2049 results about "Wind driven" patented technology

The invention discloses a wind driven generator state remote monitoring system based on the Internet of Things, and relates to the technical field of wind power generation equipment monitoring, and the system comprises a sensing module, a transmission module, a remote processing module and a user terminal module. The sensing module is used for accurately collecting various physical parameters such as vibration, temperature, pressure and rotating speed during operation of the wind driven generator by using various sensors, so that the operation condition of equipment is comprehensively mastered, and a data basis is provided for subsequent analysis and processing; according to the method, intelligent prediction of the future operation state of the wind driven generator is realized through deep learning and time sequence analysis, the fault type and time possibly occurring to the equipment can be predicted based on historical data and real-time data, powerful support is provided for operation and maintenance decision making, an operation and maintenance team can prepare in advance, and the operation and maintenance efficiency is improved. And targeted maintenance measures are taken, so that the maintenance cost is reduced, and the operation efficiency and the safety of the equipment are improved.

The invention discloses a wind driven generator oil leakage fault early warning method, which comprises the following steps: arranging vibration, temperature and oil sensors at a monitoring part, collecting multi-dimensional data for comprehensive analysis, analyzing a vibration signal by using a frequency spectrum to judge a mechanical fault, and combining a temperature trend and an oil parameter abnormal condition to realize early warning of an oil leakage fault of a wind driven generator. And carrying out classified early warning on the oil leakage fault by adopting a support vector machine algorithm. Furthermore, a Bayesian network algorithm is used to carry out accurate reasoning on the oil leakage position. According to the invention, the early warning result and the oil leakage position are uploaded to the monitoring center, and the processing suggestion is generated, so that intelligent and precise early warning of the oil leakage fault of the wind driven generator is realized. According to the multi-sensor fusion method, the accuracy and timeliness of oil leakage fault diagnosis are remarkably improved, the equipment loss and the maintenance cost are effectively reduced, and the method has important significance for guaranteeing safe and stable operation of the wind driven generator.

The invention discloses a semi-submersible wave energy-wind energy integrated power generation platform and a damping regulation and control method of a damping regulation and control system of the semi-submersible wave energy-wind energy integrated power generation platform. The platform comprises a semi-submersible wind driven generator platform, a wind driven generator set, a wave energy power generation device, an energy storage system, a sea area detection system and the damping regulation and control system. The wave energy power generation devices are divided into two groups on the inner side and the outer side of the platform, each wave energy power generation device comprises a platform inner side wave energy power generation device and a platform outer side wave energy power generation device, and each wave energy power generation device comprises a swing arm floater, a universal hinge, a connecting arm and a damping adjusting module. The semi-submersible wind power generation device and the wave power generation device are combined, and offshore renewable resources are comprehensively utilized; the six-buoy design is adopted, buoyancy is dispersed, stability and safety are improved, and meanwhile space is provided for a wave power generation device; the floaters are symmetrically arranged in a hexagonal shape and carry a damping regulation and control system, and the whole structure is more easily stabilized by adjusting the damping of the floaters in all directions.

The invention provides a wind driven generator blade icing monitoring and deicing control system and method, and the system comprises a noise collection unit, a temperature collection unit, an actual calculation unit, a deicing scheme generation unit, and a deicing scheme selection unit. The operation parameters of the wind generating set are monitored and analyzed by combining with the operation parameters of the wind generating set, including wind speed, air temperature, humidity, blade rotating speed, power generation power and the like, and meanwhile, real-time monitoring, acquisition, processing and storage are carried out through a monitoring system and a sensor. Operation parameters and environment data of the wind generating set are monitored, collected, processed and stored, monitoring, alarming and analyzing of the icing condition of blades are achieved, the optimal deicing strategy and time arrangement are determined, the deicing effect is improved to the maximum extent, the energy consumption of the set is reduced, the power generation efficiency and economical efficiency of the set are improved, and the economic benefit is increased. The purposes of reliable, efficient and economical operation and maintenance of the wind generating set are achieved.

The invention relates to a wind power off-grid hydrogen production system and a control method thereof. The system comprises a wind driven generator, a black start power supply, an energy storage converter, a machine side converter, a grid side converter, a direct current bus capacitor, a first transformer, a second transformer, a third transformer, an AC-DC converter, a DC-DC converter, an electrolytic bath, a first switch, a second switch, a third switch and a fourth switch. The system comprises a black start mode, a normal operation mode and an emergency operation mode. In the black-start mode, the system is started from a closed state to an operating state through a black-start power supply; in the normal operation mode, the system power balance is maintained by adjusting the electrolysis power; in the emergency operation mode, the system power balance is maintained by adjusting the output power of the wind driven generator; according to the system, the flexible adjusting capacity of the load of the electrolytic cell can be fully explored, an energy storage device except a black-start power supply does not need to be additionally arranged, and wind power off-grid hydrogen production without energy storage can be achieved.

The invention provides an active-disturbance-rejection full-wind-speed power smoothing method based on kinetic energy of a fan rotor, and belongs to the technical field of wind power control. The technical problem that the output power of a traditional wind turbine generator is unstable due to random fluctuation of the wind speed is solved. According to the technical scheme, the method comprises the following steps that S1, rotor kinetic energy is calculated based on a wind turbine kinetic model, and the effect of the rotor kinetic energy in power fluctuation stabilization is analyzed; s2, designing a first-order linear active disturbance rejection controller for rotating speed loop control; s3, designing a second-order linear active disturbance rejection controller for variable pitch control; and S4, dynamically generating an active power reference value by combining the kinetic energy of the rotor and an active disturbance rejection control technology, and controlling by coordinating a rotating speed ring and a variable pitch. The method has the beneficial effects that power fluctuation can be remarkably reduced under wind speed fluctuation and complex working conditions, the smoothness of power output is improved, meanwhile, the anti-interference capability and the dynamic stability of the system are enhanced, and efficient and stable operation of the wind driven generator system is ensured.

The invention discloses a structural dynamic response obtaining method for a fixed offshore wind turbine. The method comprises the following steps: establishing an initial finite element model according to related model data of a fixed offshore wind turbine to be tested, correcting the initial finite element model in combination with obtained actually measured modal parameters, and solving a vibration mode function based on the corrected finite element model; solving kinetic energy and potential energy of the to-be-tested wind driven generator structure; and according to the obtained structural kinetic energy and potential energy, a mass matrix, a stiffness matrix and a damping matrix are constructed based on an Euler-Lagrange equation and a basic kinetic equation, so that a dimensionality-reduced structural kinetic model of the offshore wind turbine is established, an inherent frequency value is obtained through solving, and the dynamic response is obtained. The method effectively overcomes the defects that a model is established depending on finite element software to solve the dynamic response in the prior art, and has the advantages that the modeling process is simple, the solving time is short, multi-field coupling load application can be met, and the control technology is easy to implement.

The invention relates to the technical field of wind driven generators, in particular to a wind turbine blade fatigue life evaluation method based on data driving, which comprises the following steps: acquiring blade original data of a wind driven generator; performing feature extraction on the blade original data of the wind driven generator based on the blade fatigue prediction model to obtain a blade fatigue prediction result of the wind driven generator, and solving a stress state accumulated damage value in the blade original data of the wind driven generator; and calculating the final fatigue of the blade of the wind driven generator by combining a blade fatigue prediction result, a stress state accumulated damage value and an environment correction factor of the wind driven generator and taking error minimization of the blade fatigue prediction result and the stress state accumulated damage value as an optimization target. And completing the service life evaluation of the wind driven generator blade based on the final fatigue of the wind driven generator blade. According to the method, accurate matching of fatigue prediction and actually measured damage values can be realized, and a reliable decision basis is provided for maintenance of wind power equipment.

The invention relates to the technical field of state identification of high-end equipment, and discloses a health state prediction method for high-end equipment, which comprises the following steps: S1, collecting operation parameters and state parameters of a wind driven generator; s2, preprocessing operation parameters and state parameters of the wind driven generator; s3, constructing a reference sample set for the wind driven generator based on the preprocessed state information; s4, judging the state grade of the wind driven generator based on the reference sample set and the state parameters; and S5, providing a maintenance suggestion for the wind driven generator according to the state grade. According to the method, the accuracy and efficiency of state recognition and prediction of the wind driven generator are remarkably improved, and powerful technical support is provided for safe and stable operation of the wind driven generator.

The invention discloses a wind power blade unmanned aerial vehicle inspection method and device, and belongs to the technical field of wind driven generators, and the wind power blade unmanned aerial vehicle inspection method comprises the steps: carrying out the unmanned aerial vehicle inspection of the front surface of a wind power blade to form first inspection information, and carrying out the unmanned aerial vehicle inspection of the back surface of the wind power blade to form second inspection information, the first inspection information comprises a first track point data set and a blade front image set, and the second inspection information comprises a second track point data set and a blade back image set; according to the first inspection information and the second inspection information, in combination with a wind power blade defect judgment condition, obtaining a wind power blade unmanned aerial vehicle inspection result; according to the wind power blade unmanned aerial vehicle inspection result, whether an unmanned aerial vehicle re-inspection mode is started is judged, if yes, the unmanned aerial vehicle re-inspection mode is started, and the wind power blade unmanned aerial vehicle inspection result is updated; and if not, the re-inspection mode is not started. The method can reduce the influence on the wind power plant operation and power generation efficiency, and improves the accuracy of the wind power blade unmanned aerial vehicle inspection result.

The utility model relates to the field of wind driven generator spindles, in particular to a wind driven generator spindle with a vibration monitoring mechanism, which comprises a wind driven generator spindle body. The monitoring assembly is installed on the outer side of the wind driven generator main shaft body and used for vibration monitoring. According to the wind driven generator main shaft with the vibration monitoring mechanism, through the arrangement of the wind driven generator main shaft body and the monitoring assembly, the wind driven generator main shaft body can be monitored in real time in the rotating process, and compared with traditional manual regular detection, the wind driven generator main shaft is more convenient; the main shaft body of the wind driven generator is in contact with the rolling wheel in the movable seat in the rotating process, and when the main shaft body of the wind driven generator vibrates, the rolling wheel in the movable seat is extruded, so that the vibration sensor behind the movable seat senses the vibration pressure for monitoring; and meanwhile, the rear telescopic rod is telescopically buffered in the first lantern ring and the second lantern ring through the spring, so that vibration detection of the vibration sensor is facilitated, and damage caused by direct contact of the vibration sensor is also avoided.

The invention relates to the technical field of wind fields, and discloses a fan decoupling control method for coordinating active power tracking and fatigue load optimization so as to achieve the maximum power control requirement, meet a wind field dispatching instruction, achieve power tracking and restrain fatigue loads. According to the method, on the basis of a model prediction control framework, through decoupling control over the rotating speed and the pitch angle of a wind driven generator rotor, multi-target optimization of wind field reference power tracking and fatigue load suppression of components such as fan blades, a gearbox and a low-speed shaft is achieved.

The invention relates to a duct type wind driven generator, an adjustable duct structure and a duct adjusting method. According to the adjustable duct structure, the sensor and the control unit are arranged, the outlet sectional area of the duct unit can be automatically adjusted according to the change of the wind speed, so that the optimal wind energy conversion efficiency and the stability of the aerostat are kept, and continuous and automatic adjustment of the outlet sectional area of the duct unit is achieved. The adjustable ducted structure can be applied to a wind power generation process, so that the adjustable ducted structure can be configured as a ducted wind power generator to convert airflow kinetic energy into electric energy. The problem that an existing aerostat duct structure is unstable in wind energy utilization efficiency under different wind speed conditions is solved, remarkable technical progress is achieved, and the aerostat duct structure is suitable for the field of wind energy collection and conversion.

The invention relates to the field of wind power generation control, and particularly discloses a cooperative control analysis system and method of a distributed wind power generation system. The artificial intelligence technology based on the deep learning field is used for calculating wind intensity values of a plurality of preset time points in a preset time period of the wind power plant, wind frequency values of the plurality of preset time points in the preset time period and wind frequency values of the plurality of preset time points in the preset time period. And performing feature extraction and coding on the wind speed values at the plurality of preset time points in the preset time period and the wind direction values at the plurality of preset time points in the preset time period to obtain a classification result of the type of the wind driven generator which is suitable for running. Therefore, wind energy can be effectively utilized by intelligently selecting the type of the wind driven generator which runs properly, and the stability and reliability of power generation of the wind power plant are improved.

The invention discloses a wind power cluster regulation and control method, system and device based on distributed calculation and a medium, and belongs to the technical field of wind power cluster regulation and control, and the method comprises the steps: obtaining the historical wind speed and wind direction data of each wind driven generator in a wind power cluster; calculating a wind condition correlation coefficient between any two wind driven generators; constructing a graph model of a wind power cluster; based on the clustering number, clustering wind power generators in the wind power cluster to obtain a plurality of wind power groups; on the basis of a wind power set, an optimization objective function is constructed in combination with resource constraint conditions of the distributed computing nodes, and a distribution strategy of the distributed computing nodes is determined through an optimization algorithm; and operation regulation and control of the wind power cluster are realized. According to the method, the wind regime correlation coefficient is introduced to construct the graph model, the wind regime correlation degree between the wind driven generators can be accurately reflected, and the physical reasonability of clustering division is improved. The clustering number is determined through graph feature similarity matching, and the problem that parameter setting depends on experience in a traditional clustering method is avoided.

The invention belongs to the field of wind power generation, and particularly relates to a separated self-adaptive wind driven generator which comprises a base, a resistance rotating shaft and a lift rotating shaft are sequentially sleeved with a fixed shaft, an upper bevel gear and a lower bevel gear which are meshed with each other are arranged at the top end of the lift rotating shaft, and a sliding block is arranged on the outer side of the lower bevel gear. A protection device is arranged on the lifting force rotating shaft, a plurality of speed reduction blocks are arranged on the protection plate in a coupling mode, and the other ends of the speed reduction blocks are connected with the protection sleeve through speed reduction springs; a sliding groove is formed in the resistance rotating shaft, the sliding block moves in the sliding groove, and a limiting groove is formed in the sliding groove; the bottom of the lower bevel gear is connected with the supporting ring through a limiting spring, and a speed reduction groove is formed in the inner wall of the resistance rotating shaft and corresponds to the speed reduction block in position. According to the wind driven generator, the lifting force type fan blades and the resistance type fan blades can be automatically separated or combined according to the rotating speed condition, the hysteresis quality of the resistance type fan blades during high-speed operation is avoided, and the situation that the rotating speed of the fan blades is too high, and equipment damage is caused can be prevented.

The invention relates to a fan tower drum, a vibration reduction method of the fan tower drum and a wind driven generator, the fan tower drum comprises a tower drum body and a plurality of vibration reduction assemblies arranged in the tower drum body, one ends of the multiple vibration reduction assemblies are connected with one another, the other ends of the multiple vibration reduction assemblies are circumferentially spaced and are connected to the drum wall of the tower drum body, and each vibration reduction assembly comprises a pipeline, a plurality of damping assemblies and a plurality of damping assemblies, the interior is hollow; the mass ball is movably arranged in the pipeline; and the two elastic parts are oppositely arranged, and the two elastic parts are arranged at the two ends of the pipeline correspondingly, so that when the tower drum body vibrates, the mass ball can reciprocate between the two elastic parts. When the fan tower drum vibrates, the mass ball can move in the pipeline, the mass ball can reciprocate between the two elastic parts through compression and resilience force of the elastic parts, vibration borne by the fan tower drum can be counteracted through multiple buffering motions of the elastic parts, and the stability and safety of the fan tower drum can be improved; and the structural damage and the maintenance cost caused by vibration are reduced.

When a sliding main bearing of a wind driven generator is under a heavy-load working condition, a lubricating oil film in a starting stage is not enough to form a complete fluid lubricating film, namely, a friction surface forms a boundary lubrication state, and friction in the stage seriously affects the service life of the bearing. In this way, a macroscopic model and a microscopic model are coupled, and a multi-scale model is verified through experiments. The macroscopic model is established based on an actual structure of a wind power main shaft sliding bearing, and is equivalent to a three-layer structure of a rigid bearing base, an elastic surface supporting layer and a main shaft; a three-layer microcosmic molecular model representing'main shaft-lubricating oil-elastic supporting layer 'is established by the microcosmic model facing the boundary lubrication state of a friction pair. Wherein the thickness of the supporting layer is changed by the macroscopic model, the components of the supporting layer material are changed by the microscopic model, the friction coefficient of the tribological interface under different supporting layer thicknesses and material components is analyzed through the macro-micro cross-scale analysis model, and the optimal thickness and the optimal material component proportion suitable for the service condition of the wind power main shaft sliding bearing are obtained.

The invention discloses a control method and device of a wind driven generator, a terminal and a storage medium, particularly relates to the technical field of operation control of the wind driven generator, and is used for solving the problem that a supporting structure bears violent asymmetric loads due to dynamic response differences of wind and wave load directions in a marine environment in an existing control method. Wind direction and wave direction data are synchronously obtained in real time, the wind direction change rate is calculated, supporting structure vibration signals are analyzed to recognize wave excitation dominant frequency components, and when it is detected that wave excitation energy suddenly changes and the wind direction change rate exceeds the limit, the wind wave direction difference is analyzed; meanwhile, a wave spectrum energy concentration frequency band is determined by analyzing the tower top movement track, the load asymmetry risk level is evaluated by combining the direction difference and the wave energy concentration frequency band, finally, the yaw speed and the variable pitch speed are adjusted in a self-adaptive mode according to the risk level, and accurate recognition and early warning of the wind wave load direction mismatching working condition are achieved. And the operation reliability of the wind driven generator in extreme weather is improved.

The invention discloses a wind power generation device and a wind power generation control method.The wind power generation device comprises a supporting column, a sensor and a wind power generation mechanism, the wind power generation mechanism comprises a generator and a fan blade set, the wind power generation device further comprises a speed reduction mechanism, the speed reduction mechanism is electrically connected with a control system, and the sensor is electrically connected with the control system; when the sensor detects that the external wind speed reaches the first preset value, the control system controls the speed reduction mechanism to blow air to the fan blade set, speed reduction is conducted through blowing, a braking speed reduction structure does not need to be additionally installed between the blades and the generator, and therefore mechanical abrasion and maintenance cost are reduced; a complicated mechanical braking speed reduction structure is not arranged, so that the design of the wind driven generator is simpler, the weight is lighter, and the installation and the maintenance are more convenient; and mechanical parts are reduced, so that the reliability of the whole system is improved, potential fault points are reduced, and the service life of the wind driven generator is prolonged.

The invention relates to the technical field of wind driven generators, and discloses a vertical axis wind driven generator with energy-saving and efficiency-increasing functions, which comprises a base, a support rod arranged on the base and a generator arranged on the support rod, a rotating table is fixed on a main shaft of the generator, and a plurality of groups of support frames are connected on the rotating table in an equal-angle annular array manner; a group of vertical blades are fixed on each group of support frames; a power-assisted starting mechanism is arranged on the rotating table, a rotating rod is rotationally connected to the power-assisted starting mechanism, a circular truncated cone is arranged at the end of the rotating rod, multiple sets of supporting plates are arranged at the two ends of the circular truncated cone, and spiral blades are arranged between the supporting plates in each set. According to the vertical-axis wind driven generator with the energy-saving and efficiency-increasing functions, when the wind speed is low, due to the fact that the spiral blades are small in mass and have better wind resistance and rotate before the vertical blades, the starting mechanism transmits rotating force of the spiral blades to the generator main shaft, and the wind speed threshold value of the vertical blades driving the generator main shaft to rotate is reduced; the power generation efficiency is improved.

The invention discloses an air-water cooler for a wind driven generator, which belongs to a cooling device in the field of electrical technology and comprises a heat exchanger mounted outside a cabin of a wind turbine generator and a water jacket mounted on the outer side of the generator, the water jacket is connected with the heat exchanger through a circulating pipe to form a circulating loop, and a propeller is rotatably mounted in the circulating pipe. The propeller is in transmission connection with a rotating shaft of the generator; the rotating shaft is driven to drive the propeller to rotate so as to realize closed-loop circulation of cooling liquid in the circulating pipe; according to the air-water cooler provided by the invention, the propeller arranged in the circulating pipe is in transmission connection with the rotating shaft of the generator, and circulation of the cooling liquid can be realized by driving the propeller to rotate through the rotating shaft without depending on a circulating pump, so that in the rotating process of rotating blades of a wind turbine generator, the cooling liquid is cooled; and the cooling liquid is always in a circulating state and continuously dissipates heat of the generator.

The invention relates to the technical field of wind driven generators, particularly provides a flutter value determination method, system and equipment for wind driven generator blades and a medium, and aims to solve the problem that the influence of fluid flow on blade structure movement is not considered when a kinetic model is used for calculating a flutter value. The method comprises the following steps: establishing a structure motion equation of flutter response according to the structure of the wind driven generator blade, performing numerical simulation on a two-dimensional flow field to establish a flow control equation, establishing a coupling system equation according to the structure motion equation and the flow control equation, and solving the coupling system equation to obtain a flutter value. On one hand, a structure motion equation is used for describing dynamics and stress conditions of a wind driven generator blade structure, on the other hand, a flow control equation is used for describing flow field data around the wind driven generator blade, and then a coupling system equation is solved to obtain a flutter value. The problem that the influence of fluid flow on blade structure movement is not considered when a kinetic model is used for calculating a flutter value is solved.

The invention provides a wind power high-voltage direct-current power transmission system, and belongs to the technical field of power transmission. The system comprises an intelligent wind driven generator, a modular converter station, an intelligent temperature monitoring direct current transmission line, a power grid friendly intelligent inverter station, and an intelligent regulation and control system integrating real-time data analysis, dynamic control and fault self-diagnosis. Through a maximum power point tracking algorithm and a self-adaptive control strategy, the system optimizes the wind energy conversion efficiency. The intelligent regulation and control system predicts wind power output by using a deep learning model and a random forest algorithm, dynamically adjusts voltage and current, and quickly responds to power grid demand changes. In addition, the system can quickly position and isolate faults, start a standby path and ensure continuous power supply. By adopting the wind power high-voltage direct-current power transmission system, the intelligent level of wind power high-voltage direct-current power transmission is improved, and the power transmission efficiency and the system stability are enhanced.

The invention provides a wind driven generator fault monitoring system, and relates to the technical field of wind driven generator fault monitoring. The wind driven generator fault monitoring system comprises a sensor deployment module and a warning alarm unit, and the sensor deployment module is composed of a vibration and strain sensor, a displacement and torque sensor, a pressure and temperature sensor, a magnetic field and oil temperature sensor and a plurality of sensor nodes. The plurality of sensor deployment modules are respectively and uniformly distributed on each wind generating set, each sensor deployment module acquires data information in a detection process in real time, and judges whether an alarm threshold value is out of limit according to a set alarm threshold value corresponding to each characteristic parameter. Through combination of a sensor deployment module, regular collection and detection of a lubricating oil sample and inspection of equipment such as an unmanned aerial vehicle, real-time monitoring is carried out on the wind generating set more comprehensively and meticulously, potential faults are found in time and analyzed and processed, and corresponding schemes can be customized conveniently for maintenance and replacement.

The invention provides a large megawatt fan converter heat dissipation device and method based on seawater cooling, the large megawatt fan converter heat dissipation device comprises a cooling circulation system connected with a converter, the cooling circulation system is connected with an external heat exchanger, and a cooling medium circulates between the converter and the external heat exchanger through the cooling circulation system; and a control three-way valve is arranged in the cooling circulation system to control the flow of a cooling medium participating in heat exchange so as to realize temperature adjustment. In order to cool a converter of a high-power wind turbine generator, three external cooling system control schemes are listed: an external cooling system is an independent air-cooling heat dissipation system, the external cooling system is an independent seawater cooling heat dissipation system, and the external cooling system is an air-cooling and seawater cooling heat dissipation system; the heat dissipation capability of the high-power wind turbine generator converter is ensured, the operation stability of the wind turbine generator core part converter is improved, faults caused by high operation temperature of the converter are reduced, the wind turbine generator is enabled to operate reliably, and the availability of the wind turbine generator is improved.

The invention discloses a direct black-start method and system for a grid-forming type permanent magnet direct-drive wind turbine generator, and the method comprises the steps: starting a rotor-side converter, accelerating a permanent magnet direct-drive fan to a given rotating speed, continuously charging a direct current side when the rotating speed rises until a rated voltage is reached, and maintaining the capacitor voltage of the direct current side through machine-side control; a grid-side converter is started, and inertia support is provided for the system through control of the virtual synchronous machine; a load is accessed, and a virtual synchronous machine and a linear active-disturbance-rejection technology are combined to improve the stability of a network construction type system. According to the method, the autonomous frequency and voltage supporting capacity of the direct-driven wind turbine generator are improved, the direct-driven wind turbine generator can independently serve as a black-start power supply to participate in power grid black-start, and the black-start process can be effectively achieved for a regional power grid lacking a conventional black-start power supply.

The invention discloses a wind power generation variable pitch load suppression method and system, and relates to the technical field of wind power generation variable pitch load suppression, and the method comprises the steps of basic data acquisition, basic data analysis, power generation rate analysis, load data analysis and load abnormity processing. Whether hydraulic variable pitch operation is carried out or not is judged, then whether the power generation rate of the wind driven generator is qualified or not is judged, the wind load, the inertia load, the gravity load and the hydraulic cylinder load of each blade are combined for analysis, then the load coupling value of each blade is obtained, and the load abnormal condition of the wind driven generator is obtained through analysis; the problem of limitation existing in the current wind power generation variable-pitch load suppression analysis process is solved, comprehensive and objective analysis of wind power generation variable-pitch load suppression analysis is achieved, and reliability and authenticity of a wind power generation variable-pitch load suppression analysis result are guaranteed.

The invention is applied to the technical field of wind driven generator blade production, and discloses a wind driven generator blade production detector which comprises a testing frame, a supporting frame is fixedly arranged at one end of the testing frame, a rotating center rotating shaft is installed at the upper end of the supporting frame, and testing blades are fixedly installed on the outer side surface of the center rotating shaft through bolts. A supporting rod is fixedly arranged on the surface of the outer side of the central rotating shaft, a dynamic detection mechanism is arranged on the surface of the inner side of the functional ring, and the influence of different motion states on a detection result is reduced through a mode of carrying out detection in the rotating process of the tested blades. According to the wind driven generator blade production detector, the mode that the test blade is installed on the center rotating shaft and driven to rotate is adopted, the rotating state of the test blade in the actual working condition is simulated to guarantee the accuracy of the detection result, real-time detection is achieved in cooperation with the dynamic detection mechanism installed on the inner side surface of the functional ring, and the detection accuracy is further improved.

The invention discloses a wind power prediction method and device based on a WTC-Informer algorithm, equipment and a medium, and relates to the technical field of wind power prediction. The wind power prediction method comprises the following steps: acquiring operation data of a wind driven generator; and inputting the operation data into a pre-trained wind power prediction model which is trained in advance and is based on a WTC-Informer algorithm, and executing the following data processing steps to obtain a prediction sequence of the active power of the wind driven generator. According to the operation data, high-frequency components and low-frequency components are extracted through wavelet transform and spliced, and multi-scale features are obtained. Through an ECA channel attention mechanism, weights are dynamically distributed for each feature channel. And then, through an Informer encoder formed by stacking a plurality of sparse self-attention coding layers, the calculation complexity of attention is reduced. And finally, outputting a future wind power prediction sequence through a generative decoder by utilizing a sparse attention extraction time sequence mode and combining a connection feature map output by the cross-attention fusion encoder.