Adaptation method and device of variable frequency motor, electronic equipment and storage medium
By grouping and updating the motor database of online frequency converter motors, the shutdown problem of frequency converter motor replacement in the production line is solved, and fast and accurate adaptation and spare parts management are achieved, reducing costs.
Patent Information
- Application Number
- CN202411263644.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-02-14
AI Technical Summary
The prior art is difficult to replace variable frequency motors quickly and accurately in production lines or factories, resulting in downtime problems and high spare parts reserve costs.
By obtaining the motor database of the online frequency converter motor, grouping the databases according to the preset index items, and updating the grouping results according to the control parameters of the frequency converter, so as to quickly find the adapted spare parts when needed.
It realizes fast and accurate adaptation of frequency converter motors, reduces spare parts reserve costs, and improves the efficiency and reliability of the production line.
Smart Images
Figure CN119441549A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of variable frequency motor adaptation, and in particular to a variable frequency motor adaptation method, device, electronic equipment and storage medium. Background Art
[0002] For a production line or a factory, a large number of variable frequency motors are used, and there are many types of variable frequency motors. In view of the above two factors, it is impossible to have spare parts for each type of variable frequency motor. Once a variable frequency motor fails and needs to be disassembled and replaced, it may face a long downtime problem. With the development of modern technology, more and more motor life diagnosis equipment and methods are emerging, but the probability of motor failure is still very high. For production lines or factories, simply integrating all motors based on the principle of "same model" will result in many types of motors; integrating all motors based on the principle of "similar model" may result in errors. Summary of the invention
[0003] In view of the above technical problems, the present invention provides a variable frequency motor adaptation method, device, electronic device and storage medium, which can accurately adapt a replacement variable frequency motor and take into account the efficiency and accuracy of variable frequency motor adaptation.
[0004] The embodiment of the present invention provides the following solution:
[0005] In a first aspect, an embodiment of the present invention provides a method for adapting a variable frequency motor, the method comprising:
[0006] Acquire a motor database of an online variable frequency motor, wherein the motor database is a database composed of corresponding motor parameters of multiple different models of online variable frequency motors;
[0007] The motor database is grouped according to a plurality of preset index items to obtain an initial grouping result of all online variable frequency motors;
[0008] The initial grouping result is updated according to the control parameters of the frequency converter adapted by each online variable frequency motor to obtain the target grouping result of the online variable frequency motor;
[0009] When the variable frequency motor needs to adapt spare parts, the adaptation is searched in the target grouping results according to the motor parameters of the variable frequency motor to be adapted, so as to obtain the target adaptation result of the variable frequency motor to be adapted.
[0010] In an optional embodiment, the motor database is grouped according to a plurality of preset index items to obtain an initial grouping result of all online variable frequency motors, including:
[0011] Prioritize multiple index items to obtain an index order of the multiple index items;
[0012] The motor database is grouped according to the index order until each online variable frequency motor is divided into a corresponding index directory to obtain an initial grouping result.
[0013] In an optional embodiment, the plurality of index items include operating voltage, output shaft center height, and foot width; and the plurality of index items are prioritized to obtain an index order of the plurality of index items, including:
[0014] According to the priorities of the multiple index items, the operating voltage, the output shaft center height and the foot width are sorted in descending order to obtain the index order.
[0015] In an optional embodiment, after the motor database is grouped according to a plurality of preset index items to obtain an initial grouping result of all online variable frequency motors, the method further includes:
[0016] Power grouping of all online variable frequency motors in the initial grouping results is performed according to a preset power range to update the initial grouping results;
[0017] If the power difference of the power parameters of the same group in the updated initial grouping result is greater than the preset value, the middle power value of the power parameters of the group is determined as the standby power parameter;
[0018] If the power difference of the power parameters in the same group in the updated initial grouping result is less than or equal to the preset value, the maximum power value of the power parameters in the group is determined to be the standby power parameter.
[0019] In an optional embodiment, the initial grouping result is updated according to the control parameters of the frequency converter adapted by each online variable frequency motor to obtain the target grouping result of the online variable frequency motor, including:
[0020] According to the adaptive voltage of the frequency converter characterized by the control parameter, the working voltage grouping of each online variable frequency motor in the initial grouping result is adjusted to obtain the target grouping result.
[0021] In an optional embodiment, after obtaining the target adaptation result of the variable frequency motor to be adapted, the method further includes:
[0022] The working voltage grouping result of the target adaptation result is verified according to the adaptation voltage of the inverter, and the target grouping result is readjusted when it fails the verification.
[0023] In an optional embodiment, after obtaining the target adaptation result of the variable frequency motor to be adapted, the method further includes:
[0024] The target adaptation result is verified according to a plurality of parameter items, and the parameter items that fail the verification are marked, wherein the plurality of parameter items include an operating current, a rated speed deviation, and an output shaft center height of the adapted inverter.
[0025] In a second aspect, an embodiment of the present invention further provides an adaptation device for a variable frequency motor, the device comprising:
[0026] An acquisition module is used to acquire a motor database of an online variable frequency motor, wherein the motor database is a database composed of corresponding motor parameters of multiple different models of online variable frequency motors;
[0027] A first obtaining module is used to group the motor database according to a plurality of preset index items to obtain an initial grouping result of all online variable frequency motors;
[0028] The second obtaining module is used to update the initial grouping result according to the control parameters of the frequency converter adapted by each online variable frequency motor to obtain the target grouping result of the online variable frequency motor;
[0029] The third obtaining module is used to search for adaptation in the target grouping results according to the motor parameters of the variable frequency motor to be adapted when the variable frequency motor needs to adapt spare parts, so as to obtain the target adaptation result of the variable frequency motor to be adapted.
[0030] In a third aspect, an embodiment of the present invention further provides an electronic device, comprising a processor and a memory, wherein the memory is coupled to the processor and stores instructions, and when the instructions are executed by the processor, the electronic device executes the steps of any one of the methods in the first aspect.
[0031] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any one of the methods in the first aspect.
[0032] Compared with the prior art, the variable frequency motor adaptation method, device, electronic device and storage medium of the present invention have the following advantages:
[0033] The technical solution of the present invention obtains the motor database of the online variable frequency motor. Since the motor database is a database composed of the corresponding motor parameters of various different models of online variable frequency motors, the motor database can be grouped according to a plurality of preset index items to obtain the initial grouping results of all online variable frequency motors. The initial grouping results are updated according to the control parameters of the frequency converter adapted by each online variable frequency motor to obtain the target grouping results of the online variable frequency motor. When the variable frequency motor needs to adapt spare parts, the motor parameters of the variable frequency motor to be adapted are searched in the target grouping results to obtain the target adaptation results of the variable frequency motor to be adapted. The technical solution groups online variable frequency motors of different models and similar parameters. The spare parts reserve and procurement of the variable frequency motors no longer use exactly the same models. When there is an adaptation requirement, the replacement variable frequency motor can be quickly and accurately adapted. The adapted online variable frequency motor can meet the corresponding use requirements, taking into account the efficiency and accuracy of the variable frequency motor adaptation. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0035] Figure 1 A flow chart of a variable frequency motor adaptation method provided by an embodiment of the present invention;
[0036] Figure 2 A schematic diagram of the use arrangement of a variable frequency motor provided in an embodiment of the present invention;
[0037] Figure 3 A logical schematic diagram of a variable frequency motor adaptation method provided by an embodiment of the present invention;
[0038] Figure 4 A schematic structural diagram of an adapter device for a variable frequency motor provided in an embodiment of the present invention. DETAILED DESCRIPTION
[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention belong to the scope of protection of the embodiments of the present invention.
[0040] See also Figure 1 , Figure 1A flowchart of a variable frequency motor adaptation method provided by an embodiment of the present invention, the adaptation method can be applied to a computer or server device to implement variable frequency motor adaptation, and can solve the problem of determining the spare parts procurement model of the online variable frequency motor on the production line. The method includes:
[0041] S11. Acquire a motor database of an online variable frequency motor, wherein the motor database is a database composed of corresponding motor parameters of multiple different models of online variable frequency motors.
[0042] For details, please refer to Figure 2 , Figure 2 This is a schematic diagram of the use of variable frequency motors. The figure shows the drive control of a three-phase variable frequency motor. The variable frequency motor is driven and controlled by a frequency converter. The output shaft of the variable frequency motor is connected to the drive device, which can be various types of production line equipment. Taking the strip steel production line as an example, the drive equipment includes transmission rollers, fans, etc. The upstream and downstream of the production line involve various types of variable frequency motors. Due to differences in various factors such as manufacturers and production time, the types of variable frequency motors used are diverse. A motor database can be built based on the online variable frequency motors running on the production line, and the data can be normalized to facilitate subsequent accurate classification. Motor parameters include operating voltage, operating current, rated power, output shaft center height, and foot width. Please refer to Table 1, which shows the motor database in a list format.
[0043] Table 1:
[0044]
[0045] As an illustration, Table 1 only shows the motor parameters of 18 online variable frequency motors. Of course, the motor database can also be stored in the form of a data structure, and the corresponding motor parameters of different variable frequency motors can be characterized, and no specific limitation is made here. After obtaining the motor database of the online variable frequency motor, step S12 is entered.
[0046] S12. Grouping the motor database according to a plurality of preset index items to obtain initial grouping results of all online variable frequency motors.
[0047] Specifically, multiple index items can be set based on time requirements, such as the working voltage and installation size of the variable frequency motor. Multiple index items can be used to implement more detailed classification of online variable frequency motors in the motor database. The initial grouping result can be represented as a list, the column title bar of the list is different index items, and the row title bar of the list is the online variable frequency motor with different motor parameters. When grouping the motor database, a grouping model can be configured, and all the data in the motor database can be input into the grouping model to obtain the initial grouping result.
[0048] Exemplarily, step S12 includes sub-steps S12-1 to S12-2, which are specifically described as follows:
[0049] S12-1, prioritize multiple index items to obtain an index order of the multiple index items. Priority ranking can be performed based on the importance represented by each index item, for example, based on the importance represented by each index item, the index items are arranged in descending order, and the index items with higher importance have higher priority levels. The priority ranking results of all index items are determined as the index order.
[0050] For example, multiple index items are set to include working voltage, output shaft center height and foot width; sub-step S12-1 specifically includes: sorting the multiple index items from high to low in order of priority into working voltage, output shaft center height and foot width to obtain an index order. It can be understood that the above sorting method is based on the replacement requirements of the variable frequency motor. The working voltage is an important parameter of the variable frequency motor. If the working voltage cannot be matched, the online variable frequency motor cannot be replaced with spare parts; secondly, the output shaft center height is also of high importance, but the mismatch of this parameter can be compensated by adding gaskets and the like; similarly, the foot width can be modified through the on-site installation structure to meet the corresponding requirements for replacing the online variable frequency motor.
[0051] S12-2, group the motor database according to the index order until each online variable frequency motor is divided into the corresponding index directory to obtain the initial grouping result. The index order can make the motor database grouped more clearly, which is convenient for the subsequent variable frequency motor adaptation; it is also convenient for manual rapid review after the grouping is implemented. Please refer to Table 2, which is a list represented by the initial grouping result.
[0052] Table 2:
[0053]
[0054] Table 2 shows the results of four groups of classification. The operating voltage, output shaft center height and foot width of each group are the same, and there are some differences in speed and rated power. It should be noted that when implementing the classification of multiple index items, different deviation ranges can also be set based on the priority of the index items. For example, when the operating voltage has the highest priority, its deviation range is set to 0, followed by the deviation range of the output shaft center height of 0-20, and the deviation range of the foot width of 0-40. That is, the deviation range of each index item gradually increases from high to low based on the priority.
[0055] In practical applications, there are certain differences in the rated powers of variable frequency motors, and the implementation of grouping may result in insufficient accuracy of subsequent adaptation of parts. Based on this, in a specific implementation, after obtaining the initial grouping results of all online variable frequency motors, the adaptation method further includes:
[0056] The first step is to group all online variable frequency motors in the initial grouping result according to the preset power range to update the initial grouping result. The preset power range can be set based on actual needs, for example, it is divided incrementally in units of 80kW, the first power range is 0-80, and the second power range is 80-160kW, until all online variable frequency motors are grouped accordingly.
[0057] In the second step, if the power difference of the power parameters in the same group in the updated initial grouping result is greater than the preset value, it means that the power parameters of this type of online variable frequency motors are quite different, and the middle power value of the power parameters in this group is determined to be the standby power parameter. On the contrary, if the power difference of the power parameters in the same group in the updated initial grouping result is less than or equal to the preset value, it means that the power parameters are quite different, and the maximum power value of the power parameters in this group is determined to be the standby power parameter. It can be understood that by further grouping the power parameters, each online variable frequency motor can obtain a clearer grouping result and be accurately adapted in the future.
[0058] So far, all online variable frequency motors have been grouped and the initial grouping results have been obtained.
[0059] S13, updating the initial grouping result according to the control parameters of the frequency converter adapted to each online variable frequency motor, so as to obtain the target grouping result of the online variable frequency motor.
[0060] Specifically, the control parameter represents the applicable scope of the inverter adapted to the variable frequency motor. For example, when the working voltage of a certain online variable frequency motor is 460V, the inverter adapted to the online variable frequency motor can be driven externally at 390V and 460V. Then the grouping of the online variable frequency motor is modified, and the initial classification result after the modification is the target grouping result. Therefore, the working voltage grouping of each online variable frequency motor in the initial grouping result can be adjusted according to the adaptive voltage of the inverter represented by the control parameter. Please refer to Table 3, which is a list represented by the target grouping result.
[0061] Table 3:
[0062] Serial number Motor code Voltage Center height width Speed power Grouping Spare parts identification 1 PR-1 240 316 508 240 56 1 1 2 PR-2 240 316 508 240 56 1 3 FLT-1 390 279 457 740 112 2 4 FLT-2 390 279 457 740 112 2 5 XLP1-2 460 279 457 940 160 2 1 6 XLP1-3 460 279 457 940 134 2 7 XLP2-3 460 279 457 680 134 2 8 BR2-1 460 279 457 1500 67 3 9 BR2-2 460 279 457 1500 142 3 1 10 SOC-1 460 279 457 1500 116 3 11 SOC-2 460 279 457 1500 116 3 12 SOC-3 460 279 457 1500 116 3 13 SOC-4 460 279 457 1500 116 3 14 EUP-1 460 279 457 1500 112 3 15 EUP-2 460 279 457 1500 112 3 16 EUP-3 460 279 457 1500 112 3 17 EURP-1 460 279 457 1800 112 3 18 EURP-2 460 279 457 1800 112 3
[0063] The initial grouping results of the online variable frequency motors numbered 5-7 in Table 3 are in group 2. After updating in step S13, the target grouping results of the online variable frequency motors numbered 5-7 are in group 3. It should be noted that a more accurate target grouping result can be obtained by updating the initial grouping results through the control parameters of the inverter.
[0064] S14. When the variable frequency motor needs to adapt spare parts, searching for adaptation in the target grouping results according to the motor parameters of the variable frequency motor to be adapted, so as to obtain the target adaptation result of the variable frequency motor to be adapted.
[0065] Specifically, the variable frequency motor to be adapted can be a variable frequency motor that needs to be repaired on the production line, or a spare part based on replacing the online variable frequency motor, and no specific restrictions are made here. The variable frequency motor to be adapted also includes motor parameters corresponding to multiple index items. Based on the motor parameters, the variable frequency motor adaptation can be implemented quickly and accurately in the target grouping results, and the motor model that can replace the online variable frequency motor is determined as the target adaptation result.
[0066] In practical applications, since the same inverter can adapt to variable frequency motors with different working voltages, after implementing grouping based on the above method, there may still be problems with the accuracy of grouping. Based on this, in a specific implementation, after obtaining the target adaptation result of the variable frequency motor to be adapted, the method also includes:
[0067] The working voltage grouping result of the target adaptation result is verified according to the adaptation voltage of the frequency converter, and the target grouping result is readjusted if it fails the verification. The adaptation voltage of the frequency converter can be obtained based on the manual or nameplate parameters of the frequency converter, and whether the frequency converter motor of the target adaptation result can be driven by the corresponding frequency converter is verified based on the adaptation voltage. It can be understood that the adaptation voltage of the frequency converter usually includes multiple voltage values, such as 220V and 380V; it can also be a voltage range, such as 380-460V. If the working voltage of the target adaptation result is adapted to the grouped frequency converter, it is determined that the online frequency converter motor grouping is correct; otherwise, the working voltage of the target adaptation result cannot be adapted to the frequency converter, and the grouping of the online frequency converter motor is readjusted until the working voltage of the online frequency converter motor is adapted to the corresponding frequency converter.
[0068] For variable frequency motors, the working voltage must be adapted to meet the use requirements after replacement and installation, while other parameters can be adapted on site. In order to further make the online variable frequency motor grouping more accurate, after obtaining the target adaptation result of the variable frequency motor to be adapted, the method also includes:
[0069] The target adaptation result is verified according to multiple parameter items, and the parameter items that have not passed the verification are marked, wherein the multiple parameter items include the operating current, rated speed deviation and output shaft center height of the adapted inverter. When implementing the marking, corresponding markings can be implemented for different parameter items to improve the accuracy of identification. Please refer to Table 4, which is the target grouping result after implementing parameter verification.
[0070] Table 4:
[0071] Motor code Voltage Inverter voltage Current Inverter current Speed Center height Grouping Spare parts identification PR-1 240 460 180 264 240 316 1 1 PR-2 240 460 180 264 240 316 1 XLP1-2 460 460 258 363 940 279 2 1 XLP1-3 460 460 215 264 940 279 2 XLP2-3 460 460 215 264 680 279 2 FLT-1 390 460 218 264 740 279 2 FLT-2 390 460 218 264 740 279 2 BR2-1 460 460 106 164 1500 279 3 BR2-2 460 460 213 264 1500 279 3 1 SOC-1 460 460 178 264 1500 279 3 SOC-2 460 460 178 264 1500 279 3 SOC-3 460 460 178 264 1500 279 3 SOC-4 460 460 178 264 1500 279 3 EUP-1 460 460 174 264 1500 279 3 EUP-2 460 460 174 264 1500 279 3 EUP-3 460 460 174 264 1500 279 3 EURP-1 460 460 172 264 1800 279 3 EURP-2 460 460 172 264 1800 279 3
[0072] It should be noted that after using this method, for motors without spare parts, once a fault occurs, the accident handling time can be reduced by at least 2 hours. Assuming that a production line has a motor failure and no spare parts once every 5 years, the downtime can be reduced by 0.4 hours per time per year. The following will use specific examples to illustrate the advantages of this variable frequency motor adaptation method.
[0073] A cold rolling mill has one acid rolling line, one annealing line and two galvanizing lines. The hourly output is: the average hourly output of the acid rolling line is 300 tons / hour, the average hourly output of the annealing line is 160 tons / hour, and the average hourly output of the galvanizing line is 70 tons / hour.
[0074] Profit per ton of acid-rolled steel: 120 yuan / ton for automobile plates, 100 yuan / ton for general plates, and an average of 105 yuan / ton based on the monthly production share.
[0075] Profit per ton of steel produced: 300 yuan / ton for automobile plates, 120 yuan / ton for general plates, and 150 yuan / ton on average based on the monthly production share.
[0076] Profit per ton of galvanized steel: 1,000 yuan / ton for automotive plates, 450 yuan / ton for general plates, and an average of 600 yuan / ton based on the monthly production share.
[0077] The annual reduction in downtime losses is: acid rolling - 300 tons / hour * 0.4 hours / time * 1 time / year * 105 yuan / ton = 12,600 yuan / year; continuous annealing - 160 tons / hour * 0.4 hours / time * 1 time / year * 150 yuan / ton = 9,600 yuan / year; galvanizing - 70 tons / hour * 0.4 hours / time * 1 time / year * 600 yuan / ton * 2 = 33,600 yuan / year; a total of 55,800 yuan / year. There are about 30 to 60 large-scale variable frequency motors in a cold rolling production line. After using this method, the reserve of spare parts for such motors can be greatly reduced. If this principle is used in a larger range, the cost can be better controlled. Taking a certain acid continuous rolling production line as an example, there are about 44 large and important variable frequency motors. After using this method, purchasing 11 variable frequency motors can meet the spare needs of all motors, greatly reducing the cost of purchasing spare parts. In the context of practicing green and low-carbon concepts, optimizing spare parts procurement strategies through this method can reduce resource waste and unnecessary spare parts inventory, thereby achieving energy conservation and emission reduction. This not only helps companies reduce costs and improve competitiveness, but also actively assumes social responsibility.
[0078] After the adaptation method is implemented, the target adaptation result of the variable frequency motor to be adapted can be output as a purchase table. Please refer to Table 5, which is a purchase table obtained based on the target adaptation result.
[0079] Table 5:
[0080]
[0081] The variable frequency motor adaptation method proposed in the embodiment of the present invention is generally described below. Figure 3 , Figure 3 This is a logical diagram of the variable frequency motor adaptation method. Specifically, it includes:
[0082] S301. Input the spare motor related data as required to obtain the motor database of the online variable frequency motor.
[0083] S302, detecting the rated voltage (or working voltage) of the variable frequency motor.
[0084] S303: Determine whether the working voltage has a new value.
[0085] S304, when the working voltage has a new value, take the working voltage as the first index parameter; find all motors whose voltage is equal to this parameter to form a new set; detect the output shaft center height in this set. If there is no new value, go to step S310.
[0086] S305, determining whether there is a new value after the working voltage is grouped.
[0087] S306, using the output shaft center height as the second index parameter; finding all online variable frequency motors whose output shaft center height is equal to this parameter to form a new set; and detecting the foot width in this set.
[0088] S307, determine whether there is a new value after the output shaft center high grouping.
[0089] S308. When there is no new value in the output shaft center height group, use the foot width as the third index parameter; find all motors whose foot width is equal to this parameter to form a new set; detect the speed in this set and group the motors with 1500rpm as the boundary.
[0090] S309, dividing the motors in this group by 80KW; after the grouping is completed, if the difference between the maximum power and the minimum power in the group exceeds 50KW, the middle power motor model is used as the spare part; otherwise, the maximum power motor model is used as the spare part.
[0091] S310: When the rated voltage has no new value, determine that the grouping is finished.
[0092] S311. Output summary table.
[0093] S312, prompting manual adjustment and correction.
[0094] S313. Correction completed, entering the verification phase.
[0095] S314. Check whether the spare parts voltage is compatible with the inverter.
[0096] S315: Mark the parameter and prompt to correct it again.
[0097] S316. Whether the spare parts current is compatible with the inverter.
[0098] S317, determine whether the rotation speed deviation between the spare part and other motors in the group is less than 20%.
[0099] S318. The center height of the output shaft of the spare part is less than or equal to the center height of the output shaft of the motor in this group.
[0100] S319: Mark the parameter and give an alarm to indicate the risk of use.
[0101] S320, verification is completed and the result is output.
[0102] Based on the same technical concept as the adaptation method, the embodiment of the present invention also provides an adaptation device for a variable frequency motor, see Figure 4 , Figure 4 The schematic diagram of the structure of the adapter device is shown in FIG. The adapter device includes:
[0103] An acquisition module 401 is used to acquire a motor database of an online variable frequency motor, wherein the motor database is a database composed of corresponding motor parameters of multiple different models of online variable frequency motors;
[0104] A first obtaining module 402 is used to group the motor database according to a plurality of preset index items to obtain an initial grouping result of all online variable frequency motors;
[0105] The second obtaining module 403 is used to update the initial grouping result according to the control parameters of the frequency converter adapted by each online variable frequency motor to obtain the target grouping result of the online variable frequency motor;
[0106] The third obtaining module 404 is used to search for adaptation in the target grouping results according to the motor parameters of the variable frequency motor to be adapted when the variable frequency motor needs to adapt spare parts, so as to obtain the target adaptation result of the variable frequency motor to be adapted.
[0107] In an optional embodiment, the first obtaining module includes:
[0108] A first obtaining submodule is used to prioritize the multiple index items to obtain an index order of the multiple index items;
[0109] The grouping submodule is used to group the motor database according to the index order until each online variable frequency motor is divided into a corresponding index directory to obtain an initial grouping result.
[0110] In an optional embodiment, the plurality of index items include operating voltage, output shaft center height and foot width; and the first obtaining submodule includes:
[0111] The obtaining unit is used to sort the plurality of index items into operating voltage, output shaft center height and foot width in descending order according to their priorities, so as to obtain the index order.
[0112] In an optional embodiment, the adapting device further includes:
[0113] An updating module, used for power grouping all online variable frequency motors of the initial grouping result according to a preset power range, so as to update the initial grouping result;
[0114] A first determining module, configured to determine, when a power difference value of power parameters in the same group in the updated initial grouping result is greater than a preset value, an intermediate power value of the power parameters in the group as a standby power parameter;
[0115] The second determining module is used to determine the maximum power value of the power parameter group as the standby power parameter when the power difference value of the power parameters in the same group in the updated initial grouping result is less than or equal to the preset value.
[0116] In an optional embodiment, the second obtaining module includes:
[0117] The second obtaining submodule is used to adjust the working voltage grouping of each online variable frequency motor in the initial grouping result according to the adaptive voltage of the frequency converter characterized by the control parameter, so as to obtain the target grouping result.
[0118] In an optional embodiment, the adapting device further includes:
[0119] The first verification module is used to verify the working voltage grouping result of the target adaptation result according to the adaptation voltage of the inverter, and readjust the target grouping result if it fails the verification.
[0120] In an optional embodiment, the adapting device further includes:
[0121] The second verification module is used to verify the target adaptation result according to multiple parameter items and mark the parameter items that have not passed the verification, wherein the multiple parameter items include the operating current, rated speed deviation and output shaft center height of the adapted inverter.
[0122] Based on the same technical concept as the adaptation method, an embodiment of the present invention also provides an electronic device, including a processor and a memory, wherein the memory is coupled to the processor and stores instructions, and when the instructions are executed by the processor, the electronic device executes the steps of any one of the methods in the adaptation method.
[0123] Based on the same technical concept as the adaptation method, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of any one of the adaptation methods are implemented.
[0124] The technical solution provided in the embodiments of the present invention has at least the following technical effects or advantages:
[0125] By obtaining the motor database of the online variable frequency motor, since the motor database is a database composed of the corresponding motor parameters of various different models of online variable frequency motors; the motor database can be grouped according to multiple preset index items to obtain the initial grouping results of all online variable frequency motors; the initial grouping results can be updated according to the control parameters of the inverter adapted by each online variable frequency motor, and the target grouping results of the online variable frequency motor can be obtained; when the variable frequency motor needs to adapt spare parts, the adaptation is searched in the target grouping results according to the motor parameters of the variable frequency motor to be adapted, so as to obtain the target adaptation result of the variable frequency motor to be adapted. This technical solution groups online variable frequency motors of different models and similar parameters, and the spare parts reserve and procurement of variable frequency motors no longer use exactly the same models. When there is an adaptation requirement, the replacement variable frequency motor can be quickly and accurately adapted, and the adapted online variable frequency motor can meet the corresponding use requirements, taking into account the efficiency and accuracy of the variable frequency motor adaptation.
[0126] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0127] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (modules, systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.
[0128] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.
[0129] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.
[0130] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.
[0131] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A method for adapting a variable frequency motor, characterized in that: The method comprises: Acquire a motor database of an online variable frequency motor, wherein the motor database is a database composed of corresponding motor parameters of multiple different models of online variable frequency motors; The motor database is grouped according to a plurality of preset index items to obtain an initial grouping result of all online variable frequency motors; The initial grouping result is updated according to the control parameters of the frequency converter adapted by each online variable frequency motor to obtain the target grouping result of the online variable frequency motor; When the variable frequency motor needs to adapt spare parts, the adaptation is searched in the target grouping results according to the motor parameters of the variable frequency motor to be adapted, so as to obtain the target adaptation result of the variable frequency motor to be adapted.
2. The frequency conversion motor adaptation method according to claim 1, characterized in that: The motor database is grouped according to a plurality of preset index items to obtain an initial grouping result of all online variable frequency motors, including: Prioritizing the multiple index items to obtain an index order of the multiple index items; The motor database is grouped according to the index order until each online variable frequency motor is divided into a corresponding index directory to obtain the initial grouping result.
3. The frequency conversion motor adaptation method according to claim 2, characterized in that: The multiple index items include operating voltage, output shaft center height and foot width; the priority sorting of the multiple index items to obtain the index order of the multiple index items includes: According to the priorities of the multiple index items, they are sorted in descending order as operating voltage, output shaft center height and ground pin width to obtain the index order.
4. The frequency conversion motor adaptation method according to claim 1, characterized in that: After the motor database is grouped according to the preset multiple index items to obtain the initial grouping result of all online variable frequency motors, the method further includes: Power grouping of all online variable frequency motors in the initial grouping result is performed according to a preset power range to update the initial grouping result; If the power difference of the power parameters of the same group in the updated initial grouping result is greater than the preset value, the middle power value of the power parameters of the group is determined as the standby power parameter; If the power difference of the power parameters in the same group in the updated initial grouping result is less than or equal to the preset value, the maximum power value of the power parameters in the group is determined to be the standby power parameter.
5. The frequency conversion motor adaptation method according to claim 1, characterized in that: The updating of the initial grouping result according to the control parameters of the frequency converter adapted by each online variable frequency motor to obtain the target grouping result of the online variable frequency motor includes: According to the adaptive voltage of the frequency converter characterized by the control parameter, the working voltage grouping of each online variable frequency motor in the initial grouping result is adjusted to obtain the target grouping result.
6. The frequency conversion motor adaptation method according to claim 1, characterized in that: After obtaining the target adaptation result of the variable frequency motor to be adapted, the method further includes: The working voltage grouping result of the target adaptation result is verified according to the adaptation voltage of the frequency converter, and the target grouping result is readjusted when it fails the verification.
7. The frequency conversion motor adaptation method according to claim 1, characterized in that: After obtaining the target adaptation result of the variable frequency motor to be adapted, the method further includes: The target adaptation result is verified according to a plurality of parameter items, and the parameter items that fail the verification are marked, wherein the plurality of parameter items include an operating current, a rated speed deviation, and an output shaft center height of the adapted frequency converter.
8. An adapter device for a variable frequency motor, characterized in that: The device comprises: An acquisition module, used for acquiring a motor database of an online variable frequency motor, wherein the motor database is a database composed of corresponding motor parameters of multiple different models of online variable frequency motors; A first obtaining module, used for grouping the motor database according to a plurality of preset index items to obtain an initial grouping result of all online variable frequency motors; A second obtaining module is used to update the initial grouping result according to the control parameters of the frequency converter adapted by each online variable frequency motor to obtain the target grouping result of the online variable frequency motor; The third obtaining module is used to search for adaptation in the target grouping results according to the motor parameters of the variable frequency motor to be adapted when the variable frequency motor needs to adapt spare parts, so as to obtain the target adaptation result of the variable frequency motor to be adapted.
9. An electronic device, characterized in that: The electronic device comprises a processor and a memory, wherein the memory is coupled to the processor and stores instructions, and when the instructions are executed by the processor, the electronic device executes the steps of the method according to any one of claims 1 to 7.
10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method described in any one of claims 1 to 7 are implemented.