Generator vibration reduction debugging method, device, equipment and medium

Abstract

The invention discloses a generator vibration reduction debugging method, device and equipment and a medium, and relates to the technical field of wind power generation. According to the scheme, the dynamic simulation model of the elastic support system of the generator is built in advance, the inherent frequency of the system can be quickly calculated only by inputting the basic rigidity and inertial parameters of the generator system into the model, and meanwhile, the influence condition of the rigidity of the elastic support in each direction on the inherent frequency of each order of the generator system is analyzed; and therefore, the design, model selection and evaluation of the elastic support are realized, guidance suggestions of rigidity adjustment of the elastic support are accurately provided for field debugging personnel, manual experience does not need to be relied on, resonance of the system at different rotating speeds is avoided, and the problems of vibration reduction requirements and abnormal vibration of the generator are efficiently solved.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, and in particular to a generator vibration reduction and debugging method, device, equipment and medium. Background Art

[0002] With the development of large-scale wind turbines, the structure of the turbines is facing increasingly serious vibration and noise problems, especially abnormal noise or excessive vibration of the transmission system, which has become an important factor affecting the normal operation of the turbines. To solve this problem, vibration reduction and isolation technology are widely used in the design and operation and maintenance of wind turbines.

[0003] Generator elastic supports are vibration isolation components designed to reduce the vibration transmitted from the generator assembly to the base frame structure. However, the current selection, location installation and optimization design of vibration isolators mainly rely on experience, and there is a lack of systematic parameter matching research and analytical calculations for different generator performance parameters. This leads to a mismatch between the system and components, and the rubber elastic supports cannot function effectively, and may even aggravate the vibration problem.

[0004] In view of the above, how to solve the problem that the current wind turbine vibration reduction and isolation technology relies on experience-based selection and installation, lacks systematic matching research and analytical calculations for different generator performance parameters, and has poor vibration reduction effects is an urgent problem to be solved by technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to provide a generator vibration reduction debugging method, device, equipment and medium to solve the problem that the current wind turbine vibration reduction and isolation technology relies on experience-based selection and installation, lacks systematic matching research and analytical calculation for different generator performance parameters, and has poor vibration reduction effect.

[0006] In order to solve the above technical problems, the present invention provides a generator vibration reduction debugging method, comprising:

[0007] Obtain the inertia parameters of the generator system and the dynamic stiffness of the corresponding elastic support in each direction;

[0008] Inputting the inertia parameter and the dynamic stiffness into a pre-built dynamic simulation model of a generator elastic support system to output multiple-order natural frequencies of the generator system;

[0009] According to each of the natural frequencies and the dynamic stiffness, evaluating the influence weight value of each of the dynamic stiffnesses on each order of the natural frequencies;

[0010] The elastic support is debugged according to each of the influence weight values.

[0011] On the one hand, obtaining the inertia parameter of the generator system includes:

[0012] The mass, center of mass position, rotation management in all directions, and installation position of the elastic support of the generator system are obtained by using the three-dimensional design software corresponding to the generator system and / or by performing system inertia parameter and structural dynamics tests on the generator system.

[0013] On the other hand, according to each of the natural frequencies and the dynamic stiffness, evaluating the influence weight value of each of the dynamic stiffnesses on each order of the natural frequencies includes:

[0014] Building a sensitivity analysis process of multiple natural frequencies and dynamic stiffnesses based on a simulation optimization engine;

[0015] Based on the sensitivity analysis process, a Latin hypercube sampling method is used to perform an experimental design analysis to obtain a sensitivity relationship matrix diagram between each of the natural frequencies and each of the dynamic stiffnesses;

[0016] The influence weight values ​​of each of the dynamic stiffnesses on each of the natural frequencies are obtained according to the sensitivity relationship matrix diagram.

[0017] On the other hand, debugging the elastic support according to each of the influence weight values ​​includes:

[0018] Obtaining the influence weight value of each dynamic stiffness on each natural frequency in the sensitivity relationship matrix diagram;

[0019] Determine whether each impact weight value is greater than a threshold value;

[0020] If so, the elastic support corresponding to the influence weight value greater than the threshold is determined as the target elastic support, and prompt information representing replacement of the target elastic support is output.

[0021] On the other hand, before evaluating the influence weight value of each dynamic stiffness on each order of the natural frequency according to each natural frequency and the dynamic stiffness, after obtaining the multi-order natural frequencies of the generator system, it also includes:

[0022] Judging whether the current generator system has a resonance risk according to each of the natural frequencies and the rated operating condition of the generator system;

[0023] If not, entering the step of evaluating the influence weight value of each dynamic stiffness on each order of the natural frequency according to each natural frequency and the dynamic stiffness;

[0024] If yes, control the generator system to reduce load or shut down;

[0025] Outputting prompt information indicating resonance of the generator system.

[0026] On the other hand, if it is confirmed that the current generator system has a resonance risk, it also includes:

[0027] performing fault diagnosis on the generator system to determine a cause of resonance of the generator system;

[0028] The cause of the resonance is uploaded to a control center of the generator system.

[0029] On the other hand, it also includes:

[0030] When the target elastic support is replaced, a performance test is performed on the new target elastic support to determine the vibration reduction performance of the new target elastic support;

[0031] Determining whether the vibration reduction performance of the new target elastic support meets the preset requirements;

[0032] If not, the reason why the vibration reduction performance does not meet the preset requirement is analyzed, and according to the reason, a new target elastic support is debugged again, or a new target elastic support is replaced;

[0033] If yes, then end.

[0034] In order to solve the above technical problems, the present invention also provides a generator vibration reduction debugging device, comprising:

[0035] An acquisition module, used to acquire the inertia parameters of the generator system and the dynamic stiffness of the corresponding elastic support in each direction;

[0036] A simulation module, used for inputting the inertia parameter and the dynamic stiffness into a pre-built dynamic simulation model of a generator elastic support system to output multiple-order natural frequencies of the generator system;

[0037] An evaluation module, used for evaluating the influence weight value of each dynamic stiffness on each order of the natural frequency according to each natural frequency and the dynamic stiffness;

[0038] A debugging module is used to debug the elastic support according to each of the influence weight values.

[0039] In order to solve the above technical problems, the present invention also provides a generator vibration reduction debugging device, comprising:

[0040] Memory for storing computer programs;

[0041] A processor is used to implement the steps of the above-mentioned generator vibration reduction debugging method when executing the computer program.

[0042] In order to solve the above technical problem, the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above generator vibration reduction debugging method are implemented.

[0043] The generator vibration reduction debugging method provided by the present invention obtains the inertia parameters of the generator system and the dynamic stiffness of the corresponding elastic support in each direction; inputs the inertia parameters and dynamic stiffness into a pre-built dynamic simulation model of the generator elastic support system to output the multi-order natural frequencies of the generator system; evaluates the influence weight value of each dynamic stiffness on each order of natural frequency according to each natural frequency and dynamic stiffness; and debugs the elastic support according to each influence weight value. The beneficial effect of the present invention is that by pre-building a dynamic simulation model of the generator elastic support system, only the basic stiffness and inertia parameters of the generator system need to be input into the model, the natural frequency of the system can be quickly calculated, and the influence of the stiffness of the elastic support in each direction on the natural frequency of each order of the generator system can be analyzed, thereby providing guidance for the design, selection and evaluation of the elastic support, and accurately providing guidance for the adjustment of the elastic support stiffness for the on-site debugging personnel, without relying on manual experience, avoiding the resonance of the system at different speeds, and efficiently solving the generator vibration reduction requirements and abnormal vibration problems.

[0044] In addition, the present invention also provides a generator vibration reduction debugging device, equipment and medium, with the same effect as above. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 A flow chart of a generator vibration reduction debugging method provided by an embodiment of the present invention;

[0047] Figure 2 A sensitivity relationship matrix diagram provided by an embodiment of the present invention;

[0048] Figure 3 A schematic diagram of the distribution position of elastic supports provided in an embodiment of the present invention;

[0049] Figure 4 A schematic diagram of a generator vibration reduction debugging device provided by an embodiment of the present invention;

[0050] Figure 5 A schematic diagram of a generator vibration reduction debugging device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The core of the present invention is to provide a generator vibration reduction and debugging method, device, equipment and medium to solve the problem that the current wind turbine vibration reduction and isolation technology relies on experience-based selection and installation, lacks systematic matching research and analytical calculation for different generator performance parameters, and has poor vibration reduction effect.

[0053] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0054] With the development trend of large-scale wind turbines, the structure of the turbines is facing more and more prominent vibration and noise problems. Due to large-scale and large components, it is easy to cause abnormal noise or excessive vibration in the transmission system of the turbine, which is a common fault in the operation of wind turbines and has become an important factor affecting the normal operation of wind turbines.

[0055] In order to reduce or eliminate harmful vibrations of wind turbines, many vibration reduction and isolation technologies are applied to the design and subsequent operation and maintenance of wind turbines. The generator elastic support (Engine Elastic Support) is a vibration isolation component designed to reduce the vibration transmitted from the generator assembly to the base frame structure. However, in terms of the selection of isolators, location installation, and optimal design of the vibration reduction system, it mainly relies on experience, and has not conducted systematic parameter matching research and analytical calculations for different generator performance parameters, resulting in the mismatch between the system and components, the inability of the rubber elastic support to play an effective role, and even causing greater vibration problems. Therefore, in order to solve the above problems, the present invention provides a generator vibration reduction debugging method.

[0056] Figure 1 The flowchart of a generator vibration reduction debugging method provided by an embodiment of the present invention. Figure 1 As shown, the method includes:

[0057] S10: Obtain inertia parameters of the generator system and the dynamic stiffness of the corresponding elastic support in each direction.

[0058] In order to achieve vibration reduction debugging of the elastic support of the generator, in this embodiment, the inertia parameters of the generator system are first obtained, and the dynamic stiffness of the elastic support of the generator system in each direction is obtained. The inertia parameters mainly describe the parameters of the mass and moment of inertia characteristics of the engine system; in this embodiment, there is no restriction on the specific content and acquisition method of the inertia parameters. The dynamic stiffness of the elastic support refers to the stiffness characteristics of the support to dynamic loads in each direction, including vertical stiffness, horizontal stiffness and torsional stiffness. The dynamic stiffness of the elastic support can be directly obtained through the initial design data of the generator.

[0059] S11: Input the inertia parameters and dynamic stiffness into the pre-built dynamic simulation model of the generator elastic support system to output the multi-order natural frequencies of the generator system.

[0060] Furthermore, the inertia parameters and dynamic stiffness are input into a pre-built dynamic simulation model of the generator elastic support system to output the multi-order natural frequencies of the generator system.

[0061] It should be noted that the generator elastic support system dynamics simulation model is a mathematical model used to simulate and analyze the dynamic behavior of the generator and its elastic support system under various working conditions. The model uses computer simulation technology to predict and evaluate the vibration characteristics, response behavior and stability of the system by establishing the system's motion equations and mechanical relationships. Among them, the basic equation for natural frequency calculation is:

[0062] ;

[0063] in, is the system mass matrix, is the system damping matrix, is the system stiffness matrix. is the vector for each degree of freedom in the system, is the velocity of each degree of freedom in the system, is the acceleration of each degree of freedom in the system.

[0064] When there is no damping free vibration (ignoring damping C=0 and external force F=0), the above equation simplifies to:

[0065] ;

[0066] Assume the solution is simple harmonic oscillation , after substituting into the equation, we get the generalized eigenvalue problem:

[0067] ;

[0068] Solving the characteristic equation , and get the eigenvalue , the natural frequency of the system is .

[0069] On this basis, the acquired eigenvalues ​​are arranged from small to large, and the corresponding frequencies are called the 1st, 2nd, ... Nth order natural frequencies. In this embodiment, there is no restriction on the order of the natural frequencies output by the model. In some embodiments, it is recommended to obtain the natural frequencies of the first six orders, that is, the frequencies corresponding to the smallest six non-zero eigenvalues. , their physical meanings are: the first order (fundamental frequency), the vibration mode that is most easily excited by the system; high-order frequencies, the 2nd to 6th orders may correspond to complex vibration forms (such as torsion, high-order bending or combined modes).

[0070] S12: According to each natural frequency and dynamic stiffness, the weight value of the influence of each dynamic stiffness on each order natural frequency is evaluated.

[0071] S13: Debugging the elastic support according to each influence weight value.

[0072] Finally, based on the obtained natural frequency and dynamic stiffness, the influence of each dynamic stiffness on each order of natural frequency is evaluated, which is specifically reflected as an influence weight value, so as to facilitate debugging of the elastic support according to each influence weight value, including but not limited to adjusting the elastic parameters and replacing the elastic support.

[0073] It should be noted that in this embodiment, there is no restriction on the evaluation method of the influence weight value of each dynamic stiffness on each order of natural frequency, and there is no restriction on the specific process of debugging the elastic support according to each influence weight value, which depends on the specific implementation situation.

[0074] In this embodiment, by pre-building a dynamic simulation model of the generator elastic support system, it is only necessary to input the basic stiffness and inertia parameters of the generator system into the model to quickly calculate the natural frequency of the system, and at the same time analyze the influence of the stiffness of the elastic support in various directions on the natural frequencies of each order of the generator system, thereby facilitating the design, selection and evaluation of the elastic support, and providing accurate guidance on the adjustment of the elastic support stiffness to on-site commissioning personnel, without relying on manual experience, avoiding resonance of the system at different speeds, and efficiently solving the vibration reduction requirements and abnormal vibration problems of the generator.

[0075] Based on the above embodiments, in some embodiments, obtaining the inertia parameter of the generator system includes:

[0076] S101: Obtain the mass, center of mass position, rotation management in all directions, and installation position of elastic supports of the generator system through the three-dimensional design software corresponding to the generator system and / or by performing system inertia parameter and structural dynamics tests on the generator system.

[0077] In a specific implementation, in order to obtain the inertia parameters of the generator system, the inertia parameters of the generator system can be obtained through the three-dimensional design software corresponding to the generator system; the inertia parameters of the generator system can also be obtained by performing system inertia parameter and structural dynamics tests on the generator system.

[0078] At the same time, the inertia parameters of the generator system mainly include the mass of the generator system, the position of the center of mass, the rotation management in all directions, and the installation position of the elastic support. After obtaining the inertia parameters of the generator system, the dynamic simulation of the generator system can be carried out in combination with the basic stiffness of the generator system to obtain the natural frequency.

[0079] On the basis of the above embodiments, in some embodiments, according to each natural frequency and dynamic stiffness, the weight value of the influence of each dynamic stiffness on each order natural frequency is evaluated, including:

[0080] S121: Build a sensitivity analysis process of multi-order natural frequencies and dynamic stiffness based on the simulation optimization engine;

[0081] S122: Based on the sensitivity analysis process, the Latin hypercube sampling method is used to perform experimental design analysis to obtain the sensitivity relationship matrix between each natural frequency and each dynamic stiffness;

[0082] S123: Obtaining the influence weight value of each dynamic stiffness on each natural frequency according to the sensitivity relationship matrix diagram.

[0083] In the specific implementation, in order to obtain the weight value of the influence of each dynamic stiffness on each order of natural frequency, a sensitivity analysis process of multiple order natural frequencies and each dynamic stiffness is built based on the simulation optimization engine. The core function of the simulation optimization engine is to drive the automation of the simulation process through algorithms to achieve parameter optimization, robustness design and multidisciplinary collaborative analysis of complex engineering systems. In this embodiment, there is no restriction on the specific type of simulation optimization engine used.

[0084] Furthermore, based on the established sensitivity analysis process, the Latin Hypercube Sampling (LHS) method is used to perform the Design of Experiments (DOE) analysis to obtain the sensitivity relationship matrix diagram between each natural frequency and each dynamic stiffness. The Latin Hypercube Sampling method is a stratified sampling method for generating multidimensional random samples. It aims to improve the efficiency and accuracy of experimental design or simulation analysis by more evenly covering the parameter space. In this embodiment, there is no restriction on the specific process of performing experimental design analysis based on the Latin Hypercube Sampling method.

[0085] Finally, after completing the DOE analysis, the sensitivity relationship matrix diagram between the design variables and the results is obtained, and the influence weight value of each dynamic stiffness on each natural frequency is obtained according to the sensitivity relationship matrix diagram.

[0086] In summary, the evaluation of the influence weight values ​​of various dynamic stiffnesses on each order of natural frequency is realized, so as to facilitate the accurate debugging of elastic supports according to the influence weight values ​​in the subsequent process.

[0087] Based on the above embodiments, in some embodiments, the elastic support is debugged according to each influence weight value, including:

[0088] S131: Obtaining the influence weight value of each dynamic stiffness on each natural frequency in the sensitivity relationship matrix diagram;

[0089] S132: Determine whether each influence weight value is greater than a threshold value; if so, proceed to step S133; if not, end;

[0090] S133: Determine the elastic support corresponding to the influence weight value greater than the threshold as the target elastic support, and output prompt information representing the replacement of the target elastic support.

[0091] Figure 2 The sensitivity relationship matrix diagram provided by the embodiment of the present invention is shown in FIG. Figure 2 As shown, the sensitivity relationship matrix diagram contains the influence weight values ​​of each dynamic stiffness on each natural frequency. Among them, the vertical axis is the first six natural frequencies, and the horizontal axis is the elastic support stiffness. The darker the color, the greater the sensitivity (correlation). In order to debug the elastic support, it is necessary to determine whether each influence weight value is greater than the threshold. In this embodiment, there is no restriction on the threshold value. If it is confirmed that the influence weight value is not greater than the threshold, the judgment and debugging process is terminated. If it is confirmed that the influence weight value is greater than the threshold, the elastic support corresponding to the influence weight value greater than the threshold is determined as the target elastic support, and a prompt message representing the replacement of the target elastic support is output to facilitate maintenance personnel to replace the target elastic support according to the prompt message. The following is an example:

[0092] Figure 3 Schematic diagram of the distribution position of elastic supports provided in an embodiment of the present invention. Figure 2 and Figure 3 As shown in the figure, the resonance frequency point of the third-order natural frequency is mainly affected by the horizontal stiffness of the two elastic supports of the generator diagonal BU1 and BU4. In the actual on-site transformation verification, these two elastic supports can be replaced. In this way, the precise debugging of the elastic support of the generator is achieved.

[0093] In order to prevent the resonance that has occurred from affecting the normal operation of the generator system, based on the above embodiments, in some embodiments, before evaluating the weight value of the influence of each dynamic stiffness on each order of natural frequency according to each natural frequency and dynamic stiffness, after obtaining the multi-order natural frequencies of the generator system, it also includes:

[0094] S14: judging whether the current generator system has a resonance risk according to each natural frequency and the rated operating condition of the generator system; if not, proceeding to step S12; if yes, proceeding to step S15;

[0095] S15: Control the generator system to reduce load or shut down;

[0096] S16: Outputting prompt information indicating the resonance of the generator system.

[0097] Specifically, after obtaining the multi-order natural frequencies of the generator system, analyze the excitation frequency under rated operating conditions, compare the natural frequency of the system with the excitation frequency, and check whether there is a close or overlapping situation. Pay special attention to the relationship between the natural frequency and the rotation excitation frequency and its harmonics. If the natural frequency is close to or coincides with the excitation frequency, the system may have a resonance risk. The magnitude of the resonance risk depends on the proximity of the frequencies, the amplitude of the excitation, and the damping characteristics of the system.

[0098] If it is confirmed that there is no resonance risk, the weight value of each dynamic stiffness on each order of natural frequency is directly evaluated based on each natural frequency and dynamic stiffness. If it is confirmed that there is a resonance risk, in order to prevent the resonance from affecting the safe operation of the generator, it is necessary to control the generator system to reduce the load or shut down, and output a prompt message representing the resonance of the generator system, so as to prompt the maintenance personnel to handle it in time and ensure the safety of the generator equipment.

[0099] Based on the above embodiments, in some embodiments, if it is confirmed that the current generator system has a resonance risk, the method further includes:

[0100] S17: Perform fault diagnosis on the generator system to determine the cause of resonance of the generator system;

[0101] S18: Upload the cause of the resonance to the control center of the generator system.

[0102] Specifically, in order to further deal with the resonance of the generator system, when it is confirmed that the generator system has a resonance risk, the fault diagnosis of the generator system can be further performed to find out the cause of the vibration and take corresponding treatment measures. At the same time, an emergency plan can be formulated so that when serious vibration problems occur, measures can be taken quickly to avoid equipment damage or shutdown. Finally, the cause of the resonance is uploaded to the control center of the generator system so that the staff of the control center can promptly know the current status of the generator system and take corresponding measures to ensure the safe operation of the generator system.

[0103] Based on the above embodiments, in some embodiments, the following further includes:

[0104] S19: When the target elastic support is replaced, a performance test is performed on the new target elastic support to determine the vibration reduction performance of the new target elastic support;

[0105] S20: Determine whether the vibration reduction performance of the new target elastic support meets the preset requirements; if not, proceed to step S21; if yes, end;

[0106] S21: Analyze the reason why the vibration reduction performance does not meet the preset requirements, and debug a new target elastic support again or replace the new target elastic support according to the reason.

[0107] In a specific implementation, when the target elastic support with resonance effect is replaced, in order to ensure that the new target elastic support meets the use requirements, it is necessary to perform a performance test on the new target elastic support to determine the vibration reduction performance of the new target elastic support. In this embodiment, there is no restriction on the testing method of the vibration reduction performance of the new target elastic support.

[0108] Further determine whether the vibration reduction performance of the new target elastic support meets the preset requirements; if so, end. If not, analyze the reasons why the vibration reduction performance does not meet the preset requirements, and debug the new target elastic support again according to the reasons, or replace the new target elastic support, so as to ensure that the new target elastic support meets the actual use requirements of the generator system and ensure the normal operation of the generator system.

[0109] In the above embodiments, the generator vibration reduction and debugging method is described in detail. The present invention also provides a corresponding embodiment of the generator vibration reduction and debugging device.

[0110] Figure 4 Schematic diagram of a generator vibration reduction debugging device provided by an embodiment of the present invention. Figure 4 As shown, the device comprises:

[0111] An acquisition module 10 is used to acquire the inertia parameters of the generator system and the dynamic stiffness of the corresponding elastic support in each direction;

[0112] A simulation module 11 is used to input inertia parameters and dynamic stiffness into a pre-built dynamic simulation model of a generator elastic support system to output multiple natural frequencies of the generator system;

[0113] An evaluation module 12, for evaluating the influence weight value of each dynamic stiffness on each order of natural frequency according to each natural frequency and dynamic stiffness;

[0114] The debugging module 13 is used to debug the elastic support according to each influence weight value.

[0115] In some embodiments, the acquisition module 10 includes:

[0116] The first acquisition submodule is used to obtain the mass, center of mass position, rotation management in all directions and installation position of the elastic support of the generator system through the three-dimensional design software corresponding to the generator system and / or by performing system inertia parameters and structural dynamics tests on the generator system.

[0117] In some embodiments, the evaluation module 12 includes:

[0118] Building a module for building a sensitivity analysis process of multiple natural frequencies and dynamic stiffnesses based on the simulation optimization engine;

[0119] An analysis module is used to perform experimental design analysis based on a sensitivity analysis process using a Latin hypercube sampling method to obtain a sensitivity relationship matrix diagram between each natural frequency and each dynamic stiffness;

[0120] The second acquisition submodule is used to obtain the influence weight value of each dynamic stiffness on each natural frequency according to the sensitivity relationship matrix diagram.

[0121] In some embodiments, the debugging module 13 includes:

[0122] The third acquisition submodule is used to obtain the influence weight value of each dynamic stiffness on each natural frequency in the sensitivity relationship matrix diagram;

[0123] The first judgment module is used to judge whether each influence weight value is greater than a threshold value; if so, the elastic support corresponding to the influence weight value greater than the threshold value is determined as the target elastic support, and prompt information representing the replacement of the target elastic support is output.

[0124] In some embodiments, it also includes:

[0125] The second judgment module is used to judge whether the current generator system has a resonance risk according to each natural frequency and the rated operating condition of the generator system; if not, the evaluation module 12 is triggered; if yes, the control module is triggered;

[0126] A control module, used for controlling the generator system to reduce load or shut down;

[0127] The first output module is used to output prompt information representing the resonance of the generator system.

[0128] In some embodiments, it also includes:

[0129] A fault diagnosis module, used for performing fault diagnosis on the generator system to determine the cause of resonance of the generator system;

[0130] The upload module is used to upload the cause of the resonance to the control center of the generator system.

[0131] In some embodiments, it also includes:

[0132] A performance testing module, used for performing a performance test on the new target elastic support when the target elastic support is replaced, so as to determine the vibration reduction performance of the new target elastic support;

[0133] The third judgment module is used to judge whether the vibration reduction performance of the new target elastic support meets the preset requirements; if not, analyze the reasons why the vibration reduction performance does not meet the preset requirements, and debug the new target elastic support again according to the reasons, or replace the new target elastic support; if yes, end.

[0134] Since the embodiments of the apparatus part correspond to the embodiments of the method part, please refer to the description of the embodiments of the method part for the embodiments of the apparatus part, which will not be repeated here.

[0135] Figure 5 A schematic diagram of a generator vibration reduction debugging device provided by an embodiment of the present invention. Figure 5 As shown, the generator vibration reduction debugging equipment includes:

[0136] A memory 20, used for storing computer programs;

[0137] The processor 21 is used to implement the steps of the generator vibration reduction debugging method mentioned in the above embodiment when executing the computer program.

[0138] The generator vibration reduction debugging equipment provided in this embodiment may include but is not limited to a smart phone, a tablet computer, a laptop computer or a desktop computer.

[0139] Among them, the processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 can be implemented in at least one hardware form of a digital signal processor (DSP), a field programmable gate array (FPGA), and a programmable logic array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor is a processor for processing data in an awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 21 may be integrated with a graphics processing unit (GPU), and the GPU is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 21 may also include an artificial intelligence (AI) processor, which is used to process computing operations related to machine learning.

[0140] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used to store the following computer program 201, wherein, after the computer program is loaded and executed by the processor 21, it can implement the relevant steps of the generator vibration reduction debugging method disclosed in any of the aforementioned embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, etc., and the storage method may be temporary storage or permanent storage. Among them, the operating system 202 may include Windows, Unix, Linux, etc. Data 203 may include but is not limited to data related to the generator vibration reduction debugging method.

[0141] In some embodiments, the generator vibration reduction debugging device may further include a display screen 22 , an input / output interface 23 , a communication interface 24 , a power supply 25 , and a communication bus 26 .

[0142] Those skilled in the art will understand that Figure 5 The structure shown in the figure does not constitute a limitation on the generator vibration reduction debugging device, and may include more or fewer components than those shown in the figure.

[0143] Finally, the present invention also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps recorded in the above method embodiment are implemented.

[0144] It is understandable that if the method in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc. Various media that can store program codes.

[0145] The above is a detailed introduction to a generator vibration reduction debugging method, device, equipment and medium provided by the present invention. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the present invention.

[0146] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A generator vibration reduction debugging method, characterized in that: include: Obtain the inertia parameters of the generator system and the dynamic stiffness of the corresponding elastic support in each direction; Inputting the inertia parameter and the dynamic stiffness into a pre-built dynamic simulation model of a generator elastic support system to output multiple-order natural frequencies of the generator system; According to each of the natural frequencies and the dynamic stiffness, evaluating the influence weight value of each of the dynamic stiffnesses on each order of the natural frequencies; The elastic support is debugged according to each of the influence weight values.

2. The generator vibration reduction debugging method according to claim 1, characterized in that: Acquiring the inertia parameter of the generator system includes: The mass, center of mass position, rotation management in all directions, and installation position of the elastic support of the generator system are obtained by using the three-dimensional design software corresponding to the generator system and / or by performing system inertia parameter and structural dynamics tests on the generator system.

3. The generator vibration reduction debugging method according to claim 1, characterized in that: According to each of the natural frequencies and the dynamic stiffness, evaluating the influence weight value of each of the dynamic stiffnesses on each order of the natural frequencies includes: Building a sensitivity analysis process of multiple natural frequencies and dynamic stiffnesses based on a simulation optimization engine; Based on the sensitivity analysis process, a Latin hypercube sampling method is used to perform an experimental design analysis to obtain a sensitivity relationship matrix diagram between each of the natural frequencies and each of the dynamic stiffnesses; The influence weight values ​​of each of the dynamic stiffnesses on each of the natural frequencies are obtained according to the sensitivity relationship matrix diagram.

4. The generator vibration reduction debugging method according to claim 3, characterized in that: Debugging the elastic support according to each of the influence weight values ​​includes: Obtaining the influence weight value of each dynamic stiffness on each natural frequency in the sensitivity relationship matrix diagram; Determine whether each impact weight value is greater than a threshold value; If so, the elastic support corresponding to the influence weight value greater than the threshold is determined as the target elastic support, and prompt information representing replacement of the target elastic support is output.

5. The generator vibration reduction debugging method according to any one of claims 1 to 4, characterized in that: Before evaluating the influence weight value of each dynamic stiffness on each order of the natural frequency according to each natural frequency and the dynamic stiffness, after acquiring the multi-order natural frequencies of the generator system, the method further includes: Judging whether the current generator system has a resonance risk according to each of the natural frequencies and the rated operating condition of the generator system; If not, entering the step of evaluating the influence weight value of each dynamic stiffness on each order of the natural frequency according to each natural frequency and the dynamic stiffness; If yes, control the generator system to reduce load or shut down; Outputting prompt information indicating resonance of the generator system.

6. The generator vibration reduction debugging method according to claim 5, characterized in that: If it is confirmed that the current generator system has a resonance risk, it also includes: performing fault diagnosis on the generator system to determine a cause of resonance of the generator system; The cause of the resonance is uploaded to a control center of the generator system.

7. The generator vibration reduction debugging method according to claim 4, characterized in that: Also includes: When the target elastic support is replaced, a performance test is performed on the new target elastic support to determine the vibration reduction performance of the new target elastic support; Determining whether the vibration reduction performance of the new target elastic support meets the preset requirements; If not, the reason why the vibration reduction performance does not meet the preset requirement is analyzed, and according to the reason, a new target elastic support is debugged again, or a new target elastic support is replaced; If yes, then end.

8. A generator vibration reduction debugging device, characterized in that: include: An acquisition module, used to acquire the inertia parameters of the generator system and the dynamic stiffness of the corresponding elastic support in each direction; A simulation module, used for inputting the inertia parameter and the dynamic stiffness into a pre-built dynamic simulation model of a generator elastic support system to output multiple-order natural frequencies of the generator system; An evaluation module, used for evaluating the influence weight value of each dynamic stiffness on each order of the natural frequency according to each natural frequency and the dynamic stiffness; A debugging module is used to debug the elastic support according to each of the influence weight values.

9. A generator vibration reduction debugging device, characterized in that: include: Memory for storing computer programs; A processor is used to implement the steps of the generator vibration reduction debugging method as described in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the generator vibration reduction debugging method according to any one of claims 1 to 7 are implemented.

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