54results about "Wind motor commissioning" patented technology

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 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.

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.

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.

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.

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.

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.

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.

A method of filling a ballast tank (30) located within an interior of a wind turbine blade (20), the method comprising the steps of: providing a wind turbine blade (20) having a ballast tank (30) within an interior (42) of the blade; determining the position of the ballast tank (30) in the blade (20); applying a visual position identifier (60) to the outer surface (55) of the blade at a position corresponding to the position of the ballast tank (20); forming, at the location of the location identifier (60), a hole (50) through the outer surface (55) of the blade and into the ballast tank (30); a ballast material (48) is introduced into the ballast tank (30) through the aperture (50).

In one aspect, a method for validating a wind power installation or a component thereof is disclosed. The wind power installation has an aerodynamic rotor with a plurality of rotor blades that sweep through a rotor area. For at least one of the rotor blades, an individual blade performance capability and / or an individual blade power is / are determined in each case from recorded operating data relating to the wind power installation. The individual blade performance capability describes a capability of a rotor blade to convert power from wind into a partial rotational power for rotating the rotor, and the individual blade power denotes an amount of power that is converted by the respective rotor blade from the wind into a partial rotational power for rotating the rotor. The sum of the individual blade powers of all rotor blades of the rotor is a total rotational power of the rotor.

The invention discloses an intelligent fan diagnosis method, system and equipment and a medium, and relates to the technical field of wind power equipment diagnos.The method comprises the steps that variable-rate collection is conducted on a multi-source sensor signal at a fan end, and original data are obtained; extracting and physically aligning multi-scale features based on the original data to obtain a physical feature vector; training an auto-encoder with physical constraints based on the physical feature vectors to obtain local model parameters; performing weighted aggregation and domain adaptation on local model parameters to obtain a global diagnosis model, and fusing an abnormal score, a classification probability and a group deviation degree to obtain fault probability distribution and an uncertainty index; and based on the fault probability distribution and the uncertainty index, reasoning through a sequential logic rule base to obtain a diagnosis conclusion. According to the method, high sensitivity, cross-domain strong generalization, high diagnosis confidence and explainability of early faults of the wind turbine generator can be realized.

A method for controlling a wind turbine (1) is disclosed. The wind turbine (1) comprises three or more wind turbine blades (4), and blade connecting wires (7), each blade connecting wire (7) extending between a connection point (8) on one wind turbine blade (4) and a connection point (8) on a neighbouring wind turbine blade (4). The wind turbine (1) further comprises pre-tension wires (9), each pre-tension wire (9) being connected to one of the blade connecting wires (7) and to a pre-tension adjustment mechanism (10). The method comprises measuring at least one parameter of the wind turbine (1), and deriving an estimate for a rotor imbalance of the wind turbine (1) from the at least one measured parameter. The pre-tension adjustment mechanism (10) is controlled based on the estimated rotor imbalance in order to counteract the rotor imbalance.

The invention discloses a fan transmission chain fault positioning method and system, and the method comprises the steps: constructing a double-flow graph neural network model which comprises a physical flow path and a latent flow path, the input of the model is each node feature constructed according to a multi-channel vibration signal, and the output of the model is a node enhanced representation, the physical flow and the latent flow are respectively used for extracting explicit structure correlation features and implicit correlation features between nodes; a physical consistency constraint is introduced in the training stage so as to inhibit unreasonable jump of the implicit association structure in space; in the model operation stage, a historical sample management mechanism based on the sample information amount is combined, and continuous adaptation of the model is achieved without forgetting existing knowledge when a new fault category occurs; and finally, quantifying the contribution degree of each sensor node based on the original discriminant response change, and generating a fault positioning result consistent with the transmission chain topology. According to the method, refined and explainable positioning of the fan transmission chain fault can be realized in a small sample and incremental learning scene.

The application discloses a traction device for pitch gear box gear train adjustment process of a wind turbine, which comprises a frame, left and right two supports arranged on the frame, a transmission shaft rotatably connected to the supports, a rocking handle connected to the transmission shaft, a transmission gear mounted on the transmission shaft, a vertical rack and a vertical guide rail fixedly arranged on the frame, the transmission gear is located between the left and right two supports, the transmission gear is engaged with the rack, the guide rail is located at the rear side of the rack, the rack is connected with the guide rail through a guide sliding block, the lower end of the rack is connected with a lifting belt through a lifting ring, and the lower end of the lifting belt is connected with a universal lifting ring. The horizontal traction and reverse locking are implemented after the installation of the pitch gear box, so that the pitch gear box is prevented from slipping and falling off.

The invention provides an operation control method, system, equipment and program product for a wind generating set, and the operation control method comprises the steps: obtaining a target operation parameter corresponding to a permanent magnet generator, obtaining a first control signal corresponding to the target operation parameter based on a preset starting algorithm, and controlling a wind power converter to work based on the first control signal, the permanent magnet generator is driven to start and operate to the target operation parameters; and acquiring a rotation angle predicted value of the permanent magnet generator, and based on the rotation angle predicted value and the target operation parameter, outputting a second control signal to control the wind power converter to work so as to drive the permanent magnet generator to operate according to the target operation parameter. According to the method, on the basis that no hardware equipment needs to be added, stable and accurate starting and stable operation of the permanent magnet generator can be achieved, special reverse dragging or turning equipment does not need to be used, workshop debugging, unit installation and overhaul work are facilitated, and the installation, debugging and maintenance work efficiency of the wind generating set is improved.

The invention relates to a system for the combined testing of a rotor blade (2) of a wind turbine and a rotor blade bearing (3) of a wind turbine, comprising: a test stand base (1) with a test stand bearing (4) arranged on the test stand base (1), wherein the test stand bearing (4) is configured to receive the rotor blade bearing (3) with the rotor blade (2) arranged thereon, so that a degree of rotational freedom is provided for the rotor blade bearing (3) by means of the test stand bearing (4); a pitch-lock mechanism (7, 7') for providing a fixed pitch of the rotor blade (2) relative to the test stand base (1); a first rotational actuator (5) for applying a rotational movement to the rotor blade bearing (3) for testing the rotor blade bearing (3); a blade actuator (9) for deflecting the rotor blade (2) for testing the rotor blade (2).The invention also relates to a method for the combined testing of a rotor blade (2) of a wind turbine and a rotor blade bearing (3) of a wind turbine.