33 results about "Wind turbine design" patented technology

The invention relates to the technical field of data processing, and discloses a wind turbine generator optimization design method based on tidal current-wave-sediment coupling simulation. The method comprises the following steps: carrying out adaptive time step adjustment on marine environment data through a physical process intensity discrimination algorithm to obtain tidal current field, wave field and sediment transportation data; carrying out fluid-solid coupling calculation on the structural parameters of the wind turbine generator to obtain structural vibration response and ocean load distribution data, and predicting pile foundation scouring depth distribution; carrying out time-varying coefficient correction on the pile foundation bearing capacity parameters to obtain dynamic bearing capacity evaluation data; inputting a multi-objective optimization algorithm to obtain a Pareto optimal solution set; and obtaining a wind turbine generator optimization design scheme through engineering feasibility verification and screening. The technical problems that in existing offshore wind turbine generator design, tidal current-wave-sediment coupling simulation space-time scales are not matched, the pile foundation scouring prediction precision is insufficient, bearing capacity evaluation lacks time-varying characteristic consideration, and the multi-target optimization design capacity is insufficient are solved.

The invention discloses a method for quickly speculating high-altitude wind speed based on earth surface observation, which belongs to the technical field of wind resource assessment and comprises the following steps: acquiring earth surface high-frequency ultrasonic data and iron tower wind speed data, extracting earth surface wind speed, friction speed and atmospheric stability, and determining earth surface roughness, boundary layer height and earth turning wind; a wind profile calculation model is selected according to different change conditions of the high-altitude wind speed under the atmospheric stability condition, and wind speed vertical distribution data is calculated by combining the surface roughness, the boundary layer height and the geostrophic wind. According to the method, the problem of insufficient precision in high-altitude wind speed calculation of a traditional method is solved, the change of the wind speed along with the height under different atmospheric stability conditions is accurately reflected, the applicability and reliability of the wind profile model are remarkably improved, and efficient and low-cost technical support is provided for wind power plant site selection, wind turbine design and wind power prediction.

The application relates to the technical field of wind power generation, and discloses a wind turbine design method adopting a frictional tuned mass damper, which adds a frictional tuned mass damper to a man platform in a tower drum of a wind turbine, establishes a motion equation of the wind turbine after adding the frictional tuned mass damper based on a structural dynamics principle, deduces a mathematical analytic expression of a system dynamic coefficient, and obtains parameters of the frictional tuned mass damper through a system optimization theory. The application solves the problems that the prior art is difficult to realize damping through the tuned mass damper in the narrow space in the cabin or the tower drum, and the damping control effect is poor.

This invention relates to a method for calculating bimodal wave spectra for offshore wind turbine design, applicable to the field of offshore wind power generation. Ocean waves typically exist as a mixture of wind waves and swells, manifested in a bimodal wave spectrum. Addressing the issue of poor accuracy in bimodal wave spectrum calculations using conventional wave spectrum calculation methods, this invention proposes screening criteria for bimodal wave spectra and methods for handling secondary peak dispersion, based on measured wave data. It also provides a calculation method for bimodal spectra through combinations of different wave spectra. The calculation process of this invention is as follows: 1. This invention proposes screening criteria for effective measured wave data and screening criteria for bimodal wave spectra based on measured wave data; 2. It provides dimensionless sample spectra and their averaged spectra through spectral estimation methods; 3. It derives the calculation formula for bimodal spectra and the calculation method for characteristic wave elements by fitting combinations of different spectra.

The invention discloses a wind turbine generator complete machine design method, device and equipment and a storage medium, which are applied to the field of wind turbine generators, and the method comprises the following steps: determining a target optimization variable and a complete machine optimization variable of a wind turbine generator and a part optimization variable of each unit part, and constructing a complete machine parameter model based on the complete machine optimization variable and the part optimization variable; generating data of each variable in the complete machine parameter model in a preset range to construct a variable data set; calling an optimization algorithm, and under the target working condition and the constraint condition, performing optimization in the variable data set by taking target optimization variable optimization as a target to obtain a target data set; and determining target data of each variable from the target data set, and carrying out complete machine design of the wind turbine generator based on the target data. Complete machine multi-objective optimization of the wind turbine generator is achieved based on the optimization algorithm, the complete machine iteration efficiency can be improved, and a better solution scheme of complete machine design is explored through the optimization algorithm.

Figure 3.1 is a front view of the design showing a wind turbine. Figure 3.2 is a back view of the design showing a wind turbine. Figure 3.3 is a right side view of the design showing a wind turbine. Figure 3.4 is a left side view of the design showing a wind turbine. Figure 3.5 is a top view of the design showing a wind turbine. Figure 3.6 is a bottom view of the design showing a wind turbine. Figure 3.7 is a perspective view of the design showing a wind turbine.

The invention discloses a simulation method and system for checking a wind generating set based on an aircraft. The simulation method comprises the following steps: acquiring meteorological data, fan design parameters and operation data and aircraft inspection task data; inputting the meteorological data into a meteorological simulation module to obtain a first meteorological simulation wind field model; inputting the first meteorological simulation wind field model and the fan design parameters and operation data into a fan dynamic simulation module to obtain a first fan dynamic simulation model; inputting the first meteorological simulation wind field model, the first fan dynamic simulation model and the aircraft inspection task data into an aircraft control simulation module to control an aircraft to execute an inspection task so as to obtain a plurality of aircraft inspection strategy sets; and inputting the plurality of aircraft inspection strategy sets into a fan defect detection module to verify the effectiveness of the strategy sets on fan defect detection, and outputting a simulation result. According to the method, an aircraft-based fan defect inspection strategy can be optimized in the aspects of efficiency, cost, safety and the like.

The present application relates to wind power data detection technical field, specifically provide a kind of ground-based laser radar windfinder turbulence intensity correction method and device, comprising: based on the wind speed data measured at the height to be measured of ground-based laser radar windfinder determines the turbulence intensity measured at the height to be measured of ground-based laser radar windfinder;The turbulence intensity measured at the height to be measured of ground-based laser radar windfinder is corrected based on the correction coefficient obtained in advance;Wherein, the correction coefficient obtained in advance is obtained by the wind speed data measured at threshold height of ground-based laser radar windfinder and the wind speed data measured by anemometer installed on threshold height reference wind tower.This application provides technical scheme, establishes turbulence intensity correction expression relationship, further improves the accuracy level of laser radar windfinder measured turbulence, and provides reliable data guarantee for wind turbine design and wind farm planning.

A wind power shafting support structure and its clearance grinding method, which relates to the technical field of wind turbine design. The support structure includes: the first, second, and third bearings. The first, second, and third bearings are all tapered roller bearings. The outer rings of the first, second, and third bearings are arranged in the bearing housing, and the inner rings are arranged on the main shaft. A front inner spacer ring is arranged between the inner rings of the first and second bearings, and a front outer spacer ring is arranged between the outer rings of the first and second bearings. A rear inner spacer ring is arranged between the inner rings of the second and third bearings, and a rear outer spacer ring is arranged between the outer rings of the first and second bearings. The clearance grinding method includes: First, measure the inner ring height, outer ring height, and assembly height of each bearing. Second, measure the height of the front outer spacer ring and the height of the rear outer spacer ring. Third, calculate the height of the front inner spacer ring and the height of the rear inner spacer ring. Applying the present invention can solve the technical problem that the main shaft bearings of the existing wind power main shaft structure are prone to early failure due to the inclination of bearing installation or the improper press-fitting of the clearance.

The invention provides an RTDS-based wind turbine generator electrical parameter design and real-time simulation method and a related device. The method comprises the following steps: establishing a parameter design algorithm in a real-time digital simulation system; the parameter design algorithm is used for calculating corresponding design parameters according to given fan design requirement parameters; establishing an RTDS real-time simulation model of the permanent magnet synchronous wind driven generator in a real-time digital simulation system; fan design requirement parameters are input into the RTDS real-time simulation model, design parameters are calculated through a parameter design algorithm, the RTDS real-time simulation model is imported into the RTDS real-time simulation platform for online simulation, and correctness of the design parameters is continuously corrected and verified. According to the method, only the design requirements of the system need to be provided, the RTDS real-time simulation model integrating design and verification is utilized, design parameters are automatically calculated, and design of the wind power generation system is completed. And meanwhile, parameters in the real-time simulation model are automatically modified, real-time simulation is carried out, and the correctness of the design is verified.

This invention relates to the field of new energy management technology, and in particular to a method and system for tracing the source of green electricity consumption. The method includes the following steps: obtaining wind turbine design drawings and constructing a wind power generation model; performing wind power generation simulation based on the model to obtain wind power generation data; detecting gear meshing anomalies in the model based on the data to obtain gear meshing anomaly data; identifying bearing cracks based on the anomaly data to obtain bearing crack data; locating crack defects based on the data; designing a fatigue-resistant wind power structure based on the crack defect location; integrating the fatigue-resistant structure into the model and predicting wind power output; and generating green electricity digital certificates based on the wind power output. This invention improves the reliability of wind power structures, the accuracy of fault detection, and the credibility of green electricity traceability based on new energy management technology, comprehensively enhancing the efficiency of green electricity consumption and management transparency.

The invention is suitable for the technical field of fan design, and provides a fan airfoil optimization method and system based on a Kriging proxy model and a genetic algorithm, and the method comprises the following steps: carrying out the parameterized expression of an airfoil curve based on a classification function and shape function transformation method, and obtaining the expression of the airfoil curve; selecting sample points, calculating a power coefficient of each sample point, and constructing sample point data; based on the sample point data, constructing and training a Kriging agent model; power coefficient maximization is used as a target function, parameters and installation angles in an expression of an airfoil curve are used as design variables, constraint conditions are set, and global optimization is carried out on the basis of a Kriging agent model based on a multi-island genetic algorithm; and based on an optimization result, through comprehensive evaluation, selecting an optimal airfoil profile. According to the optimized airfoil profile, the power coefficient of the fan is remarkably improved, a systematic theoretical basis is provided for the design of the airfoil profile of the fan, and meanwhile, an effective technical support is provided for improving the aerodynamic performance of the fan.

The present invention relates to a method for optimizing design parameters of a wind turbine generator set considering environmental benefits. The technical scheme is: by analyzing the components of the initial investment cost of the wind turbine generator set, an expression for the relationship between the costs of each component and its quality is established; an expression for the annual power generation of the wind turbine generator set is established from the two aspects of wind resource distribution and unit power, and then an expression for the annual operation and maintenance cost is obtained; a wind turbine generator set design parameter optimization model is established from the four aspects of initial investment cost, annual fixed rate of return, annual operation and maintenance cost, and annual power generation; considering the environmental benefits of the wind turbine generator set, a particle swarm algorithm is used to optimize the four design parameters of the wind rotor diameter, hub height, rated power, and rated wind speed, so as to obtain the minimum actual investment cost under the optimal wind turbine generator set design parameters, thereby avoiding over-optimization of the investment cost of a certain design parameter and neglect of the investment cost of other design parameters.

Designs for support towers for wind turbine with or without integrated solar panels, as shown and described.

The application discloses a wind turbine design method for three wind wheels, comprising the following steps: building a wind turbine model test table in a wind tunnel test section and placing a grid at the entrance of the wind tunnel test section; setting output power collection parameters, opening the wind tunnel, collecting output power, and closing the wind tunnel; repeating the above experiment to collect power of the three wind wheel wind turbine; processing data to estimate the degree of electricity cost with the test data; estimating the cost and calculating the annual power generation of the single wind wheel wind turbine unit and the three wind wheel wind turbine unit, and comparing and evaluating the design effect of the designed three wind wheel wind turbine. The application optimizes the existing single wind wheel wind turbine, solves the problems of low power generation and large occupation area of small wind turbines by designing the three wind wheel wind turbine, solves the problems of transportation, installation and maintenance of large wind turbines, and has important engineering significance for the research on the aerodynamic characteristics of the wind turbine.

The present invention discloses a method for designing a tower of a wind turbine generator set, comprising the following steps: obtaining the initial preset parameters of the tower, wherein the initial preset parameters include: the diameter of the upper end of the tower, the diameter of the lower end of the tower and the height of each pipe section; based on the initial parameters, combined with the design parameters of the wind turbine and the estimated load at the top and the estimated load at the bottom of the tower, interpolating and calculating the design parameters of the pipe section, wherein the design parameters of the pipe section include: diameter and wall thickness. In addition, an engineering algorithm is used to calculate the first-order natural frequency of the tower using the obtained pipe section diameter, wall thickness parameters and wind turbine parameters, and an evaluation is performed. The above-mentioned evaluation process realizes synchronous real-time calculation through the interpolation method, and after each parameter is reviewed, a better design scheme can be obtained for detailed calculation and verification, so that the tower calculation and verification process can be completed at one time, which simplifies the design process and improves the design efficiency of the wind turbine generator set tower.

The present invention discloses an aerodynamic design method for a small wind turbine under variable wind speed conditions, specifically: selecting a wind farm area where the wind turbine is arranged and determining the wind resource conditions in the area, selecting and calculating the initial parameters of the small wind turbine to be designed and the basic design parameters of the wind rotor; dividing the wind rotor blade profile and correcting and optimizing the installation angle and chord length of each profile, improving the wind energy capture capability of the wind turbine to be designed under low wind speed conditions, and then improving the power conversion output capability under variable wind speed conditions. After the aerodynamic design of the small wind turbine wind rotor is performed using this method, the utilization degree of low-grade wind energy under variable wind speed conditions can be improved, and the power generation under low wind speed conditions can be increased by 8% to 15%; and the rated design point conditions meet the design requirements, and the design deviation is about 1%, which generally increases the power generation by 5% to 10%. By carrying out wind turbine design by this method, the power generation of small wind turbines in variable wind speed areas can be greatly improved.

Figure 5.1 is a front view of the design showing a wind turbine. Figure 5.2 is a back view of the design showing a wind turbine. Figure 5.3 is a left side view of the design showing a wind turbine. Figure 5.4 is a right side view of the design showing a wind turbine. Figure 5.5 is a top view of the design showing a wind turbine. Figure 5.6 is a bottom view of the design showing a wind turbine. Figure 5.7 is a perspective view of the design showing a wind turbine.

The invention discloses a wind power shafting supporting system and a bearing clearance match grinding method thereof, and relates to the field of wind turbine generator design. The wind power shafting supporting system comprises a first bearing set, a second bearing set, a front spacer ring set and a rear spacer ring set; steps for limiting the assembling positions of the two bearing sets are arranged in the bearing seat, the first bearing set is installed on the upwind direction side of the main shaft and comprises a first bearing and a second bearing, and the second bearing set is installed on the downwind direction side of the main shaft and comprises a third bearing and a fourth bearing; the front spacer ring group is arranged between the first bearing and the second bearing and comprises a front inner spacer ring and a front outer spacer ring; the rear spacer ring group is arranged between the third bearing and the fourth bearing and comprises a rear inner spacer ring and a rear outer spacer ring; the first bearing pack adopts single-row tapered roller bearings with the same specification, the second bearing pack adopts single-row tapered roller bearings with the same specification, and the clearances of the two bearing packs are independently matched and ground through respective corresponding spacer rings. Loads between the bearings are evenly distributed, the size of the fan is reduced, and the machining difficulty of the ultra-high-power fan is lowered.

The present invention discloses an integrated drive system structure and a lubrication method, which relate to the technical field of wind turbine design. It includes a bearing seat, a front main bearing, and a rear main bearing. There are a first boss and a second boss provided on the bearing seat. The cavity between the first boss and the front main bearing and the internal cavity of the front main bearing are used to store grease for lubricating the front main bearing. The cavity between the second boss and the rear main bearing and the internal cavity of the rear main bearing are used to store grease for lubricating the rear main bearing. According to the volume of the cavity between the front main bearing and the first boss and the volume of the internal cavity of the front main bearing, the grease filling amount of the front main bearing is determined. According to the volume of the cavity between the rear main bearing and the second boss and the volume of the internal cavity of the rear main bearing, the grease filling amount of the rear main bearing is determined. The above drive system structure and lubrication method apply grease lubrication to the direct-drive wind power main bearing, which can enable the front main bearing and the rear main bearing to obtain stable and good lubrication effects, improve the service life and reduce the maintenance cost.

Figure 4.1 is a front view of the design showing a wind turbine. Figure 4.3 is a left side view of the design showing a wind turbine. Figure 4.4 is a right side view of the design showing a wind turbine. Figure 4.5 is a top view of the design showing a wind turbine. Figure 4.6 is a bottom view of the design showing a wind turbine. Figure 4.7 is a perspective view of the design showing a wind turbine.

The invention discloses a method and system for determining a short-circuit demagnetization checking scene of a permanent magnet wind driven generator, and relates to the technical field of permanent magnet wind driven generators, and the method comprises the steps: obtaining a joint probability density function of the wind speed of a target wind field and the environment temperature; determining a plurality of candidate check scenes according to the joint probability density function; respectively calculating the output power of the permanent magnet wind driven generator after the short-circuit fault occurs in each candidate checking scene; constructing an expected value equation based on the joint probability density function and the output power; and solving the expected value equation, and determining the candidate check scene corresponding to the wind speed value and the environment temperature value satisfying the equation as a final short circuit demagnetization check scene. According to the method, the problems that the design of the permanent magnet wind driven generator is too conservative and the power density improvement is restricted due to the fact that a minimum probability scene is adopted as a checking reference in the prior art are solved, and the power density of the permanent magnet wind driven generator can be effectively improved on the premise that the overall output reliability is ensured.

The present invention relates to a peripheral support wind turbine designed to take advantage of non-linear wind speed profiles, wherein the turbine comprises a rotor with blades of constant cord and increasing thickness, the blades being supported by a peripheral rotating ring, wherein the twist angle of the blade section attached to the peripheral rotating ring is greater than the rest of the blade sections; wherein the cord length of the airfoils is constant along the length of the blade; wherein the thickness of the airfoils is increasing along the length of the blade, with thinner airfoils near the center; and wherein the turbine has an automatic protective folding system designed to radially fold the blades so that the turbine enters an aerodynamic stall.

The invention discloses a main scale scheme design method for a tension leg floating type fan foundation and the floating type fan foundation, and the method comprises the following steps: determining target wind field sea area water depth, extreme wave environment condition parameters and wind generating set design parameters, determining ship body displacement, determining the diameter of a central stand column, ship body draft, and the displacement and height of the central stand column; determining the displacement of a single buoyancy tank according to the displacement of the ship body and the displacement of the central upright post; the method comprises the steps of determining the included angle between every two adjacent buoyancy tanks and the linear distance between the outer edges of every two adjacent buoyancy tanks, determining the lengths of the buoyancy tanks according to the included angles and the linear distances, and determining the widths and the heights of the cross sections of the buoyancy tanks according to the water displacement of the buoyancy tanks and the lengths of the buoyancy tanks. The calculation mode is clear, and a tension leg floating type fan foundation scheme which is simpler in structure and more economical is provided.

The invention provides an anti-typhoon offshore wind turbine and fishery breeding collaborative layout optimization method and related equipment, and relates to the technical field of wind turbine design. The method comprises the following steps: constructing a computational domain comprising a fan group, an air domain and a sea area; based on a multiphase flow model and a turbulence model, coupling a typhoon gradient wind field and a wave spectrum in a computational domain to simulate the influence degree of a typhoon on a fan group and a sea area, and obtaining a simulation result; and determining the positions of the fan group and the culture area in the sea area based on the simulation result. According to the method, the influences of typhoons and sea waves on the sea area can be mutually coupled, the accurate simulation result is obtained, the positions of the wind turbine group and the culture area in the sea area are determined accordingly, and the ecological benefits of the culture area are maximized while the safety of the wind turbine group is guaranteed.

The invention discloses a fan performance safety margin assessment method, and relates to the technical field of wind power equipment safety assessment, the fan performance safety margin assessment method comprises the following steps: obtaining operation parameters of a fan in a preset monitoring period, and processing the operation parameters to form standardized operation parameters; presetting a margin evaluation threshold value of a performance parameter according to a fan design specification, and generating a preliminary margin evaluation sequence according to a relative deviation between the standardized operation parameter and the margin evaluation threshold value; constructing a long short-term memory network model in combination with an attention mechanism, training the long short-term memory network model by using historical fan operation parameters, inputting the preliminary margin evaluation sequence into the trained long short-term memory network model, outputting a comprehensive safety margin index, and obtaining a safety margin evaluation result; and according to a comparison result of the comprehensive safety margin index and a preset safety margin threshold value, the final performance safety level of the fan is determined. According to the method, the accuracy, the dynamic adaptability and the engineering interpretability of fan performance safety evaluation can be improved.

The present invention provides a method and device for determining design parameters of a wind turbine based on complex terrain conditions. The method includes: determining at least two candidate turbine locations according to the incoming flow direction of a wind farm and a preliminary turbine layout plan, where the preliminary turbine layout plan is used to characterize the layout positions of the turbine locations of the wind turbines in the wind farm area; for any candidate turbine location, determining the time series data of the wind condition parameters of different sectors corresponding to the candidate turbine location according to the meteorological parameters of the candidate turbine location and a preset number of sectors included in the candidate turbine location, and determining the terrain complexity level corresponding to the candidate turbine location, where the terrain complexity level is used to characterize the complexity of the terrain corresponding to the sector where the main wind direction of the candidate turbine location is located; designing the wind turbine design parameters of each candidate turbine location according to the time series data of the wind condition parameters of different sectors corresponding to each candidate turbine location and the terrain complexity level corresponding to each candidate turbine location. The present invention improves the accuracy of determining the wind turbine design parameters.

A bladeless wind turbine device comprising a plurality of impellers, including at least two round-shaped impellers with different radii. A central shaft is centrally connected to the plurality of impellers, allowing for rotation around the shaft's central axis. Additionally, the device includes a tower column connected to the central shaft and one or more generators for converting mechanical energy into electrical energy. This bladeless wind turbine design enhances energy efficiency and is ideally suited for the effective capture and conversion of wind energy, minimizing mechanical complexity and optimizing performance in variable wind conditions.

This application provides a method, apparatus, device, and medium for generating the adaptability of wind turbine design parameters. This application relates to the field of wind turbine design parameter adaptability evaluation. The method includes: acquiring environmental data of a target sea area; obtaining target design parameters for the wind turbine in the target sea area based on the environmental data; acquiring actual design parameters of the target wind turbine; and obtaining the adaptability of the target wind turbine in the target sea area based on the target design parameters and the actual design parameters. This method aims to improve the accuracy of generating the adaptability of wind turbine design parameters.

The application relates to the technical field of wind turbines, and discloses an offshore wind turbine modal parameter identification method, system and terminal equipment. The method comprises the following steps: obtaining acceleration response signals of an offshore wind turbine at multiple measuring points in a running state; determining a block matrix and system order of a state space model based on the acceleration response signals; performing sensitive analysis on the block matrix and system order to determine an optimal system order interval and an optimal block matrix row number interval of the offshore wind turbine; performing random subspace identification in the optimal system order interval and the optimal block matrix row number interval to generate a stability diagram containing multiple poles; and performing density peak value clustering on each pole in the stability diagram to obtain a modal parameter identification result of the offshore wind turbine in the optimal system order interval and the optimal block matrix row number interval. The method can provide an actual measurement basis for offshore wind turbine design.