142results about "Wind motor commissioning" patented technology

The invention discloses a fan blade calibration test method, device and equipment and a storage medium. The method comprises the steps that a to-be-tested blade is divided into a blade root section, a blade body section and a blade tip section in the length direction of the to-be-tested blade; performing multi-mode dynamic scanning on the to-be-tested blade to obtain acoustics, vibration and deformation response data sets of the blade root section, the blade body section and the blade tip section under different rotating speed and wind speed conditions; performing time sequence analysis on the response data set by using a deep learning network to generate dynamic weight distribution diagrams and stress distribution diagrams of the blade root section, the blade body section and the blade tip section; the dynamic weight distribution diagram and the stress distribution diagram are compared with standard models in a pre-established blade database in a multi-dimensional mode, the most matched standard model is selected, and parameterization adjustment is conducted according to the actual difference; and based on the adjusted model, generating a physical calibration guide of the blade root section, the blade body section and the blade tip section, and carrying out segmented weight adjustment on the to-be-measured blade. The technical scheme of the invention ensures that the test result has high authenticity and accuracy.

An auxiliary power supply arrangement of a wind turbine is provided, including a standby power supply configured to cover the average power requirements of auxiliary devices of the wind turbine; and an energy storage unit, which energy storage unit is configured to cover transient power requirements of the auxiliary devices and / or to supplement the standby power supply in covering the transient power requirements of the auxiliary devices. Also provided is a wind turbine including such an auxiliary power supply arrangement adapted to supply power to auxiliary devices of the wind turbine during an off-grid state of the wind turbine; and a method of operating such a wind turbine.

A modular wind turbine blade includes a blade root, an intermediate portion and a blade tip. The intermediate portion includes a plurality of modular blades, two adjacent modular blades being provided at edge thereof with a first connecting portion and a second connecting portion that cooperate with each other, and wherein the plurality of modular blades includes a trailing edge shell, a leading edge shell and a main beam, respectively, the first connecting portion at the edge of the trailing edge shell and the leading edge shell being fixedly connected to the second connecting portion at the edge of the main beam. The wind turbine blade according to the present invention adopts segmented modular structural design, which effectively reduces the mold occupancy time of the blade, shortening the production cycle and improving the molding efficiency.

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.

To assist selection of installation sites for wind state observation equipment.SOLUTION: A wind state observation equipment arrangement assistance device 100 comprises: a geographic undulation coefficient calculation unit 111 for calculating a geographic undulation coefficient that indicates undulation of a topography at a candidate site for a wind power generation facility; and a prediction difficulty calculation unit 112 for calculating a prediction difficulty degree of that indicates a degree of difficulty in predicting a wind state at the candidate site on the basis of the geographic undulation coefficient. The geographic undulation coefficient is calculated on the basis of an altitude difference and plane distance between the candidate site and a high altitude site which lies within a prescribed distance from the candidate site and has a higher altitude than that of the candidate site. The larger the altitude difference is, the larger the geographic undulation coefficient is, and the larger the plane difference is, the larger the geographic undulation coefficient is. The wind state observation equipment placement assistance device 100 may further include an arrangement unit 113 that determines that arrangement of the wind state observation equipment at a candidate site where the prediction difficulty degree is large has high priority.SELECTED DRAWING: Figure 1

The invention provides a driving system, a turning system and a wind generating set, and the driving system comprises a converter cabinet which comprises a first converter and a second converter, and each of the first converter and the second converter comprises a machine-side converter and a grid-side converter which are connected through a DC bus; the grid-side circuit is connected between a grid-side converter of the first converter and a grid-connected point of the wind generating set; the barring circuit is used for connecting one ends, far away from each other, of the grid-side converter and the machine-side converter of the first converter; the first bus circuit and the second bus circuit are connected between the positive direct-current bus of the first converter and the positive direct-current bus of the second converter and between the negative direct-current bus of the first converter and the negative direct-current bus of the second converter respectively, the driving system has a turning mode and a grid-connected mode, in the turning mode, the grid-side circuit is disconnected, and in the grid-connected mode, the grid-side circuit is disconnected; and the turning circuit, the first bus circuit and the second bus circuit are conducted and are opposite in a grid-connected mode. According to the invention, the additional tool cost is obviously reduced, and the cost of the whole machine can be controlled.

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.

The invention discloses a signal detection method and device, a controller, a wind generating set and a storage medium, and the signal detection method comprises the steps: in the process of detecting a to-be-detected execution mechanism of the wind generating set, responding to a received input signal which indicates that the to-be-detected execution mechanism does not meet a preset detection passing condition; determining whether the input signal is normal according to the level change information of the input signal; under the condition that it is determined that the input signal is normal, adjusting a time parameter associated with detection to enable the input signal to meet a preset detection passing condition; and re-detecting the to-be-detected actuating mechanism according to the adjusted time parameter. By adopting the embodiment of the invention, automatic parameter identification and adjustment in an automatic detection process can be realized, the time for manual troubleshooting, parameter monitoring, adjustment and testing when the test item does not pass is shortened, and the test efficiency is improved.

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 present invention discloses a center of gravity correction device for the overall installation of a top-mounted wind turbine generator set, relates to the technical field of wind turbine generator sets, and includes a correction mechanism, wherein the auxiliary mechanism includes eight auxiliary blocks, four rectangular holes, four stabilizing seats and two high-pressure fans, the bottom of each of the auxiliary blocks is bonded and connected with a rubber scraper, the interior of each of the U-shaped blocks with holes is threadedly connected with a nozzle, and the air inlet end of each of the high-pressure fans is installed with a filter. The present invention, by arranging the auxiliary mechanism, can allow the telescopic end of the servo electric cylinder to move back to the interior of the servo electric cylinder for cleaning, that is, to prevent dust adhered to the surface of the telescopic end of the servo electric cylinder from entering the interior of the servo electric cylinder, thereby reducing the heat dissipation obstruction of the servo electric cylinder and improving the sealing performance of the servo electric cylinder, thereby improving the use effect of the center of gravity correction device and also improving the service life of the center of gravity correction device.

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 invention discloses an offshore wind power floating type foundation, a wind power assembly and a preparation method, and belongs to the field of offshore wind power. The offshore wind power floating type foundation comprises a first stand column, a second stand column and a third stand column which are arranged at intervals in a surrounding mode; the heaving disc is connected with one end of the first stand column; the buoy is connected between one end of the second upright post and one end of the third upright post; the deck pipe is connected between the other end of the first stand column and the other end of the second stand column; wherein the heaving disc and the buoy are the same in structure, each of the heaving disc and the buoy comprises a double-layer pipe and concrete filled in the double-layer pipe, the double-layer pipe of the heaving disc is connected with one end of the first stand column, and the double-layer pipe of the buoy is connected between one end of the second stand column and one end of the third stand column. The floating device has the technical effects that the structure is simple, and the floating stability is good.

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 present invention relates to the technical field of fan impellers, and in particular to a method for determining the center of a large fan impeller and an impeller safety system, comprising preparing a transparent plate; positioning and fixing the transparent plate; tracing an impeller contour on the outer wall of the transparent plate; checking and correcting the traced impeller contour; marking key points of the impeller on the outer wall of the transparent plate; determining the center of the impeller and the equally divided points by calculation; verifying the calculation results and drilling marks on the outer wall of the impeller; the present invention has the following beneficial effects: improving the positioning accuracy of the impeller center, reducing the imbalance of the impeller, and significantly reducing the vibration level of the adjusted impeller under various wind speeds, thereby ensuring the long-term stable operation of the fan, and reducing the vibration means reducing the wear of mechanical parts, improving the service life and safety of the equipment, and reducing the maintenance frequency and extending the life of the equipment, which can bring significant economic benefits to the power plant.

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.

To provide a damping system for counteracting oscillations in a construction, and particularly for counteracting oscillations in a wind turbine tower.SOLUTION: The present disclosure relates to a damping system for counteracting oscillations in a construction. The damping system comprises a pendulum device and a container which contains a viscous medium. The pendulum device comprises a mass which comprises a porous structure. The porous structure is configured to allow the viscous medium to pass through it. The porous structure is at least partially submerged in the viscous medium.SELECTED DRAWING: Figure 3

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.

The present invention discloses a calibration test method, device, equipment and storage medium for a wind turbine blade, the method comprising dividing the blade to be tested into a root section, a body section and a tip section along its length direction; performing multi-modal dynamic scanning on the blade to be tested, obtaining acoustic, vibration and deformation response data sets of the root section, body section and tip section under different rotation speeds and wind speeds; using a deep learning network to perform time series analysis on the response data sets, generating dynamic weight distribution diagrams and stress distribution diagrams of the root section, body section and tip section; performing multi-dimensional comparison of the dynamic weight distribution diagram and stress distribution diagram with a standard model in a pre-established blade database, selecting the most matching standard model, and performing parameterized adjustment according to actual differences; based on the adjusted model, generating a physical calibration guide for the root section, body section and tip section, and performing segmented weight adjustment on the blade to be tested. The technical solution of the present invention ensures that the test results have a high degree of authenticity and accuracy.

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 gyroscope assembly, a wind turbine blade, an impeller, and a wind power generator set. The wind turbine blade comprises a blade body (10), a web (11), and a gyroscope assembly, the blade body (10) has an inner cavity; the web (11) is fixedly disposed in the inner cavity; the gyroscope assembly is arranged on the web (11), the gyroscope assembly comprises at least one gyroscope, and the gyroscope assembly is configured to adjust the stability of the wind turbine blade by means of the rotation of the gyroscope.

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.

To assist selection of installation sites for wind state observation equipment.SOLUTION: A wind state observation equipment arrangement assistance device 100 includes a relational expression calculation unit 112 for calculating: a relational expression between an inter-prediction target site distance and wind state prediction accuracy, on the basis of observation sites where wind state observation equipment is installed and also on observation results of the wind state observation equipment, wherein the prediction target site is a site where a wind state thereof is predicted, and wherein the wind state prediction accuracy is a wind prediction accuracy at the prediction target site; or a relational expression between an inter-prediction target site distance and generated electric power amount prediction accuracy, on the basis of the observation sites where the wind state observation equipment is installed and also on observation results of the wind state observation equipment, wherein the prediction target site is a site where a generated electric power amount generated by wind power generation facility is predicted, and wherein the generated electric power amount prediction accuracy is prediction accuracy of the generated electric power amount at the prediction target site . The wind state observation equipment arrangement assistance device 100 also includes a permissible distance calculation unit 113 for calculating a permissible distance 122 between the predication target site and the observation site as of when predicting the wind state or the generated electric power amount on the basis of the relational expression and a requested accuracy 121 designated in prediction of the wind state or the generated electric power amount.SELECTED DRAWING: Figure 1

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.

To provide a heavy object movement device capable of removing or inserting a member without any damage, and a heavy object elevation adjustment method.SOLUTION: The present invention relates to a heavy object movement device J which is used in a wind power generator F comprising a main shaft 9 to which a wind turbine rotary vane 5 and a rotor head 4 are fixed, a speed increaser 8 that increases a rotational speed of the main shaft 9, and a nacelle base frame 7 that supports the main shaft 9 and the speed increaser 8, and which is used for attaching and detaching the speed increaser 8. The heavy object movement device comprises a main shaft pressing jig 13 having: a support part that supports the main shaft on the nacelle base frame; and first adjustment parts b1a to b1e that adjust a position of the support part 13s in both right-left and up-down directions so as to center the main shaft 9 relative to the speed increaser 8.SELECTED DRAWING: Figure 16

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 self-aligning support for mounting blades of a wind generating set relates to the technical field of mounting devices of wind generating sets and comprises a base, a lifting component arranged below the base, motors mounted on the left side and the right side of the upper surface of the base, output shafts of the motors connected with a speed reducer, and a transmission component arranged on one side of the speed reducer. The rotating assembly comprises a transmission shaft, transmission wheels and a transmission seat, the transmission seat is fixedly installed on the base, the transmission shaft is rotationally installed on the rotating seat, the two transmission wheels are fixedly installed on the transmission shaft, and one end of the transmission shaft penetrates through the transmission seat to be fixedly connected with the speed reducer. The blade roots of the blades are placed between the two rotating assemblies, the positions of the blades are adjusted through the two rotating wheels, labor intensity is relieved, and operation is more convenient.