality of blades. The first cylinder and its blades move in response to wind activity. The second cylinder and its blades do not move when the first cylinder and its blades are moving. The curvature of the blades of the first cylinder and the curvature of the blades of the second cylinder are in different directions with respect to each other.

SERVICING A WIND TURBINE USING A COMPUTER IMPLEMENTED SERVICE INSTRUCTION GENERATOR APPLYING A TRAINED NATURAL LANGUAGE MODEL

Absstract of: WO2025157358A1

The present disclosure pertains to service of a wind turbine based on a determined service instruction. The service instruction and a resulting service action is determined using a computer implemented service instruction generator applying a trained natural language model. The service instruction generator accesses a repository of service instructions and a repository of fault entries. At a defined recurring time a current text corpus is prepared based on the accessed service instructions and fault entries. The natural language model is trained on the current text corpus. The service instruction and a resulting service action is determined querying the natural language model trained on the current text corpus.

WIND TURBINE VIBRATION CONTROL SYSTEM

Absstract of: WO2025157359A1

A pitch controlled wind turbine has a tower, a nacelle mounted on the tower, a hub mounted on the nacelle, and blades. The wind turbine includes blade connecting members, each extending between neighbouring blades, and pre-tension members, each connected to one of the blade connecting members and to the hub via a tensioning device, the tensioning device provides radial movement of the pre-tension member due to extension/retraction of the tensioning device, each pre-tension member provides pre-tension in ta respective blade connecting member. A cable vibration control system is coupled to one or more of the tensioning devices, and to one or more sensors for detecting a vibration of, or resultant noise from, one or more of the blades, blade connecting members and pre-tension members. The control system is configured to control the tensioning devices to extend or retract so as to control vibrations and noise generated by the wind turbine.

WIND-DRIVEN ENERGY APPARATUSES AND METHODS THEREOF

Absstract of: US2025243843A1

The present document relates to an airborne wind-driven energy-converting apparatus, as well as wind-driven energy systems including such an apparatus and methods of producing wind-driven energy.

VEHICLE AND ROTOR BLADE

Absstract of: US2025243846A1

This wind power generation device includes a plurality of rotary blades 15 around a rotation axis. Each rotary blade 15 includes a front blade surface 16 parallel to the rotation axis and curved so as to protrude frontward in a rotation direction, and a rear blade surface 17 located on the back side of the front blade surface 16, being parallel to the rotation axis, being curved so as to be concave frontward in the rotation direction, and having a smaller curve depth than the front blade surface 16. The front blade surface 16 includes a first curved surface 19 forming a part far from the rotation axis and formed frontward in the rotation direction from an outer end 21 of the rotary blade 15, and a second curved surface 20 forming a part close to the rotation axis Li and formed rearward in the rotation direction from a crest 18 of the front blade surface 16 so as to connect to an inner end 22, a surface length thereof in a plan view being smaller than that of the first curved surface 19. The first curved surface 19 has recesses 23 at positions closer to the outer end 21 than to the crest 18 of the front blade surface 16. Thus, a rotary blade that rotates by receiving a fluid and can improve rotation efficiency, is provided.

ANTI-FATIGUE LOAD BEARING STEEL FOR WIND TURBINE MAIN SHAFT, PREPARATION METHOD THEREFOR, AND USE THEREOF

Absstract of: WO2025156495A1

The present invention relates to the technical field of metallurgical steels, in particular to an anti-fatigue load bearing steel for a wind turbine main shaft, a preparation method therefor, and a use thereof. The present invention herein provides the following solution, comprising: S1. smelting: refining a raw material steel into molten iron, carrying out impurity removal and deoxidization, and adjusting the content of each component to obtain molten steel for casting; S2. continuous casting: carrying out electroplusing crystallization and solidification on the molten steel for casting to obtain a continuous casting billet; S3. rolling: carrying out rough rolling on the continuous casting billet and then carrying out finish rolling to obtain a finish-rolled billet; and S4. post-rolling treatment: first slowly cooling the finish-rolled billet and then air cooling same to obtain an anti-fatigue load bearing steel. In the present invention, by component and process control, a specific microstructure can be formed; the surface of a grain has a corrugated grain boundary; the corrugated grain boundary reduces the orientation difference between adjacent grains, lowers the grain boundary energy, and can effectively impede dislocation propagation and grain boundary sliding; and high-density dislocations formed within grains, interactions between dislocations, and the development of Cottrell atmosphere have a deformation strengthening effect on a material, thus achieving an excellent

ROTOR BLADE AND ROTOR HAVING THE SAME

Absstract of: WO2025156028A1

A rotor blade for a wind turbine includes a blade root, a blade tip, and a longitudinal length extending from the blade root to the blade tip. The rotor blade includes an inner portion having an inner portion length extending from a first inner portion end at the blade root to a second inner portion end, and an inner angle of attack decreasing along the inner portion length from the first inner portion end to the second inner portion end. The rotor blade includes an outer portion having an outer portion length extending from a first outer portion end proximate the second inner portion end to a second outer portion end at the blade tip, and an outer angle of attack constant along the outer portion length for a maximum lift-to- drag ratio of the outer portion at a design tip-speed-ratio and at a design wind velocity.

Initial start mechanism of wind turbine for Urban Air Mobility

Absstract of: KR20250115569A

원심풍력터빈의 정지관성 및 발전기의 코깅토크를 최소화하여 발전효율을 향상시키고, 부품들의 내구성을 확보할 수 있는 도심 항공 교통용 풍력터빈의 초기기동 메커니즘을 개시한다. 도심 항공 교통용 풍력터빈의 초기기동 메커니즘은 내부로 유입된 바람에 의해 회전력이 발생되는 원심풍력터빈, 원심풍력터빈의 회전력을 이용하여 전기 에너지를 생성하는 발전기, 외부에서 유입된 바람을 원심풍력터빈으로 유입하는 주 배관, 원심풍력터빈에 연결되고, 원심풍력터빈으로 유입되어 원심풍력터빈을 가동시킨 바람이 배출되는 배기구, 배기구에 연결되어 외부공간과 연통되고, 외부공간에서 유입된 바람을 배기구로 유도하여 배출하는 배기관, 주 배관과 배기관을 연결하고, 주 배관이 폐쇄되면 주 배관으로 유입된 바람을 배기관으로 유입시키는 바이패스관, 주 배관에 결합되고, 주 배관과 바이패스관을 선택적으로 개폐하는 바이패스 밸브, 주 배관으로 유입되는 바람의 속도를 감지하는 제1 속도감지센서 및 원심풍력터빈의 회전속도를 감지하는 제2 속도감지센서를 포함한다.

accelerated wind power generation

Absstract of: KR20250115939A

본 발명의 가속 풍력발전은; 차(210), 기차(220), 비행기(240), 배(250) 등 이동수단(200)의 진행을 따라, 바람에 프로펠라(110)가 돌며 발전모터, 터빈, 발전기 동체 등 발전장치(120)를 돌려, 풍력발전하는 것을 특징으로 한다.

부유식 해상 풍력 터빈용 계류 시스템 상태 모니터링

Absstract of: TW202430774A

A method of monitoring a mooring system (10) of a floating offshore installation, FOI, (100) that is moored by the mooring system (10) is provided. The method comprises obtaining parameters related to a position of the FOI, wherein the parameters include at least mooring system parameters that are indicative of a region (15) within which a position of the FOI is expected to lie. The method further includes obtaining position measurements of an actual position (11) of the FOI, and deriving, from the obtained parameters and from the position measurements of the FOI, a state of the mooring system (10) of the FOI.

折り畳み式風車

Absstract of: JP2025112194A

【課題】垂直軸風車における強風時の強度設計にかかる問題を解決して、破損倒壊などの事故を防ぎ、設計強度を過大に設定することによる風車の鈍重化を防ぎ、結果的にコストダウンを実現し、実用性の大幅な拡大を図る。【解決手段】スパン方向に長い回転翼を中間部に屈曲可能なヒンジ１０を設け、該ヒンジによって上部翼１１と下部翼９を風車回転軸１の円周方向に並行に向け得うるごとき構造を有する折り畳み式風車を提供する。【選択図】図１

風車用回転翼

Absstract of: JP2025112191A

【課題】垂直軸風車の回転特性を起動時から高速回転時まで広い範囲で向上させることの出来る回転翼を提供するものである。【解決手段】垂直軸風車の回転翼５の後縁７近傍に回転円周に沿った平板乃至は円周に沿って湾曲した板状のリアフィン１０を取り付けたものであり、回転翼５の後縁７と該リアフィン１０との隙間９をリアフィン１０の翼弦とほぼ同等である如くすることによって、流体抵抗を低減することを可能にするものである。【選択図】図２

MULTIFUNCTIONAL LOW-NOISE ROTOR OF KRYSAK

Absstract of: WO2025159729A1

A low-noise multifunctional rotor for centrifugal/axial fans, vertical wind turbines and hydromachines is disclosed. The rotor comprises at least two blades fixed around a central shaft (1) by fastening elements (6). Each blade incorporates a first helical plate formed from a convex-concave rotation surface (3) and a second helical plate formed from a concave -convex rotation surface (4). The rotation radii of surface points, measured in planes perpendicular to the rotor axis, are equal to the radii defined in the generating surfaces and increase progressively from the lower to the upper part of the rotor, establishing an ascending spiral flow path. Novelty resides in that one side of plate (3) is aligned at an acute angle towards the inner face of plate (4) and is spaced therefrom by a gap, which reduces turbulence, noise and vibration while improving flow efficiency.

MOORING SYSTEM

Absstract of: WO2025159447A1

The present invention comprises: a floating body floating on the sea surface; a mooring anchor seated on the seabed; a weight body positioned underwater between the floating body and the mooring anchor; and a plurality of mooring lines for mooring the floating body and having a closed curve shape. The mooring lines include: a first portion, in which a central lower part catches on a weight body mooring line catching part of the weight body; a second portion which passes through a weight body vertical passage in the weight body, and in which a central lower part catches on an anchor mooring line catching part of the mooring anchor; and a third portion which passes through a floating body vertical passage in the floating body and is connected to the first portion and the second portion, and in which a central upper portion catches on a floating body mooring line catching part provided on the floating body.

METHOD AND SYSTEM FOR PREVENTING WIND TURBINE BLADE-TOWER COLLISION

Absstract of: WO2025156806A1

A method and system for preventing wind turbine blade-tower collision. The method comprises: step 1: calculating a boundary pitch angle on the basis of the operating state of a wind turbine blade, and recording the boundary pitch angle as A0; step 2: calculating a required operating time for the blade to move from 0° to the boundary pitch angle A0, and determining a pitch position P0 on the basis of the operating time; step 3: determining a blade passing through the pitch position P0 on the basis of the pitch position P0; step 4: performing blade-tower collision preventing operating state determination on the blade passing through the pitch position P0 to obtain a determination result; and step 5: performing blade-tower collision preventing operation on the basis of the determination result.

YAW ASSEMBLY, DEVICE, AND METHOD FOR WIND TURBINE

Absstract of: WO2025156742A1

The present invention relates to a yaw assembly, device, and method for a wind turbine. A drive assembly is arranged between a main frame portion and a tower portion. The drive assembly is provided with one or at least two drive arms. The drive arms individually, simultaneously, or alternately and intermittently drive the main frame portion to rotate circumferentially on the tower portion. The drive assembly is intermittently drive-connected to insertion components. During the reset return stroke of the drive arms, force transmission between the main frame portion and the drive arms, or between the drive arms and the tower portion, is in a disengaged state.

MULTI-ELECTROLYTIC-CELL SERIES-PARALLEL HYDROGEN PRODUCTION CONTROL METHOD AND POWER GENERATION SYSTEM

Absstract of: WO2025156736A1

Provided in the present application are a multi-electrolytic-cell series-parallel hydrogen production control method and a power generation system. The method in the present application comprises: acquiring electrolysis power parameters of a plurality of electrolytic cells and a real-time generation power of a power generation system; and then, on the basis of the plurality of electrolysis power parameters and the real-time generation power, controlling the plurality of electrolytic cells to sequentially and repeatedly execute electrolysis start-stop operations, wherein each electrolysis start-stop operation comprises: comparing the magnitude of a target round startup output power with the magnitude of a rated minimum electrolysis power of a target electrolytic cell; on the basis of a corresponding magnitude determination, performing subsequent control operations; and then in the subsequent control operations, performing a corresponding control operation by means of determining whether the target round startup output power exceeds a danger warning threshold power. Thus, the hydrogen production efficiency and flexibility of the plurality of electrolytic cells in the hydrogen production power generation system are improved, the stability of the hydrogen production power generation system is improved, and the service life of the hydrogen production power generation system is prolonged.

Schwimmkörper und Offshore-Windenergieanlage mit Schwimmkörper

Absstract of: DE102024102639A1

Schwimmkörper (10) mit einer Mehrzahl von um einen Träger (20) konzentrisch angeordneten Kugeln (30), wobei wenigstens eine erste Teilmenge der Kugeln (30) in wenigstens einer ersten Ebene und wenigstens eine zweite Teilmenge der Kugeln (30) in wenigstens einer zur ersten Ebene parallel angeordneten zweiten Ebene angeordnet sind, dadurch gekennzeichnet, dass die Kugeln (30) der zweiten Ebene zu den Kugeln (30) der ersten Ebene derart versetzt angeordnet sind, dass die Kugeln (30) der zweiten Ebene in die Zwischenräume zwischen den Kugeln (30) der ersten Ebene eingreifen.

HEATING CIRCUIT FOR A HEATING SYSTEM OF A WIND TURBINE AND METHODS OF OPERATING SAME

Absstract of: US2025243848A1

A method of operating a heating system of a wind turbine connected to an electrical grid. The method includes receiving, via a heating circuit of the heating system, a voltage signal from the electrical grid. The method also includes processing the voltage signal using the heating circuit of the heating system. Processing the voltage signal using the heating circuit of the heating system includes superimposing a pulse width modulation (PWM) signal onto the voltage signal. Further, the method includes providing continuous temperature control to at least one heating element of the heating system via the PWM signal from the heating circuit. In addition, the method includes maintaining a temperature of the at least one heating element within a temperature range using the PWM signal during operation of the wind turbine to minimize temperature cycling of the at least one heating element.

SUPPORT STRUCTURE FOR A HYBRID WIND AND SOLAR ELECTRIC GENERATOR

Absstract of: WO2025158470A1

The field of the technique of the following invention is that of wind and photovoltaic alternative energies. Normally these two solutions involve photovoltaic panels and turbines which are functionally distinct from each other and that also occupy different spaces. This invention proposes a unique support structure that allows the simultaneous use of a solar tracker and one or more turbines. The result is a hybrid device with all the equipment mounted on board that is simple to install.

METHOD FOR OPTIMIZING THE LOAD ON A MAIN BEARING OF A WIND TURBINE

Absstract of: WO2025157346A1

The invention relates to a method for optimizing the load on a main bearing (1) of a wind turbine, wherein the main bearing (1) is designed as a hydrodynamic plain bearing, in which at least one of the bearing rings (2, 3) consists of a number of bearing segments (4) which adjoin one another over the circumference of the bearing ring (2, 3), wherein each bearing segment (4) can be positioned in a defined radial position (r), and wherein each bearing segment (4) is arranged on a surrounding component (5). In order to provide optimized operation of the bearing, the invention makes provision for the method to comprise the steps of: a) carrying out a numerical simulation for each of the bearing segments (4) of the bearing ring (2, 3), in which the load on the bearing segment (4) when the latter is arranged on or in the surrounding component (5) is calculated when the anticipated bearing load is applied and when the bearing segment (4) is in a predetermined initial radial position (ro) relative to the surrounding component (5); b) carrying out a numerical simulation for each of the bearing segments (4) of the bearing ring (2, 3), in which the load on the bearing segment (4) when the latter is arranged on or in the surrounding component (5) is calculated when the anticipated bearing load is applied and when the bearing segment (4) is in a predetermined changed radial position (r1) relative to the surrounding component (5); c) comparing the loads, determined according to steps a) an

LIGHTNING PROTECTION FOR WIND-TURBINE BLADES

Absstract of: WO2025158138A2

A wind turbine rotor blade comprising: a plurality of carbon-containing structural spars, whereby each structural spar extends spanwise along the blade between a root-wards position and a tip-wards position, each structural spar having an outward facing surface; an electrically conductive lightning-protection structure, the electrically conductive lightning-protection structure being electrically connected to, or electrically connectable to, a ground connection at a root end of the wind turbine rotor blade; whereby the lightning-protection structure comprises a branch for each structural spar, each branch extending along and covering the outward facing surface of the corresponding structural spar; each branch electrically connected to the respective structural spar at least at a tip-wards location and a root-wards location.

WIND TURBINE NACELLE

Absstract of: US2025243849A1

A wind turbine nacelle includes a rotor generator shaft, a rotor connected to the rotor generator shaft, an array of permanent magnets mounted on a circular outer surface of the rotor, a rotor hub directly connected to a forward end of the rotor generator shaft, a plurality of circumferentially spaced blades mounted on the rotor hub to face upwind, a stator ring surrounding the rotor, a plurality of encased coils mounted on an inner surface of the stator ring facing and radially spaced from the array of permanent magnets, a rear chassis attached to a rear surface of the stator ring and having a rear bearing housing, a rear bearing mounted in the rear bearing housing, a forward chassis attached to a front surface of the stator ring and having a front bearing housing, and a front bearing mounted in the front bearing housing.

METHOD FOR OPERATING A WIND TURBINE, CONTROL SYSTEM AND WIND TURBINE

Absstract of: WO2024061588A1

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 of providing first information which is representative for the tilt bending moment acting on the rotor. In another step, second information is provided which is representative for the thrust force acting on the rotor. In yet another step, third information is provided which is representative for a critical area of thrust forces and tilt bending moments. In another step, fourth information is determined depending on the first, the second and the third information. The fourth information is representative for whether the tilt bending moment and the thrust force lie within the critical area. I f 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 leave the critical area.

LIGHTNING-PROTECTION DEVICE IN A MODULAR BLADE

Nº publicación: EP4592524A1 30/07/2025

Applicant:

NABRAWIND TECH S L [ES]
Nabrawind Technologies, S.L

Absstract of: EP4592524A1

The present invention relates to a lightning-protection device in a modular blade that connects the outboard module (2), where the lightning strikes, to the inboard module (3) through which the lightning is conducted to the hub, and includes the lightning down conductor cable (9). Said device (7) is an elastic element with greater electrical conductivity than the adhesive (12) used to affix the inserts (11) in holes previously drilled inside the carbon fibre (6) and the make up the metal joint (4) of the modular blade (100). The device (7) is an elastomer with a preferably toroidal shape thar surrounds each and every one of the metal elements (4) that make up the joint of the blade and covers the gap formed between the carbon fibre (6) of the cap (5) and the aforementioned metal elements (4). The use of other shapes and other conductive materials that allow its geometry to be elastic is an option.