169 results about "Pitch control" patented technology

The invention relates to the technical field of wind power generation, and discloses a variable-pitch control method, device, equipment and product for a floating type wind turbine generator. A wind turbine generator model is constructed by comprehensively considering multiple factors such as aerodynamics, hydrodynamics and mooring dynamics, and a gain scheduling control model is introduced into a preset PI control method; the method can adapt to different working conditions, effectively overcomes the limitation of the traditional PID control in the complex dynamic environment of the floating wind turbine generator, reduces the power fluctuation, and reduces the structure resonance risk. A preset platform pitching value is introduced into expert PID control, and Kohmann coordinate transformation is combined, so that the negative damping problem of a unified variable-pitch floating type fan is solved, and accurate distribution of control signals is realized. And finally, through the control combination of unified variable pitch and independent variable pitch, the pitching amplitude is reduced, the blade load is reduced, the stability and safety of the floating type wind turbine generator are remarkably improved, and reliable operation of the generator is guaranteed.

The invention discloses a wind turbine generator self-adaptive control method, medium and system based on environmental turbulence, and the method comprises the steps: S1, collecting the power of a generator and the current pitch angle in the normal operation process of a wind turbine generator; s2, estimating the real-time wind speed based on the power of the generator and the inherent parameters of the unit; s3, calculating real-time environmental turbulence intensity according to the real-time estimated wind speed; s4, inputting the real-time environmental turbulence intensity and the current pitch angle into a fuzzy controller, and calculating a variable pitch control parameter coefficient according to a preset fuzzy rule; and S5, based on the variable-pitch control parameter coefficient, the variable-pitch control parameter is adjusted to carry out variable-pitch control, and self-adaptive stable operation of the unit is achieved. According to the method, no hardware needs to be additionally installed, unit load impact and rotating speed fluctuation caused by large turbulence can be effectively restrained, and on the premise that it is ensured that the limit load of key components does not exceed the limit, the operation stability of the unit is improved, the power generation loss is reduced, and cost reduction, efficiency improvement and safe and stable operation are achieved.

The method aims at solving the problems that in a wind power generation system, due to modeling errors of a prediction model in model prediction independent variable pitch control, the load of a blade root of a fan is too large, and output power is unstable. On the basis of model predictive control (MPC) independent variable pitch control, a model predictive independent variable pitch control method integrating deep deterministic policy gradient algorithm (DDPG) reinforcement learning compensation is provided, so that the modeling error of an MPC predictive model is reduced, the load reduction effect is improved, and the stability of output power is enhanced. And a DDPG compensator is designed, so that an intelligent agent continuously learns through a trial-and-error and feedback mechanism, thereby dynamically compensating a modeling error and improving the load reduction performance of MPC independent variable pitch control. According to the invention, the output power of the fan can be more stable, and the fluctuation of blade root load can be effectively reduced, so that the service life of the fan is prolonged, and the operation reliability of the system is improved.

The invention discloses an intelligent variable pitch control method, system and equipment for a wind generating set, and relates to the technical field of wind generating set control, and the method comprises the steps: synchronously collecting multi-source data in real time through a multi-source heterogeneous sensor array, constructing a dynamic load spectrum matrix, and carrying out nonlinear optimization; an optimal pitch angle sequence is generated to drive a variable pitch execution mechanism, meanwhile, the blade stress change rate is monitored in real time, and an aerodynamic load-structure response coupling factor is calculated; when the factor exceeds a safety threshold, the pitch angle command is reconstructed and the pitch angle is forcibly adjusted to a preset safety angle. The technical problems that the power generation efficiency and the structure safety are difficult to consider under the complex turbulence condition and a safety protection mechanism under the over-limit working condition is lacked in the variable pitch control of the existing wind generating set are solved, and the aim that the power generation efficiency and the structure safety are effectively improved through nonlinear optimization control and introduction of an over-limit triggered standby control path is achieved. And the technical effect of dynamic unification of power generation efficiency and structural safety in a complex turbulence environment is achieved.

The invention discloses a wind power plant equivalent frequency response modeling method considering working condition uncertainty and an equivalence method, belongs to the technical field of power system modeling and equivalence, and aims to solve the problem that no method capable of considering the working condition uncertainty of units in a wind power plant to perform equivalent aggregation on the frequency response of the whole wind power plant exists at present. According to the method, modeling is carried out on the wind speed distribution uncertainty in a wind power plant by adopting a probability method, a wind power plant wind speed distribution scene is generated based on a three-parameter Weibull distribution function, and the working condition uncertainty of each unit is represented; dividing the wind power plant into a non-frequency modulation area, a comprehensive inertia and overspeed load shedding control area and a comprehensive inertia and variable pitch control area according to the wind speed distribution and the corresponding wind speed during fan output; and based on a partitioning result, determining an equivalent influence coefficient and an equivalent control coefficient by utilizing parameters of each wind turbine generator, obtaining a wind power plant equivalent frequency response model considering working condition uncertainty by combining a wind turbine generator frequency response model, and realizing equivalence based on the model.

The invention relates to the field of wind driven generators, and particularly discloses a floating type vertical axis wind turbine multi-partition variable pitch control strategy which comprises the steps that S1, basic parameters and operating condition parameters of a unit are obtained; s2, establishing an aerodynamic model based on a double-disk multi-flow management theory and a superposition wind speed method; s3, measuring parameters through a sensor, and calculating a theoretical attack angle of the blade; s4, establishing a multi-partition pitch angle change function based on the theoretical attack angle; s5, constructing an NSGA-II multi-target optimization model, and taking maximization of an average power coefficient and minimization of a blade thrust standard deviation as targets; s6, substituting a function to obtain an optimal variable pitch control factor and an optimal pitch angle; and S7, the optimal pitch angle is converted into a variable pitch actuator instruction. The problems that an existing strategy is limited in partition, the wind direction influence is ignored, and optimal parameters for working condition adaptation are lacked are solved, the wind energy capture efficiency is improved, the load fluctuation is reduced, and the variable pitch control accuracy is improved.

The invention discloses a wind power variable pitch intelligent control method, and belongs to the field of wind power generation control. Aiming at the problems of wind speed abrupt change response lag, poor blade aging adaptation and low load control precision of existing variable pitch control, the method comprises the following steps: firstly, collecting real-time wind speed, blade strain, wind wheel rotating speed and blade historical data; predicting a short-term wind speed by using an improved ARIMA model, calculating a blade aging degree in combination with strain data, and determining a correction coefficient; then taking the predicted wind speed, the real-time strain and the correction coefficient as input, constructing a multi-target control model, and solving an optimal pitch angle through a particle swarm optimization algorithm; and finally, performing adjustment and performing real-time feedback and correction to form closed-loop control. The method can improve the variable pitch response speed, is adaptive to the full life cycle of the blade, balances the power generation efficiency and the unit safety, and is suitable for a multi-power-level wind turbine unit.

The invention provides a controller for a wind turbine having three rotor blades, the controller being for controlling activation of individual pitch control of the rotor blades. The controller is configured to receive a flap load signal, from a flap loading sensor of each of the three rotor blades, indicative of flap loading on each of the respective rotor blades. The controller is configured to determine, based on the received flap load signals, a statistical dispersion parameter of flap loading for each of the rotor blades, the statistical dispersion parameters being indicative of a wind event in a wind field in which the wind turbine operates. The controller is configured to control activation of individual pitch control based on the respective statistical dispersion parameters.

The invention provides a floating fan strong wind resistance variable pitch control method based on an online optimization algorithm, and the method comprises the steps: describing main components of a floating fan structure, and building a high-fidelity nonlinear dynamic model of a floating wind generating set; carrying out linearization and discretization processing on the high-fidelity nonlinear dynamic model of the floating wind generating set near a cut-out wind speed working point, and giving a control-oriented linearization reduced-order model; constructing an augmented closed-loop control system model based on a standard proportional integral variable pitch control algorithm; performing residual error correction on the closed-loop control system model based on a Gaussian process; calculating a most unfavorable wind speed prediction value based on an online rolling optimization prediction control algorithm; calculating a minimum rotating speed reference derating value meeting security constraints; and calculating a final blade pitch angle instruction. According to the method, on the premise that the load does not exceed the safety upper limit under the strong wind working condition, the minimum necessary derating can be achieved through the online optimization algorithm, and the power generation capacity is kept to the maximum degree.

The invention relates to the technical field of wind power generation control, in particular to a variable pitch control method and system for a wind generating set, and the method comprises the steps: firstly obtaining a real-time operation data set which comprises a set state data unit and an environment parameter data unit and is provided with a timestamp mark, and carrying out the feature fusion processing of the real-time operation data set; a combined feature set reflecting the incidence relation between the blade stress state and the wind regime change is obtained, then a pre-trained pitch angle prediction model is called to predict the pitch angle adjustment amount of the combined feature set, and target pitch angle control parameters meeting the power generation efficiency and structural load balance are determined according to the prediction result; and finally, generating a variable pitch execution instruction containing timestamp alignment based on the target pitch angle control parameter, and sending the variable pitch execution instruction to a variable pitch control system, so that the pitch angle adjustment amount can be accurately predicted, the balance between the power generation efficiency and the structural load is realized, and the operation performance and reliability of the wind generating set are improved.

The invention relates to the technical field of wind power generation control, and discloses a model prediction variable pitch control method, system and equipment based on an LPV model, and a medium, and the method comprises the steps: building a full-range nonlinear variable pitch dynamic characteristic model of a wind turbine generator; through a gap measurement theory, representative working condition points are selected from a plurality of linearization models, and a linear variable parameter fan variable pitch model is constructed by taking the wind speed as a scheduling variable; and a multi-objective function is determined, a model prediction control problem is converted into a constrained quadratic programming problem for online solving, a control input quantity is calculated, and rolling optimization is carried out. According to the method, the pitch angle change is reduced, meanwhile, the loads of the blades and the hub are further reduced, the MPC control algorithm based on the LPV model can better reduce the power fluctuation under the step wind condition, and the tower footing load is reduced.

The invention provides a bending device and method for a coiled pipe of a heat exchanger, the coiled pipe of the heat exchanger is decomposed, and the whole structure is decomposed into a body spiral part and bent parts at the two ends; a spiral bending device is designed, and the spiral part of the coiled pipe body is bent; a pipe end bending device is designed, and the pipe end part of the coiled pipe is bent; the spiral bending device comprises a pipe bending unit, an inlet and outlet angle control unit and a screw pitch control unit, the pipe bending unit is used for bending the spiral part of the coiled pipe body, the inlet and outlet angle control unit is used for controlling the forming angles of the bent parts at the two ends of the coiled pipe, and the screw pitch control unit is used for controlling the screw pitch of the spiral part of the coiled pipe body. The bending device is adopted to solve the problems that heat exchanger coiled pipes of different specifications, pipe types and lengths are difficult to form, filler in an inner cavity is difficult to clean, the manufacturing test period of a special mold is long, and the forming precision of the coiled pipes is poor.

The invention belongs to the technical field of wind power generation control, and relates to a wind turbine variable pitch control method based on load prediction feedforward compensation, which comprises the following steps: firstly, analyzing the frequency spectrum of a wind speed and a load signal, and distinguishing the current interference as periodic load interference or instantaneous load interference according to discrete peak detection, a cross-power spectrum and an energy ratio; then analyzing the lateral energy ratio and multiband energy distribution of the wind wheel shaft to determine the direction of periodic load interference or the intensity change amplitude of instantaneous load interference; generating a corresponding feed-forward compensation signal; generating a synchronous reverse sine compensation signal for periodic load interference; for the instantaneous load interference, generating a filtering compensation signal in direct proportion to the intensity change amplitude of the instantaneous load interference; and finally, fusing the feedforward signal subjected to amplitude limiting and speed limiting processing with a power feedback signal, and outputting an integrated pitch angle instruction. According to the method, through distinguishing and corresponding compensation of the load types, the active inhibition capability of the variable pitch system on the complex load is improved.

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.

The invention discloses a large-scale wind turbine generator power load cooperative fault-tolerant control method. The method comprises the following steps: establishing a unit load and rotating speed control model considering a variable pitch actuator fault; according to the load and rotating speed control model, a fault-tolerant independent variable-pitch controller composed of a centralized variable-pitch ring, an independent variable-pitch ring and a fault-tolerant compensation ring is constructed for the three-blade variable-pitch actuator; and the fault-tolerant independent variable pitch controller inputs variable pitch given instructions corresponding to the blades to the corresponding variable pitch actuators, and the variable pitch actuators implement fault-tolerant variable pitch with the variable pitch given instructions as reference, so that power and load cooperative control under the fault working condition is achieved. According to the method, the optimization effect and the application capability boundary of pneumatic unbalanced load suppression of the wind wheel of the unit can be improved under the combined action condition of multi-source disturbance and variable-pitch actuator faults, meanwhile, the high stability of power output is guaranteed, and high-performance power-load cooperative control is achieved.

The invention discloses a wind turbine generator independent variable pitch control method embedded with wind speed self-adaptive predictive control, which belongs to the field of wind power, and comprises the following steps: establishing a mathematical model of a large wind turbine generator independent variable pitch system; establishing a mathematical model of a self-adaptive model prediction controller; establishing a mathematical model of a linear processor; and based on the established adaptive model prediction controller, taking a pitch angle signal as the input of a variable pitch system, and carrying out independent variable pitch control on the wind turbine generator. The linear processor is used for limiting the upper and lower output bounds of the signals, the variable pitch signals are dispersed into a plurality of signals to be output in one communication period, and the frequency transformation and amplitude fluctuation of the signals are reduced, so that the fatigue loss of a driving mechanism is reduced, the blade load reduction effect is improved, and the real-time change characteristic of the system is coped with through the wind speed self-adaption criterion. The problem of model mismatching caused by wind speed changes is solved, the performance of the controller is improved, and the method is suitable for systems with high control performance requirements and parameter changes.

The invention provides a jet pipe array missile pitching channel jet flow opening method, device and equipment and a medium. The method comprises the steps that corresponding total thrust is calculated according to pitching control torque needed by a missile; generating a plurality of spray pipe opening combinations capable of providing total thrust according to the thrust of a single spray pipe in the spray pipe array, and taking the spray pipe opening combinations as initial candidate modes; a sequential constraint rule from the middle to the two sides is applied to each nozzle opening combination in the initial candidate modes, and candidate modes conforming to the constraint rule are obtained; calculating a jet amplification factor of the candidate mode conforming to the constraint rule in the current flight state, and evaluating the influence degree of jet interference; the candidate modes with the jet amplification factors smaller than the preset minimum threshold value of the jet amplification factors and conforming to the constraint rule are removed, and the remaining candidate modes conforming to the constraint rule serve as jet opening modes, so that the problem that the control effect is poor due to poor control torque adjustability, control coupling, insufficient spray pipe utilization rate and jet interference influence is solved.

The invention discloses a yaw variable pitch control method, device and system based on wind regime prediction. The method comprises the steps that an original sensor data stream related to wind regime prediction is pulled from a message queue; pre-processing the original sensor data stream to obtain pre-processed first data; performing data windowing on the preprocessed first data; calculating a fuzzy entropy corresponding to the first data after windowing; selecting a corresponding reference model based on the fuzzy entropy to determine a predicted wind direction and a predicted wind speed; formulating a yaw control strategy according to the predicted wind direction, and formulating a variable pitch control strategy according to the predicted wind speed; and performing yaw control according to the yaw control strategy, and performing variable pitch control according to the variable pitch control strategy. According to the method, the wind direction and the wind speed are determined through wind regime prediction, the yaw control action is assisted, the control hysteresis is reduced, the system response speed is increased, and the accuracy of yaw and variable pitch control is improved.

The invention relates to activation of a pitch controller for controlling the pitch of a rotor blade of a wind turbine. The invention includes receiving a sensor signal from at least one sensor of the wind turbine, the sensor signal being indicative of oscillatory movement of a component of the wind turbine. The invention includes determining an amplitude of the oscillating motion of the component based on the received sensor signal, and determining a rate of change of the amplitude of the oscillating motion based on the determined amplitude. The invention includes controlling the activation of the pitch controller based on the determined rate of change of the amplitude of the oscillating motion.

The disclosure provides a pitch angle control method and device of a variable pitch wind turbine, and relates to the technical field of pitch control, which comprises the following steps: in response to detecting that the wind speed reaches a first wind speed, the pitch angle is controlled to keep the rotating speed of the wind turbine within a preset range; in response to determining that the wind turbine has been connected to the grid and detecting that the wind turbine is running at a first rotating speed, based on a preset first control strategy, the wind turbine is controlled to run at variable speed according to the current wind speed, so that the wind turbine reaches an optimal tip speed ratio; in response to determining that the output power of the wind turbine does not reach a rated output power, the pitch angle is controlled to control the wind turbine to run at the first rotating speed; and in response to determining that the wind turbine reaches the rated output power and the wind speed increases, the pitch angle is increased. Thus, the wind energy captured by the wind turbine can be controlled by adjusting the pitch angle, so as to improve the efficiency of the wind turbine and protect the wind turbine.

The present invention describes a detachable connection between a pitch control unit arm (5) and a pitch angle piece (8) of a blade holder (7) in a tail rotor head (3) of a tail rotor (1) of a rotary wing aircraft, said detachable connection comprising a pin connecting said pitch angle piece (8) attached to the blade holder (7) with said pitch control unit arm (5) of a pitch control unit (4), thereby reducing material wear and shortening the maintenance cycle. This is achieved because said pin is designed as a sliding pin (9) protruding between the pitch angle piece (8) and the pitch control unit arm (5), which in its length direction passes through a spherical bearing in the form of a ball (6) with a central ball through hole (61), wherein the ball (6) and the part of the sliding pin (9) are surrounded by an outer ring (60) of the spherical bearing, thus allowing a sliding and pivoting movement of the sliding pin (9) inside the spherical bearing.

The invention discloses a fan variable pitch control method and system, and relates to the technical field of wind power generation. Obtaining the operation power and the operation time of each fan in the target area to obtain an operation data set, and clustering the operation data to obtain operation abnormal parameters; environment data of the target area are obtained, and fan change parameters are obtained in combination with the operation abnormal parameters; and according to the fan change parameters, wear judgment is conducted on the target fan, and if wear of the target fan is abnormal, variable pitch control is conducted. Clustering analysis is carried out on the operation data, operation abnormal parameters are rapidly recognized, preliminary diagnosis is provided for the health state of the draught fan, the change parameters of the draught fan are calculated in combination with environment data, abnormal judgment is more accurate and is close to the actual operation environment, abrasion judgment is carried out based on the change parameters of the draught fan, and variable pitch control is carried out to optimize the operation state of the draught fan. Fan faults can be effectively prevented, the service life of equipment is prolonged, the fan operation efficiency can be optimized, and the overall performance and reliability of a wind power plant are improved.

The invention provides a high-power variable pitch system adaptive to an SL1500 wind turbine generator and a temperature control method, and is applied to the technical field of data processing. According to the method, the problem that the temperature of the variable-pitch motor of the SL1500 wind turbine generator is high is solved, unit operation data, variable-pitch system influence factors and abnormal state information of the motor are obtained firstly, and rated torque and operation temperature basic data of the variable-pitch motor are obtained through preprocessing; the temperature control improvement probability of the high-power variable-pitch system is calculated by dynamically fusing engine reinforced blade bearing wear and lubrication state weights and combining space-time correlation analysis and a regression model, and temperature anomaly feature information is generated by comparing data before and after technical improvement. The method comprises the following steps of: obtaining a multi-modal feature, processing the multi-modal feature to obtain an overload heating identification result, generating a risk influence factor in combination with a multi-task decision matrix and a technical improvement key index, and finally outputting a dynamic early warning result of over-high motor temperature by means of a time-space correlation early warning engine and a multi-target decision, thereby realizing problem solving and risk management and control.

The present application belongs to the technical field of wind turbine control, and particularly relates to a reliability verification method and system for improving the robustness of independent variable pitch control of a wind turbine, which starts from the generation source of blade root flap load, and realizes input signal accuracy guarantee through three key verifications. The accuracy of the measurement signal output by the blade root flap load measurement system is judged, the accuracy of the calibration coefficient is verified, and the accuracy of the blade root flap load data is verified. When any one of the three verifications is determined to be abnormal, the use of independent variable pitch control technology is stopped, and the corresponding control mode is switched to. The present application effectively avoids equipment damage, blade tower scanning, unit tower falling and other accidents caused by incorrect blade root flap load input, improves the robustness of the independent variable pitch control system and the operation safety of the unit, maintains the power generation capacity, and improves the overall reliability and availability of the system.

The invention discloses a wind turbine generator composite adaptive specified performance variable pitch control method, which comprises the following steps: step 1, establishing a dynamic model of a wind turbine generator, including a pneumatic power equation for capturing wind energy of the wind turbine generator, a transmission system dynamic equation and a wind turbine generator simplified model finally used for control; 2, constructing a finite time specified performance function and a conversion error, and converting a problem with error constraint into an unconstrained problem; and step 3, combining the filtering error, and designing a composite adaptive specified performance variable pitch controller. The finite time stipulated performance control method is adopted, the problem that the traditional asymptotic control convergence speed is low is solved, the convergence time and the steady-state precision can be preset, and the dynamic response performance and the power generation efficiency of the system are remarkably improved.

A method and device for controlling a wind turbine and a storage medium. The method includes obtaining a mapping of the wind turbine; determining a starting power for starting an advance pitch control based on the mapping of the wind turbine; in response to a rotation speed of the wind turbine reaching a first rated rotation speed and a power of the wind turbine reaching the starting power, increasing a motor torque and increasing a pitch angle to make the hub thrust of the turbine change by following the limit boundary of hub thrust; and increasing the pitch angle to maintain the rotation speed of the wind turbine at the first rated rotation speed until a target wind speed is reached, in response to the power of the wind turbine being increased to the exceeded power.

The invention provides a method for controlling a pitch angle of a rotor blade (6) of a wind turbine (1) with a hydraulic pitch actuator system (200). The method comprises a step of receiving a current pitch signal of the rotor blade (6) and a pitch reference signal indicating a desired pitch angle for the rotor blade (6), a step of receiving an operating parameter signal (63) from the hydraulic pitch actuator system (200), a step of generating a feedback signal based on the operating parameter signal (63), a step of using a gain scheduler (150) to provide a variable feedback gain, a step of generating a damping signal based on the feedback signal and the variable feedback gain, a step of generating a pitch control command based on a difference between the current pitch signal and the pitch reference signal, and on the damping signal, and a step of sending the pitch control command to the hydraulic pitch actuator system (200).

The application relates to a direct-current variable-pitch motor control system, which is characterized by including a closed-loop control method of four speed feedback units in two speed feedback signal modes, four speed feedback modes covering all speed feedback modes of a variable-pitch system and capable of being flexibly and simply switched; in addition, the application also includes an open-loop control method for emergency treatment in the case that a motor speed feedback unit of the direct-current variable-pitch motor is faulty or signal loss occurs, the direct-current variable-pitch motor can track the speed signal before the emergency and a current control signal, so that the variable-pitch motor is ensured to stably operate and the wind driven generator is ensured to be safe; the application also proposes a steady-state control method of open-loop and closed-loop units and a switching process, which prevents motor current from suddenly jumping and prevents motor speed from suddenly changing. The design of the application is suitable for variable speed feedback modes of the direct-current motor used for variable-pitch control, and ensures that the wind driven generator set is reliable and safe.

This invention provides an automatic pitch calibration system for wind turbine blades. The system consists of a proximity switch installed at a preset mark at a mechanical 49° position at the blade root, with its centerline coinciding with the mark; a limit stop fixed at the blade root and moving with the blade through the proximity switch's sensing area; a pulse signal triggering module that generates a calibration pulse signal when the limit stop enters the sensing area; and an angle forced correction module that forcibly adjusts the rotary encoder angle in the pitch control system to the preset 49° mechanical position in response to the calibration pulse signal. The closest gap between the proximity switch and the limit stop is precisely set to 3mm, ensuring triggering accuracy while preventing mechanical collisions. The system triggers a calibration pulse signal once each during blade opening and closing to correct the rotary encoder angle in real time. The 49° mechanical position is used as an intermediate calibration point to eliminate accumulated angle errors. Furthermore, the system is integrated into the pitch control system, eliminating the need for an additional control unit.

The wind turbine vibration suppression method and the wind turbine provided by the present disclosure solve the problem that the suppression effect cannot be ensured without affecting the power generation amount, and can realize the suppression of the vibration of the wind turbine through the pitch control, effectively suppress the vibration of the wind turbine without affecting the power generation amount, and achieve a better suppression effect.