CN110567712A - Method for evaluating wear of fan gearbox and related equipment - Google Patents
Method for evaluating wear of fan gearbox and related equipment Download PDFInfo
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- CN110567712A CN110567712A CN201910868381.8A CN201910868381A CN110567712A CN 110567712 A CN110567712 A CN 110567712A CN 201910868381 A CN201910868381 A CN 201910868381A CN 110567712 A CN110567712 A CN 110567712A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
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Abstract
the embodiment of the application discloses a method for evaluating wear of a fan gear box and related equipment, which are used for accurately evaluating the wear degree of the fan gear box and providing guarantee for safe and reliable operation of a wind turbine generator. The method in the embodiment of the application comprises the following steps: acquiring a first power generation amount of a fan and a first increase amount of iron elements in gear oil of the fan in a first time period; calculating a target increment according to the first power generation amount and the first increment of the iron element, wherein the target increment is used for indicating the increment of the iron element in the available effective time of the fan in the first time period; and evaluating the wear degree of the gearbox of the fan by using the target increment. The abrasion degree of the gear box of the fan is evaluated after the iron element in the fan gear oil and the fan power generation amount are correlated to calculate the target increase amount, and compared with the prior art that the abrasion degree of the gear box is analyzed only by utilizing the iron content data trend, the abrasion degree of the gear box under the operation working condition can be reflected more truly and accurately.
Description
Technical Field
The application relates to the field of fan power generation, in particular to a fan gear box abrasion assessment method and related equipment.
Background
The wind generating set can be divided into a double-fed wind generating set with a multi-stage speed-increasing gear box, a direct-drive wind generating set without the speed-increasing gear box and a semi-direct-drive wind generating set with a one-stage speed-increasing gear box according to the structural form of a main transmission chain, and can be divided into a constant-speed constant-leading wind generating set and a variable-speed constant-frequency wind generating set according to the rotating speed adjusting mode of the wind generating set.
As a core component of a transmission chain of the wind turbine generator, the gear box plays a crucial role in the efficient operation of the whole generator. The gear box is used as a speed increasing component of the wind turbine generator, low-rotating-speed and high-torque power transmitted to a wind wheel through blades is converted into high-rotating-speed and low-torque power to drive a generator to generate electricity, gears and bearings in the gear box of the fan are inevitably abraded by friction in the process, the visual expression of abrasion is that iron elements in gear oil are increased, and the abrasion condition of the gear box of the fan is judged by monitoring the content of the iron elements in the gear oil offline.
at present, the change trend established by regularly monitoring the wear iron element content of the gear box is evaluated and judged, and because the fan may not run for various reasons in the gear oil monitoring process, the wear condition of the gear box under the actual operation working condition cannot be truly reflected by the monitoring iron element content.
Content of application
the embodiment of the application provides a fan gear box abrasion evaluation method and related equipment, which are used for accurately evaluating the abrasion degree of a fan gear box and providing guarantee for safe and reliable operation of a wind turbine generator.
In a first aspect, an embodiment of the present application provides a method for evaluating wear of a gearbox of a wind turbine, including:
Acquiring a first power generation amount of a fan and a first increase amount of iron elements in gear oil of the fan in a first time period;
calculating a target increment according to the first power generation amount and the first increment of the iron element, wherein the target increment is used for indicating the increment of the iron element in the available effective time of the fan in the first time period;
and evaluating the wear degree of the gearbox of the fan by using the target increase amount.
Optionally, the fan includes n fans, n is an integer greater than 1, and the evaluating the wear degree of the gearbox of the fan by using the target increase amount specifically includes:
calculating mathematical expected values E (P) and standard deviations S of the target increment of the n fans by using the target increment;
And evaluating the wear degree of the gearbox of the fan according to the mathematical expected value E (P) and the standard deviation S.
optionally, the evaluating the degree of gearbox wear of the wind turbine according to the mathematical expected value E (P) and the standard deviation S specifically includes:
determining a reference value by using the mathematical expected value E (P) and the standard deviation S, wherein the reference value comprises a reference value, an early warning value and/or an alarm value;
And evaluating the wear degree of the gearbox of the fan by using the reference value.
Optionally, after evaluating a degree of gearbox wear of the wind turbine using the target increase amount, the method further comprises:
And providing a maintenance suggestion for the fan according to the wear degree of the gearbox of the fan.
a second aspect of the embodiments of the present application provides a wear evaluation system for a gearbox of a wind turbine, including:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a first power generation amount of a fan and a first increase amount of iron elements in gear oil of the fan in a first time period;
the calculation unit is used for calculating a target increment according to the first power generation amount and the first increment of the iron element, and the target increment is used for indicating the increment of the iron element in the available effective time of the fan in the first time period;
and the evaluation unit is used for evaluating the wear degree of the gearbox of the fan by using the target increase amount.
Optionally, the fan includes n fans, n is an integer greater than 1, and the evaluation unit is specifically configured to:
Calculating mathematical expected values E (P) and standard deviations S of the target increment of the n fans by using the target increment;
And evaluating the wear degree of the gearbox of the fan according to the mathematical expected value E (P) and the standard deviation S.
optionally, the evaluation unit is specifically configured to:
determining a reference value by using the mathematical expected value E (P) and the standard deviation S, wherein the reference value comprises a reference value, an early warning value and/or an alarm value;
And evaluating the wear degree of the gearbox of the fan by using the reference value.
Optionally, after evaluating a degree of gearbox wear of the wind turbine using the target increase amount, the method further comprises:
And the providing unit is used for providing maintenance suggestions for the fan according to the abrasion degree of the gearbox of the fan.
A third aspect of embodiments of the present application provides a computer device, including:
a processor, a memory, an input-output device, and a bus;
The processor, the memory and the input and output equipment are respectively connected with the bus;
the processor is configured to perform the method as described in the method embodiments above.
a fourth aspect of embodiments of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein: which when executed by a processor implements the steps of the method according to the previous embodiment.
According to the technical scheme, the embodiment of the application has the following advantages: in the embodiment, a first power generation amount of a fan and a first increase amount of iron elements in gear oil of the fan in a first time period are obtained; calculating a target increment according to the first power generation amount and the first increment of the iron element, wherein the target increment is used for indicating the increment of the iron element in the available effective time of the fan in the first time period; and evaluating the wear degree of the gearbox of the fan by using the target increase amount. The method comprises the steps of calculating a target increase amount for evaluating the wear degree of a gearbox of the fan through a first power generation amount of the fan in a first time period, namely, calculating the wear degree of the gearbox of the fan after the target increase amount is obtained by correlating iron elements in gear oil of the fan with the power generation amount of the fan, and reflecting the wear degree of the gearbox under the operation working condition more truly and accurately compared with the method for analyzing the wear degree of the gearbox by utilizing iron content data trend in the prior art.
drawings
FIG. 1 is a schematic diagram of an embodiment of a method for evaluating wear of a gearbox of a wind turbine according to an embodiment of the present disclosure;
FIG. 2 is another schematic diagram of an embodiment of a method for evaluating wear of a gearbox of a wind turbine according to an embodiment of the present disclosure;
FIG. 3 is another schematic diagram of an embodiment of a method for evaluating wear of a gearbox of a wind turbine according to an embodiment of the present disclosure;
FIG. 4 is another schematic diagram of an embodiment of a method for evaluating wear of a gearbox of a wind turbine according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of an embodiment of a system for evaluating wear of a gearbox of a wind turbine according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of an embodiment of a computer device in the embodiment of the present application.
Detailed Description
The embodiment of the application provides a fan gear box abrasion evaluation method and related equipment, which are used for accurately evaluating the abrasion degree of a fan gear box and providing guarantee for safe and reliable operation of a wind turbine generator.
in order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
the terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the prior art, wind generating sets can be divided into a double-fed wind generating set with a multi-stage speed-up gear box, a direct-drive wind generating set without a speed-up gear box and a semi-direct-drive wind generating set with a one-stage speed-up gear box according to the structural form of a main transmission chain, and can be divided into a constant-speed constant-leading wind generating set and a variable-speed constant-frequency wind generating set according to the rotating speed adjusting mode of the wind generating set. As a core component of a transmission chain of the wind turbine generator, the gear box plays a crucial role in the efficient operation of the whole generator. The gear box is used as a speed increasing component of the wind turbine generator, low-rotating-speed and high-torque power transmitted to a wind wheel through blades is converted into high-rotating-speed and low-torque power to drive a generator to generate electricity, gears and bearings in the gear box of the fan are inevitably abraded by friction in the process, the visual expression of abrasion is that iron elements in gear oil are increased, and the abrasion condition of the gear box of the fan is judged by monitoring the content of the iron elements in the gear oil offline. At present, the change trend established by regularly monitoring the wear iron element content of the gear box is evaluated and judged, and because the fan may not run for various reasons in the gear oil monitoring process, the wear condition of the gear box under the actual operation working condition cannot be truly reflected by the monitoring iron element content. Therefore, the embodiment of the application provides an evaluation method and related equipment for fan gear box abrasion, which are used for accurately evaluating the abrasion degree of a fan gear box and providing guarantee for safe and reliable operation of a wind turbine generator.
for the convenience of understanding, a specific flow in the embodiment of the present application is described below, and referring to fig. 1, an embodiment of a method for evaluating wear of a gearbox of a wind turbine in the embodiment of the present application includes:
101. acquiring a first power generation amount of a fan and a first increase amount of iron elements in gear oil of the fan in a first time period;
in this embodiment, the specific execution main body may be a computer device, for example, a tablet computer, a notebook computer, a smart phone, a server, or another computer device, which is not limited herein, And may also be directly operated on a data acquisition And monitoring Control System (SCADA) on the computer device. In this step, the apparatus obtains a first amount of power generation of the fan and a first increase amount of iron element in gear oil of the fan for a first period of time.
In this and the following embodiments, the starting time of the first time period is T1The termination time is T2For example, the process of obtaining the first power generation amount may be through datathe collection and monitoring control system may obtain the data, or obtain the data by reading the data sent by other terminal devices, which is not limited herein, and the following description takes SCADA as an example, that is, firstly, a single fan T is read by SCADA1Generating capacity kWh at any moment1Then reading a single fan T through SCADA again2Generating capacity kWh at the moment, and further calculating T1And T2the first power generation amount delta kWh of the fan in the time period.
in addition, the first increase amount of the iron element in the gear oil of the fan can be obtained through on-line monitoring or off-line monitoring, and in order to ensure the operation safety, the first increase amount can be obtained through an off-line monitoring mode. In particular, it may be T1constantly offline monitoring Fe content of iron element in gear oil of single fan1At T2constantly offline monitoring Fe content of iron element in gear oil of single fan2And finally settling T through an offline monitoring result1And T2first increase delta Fe of iron element in gear oil of fan in time period0。
102. Calculating a target increment according to the first power generation amount and the first increment of the iron element;
In this embodiment, the device calculates a target increase amount according to the first power generation amount and the first increase amount of the iron element, where the target increase amount is used to indicate an increase amount of the iron element in the available effective time of the fan in the first time period.
Specifically, a target increase is calculated by using the first power generation amount and the first increase of the iron element obtained in step 101, where the target increase is used to indicate the increase of the iron element in the available active time of the wind turbine in the first time period, that is, the target increase refers to the increase of the iron element in the active operation time of the wind turbine in the first time period, and may be, for example, all the increases of the iron element in the active operation time of the wind turbine, and for convenience of subsequent description, the target increase may also be the increase of the iron element per unit time in the active operation time of the wind turbine, and is not limited herein.
103. And evaluating the wear degree of the gearbox of the fan by using the target increase amount.
in this embodiment, the apparatus evaluates the degree of wear of the gearbox of the fan using the target increase amount. Specifically, in the actual application process of the scheme, an operator may combine and evaluate the wear degree of the gearbox of the fan according to experience values of multiple experiments, and may further use a mathematical statistics method to collect the target increase amounts of the multiple fans to further evaluate the wear degree of the gearbox of the fan, which is not limited herein.
In the embodiment, a first power generation amount of a fan and a first increase amount of iron elements in gear oil of the fan in a first time period are obtained; calculating a target increment according to the first power generation amount and the first increment of the iron element, wherein the target increment is used for indicating the increment of the iron element in the available effective time of the fan in the first time period; and evaluating the wear degree of the gearbox of the fan by using the target increase amount. The method comprises the steps of calculating a target increase amount for evaluating the wear degree of a gearbox of the fan through a first power generation amount of the fan in a first time period, namely, calculating the wear degree of the gearbox of the fan after the target increase amount is obtained by correlating iron elements in gear oil of the fan with the power generation amount of the fan, and reflecting the wear degree of the gearbox under the operation working condition more truly and accurately compared with the prior art that the wear degree of the gearbox is analyzed only by utilizing iron content data trend.
referring to fig. 2, based on the embodiment shown in fig. 1, in an embodiment of a method for evaluating wear of a gearbox of a wind turbine in the embodiment of the present application, after evaluating a wear degree of the gearbox of the wind turbine using the target increase amount in step 103, the method further includes:
201. And providing a maintenance suggestion for the fan according to the wear degree of the gearbox of the fan.
In this embodiment, after the target increment is used to evaluate the wear degree of the gearbox of the fan in step 103, a maintenance suggestion may be provided for the fan according to the wear degree of the gearbox of the fan, for example, when the wear of the gearbox is evaluated to be normal wear, the maintenance suggestion may be to perform a regular inspection on the equipment according to a normal detection period, when the gearbox is evaluated to have abnormal wear, the maintenance suggestion may be to increase the monitoring frequency of the gear oil, pay attention to the detection result of the iron spectrum of the oil sample, pay attention to the temperature change of the oil and the bearing of the gearbox, strengthen the vibration monitoring, and perform the endoscopic detection, and when the gearbox is evaluated to have severe abnormal wear, the maintenance suggestion may be to perform the endoscopic detection in time, prepare to replace new oil, prepare to. Based on this, the embodiment calculates the target increase amount for evaluating the wear degree of the fan gear box through the first power generation amount of the fan in the first time period, that is, the iron element in the fan gear oil and the fan power generation amount are correlated to calculate the wear degree of the fan gear box after the target increase amount is obtained.
referring to fig. 3, in an embodiment of a method for evaluating wear of a gearbox of a fan in the embodiment of the present application, based on the embodiment shown in fig. 1 or fig. 2, the fan includes n fans, n is an integer greater than 1, and step 103 evaluates the wear degree of the gearbox of the fan by using the target increase specifically includes:
301. Calculating mathematical expected values E (P) and standard deviations S of the target increment of the n fans by using the target increment;
In this embodiment, the process of evaluating the wear degree of the gearbox of the fan by using the target increase amount in step 103 may specifically adopt a mathematical statistical method for evaluation, and for example, the fan data collected in steps 101 and 102 may be data of multiple fans, that is, the fans include n fans, where n is an integer greater than 1. When there are n fans of data, the target increase amount may be used to calculate the mathematical expected value E (P) and standard deviation S of the target increase amount for the n fans for subsequent detailed evaluation.
Specifically, in step 102, when the target increase amount may also be an increase amount of iron element per unit time of the fan during the effective operation time, a calculation formula of a calculation value Δ Fe (iron element increase/per 100 available hours) for calculating a sample of the increase amount of wear iron element per available hour may include:
after that, establishing a wear degree monitoring threshold value of the fan gearbox by using a probability statistics mathematical method:
That is, the target increase amount Δ Fe (iron element increment/per 100 available hours) sample mathematical expected value may include:
In the formula, n is the total number of samples; p i (i ═ 1, 2, …, n) is the target increase Δ Fe sample reading.
at this time, the standard deviation of the data collected by the n fans may include:
302. and evaluating the wear degree of the gearbox of the fan according to the mathematical expected value E (P) and the standard deviation S.
in this embodiment, after obtaining the mathematical expectations and standard deviations of the data collected by the plurality of fans in step 301, they may be used to evaluate the wear degree of the gearbox of the fan. Specifically, the target increase amount Δ Fe of any one or more of n fans can be compared with the mathematical expected value E (P) and the standard deviation S by a mathematical method, so that the data deviation condition can be obtained, and the wear degree of the gearbox of the fan can be accurately evaluated.
Referring to fig. 4, in an embodiment of the method for evaluating wear of a gearbox of a wind turbine in the embodiment of the present application, based on the embodiment shown in fig. 3, the step 302 of evaluating a wear degree of the gearbox of the wind turbine according to the mathematical expected value E (P) and the standard deviation S specifically includes:
401. Determining a reference value using the mathematical expected value E (P) and the standard deviation S;
in this embodiment, the device determines a reference value using the mathematical expected value E (P) and the standard deviation S, where the reference value includes a reference value, an early warning value, and/or an alarm value.
Specifically, in step 302, using the expected mathematical value E (P) and the standard deviation S, a reference value may be determined first using a mathematical method, that is, a reference value may be determined according to the expected mathematical value E (P) and the standard deviation S, where the reference value includes a reference value, an early warning value, and/or an alarm value.
The following description is given in terms of a preferred embodiment: according to probability statistics, a rule of "3 σ" is usually selected for normal distribution, and the exceeding "3 σ" is defined as a dangerous value. At this time, it can be found that the reference value: e (P); early warning value: e (P) +2S alarm value: e (P) + 3S. Specifically, in the practical application process of the scheme, a technician can simply perform transformation according to the relevant formula and definition in the embodiment to adapt to the practical application scenario.
402. And evaluating the wear degree of the gearbox of the fan by using the reference value.
In this embodiment, the apparatus uses the reference value to estimate the degree of wear of the gearbox of the fan.
specifically, after obtaining the reference value in step 401, the reference value may be used to estimate a degree of gearbox wear of the wind turbine, as described in this step in connection with evaluating subsequent provided recommendations.
wherein, judge through fan gear box wearing and tearing degree, provide preventive maintenance suggestion, specifically can include:
1. When Δ Fe < E (P) +2S is determined, the gearbox wear is assessed as normal wear and the repair recommendation may be to perform a scheduled check of the equipment according to a normal check cycle.
2. When E (P) +2S < delta Fe < E (P) +3S, the gear box is abnormally abraded, and the maintenance suggestion can be to increase the gear oil monitoring frequency, pay attention to the oil sample ferrographic detection result, pay attention to the gear box oil temperature and bearing temperature change, strengthen the vibration monitoring, develop the endoscope detection.
3. When the delta Fe is larger than E (P) +3S, the gear box is severely and abnormally abraded, and the maintenance suggestion can be to develop endoscope detection in time, prepare for replacing new oil, prepare for replacing gear box accessories and the like.
The method in the embodiment of the present application is introduced above, and the embodiment of the present application is described below from the perspective of a virtual device.
Referring to fig. 5, an evaluation system for wear of a gearbox of a wind turbine according to an embodiment of the present disclosure includes:
The acquiring unit 501 is used for acquiring a first power generation amount of a fan and a first increase amount of iron elements in gear oil of the fan in a first time period;
a calculating unit 502, configured to calculate a target increase according to the first power generation amount and the first increase of the iron element, where the target increase is used to indicate an increase of the iron element in an available effective time of the fan in the first time period;
An evaluation unit 503, configured to evaluate a degree of gearbox wear of the fan using the target increase amount.
in this embodiment, the obtaining unit 501 is configured to obtain a first power generation amount of a fan and a first increase amount of an iron element in gear oil of the fan in a first time period; a calculating unit 502, configured to calculate a target increase according to the first power generation amount and the first increase of the iron element, where the target increase is used to indicate an increase of the iron element in an available effective time of the fan in the first time period; an evaluation unit 503, configured to evaluate a degree of gearbox wear of the fan using the target increase amount. The method comprises the steps of calculating a target increase amount for evaluating the wear degree of a gearbox of the fan through a first power generation amount of the fan in a first time period, namely, calculating the wear degree of the gearbox of the fan after the target increase amount is obtained by correlating iron elements in gear oil of the fan with the power generation amount of the fan, and reflecting the wear degree of the gearbox under the operation working condition more truly and accurately compared with the method for analyzing the wear degree of the gearbox by utilizing iron content data trend in the prior art.
as a preferred scheme, the fan includes n fans, where n is an integer greater than 1, and the evaluation unit 503 is specifically configured to:
calculating mathematical expected values E (P) and standard deviations S of the target increment of the n fans by using the target increment;
and evaluating the wear degree of the gearbox of the fan according to the mathematical expected value E (P) and the standard deviation S.
As a preferred aspect, the evaluation unit 503 is specifically configured to:
determining a reference value by using the mathematical expected value E (P) and the standard deviation S, wherein the reference value comprises a reference value, an early warning value and/or an alarm value;
and evaluating the wear degree of the gearbox of the fan by using the reference value.
as a preferred aspect, after evaluating a degree of gearbox wear of the wind turbine using the target increase amount, the system further includes:
A unit 504 is provided for providing a service recommendation for the wind turbine based on a degree of wear of a gearbox of the wind turbine.
referring to fig. 6, an embodiment of a computer device in the embodiment of the present application includes:
The apparatus 600 may have a relatively large difference due to different configurations or performances, and may include one or more Central Processing Units (CPUs) 601 (e.g., one or more processors) and a memory 605, where one or more applications or data are stored in the memory 605.
The memory 605 may be volatile storage or persistent storage, among other things. The program stored in the memory 605 may include one or more modules, each of which may include a sequence of instructions operating on a server. Further, the central processor 601 may be configured to communicate with the memory 605 to execute a series of instruction operations in the memory 605 on the smart terminal 600.
The apparatus 600 may also include one or more power supplies 602, one or more wired or wireless network interfaces 603, one or more input-output interfaces 604, and/or one or more operating systems, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, and the like.
The process executed by the central processing unit 601 in the computer device 600 in this embodiment is similar to the steps executed in the method process described in the foregoing embodiment, and is not described here again. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above steps do not mean the execution sequence, and the execution sequence of the steps should be determined by their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A method for evaluating wear of a gearbox of a fan, comprising:
Acquiring a first power generation amount of a fan and a first increase amount of iron elements in gear oil of the fan in a first time period;
calculating a target increment according to the first power generation amount and the first increment of the iron element, wherein the target increment is used for indicating the increment of the iron element in the available effective time of the fan in the first time period;
And evaluating the wear degree of the gearbox of the fan by using the target increase amount.
2. The method of claim 1, wherein the wind turbine includes n wind turbines, n being an integer greater than 1, and wherein the evaluating the degree of gearbox wear of the wind turbine using the target increase amount specifically includes:
calculating mathematical expected values E (P) and standard deviations S of the target increment of the n fans by using the target increment;
And evaluating the wear degree of the gearbox of the fan according to the mathematical expected value E (P) and the standard deviation S.
3. the method according to claim 2, wherein said evaluating the degree of gearbox wear of the wind turbine as a function of the mathematical desired value E (P) and the standard deviation S comprises in particular:
determining a reference value by using the mathematical expected value E (P) and the standard deviation S, wherein the reference value comprises a reference value, an early warning value and/or an alarm value;
and evaluating the wear degree of the gearbox of the fan by using the reference value.
4. The method of any of claims 1 to 3, after evaluating a degree of gearbox wear of the wind turbine using the target increase amount, the method further comprising:
And providing a maintenance suggestion for the fan according to the wear degree of the gearbox of the fan.
5. A fan gearbox wear assessment system, comprising:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a first power generation amount of a fan and a first increase amount of iron elements in gear oil of the fan in a first time period;
The calculation unit is used for calculating a target increment according to the first power generation amount and the first increment of the iron element, and the target increment is used for indicating the increment of the iron element in the available effective time of the fan in the first time period;
And the evaluation unit is used for evaluating the wear degree of the gearbox of the fan by using the target increase amount.
6. The system of claim 5, wherein the fan comprises n fans, n being an integer greater than 1, the evaluation unit being specifically configured to:
Calculating mathematical expected values E (P) and standard deviations S of the target increment of the n fans by using the target increment;
And evaluating the wear degree of the gearbox of the fan according to the mathematical expected value E (P) and the standard deviation S.
7. the system according to claim 6, wherein the evaluation unit is specifically configured to:
Determining a reference value by using the mathematical expected value E (P) and the standard deviation S, wherein the reference value comprises a reference value, an early warning value and/or an alarm value;
and evaluating the wear degree of the gearbox of the fan by using the reference value.
8. the system of any of claims 5 to 7, after evaluating a degree of gearbox wear of the wind turbine using the target increase amount, the method further comprising:
And the providing unit is used for providing maintenance suggestions for the fan according to the abrasion degree of the gearbox of the fan.
9. A computer device, comprising:
A processor, a memory, an input-output device, and a bus;
the processor, the memory and the input and output equipment are respectively connected with the bus;
The processor is configured to perform the method of any one of claims 1 to 4.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program realizing the steps of the method according to any one of claims 1 to 4 when executed by a processor.
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