Control method and device of frequency converter of wire drawing machine, computer equipment and storage medium

Abstract

The invention relates to the technical field of wire drawing machine frequency converter control. The invention relates to a control method and device for a frequency converter of a wire drawing machine, computer equipment and a storage medium, and the method comprises the steps: obtaining the tension feedback information of the wire drawing machine, carrying out the tension error calculation of the tension feedback information of the wire drawing machine, according to the real-time tension deviation value, the output frequency of the frequency converter is corrected through a nonlinear correction algorithm, the corrected output frequency of the frequency converter is obtained, and according to the corrected output frequency of the frequency converter, operation control information of the frequency converter of the wire drawing machine is generated so as to adjust operation parameters of the frequency converter of the wire drawing machine. The frequency converter control method has the effect of accurately controlling the frequency converter.

Description

Technical Field

[0001] The present invention relates to the technical field of the control of wire drawing machine frequency converters, and more particularly to a control method, device, computer device and storage medium for a wire drawing machine frequency converter. Background Art

[0002] During the operation of a wire drawing machine, tension control is an important factor to ensure product quality and process stability. Traditional wire drawing machine tension control methods usually rely on fixed frequency adjustment mechanisms and simple feedback controls. However, this method is easily affected by various factors in actual operation, such as environmental changes, material properties, and fluctuations in process requirements, resulting in insufficient precision and response speed of tension control. Especially in high-precision production scenarios, traditional methods are difficult to adapt to complex working conditions and are prone to tension fluctuations, affecting the quality of the final product.

[0003] In order to improve the precision and stability of wire drawing machine tension control, more and more research and applications have started to introduce frequency converter technology to adjust the operating parameters of the wire drawing machine in real time through the frequency converter. However, existing frequency converter control methods usually only rely on linear feedback control and are difficult to handle complex non-linear relationships, resulting in unsatisfactory control effects. Summary of the Invention

[0004] In order to achieve precise control of the frequency converter, the present application provides a control method, device, computer device and storage medium for a wire drawing machine frequency converter.

[0005] The first above-mentioned object of the present invention of the present application is achieved through the following technical solutions: A control method for a wire drawing machine frequency converter, the control method for the wire drawing machine frequency converter comprising: Obtaining wire drawing machine tension feedback information, wherein the wire drawing machine tension feedback information includes real-time tension values at multiple detection positions during the wire drawing process; Calculating a tension error of the wire drawing machine tension feedback information to obtain a real-time tension deviation value; According to the real-time tension deviation value, correcting the output frequency of the frequency converter through a non-linear correction algorithm to obtain a corrected output frequency of the frequency converter; Generating wire drawing machine frequency converter operation control information according to the corrected output frequency of the frequency converter to adjust the operating parameters of the wire drawing machine frequency converter.

[0006] By adopting the above technical solutions, by obtaining the tension feedback information of the wire drawing machine, wherein the tension feedback information of the wire drawing machine includes the real-time tension values at multiple detection positions during the wire drawing process, the tension changes during the wire drawing process can be captured in real time and accurately, thereby improving the comprehensiveness and accuracy of tension monitoring. By calculating the tension error of the tension feedback information of the wire drawing machine to obtain the real-time tension deviation value, the tension error occurring during the wire drawing process can be accurately quantified, thereby improving the accuracy of subsequent frequency adjustment and ensuring more effective adjustment of the frequency converter. By correcting the output frequency of the frequency converter according to the real-time tension deviation value through a non-linear correction algorithm to obtain the corrected output frequency of the frequency converter, the complex changes of the tension can be responded to more flexibly and accurately, thereby improving the response speed and adjustment effect of the output frequency of the frequency converter. By generating the operation control information of the wire drawing machine frequency converter according to the corrected output frequency of the frequency converter to adjust the operation parameters of the wire drawing machine frequency converter, the operation state of the frequency converter can be ensured to always adapt to the requirements of the actual working conditions.

[0007] In a preferred example, the present application may be further configured as follows: calculating the tension error of the tension feedback information of the wire drawing machine to obtain the real-time tension deviation value includes: Calculating the difference between the real-time tension value at each detection position during the wire drawing process and the corresponding standard tension value to obtain the tension difference at the detection position; By performing weighted averaging on the tension differences at the detection positions according to a predetermined weight coefficient, an overall tension error value is obtained; Comparing the overall tension error value with a preset dynamic threshold to obtain a comparison result, and determining the deviation characteristics of the overall tension error value according to the comparison result to obtain the real-time tension deviation value.

[0008] By adopting the above technical solutions, calculating the difference between the real-time tension value at each detection position during the wire drawing process and the corresponding standard tension value can accurately identify the tension deviation at each detection position, thereby improving the accuracy of tension monitoring. By performing weighted averaging on the tension differences at the detection positions according to a predetermined weight coefficient, the tension information of multiple detection positions can be effectively integrated to obtain a more accurate overall tension error value, thereby improving the integrity and reliability of tension control. By comparing the overall tension error value with a preset dynamic threshold, abnormal tension situations can be identified in a timely manner, and the deviation characteristics of the overall tension error value can be determined according to the comparison result, thereby improving the ability to respond to tension fluctuations and ensuring the accuracy of the real-time tension deviation value.

[0009] In a preferred example, the present application may be further configured as follows: the step of obtaining the overall tension error value by performing weighted averaging on the tension differences at the detection positions according to a predetermined weight coefficient includes: The overall tension error value is calculated by the following formula: where w i (t) is the real-time weight coefficient, w i (0) is the weight coefficient of each of the detection positions during the wire drawing process, α is the adjustment coefficient, i is the serial number of each of the detection positions during the wire drawing process, ΔT i (t) is the tension difference at the i-th detection position at time t, and T 标准 is the predetermined standard tension value. where n is the total number of the detection positions, and ΔT 总 (t) is the overall tension error value.

[0010] By adopting the above technical solution, the influence of each detection position is dynamically adjusted by using the real-time weight coefficient w i (t), and the tension change can be responded more flexibly according to the real-time working conditions, thereby improving the accuracy and adaptability of the overall tension error calculation. By using the formula, the real-time tension differences of multiple detection positions can be effectively integrated, ensuring that the calculation of the overall tension error value is more accurate, thereby improving the response speed and adjustment effect of the tension control and adapting to complex wire drawing working conditions.

[0011] In a preferred example of the present application, it can be further configured that: comparing the overall tension error value with a preset dynamic threshold to obtain a comparison result, and determining the deviation characteristic of the overall tension error value according to the comparison result to obtain the real-time tension deviation value, including: Judging whether the overall tension error value exceeds the preset dynamic threshold range according to the comparison result to obtain a deviation state; For the abnormal state, calculating the difference between the overall tension error value and the preset dynamic threshold to obtain a deviation degree value, and for the normal state, taking the overall tension error value as the deviation degree value; Generating the real-time tension deviation value according to the deviation state and the deviation degree value.

[0012] By adopting the above technical solution, comparing the overall tension error value with a preset dynamic threshold can real-time judge the deviation state of the tension error, thereby improving the sensitivity and response speed to the tension change. By judging whether the overall tension error value exceeds the preset dynamic threshold range according to the comparison result, the normal and abnormal states can be accurately identified.

[0013] In a preferred example, the present application can be further configured as follows: according to the real-time tension deviation value, the output frequency of the frequency converter is corrected through a non-linear correction algorithm to obtain the corrected output frequency of the frequency converter, including: Based on the real-time tension deviation value, the current output frequency of the frequency converter is calculated through the preset non-linear correction algorithm to obtain a correction frequency adjustment amount; The correction frequency adjustment amount is added to or subtracted from the current output frequency of the frequency converter to obtain the corrected output frequency of the frequency converter.

[0014] By adopting the above technical solution, it is possible to judge the deviation state of the overall tension error value in real time, accurately identify normal and abnormal situations, and conduct detailed analysis and processing on different types of deviations, and finally generate an accurate real-time tension deviation value, thereby improving the sensitivity to tension changes, response speed, the ability to cope with complex tension fluctuations, and the stability and accuracy of overall tension control.

[0015] In a preferred example, the present application can be further configured as follows: the correction frequency adjustment amount is obtained by calculating the current output frequency of the frequency converter through the preset non-linear correction algorithm based on the real-time tension deviation value, including: The correction frequency adjustment amount is confirmed through the following formula: where Δf is the correction frequency adjustment amount, k(t) is the time correction coefficient, ΔT is the deviation degree value, γ is the non-linear adjustment index, λ and β are dynamic adjustment parameters, and sgn(ΔT) is the sign function, which determines the direction of the correction frequency adjustment amount.

[0016] By adopting the above technical solution, it is possible to dynamically adjust the correction frequency, flexibly cope with tension changes according to the deviation degree value and real-time working conditions, thereby improving the accuracy and adaptability of frequency adjustment, and enabling the frequency converter to maintain a stable output effect under complex operating conditions.

[0017] In a preferred example, the present application can be further configured as follows: based on the corrected output frequency of the frequency converter, the operation control information of the wire drawing machine frequency converter is generated to adjust the operation parameters of the wire drawing machine frequency converter, including: Based on the corrected output frequency of the frequency converter, the target output frequency of the frequency converter is determined; According to the target output frequency and in combination with the current operating state of the frequency converter, the required operation parameter adjustment amount is calculated; According to the required operation parameter adjustment amount, the operation control information of the wire drawing machine frequency converter is generated to adjust the operation parameters of the wire drawing machine frequency converter.

[0018] By adopting the above technical solution, the target output frequency reflects the operating frequency that the frequency converter should reach under the ideal state after calibration. Combining with the current operating state of the frequency converter to obtain the operation adjustment parameter information can make the control information more suitable for the current working condition, ensure that the adjustment is more flexible and accurate, and thus improve the adaptability and response speed of the frequency converter to the change of working condition. Finally, the generated operation control information of the wire drawing machine frequency converter is used to adjust the operation parameters of the frequency converter in real time, which can ensure that the operation of the wire drawing machine is always in an optimized state, thereby improving the stability and production efficiency of the entire wire drawing process.

[0019] The second invention object of the present application is achieved by the following technical solutions: A control device for a wire drawing machine frequency converter, the control device for the wire drawing machine frequency converter includes: A tension feedback acquisition module, configured to acquire the wire drawing machine tension feedback information, wherein the wire drawing machine tension feedback information includes real-time tension values at multiple detection positions during the wire drawing process; A tension error calculation module, configured to calculate the tension error of the wire drawing machine tension feedback information to obtain a real-time tension deviation value; A frequency correction module, configured to correct the output frequency of the frequency converter through a non-linear correction algorithm according to the real-time tension deviation value to obtain a corrected output frequency of the frequency converter; A frequency converter control adjustment module, configured to generate operation control information for the wire drawing machine frequency converter according to the corrected output frequency of the frequency converter to adjust the operation parameters of the wire drawing machine frequency converter.

[0020] By adopting the above technical solution, by acquiring the wire drawing machine tension feedback information, wherein the wire drawing machine tension feedback information includes real-time tension values at multiple detection positions during the wire drawing process, the tension change during the wire drawing process can be captured in real time and accurately, thereby improving the comprehensiveness and accuracy of tension monitoring. By calculating the tension error of the wire drawing machine tension feedback information to obtain a real-time tension deviation value, the tension error occurring during the wire drawing process can be accurately quantified, thereby improving the accuracy of subsequent frequency adjustment and ensuring that the adjustment of the frequency converter is more effective. By correcting the output frequency of the frequency converter through a non-linear correction algorithm according to the real-time tension deviation value to obtain a corrected output frequency of the frequency converter, the complex change of tension can be responded to more flexibly and accurately, thereby improving the response speed and adjustment effect of the output frequency of the frequency converter. By generating operation control information for the wire drawing machine frequency converter according to the corrected output frequency of the frequency converter to adjust the operation parameters of the wire drawing machine frequency converter, the operation state of the frequency converter can be ensured to always meet the requirements of the actual working condition.

[0021] The third object of the present application is achieved by the following technical solutions: A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the control method of the above-mentioned wire drawing machine frequency converter are implemented.

[0022] The above-mentioned fourth object of the present application is achieved by the following technical solutions: A computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the steps of the control method of the above-mentioned wire drawing machine frequency converter are implemented.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. Utilize the real-time weight coefficient w i (t) to dynamically adjust the influence of each detection position, and can respond more flexibly to tension changes according to the real-time working conditions, thereby improving the accuracy and adaptability of the overall tension error calculation. By adopting the formula, the real-time tension differences of multiple detection positions can be effectively integrated, ensuring that the calculation of the overall tension error value is more accurate, thereby improving the response speed and adjustment effect of tension control and adapting to complex wire drawing working conditions; 2. Compare the overall tension error value with a preset dynamic threshold, and can judge the deviation state of the tension error in real time, thereby improving the sensitivity and response speed to tension changes. By judging whether the overall tension error value exceeds the preset dynamic threshold range according to the comparison result, the normal and abnormal states can be accurately identified; 3. By obtaining the wire drawing machine tension feedback information, where the wire drawing machine tension feedback information includes the real-time tension values at multiple detection positions during the wire drawing process, the tension changes during the wire drawing process can be captured in real time and accurately, thereby improving the comprehensiveness and accuracy of tension monitoring. By calculating the tension error of the wire drawing machine tension feedback information to obtain the real-time tension deviation value, the tension error occurring during the wire drawing process can be accurately quantified, thereby improving the accuracy of subsequent frequency adjustment and ensuring that the adjustment of the frequency converter is more effective. By correcting the output frequency of the frequency converter through a non-linear correction algorithm according to the real-time tension deviation value to obtain the corrected output frequency of the frequency converter, the complex changes of the tension can be responded to more flexibly and accurately, thereby improving the response speed and adjustment effect of the output frequency of the frequency converter. By generating the wire drawing machine frequency converter operation control information according to the corrected output frequency of the frequency converter to adjust the operation parameters of the wire drawing machine frequency converter, it can ensure that the operation state of the frequency converter always adapts to the requirements of the actual working conditions. Description of the Drawings

[0024] Figure 1 is a flowchart of the control method of the wire drawing machine frequency converter in an embodiment of the present application; Figure 2It is the implementation flowchart of step S20 in the control method of the wire drawing machine frequency converter in an embodiment of the present application; Figure 3 It is the implementation flowchart of step S202 in the control method of the wire drawing machine frequency converter in an embodiment of the present application; Figure 4 It is the implementation flowchart of step S203 in the control method of the wire drawing machine frequency converter in an embodiment of the present application; Figure 5 It is the implementation flowchart of step S30 in the control method of the wire drawing machine frequency converter in an embodiment of the present application; Figure 6 It is the implementation flowchart of step S302 in the control method of the wire drawing machine frequency converter in an embodiment of the present application; Figure 7 It is the implementation flowchart of step S40 in the control method of the wire drawing machine frequency converter in an embodiment of the present application; Figure 8 It is a principle block diagram of a control device for a wire drawing machine frequency converter in an embodiment of the present application; Figure 9 It is a schematic diagram of the equipment in an embodiment of the present application. Detailed implementation manners

[0025] The following further describes the present application in detail with reference to the accompanying drawings.

[0026] In one embodiment, as Figure 1 shown, the present application discloses a control method for a wire drawing machine frequency converter, which specifically includes the following steps: S10: Obtain the wire drawing machine tension feedback information, where the wire drawing machine tension feedback information includes the real-time tension values at multiple detection positions during the wire drawing process.

[0027] In this embodiment, the wire drawing machine tension feedback information refers to the tension data collected in real time by multiple tension sensors installed on the wire drawing machine. The tension sensors are distributed on the wire drawing machine and can monitor the tension changes at different positions in real time. The multiple real-time tension values can not only reflect the instantaneous tension conditions at each detection point, but also form a continuous data stream during the entire wire drawing process for subsequent tension error analysis and frequency adjustment. The real-time tension values at multiple detection positions during the wire drawing process refer to the instantaneous tension values obtained by multiple tension sensors distributed at different positions.

[0028] Specifically, the tension sensors are set at key parts of the wire drawing machine, such as the inlet, outlet, and intermediate wire drawing section, to ensure that the system comprehensively monitors the tension distribution during the entire wire drawing process. The real-time tension value at each detection position reflects the actual tension state of the position at a specific moment.

[0029] S20: Calculate the tension error of the wire drawing machine tension feedback information to obtain the real-time tension deviation value.

[0030] In this embodiment, the real-time tension deviation value refers to the value obtained by calculating the difference between the actually detected tension value and the predetermined standard tension value. This value is used to evaluate whether the current tension state deviates from the set target range. The calculation process of the tension deviation value receives the real-time tension values of each detection point and compares these tension values with the stored standard tension values. The difference is the tension deviation value of this detection point. The deviation values of all detection points are summarized and averaged to obtain a comprehensive real-time tension deviation value, which can accurately reflect the tension state during the entire wire drawing process.

[0031] Specifically, the tension error calculation includes comparing the real-time tension value of each detection point with the corresponding standard tension value point by point to obtain the tension difference of each point. Then, the tension differences of all detection points are weighted and averaged. At the same time, according to the importance of different detection points in the wire drawing process, specific weight coefficients are assigned. The size of the weight coefficient is based on the importance of the detection point in the overall tension control. Finally, the overall real-time tension deviation value is calculated by accumulating the weighted tension differences.

[0032] S30: According to the real-time tension deviation value, correct the output frequency of the frequency converter through a non-linear correction algorithm to obtain the corrected output frequency of the frequency converter.

[0033] In this embodiment, the non-linear correction algorithm refers to an algorithm that adjusts the output frequency of the frequency converter through a set non-linear function according to the magnitude and direction of the real-time tension deviation value. By performing non-linear processing on the deviation value, it is ensured that a large adjustment can be made when the tension deviation is large, and a small adjustment can be made when the tension deviation is small, so as to avoid the impact of frequent small adjustments on the stability of the frequency converter operation. The non-linear correction algorithm takes into account the dynamic changes during the wire drawing process and the response characteristics of the frequency converter, making the frequency adjustment more accurate and stable, and reducing the situation of over-correction or under-correction of the tension.

[0034] Specifically, the non-linear correction algorithm performs a function operation on the real-time tension deviation value by setting correction parameters such as adjustment coefficients and non-linear exponents. First, determine the current tension deviation value, and then perform non-linear processing on the deviation value according to the correction algorithm to obtain a frequency adjustment amount. This frequency adjustment amount is used for the output frequency of the frequency converter, and the corrected output frequency can more accurately respond to the current tension deviation, so that the wire drawing process quickly returns to a stable state.

[0035] S40: Generate the operation control information of the wire drawing machine frequency converter according to the corrected output frequency of the frequency converter to adjust the operation parameters of the wire drawing machine frequency converter.

[0036] In this embodiment, the operation control information of the wire drawing machine frequency converter refers to a series of instruction sets generated based on the corrected output frequency of the frequency converter. The instruction sets are used to adjust the operation status and parameters of the frequency converter in real time to ensure that the wire drawing machine operates in the best state. The operation control information includes the target frequency, adjustment time, voltage and current settings, etc. of the frequency converter.

[0037] Specifically, according to the corrected output frequency of the frequency converter, first determine the new target output frequency, compare it with the current working state, and generate the operation parameter information that needs to be adjusted. These operation parameter information include the frequency adjustment range, adjustment speed, voltage correction value, etc. Convert these parameter information into specific control information and send it to the frequency converter control part. The frequency converter adjusts the operation status according to these instructions to match the corrected output frequency and ensure that the tension is stable within the set range.

[0038] In one embodiment, as Figure 2 shown, in step S20, the wire drawing machine tension feedback information is subjected to tension error calculation to obtain the real-time tension deviation value, including: S201: Calculate the difference between the real-time tension value at each detection position during the wire drawing process and the corresponding standard tension value to obtain the tension difference at the detection position.

[0039] Specifically, obtain the real-time tension value from the tension sensor at each detection position, and compare these real-time tension values with the preset standard tension values one by one. Through point-by-point comparison, calculate the tension difference at each detection position. The tension difference at the detection position reflects the deviation degree between the current actual tension and the target tension.

[0040] S202: Obtain the overall tension error value by weighted averaging the tension differences at the detection positions according to a predetermined weight coefficient.

[0041] Specifically, for the tension difference at each detection position, assign a corresponding weight coefficient according to the importance of this detection position in the entire wire drawing process. The predetermined weight coefficient is set according to empirical data and process requirements. The larger the weight coefficient, the greater the influence of this position on the overall tension control. Multiply the tension differences at all detection positions by their respective weight coefficients, then accumulate these weighted differences, and divide by the sum of all weight coefficients to obtain the overall tension error value.

[0042] S203: Compare the overall tension error value with a preset dynamic threshold to obtain a comparison result. According to the comparison result, determine the deviation characteristic of the overall tension error value to obtain the real-time tension deviation value.

[0043] Specifically, the calculated overall tension error value is compared with a preset dynamic threshold to determine whether the tension error is within the normal range. The dynamic threshold is set according to the working conditions and historical data during the wire drawing process and can adapt to the tension fluctuations under different working conditions. If the overall tension error value exceeds the dynamic threshold range, it indicates that there are abnormal tension fluctuations in the system and further correction is required. Through the comparison result, the deviation characteristics of the overall tension error value are determined, specifically including the magnitude and direction of the deviation, and then the real-time tension deviation value is obtained.

[0044] In one embodiment, as Figure 3 shown, in step S202, that is, by weighted averaging the tension differences at the detection positions according to a predetermined weight coefficient, the overall tension error value is obtained, including: S2021: Calculate the overall tension error value through the following formula: where, w i (t) is the real-time weight coefficient, w i (0) is the weight coefficient of each detection position during the wire drawing process, α is the adjustment coefficient, i is the serial number of each detection position during the wire drawing process, ΔT i (t) is the tension difference at the i-th detection position at time t, T 标准 is the predetermined standard tension value, where, n is the total number of detection positions, and ΔT 总 (t) is the overall tension error value.

[0045] Specifically, according to the initial weight coefficient w i (0) and the tension difference ΔT i (t) at the current time point, through the adjustment coefficient α for dynamic adjustment, the real-time weight coefficient w i (t) is obtained. The introduction of the real-time weight coefficient enables the contribution degree of each detection position to the overall tension error value to change dynamically at different time points, depending on the relative gap between the current tension difference and the standard tension value. Subsequently, the tension difference ΔT i (t) of each detection position is multiplied by the corresponding real-time weight coefficient w i (t) to obtain the weighted tension difference. The weighted tension differences of all detection positions are accumulated and divided by the sum of all real-time weight coefficients, and finally the overall tension error value ΔT 总 (t) is calculated.

[0046] In one embodiment, as Figure 4As shown, in step S203, the overall tension error value is compared with a preset dynamic threshold to obtain a comparison result. According to the comparison result, the deviation characteristics of the overall tension error value are determined to obtain a real-time tension deviation value, including: S2031: According to the comparison result, determine whether the overall tension error value exceeds the preset dynamic threshold range to obtain a deviation state.

[0047] Specifically, the calculated overall tension error value is compared with the preset dynamic threshold. The dynamic threshold consists of two values, the upper and lower limits, which define the normal fluctuation range of the tension. The upper and lower limits of the threshold are automatically adjusted according to the current working conditions and historical data. If the overall tension error value is within this range of the upper and lower limits, it indicates that the tension is controlled within the normal range, and the deviation state is judged to be the normal state. If the overall tension error value exceeds the upper limit or is lower than the lower limit, it indicates that the tension has deviated from the normal range, and the deviation state is judged to be the abnormal state.

[0048] S2032: For the abnormal state, calculate the difference between the overall tension error value and the preset dynamic threshold to obtain a deviation degree value. For the normal state, use the overall tension error value as the deviation degree value.

[0049] Specifically, when an abnormal state is detected, first calculate the difference between the overall tension error value and the part exceeding the threshold. This difference represents the degree to which the tension deviates from the normal range and is called the deviation degree value. For example, if the overall tension error value is higher than the upper limit of the dynamic threshold, the deviation degree value is the difference between the error value and the upper limit value. If it is lower than the lower limit, it is the difference between the lower limit value and the error value. For the normal state, directly use the overall tension error value as the deviation degree value.

[0050] S2033: Generate a real-time tension deviation value according to the deviation state and the deviation degree value.

[0051] Specifically, according to the determined deviation state and the calculated deviation degree value, classify the current tension deviation. If the deviation state is the abnormal state and the error value is higher than the upper limit of the dynamic threshold, it is classified as the upper limit deviation. If the deviation state is the abnormal state and the error value is lower than the lower limit of the dynamic threshold, it is classified as the lower limit deviation. If the deviation state is the normal state, it is classified as the normal deviation. According to the current deviation characteristics (upper limit deviation, lower limit deviation or normal deviation) and the corresponding deviation degree value, generate a real-time tension deviation value reflecting the current tension state. The real-time tension deviation value contains comprehensive information about the tension deviation, including the deviation direction (upper limit or lower limit) and the magnitude of the deviation.

[0052] In an embodiment, as Figure 5 shown, in step S30, that is, according to the real-time tension deviation value, correct the output frequency of the frequency converter through a non-linear correction algorithm to obtain the corrected output frequency of the frequency converter, including: S301: Calculate the corrected frequency adjustment amount by applying a preset non - linear correction algorithm to the current output frequency of the frequency converter based on the real - time tension deviation value.

[0053] Specifically, take the real - time tension deviation value as the input and apply the preset non - linear correction algorithm to calculate the corrected frequency adjustment amount. The role of the non - linear correction algorithm is to calculate a corresponding frequency adjustment amount according to the magnitude and direction of the tension deviation, so as to ensure that the adjustment of the frequency converter output frequency can accurately correspond to the current tension demand. For example, if the real - time tension deviation value is large, the algorithm will output a large adjustment amount to quickly correct the deviation; if the real - time tension deviation value is small, the algorithm will output a small adjustment amount to avoid frequent over - adjustment. The non - linear correction algorithm operates through set parameters (such as non - linear adjustment coefficient and time dynamic factor) to ensure that the adjustment process can respond to real - time changes.

[0054] S302: Add or subtract the corrected frequency adjustment amount from the current output frequency of the frequency converter to obtain the corrected output frequency of the frequency converter.

[0055] Specifically, after obtaining the corrected frequency adjustment amount, determine whether to increase or decrease the current output frequency of the frequency converter according to the positive or negative value of the adjustment amount. If the corrected frequency adjustment amount is positive, add it to the current output frequency to increase the output frequency of the frequency converter to cope with the situation of excessive tension deviation; if the corrected frequency adjustment amount is negative, subtract it from the current output frequency to reduce the output frequency of the frequency converter to correct the problem of excessive frequency caused by too small tension deviation.

[0056] In one embodiment, as Figure 6 shown, in step S301, that is, based on the deviation characteristics and the deviation degree value, calculate the corrected frequency adjustment amount by applying a preset non - linear correction algorithm to the current output frequency of the frequency converter, including: S3011: Confirm the corrected frequency adjustment amount through the following formula: where Δf is the corrected frequency adjustment amount, k(t) is the time correction coefficient, ΔT is the deviation degree value, γ is the non - linear adjustment index, λ and β are dynamic adjustment parameters, and sgn(ΔT) is the sign function, which determines the direction of the corrected frequency adjustment amount.

[0057] Specifically, based on the deviation degree value ΔT obtained by real-time calculation, the base value of the correction frequency adjustment amount is determined. Then, the non-linear adjustment index γ is applied to non-linearly amplify or reduce the deviation degree value to enhance or weaken the intensity of frequency adjustment. This non-linear processing enables the system to make more significant adjustments when facing large deviations and more subtle adjustments when facing small deviations, avoiding over-adjustment. Next, the dynamic adjustment parameters γ and β in the formula are adjusted in real time according to the actual working conditions, thereby controlling the smoothness and response speed of frequency adjustment. By substituting the deviation degree value ΔT into the formula and combining these adjustment parameters, it can dynamically adapt to different working condition requirements and ensure that the adjustment process is both fast and stable. The time correction coefficient k(t) takes into account the influence of the system operation time to adapt to the adjustment requirements at different stages. Usually, as the system operation time increases, k(t) is gradually adjusted according to a preset time function to ensure that the system can maintain the best adjustment effect at different operation stages. The sign function sgn(ΔT) determines the direction of the correction frequency adjustment amount, ensuring that when the tension deviation is positive (indicating too high tension), the correction frequency adjustment amount is positive, that is, increasing the output frequency; while when the tension deviation is negative (indicating too low tension), the correction frequency adjustment amount is negative, that is, decreasing the output frequency. Finally, the correction frequency adjustment amount Δf calculated by this formula will be used to correct the output frequency of the frequency converter.

[0058] In one embodiment, as Figure 7 shown, in step S40, that is, based on the corrected output frequency of the frequency converter, the operation control information of the wire drawing machine frequency converter is generated to adjust the operation parameters of the wire drawing machine frequency converter, including: S401: Based on the corrected output frequency of the frequency converter, determine the target output frequency of the frequency converter.

[0059] In this embodiment, the target output frequency refers to the working frequency that the frequency converter should reach after correcting the current tension state during the actual operation of the wire drawing machine.

[0060] Specifically, it is calculated based on the corrected output frequency of the frequency converter. The system comprehensively analyzes the current tension state and the corrected frequency, refers to historical data and predetermined production standards, and generates a target output frequency that can meet the current process requirements. This target frequency will be used as the benchmark for subsequent adjustment of the frequency converter to ensure that the frequency converter can continuously operate under stable working conditions.

[0061] S402: According to the target output frequency and in combination with the current operating state of the frequency converter, calculate the required adjustment amount of the operating parameters.

[0062] Specifically, when calculating the adjustment amount of operating parameters, first obtain the current operating state of the frequency converter, including the current output frequency, output voltage, output current, and environmental conditions such as temperature and load conditions. Then, compare the target output frequency with the current operating state to determine the parameter range that needs to be adjusted. For example, if the target output frequency is higher than the current frequency, the system will calculate the power and voltage adjustment amounts required to increase the frequency; if the target output frequency is lower than the current frequency, the system will calculate the voltage reduction and load reduction amounts required to decrease the frequency.

[0063] S403: Generate the operating control information for the wire drawing machine frequency converter according to the required adjustment amount of operating parameters to adjust the operating parameters of the wire drawing machine frequency converter.

[0064] Specifically, when generating the operating control information for the frequency converter, first determine the specific control strategy according to the calculated adjustment amount of operating parameters. The control strategy includes specific frequency adjustment instructions, voltage adjustment instructions, and the time and sequence for executing these instructions. For example, if it is necessary to increase the output frequency of the frequency converter, the control information will indicate to gradually increase the frequency, set the amplitude and interval time for each increase to ensure that the frequency converter can smoothly transition to the target frequency. Similarly, the voltage adjustment instructions will increase or decrease the output voltage of the frequency converter according to the frequency adjustment requirements to ensure the stable operation of the entire system at the new frequency.

[0065] It should be understood that the system is used to monitor and control the stability of the tension during the operation of the wire drawing machine, and maintains the optimal production state by adjusting the output frequency of the frequency converter in real time. This system integrates functions such as tension sensing and identification, error calculation, non-linear correction, frequency adjustment, and operating parameter optimization to ensure that the tension during the wire drawing process is maintained within a predetermined range, thereby improving product quality and production efficiency.

[0066] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0067] In one embodiment, a control device for a wire drawing machine frequency converter is provided, and the control device for the wire drawing machine frequency converter corresponds one-to-one to the control method of the wire drawing machine frequency converter in the above embodiment. As Figure 8 shown, the control device for the wire drawing machine frequency converter includes a tension feedback acquisition module, a tension error calculation module, a frequency correction module, and a frequency converter control adjustment module. The detailed descriptions of each functional module are as follows: The tension feedback acquisition module is used to acquire the wire drawing machine tension feedback information, where the wire drawing machine tension feedback information includes the real-time tension values at multiple detection positions during the wire drawing process; The tension error calculation module is used to calculate the tension error of the wire drawing machine tension feedback information to obtain the real-time tension deviation value; the frequency correction module is used to correct the output frequency of the frequency converter through a non-linear correction algorithm according to the real-time tension deviation value to obtain the corrected output frequency of the frequency converter; The frequency converter control adjustment module is used to generate the wire drawing machine frequency converter operation control information according to the corrected output frequency of the frequency converter to adjust the operation parameters of the wire drawing machine frequency converter.

[0068] Optionally, the tension error calculation module includes: The tension difference calculation sub-module is used to calculate and obtain the difference between the real-time tension value at each detection position in the wire drawing process and the corresponding standard tension value to obtain the tension difference at the detection position; The overall tension error calculation sub-module is used to obtain the overall tension error value by weighted averaging the tension differences at the detection positions according to a predetermined weight coefficient; The deviation characteristic determination sub-module is used to compare the overall tension error value with a preset dynamic threshold to obtain a comparison result, and according to the comparison result, determine the deviation characteristic of the overall tension error value to obtain the real-time tension deviation value.

[0069] Optionally, the overall tension error calculation sub-module includes: The overall tension error formula unit is used to calculate the overall tension error value through the following formula: where w i (t) is the real-time weight coefficient, w i (0) is the weight coefficient of each detection position in the wire drawing process, α is the adjustment coefficient, i is the serial number of each detection position in the wire drawing process, ΔT i (t) is the tension difference at the i-th detection position at time t, T 标准 is the predetermined standard tension value, where n is the total number of detection positions, ΔT 总 (t) is the overall tension error value.

[0070] Optionally, the deviation characteristic determination sub-module includes: The deviation state unit is used to judge whether the overall tension error value exceeds the preset dynamic threshold range according to the comparison result to obtain the deviation state; The deviation degree value unit is used to calculate the difference between the overall tension error value and the preset dynamic threshold for the abnormal state to obtain the deviation degree value, and for the normal state, use the overall tension error value as the deviation degree value; The real-time tension deviation value unit is used to generate the real-time tension deviation value according to the deviation state and the deviation degree value.

[0071] Optionally, the frequency correction module includes: A calibration frequency adjustment quantum module for calculating the current output frequency of the frequency converter based on the real-time tension deviation value through a preset non-linear calibration algorithm to obtain a calibration frequency adjustment amount; A corrected frequency converter output frequency sub-module for adding or subtracting the calibration frequency adjustment amount from the current output frequency of the frequency converter to obtain a corrected frequency converter output frequency.

[0072] Optionally, the calibration frequency adjustment quantum module includes: A calibration frequency adjustment amount formula application module for confirming the calibration frequency adjustment amount through the following formula: where Δf is the calibration frequency adjustment amount, k(t) is the time calibration coefficient, ΔT is the deviation degree value, γ is the non-linear adjustment index, λ and β are dynamic adjustment parameters, and sgn(ΔT) is the sign function, which determines the direction of the calibration frequency adjustment amount.

[0073] Optionally, the frequency converter control adjustment module includes: A target frequency determination sub-module for determining the target output frequency of the frequency converter based on the corrected frequency converter output frequency; an operating parameter calculation sub-module for calculating the required operating parameter adjustment amount according to the target output frequency in combination with the current operating state of the frequency converter; A control information generation sub-module for generating operating control information for the wire drawing machine frequency converter according to the required operating parameter adjustment amount to adjust the operating parameters of the wire drawing machine frequency converter.

[0074] For the specific limitations of the control device of the wire drawing machine frequency converter, reference can be made to the limitations of the control method of the wire drawing machine frequency converter in the above text, which will not be elaborated here. Each module in the above control device of the wire drawing machine frequency converter can be implemented in whole or in part through software, hardware, and their combination. The above modules can be embedded in the processor of the computer device in hardware form or be independent of it, or can be stored in the memory of the computer device in software form so that the processor can call and execute the operations corresponding to the above modules.

[0075] In one embodiment, a computer device is provided. The computer device can be a server, and its internal structure diagram can be as Figure 9As shown in the figure. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, it implements a control method for a wire drawing machine frequency converter.

[0076] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented: Obtain the wire drawing machine tension feedback information, where the wire drawing machine tension feedback information includes the real-time tension values at multiple detection positions during the wire drawing process; Perform a tension error calculation on the wire drawing machine tension feedback information to obtain a real-time tension deviation value; According to the real-time tension deviation value, correct the output frequency of the frequency converter through a non-linear correction algorithm to obtain the corrected output frequency of the frequency converter; Generate wire drawing machine frequency converter operation control information according to the corrected output frequency of the frequency converter to adjust the operation parameters of the wire drawing machine frequency converter.

[0077] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by the processor, the following steps are implemented: Obtain the wire drawing machine tension feedback information, where the wire drawing machine tension feedback information includes the real-time tension values at multiple detection positions during the wire drawing process; Perform a tension error calculation on the wire drawing machine tension feedback information to obtain a real-time tension deviation value; According to the real-time tension deviation value, correct the output frequency of the frequency converter through a non-linear correction algorithm to obtain the corrected output frequency of the frequency converter; Generate wire drawing machine frequency converter operation control information according to the corrected output frequency of the frequency converter to adjust the operation parameters of the wire drawing machine frequency converter.

[0078] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0079] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above division of each functional unit and module is used as an example. In actual applications, the above functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0080] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A control method for a wire drawing machine frequency converter, characterized in that: The control method of the wire drawing machine inverter includes: Obtaining tension feedback information of a wire drawing machine, wherein the tension feedback information of the wire drawing machine includes real-time tension values ​​of multiple detection positions during the wire drawing process; The tension feedback information of the wire drawing machine is used to calculate the tension error to obtain a real-time tension deviation value; According to the real-time tension deviation value, the output frequency of the frequency converter is corrected by a nonlinear correction algorithm to obtain a corrected output frequency of the frequency converter; According to the corrected inverter output frequency, the wire drawing machine inverter operation control information is generated to adjust the operation parameters of the wire drawing machine inverter.

2. The control method of the wire drawing machine inverter according to claim 1, characterized in that: The tension error calculation of the wire drawing machine tension feedback information to obtain a real-time tension deviation value includes: Calculate and obtain the difference between the real-time tension value of each detection position during the wire drawing process and the corresponding standard tension value to obtain the tension difference value of the detection position; Obtaining an overall tension error value by weighted averaging the tension differences at the detection positions according to a predetermined weight coefficient; The overall tension error value is compared with a preset dynamic threshold value to obtain a comparison result, and according to the comparison result, a deviation feature of the overall tension error value is determined to obtain the real-time tension deviation value.

3. The control method of the wire drawing machine inverter according to claim 2, characterized in that: The overall tension error value is obtained by weighted averaging the tension differences at the detection positions according to a predetermined weight coefficient, including: The overall tension error value is calculated by the following formula: Among them, w i (t) is the real-time weight coefficient, w i (0) is the weight coefficient of each detection position in the wire drawing process, α is the adjustment coefficient, i is the serial number of each detection position in the wire drawing process, ΔT i (t) is the tension difference at the i-th detection position at time t, T 标准 is the predetermined standard tension value, Where n is the total number of detection positions, ΔT 总 (t) is the overall tension error value.

4. The control method of the wire drawing machine inverter according to claim 2, characterized in that: The step of comparing the overall tension error value with a preset dynamic threshold value to obtain a comparison result, and determining the deviation characteristic of the overall tension error value according to the comparison result to obtain the real-time tension deviation value includes: According to the comparison result, determining whether the overall tension error value exceeds the preset dynamic threshold range, and obtaining a deviation state; For the abnormal state, the difference between the overall tension error value and the preset dynamic threshold is calculated to obtain a deviation degree value, and for the normal state, the overall tension error value is used as the deviation degree value; The real-time tension deviation value is generated according to the deviation state and the deviation degree value.

5. The control method of the frequency converter of the wire drawing machine according to claim 1, characterized in that: The method of correcting the output frequency of the frequency converter by a nonlinear correction algorithm according to the real-time tension deviation value to obtain a corrected output frequency of the frequency converter includes: Based on the real-time tension deviation value, the current output frequency of the frequency converter is calculated by the preset nonlinear correction algorithm to obtain a correction frequency adjustment amount; The correction frequency adjustment amount is added to or subtracted from the current output frequency of the inverter to obtain a corrected inverter output frequency.

6. The control method of the frequency converter of the wire drawing machine according to claim 5, characterized in that: The method of calculating the current output frequency of the frequency converter based on the real-time tension deviation value by using the preset nonlinear correction algorithm to obtain a correction frequency adjustment amount includes: The correction frequency adjustment amount is determined by the following formula: Among them, Δf is the correction frequency adjustment amount, k(t) is the time correction coefficient, ΔT is the deviation degree value, γ is the nonlinear adjustment index, λ and β are dynamic adjustment parameters, and sgn(ΔT) is the sign function that determines the direction of the correction frequency adjustment amount.

7. The control method of the frequency converter of the wire drawing machine according to claim 1, characterized in that: The step of generating the inverter operation control information of the wire drawing machine according to the corrected inverter output frequency to adjust the operation parameters of the inverter of the wire drawing machine includes: Determining a target output frequency of the frequency converter based on the corrected frequency converter output frequency; Calculating the required operating parameter adjustment amount according to the target output frequency and the current operating state of the frequency converter; According to the required operating parameter adjustment amount, the wire drawing machine inverter operation control information is generated to adjust the operating parameters of the wire drawing machine inverter.

8. A control device for a frequency converter of a wire drawing machine, characterized in that: The control device of the wire drawing machine frequency converter comprises: A tension feedback acquisition module, used to acquire tension feedback information of a wire drawing machine, wherein the tension feedback information of the wire drawing machine includes real-time tension values ​​of multiple detection positions during the wire drawing process; A tension error calculation module is used to calculate the tension error of the wire drawing machine tension feedback information to obtain a real-time tension deviation value; A frequency correction module, used to correct the output frequency of the frequency converter by a nonlinear correction algorithm according to the real-time tension deviation value, so as to obtain a corrected output frequency of the frequency converter; The inverter control adjustment module is used to generate the wire drawing machine inverter operation control information according to the corrected inverter output frequency to adjust the operation parameters of the wire drawing machine inverter.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the control method of the wire drawing machine inverter as claimed in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the control method of the wire drawing machine inverter as claimed in any one of claims 1 to 7 are implemented.

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