Lubricating method, device, equipment, storage medium and product of wind power generation group

By acquiring multi-source data to determine the target operating conditions of wind turbine generators and formulating corresponding oil supply strategies, the problem of lack of comprehensive analysis in the lubrication system of wind turbine generators has been solved, achieving precise matching of lubricating oil conditions and safe and reliable operation of the equipment.

CN122280799APending Publication Date: 2026-06-26HUANENG JILIN POWER GENERATION CO LTD CHANGCHUN THERMAL POWER PLANT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-01
Publication Date
2026-06-26

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Abstract

This application discloses a lubrication method, apparatus, equipment, storage medium, and product for wind power generators, relating to the field of wind power generation technology. The lubrication method for wind power generators includes: acquiring multi-source data; determining the target operating condition of the wind power generator based on the multi-source data, wherein the multi-source data includes oil temperature data, oil level data, oil pressure data, and load torque data; determining the oil supply strategy corresponding to the target operating condition; and performing lubrication of the wind power generator based on the oil supply strategy. This application identifies the target operating condition of the wind power generator based on multi-source data such as oil temperature data, oil level data, oil pressure data, and load torque data, and performs lubrication of the wind power generator according to the oil supply strategy corresponding to the target operating condition, enabling a comprehensive judgment of the lubricating oil condition.
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Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a lubrication method, apparatus, equipment, storage medium and product for wind power generators. Background Technology

[0002] In related technologies, the lubrication systems of wind turbine generator sets (especially key components such as main bearings and gearboxes) often adopt timed and quantitative oil supply or simple control strategies based on a single temperature threshold, lacking a comprehensive assessment of the lubricating oil condition. Summary of the Invention

[0003] The main objective of this application is to provide a lubrication method, apparatus, equipment, storage medium, and product for wind power generators, aiming to solve the technical problem that the use of timed and quantitative oil supply or simple control strategies based on a single temperature threshold lacks a comprehensive assessment of the lubricating oil condition.

[0004] To achieve the above objectives, this application proposes a lubrication method for a wind turbine generator set, the lubrication method comprising: Acquire multi-source data, and based on the multi-source data, determine the target operating condition of the wind power generation unit, wherein the multi-source data includes oil temperature data, oil level data, oil pressure data, and load torque data; Determine the oil supply strategy corresponding to the target operating condition, and perform lubrication of the wind turbine generator based on the oil supply strategy.

[0005] In one embodiment, the basic operating condition includes at least one of a high-load operating condition and a congestion operating condition, and the step of determining the target operating condition of the wind power generation unit based on the multi-source data includes: Based on the oil temperature data and the load torque data, determine whether the wind power generation unit is under the high load condition; And / or, based on the oil pressure data, determine whether the wind turbine is in the blockage condition.

[0006] In one embodiment, the high-load operating condition includes either a low-temperature high-load operating condition or a high-temperature high-load operating condition, and the step of determining whether the wind power generator is under the high-load operating condition based on the oil temperature data and the load torque data includes: Determine the oil viscosity and temperature rise rate corresponding to the oil temperature data; calculate the cold viscous drag torque based on the oil viscosity; and determine whether the wind power generator is under the low temperature and high load condition based on the oil temperature data, the cold viscous drag torque, and the temperature rise rate. And / or, based on the load torque data, calculate the frictional heat generation power, based on the oil viscosity corresponding to the oil temperature data, calculate the oil film thickness, and based on the frictional heat generation power and the oil film thickness, determine whether the wind power generator is under the low temperature and high load condition.

[0007] In one embodiment, the step of determining whether the wind turbine is in the blockage condition based on the oil pressure data includes: Obtain the theoretical pressure value, and calculate the pressure component based on the oil pressure data and the theoretical pressure value, wherein the theoretical pressure value is determined based on the oil viscosity corresponding to the oil temperature data; If the pressure component is greater than the threshold, the pressure change rate within a preset number of measurement cycles based on the pressure component is obtained, and based on the pressure change rate, it is determined whether the wind power generation unit is in the blockage condition.

[0008] In one embodiment, the step of acquiring multi-source data includes, prior to: Acquire initial oil level data, oil temperature data, oil tank size data, and oil tank attitude data, wherein the oil tank attitude data includes sway angle and sway acceleration; Based on the oil temperature data, the current oil viscosity is determined. Based on the oil viscosity and the oil tank size data, the oil tank sway damping coefficient and inertia correction coefficient are mapped to obtain the oil tank sway damping coefficient and inertia correction coefficient. Based on the tank sloshing damping coefficient, the inertia correction coefficient, and the tank attitude data, the initial oil level data is compensated to obtain the oil level data.

[0009] In one embodiment, the step of determining the fuel supply strategy corresponding to the target operating condition includes: If the target operating condition is the low temperature and high load operating condition, the lubrication pump is controlled to run at a preset frequency for a preset number of times within a preset first time interval, and at a preset first speed within a preset second time interval, wherein the preset second time interval is determined based on the oil temperature data, and the preset first speed is less than the rated speed; And / or, if the target operating condition is the high temperature and high load operating condition, control the lubrication pump to operate at a preset second speed, wherein the preset second speed is greater than the rated speed. And / or, if the target operating condition is the blockage operating condition, the lubrication pump is controlled to rotate in a preset first direction within a preset third time period, and stop rotating within a preset fourth time interval, and rotate in a preset second direction within a preset fifth time interval, wherein the time span of the preset third time period is greater than that of the preset fourth time interval and the preset fifth time interval.

[0010] Furthermore, to achieve the above objectives, this application also proposes a lubrication device for a wind power generator, the lubrication device comprising: The acquisition module is used to acquire multi-source data and determine the target operating condition of the wind power generation unit based on the multi-source data. The multi-source data includes oil temperature data, oil level data, oil pressure data, and load torque data. The lubrication module is used to determine the oil supply strategy corresponding to the target operating condition, and to perform lubrication of the wind turbine generator based on the oil supply strategy.

[0011] In addition, to achieve the above objectives, this application also proposes a lubrication device for a wind power generator, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the lubrication method for the wind power generator as described above.

[0012] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the lubrication method for wind power generation units as described above.

[0013] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the lubrication method for wind power generators as described above.

[0014] One or more technical solutions proposed in this application have at least the following technical effects: Compared to related technologies, where lubrication systems for wind turbine generators (especially key components such as main bearings and gearboxes) often employ timed and metered oil supply or simple control strategies based on a single temperature threshold, lacking comprehensive assessment of lubricant condition, this application acquires multi-source data. Based on this data, it determines the target operating condition of the wind turbine generator, including oil temperature, oil level, oil pressure, and load torque data. It then determines the corresponding oil supply strategy for the target operating condition and performs lubrication based on this strategy. This application identifies the target operating condition of the wind turbine generator based on multi-source data such as oil temperature, oil level, oil pressure, and load torque, and performs lubrication according to the corresponding oil supply strategy, thus achieving a comprehensive assessment of the lubricant condition. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic flowchart is provided for Embodiment 1 of the lubrication method for wind power generators in this application; Figure 2 A schematic flowchart of the second embodiment of the lubrication method for wind power generators in this application; Figure 3 This is a schematic diagram of the module structure of the lubrication device for a wind turbine generator according to an embodiment of this application; Figure 4 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the lubrication method of the wind power generator in the embodiments of this application.

[0018] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0020] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0021] The main solution of this application embodiment is: to acquire multi-source data, and based on the multi-source data, to determine the target operating condition of the wind power generator, wherein the multi-source data includes oil temperature data, oil level data, oil pressure data and load torque data; to determine the oil supply strategy corresponding to the target operating condition, and to perform lubrication of the wind power generator based on the oil supply strategy.

[0022] In related technologies, the lubrication systems of wind turbine generator sets (especially key components such as main bearings and gearboxes) often adopt timed and quantitative oil supply or simple control strategies based on a single temperature threshold, lacking a comprehensive assessment of the lubricating oil condition.

[0023] This application identifies the target operating condition of the wind turbine generator based on multi-source data such as oil temperature, oil level, oil pressure, and load torque, and performs lubrication of the wind turbine generator according to the corresponding oil supply strategy, thus enabling a comprehensive judgment of the lubricating oil condition.

[0024] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or lubrication device capable of performing the above functions. The following description uses a lubrication device as an example to illustrate this embodiment and the subsequent embodiments.

[0025] Based on this, the embodiments of this application provide a lubrication method for a wind power generator, referring to... Figure 1 , Figure 1 This is a schematic flowchart of the first embodiment of the lubrication method for wind power generation in this application.

[0026] In this embodiment, the lubrication method of the wind power generator includes steps S10~S20: Step S10: Obtain multi-source data, and determine the target operating condition of the wind power generation unit based on the multi-source data. The multi-source data includes oil temperature data, oil level data, oil pressure data, and load torque data. It should be noted that the execution subject in this embodiment is a lubrication device. This lubrication device is equipped with a lubrication pump to deliver lubricating oil to the components requiring lubrication. Oil temperature data refers to the real-time temperature value of the lubricating oil in the lubrication system, collected by a temperature sensor, reflecting the viscosity characteristics of the lubricating oil. Oil level data is the real-time value of the oil level in the lubricating oil tank, collected by a level sensor. Oil pressure data refers to the fluid pressure value at the lubrication pipeline or pump outlet, collected by a pressure sensor, reflecting the flow resistance and delivery status of the lubricating oil in the pipeline. Load torque data refers to the value reflecting the mechanical load borne by the wind turbine generator's drivetrain (such as the main shaft and gearbox), usually collected directly by a torque sensor or calculated from the generator power and speed. The lubrication device first collects the oil temperature data, oil level data, oil pressure data, and load torque data of the wind turbine generator in real time through a sensor network, constructing a multi-source dataset reflecting the current operating status of the unit; then, based on the above multi-source data, it determines the current target operating condition of the wind turbine generator.

[0027] Step S20: Determine the oil supply strategy corresponding to the target operating condition, and lubricate the wind power generator based on the oil supply strategy.

[0028] Understandably, after determining the target operating condition of the wind turbine generator set, the lubrication device queries the control algorithm corresponding to the target operating condition, determines the oil supply strategy uniquely corresponding to the target operating condition, and then controls the operating status of the lubrication pump and auxiliary cooling equipment based on the specific parameter instructions in the oil supply strategy to perform the lubrication operation of the wind turbine generator set to the lubrication points of the wind turbine generator set.

[0029] In one feasible implementation, step S10 includes: Based on the oil temperature data and the load torque data, determine whether the wind power generation unit is under the high load condition; It should be noted that high-load operating conditions refer to the operating state of wind turbine generators under significant mechanical loads and accompanied by specific temperature characteristics. The lubrication system first determines whether the wind turbine generator is under high-load operating conditions based on real-time collected oil temperature and load torque data.

[0030] And / or, based on the oil pressure data, determine whether the wind turbine is in the blockage condition.

[0031] Understandably, a blockage condition refers to a situation in the lubrication system of a wind turbine generator where, due to factors such as impurity buildup, narrow oil passages, or dried-out grease, the flow of lubricating oil is obstructed, resulting in abnormally high or fluctuating oil pressure, failing to meet normal lubrication requirements. The lubrication device determines whether the wind turbine generator is in a blockage condition based on the oil pressure data, thereby promptly identifying the risk of blockage in the lubrication pipeline.

[0032] In one feasible implementation, the step of determining whether the wind turbine generator set is under the high-load condition based on the oil temperature data and the load torque data includes: Determine the oil viscosity and temperature rise rate corresponding to the oil temperature data; calculate the cold viscous drag torque based on the oil viscosity; and determine whether the wind power generator is under the low temperature and high load condition based on the oil temperature data, the cold viscous drag torque, and the temperature rise rate. It should be noted that oil viscosity is a physical quantity representing the magnitude of internal frictional resistance generated when the lubricating oil flows at the temperature corresponding to the oil temperature data, reflecting the consistency of the lubricating oil in a low-temperature environment. Temperature rise rate refers to the change in oil temperature data per unit time, reflecting how quickly the lubrication system or mechanical components generate heat in a short period. Under low-temperature, high-load conditions, due to the poor fluidity of the oil, frictional heat cannot be carried away in time, causing a rapid rise in local temperature. Therefore, it is an important indicator for judging whether there is abnormal frictional heat or thermal shock. Cold-state viscous resistance torque refers to the additional resistance torque generated by gears, bearings, and other transmission components when agitating the lubricating oil during the low-temperature start-up or low-speed operation phase of the wind turbine generator set, due to the increased oil viscosity. This torque reflects the degree to which the lubricating oil hinders mechanical operation at low temperatures. Low-temperature, high-load operating conditions refer to the operating state of the wind turbine generator set under low ambient temperature (leading to high oil viscosity), while simultaneously bearing a large mechanical load or starting resistance, accompanied by specific temperature rise characteristics. Under these conditions, the lubrication system faces the dual contradiction of "thick oil that is difficult to flow" and "high load demand."

[0033] Understandably, the lubrication system first uses real-time collected oil temperature data to query pre-stored viscosity-temperature characteristic curves or formulas to determine the oil viscosity at the current temperature. It then calculates the cold-state viscous resistance torque caused by this viscosity in conjunction with the unit's rotational speed, while simultaneously monitoring and calculating the current temperature rise rate. Subsequently, it comprehensively analyzes the oil temperature data (to determine if it is below the low-temperature threshold), the cold-state viscous resistance torque (to determine if it exceeds the safe range of starting resistance), and the temperature rise rate (to determine if there is abnormal frictional heat). If the oil temperature data shows a low temperature, and the cold-state viscous resistance torque is large, or the temperature rise rate is abnormal, then the wind turbine generator set is determined to be operating under low-temperature, high-load conditions.

[0034] And / or, based on the load torque data, calculate the frictional heat generation power, based on the oil viscosity corresponding to the oil temperature data, calculate the oil film thickness, and based on the frictional heat generation power and the oil film thickness, determine whether the wind power generator is under the low temperature and high load condition.

[0035] It should be noted that frictional heat generation power refers to the rate at which mechanical energy is converted into heat energy due to friction between mechanical components (such as gears and bearings) during the operation of a wind turbine generator. Oil film thickness refers to the thickness of the insulating layer formed by lubricating oil between the surfaces of the friction pairs. This thickness is calculated based on the oil viscosity corresponding to the oil temperature data and reflects the lubricating oil's ability to maintain hydrodynamic lubrication and isolate metal-to-metal contact at a specific temperature. The lubrication system first calculates the current frictional heat generation power based on real-time collected load torque data and the generator speed to quantify the heat intensity generated by the mechanical load. Simultaneously, it queries the corresponding oil viscosity based on the oil temperature data and calculates the oil film thickness under the current operating conditions based on this viscosity and a tribological model to assess the lubricating oil's isolation and protection capabilities. Subsequently, the frictional heat generation power is compared with a preset heat load threshold, and it is determined whether the oil film thickness is lower than a preset safe film thickness threshold. If the frictional heat generation power exceeds the heat load threshold and the oil film thickness is lower than the safe film thickness threshold, the wind turbine generator is determined to be operating under low-temperature, high-load conditions.

[0036] In one feasible implementation, the step of determining whether the wind turbine is in the blockage condition based on the oil pressure data includes: Obtain the theoretical pressure value, and calculate the pressure component based on the oil pressure data and the theoretical pressure value, wherein the theoretical pressure value is determined based on the oil viscosity corresponding to the oil temperature data; It is understandable that the theoretical pressure value refers to the fluid pressure value determined solely by the viscosity of the lubricating oil at the current oil temperature and the operating parameters of the pump, under ideal conditions where the physical structure of the lubrication pipeline is unobstructed. This value represents the basic pressure generated by the viscous resistance caused by temperature and does not include the additional resistance caused by pipeline blockage. The pressure component refers to the pressure difference remaining after removing the theoretical pressure value caused by temperature factors from the real-time collected oil pressure data, reflecting the degree of physical blockage in the pipeline. This component is used to characterize the flow resistance caused purely by impurity accumulation or grease drying. The lubrication device first determines the current oil viscosity based on the real-time collected oil temperature data and calculates the theoretical pressure value under unobstructed pipeline conditions, combined with the operating status of the lubrication pump. Subsequently, it acquires the oil pressure data monitored in real time by the sensor, subtracts the theoretical pressure value from the oil pressure data, and calculates the pressure component. Thus, the measured total pressure is decomposed into two parts: "viscous pressure caused by temperature" and "blockage pressure caused by blockage," accurately extracting the characteristic values ​​reflecting the actual degree of pipeline blockage and eliminating temperature interference for subsequent accurate judgment of blockage conditions.

[0037] If the pressure component is greater than the threshold, the pressure change rate within a preset number of measurement cycles based on the pressure component is obtained, and based on the pressure change rate, it is determined whether the wind power generation unit is in the blockage condition.

[0038] It should be noted that the pressure change rate refers to the rate or trend of change of the pressure component over time within a preset number of measurement cycles. The measurement cycle refers to the time unit or sampling interval at which the system collects and calculates the pressure component. After determining that the pressure component is greater than a preset threshold, the lubrication device further acquires the numerical sequence of the pressure component within a preset number of measurement cycles and calculates the pressure change rate. Subsequently, the pressure change rate is compared with a preset change rate threshold. If the pressure change rate shows a continuous increase or remains at a high level with a high slope, the wind turbine generator is determined to be in a blocked condition. Thus, by introducing trend analysis in the time dimension, pressure component anomalies caused by sensor noise or instantaneous oil fluctuations are eliminated, ensuring the accuracy and reliability of the blockage fault determination.

[0039] In one feasible implementation, the steps prior to acquiring multi-source data include: Acquire initial oil level data, oil temperature data, oil tank size data, and oil tank attitude data, wherein the oil tank attitude data includes sway angle and sway acceleration; Understandably, initial oil level data refers to the original height of the lubricating oil level in the tank, directly collected by a level sensor under static or standard reference conditions. Tank size data refers to a set of parameters describing the geometry and volume characteristics of the lubricating oil tank, including its length, width, height, and internal baffle distribution. This data is used to establish a geometric mapping between the liquid level and the tank volume. Tank attitude data includes the sway angle θ(t) and sway acceleration a(t) of the wind turbine tower. The lubrication system first acquires initial oil level data reflecting the original liquid level height, oil temperature data reflecting the physical state of the oil, tank size data describing the tank's geometry, and tank attitude data reflecting the tank's dynamic motion (specifically including the sway angle reflecting the degree of tilt and the sway acceleration reflecting dynamic fluctuations) through a sensor network. This constructs a complete dataset containing both static geometric and dynamic motion information, providing comprehensive data support for subsequent multi-dimensional correction of the initial oil level data using the temperature expansion coefficient and attitude tilt model to obtain accurate actual oil volume.

[0040] Based on the oil temperature data, the current oil viscosity is determined. Based on the oil viscosity and the oil tank size data, the oil tank sway damping coefficient and inertia correction coefficient are mapped to obtain the oil tank sway damping coefficient and inertia correction coefficient. It should be noted that the oil tank sloshing damping coefficient is a parameter characterizing the rate at which energy is dissipated when the lubricating oil sloshes within the tank. This coefficient is positively correlated with the oil viscosity, reflecting the liquid's ability to suppress surface fluctuations due to its own viscous friction. The inertia correction coefficient is a mathematical factor used to correct for level measurement errors caused by oil tank sloshing. This coefficient is determined based on oil tank dimensions (such as aspect ratio and liquid depth) and the sloshing characteristics of the liquid, and is used to restore the dynamic liquid level measured by the sensor to an equivalent static liquid level. The lubrication system first determines the oil viscosity under the current operating conditions by querying the viscosity-temperature characteristic curve or formula based on the real-time collected oil temperature data. Then, it inputs the oil viscosity and pre-stored tank size data (such as the tank's length, width, depth, and other geometric parameters) into a preset fluid dynamics mapping model or lookup table. Through this model, it analyzes the coupling effect of liquid viscosity and tank geometry on fluid motion, calculates and maps the current tank sloshing damping coefficient and inertia correction coefficient. Thus, the abstract physical parameters are transformed into specific coefficients that can be used for algorithm correction, providing key dynamic correction parameters for subsequent accurate calculation of the actual oil volume in the tank.

[0041] Based on the tank sloshing damping coefficient, the inertia correction coefficient, and the tank attitude data, the initial oil level data is compensated to obtain the oil level data.

[0042] Understandably, the lubrication system first acquires the tank sloshing damping coefficient, which reflects the liquid sloshing attenuation characteristics; the inertia correction coefficient, which reflects the liquid level fluctuation amplitude; and the tank attitude data (including sloshing angle and acceleration), which reflects the real-time motion state of the tank. Then, a compensation algorithm model is constructed, using the tank attitude data to determine the geometric tilt and dynamic fluctuation direction of the liquid level. The fluctuation amplitude is attenuated and corrected using the tank sloshing damping coefficient, and the inertia correction coefficient is used to correct the inertial deviation of the liquid level caused by acceleration. Finally, the above corrections are applied to the initial oil level data to calculate high-precision oil level data. Thus, a precise conversion from the disturbed original signal to the true liquid level value is achieved, providing a reliable basis for determining whether the unit is short of oil.

[0043] In strong winds, wind turbines sway violently. Traditional methods may lead to false alarms of "low oil" and shutdowns due to the momentary exposure of the oil level sensor to the oil surface. This new method considers the impact of oil viscosity on sway damping. The compensation model maintains high accuracy under both low winter temperatures (thick oil) and high summer temperatures (thin oil), avoiding over- or under-addition of grease due to seasonal changes. Specifically, tank attitude data provides information on "interference sources" such as tilt and acceleration, while the tank sway damping coefficient and inertia correction coefficient provide the "response characteristics" of the liquid to this interference. By combining these three factors, the device can accurately simulate the actual sway pattern of the liquid surface within the tank and isolate these spurious sway components from the initial oil level data. Consequently, the obtained oil level data accurately reflects the actual oil volume in the tank, avoiding false alarms of "false low oil level" (leading to unnecessary shutdowns) or misjudgments of "false high oil level" (leading to oil spill risks) caused by liquid surface swaying. This significantly improves the robustness and safety of lubrication system condition monitoring.

[0044] Specifically, a high-precision IMU (Inertial Measurement Unit) is installed at the yaw bearing of the wind turbine to collect the sway angle θ(t) and sway acceleration a(t) of the wind turbine tower at a frequency of 100Hz. At the same time, the liquid level sensor of the lubrication system collects the original liquid level L at a frequency of 50Hz. raw And establish a differential equation model that includes the inertial hysteresis effect of oil:

[0045] in, This is the oil sloshing damping coefficient. This is the inertia correction factor.

[0046] In this embodiment, the corresponding oil supply strategy is dynamically determined and executed based on the target operating condition determined in the preceding steps, rather than using a fixed single lubrication mode. This solves the technical problem of poor lubrication performance in wind turbine generators under wide temperature ranges and variable load environments. Specifically, when the operating condition is determined to be low temperature, a targeted pulse or preheating oil supply strategy overcomes the high viscosity resistance of cold oil, preventing pipeline blockage and ensuring oil film establishment. When the operating condition is determined to be high temperature, a high-flow-rate heat dissipation oil supply strategy promptly removes frictional heat, preventing excessive oil temperature from causing oil oxidation or oil film rupture. When the operating condition is determined to be blocked, a special unblocking strategy (such as forward and reverse pulses) automatically clears pipeline obstructions. This differentiated wind turbine generator lubrication method based on target operating conditions achieves precise matching between lubrication supply and actual demand, ensuring safe equipment operation while minimizing lubricant waste and energy consumption.

[0047] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 2 Step S20, the lubrication method for the wind power generator further includes steps S01~S03: Step S01: If the target working condition is the low temperature and high load working condition, control the lubrication pump to run at a preset frequency for a preset number of times within a preset first time interval, and to run at a preset first speed within a preset second time interval, wherein the preset second time interval is determined based on the oil temperature data, and the preset first speed is less than the rated speed. It should be noted that the preset first time interval refers to a short time window set at the beginning of the lubrication control cycle, which can be set to 35 seconds. The preset frequency is 2 seconds of operation every 5 seconds. The preset number of times can be set to five. The preset first speed refers to the rotational speed of the lubrication pump during the preset second time interval. This speed is set to be less than the rated speed, which can be set to 30% of the rated speed. This is designed to limit the instantaneous oil supply flow and prevent the pipeline pressure from instantly exceeding the safety threshold (pressure buildup) due to excessively high oil viscosity, while allowing the oil to flow slowly to establish an initial oil film. The preset second time interval refers to the continuous operating time period immediately following the preset first time interval. The length of this interval is not a fixed value, but is dynamically adjusted according to oil temperature data (e.g., the lower the oil temperature, the longer the interval), used for gentle and continuous oil supply at low speeds. The lubrication system first controls the lubrication pump to enter a preset first time interval. During this period, the lubrication pump runs for 2 seconds every 5 seconds and performs 5 pulse-type start-stop operations. The generated pulse pressure waves disturb the high-viscosity lubricating oil in the oil tank and pipeline, overcoming static viscous resistance. Subsequently, after the pulse action is completed, the lubrication pump is controlled to enter a preset second time interval. The length of this time interval is determined based on the current oil temperature data (e.g., the lower the temperature, the longer the duration). Within the preset second time interval, the lubrication pump is controlled to run continuously at a preset first speed, which is lower than the rated speed of the lubrication pump, to achieve a gentle oil supply with low flow and low pressure. Thus, through the combined strategy of "pulse disturbance first, followed by slow low-speed supply," the problem of poor lubricating oil flow at low temperatures is solved, ensuring the safety and effectiveness of the lubrication system during the cold start phase.

[0048] Step S02, and / or, if the target operating condition is the high temperature and high load operating condition, control the lubrication pump to run at a preset second speed, wherein the preset second speed is greater than the rated speed; Understandably, the preset second speed refers to a specific operating speed set for the lubrication pump under high-temperature and high-load conditions. This speed is set to be higher than the rated speed (i.e., overspeed operation mode), aiming to increase the lubricating oil flow rate per unit time by increasing the pumping frequency, in order to meet the higher demands for heat dissipation and lubrication film strength under high-temperature environments. After determining that the target operating condition is a high-temperature and high-load condition, the lubrication device identifies that the current unit is under heavy mechanical load and high oil temperature, requiring enhanced heat dissipation and oil film support. Subsequently, it controls the lubrication pump to deviate from the normal operating mode and switch to the preset second speed for operation. The preset second speed is set to be higher than the rated speed, thereby putting the lubrication pump in an overspeed operation state. As a result, more lubricating oil is delivered to the lubrication points per unit time, carrying away the heat generated by the friction pairs through high-flow circulation, and maintaining oil film pressure with high flow rate, ensuring the safe operation of the unit in a high-temperature and low-viscosity environment.

[0049] Step S03, and / or, if the target working condition is the blockage working condition, control the lubrication pump to rotate in a preset first direction within a preset third time period, stop rotating within a preset fourth time interval, and rotate in a preset second direction within a preset fifth time interval, wherein the time span of the preset third time period is greater than that of the preset fourth time interval and the preset fifth time interval.

[0050] It should be noted that the preset third time interval refers to the duration of the lubrication pump's initial forward (or main unblocking direction) pressurization action after a blockage is detected, which can be set to 5 seconds. The preset fourth time interval refers to a short pause or pressure relief window between the forward pressurization and reverse actions, which can be set to 2 seconds. During this interval, the lubrication pump stops rotating to release residual high pressure in the pipeline, prevent pressure buildup that could lead to pipe bursting, and provide a buffer space for oil backflow or air bubble removal. The preset fifth time interval refers to the duration of the lubrication pump's reverse (or pulse release direction) rotation, which can be set to 3 seconds. This interval is usually short and aims to generate instantaneous negative pressure or reverse impact force to loosen the blockage that was just pushed out by the forward pressure. The preset first direction rotation refers to the forward rotation of the lubrication pump motor (usually corresponding to high-pressure oil injection). The preset second direction refers to the reverse rotation of the lubrication pump motor (or a specific pulse direction). By changing the direction of rotation, reciprocating pressure fluctuations (i.e., the "breathing effect") are formed in the pipeline, using shear force to break up the blockage. After determining that the target working condition is a blockage, the lubrication device initiates an automatic unblocking program: First, it controls the lubrication pump to rotate in a preset first direction during a preset third time period, continuously applying high-pressure thrust to the pipeline in an attempt to push the blockage point; then, it controls the lubrication pump to stop rotating during a preset fourth time interval, allowing the pipeline pressure to be released and buffered; immediately afterward, it controls the lubrication pump to rotate in a preset second direction during a preset fifth time interval, generating a reverse impact force or negative pressure suction; wherein, the time span of the preset third time period is significantly longer than that of the preset fourth and fifth time intervals, forming an asymmetric pulse sequence of "long-term positive pushing, short-term pause, and short-term reverse impact"; thus, by utilizing this mechanical mechanism that combines "hammering" and "pulling back", it effectively breaks up and unblocks stubborn blockages in the pipeline.

[0051] Optionally, the lubrication device controls the lubrication pump to operate at a constant speed during a preset third time period. Instead, it first operates at a first gradient speed in the first sub-interval, and then increases to a second gradient speed in the second sub-interval, where the second gradient speed is greater than the first gradient speed, and both are determined based on the oil viscosity. Through this "trial and error" approach, the pipeline pressure is gradually built up. During a preset fourth time period, the lubrication pump not only stops rotating but also controls the pressure relief valve to open, using the elastic recoil of the pipeline and gravitational potential energy to create a local negative pressure environment, loosening the blockage. During a preset fifth time period, the lubrication pump is controlled to rotate in a preset second direction with high-frequency start-stop pulses (rather than continuous reverse rotation), generating high-frequency shear waves to break up the blockage. During the above process, the rate of change of the initial oil level data is monitored in real time. If the rate of oil level decrease is lower than the threshold during the forward rotation phase and the rate of oil level increase is higher than the threshold during the reverse rotation phase, the unblocking is considered successful, and the unblocking procedure is exited.

[0052] The first and second gradient speeds are dynamically set based on oil viscosity. The first gradient speed is set to the minimum speed sufficient to overcome the static resistance of the pipeline; the second gradient speed is set to a high speed capable of generating the dynamic pressure required for unblocking. By combining the two, both safe startup and effective unblocking are ensured. The first gradient speed is used for trial oil supply to confirm that there is no risk of instantaneous high pressure in the pipeline before increasing to the higher second gradient speed for strong pressure pushing. This operation is specifically designed for long-distance flexible pipelines to prevent damage to pipe joints due to the "water hammer effect" caused by excessively rapid transmission of instantaneous pressure waves.

[0053] This application does not employ the simple "constant speed forward rotation-stop-constant speed reverse rotation" logic, but instead introduces a composite action of gradient pressurized forward rotation and high-frequency pulse reverse rotation, setting the first and second gradient speeds based on oil viscosity. This solves the technical challenge of long, winding, and often complex "hard on the outside, soft on the inside" structures of lubrication pipelines in wind turbine generators. Specifically, inside high-altitude towers, pipelines are mostly made of flexible rubber or plastic. If high-speed forward rotation is performed directly (as described in the original steps), the instantaneous pressure wave can easily cause pipeline rupture or joint detachment during long-distance transmission. Gradient pressurized forward rotation first fills the pipeline at low speed, then builds pressure at high speed, eliminating the risk of water hammer. Furthermore, traditional reverse rotation often only loosens the surface of the blockage, while high-frequency pulse reverse rotation utilizes high-frequency shear waves to penetrate deep into the blockage, shattering its structure into tiny particles. These particles can then be carried into the filter by the oil flow. This "soft first, hard later; fill first, break later" strategy not only protects the expensive pipeline system from high-pressure impact damage, but also significantly improves the efficiency of clearing stubborn chemical coking blockages, enabling autonomous and safe repair of complex blockages in an unattended state.

[0054] In this embodiment, instead of using a single continuous pressurization or simple start-stop control when dealing with blockages, this step designs a composite sequence of actions including a long forward rotation (preset third time interval), a pause (preset fourth time interval), and a short reverse rotation (preset fifth time interval). This achieves the technical effect of "shattering" the blockage using fluid pulsation and mechanical shear force, solving the problem that traditional single pressurization methods easily lead to pipe rupture or failure to push away stubborn blockages. Specifically, the longer preset third time interval ensures that the pressure is fully transmitted to the blockage point and generates sufficient thrust, while the subsequent pause and reverse action (preset fourth and fifth time intervals) introduce pressure fluctuations and reverse inertial forces. This "push-release-pull" rhythm disrupts the internal structural stability of the blockage (such as dried grease or impurity clumps). Consequently, the blockage breaks or displaces under repeated stress changes and is eventually discharged with the oil. This avoids frequent opening of the safety valve or pipe damage caused by continuously high pressure, significantly improves the success rate of unblocking, and reduces manual maintenance costs.

[0055] This application also provides a lubrication device for a wind power generator; please refer to... Figure 3 The lubrication device of the wind turbine generator includes: The acquisition module 10 is used to acquire multi-source data and determine the target operating condition of the wind power generation unit based on the multi-source data. The multi-source data includes oil temperature data, oil level data, oil pressure data, and load torque data. The lubrication module 20 is used to determine the oil supply strategy corresponding to the target operating condition and to perform lubrication of the wind power generator based on the oil supply strategy.

[0056] Optionally, the acquisition module includes: The judgment submodule is used to determine the oil viscosity and temperature rise rate corresponding to the oil temperature data, calculate the cold viscous drag torque based on the oil viscosity, and determine whether the wind power generator is under the low temperature and high load condition based on the oil temperature data, the cold viscous drag torque, and the temperature rise rate; and / or, calculate the frictional heat generation power based on the load torque data, calculate the oil film thickness based on the oil viscosity corresponding to the oil temperature data, and determine whether the wind power generator is under the low temperature and high load condition based on the frictional heat generation power and the oil film thickness.

[0057] The compensation submodule is used to acquire initial oil level data, oil temperature data, tank size data, and tank attitude data, wherein the tank attitude data includes sway angle and sway acceleration; based on the oil temperature data, the current oil viscosity is determined; based on the oil viscosity and the tank size data, the tank sway damping coefficient and inertia correction coefficient are mapped; based on the tank sway damping coefficient, the inertia correction coefficient, and the tank attitude data, the initial oil level data is compensated to obtain the oil level data.

[0058] Optionally, the lubrication module includes: The control submodule is configured to: if the target operating condition is the low-temperature, high-load condition, control the lubrication pump to run at a preset frequency a preset number of times within a preset first time interval, and at a preset first speed within a preset second time interval, wherein the preset second time interval is determined based on the oil temperature data, and the preset first speed is less than the rated speed; and / or, if the target operating condition is the high-temperature, high-load condition, control the lubrication pump to run at a preset second speed, wherein the preset second speed is greater than the rated speed; and / or, if the target operating condition is the blockage condition, control the lubrication pump to rotate in a preset first direction within a preset third time interval, stop rotating within a preset fourth time interval, and rotate in a preset second direction within a preset fifth time interval, wherein the time span of the preset third time interval is greater than that of the preset fourth and fifth time intervals.

[0059] Optionally, the determination submodule includes: The first calculation unit is used to determine the oil viscosity and temperature rise rate corresponding to the oil temperature data, calculate the cold viscous drag torque based on the oil viscosity, and determine whether the wind power generation unit is under the low temperature and high load condition based on the oil temperature data, the cold viscous drag torque, and the temperature rise rate; and / or, calculate the frictional heat generation power based on the load torque data, calculate the oil film thickness based on the oil viscosity corresponding to the oil temperature data, and determine whether the wind power generation unit is under the low temperature and high load condition based on the frictional heat generation power and the oil film thickness.

[0060] The second calculation unit is used to obtain the theoretical pressure value, and calculate the pressure component based on the oil pressure data and the theoretical pressure value, wherein the theoretical pressure value is determined based on the oil viscosity corresponding to the oil temperature data; if the pressure component is greater than a threshold, the pressure change rate within a preset number of measurement cycles based on the pressure component is obtained, and the wind power generation unit is determined to be in the blockage condition based on the pressure change rate.

[0061] The lubrication device for wind power generators provided in this application, employing the lubrication method for wind power generators described in the above embodiments, can solve the technical problem of lubrication for wind power generators. Compared with the prior art, the beneficial effects of the lubrication device for wind power generators provided in this application are the same as those of the lubrication method for wind power generators provided in the above embodiments, and other technical features in the lubrication device for wind power generators are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0062] This application provides a lubrication device for a wind power generator. The lubrication device for the wind power generator includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the lubrication method for the wind power generator described in Embodiment 1 above.

[0063] The following is for reference. Figure 4 The diagram illustrates a structural schematic of a lubrication device suitable for implementing the embodiments of this application for a wind turbine generator. The lubrication device for the wind turbine generator in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, tablets, digital radio receivers, PDAs (Personal Digital Assistants), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 4 The lubrication equipment for the wind turbine generator shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments of this application.

[0064] like Figure 4As shown, the lubrication equipment of a wind turbine generator may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the wind turbine generator's lubrication equipment. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the lubrication equipment of the wind turbine generator to communicate wirelessly or wiredly with other equipment to exchange data. Although the figure shows lubrication equipment for a wind turbine generator with various systems, it should be understood that implementation or possession of all the systems shown is not required. More or fewer systems may be implemented alternatively.

[0065] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0066] The lubrication device for wind power generators provided in this application, employing the lubrication method for wind power generators described in the above embodiments, can solve the technical problem of lubrication for wind power generators. Compared with the prior art, the beneficial effects of the lubrication device for wind power generators provided in this application are the same as those of the lubrication method for wind power generators provided in the above embodiments, and other technical features of the lubrication device for wind power generators are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0067] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0068] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0069] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to perform the lubrication method of the wind power generation unit in the above embodiments.

[0070] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0071] The aforementioned computer-readable storage medium may be included in the lubrication equipment of the wind turbine generator set; or it may exist independently and not be assembled into the lubrication equipment of the wind turbine generator set.

[0072] The aforementioned computer-readable storage medium carries one or more programs. When the aforementioned one or more programs are executed by the lubrication equipment of the wind power generator, the lubrication equipment of the wind power generator causes the wind power generator to: acquire multi-source data; determine the target operating condition of the wind power generator based on the multi-source data, wherein the multi-source data includes oil temperature data, oil level data, oil pressure data, and load torque data; determine the oil supply strategy corresponding to the target operating condition; and perform lubrication of the wind power generator based on the oil supply strategy.

[0073] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0074] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0075] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0076] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described lubrication method for wind turbine generators, thereby solving the technical problem of lubrication for wind turbine generators. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the lubrication method for wind turbine generators provided in the above embodiments, and will not be repeated here.

[0077] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the lubrication method for a wind power generator as described above.

[0078] The computer program product provided in this application can solve the technical problem of lubrication of wind turbine generators. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the lubrication method for wind turbine generators provided in the above embodiments, and will not be repeated here.

[0079] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. All equivalent structural transformations made under the technical concept of this application and using the content of this application specification and drawings, or direct / indirect applications in other related technical fields, are included in the scope of protection of this application.

Claims

1. A lubrication method for a wind power generator, characterized in that, The lubrication method for the wind turbine generator includes: Acquire multi-source data, and based on the multi-source data, determine the target operating condition of the wind power generation unit, wherein the multi-source data includes oil temperature data, oil level data, oil pressure data, and load torque data; Determine the oil supply strategy corresponding to the target operating condition, and perform lubrication of the wind turbine generator based on the oil supply strategy.

2. The lubrication method for a wind power generator as described in claim 1, characterized in that, The target operating condition includes at least one of high-load operating condition and congestion operating condition, and the step of determining the target operating condition of the wind power generation unit based on the multi-source data includes: Based on the oil temperature data and the load torque data, determine whether the wind power generation unit is under the high load condition; And / or, based on the oil pressure data, determine whether the wind turbine is in the blockage condition.

3. The lubrication method for a wind power generator as described in claim 2, characterized in that, The high-load operating condition includes either a low-temperature high-load operating condition or a high-temperature high-load operating condition. The step of determining whether the wind power generator is under the high-load operating condition based on the oil temperature data and the load torque data includes: Determine the oil viscosity and temperature rise rate corresponding to the oil temperature data; calculate the cold viscous drag torque based on the oil viscosity; and determine whether the wind power generator is under the low temperature and high load condition based on the oil temperature data, the cold viscous drag torque, and the temperature rise rate. And / or, based on the load torque data, calculate the frictional heat generation power, based on the oil viscosity corresponding to the oil temperature data, calculate the oil film thickness, and based on the frictional heat generation power and the oil film thickness, determine whether the wind power generator is under the low temperature and high load condition.

4. The lubrication method for a wind power generator as described in claim 2, characterized in that, The step of determining whether the wind turbine is in the blockage condition based on the oil pressure data includes: Obtain the theoretical pressure value, and calculate the pressure component based on the oil pressure data and the theoretical pressure value, wherein the theoretical pressure value is determined based on the oil viscosity corresponding to the oil temperature data; If the pressure component is greater than the threshold, the pressure change rate within a preset number of measurement cycles based on the pressure component is obtained, and based on the pressure change rate, it is determined whether the wind power generation unit is in the blockage condition.

5. The lubrication method for a wind power generator as described in claim 1, characterized in that, Prior to the step of acquiring multi-source data, the following is included: Acquire initial oil level data, oil temperature data, oil tank size data, and oil tank attitude data, wherein the oil tank attitude data includes sway angle and sway acceleration; Based on the oil temperature data, the current oil viscosity is determined. Based on the oil viscosity and the oil tank size data, the oil tank sway damping coefficient and inertia correction coefficient are mapped to obtain the oil tank sway damping coefficient and inertia correction coefficient. Based on the tank sloshing damping coefficient, the inertia correction coefficient, and the tank attitude data, the initial oil level data is compensated to obtain the oil level data.

6. The lubrication method for a wind power generator as described in claim 3, characterized in that, The step of determining the fuel supply strategy corresponding to the target operating condition includes: If the target operating condition is the low temperature and high load operating condition, the lubrication pump is controlled to run at a preset frequency for a preset number of times within a preset first time interval, and to run at a preset first speed within a preset second time interval, wherein the preset second time interval is determined based on the oil temperature data, and the preset first speed is less than the rated speed. And / or, if the target operating condition is the high temperature and high load operating condition, control the lubrication pump to operate at a preset second speed, wherein the preset second speed is greater than the rated speed; And / or, if the target operating condition is the blockage operating condition, the lubrication pump is controlled to rotate in a preset first direction within a preset third time period, and stop rotating within a preset fourth time interval, and rotate in a preset second direction within a preset fifth time interval, wherein the time span of the preset third time period is greater than that of the preset fourth time interval and the preset fifth time interval.

7. A lubrication device for a wind power generator, characterized in that, The device includes: The acquisition module is used to acquire multi-source data and determine the target operating condition of the wind power generation unit based on the multi-source data. The multi-source data includes oil temperature data, oil level data, oil pressure data, and load torque data. The lubrication module is used to determine the oil supply strategy corresponding to the target operating condition, and to perform lubrication of the wind turbine generator based on the oil supply strategy.

8. A lubrication device for a wind power generator, characterized in that, The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the lubrication method for a wind turbine generator as described in any one of claims 1 to 6.

9. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the lubrication method for a wind power generator as described in any one of claims 1 to 6.

10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the steps of the lubrication method for a wind turbine generator as described in any one of claims 1 to 6.