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800 results about "Wind driven" patented technology

Wind Driven Rain is an illusive definition that is almost as illusive as the payments received by your insurance company from damages resulting from it. Simply put, wind driven rain is damage caused by rain that comes through an opening being propelled by wind or wind driven.

Semi-submersible type wave energy-wind energy integrated power generation platform and damping regulation and control method of damping regulation and control system of semi-submersible type wave energy-wind energy integrated power generation platform

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.
Owner:JIANGSU UNIV OF SCI & TECH

Active-disturbance-rejection full-wind-speed power smoothing method based on kinetic energy of fan rotor

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.
Owner:HUANENG POWER INT ENERGY DEV CO LTD +2

Wind power cluster regulation and control method, system and equipment based on distributed computing and medium

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.
Owner:HUANENG JIUQUAN WIND POWER CO LTD

Control method and device of wind driven generator, terminal and storage medium

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.
Owner:华能(临高)新能源有限公司 +1

Wind power generation device and wind power generation control method thereof

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.
Owner:ZHONGSHAN AMIRAY TECHNOLOGY CO LTD

Large megawatt fan converter heat dissipation device and method based on seawater cooling

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.
Owner:THREE GORGES NEW ENERGY OFFSHORE WIND POWER OPERATION & MAINTENANCE JIANGSU CO LTD

Wind power generation variable pitch load suppression method and system

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.
Owner:SHENYANG INST OF ENG

Wind driven generator large-torque transmission chain resistance increasing control method and system

The invention discloses a wind driven generator large-torque transmission chain resistance increasing control method and system, and relates to the technical field of wind driven generator resistance increasing control. The method comprises the steps that operation parameters of a wind driven generator are collected in real time and preprocessed; calculating a rotation fluctuation frequency set and a corresponding amplitude spectrum of the current time window, and tracking and locking the dominant vibration frequency; constructing a fan state space prediction model containing the torsional vibration state of the transmission chain, outputting the predicted variable quantity of the torque of the transmission chain in the next control period, constructing a filter bank based on the dominant vibration frequency, performing filtering compensation on the predicted variable quantity, and generating an electromagnetic torque given value; and performing phase lead compensation on the electromagnetic torque given value, generating a control instruction, sending the control instruction to the wind power converter, and controlling the wind power generator to output the corresponding electromagnetic torque by using the wind power converter. Through systematic multi-link cooperative processing, the vibration suppression effect and the operation stability of the transmission chain can be comprehensively improved.
Owner:CHINA HUANENG INT ENG & TECH CO LTD +1

Wind power blade fatigue damage early warning method and system based on modal energy deviation

The invention provides a wind power blade fatigue damage early warning method and system based on modal energy excursion, and relates to the technical field of wind driven generators. According to the method, a multi-dimensional health baseline library is established under the healthy state of a wind power blade, and a current total strain signal and temperature distribution are synchronously collected in the operation process of a fan; performing temperature-strain decoupling on the total strain by using a healthy baseline library, and accurately extracting a real mechanical strain signal caused by the mechanical load; on the basis, a working condition modal recognition method is adopted to steadily obtain a current inherent frequency and a strain modal shape from real mechanical strain; calculating a current modal energy proportion and comparing the current modal energy proportion with the health baseline to generate an offset index reflecting a modal energy localization degree; and finally, in combination with the amplitude, the duration and the dynamic evolution trend of the offset index, and in combination with a fatigue accumulated damage assessment result, performing graded early warning judgment, and realizing early perception, accurate positioning and risk graded output of the fatigue damage of the blade.
Owner:SHANTOU UNIV

Blade state monitoring device for wind driven generator and wind driven generator

The invention discloses a blade state monitoring device for a wind driven generator and the wind driven generator, and relates to the field of data monitoring, and the blade state monitoring device comprises a device integration multi-mode sensor module, a self-cleaning deicing module, a lightning stroke monitoring module, an edge calculation module, an anti-typhoon monitoring module, an energy supply module and a communication gateway module. Strain, vibration and temperature sensors are arranged at the root, the tip and the surface of the blade, and an icing detector is arranged at the front edge. And deicing is realized through hot air injection and the nano coating. And a lightning sensor and ultraviolet imaging are used for positioning lightning stroke. And an AI chip is arranged in the edge computing node to diagnose damage. The fiber grating sensor monitors typhoon strain. The solar film and the miniature wind driven generator supply power. And the communication module supports LoRaWAN and Beidou short messages. And the far-end intelligent diagnosis module predicts the service life through machine learning and provides maintenance suggestions. The system has the advantages that the blade state is accurately monitored in real time through the integrated multi-mode sensor and module technology, operation safety is guaranteed, the service life of equipment is prolonged, and efficient utilization of clean energy is facilitated.
Owner:HUANENG YINGKOU XIANRENDAO CO GENERATION CO LTD +1

Wind power generation blade maintenance positioning method, system and equipment and storage medium

The invention relates to the technical field of wind power generation equipment detection, in particular to a wind power generation blade overhauling and positioning method, system and equipment and a storage medium. Acquiring a multi-angle detection image of the blade surface of the wind driven generator; performing defect feature extraction on the multi-angle detection image, and identifying a damaged area on the surface of the blade; calculating actual physical coordinates of the damage on the surface of the blade based on the position coordinates of the damage area in the image in combination with the shooting parameters; and generating maintenance operation guidance information according to the actual physical coordinates. Through multi-angle image acquisition, the limitation of traditional single-visual-angle detection is broken through, full-coverage detection of the blade surface is realized, and a visual blind area and detection omission are effectively avoided; accurate identification and quantitative evaluation of various damage types such as cracks, corrosion, abrasion and deformation are realized through an intelligent feature extraction and matching technology; by establishing image coordinates and physical coordinates, the technical bottleneck of conversion from a two-dimensional image to a three-dimensional physical coordinate is solved, and accurate damage positioning information is provided for maintainers.
Owner:HUANENG JIUQUAN WIND POWER CO LTD

Anti-loosening bolt for wind driven generator

The utility model relates to the technical field of anti-loosening bolts, in particular to an anti-loosening bolt for a wind driven generator, which comprises a bolt and a nut, the bolt comprises a head and a screw rod, the nut is in threaded connection with the surface of the screw rod, a sliding groove is arranged on the surface of the screw rod, and a circular ring base plate is sleeved on the surface of the screw rod. And a limiting block is fixedly connected to the inner arc surface of the circular ring base plate, the limiting block is clamped in the sliding groove, an inserting groove is formed in the surface of the circular ring base plate, and a locking mechanism is fixedly connected to the surface of the nut. The bolt and the nut can be fixed through matching of the circular ring base plate and the locking mechanism on the nut, so that connection between the bolt and the nut is firmer, the problem of bolt loosening caused by various complex working conditions such as vibration, high and low load changes and strong wind impact in the operation process of the wind driven generator can be effectively solved, and the service life of the wind driven generator is prolonged. The reliability of bolt connection is greatly improved, and stable connection of all parts of the wind driven generator is ensured.
Owner:NINGBO XINGUANGYUAN WIND ENERGY TECHNOLOGY CO LTD

Off-ridge roof ventilation device

An off-ridge roof ventilation device for placing on an opening of a roof deck. The ventilation device comprises an elongated main hood with a curved shape. The right end of the main hood is closed by a right-side panel, and the left end of the main hood is closed by a left-side panel. The main hood comprises a perforated top face and a venting opening on a bottom face. A throat panel is placed on the bottom face of the main hood in a manner to reduce the venting opening. A perforated interior panel is placed between the top face of the main hood and the throat panel to eliminate wind driven rain and / or snow even in high wind situations. The perforations are preferably designed as mini-louvers, wherein the mini-louvers of the main hood and the mini-louvers of the throat panel comprise the same shape and count the same number.
Owner:MARCO INDS

Control method, device and equipment of vertical axis wind turbine, medium and product

The invention relates to the technical field of vertical axis wind driven generators, and discloses a control method, device and equipment of a vertical axis wind driven generator, a medium and a product. The control method of the vertical axis wind driven generator comprises the steps that according to historical environment data around a target vertical axis wind driven generator and historical operation data of the target vertical axis wind driven generator, the target vertical axis wind driven generator is controlled; determining a target relationship between the environmental condition and the optimal operation parameter combination; according to the current environment data around the target vertical axis wind turbine, predicting the environment trend in the preset time period to obtain environment prediction data; determining a target operation parameter combination according to the environment prediction data and a target relationship between the environment condition and the optimal operation parameter combination; the target vertical axis wind turbine is controlled according to the target operation parameter combination in the preset time period, the target vertical axis wind turbine is controlled according to the dynamic environment change, and the power generation efficiency is improved.
Owner:CHINA THREE GORGES CORPORATION

Novel bearing for fan blade main shaft of wind driven generator

The utility model discloses a novel bearing for a fan blade main shaft of a wind power generator, which relates to the technical field of generator bearing equipment, and comprises a bearing seat, a bearing seat base, a bearing cover, a sectional bearing bush, an upper bushing and a lower bushing, the top end of the bearing seat is provided with a circular-truncated-cone-shaped mounting groove, and the bottom end of the bearing cover is a circular-truncated-cone-shaped surface matched with the circular-truncated-cone-shaped mounting groove. A first gap is reserved between the outer wall of the upper bushing and the top wall of the circular-truncated-cone-shaped mounting groove and a first gap is reserved between the outer wall of the lower bushing and the bottom wall of the bearing cover, and a plurality of sectional bearing bushes are movably arranged in the first gaps at equal angles. Compared with the prior art, the service life of the bearing is prolonged, stable and long-acting operation of the wind driven generator is effectively guaranteed, smaller bearing bush segments are adopted, the difficulty in manufacturing, mounting and transporting the bearing bush is reduced, and only a small number of bearing bush segments which break down need to be replaced during maintenance.
Owner:SHAANXI TECHN INST OF DEFENSE IND

Built-in box-type transformer substation upward-moving cabin cover

The invention relates to the technical field of wind driven generator cabin covers, in particular to a built-in box transformer substation upward moving cabin cover which comprises a hood assembly, an upward moving cabin cover mechanism arranged on the hood assembly and an outdoor hoisting mechanism arranged on the upward moving cabin cover mechanism. The combined ladder mechanism is arranged in the hood assembly; and the energy supply propelling mechanism is arranged between the hood assembly and the upward moving hatch cover mechanism. A traditional closed type cabin cover is arranged to be the cabin body of the upward moving split structure and the upward moving cabin cover mechanism, when instruments or equipment in the cabin cover breaks down and needs to be integrally replaced, the upward moving cabin cover mechanism is lifted upwards, a port in the top of the cabin body is exposed in the external environment till the top end of the cabin body extends outwards to the maximum, and then the cabin cover is replaced. Instruments or equipment needing to be replaced are directly sent in and out from a port in the top of the cabin body in cooperation with an airborne device, and therefore the first-aid repair speed of workers can be increased in the power-off period of the wind driven generator.
Owner:JIANGSU CHANGYOU ENVIRONMENTAL PROTECTION TECH CO LTD

Multistage duct turbofan power generation equipment

The invention discloses multistage duct turbofan power generation equipment, and relates to the technical field of power generation equipment. The ducted shell comprises a first ducted shell body and a second ducted shell body which are coaxially arranged in a communicating mode. The flow guide assembly is arranged in the first duct shell and used for guiding external airflow into the second duct shell; the positioning assembly is arranged in the duct assembly; and the middle shaft is arranged in the duct assembly through a positioning assembly. Aiming at the pain points of structural fatigue, shaking and space waste caused by one-way torque conduction when a conventional wind driven generator is mounted on a mobile platform, a conformal integrated duct design is adopted, and a two-stage turbofan, a planetary reverse rotation mechanism and a permanent magnet generator are coaxially integrated, so that air flow shrinks in a trumpet-shaped duct to accelerate pre-swirl flow guide, and the flow guide efficiency is improved. The contra-rotating turbofan is further driven to do work synchronously, the torque is completely self-counteracted, high tip speed ratio operation can be achieved at the low wind speed, and efficient and zero-reaction-torque power generation in the narrow space of the mobile platform is achieved.
Owner:吴剑

Wind driven generator cluster power optimization distribution method based on congestion control

The invention discloses a wind driven generator cluster power optimization distribution method based on congestion control, and belongs to the technical field of wind driven generator cluster control. According to the method, the power distribution problem of the wind driven generator cluster is solved by using a congestion control thought through the similarity between the power flow and the information flow, so that the optimization solution of the output of each wind driven generator in the wind driven generator cluster is realized. Firstly, a global congestion index reflecting the overall power tracking accuracy of a wind driven generator cluster is constructed, and power tracking of a wind driven generator cluster level is achieved; then, constructing a local congestion index reflecting the operation cost of each wind driven generator, and realizing power optimization distribution of a wind driven generator level, thereby reducing the overall operation cost of a wind driven generator cluster; finally, on the basis of the two congestion indexes, the output power of each wind driven generator is adjusted in a self-adaptive mode, and power optimal distribution is achieved. The method is simple in calculation, low in communication burden, plug-and-play and high in practicability.
Owner:XI AN JIAOTONG UNIV

Method and system for monitoring wind-induced vibration of wind driven generator tower

The invention discloses a method and a system for monitoring wind-induced vibration of a tower drum of a wind driven generator. The method comprises the following steps: acquiring data by using a multi-mode sensor; performing numerical simulation on the acquired data to obtain a training data set; constructing an initial wind-induced vibration monitoring model of the wind driven generator tower; training the initial wind-induced vibration monitoring model of the wind driven generator tower tube by adopting the training data set to obtain a wind-induced vibration monitoring model of the wind driven generator tower tube; and carrying out actual wind-induced vibration monitoring on the wind driven generator tower tube by using the wind-induced vibration monitoring model of the wind driven generator tower tube. According to the method, through multi-sensor cooperation, cross-modal data fusion, physical mechanism constraint and edge lightweight design, the operation state of the tower drum is reflected from multiple dimensions, the accuracy of fault diagnosis is greatly improved, and high-precision monitoring of wind power tower drum bolt looseness is achieved.
Owner:HUNAN QUHE INTERACTIVE TECHNOLOGY CO LTD

Wind power generation rotor pneumatic unbalance detection method and system based on video analysis

The invention relates to the technical field of wind power generators, in particular to a wind power generation rotor pneumatic unbalance detection method and system based on video analysis, and the method comprises the steps: obtaining the operation video data of a wind power generator rotor from multiple angles; performing frame extraction on the operation video data of the wind driven generator rotor, and performing feature extraction on the extracted key frame to obtain a plurality of feature data of the wind driven generator rotor; and constructing a rotor pneumatic unbalance state prediction model based on a random forest algorithm, and after training, inputting a plurality of feature data of the wind driven generator rotor into the rotor pneumatic unbalance state prediction model for calculation to obtain a rotor pneumatic unbalance prediction state. The characteristics of the wind driven generator rotor are extracted by using the video data, the pneumatic unbalance state is accurately predicted through the random forest algorithm, the monitoring real-time performance and accuracy are improved, the fault occurrence rate is reduced, and the operation efficiency and reliability of the wind driven generator are improved.
Owner:HUANENG DINGBIAN NEW ENERGY POWER GENERATION CO LTD +1

Wind driven generator tower inspection robot

The invention discloses a wind driven generator tower inspection robot, and belongs to the technical field of wind power tower inspection, the wind driven generator tower inspection robot comprises a shell, a constant-pressure polishing mechanism for carrying out constant-pressure polishing and paint spraying on a tower is mounted on the front side of the shell, and a cable multi-section fixing mechanism for carrying out multi-section fixing on a rope cable is mounted on the rear side of the shell; the left side and the right side of the shell are provided with magnetic attraction moving mechanisms which can be attracted to the tower and move. The cable multi-section fixing mechanism comprises a multi-directional driving assembly, a clamping and releasing mechanism and a fixing assembly. In this way, a cable can be continuously limited, it is avoided that due to the fact that the cable is too long and shakes and pulls equipment on a tower, the equipment runs unstably, the magnetic attraction angle can be rapidly adjusted, the equipment is made to be attached to the radian of the tower for attraction, and the overall stability of the equipment during moving and polishing is improved; and constant pressure can be applied to the tower for polishing.
Owner:SHANGHAI DONGHAI WIND POWER CO LTD +3

Generator control method and system based on bionic eddy current regulation and control and magnetic variable pitch

The invention discloses a generator control method and system based on bionic eddy current regulation and control and magnetic variable pitch. The generator control method based on bionic vortex regulation and control and magnetic variable pitch comprises the steps that the wind speed is obtained, a variable geometric vortex generator is regulated and controlled according to the wind speed, when the wind speed is smaller than a first preset wind speed, the height of a fin of the variable geometric vortex generator is increased, and when the wind speed is larger than a second preset wind speed, the height of the fin is reduced. The first preset wind speed is smaller than the second preset wind speed; pressure distribution on the surface of the blade is obtained, when the pressure distribution on the surface of the blade is abnormal, the deformation area is positioned, and the bionic self-adaptive deformation structure is controlled to conduct self-adaptive deformation in the deformation area so as to guide airflow attachment; according to the wind speed and the pressure distribution on the surfaces of the blades, the magnetostriction variable pitch system is controlled to drive the blades to change the angles and the lengths, and according to the embodiment of the invention, the environmental adaptability, the reliability and the working efficiency of the wind driven generator can be effectively improved.
Owner:GUODIAN NANJING ELECTRIC POWER TEST RES CO LTD

Wind driven generator blade deicing system and phase change microcapsule coating spraying process

The invention provides a wind driven generator blade deicing system and a phase change microcapsule coating spraying process, and relates to the technical field of wind power generation equipment protection, the deicing system comprises a heating module, a spiral flow guide rib, a phase change microcapsule coating and a control module; the heating module comprises a heating piece and a fan communicated with the heating piece; the spiral flow guide rib is used for forming a rotational flow air duct, so that hot air formed by heating of the heating module forms rotational flow air flow; the phase change microcapsule coating is at least coated on the wall surface of the inner cavity of the blade; the control module is in communication connection with the heating piece and the draught fan and is configured to adjust the rotating speed of the draught fan and the heating power of the heating piece at least according to the state of the phase change microcapsule coating. The deicing system improves the heat transfer efficiency, enables hot air to effectively cover all areas of the blade, prolongs the residence time of the hot air in the inner cavity of the blade, and improves the hot air utilization rate. And the phase change microcapsule coating and the rotational flow airflow have a synergistic thermal effect, so that the temperature of the wall surface of the blade is effectively, quickly and uniformly increased, and the deicing efficiency is improved.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Wind driven generator blade hoisting device and method thereof

The invention relates to the technical field of wind power generation, in particular to a wind driven generator blade hoisting device which comprises two hoisting arms and a fixing rod fixed between the two hoisting arms. Adjusting frames are arranged at the two ends of the suspension arm, a bandage assembly is connected between the two adjusting frames through a winding assembly, and the blade is sleeved with the bandage assembly. According to the blade hoisting device, stable hoisting of a blade is achieved through the synergistic effect of the binding belt assembly and the profiling pressing assembly, firstly, the binding belt assembly is driven by the winding assembly, the length of a binding belt can be adjusted in the initial hoisting stage, it is ensured that the blade is horizontally and stably lifted by the double suspension arms, and the blade can be stably hoisted by the double suspension arms; the overall lifting stability is optimized; and then, the profiling pressing assembly is started, an elastic assembly in the profiling pressing assembly can be attached to the irregular arc-shaped surface of the blade in a self-adaptive mode, large-area profiling contact is formed, and the sideslip risk of the blade in the hoisting process is effectively restrained.
Owner:中国电建集团贵州工程有限公司

Anti-fatigue wind driven generator blade structure based on flexible material

The invention relates to the technical field of generator blades, and particularly discloses an anti-fatigue wind driven generator blade structure based on a flexible material, which comprises a mounting element, and the mounting element comprises a blade body; the blocking element is located on the side wall of the blade body, the blocking element comprises a plurality of exhaust notches formed in the blade body, and the blocking element selectively closes or opens the exhaust notches under the action of wind pressure; the cleaning element is located on the side wall of the blade body, intelligent opening and closing of the air exhaust notch are achieved through dynamic balance of spring pre-tightening force and air pressure, and the complete pneumatic appearance of the blade is maintained; the situation that due to the linear characteristic of a continuous pneumatic connection spring caused by traditional fixed hole opening, the drainage area and the air pressure are in positive correlation is avoided, accurate adjustment of the pressure relief threshold value within the range can be achieved, and due to the flexible contact design of a plugging column and an exhaust notch, the environment self-adaption capacity of microcracks caused by rigid impact is avoided.
Owner:HUANENG JIUQUAN WIND POWER CO LTD

Wind driven generator fixed time adaptive neural network variable pitch control method

PendingCN121251514AWind motor controlNeural network algorithmsWind drivenDynamic models
The invention belongs to the technical field of wind power control, and discloses a wind driven generator fixed time adaptive neural network variable pitch control method, which comprises the following steps: step 1, establishing a kinetic model of a wind driven generator, and initializing a system state and control parameters; 2, aiming at the wind driven generator system with external interference, designing a fixed time sliding mode surface based on a sliding mode thought; and step 3, designing a fixed-time adaptive neural network variable pitch controller. The method has the advantages that under the conditions that external interference exists in the wind driven generator and parameters are uncertain, rapid convergence of the rotor rotating speed tracking error within fixed time is achieved, and the convergence time does not depend on the initial state.
Owner:DEQING COUNTY ZHEJIANG UNIV OF TECH MOGANSHAN RES INST

Wind driven generator blade monitoring method and device, equipment and storage medium

The invention relates to the technical field of wind power generation, and discloses a wind driven generator blade monitoring method, which is applied to electronic equipment and comprises the following steps: acquiring a load parameter of a wind driven generator; and inputting the load parameters into the trained wind regime reconstruction model to enable the wind regime reconstruction model to generate wind regime data based on the load parameters. And inputting the wind regime data into the trained load calculation model, so that the load calculation model outputs load time sequence data of the blade based on the wind regime data. According to the method, when the load of the blade is monitored, compared with a mode of detecting the load borne by the blade by utilizing a sensor arranged at the root of the blade, the spanwise load of the blade can be monitored more comprehensively, so that the accuracy of monitoring the load of the blade of the wind driven generator is improved. The invention further discloses a monitoring device and equipment for the wind driven generator blade and a storage medium.
Owner:INNER MONGOLIA NEW VISION GROUP CO LTD +1

Temperature control system for cabin of wind driven generator

The invention relates to the technical field of wind power generation, in particular to a temperature control system for a cabin of a wind driven generator, which comprises an acquisition unit for monitoring the current temperature in the cabin and the current temperature and humidity outside the cabin; the temperature adjusting unit has a cold air flow / hot air flow output function, and the current temperature reaches the set target temperature by conveying cold air flow / hot air flow into the cabin; the control unit is provided with a cold air flow / hot air flow output quantity accounting module and an execution module used for controlling the temperature adjusting unit to operate; the closed-loop control algorithm and the accurate airflow channel design are adopted, the adjusting sensitivity and the control accuracy of the cabin temperature control system of the wind driven generator are remarkably improved, the airflow flowing path is optimized, and the condensation and removal efficiency of water vapor is enhanced; in addition, the system can adapt to different environmental conditions through the dynamically adjusted proportion, integral and differential coefficients, and the stability and reliability of temperature adjustment are ensured.
Owner:HUANENG YINGKOU THERMAL POWER CO LTD

Green-energy self-power-generation endurance system of carrier

The invention provides a green energy self-power-generation endurance system of a carrier, which comprises a wind power generation assembly, a double-sided photovoltaic panel assembly, a double-sided photovoltaic soft curtain assembly and an air power generation assembly, which can utilize respective advantages to combine or independently carry out green energy power generation. The wind power generation assembly comprises a main air duct and a plurality of one-shaft double-body generators. The main air duct is provided with a closed cabin; a plurality of one-shaft double-body generators are arranged in the main air duct and the closed cabin in a matrix manner; each one-shaft double-body generator comprises a wind power blade arranged on a transmission shaft; the transmission shaft is located in the main air duct, and the two ends of the transmission shaft are rotatably connected to the wind driven generator in the closed cabin. According to the implementation mode, wind resistance airflow generated by driving of the carrier acts on the one-shaft double-body generator through the main air duct, so that each transmission shaft drives the two wind driven generators to synchronously generate electricity. The system has an extremely wide application range and can provide green electric energy for corresponding scenes.
Owner:北京吉圣金润企业管理有限责任公司

Pay-off tensioning device for wind driven generator engineering

The utility model discloses a pay-off tension device for wind driven generator engineering, and relates to the technical field of wind driven generator engineering. Comprising a bottom plate and a movable plate, the bottom plate is provided with an anti-rotation mechanism, the anti-rotation mechanism comprises two pay-off racks fixedly connected to the top of the bottom plate, the rear side of the pay-off rack located on the rear side is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a rotating shaft through a coupler; the front end of the rotating shaft penetrates through the two pay-off racks and is rotationally connected with the two pay-off racks, a rotating disc is fixedly connected to the front end of the rotating shaft, a plurality of notches are formed in the front end of the rotating disc, two positioning rods are slidably connected to the front side of the moving plate, and the rear ends of the two positioning rods penetrate through the moving plate; the rear ends of the two positioning rods extend to the inner wall of the notch and are in sliding connection with the notch. According to the utility model, inertia generated when the motor stops paying off is resisted through the anti-rotation mechanism, so that the tension of the cable is prevented from being influenced by rotation of the cable roller caused by inertia.
Owner:GANSU XINJING YUANENG ENVIRONMENTAL PROTECTION TECH CO LTD