Permanent magnet alternating current servo motor rotor mechanical energy conversion loss suppression method and system

Abstract

The invention provides a permanent magnet alternating current servo motor rotor mechanical energy conversion loss suppression method and system. The permanent magnet alternating current servo motor rotor mechanical energy conversion loss suppression method comprises the steps of collecting operation parameter data in the operation process of a permanent magnet alternating current servo motor in real time; according to the operation parameter data in the operation process of the permanent magnet alternating current servo motor, whether the mechanical energy conversion loss amount generated by current operation of the permanent magnet alternating current servo motor meets a preset mechanical energy loss requirement or not is judged; and when the mechanical energy conversion loss generated by the operation of the permanent magnet alternating current servo motor does not meet the preset mechanical energy loss requirement, automatically adjusting the operation parameter data in the operation process of the permanent magnet alternating current servo motor according to the load change. The system comprises modules corresponding to the steps of the method.

Description

Technical Field

[0001] The invention provides a method and system for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor, belonging to the technical field of motor loss suppression. Background Art

[0002] As an efficient and precise drive device, permanent magnet AC servo motors are widely used in CNC machine tools, industrial robots, astronomical telescopes, radars and other fields. This type of motor has the advantages of high control accuracy, fast response speed and high degree of automation, but the problem of mechanical energy conversion loss during its operation has always been one of the key factors restricting its performance improvement and expansion of its application range. During the operation of permanent magnet AC servo motors, mechanical energy conversion losses mainly come from the interaction between the electromagnetic field and the mechanical system, the friction inside the motor, and the changes in material properties with temperature and environmental conditions. Traditional motor design often ignores the interaction between these complex factors, resulting in a significant increase in the mechanical energy conversion loss of the motor in practical applications, especially under extreme conditions such as high speed and high power density, which in turn affects the efficiency and reliability of the motor. Summary of the invention

[0003] The present invention provides a method and system for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor to solve the above technical problems existing in the prior art. The technical solutions adopted are as follows:

[0004] A method for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor, the method comprising:

[0005] Real-time collection of operating parameter data of permanent magnet AC servo motor during operation;

[0006] Determining whether the amount of mechanical energy conversion loss generated by the current operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement according to the operating parameter data during the operation of the permanent magnet AC servo motor;

[0007] When the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the operating parameter data of the permanent magnet AC servo motor during operation is automatically adjusted according to the load change.

[0008] Furthermore, the operating parameter data of the permanent magnet AC servo motor during operation is collected in real time, including:

[0009] Extracting the operating parameter data to be collected and its corresponding data collection frequency, wherein the operating parameter data includes speed data, torque data and vibration data;

[0010] During the operation of the permanent magnet AC servo motor, the speed data, torque data and vibration data are collected in real time according to the data collection frequencies corresponding to the speed data, torque data and vibration data.

[0011] Further, judging whether the amount of mechanical energy conversion loss generated by the current operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement according to the operation parameter data of the permanent magnet AC servo motor during operation, includes:

[0012] Extracting speed standard data, torque standard data and vibration data standard data corresponding to the speed data, torque data and vibration data;

[0013] Real-time monitoring of the speed deviation, torque deviation and vibration deviation between the current speed data, torque data and vibration data and their corresponding speed standard data, torque standard data and vibration standard data;

[0014] The speed deviation, torque deviation and vibration deviation are used to determine whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

[0015] Further, the speed deviation, torque deviation and vibration deviation are used to determine whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement, including:

[0016] Extracting the speed deviation, torque deviation and vibration deviation;

[0017] The speed deviation, torque deviation and vibration deviation are used to obtain a mechanical energy conversion loss evaluation coefficient; wherein the mechanical energy conversion loss evaluation coefficient is obtained by the following formula:

[0018]

[0019] Wherein, W represents the mechanical energy conversion loss evaluation coefficient; V, T and D represent the speed deviation, torque deviation and vibration deviation respectively; N represents the adjustment coefficient, and the adjustment coefficient is obtained by the following formula:

[0020]

[0021] Wherein, N represents the adjustment coefficient; a, b and c represent the weight coefficients corresponding to the speed data, torque data and vibration data respectively; V max , T max and D max Respectively represent the maximum speed data, the maximum torque data and the maximum vibration data; V b , T b and D bRespectively represent the speed standard data, torque standard data and vibration data standard data;

[0022] Comparing the mechanical energy conversion loss evaluation coefficient with a preset loss evaluation coefficient threshold;

[0023] When the mechanical energy conversion loss evaluation coefficient exceeds the preset loss evaluation coefficient threshold, it is determined that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement; otherwise, it is determined that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

[0024] Furthermore, when the mechanical energy conversion loss amount generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the operating parameter data of the permanent magnet AC servo motor during operation is automatically adjusted according to the load change, including:

[0025] When the mechanical energy conversion loss amount generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the speed data of the permanent magnet AC servo motor during operation is automatically adjusted according to the load change in combination with the mechanical energy conversion loss evaluation coefficient to obtain the adjusted speed data;

[0026] The adjusted speed data is obtained by the following formula:

[0027]

[0028] Among them, V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max Indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor;

[0029] When the mechanical energy conversion loss amount generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the torque data during the operation of the permanent magnet AC servo motor is automatically adjusted according to the load change in combination with the mechanical energy conversion loss evaluation coefficient to obtain the adjusted torque data;

[0030] The adjusted torque data is obtained by the following formula:

[0031]

[0032] Among them, T t Indicates the adjusted torque data; T x Indicates the torque data before adjustment; V tIndicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max It indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor.

[0033] A permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system, the permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system comprising:

[0034] A real-time acquisition module is used to collect the operating parameter data of the permanent magnet AC servo motor in real time during its operation;

[0035] A loss judgment module is used to judge whether the mechanical energy conversion loss amount generated by the current operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement according to the operation parameter data of the permanent magnet AC servo motor during operation;

[0036] The automatic adjustment module is used to automatically adjust the operating parameter data of the permanent magnet AC servo motor during operation according to load changes when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirements.

[0037] Furthermore, the real-time acquisition module includes:

[0038] A frequency extraction module, used to extract the operating parameter data to be collected and its corresponding data collection frequency, wherein the operating parameter data includes speed data, torque data and vibration data;

[0039] The data acquisition module is used to collect speed data, torque data and vibration data in real time according to the data acquisition frequency corresponding to the speed data, torque data and vibration data during the operation of the permanent magnet AC servo motor.

[0040] Furthermore, the loss judgment module includes:

[0041] A standard data extraction module, used to extract speed standard data, torque standard data and vibration data standard data corresponding to the speed data, torque data and vibration data;

[0042] A deviation acquisition module is used to monitor in real time the speed deviation, torque deviation and vibration deviation between the current speed data, torque data and vibration data and their corresponding speed standard data, torque standard data and vibration standard data;

[0043] The judgment execution module is used to use the speed deviation, torque deviation and vibration deviation to obtain whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

[0044] Furthermore, the judgment execution module includes:

[0045] A deviation extraction module, used to extract the speed deviation, torque deviation and vibration deviation;

[0046] The mechanical energy conversion loss evaluation coefficient acquisition module is used to obtain the mechanical energy conversion loss evaluation coefficient by using the speed deviation, torque deviation and vibration deviation; wherein the mechanical energy conversion loss evaluation coefficient is obtained by the following formula:

[0047]

[0048] Wherein, W represents the mechanical energy conversion loss evaluation coefficient; V, T and D represent the speed deviation, torque deviation and vibration deviation respectively; N represents the adjustment coefficient, and the adjustment coefficient is obtained by the following formula:

[0049]

[0050] Wherein, N represents the adjustment coefficient; a, b and c represent the weight coefficients corresponding to the speed data, torque data and vibration data respectively; V max , T max and D max Respectively represent the maximum speed data, the maximum torque data and the maximum vibration data; V b , T b and D b Respectively represent the speed standard data, torque standard data and vibration data standard data;

[0051] A coefficient comparison module, used for comparing the mechanical energy conversion loss evaluation coefficient with a preset loss evaluation coefficient threshold;

[0052] The demand determination module is used to determine that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement when the mechanical energy conversion loss evaluation coefficient exceeds the preset loss evaluation coefficient threshold; otherwise, it is used to determine that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

[0053] Furthermore, the automatic adjustment module includes:

[0054] A speed adjustment module, which is used to automatically adjust the speed data of the permanent magnet AC servo motor during operation according to the load change in combination with the mechanical energy conversion loss evaluation coefficient when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, so as to obtain the adjusted speed data;

[0055] The adjusted speed data is obtained by the following formula:

[0056]

[0057] Among them, V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max Indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor;

[0058] A torque adjustment module, which is used to automatically adjust the torque data during the operation of the permanent magnet AC servo motor according to the load change in combination with the mechanical energy conversion loss evaluation coefficient when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, so as to obtain the adjusted torque data;

[0059] The adjusted torque data is obtained by the following formula:

[0060]

[0061] Among them, T t Indicates the adjusted torque data; T x Indicates the torque data before adjustment; V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max It indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor.

[0062] Beneficial effects of the present invention:

[0063] The method and system for suppressing mechanical energy conversion loss of the permanent magnet AC servo motor rotor proposed in the present invention can significantly reduce the loss in the mechanical energy conversion process by real-time monitoring and adjusting the operating parameters of the motor, thereby improving the overall efficiency of the motor. This helps to reduce energy consumption and reduce operating costs. The automatic adjustment function can respond in real time according to load changes to ensure that the motor can operate stably under various working conditions. This helps to reduce motor failures and downtime caused by load fluctuations. By reducing the mechanical energy conversion loss, the friction and wear inside the motor can be reduced, thereby extending the service life of the motor. This helps to reduce maintenance costs and the frequency of replacing motors. The technical solution can be integrated with other control systems (such as PLC, frequency converter, etc.) to achieve a higher level of automated control and optimization. This helps to improve the performance and reliability of the entire system and meet a wider range of application needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 is a flow chart of the method of the present invention;

[0065] Figure 2 The system block diagram of the system of the present invention. DETAILED DESCRIPTION

[0066] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0067] The embodiment of the present invention provides a method for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor, such as Figure 1 As shown, the method for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor includes:

[0068] S1, real-time collection of operating parameter data of the permanent magnet AC servo motor during operation;

[0069] S2. judging whether the mechanical energy conversion loss generated by the current operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement according to the operation parameter data of the permanent magnet AC servo motor during operation;

[0070] S3. When the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the operating parameter data of the permanent magnet AC servo motor during operation is automatically adjusted according to the load change.

[0071] The working principle of the above technical solution is: through built-in sensors or external measuring devices, the key parameter data of the permanent magnet AC servo motor during operation, such as current, voltage, speed, temperature and load conditions, are collected in real time. These data are the basis for subsequent analysis and judgment of the mechanical energy conversion loss of the motor. Using advanced algorithms or models, the mechanical energy conversion loss generated by the current operation of the permanent magnet AC servo motor is calculated or estimated based on the real-time collected operating parameter data. The calculated loss is compared with the preset mechanical energy loss requirements to determine whether the current operating state of the motor meets the expected loss standard. When the judgment result shows that the mechanical energy conversion loss of the motor does not meet the preset requirements, the system will automatically adjust the operating parameters of the motor according to the load changes. These adjustments may include changing the current waveform, optimizing the opening angle, adjusting the voltage level or speed, etc., to reduce torque fluctuations, reduce losses and improve the overall efficiency of the motor.

[0072] The effect of the above technical solution is: by real-time monitoring and adjusting the operating parameters of the motor, the loss in the mechanical energy conversion process can be significantly reduced, thereby improving the overall efficiency of the motor. This helps to reduce energy consumption and reduce operating costs. The automatic adjustment function can respond in real time according to load changes to ensure that the motor can operate stably under various working conditions. This helps to reduce motor failures and downtime caused by load fluctuations. By reducing the loss of mechanical energy conversion, the friction and wear inside the motor can be reduced, thereby extending the service life of the motor. This helps to reduce maintenance costs and the frequency of motor replacement. This technical solution can be integrated with other control systems (such as PLC, inverter, etc.) to achieve a higher level of automated control and optimization. This helps to improve the performance and reliability of the entire system and meet a wider range of application needs.

[0073] In summary, this technical solution achieves effective suppression of mechanical energy conversion losses by real-time monitoring and adjustment of the operating parameters of the permanent magnet AC servo motor, improves the efficiency, stability and life of the motor, and enhances the performance of the entire system.

[0074] In one embodiment of the present invention, real-time acquisition of operating parameter data of a permanent magnet AC servo motor during operation includes:

[0075] S101, extracting the operating parameter data to be collected and its corresponding data collection frequency, wherein the operating parameter data includes speed data, torque data and vibration data;

[0076] S102 . During the operation of the permanent magnet AC servo motor, the speed data, torque data and vibration data are collected in real time according to the data collection frequencies corresponding to the speed data, torque data and vibration data.

[0077] The working principle of the above technical solution is as follows: First, according to the characteristics and application requirements of the permanent magnet AC servo motor, the operating parameter data that need to be collected are extracted. These parameter data include speed data, torque data and vibration data. Then, the corresponding data collection frequency is set for each parameter data. The setting of the data collection frequency needs to be determined according to the operating condition of the motor, the speed of data change and the needs of subsequent data analysis. Ensure that the required data can be accurately collected according to the set frequency during the operation of the motor. During the operation of the permanent magnet AC servo motor, sensors or data acquisition devices are used to collect speed data, torque data and vibration data in real time according to the previously set data acquisition frequency. The collected data will be stored in a designated storage device or database for subsequent data analysis and processing.

[0078] The effect of the above technical solution is: by real-time acquisition and storage of motor operating parameter data, the accuracy and integrity of the data can be ensured. This helps to accurately evaluate and optimize the motor performance in the future. The real-time data acquisition function can realize real-time monitoring of the motor's operating status, and timely discover and handle abnormal situations. This helps to prevent motor failures and improve the stability and reliability of the system. By analyzing the collected speed data, torque data and vibration data, the operating status and performance characteristics of the motor can be understood. Then the motor can be optimized and adjusted, such as adjusting the control strategy, improving the structural design, etc., to improve the efficiency and performance of the motor. The collected data can also be used for motor fault diagnosis. By analyzing and processing the data, the possible fault types and fault locations of the motor can be identified, providing strong support for maintenance and replacement. The technical solution can be combined with an intelligent control system to realize intelligent monitoring and control of motor operation. This helps to improve the intelligence level of the entire system, improve production efficiency and product quality.

[0079] In summary, this technical solution provides strong support for motor performance evaluation, optimization adjustment, fault diagnosis and intelligent control by real-time collection of permanent magnet AC servo motor operating parameter data.

[0080] In one embodiment of the present invention, judging whether the amount of mechanical energy conversion loss generated by the current operation of the permanent magnet AC servo motor meets a preset mechanical energy loss requirement based on the operation parameter data of the permanent magnet AC servo motor during operation includes:

[0081] S201, extracting speed standard data, torque standard data and vibration data standard data corresponding to the speed data, torque data and vibration data;

[0082] S202, real-time monitoring of the speed deviation, torque deviation and vibration deviation between the current speed data, torque data and vibration data and the corresponding speed standard data, torque standard data and vibration standard data;

[0083] S203: Using the speed deviation, torque deviation and vibration deviation, determine whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets a preset mechanical energy loss requirement.

[0084] The working principle of the above technical solution is as follows: first, the speed standard data, torque standard data and vibration data standard data corresponding to the current permanent magnet AC servo motor operating parameters are extracted from the preset standard database. These standard data are usually set based on comprehensive considerations such as the motor's design parameters, historical operating data and industry standards. During the operation of the motor, the current speed data, torque data and vibration data are monitored in real time and compared with the extracted standard data. The speed deviation, torque deviation and vibration deviation between the current data and the standard data are calculated. These deviations reflect the degree of deviation between the motor operating parameters and the standard state. Using the calculated speed deviation, torque deviation and vibration deviation, combined with a preset loss evaluation model or algorithm, it is comprehensively judged whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirements. The loss evaluation model or algorithm usually takes into account factors such as the motor's structural characteristics, working principle and operating environment, and can more accurately reflect the motor's loss situation.

[0085] The effect of the above technical solution is: by real-time monitoring of the motor operating parameters and comparing and analyzing them with standard data, it is possible to more accurately determine whether the mechanical energy conversion loss during the motor operation meets the requirements. This helps to promptly discover potential loss problems and take corresponding measures to improve them. The real-time monitoring function can realize real-time tracking and evaluation of the motor operating status, and promptly discover and handle abnormal situations. This helps to prevent motor failures and improve the stability and reliability of the system. By real-time monitoring and analysis of the motor operating parameters, the operating status and performance characteristics of the motor can be understood. Then the motor can be optimized and adjusted, such as adjusting the control strategy, improving the structural design, etc., to improve the efficiency and performance of the motor. This technical solution can be combined with an intelligent control system to realize intelligent monitoring and evaluation of motor operation. This helps to improve the intelligence level of the entire system, improve production efficiency and product quality.

[0086] In summary, this technical solution can accurately determine whether the mechanical energy conversion loss during the operation of the motor meets the requirements by real-time monitoring of the operating parameters of the permanent magnet AC servo motor and comparing and analyzing them with standard data. This helps to timely discover and deal with potential loss problems and improve the performance and reliability of the motor.

[0087] In one embodiment of the present invention, the speed deviation, torque deviation and vibration deviation are used to determine whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement, including:

[0088] S2031, extracting the speed deviation, torque deviation and vibration deviation;

[0089] S2032. Obtain a mechanical energy conversion loss evaluation coefficient using the speed deviation, torque deviation, and vibration deviation; wherein the mechanical energy conversion loss evaluation coefficient is obtained by the following formula:

[0090]

[0091] Wherein, W represents the mechanical energy conversion loss evaluation coefficient; V, T and D represent the speed deviation, torque deviation and vibration deviation respectively; N represents the adjustment coefficient, and the adjustment coefficient is obtained by the following formula:

[0092]

[0093] Wherein, N represents the adjustment coefficient; a, b and c represent the weight coefficients corresponding to the speed data, torque data and vibration data respectively; V max , T max and D max Respectively represent the maximum speed data, the maximum torque data and the maximum vibration data; V b , T b and D b Respectively represent the speed standard data, torque standard data and vibration data standard data;

[0094] S2033, comparing the mechanical energy conversion loss evaluation coefficient with a preset loss evaluation coefficient threshold;

[0095] S2034. When the mechanical energy conversion loss evaluation coefficient exceeds the preset loss evaluation coefficient threshold, it is determined that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement; otherwise, it is determined that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

[0096] The working principle of the above technical solution is: extract the speed deviation, torque deviation and vibration deviation from the real-time monitored motor operating parameters. These deviations reflect the degree of deviation between the actual motor operating parameters and the standard parameters. The mechanical energy conversion loss evaluation coefficient W is calculated using the extracted deviation, combined with the preset formula and weight coefficient. This coefficient is a comprehensive evaluation index used to quantify the mechanical energy conversion loss during the operation of the motor. The adjustment coefficient N in the formula is calculated by another formula, which takes into account the weight coefficients a, b, c corresponding to the speed data, torque data and vibration data, as well as the maximum values ​​Vmax, Tmax, Dmax and standard values ​​Vb, Tb, Db of these data. The setting of these weight coefficients and maximum and standard values ​​is usually based on comprehensive considerations such as the design parameters of the motor, historical operating data and industry standards. The calculated mechanical energy conversion loss evaluation coefficient W is compared with the preset loss evaluation coefficient threshold. If W exceeds the threshold, it is determined that the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirements; otherwise, it is determined that the requirements are met.

[0097] The effect of the above technical solution is: by comprehensively considering the speed deviation, torque deviation and vibration deviation, as well as their corresponding weight coefficients and maximum and standard values, the mechanical energy conversion loss during the operation of the motor can be more accurately evaluated. This helps to improve the precision and accuracy of the judgment. The real-time monitoring function can realize real-time tracking and evaluation of the motor operation status, timely detect abnormal conditions and handle them. This helps to prevent motor failures and improve the stability and reliability of the system. Through real-time monitoring and evaluation of mechanical energy conversion losses, the trend of motor performance degradation or loss increase can be discovered in time, and then the motor can be optimized and adjusted, such as adjusting the control strategy, improving the structural design, etc., to improve the efficiency and performance of the motor. The technical solution can be combined with an intelligent control system to realize intelligent monitoring and evaluation of motor operation. This helps to improve the intelligence level of the entire system, improve production efficiency and product quality. By judging whether the mechanical energy conversion loss meets the requirements, a decision-making basis can be provided for the maintenance and maintenance of the motor. When the loss evaluation coefficient exceeds the threshold, maintenance measures can be taken in time to avoid damage to the motor due to long-term high-loss operation.

[0098] In summary, this technical solution can accurately determine whether the mechanical energy conversion loss during the operation of the motor meets the requirements by real-time monitoring and analysis of the operating parameters of the permanent magnet AC servo motor, combined with the preset formula and weight coefficient. This helps to timely discover and deal with potential loss problems, improve the performance and reliability of the motor, and provide a decision-making basis for the maintenance and care of the motor.

[0099] In one embodiment of the present invention, when the mechanical energy conversion loss amount generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the operating parameter data of the permanent magnet AC servo motor during operation is automatically adjusted according to the load change, including:

[0100] S301. When the mechanical energy conversion loss amount generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the speed data of the permanent magnet AC servo motor during operation is automatically adjusted according to the load change in combination with the mechanical energy conversion loss evaluation coefficient to obtain the adjusted speed data;

[0101] The adjusted speed data is obtained by the following formula:

[0102]

[0103] Among them, V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max Indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor;

[0104] S302, when the mechanical energy conversion loss amount generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, automatically adjusting the torque data during the operation of the permanent magnet AC servo motor according to the load change in combination with the mechanical energy conversion loss evaluation coefficient to obtain adjusted torque data;

[0105] The adjusted torque data is obtained by the following formula:

[0106]

[0107] Among them, T t Indicates the adjusted torque data; T x Indicates the torque data before adjustment; V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max It indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor.

[0108] The working principle of the above technical solution is: when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirements, the system will first obtain the current mechanical energy conversion loss evaluation coefficient W. The evaluation coefficient W is obtained by real-time monitoring of the motor's speed deviation, torque deviation and vibration deviation, and is calculated in combination with a preset formula and weight coefficient. According to the obtained mechanical energy conversion loss evaluation coefficient W, and the allowable complexity L corresponding to the current load change (compared with the maximum allowable complexity Lmax), the system will automatically adjust the speed data of the permanent magnet AC servo motor. The adjusted speed data Vt is calculated by a preset formula, which takes into account the speed data Vx before adjustment, the mechanical energy conversion loss evaluation coefficient W, the current allowable complexity L and the maximum allowable complexity Lmax. By adjusting the speed data, the system aims to optimize the running state of the motor and reduce the mechanical energy conversion loss. Similar to the speed data adjustment, when the mechanical energy conversion loss does not meet the requirements, the system will also automatically adjust the torque data of the permanent magnet AC servo motor. The adjusted torque data Tt is calculated by another preset formula, which takes into account the torque data Tx before adjustment, the speed data Vt after adjustment, the speed data Vx before adjustment, the mechanical energy conversion loss evaluation coefficient W, the current allowable complexity L and the maximum allowable complexity Lmax. By adjusting the torque data, the system further optimizes the running state of the motor to ensure that the mechanical energy conversion loss meets the preset requirements.

[0109] The effect of the above technical solution is: by real-time monitoring and evaluation of mechanical energy conversion loss, and automatically adjusting the motor's operating parameter data according to load changes, the system can ensure that the motor operates in an efficient and stable state. This helps to reduce unnecessary energy loss and improve the motor's energy efficiency ratio, thereby saving energy and reducing production costs. The automatic adjustment function can achieve real-time tracking and response to the motor's operating status, and timely adjust the motor's operating parameters to adapt to load changes. This helps to enhance the stability and reliability of the system and reduce production interruptions caused by motor failure or performance degradation. By accurately adjusting the motor's speed and torque data, the system can optimize the motor's performance. This helps to improve the motor's response speed, control accuracy and load capacity, thereby meeting a wider range of application requirements. The technical solution combines technical means such as real-time monitoring, automatic adjustment and intelligent control to achieve intelligent management of the permanent magnet AC servo motor's operating status. This helps to improve the intelligence level of the entire system, improve production efficiency and product quality. By real-time monitoring and evaluation of the motor's operating status, the system can promptly detect potential failures or performance degradation trends. This helps to take maintenance measures in advance to avoid damage to the motor due to long-term high-loss operation, thereby reducing maintenance costs.

[0110] In summary, this technical solution achieves intelligent management and optimization of the motor's operating status by real-time monitoring and evaluation of the mechanical energy conversion loss of the permanent magnet AC servo motor and automatically adjusting the motor's operating parameter data according to load changes. This helps to improve the motor's energy efficiency, stability and performance, reduce maintenance costs, and enhance the intelligence level of the entire system.

[0111] The embodiment of the present invention provides a permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system, such as Figure 2 As shown, the permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system comprises:

[0112] A real-time acquisition module is used to collect the operating parameter data of the permanent magnet AC servo motor in real time during its operation;

[0113] A loss judgment module is used to judge whether the mechanical energy conversion loss amount generated by the current operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement according to the operation parameter data of the permanent magnet AC servo motor during operation;

[0114] The automatic adjustment module is used to automatically adjust the operating parameter data of the permanent magnet AC servo motor during operation according to load changes when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirements.

[0115] The working principle of the above technical solution is: through built-in sensors or external measuring devices, the key parameter data of the permanent magnet AC servo motor during operation, such as current, voltage, speed, temperature and load conditions, are collected in real time. These data are the basis for subsequent analysis and judgment of the mechanical energy conversion loss of the motor. Using advanced algorithms or models, the mechanical energy conversion loss generated by the current operation of the permanent magnet AC servo motor is calculated or estimated based on the real-time collected operating parameter data. The calculated loss is compared with the preset mechanical energy loss requirements to determine whether the current operating state of the motor meets the expected loss standard. When the judgment result shows that the mechanical energy conversion loss of the motor does not meet the preset requirements, the system will automatically adjust the operating parameters of the motor according to the load changes. These adjustments may include changing the current waveform, optimizing the opening angle, adjusting the voltage level or speed, etc., to reduce torque fluctuations, reduce losses and improve the overall efficiency of the motor.

[0116] The effect of the above technical solution is: by real-time monitoring and adjusting the operating parameters of the motor, the loss in the mechanical energy conversion process can be significantly reduced, thereby improving the overall efficiency of the motor. This helps to reduce energy consumption and reduce operating costs. The automatic adjustment function can respond in real time according to load changes to ensure that the motor can operate stably under various working conditions. This helps to reduce motor failures and downtime caused by load fluctuations. By reducing the loss of mechanical energy conversion, the friction and wear inside the motor can be reduced, thereby extending the service life of the motor. This helps to reduce maintenance costs and the frequency of motor replacement. This technical solution can be integrated with other control systems (such as PLC, inverter, etc.) to achieve a higher level of automated control and optimization. This helps to improve the performance and reliability of the entire system and meet a wider range of application needs.

[0117] In summary, this technical solution achieves effective suppression of mechanical energy conversion losses by real-time monitoring and adjustment of the operating parameters of the permanent magnet AC servo motor, improves the efficiency, stability and life of the motor, and enhances the performance of the entire system.

[0118] In one embodiment of the present invention, the real-time acquisition module includes:

[0119] A frequency extraction module, used to extract the operating parameter data to be collected and its corresponding data collection frequency, wherein the operating parameter data includes speed data, torque data and vibration data;

[0120] The data acquisition module is used to collect speed data, torque data and vibration data in real time according to the data acquisition frequency corresponding to the speed data, torque data and vibration data during the operation of the permanent magnet AC servo motor.

[0121] The working principle of the above technical solution is as follows: First, according to the characteristics and application requirements of the permanent magnet AC servo motor, the operating parameter data that need to be collected are extracted. These parameter data include speed data, torque data and vibration data. Then, the corresponding data collection frequency is set for each parameter data. The setting of the data collection frequency needs to be determined according to the operating condition of the motor, the speed of data change and the needs of subsequent data analysis. Ensure that the required data can be accurately collected according to the set frequency during the operation of the motor. During the operation of the permanent magnet AC servo motor, sensors or data acquisition devices are used to collect speed data, torque data and vibration data in real time according to the previously set data acquisition frequency. The collected data will be stored in a designated storage device or database for subsequent data analysis and processing.

[0122] The effect of the above technical solution is: by real-time acquisition and storage of motor operating parameter data, the accuracy and integrity of the data can be ensured. This helps to accurately evaluate and optimize the motor performance in the future. The real-time data acquisition function can realize real-time monitoring of the motor's operating status, and timely discover and handle abnormal situations. This helps to prevent motor failures and improve the stability and reliability of the system. By analyzing the collected speed data, torque data and vibration data, the operating status and performance characteristics of the motor can be understood. Then the motor can be optimized and adjusted, such as adjusting the control strategy, improving the structural design, etc., to improve the efficiency and performance of the motor. The collected data can also be used for motor fault diagnosis. By analyzing and processing the data, the possible fault types and fault locations of the motor can be identified, providing strong support for maintenance and replacement. The technical solution can be combined with an intelligent control system to realize intelligent monitoring and control of motor operation. This helps to improve the intelligence level of the entire system, improve production efficiency and product quality.

[0123] In summary, this technical solution provides strong support for motor performance evaluation, optimization adjustment, fault diagnosis and intelligent control by real-time collection of permanent magnet AC servo motor operating parameter data.

[0124] In one embodiment of the present invention, the loss judgment module includes:

[0125] A standard data extraction module, used to extract speed standard data, torque standard data and vibration data standard data corresponding to the speed data, torque data and vibration data;

[0126] A deviation acquisition module is used to monitor in real time the speed deviation, torque deviation and vibration deviation between the current speed data, torque data and vibration data and their corresponding speed standard data, torque standard data and vibration standard data;

[0127] The judgment execution module is used to use the speed deviation, torque deviation and vibration deviation to obtain whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

[0128] The working principle of the above technical solution is as follows: first, the speed standard data, torque standard data and vibration data standard data corresponding to the current permanent magnet AC servo motor operating parameters are extracted from the preset standard database. These standard data are usually set based on comprehensive considerations such as the motor's design parameters, historical operating data and industry standards. During the operation of the motor, the current speed data, torque data and vibration data are monitored in real time and compared with the extracted standard data. The speed deviation, torque deviation and vibration deviation between the current data and the standard data are calculated. These deviations reflect the degree of deviation between the motor operating parameters and the standard state. Using the calculated speed deviation, torque deviation and vibration deviation, combined with a preset loss evaluation model or algorithm, it is comprehensively judged whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirements. The loss evaluation model or algorithm usually takes into account factors such as the motor's structural characteristics, working principle and operating environment, and can more accurately reflect the motor's loss situation.

[0129] The effect of the above technical solution is: by real-time monitoring of the motor operating parameters and comparing and analyzing them with standard data, it is possible to more accurately determine whether the mechanical energy conversion loss during the motor operation meets the requirements. This helps to promptly discover potential loss problems and take corresponding measures to improve them. The real-time monitoring function can realize real-time tracking and evaluation of the motor operating status, and promptly discover and handle abnormal situations. This helps to prevent motor failures and improve the stability and reliability of the system. By real-time monitoring and analysis of the motor operating parameters, the operating status and performance characteristics of the motor can be understood. Then the motor can be optimized and adjusted, such as adjusting the control strategy, improving the structural design, etc., to improve the efficiency and performance of the motor. This technical solution can be combined with an intelligent control system to realize intelligent monitoring and evaluation of motor operation. This helps to improve the intelligence level of the entire system, improve production efficiency and product quality.

[0130] In summary, this technical solution can accurately determine whether the mechanical energy conversion loss during the operation of the motor meets the requirements by real-time monitoring of the operating parameters of the permanent magnet AC servo motor and comparing and analyzing them with standard data. This helps to timely discover and deal with potential loss problems and improve the performance and reliability of the motor.

[0131] In one embodiment of the present invention, the judgment execution module includes:

[0132] A deviation extraction module, used to extract the speed deviation, torque deviation and vibration deviation;

[0133] The mechanical energy conversion loss evaluation coefficient acquisition module is used to obtain the mechanical energy conversion loss evaluation coefficient by using the speed deviation, torque deviation and vibration deviation; wherein the mechanical energy conversion loss evaluation coefficient is obtained by the following formula:

[0134]

[0135] Wherein, W represents the mechanical energy conversion loss evaluation coefficient; V, T and D represent the speed deviation, torque deviation and vibration deviation respectively; N represents the adjustment coefficient, and the adjustment coefficient is obtained by the following formula:

[0136]

[0137] Wherein, N represents the adjustment coefficient; a, b and c represent the weight coefficients corresponding to the speed data, torque data and vibration data respectively; V max , T max and D max Respectively represent the maximum speed data, the maximum torque data and the maximum vibration data; V b , T b and D b Respectively represent the speed standard data, torque standard data and vibration data standard data;

[0138] A coefficient comparison module, used for comparing the mechanical energy conversion loss evaluation coefficient with a preset loss evaluation coefficient threshold;

[0139] The demand determination module is used to determine that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement when the mechanical energy conversion loss evaluation coefficient exceeds the preset loss evaluation coefficient threshold; otherwise, it is used to determine that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

[0140] The working principle of the above technical solution is: extract the speed deviation, torque deviation and vibration deviation from the real-time monitored motor operating parameters. These deviations reflect the degree of deviation between the actual motor operating parameters and the standard parameters. The mechanical energy conversion loss evaluation coefficient W is calculated using the extracted deviation, combined with the preset formula and weight coefficient. This coefficient is a comprehensive evaluation index used to quantify the mechanical energy conversion loss during the operation of the motor. The adjustment coefficient N in the formula is calculated by another formula, which takes into account the weight coefficients a, b, c corresponding to the speed data, torque data and vibration data, as well as the maximum values ​​Vmax, Tmax, Dmax and standard values ​​Vb, Tb, Db of these data. The setting of these weight coefficients and maximum and standard values ​​is usually based on comprehensive considerations such as the design parameters of the motor, historical operating data and industry standards. The calculated mechanical energy conversion loss evaluation coefficient W is compared with the preset loss evaluation coefficient threshold. If W exceeds the threshold, it is determined that the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirements; otherwise, it is determined that the requirements are met.

[0141] The effect of the above technical solution is: by comprehensively considering the speed deviation, torque deviation and vibration deviation, as well as their corresponding weight coefficients and maximum and standard values, the mechanical energy conversion loss during the operation of the motor can be more accurately evaluated. This helps to improve the precision and accuracy of the judgment. The real-time monitoring function can realize real-time tracking and evaluation of the motor operation status, timely detect abnormal conditions and handle them. This helps to prevent motor failures and improve the stability and reliability of the system. Through real-time monitoring and evaluation of mechanical energy conversion losses, the trend of motor performance degradation or loss increase can be discovered in time, and then the motor can be optimized and adjusted, such as adjusting the control strategy, improving the structural design, etc., to improve the efficiency and performance of the motor. The technical solution can be combined with an intelligent control system to realize intelligent monitoring and evaluation of motor operation. This helps to improve the intelligence level of the entire system, improve production efficiency and product quality. By judging whether the mechanical energy conversion loss meets the requirements, a decision-making basis can be provided for the maintenance and maintenance of the motor. When the loss evaluation coefficient exceeds the threshold, maintenance measures can be taken in time to avoid damage to the motor due to long-term high-loss operation.

[0142] In summary, this technical solution can accurately determine whether the mechanical energy conversion loss during the operation of the motor meets the requirements by real-time monitoring and analysis of the operating parameters of the permanent magnet AC servo motor, combined with the preset formula and weight coefficient. This helps to timely discover and deal with potential loss problems, improve the performance and reliability of the motor, and provide a decision-making basis for the maintenance and care of the motor.

[0143] In one embodiment of the present invention, the automatic adjustment module includes:

[0144] A speed adjustment module, which is used to automatically adjust the speed data of the permanent magnet AC servo motor during operation according to the load change in combination with the mechanical energy conversion loss evaluation coefficient when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, so as to obtain the adjusted speed data;

[0145] The adjusted speed data is obtained by the following formula:

[0146]

[0147] Among them, V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max Indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor;

[0148] A torque adjustment module, which is used to automatically adjust the torque data during the operation of the permanent magnet AC servo motor according to the load change in combination with the mechanical energy conversion loss evaluation coefficient when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, so as to obtain the adjusted torque data;

[0149] The adjusted torque data is obtained by the following formula:

[0150]

[0151] Among them, T t Indicates the adjusted torque data; T x Indicates the torque data before adjustment; V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max It indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor.

[0152] The working principle of the above technical solution is: when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirements, the system will first obtain the current mechanical energy conversion loss evaluation coefficient W. The evaluation coefficient W is obtained by real-time monitoring of the motor's speed deviation, torque deviation and vibration deviation, and is calculated in combination with a preset formula and weight coefficient. According to the obtained mechanical energy conversion loss evaluation coefficient W, and the allowable complexity L corresponding to the current load change (compared with the maximum allowable complexity Lmax), the system will automatically adjust the speed data of the permanent magnet AC servo motor. The adjusted speed data Vt is calculated by a preset formula, which takes into account the speed data Vx before adjustment, the mechanical energy conversion loss evaluation coefficient W, the current allowable complexity L and the maximum allowable complexity Lmax. By adjusting the speed data, the system aims to optimize the running state of the motor and reduce the mechanical energy conversion loss. Similar to the speed data adjustment, when the mechanical energy conversion loss does not meet the requirements, the system will also automatically adjust the torque data of the permanent magnet AC servo motor. The adjusted torque data Tt is calculated by another preset formula, which takes into account the torque data Tx before adjustment, the speed data Vt after adjustment, the speed data Vx before adjustment, the mechanical energy conversion loss evaluation coefficient W, the current allowable complexity L and the maximum allowable complexity Lmax. By adjusting the torque data, the system further optimizes the running state of the motor to ensure that the mechanical energy conversion loss meets the preset requirements.

[0153] The effect of the above technical solution is: by real-time monitoring and evaluation of mechanical energy conversion loss, and automatically adjusting the motor's operating parameter data according to load changes, the system can ensure that the motor operates in an efficient and stable state. This helps to reduce unnecessary energy loss and improve the motor's energy efficiency ratio, thereby saving energy and reducing production costs. The automatic adjustment function can achieve real-time tracking and response to the motor's operating status, and timely adjust the motor's operating parameters to adapt to load changes. This helps to enhance the stability and reliability of the system and reduce production interruptions caused by motor failure or performance degradation. By accurately adjusting the motor's speed and torque data, the system can optimize the motor's performance. This helps to improve the motor's response speed, control accuracy and load capacity, thereby meeting a wider range of application requirements. The technical solution combines technical means such as real-time monitoring, automatic adjustment and intelligent control to achieve intelligent management of the permanent magnet AC servo motor's operating status. This helps to improve the intelligence level of the entire system, improve production efficiency and product quality. By real-time monitoring and evaluation of the motor's operating status, the system can promptly detect potential failures or performance degradation trends. This helps to take maintenance measures in advance to avoid damage to the motor due to long-term high-loss operation, thereby reducing maintenance costs.

[0154] In summary, this technical solution achieves intelligent management and optimization of the motor's operating status by real-time monitoring and evaluation of the mechanical energy conversion loss of the permanent magnet AC servo motor and automatically adjusting the motor's operating parameter data according to load changes. This helps to improve the motor's energy efficiency, stability and performance, reduce maintenance costs, and enhance the intelligence level of the entire system.

[0155] 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 suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor, characterized in that: The method for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor comprises: Real-time collection of operating parameter data of permanent magnet AC servo motor during operation; Determining whether the amount of mechanical energy conversion loss generated by the current operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement according to the operating parameter data during the operation of the permanent magnet AC servo motor; When the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the operating parameter data of the permanent magnet AC servo motor during operation is automatically adjusted according to the load change.

2. The method for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor according to claim 1, characterized in that: Real-time collection of operating parameter data of permanent magnet AC servo motor during operation, including: Extracting the operating parameter data to be collected and its corresponding data collection frequency, wherein the operating parameter data includes speed data, torque data and vibration data; During the operation of the permanent magnet AC servo motor, the speed data, torque data and vibration data are collected in real time according to the data collection frequencies corresponding to the speed data, torque data and vibration data.

3. The method for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor according to claim 1, characterized in that: Judging whether the amount of mechanical energy conversion loss generated by the current operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement according to the operation parameter data of the permanent magnet AC servo motor during operation, includes: Extracting speed standard data, torque standard data and vibration data standard data corresponding to the speed data, torque data and vibration data; Real-time monitoring of the speed deviation, torque deviation and vibration deviation between the current speed data, torque data and vibration data and their corresponding speed standard data, torque standard data and vibration standard data; The speed deviation, torque deviation and vibration deviation are used to determine whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

4. The method for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor according to claim 3, characterized in that: The speed deviation, torque deviation and vibration deviation are used to determine whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirements, including: Extracting the speed deviation, torque deviation and vibration deviation; The speed deviation, torque deviation and vibration deviation are used to obtain a mechanical energy conversion loss evaluation coefficient; wherein the mechanical energy conversion loss evaluation coefficient is obtained by the following formula: Wherein, W represents the mechanical energy conversion loss evaluation coefficient; V, T and D represent the speed deviation, torque deviation and vibration deviation respectively; N represents the adjustment coefficient, and the adjustment coefficient is obtained by the following formula: Wherein, N represents the adjustment coefficient; a, b and c represent the weight coefficients corresponding to the speed data, torque data and vibration data respectively; V max , T max and D max Respectively represent the maximum speed data, the maximum torque data and the maximum vibration data; V b , T b and D b Respectively represent the speed standard data, torque standard data and vibration data standard data; Comparing the mechanical energy conversion loss evaluation coefficient with a preset loss evaluation coefficient threshold; When the mechanical energy conversion loss evaluation coefficient exceeds the preset loss evaluation coefficient threshold, it is determined that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement; otherwise, it is determined that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

5. The method for suppressing mechanical energy conversion loss of a permanent magnet AC servo motor rotor according to claim 1, characterized in that: When the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the operating parameter data of the permanent magnet AC servo motor during operation is automatically adjusted according to the load change, including: When the mechanical energy conversion loss amount generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the speed data of the permanent magnet AC servo motor during operation is automatically adjusted according to the load change in combination with the mechanical energy conversion loss evaluation coefficient to obtain the adjusted speed data; The adjusted speed data is obtained by the following formula: Among them, V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max Indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor; When the mechanical energy conversion loss amount generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, the torque data during the operation of the permanent magnet AC servo motor is automatically adjusted according to the load change in combination with the mechanical energy conversion loss evaluation coefficient to obtain the adjusted torque data; The adjusted torque data is obtained by the following formula: Among them, T t Indicates the adjusted torque data; T x Indicates the torque data before adjustment; V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max It indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor.

6. A permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system, characterized in that: The permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system comprises: A real-time acquisition module is used to collect the operating parameter data of the permanent magnet AC servo motor in real time during its operation; A loss judgment module is used to judge whether the mechanical energy conversion loss amount generated by the current operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement according to the operation parameter data of the permanent magnet AC servo motor during operation; The automatic adjustment module is used to automatically adjust the operating parameter data of the permanent magnet AC servo motor during operation according to load changes when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirements.

7. The permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system according to claim 6, characterized in that: The real-time acquisition module comprises: A frequency extraction module, used to extract the operating parameter data to be collected and its corresponding data collection frequency, wherein the operating parameter data includes speed data, torque data and vibration data; The data acquisition module is used to collect speed data, torque data and vibration data in real time according to the data acquisition frequency corresponding to the speed data, torque data and vibration data during the operation of the permanent magnet AC servo motor.

8. The permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system according to claim 6, characterized in that: The loss judgment module comprises: A standard data extraction module, used to extract speed standard data, torque standard data and vibration data standard data corresponding to the speed data, torque data and vibration data; A deviation acquisition module is used to monitor in real time the speed deviation, torque deviation and vibration deviation between the current speed data, torque data and vibration data and their corresponding speed standard data, torque standard data and vibration standard data; The judgment execution module is used to use the speed deviation, torque deviation and vibration deviation to obtain whether the mechanical energy conversion loss during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

9. The permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system according to claim 8, characterized in that: The judgment execution module includes: A deviation extraction module, used to extract the speed deviation, torque deviation and vibration deviation; The mechanical energy conversion loss evaluation coefficient acquisition module is used to obtain the mechanical energy conversion loss evaluation coefficient by using the speed deviation, torque deviation and vibration deviation; wherein the mechanical energy conversion loss evaluation coefficient is obtained by the following formula: Wherein, W represents the mechanical energy conversion loss evaluation coefficient; V, T and D represent the speed deviation, torque deviation and vibration deviation respectively; N represents the adjustment coefficient, and the adjustment coefficient is obtained by the following formula: Wherein, N represents the adjustment coefficient; a, b and c represent the weight coefficients corresponding to the speed data, torque data and vibration data respectively; V max , T max and D max Respectively represent the maximum speed data, the maximum torque data and the maximum vibration data; V b , T b and D b Respectively represent the speed standard data, torque standard data and vibration data standard data; A coefficient comparison module, used for comparing the mechanical energy conversion loss evaluation coefficient with a preset loss evaluation coefficient threshold; The demand determination module is used to determine that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement when the mechanical energy conversion loss evaluation coefficient exceeds the preset loss evaluation coefficient threshold; otherwise, it is used to determine that the mechanical energy conversion loss amount during the operation of the permanent magnet AC servo motor meets the preset mechanical energy loss requirement.

10. The permanent magnet AC servo motor rotor mechanical energy conversion loss suppression system according to claim 6, characterized in that: The automatic adjustment module comprises: A speed adjustment module, which is used to automatically adjust the speed data of the permanent magnet AC servo motor during operation according to the load change in combination with the mechanical energy conversion loss evaluation coefficient when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, so as to obtain the adjusted speed data; The adjusted speed data is obtained by the following formula: Among them, V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max Indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor; A torque adjustment module, which is used to automatically adjust the torque data during the operation of the permanent magnet AC servo motor according to the load change in combination with the mechanical energy conversion loss evaluation coefficient when the mechanical energy conversion loss generated by the operation of the permanent magnet AC servo motor does not meet the preset mechanical energy loss requirement, so as to obtain the adjusted torque data; The adjusted torque data is obtained by the following formula: Among them, T t Indicates the adjusted torque data; T x Indicates the torque data before adjustment; V t Indicates the adjusted speed data; V x Indicates the speed data before adjustment; W indicates the mechanical energy conversion loss evaluation coefficient; L max It indicates the maximum allowable complexity corresponding to the operation of the permanent magnet AC servo motor; L indicates the allowable complexity corresponding to the current operation of the permanent magnet AC servo motor.

Images