73results about "Wind motor commissioning" patented technology

The invention provides an adjustable floating wind power foundation based on reinforcement learning and a modular construction method, and belongs to the technical field of offshore wind power. Comprising a fan, and the bottom of the fan is fixed to a tower drum; the bottom of the tower drum is fixedly connected with the floating base; the floating base comprises a first buoy, a second buoy and a third buoy which are arranged in a triangular shape; wherein the bottom of the tower drum is fixedly connected with the first buoy; the first buoy, the second buoy and the third buoy are fixedly connected through supporting steel pipes; the tower drum is fixedly connected with the second buoy and the third buoy through inclined supports; the buoy is further connected with an anchor chain, and the other end of the anchor chain is connected with the suction barrel and anchored to the seabed through the suction barrel. By adopting a coupling connection mode of the inclined support, the tower drum and the floating drum, the storm resistance of the whole structure is improved. A steel-concrete composite structure is adopted, the steel consumption is reduced, and the material cost is reduced. A modular construction method is adopted, the offshore construction time is greatly shortened, and the influence of weather and sea conditions on engineering is reduced.

The invention concerns a method of balancing rotor blade segments (132, 134) for a set of wind turbine rotor blades (110), the method comprising the steps: - providing a set of rotor blade segments (132, 134), the set of rotor blade segments (132, 134) comprising first rotor blade segments (132) and second rotor blade segments (134), - balancing the first rotor blade segments (132) comprising the sub-steps: -- determining a mass moment of each of the first rotor blade segments (132), -- determining a first rotor blade segment (132) having the highest mass moment amongst the first rotor blade segments (132), -- adding balancing ballast (138) to each of the remaining first rotor blade segments (132) such that each of the remaining first rotor blade segments (132) has a mass moment equal to the highest mass moment, - connecting each first rotor blade segment (132) to a second rotor blade segment (134) to form the set of wind turbine rotor blades (110).

Water-based platform for a wind turbine, said water-based platform comprising a foundation element which establishes a stable foundation for the wind turbine on the water and a wind turbine tower connection portion arranged on the foundation element. The water-based platform further comprises: an equipment support structure and equipment for maintaining / servicing the wind turbine. The equipment being supported on the foundation element by the equipment support structure and said equipment support structure being connected to the foundation element such that the entire weight of said equipment supported by the equipment support structure is transferred to the foundation element via said equipment support structure.

This invention discloses a method and system for locating faults in a wind turbine drivetrain. The method includes: constructing a dual-flow graph neural network model containing two paths: physical flow and latent flow. The input to the model is the features of each node constructed based on multi-channel vibration signals, and the output is an enhanced node representation. The physical flow and latent flow are used to extract explicit and implicit structural correlation features between nodes, respectively. During the training phase, physical consistency constraints are introduced to suppress unreasonable spatial jumps in the implicit correlation structure. During the model operation phase, a historical sample management mechanism based on sample information is combined to enable the model to continuously adapt to new fault categories without forgetting existing knowledge. Finally, the contribution of each sensor node is quantified based on the change in the original discriminant response to generate a fault location result consistent with the drivetrain topology. This invention can achieve refined and interpretable fault location in wind turbine drivetrain scenarios with small sample sizes and incremental learning.

The utility model discloses a centering adjusting device of a wind driven generator, which relates to the field of wind power generation equipment, and is characterized in that two first adjusting modules support the higher end of the generator, and a second adjusting module supports the lower end of the generator; the first adjusting module and the second adjusting module provide power through the X-axis driving assembly, and the X-axis guiding assembly provides guidance, so that the position of the generator is adjusted along the X axis. The Y-axis driving assembly of the second adjusting module provides power, and the Y-axis guiding assemblies of the first adjusting module and the second adjusting module provide guidance, so that the position of the generator is adjusted along the Y axis; the height of the generator is adjusted by the Z-axis driving assemblies of the first adjusting module and the second adjusting module, so that three-dimensional adjustment of the generator is realized; the integration level of the device is improved, the structure is simplified, and centering adjustment of the generator is completed with less manpower.

The present invention belongs to the technical field of wind turbines and discloses a wind turbine shaft alignment monitoring and adjustment device, comprising a power generation assembly, including a base, a speed increaser, a power generation mechanism, and a coupling. The speed increaser and the power generation mechanism are both fixedly mounted on the base, and the speed increaser is connected to the power generation mechanism via a coupling; the power generation mechanism is composed of a generator set, a support, a shock-absorbing bracket, and a support plate. The present invention applies four magnetic repulsive forces with a resultant force of zero to the output shaft of the generator set. When the input shaft of the generator set drives the active magnetic assembly to rotate, the state of zero resultant force is broken. The magnetic repulsive force is automatically changed by the different positions generated by the offset of the first permanent magnet block to the second permanent magnet block, thereby automatically pushing the input shaft of the generator set toward its original axis, so that the input shaft of the generator set can be synchronously adjusted and returned to the center when the input shaft of the generator set rotates, thereby reducing the hysteresis of the device adjustment.

The application discloses a kind of wind generating set intelligent joint commissioning test system and test method, test system is by fan processor, hub processor, communication system, data storage and console constitute, system control and detect fan each component sensor data, judge its performance reliability, finally generate result report, store into database, establish fan digital file;Test control system and unit data transmission protocol TCP / IP, control system passes through output operating system instruction, controls unit equipment action and collects sensor data and system data and carries out comparison judgment, finally generates unit test report.The application improves the test efficiency and quality of wind generating set before delivery, guarantees the high efficiency and accuracy of wind generating set delivery test, guarantees the effective authenticity of test record, is favorable to wind power generating set product digitization, is convenient for tracking and management to wind power generating set, so as to be favorable to realizing the production cycle digitization of wind power generating set.

The invention relates to a method for operating a wind power installation (100) for generating electrical power from wind, wherein the wind power installation (100) has an aerodynamic rotor (106) with rotor blades (108) which can be adjusted in their blade angle, and the rotor (106) is operated at an adjustable rotor rotational speed (nΑ, nB), characterized in that a turbulence class is determined at a location of the wind power installation (100) and the rotor rotational speed (nΑ, nB) is determined according to the determined turbulence class.

The invention relates to a grinding tool for grinding a leading edge of a wind turbine blade. It comprises two parallel shafts of which at least one is rotationally driven and a frame for holding the two shafts in a fixed mutual relationship. An annular abrasive belt is arranged around a tension device mounted to the frame and guides of which there is one on each of the two shafts. The abrasive belt runs in a plane perpendicular to the shafts and has a longer length than an imaginary curve formed by outer surfaces of the tension device and of the guides. The grinding tool further comprises two abrasive belt retainers movably mounted to the frame. They are shaped and arranged to move between a retaining position in which they retain the abrasive belt along at least parts of the abrasive belt which is in contact with the guides, and a release position in which they are out of contact with the abrasive belt.

A method for mitigating vibrations on a wind turbine generator (100). The method includes providing a drone (10) carrying an airflow disruption line (6) on a spool (14), securing a first portion (8) of the airflow disruption line (6) at a first attachment position on the wind turbine generator (100), deploying the airflow disruption line (6) around at least one part of the wind turbine generator (100) by flying the drone (10) around the at least one part from the first attachment position to a second attachment position on the wind turbine generator (100), and securing a second portion (9) of the airflow disruption line (6) to the second attachment position. The method enables efficient installation and removal of vibration mitigation devices on wind turbine generators (100) same with minimal manual intervention, reducing downtime and maintenance costs while effectively mitigating various types of vibrations in wind turbine structures.

A method for controlling a wind turbine is disclosed. The wind turbine comprises three or more wind turbine blades, and blade connecting wires, each blade connecting wire extending between a connection point on one wind turbine blade and a connection point on a neighbouring wind turbine blade. The wind turbine further comprises pre-tension wires, each pre-tension wire being connected to one of the blade connecting wires and to a pre-tension adjustment mechanism . The method comprises measuring at least one parameter of the wind turbine, and deriving an estimate for a rotor imbalance of the wind turbine from the at least one measured parameter. The pre-tension adjustment mechanism is controlled based on the estimated rotor imbalance in order to counteract the rotor imbalance.

The invention relates to a method for operating a wind turbine, the method comprising determining a correction model associated with the wind turbine, determining a corrected turbulence intensity parameter associated with the wind turbine based on the correction model, and operating the wind turbine based on the corrected turbulence intensity parameter.

The invention relates to a method for operating a wind turbine (100) for generating electrical power from wind, wherein the wind turbine (100) has an aerodynamic rotor (106) with rotor blades (108) whose blade angle is adjustable and the rotor (106) is operated at a rotor rated speed (nA, nB), which is in particular adjustable, wherein several vortex generators (118) are arranged on the rotor blades (108) between the rotor blade root (114) and the rotor blade tip (116), characterized in that the number and positioning of the vortex generators (118), in particular their radial extent (DA, DB) extending from the rotor blade root (114) towards the rotor blade tip (116), is determined depending on a site-specific air density.

A method of testing a power plant device (2) in a power plant (1), the power plant (1) comprising the power plant device (2) and one or more wind turbines (3) configured to electrically connect to the power plant device (2), the power plant (1) suitable for connecting to an electrical grid (G) external to the power plant (1), the method comprising: a) generating a voltage by the one or more wind turbines (3) in a condition where the power plant (1) is disconnected from the electrical grid (G); b) controlling the generated voltage by the one or more wind turbines (3) to emulate one or more grid conditions at the power plant device (2); and c) measuring the performance of the power plant device (2) under the one or more emulated grid conditions in a condition where the one or more wind turbines (3) are electrically connected to the power plant device (2) and the power plant (1) is disconnected from the electrical grid (G).

A method for manipulating shape and / or position of a wind turbine rotor blade shell member, wherein the wind turbine rotor blade shell member has a connection section and an insert having a connection surface, the insert being adapted to be screw-connected to another element of a wind turbine rotor, comprising the following steps: • providing a tensioning block having a contact surface, • mounting the tensioning block to the wind turbine rotor blade shell member with a threaded bolt which is screwed into the insert and pretensioned such that the contact surface of the tensioning block is pressed against the connection surface of the insert with a pretensioning force, • applying a lateral manipulating force to the tensioning block, • wherein the pretensioning force is selected such that between the connection surface of the insert and the contact surface of the tensioning block, an interference fit is obtained strong enough to transfer the lateral manipulating force to the wind turbine rotor blade shell member.

A damping device for a tower (102) for a wind turbine (100) comprises: - a first rope (210), the first rope (210) being configured to be connected to the tower (102), - a first frame (250), the first frame (250) being configured to be supported in a stationary manner on the ground (105) and to be coupled to the first rope (210) and to keep the first rope (210) under tension.

The present invention relates to a method for constructing a wind farm from a predefined number of wind turbines in a predetermined space. Said method comprises two discrete distributions (RD1, RD2), one for wind speed, one for wind direction, and a first discrete mesh (RD3) of the predetermined space. The method also comprises the occurrence probability (Prob) of each discrete wind speed value in each discrete wind direction. Said method uses a first arrangement of the wind turbines in the predetermined space; then the position of each (i) of the wind turbines is modified by determining the discrete positions (PDP_i) around the position to be modified. The selected position (Pos_i) is the one which maximises the annual energy produced by the wind farm. The invention also relates to a computer programme product using the method, as well as to a farm obtained from the method.

This invention discloses a testing and counterweight method for the dynamic balancing of wind turbine rotors. First, the initial operating state O is tested, and the vibration amplitude and phase angle are recorded. Next, a counterweight belt Wg is attached to one blade, and its trial weight state O+T is tested, recording the vibration amplitude and phase angle. Finally, the counterweight vector T and the corrected counterweight Wb are calculated through vector calculation. The corrected counterweight is then distributed to two adjacent blades, and the calculated lead sand is added to the blade counterweight box, completing the counterweighting process. This method allows for a simple and rapid measurement of blade imbalance and accurate calculation of the required counterweight weight in the blade counterweight box, with a simple procedure.

The present invention relates to a method for constructing a wind farm from a given number of wind turbines in a given space. The method comprises two discrete distributions (RD1, RD2), one for wind speed and one for wind direction, and a first discrete grid (RD3) in the given space. The method also includes a probability of occurrence (Prob) of each discrete wind speed value for each discrete wind direction. The method uses a first wind turbine arrangement in the given space, after which the positions of the wind turbines are changed one by one (i) by determining discrete positions (PDP_i) around the position to be changed. The selected positions (Pos_i) are those that maximize the annual energy generated by the wind farm. The present invention also relates to a computer program product implementing this method, and to a wind farm obtained with this method.

A method to operate a wind turbine is provided, the method including determining a correction model associated with the wind turbine, determining a corrected turbulence intensity parameter associated with the wind turbine based on the correction model, and operating the wind turbine based on the corrected turbulence intensity parameter.

The utility model provides an anti-loosening identification device of a bolt for installing a wind turbine generator, which judges whether the bolt is loosened or not by observing the position change of a convex structure, and is quick and reliable in anti-loosening identification. The bolt anti-loose identification device is used for anti-loose identification of bolts annularly distributed on a flange and comprises an annular sleeve, an annular tooth groove and a bolt anti-loose identification device, and annular tooth grooves are distributed in the inner annular wall of the annular sleeve; at least a semi-elliptical projection; at least one side of the annular sleeve is provided with a semi-elliptical protrusion, the short axis corresponding to the semi-elliptical protrusion is the outer diameter length of the annular sleeve, and the long axis length of the semi-elliptical protrusion is the center distance between two adjacent sets of bolts. The protruding distance of each set of semi-oval protrusions relative to the circle center of the annular sleeve is half of the distance between the centers of every two adjacent sets of bolts, and the equivalent diameter of the inner wall of the annular sleeve is the equivalent outer diameter of a nut tightly arranged on the bolts in a sleeving mode. The annular sleeve is arranged on the periphery of the equivalent outer diameter of the nut in a sleeving mode, and the corresponding tooth grooves of the annular tooth grooves are meshed with the corresponding angulation areas of the nut.

An apparatus for measuring a wind power generator air gap is disclosed. The apparatus is capable of measuring a measure (air gap) of a large structure with a diameter exceeding several meters which constitutes a wind power generator and verifying reliability of the air gap before assembly. The apparatus includes a support with a rotating driver therein, a first frame having an inner end fixed on the support, a second frame provided above the first frame at an interval, a spacer provided below the second frame, a turning bearing fixing the first frame and rotating the second frame, n (n is a natural number) dummy magnets provided on an outer end of the first frame, n (n is a natural number) dummy coils provided on an outer end of the second frame, and an air gap measuring means measuring an air gap between the dummy magnets and the dummy coils.

The present disclosure is related to methods for detecting an imbalance in a wind turbine. The methods comprise receiving one or more movement signals from one or more sensors on the wind turbine. Further, the methods include determining an energy level of the movement signals at a rotor rotational speed frequency, and determining a rotor imbalance at least partially based on the determined energy level. The methods may also include comparing the energy level of the movement signals at the rotor rotational speed frequency with energy levels at the first natural frequency of the tower. A control system suitable for carrying out such methods and a wind turbine comprising such a control system are also provided.

The invention is a method of constructing a wind farm from a predefined number of wind turbines in a predetermined space. This method comprises two discrete distributions (RD1, RD2), one for the wind speed and one for the wind direction, and a first discrete grid (RD3) of the predetermined space. The method also comprises the probability of occurrence (Prob) of each discrete wind speed value in each discrete wind direction. This method uses a first wind turbine arrangement in the predetermined space, then the position of the wind turbines is modified, one by one (i), by determining discrete positions (PDP_i) around the position to be modified. The position selected (Pos_i) is the one allowing the annual energy produced by the wind farm to be maximized.

The invention discloses a wind power and wave energy combined power generation adaptation method based on marine environment changes. Wind speed, wind direction, sea wave height and sea wave period sensors are deployed at selected positions in a sea area to collect environmental parameters, denoising is performed through a data processing and analysis module, and environmental state categories are divided. The power generation adaptation strategy module calculates the optimal power distribution proportion accordingly, and the regulation and control execution module adjusts parameters such as the blade angle, the rotating speed and the power output of the wind driven generator and the working mode of the wave energy power generation equipment according to the optimal power distribution proportion. The method can adapt to ocean environment changes in real time, improve the efficiency of the combined power generation system, enhance the power generation stability and prolong the service life of equipment, and is of great significance in promoting ocean energy development and utilization and relieving energy shortage.

A method (100) for validating a model of a wind turbine blade comprising: providing a wind turbine blade (6) having a root end and a major axis (Z) extending through the root end, supporting the wind turbine blade at the root end at a ground-based blade support (4), wherein the blade support (4) is configured to permit the wind turbine blade to be moved angularly about the major axis (Z), establishing a plurality of position targets on the wind turbine blade in a predetermined frame of reference, recording (108) the coordinates of the position targets at a first rotational position of the wind turbine blade, moving (110) the wind turbine blade angularly about its major axis through a plurality of further rotational positions of the wind turbine blade, recording (110) the coordinates of the position targets at each of the plurality of further rotational positions of the wind turbine blade, generating at least one wind turbine blade characteristic in respect of each rotational position of the blade based on the recorded coordinates of the position targets, thereby to determine a blade characteristic profile, generate a predicted blade characteristic based on a model of the wind turbine blade, comparing the determined blade characteristic profile with the predicted blade characteristic profile.

The present invention relates to the technical field of wind turbine blade production, and in particular to a modular blade assembly tooling installation and debugging method, device, equipment and medium, comprising: creating a track plane, fixing all tracks at the bottom of the tooling according to the track plane; installing a base plate of a blade-in-box supporting tooling on the track, and keeping the top plane of the base plate at the same horizontal plane, which is used as a first reference plane; collecting two first limit points of the blade-in-box large web and two second limit points of the blade-in-box end on the base plate, and connecting them to create a second reference plane and a third reference plane, and creating a coordinate system; importing a digital model of the blade tooling into measurement software, and creating a corresponding coordinate system in the software; when installing the remaining tooling, adjusting its actual position according to the coordinates of each limit point on the tooling digital model; after the tooling is installed, collecting the coordinates of all limit points, and performing deviation query and adjustment with the limit point coordinates on the tooling digital model, so as to ensure the installation and debugging accuracy of the tooling.

A method of disengaging a rotor-lock of a wind turbine, the rotor comprising one or more blades, which due to the gravitational pull, generates a rotor torque which is opposed by a rotor-lock counter-torque from the rotor-lock, the method comprising: a) determining a direction of the rotor torque with a sensor system; b) applying a rotor-drive counter-torque to the rotor with a rotor-drive system, wherein the rotor-drive counter-torque acts to oppose the determined rotor torque and causes the rotor-lock counter-torque to reduce; c) during or after the application of the rotor-drive counter-torque, disengaging the rotor-lock mechanism; wherein the step of determining a direction of the rotor torque comprises applying a torque restriction to the rotor-drive based on the determined direction of the rotor torque, the torque restriction preventing the application of torque to the rotor by the rotor-drive system in the same direction as the rotor torque.