Pump set electromechanical equipment electrical data acquisition method and system

Abstract

The invention discloses an electrical data acquisition method and system for pump set electromechanical equipment, and relates to the technical field of electrical data acquisition, and the method comprises the steps: acquiring electrical data of the pump set electromechanical equipment, monitoring the acquisition process in real time, and transmitting the acquired electrical data to a data management center, the collected electrical data of the pump set electromechanical equipment comprises real-time data and historical data, the collected electrical data are preprocessed, the preprocessed data are analyzed, electrical performance interference factors are extracted, the electrical performance interference factors comprise electromagnetic interference factors and temperature interference factors, and on the basis of the preprocessed historical data, the electrical performance interference factors of the pump set electromechanical equipment are analyzed. And an electromagnetic interference factor and a temperature interference factor are combined. By monitoring and analyzing the key electrical parameters of the equipment in real time, such as the electromagnetic interference index and the temperature interference index, operation and maintenance personnel can find potential electrical problems in time, the risk of accidental shutdown is reduced, and casualties and property loss caused by equipment faults are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical data acquisition, and in particular to a method and system for acquiring electrical data of electromechanical equipment of a pump group. Background Art

[0002] In the power, petrochemical, steel, water treatment and other industries, pump group electromechanical equipment is the key equipment in the production process. The operating status of these equipment directly affects the production efficiency, product quality and production cost. As the demand for energy conservation and emission reduction of enterprises is getting higher and higher, the real-time and accurate collection and analysis of the electrical data of these equipment is of great significance for improving production efficiency, reducing failure rate and optimizing resource allocation. With the continuous development of sensor technology, communication technology and data processing technology, the electrical data collection method has gradually changed from traditional manual recording and offline analysis to real-time collection and online analysis. The progress of these technologies has provided strong support for the application of electrical data collection methods for pump group electromechanical equipment.

[0003] In the prior art, the electrical performance detection of the electromechanical equipment of the pump group can timely discover the electrical problems of the equipment, such as short circuit, overload, leakage, etc., so as to avoid the failure of the equipment during operation, causing casualties or property losses. The electrical performance detection requires high-precision measuring instruments and accurate detection methods to ensure the accuracy of the detection results. However, in actual operation, the environment and operating state of the electromechanical equipment of the pump group often have a certain impact on the detection process. Specifically, the electromechanical equipment of the pump group may be interfered by the electromagnetic environment during operation. The electromagnetic interference will not only affect the normal operation of the measuring equipment, but also cause fluctuations or errors in its readings, thereby affecting the accuracy of the detection results. In addition, with the continuous operation of the electromechanical equipment of the pump group, its internal temperature will gradually increase. The high temperature environment will have an adverse effect on the performance of the measuring equipment, resulting in a decrease in sensor sensitivity and changes in circuit parameters. These factors may cause the measuring equipment to have deviations when reading data, thereby affecting the reliability of the detection results. Therefore, improving the accuracy of electrical performance detection is a problem we need to solve. To this end, a method and system for collecting electrical data of electromechanical equipment of a pump group are proposed. Summary of the invention

[0004] The object of the present invention is to provide a method and system for collecting electrical data of electromechanical equipment of a pump group, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] In a first aspect, a method and system for collecting electrical data of electromechanical equipment of a pump group comprises the following steps:

[0007] Step 1, collecting electrical data of the electromechanical equipment of the pump group, monitoring the collection process in real time, ensuring the stability and continuity of data collection, and transmitting the collected electrical data to the data management center, wherein the collected electrical data of the electromechanical equipment of the pump group includes real-time data and historical data;

[0008] Step 2, preprocessing the collected electrical data, and analyzing the preprocessed data to extract electrical performance interference factors, wherein the electrical performance interference factors include electromagnetic interference factors and temperature interference factors;

[0009] Step 3, based on the pre-processed historical data, and in combination with the electromagnetic interference factor and the temperature interference factor, the electromagnetic interference index and the temperature interference index are calculated to analyze the operating status and change trend of the performance of the electromechanical equipment of the pump group;

[0010] Step 4: Obtain an electrical performance evaluation coefficient based on the electromagnetic interference index and the temperature interference index, determine different abnormal levels of electrical performance abnormalities in combination with preprocessed historical data, and set abnormal evaluation thresholds for different abnormal levels;

[0011] Step 5, based on the preprocessed real-time data, obtain the electrical performance evaluation coefficient and determine the abnormality level. According to the abnormality level, generate an abnormal data analysis list, list abnormal data points, abnormality types, abnormality levels and other information, and then output the corresponding compensation plan. The compensation plan may include adjusting equipment parameters, repairing or replacing faulty parts, optimizing the operating environment, etc.

[0012] A further improvement of the technical solution of the present invention is that in step 1, the process of collecting electrical data of the electromechanical equipment of the pump group is:

[0013] Step 101, clarify the acquisition target, determine the type of electrical data to be collected, such as current, voltage, power factor, etc., and determine the accuracy and frequency requirements of data acquisition;

[0014] Step 102, select measurement equipment. According to the acquisition target, select high-precision, low-noise measurement equipment, such as high-precision ammeter, voltmeter, power factor meter, etc., ensure that the measurement equipment has electromagnetic shielding and filtering functions to reduce electromagnetic interference, deploy sensors and measurement equipment, set acquisition parameters, such as sampling rate, range, etc., ensure that the acquisition parameters meet the accuracy and frequency requirements of data acquisition, and transmit the collected data to the data management center in real time to ensure the integrity and accuracy of the data and avoid data loss or damage;

[0015] Step 103, obtain historical data of electrical data from previous public databases, and verify the acquired historical data, wherein a database is simultaneously established in the data management center to store and manage the collected real-time data and historical data, the historical data including voltage data, current data, power data, frequency data and temperature data, voltage data: record the voltage value of the equipment when it is working, including the rated voltage, the actual working voltage and its fluctuation, current data: monitor the current value of the equipment when it is working, including the rated current, the actual working current and its changing trend, power data: record the power output of the equipment, including active power, reactive power and total power, etc., frequency data: monitor the power supply frequency of the equipment when it is working to ensure that it fluctuates within the specified range, temperature data: record the temperature of key components of the equipment, such as the motor winding temperature, the bearing temperature, etc., to evaluate the thermal state of the equipment.

[0016] A further improvement of the technical solution of the present invention is that in step 2, the process of extracting the electrical performance interference factor is:

[0017] Step 201, performing pre-processing operations of data cleaning, data conversion and data correction on the collected historical data and real-time data to eliminate data errors;

[0018] Step 202: Analyze the preprocessed data and extract key features. Perform feature extraction on the long-term trend and periodic change of temperature data and the harmonic component of frequency data to obtain electrical performance interference factors, specifically electromagnetic interference factors and temperature interference factors. Evaluate the impact of temperature on electrical performance, identify the impact of temperature anomalies on equipment, evaluate the impact of frequency changes on electrical performance, and identify electromagnetic interference sources.

[0019] Step 203, based on the extracted electrical performance interference factor and combined with the pre-processed historical data, obtain the correlation data of the electromagnetic interference factor and the temperature interference factor, analyze the change trend of the electromagnetic interference factor over time, and the correlation between the temperature interference factor and the equipment failure rate and energy efficiency ratio.

[0020] A further improvement of the technical solution of the present invention is that in step 3, the process of obtaining the electromagnetic interference index and the temperature interference index is:

[0021] Step 301, integrating the correlation data of the electromagnetic interference factor and the temperature interference factor in the pre-processed historical data to form a unified data set;

[0022] Step 302, feature encoding is performed on the associated data of the electromagnetic interference factor and the temperature interference factor in the data set, such as the electromagnetic interference intensity, the temperature fluctuation range, the temperature change rate, etc., to construct an electrical performance evaluation model;

[0023] Step 303, dividing the integrated data set into a training set, a validation set and a test set, using the training set data to train the electrical performance evaluation model, and using the validation set and the test set data to verify the trained electrical performance evaluation model, evaluating the performance of the electrical performance evaluation model, and predicting the electrical performance interference of the electromechanical equipment of the pump group;

[0024] Step 304, obtaining an electromagnetic interference index and a temperature interference index based on the electrical performance evaluation model and in combination with the preprocessed electrical data;

[0025] Step 305, through the temperature interference index, analyze the change of equipment energy efficiency and the abnormal change trend of equipment temperature. At the same time, through the temperature interference index, analyze the electromagnetic environment of the pump group electromechanical equipment, predict the evolution of electromagnetic interference of the pump group electromechanical equipment, identify periodic changes, long-term trends and other characteristics, provide guidance for equipment maintenance and optimization, combine the electromagnetic interference index and the temperature interference index, conduct a comprehensive analysis of the electrical performance of the pump group electromechanical equipment, and predict future electrical performance interference.

[0026] A further improvement of the technical solution of the present invention is that the calculation formula of the electromagnetic interference index is: ;

[0027] in, is the electromagnetic interference index, For the The measured value of the electromagnetic interference factor, is the standard value of the electromagnetic interference factor, is the maximum value of the electromagnetic interference factor, is the minimum value of the electromagnetic interference factor, For the The weight coefficient of each electromagnetic interference factor reflects its importance to the electromagnetic interference index. for other variables that affect electromagnetic interference;

[0028] The calculation formula of the temperature interference index is: ;

[0029] in, is the temperature interference index, For the The measured value of the temperature interference factor,

[0030] is the reference temperature or base temperature, is the maximum value of the temperature interference factor, is the minimum value of the temperature interference factor, is the number of temperature interference factors, is the temperature change, is the rate of temperature change, are other parameters that affect temperature interference.

[0031] A further improvement of the technical solution of the present invention is that in step 4, the process of obtaining the electrical performance evaluation coefficient is:

[0032] Step 401, traverse the pre-processed historical data, combine the electromagnetic interference index and the temperature interference index, analyze the operating conditions of the electromechanical equipment of the pump group, and predict the correlation between the interference of electrical performance and the electromagnetic interference index and the temperature interference index, and observe the change trend of the electromagnetic interference index and the temperature interference index and their correlation with the operating conditions of the electromechanical equipment of the pump group through visualization means such as scatter plots and trend graphs;

[0033] Step 402, normalizing the electromagnetic interference index and the temperature interference index, matching different weights, performing weighted calculation on the two indexes, and obtaining an electrical performance evaluation coefficient;

[0034] Step 403, using the pre-processed historical data, analyzing the distribution of the electrical performance evaluation coefficients, observing the distribution characteristics of the electrical performance evaluation coefficients through visualization means such as histograms and box plots, and matching the electrical performance interference in the historical data to determine different abnormality levels, namely, a slight abnormality level, a moderate abnormality level, and a severe abnormality level, wherein the abnormality level of the electrical performance interference increases step by step from the slight abnormality level to the severe abnormality level;

[0035] Step 404, matching the determined different abnormal levels with the results of the electrical performance evaluation coefficient, and setting corresponding abnormal thresholds for the different abnormal levels;

[0036] Step 405: Arrange all the electrical performance evaluation coefficient values ​​in descending order, and assign a corresponding abnormality level to each electrical performance evaluation coefficient value according to a set abnormality threshold.

[0037] A further improvement of the technical solution of the present invention is that the calculation formula of the electrical performance evaluation coefficient is: ;

[0038] in, is the electrical performance evaluation coefficient, is the electromagnetic interference index, is the temperature interference index, is the standard value of the electromagnetic interference index, is the standard value of the temperature interference index, is the optimal value of the electromagnetic interference index, is the optimal value of the temperature interference index, is the acceptable range of the electromagnetic interference index, that is, the difference between the upper and lower limits of the allowed fluctuation. is the acceptable range of the temperature interference index, that is, the difference between the upper and lower limits of the allowed fluctuation. is the weight of the electromagnetic interference index, is the weight of the temperature interference index, , They are adjustment coefficients used to control the electromagnetic interference index and temperature interference index when they deviate from the optimal value. degree of punishment.

[0039] A further improvement of the technical solution of the present invention is that: the multiple abnormal levels correspond to multiple abnormal thresholds, wherein the abnormal thresholds include an upper threshold and a lower threshold;

[0040] The multiple abnormal levels and the multiple abnormal thresholds satisfy the following relationship:

[0041] Slight abnormality level ;

[0042] Moderate abnormality level ;

[0043] Severe abnormality level ;

[0044] in, is the electrical performance evaluation coefficient, is the upper threshold corresponding to the slight abnormality level and the lower threshold corresponding to the moderate abnormality level, It is the upper threshold corresponding to the moderate abnormality level and the lower threshold corresponding to the severe abnormality level.

[0045] A further improvement of the technical solution of the present invention is that in step 5, the process of obtaining the abnormal data analysis list and the process of obtaining the compensation solution are as follows:

[0046] Step 501, inputting the preprocessed real-time data into the electrical performance evaluation model to calculate the electromagnetic interference index and the temperature interference index respectively;

[0047] Step 502, combining the calculated electromagnetic interference index and temperature interference index to obtain an electrical performance evaluation coefficient, and determining the abnormal level of the current electrical performance interference situation according to a preset abnormal threshold, and generating an abnormal data analysis list;

[0048] Step 503, perform in-depth analysis based on the abnormal data analysis list to find the cause of the abnormal electrical performance, such as equipment failure, environmental factors, etc., determine the type of abnormal electrical performance, such as electromagnetic interference, temperature change, etc., and determine appropriate compensation measures based on the abnormal level and the abnormal data analysis list;

[0049] Step 504, convert the determined compensation measures into specific compensation plans, including the implementation steps of the compensation measures, the required resources, the expected effects, etc., and execute the compensation plans and monitor their effects. If the compensation measures fail to achieve the expected effects, adjust the plans in a timely manner and re-execute them. If the anomaly is caused by electromagnetic interference, measures such as strengthening shielding and adjusting equipment layout can be taken; if the anomaly is caused by temperature changes, measures such as strengthening heat dissipation and adjusting the operating temperature can be taken.

[0050] In a second aspect, an electrical data acquisition system for electromechanical equipment of a pump group includes a data management center, wherein the data management center is communicatively connected with a data acquisition module, a data processing module, a communication module, a data monitoring module, an early warning module and a safety protection module, wherein electrical signals are connected between the modules;

[0051] The data acquisition module is used to collect various electrical data in the pump station, including the water level of the water tank, the inlet and outlet water pressure, flow, current, voltage, power, and the start and stop status of the pump group;

[0052] The data processing module is used to analyze, calculate and judge the collected electrical data, extract key features, such as the operating status, energy consumption, fault warning, etc. of the pump group, and provide decision support for equipment maintenance and management;

[0053] The communication module is used to transmit the processed electrical data to the data management center, realize the remote transmission and sharing of electrical data, and facilitate the management personnel to monitor and manage the pump group anytime and anywhere;

[0054] The data monitoring module is used to monitor the electrical data of the electromechanical equipment of the pump group, detect abnormalities and faults, and provide real-time data feedback so that management personnel can understand the operating status of the equipment in a timely manner;

[0055] The early warning module is used to automatically send alarm information to management personnel when the data monitoring module detects abnormal data and equipment failure, including sound alarm, light alarm, SMS notification and other methods, so that timely measures can be taken;

[0056] The safety protection module is used to execute protection measures, such as automatic shutdown, etc., when abnormal data and equipment failure are detected, so as to prevent equipment damage and accidents.

[0057] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0058] 1. The present invention provides a method and system for collecting electrical data of electromechanical equipment of a pump group. By real-time monitoring and analyzing key electrical parameters of the equipment, such as the electromagnetic interference index and the temperature interference index, operation and maintenance personnel can promptly discover potential electrical problems, reduce the risk of unexpected shutdown, and avoid casualties and property losses caused by equipment failure. This not only reduces equipment downtime, but also improves the safety and reliability of the equipment.

[0059] 2. The present invention provides a method and system for collecting electrical data of electromechanical equipment of a pump group. By analyzing the collected data, the specific reasons for the decline in equipment performance are found out, so that maintenance personnel can quickly find the problem and take targeted maintenance measures, thereby reducing maintenance time and costs. At the same time, through the analysis of historical data, the future operating status of the equipment can also be predicted, further reducing maintenance costs.

[0060] 3. The present invention provides a method and system for collecting electrical data of electromechanical equipment of a pump group. The electrical data collection system for electromechanical equipment of a pump group can timely discover abnormal conditions of equipment operation by real-time monitoring of various electrical data. When the data monitoring module detects abnormal data or equipment failure, the early warning module will start immediately and send alarm information to management personnel in various ways, effectively avoiding production interruptions or safety accidents caused by equipment failure. At the same time, the system can also record the equipment's operating history data, providing strong support for subsequent fault analysis and equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0062] Figure 1 is a flow chart of the method of the present invention;

[0063] Figure 2 The flowchart of obtaining the electromagnetic interference index and the temperature interference index of the present invention;

[0064] Figure 3 A flow chart for obtaining the electrical performance evaluation coefficient of the present invention;

[0065] Figure 4 It is a module structure diagram of the present invention. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0067] Embodiment 1, as Figures 1 to 4 As shown, the present invention provides a method and system for collecting electrical data of electromechanical equipment of a pump group, comprising the following steps:

[0068] Step 1, collect electrical data of the electromechanical equipment of the pump group, monitor the collection process in real time, ensure the stability and continuity of data collection, and transmit the collected electrical data to the data management center, where the collected electrical data of the electromechanical equipment of the pump group includes real-time data and historical data; the collection process of the electrical data of the electromechanical equipment of the pump group is: clarify the collection target, determine the type of electrical data to be collected, such as current, voltage, power factor, etc., and determine the accuracy and frequency requirements of data collection, select measurement equipment, according to the collection target, select high-precision, low-noise measurement equipment, such as high-precision ammeter, voltmeter, power factor meter, etc., ensure that the measurement equipment has electromagnetic shielding and filtering functions to reduce electromagnetic interference, deploy sensors and measurement equipment, set collection parameters, such as sampling rate, range, etc., ensure that the collection parameters meet the accuracy and frequency requirements of data collection, and transmit the collected data to the data management center in real time to ensure data The integrity and accuracy of the equipment shall be ensured to avoid data loss or damage. The historical data of electrical data shall be obtained from the previous public databases and verified. At the same time, a database shall be established in the data management center to store and manage the collected real-time data and historical data. The historical data includes voltage data, current data, power data, frequency data and temperature data. Voltage data: record the voltage value of the equipment when it is working, including the rated voltage, the actual working voltage and its fluctuation. Current data: monitor the current value of the equipment when it is working, including the rated current, the actual working current and its changing trend. Power data: record the power output of the equipment, including active power, reactive power and total power, etc. Frequency data: monitor the power supply frequency of the equipment when it is working to ensure that it fluctuates within the specified range. Temperature data: record the temperature of key components of the equipment, such as motor winding temperature, bearing temperature, etc., to evaluate the thermal state of the equipment.

[0069] Step 2, preprocessing the collected electrical data, analyzing the preprocessed data, and extracting electrical performance interference factors, wherein the electrical performance interference factors include electromagnetic interference factors and temperature interference factors; the process of extracting electrical performance interference factors is: performing preprocessing operations of data cleaning, data conversion, and data correction on the collected historical data and real-time data to eliminate data errors, analyzing the preprocessed data and extracting key features, respectively extracting features for the long-term trend and periodic changes of temperature data and the harmonic components of frequency data, obtaining electrical performance interference factors, specifically electromagnetic interference factors and temperature interference factors, evaluating the impact of temperature on electrical performance, identifying the impact of temperature anomalies on equipment, and evaluating the impact of frequency changes on electrical performance, identifying electromagnetic interference sources, based on the extracted electrical performance interference factors and combined with the preprocessed historical data, obtaining correlation data of electromagnetic interference factors and temperature interference factors, analyzing the trend of electromagnetic interference factors over time, and the correlation between temperature interference factors and equipment failure rate and energy efficiency ratio;

[0070] Step 3, based on the preprocessed historical data, and combined with the electromagnetic interference factor and the temperature interference factor, the electromagnetic interference index and the temperature interference index are calculated to analyze the operating status and change trend of the performance of the electromechanical equipment of the pump group; the process of obtaining the electromagnetic interference index and the temperature interference index is: integrating the associated data of the electromagnetic interference factor and the temperature interference factor in the preprocessed historical data to form a unified data set, and encoding the features of the associated data of the electromagnetic interference factor and the temperature interference factor in the data set, such as electromagnetic interference intensity, temperature fluctuation range, temperature change rate, etc., to build an electrical performance evaluation model, divide the integrated data set into a training set, a validation set and a test set, use the training set data to train the electrical performance evaluation model, and use the validation set and the test set data to train the electrical performance evaluation model. The trained electrical performance evaluation model is verified by the data, the performance of the electrical performance evaluation model is evaluated, and the electrical performance interference of the electromechanical equipment of the pump group is predicted. Based on the electrical performance evaluation model and combined with the pre-processed electrical data, the electromagnetic interference index and temperature interference index are obtained. The changes in the energy efficiency of the equipment and the abnormal temperature change trend of the equipment are analyzed through the temperature interference index. At the same time, the electromagnetic environment of the electromechanical equipment of the pump group is analyzed through the temperature interference index, and the evolution of the electromagnetic interference of the electromechanical equipment of the pump group is predicted. The characteristics such as periodic changes and long-term trends are identified to provide guidance for equipment maintenance and optimization. Combined with the electromagnetic interference index and the temperature interference index, the electrical performance of the electromechanical equipment of the pump group is comprehensively analyzed, and the future electrical performance interference is predicted;

[0071] Step 4, according to the electromagnetic interference index and the temperature interference index, obtain the electrical performance evaluation coefficient, and determine the different abnormal levels of electrical performance abnormalities in combination with the pre-processed historical data, and set abnormal evaluation thresholds for different abnormal levels; the process of obtaining the electrical performance evaluation coefficient is as follows: traverse the pre-processed historical data, combine the electromagnetic interference index and the temperature interference index, analyze the operating conditions of the electromechanical equipment of the pump group, and predict the degree of correlation between the interference of the electrical performance and the electromagnetic interference index and the temperature interference index. Through visualization methods such as scatter plots and trend charts, observe the changing trends of the electromagnetic interference index and the temperature interference index and their correlation with the operating conditions of the electromechanical equipment of the pump group, normalize the electromagnetic interference index and the temperature interference index, match different weights, and perform weighting on the two indexes. Perform weighted calculation to obtain the electrical performance evaluation coefficient, use the preprocessed historical data to analyze the distribution of the electrical performance evaluation coefficient, observe the distribution characteristics of the electrical performance evaluation coefficient through visualization methods such as histograms and box plots, and match the electrical performance interference in the historical data to determine different abnormality levels, namely, slight abnormality level, moderate abnormality level, and severe abnormality level. Among them, the electrical performance interference of the abnormal level increases step by step from slight abnormality level to severe abnormality level. Match the determined different abnormality levels with the results of the electrical performance evaluation coefficient, set corresponding abnormality thresholds for different abnormality levels, arrange all electrical performance evaluation coefficient values ​​in order from high to low, and assign corresponding abnormality levels to each electrical performance evaluation coefficient value according to the set abnormality threshold.

[0072] Step 5, based on the pre-processed real-time data, obtain the electrical performance evaluation coefficient and determine the abnormality level, generate an abnormal data analysis list according to the abnormality level, list the abnormal data points, abnormality types, abnormality levels and other information, and then output the corresponding compensation plan, which may include adjusting equipment parameters, repairing or replacing faulty parts, optimizing the operating environment, etc.; the process of obtaining the abnormal data analysis list and the process of obtaining the compensation plan are as follows: input the pre-processed real-time data into the electrical performance evaluation model, calculate the electromagnetic interference index and the temperature interference index respectively, combine the calculated electromagnetic interference index and temperature interference index to obtain the electrical performance evaluation coefficient, and determine the abnormality level of the current electrical performance interference situation according to the preset abnormality threshold, and generate an abnormal Normal data analysis list, conduct in-depth analysis based on the abnormal data analysis list, find the cause of abnormal electrical performance, such as equipment failure, environmental factors, etc., determine the type of abnormal electrical performance, such as electromagnetic interference, temperature change, etc., and determine appropriate compensation measures based on the abnormal level and abnormal data analysis list, and convert the determined compensation measures into specific compensation plans, including the implementation steps of the compensation measures, required resources, expected effects, etc., and implement the compensation plan and monitor its effect. If the compensation measures fail to achieve the expected effect, adjust the plan in time and re-execute it. If the abnormality is caused by electromagnetic interference, you can take measures such as strengthening shielding and adjusting equipment layout; if the abnormality is caused by temperature change, you can take measures such as strengthening heat dissipation and adjusting the working temperature.

[0073] Embodiment 2, as Figures 1 to 4 As shown, based on Example 1, the present invention provides a technical solution: Preferably, the calculation formula of the electromagnetic interference index is: ;

[0074] in, is the electromagnetic interference index, For the The measured value of the electromagnetic interference factor, is the standard value of the electromagnetic interference factor, is the maximum value of the electromagnetic interference factor, is the minimum value of the electromagnetic interference factor, For the The weight coefficient of each electromagnetic interference factor reflects its importance to the electromagnetic interference index. for other variables that affect electromagnetic interference;

[0075] The calculation formula of temperature interference index is: ;

[0076] in, is the temperature interference index, For the The measured value of the temperature interference factor,

[0077] is the reference temperature or base temperature, is the maximum value of the temperature interference factor, is the minimum value of the temperature interference factor, is the number of temperature interference factors, is the temperature change, is the rate of temperature change, are other parameters that affect temperature disturbance;

[0078] The calculation formula of the electrical performance evaluation coefficient is: ;

[0079] in, is the electrical performance evaluation coefficient, is the electromagnetic interference index, is the temperature interference index, is the standard value of the electromagnetic interference index, is the standard value of the temperature interference index, is the optimal value of the electromagnetic interference index, is the optimal value of the temperature interference index, is the acceptable range of the electromagnetic interference index, that is, the difference between the upper and lower limits of the allowed fluctuation. is the acceptable range of the temperature interference index, that is, the difference between the upper and lower limits of the allowed fluctuation. is the weight of the electromagnetic interference index, is the weight of the temperature interference index, , They are adjustment coefficients used to control the electromagnetic interference index and temperature interference index when they deviate from the optimal value. the degree of punishment;

[0080] Multiple abnormality levels correspond to multiple abnormality thresholds, where the abnormality threshold includes an upper threshold and a lower threshold;

[0081] Multiple abnormal levels and multiple abnormal thresholds satisfy the following relationship:

[0082] Slight abnormality level ;

[0083] Moderate abnormality level ;

[0084] Severe abnormality level ;

[0085] in, is the electrical performance evaluation coefficient, is the upper threshold corresponding to the slight abnormality level and the lower threshold corresponding to the moderate abnormality level, It is the upper threshold corresponding to the moderate abnormality level and the lower threshold corresponding to the severe abnormality level.

[0086] Embodiment 3, as Figures 1 to 4 As shown, on the basis of Embodiment 1-2, the present invention provides an electrical data acquisition system for electromechanical equipment of a pump group, including a data management center, the data management center is communicatively connected with a data acquisition module, a data processing module, a communication module, a data monitoring module, an early warning module and a safety protection module, wherein electrical signals are connected between the modules;

[0087] The data acquisition module is used to collect various electrical data in the pump station, including the water level of the pool, the inlet and outlet water pressure, flow, current, voltage, power, and the start and stop status of the pump group;

[0088] The data processing module is used to analyze, calculate and judge the collected electrical data, extract key features such as the operating status, energy consumption, fault warning, etc. of the pump group, and provide decision support for equipment maintenance and management;

[0089] Communication module, used to transmit processed electrical data to the data management center, realize remote transmission and sharing of electrical data, and facilitate management personnel to monitor and manage the pump group anytime and anywhere;

[0090] Data monitoring module, used to monitor the electrical data of the pump unit electromechanical equipment, detect abnormalities and faults, and provide real-time data feedback so that management personnel can understand the operating status of the equipment in a timely manner;

[0091] The early warning module is used to automatically send alarm information to management personnel when the data monitoring module detects abnormal data and equipment failures, including sound alarms, light alarms, SMS notifications, etc., so that timely measures can be taken;

[0092] The safety protection module is used to execute protection measures, such as automatic shutdown, when abnormal data and equipment failure are detected to prevent equipment damage and accidents.

[0093] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for collecting electrical data of electromechanical equipment of a pump group, characterized in that: The following steps are involved: Step 1, collecting electrical data of the electromechanical equipment of the pump group, monitoring the collection process in real time, and transmitting the collected electrical data to the data management center, wherein the collected electrical data of the electromechanical equipment of the pump group includes real-time data and historical data; Step 2, preprocessing the collected electrical data, and analyzing the preprocessed data to extract electrical performance interference factors, wherein the electrical performance interference factors include electromagnetic interference factors and temperature interference factors; Step 3, based on the pre-processed historical data, and in combination with the electromagnetic interference factor and the temperature interference factor, the electromagnetic interference index and the temperature interference index are calculated to analyze the operating status and change trend of the performance of the electromechanical equipment of the pump group; Step 4: Obtain an electrical performance evaluation coefficient based on the electromagnetic interference index and the temperature interference index, determine different abnormal levels of electrical performance abnormalities in combination with preprocessed historical data, and set abnormal evaluation thresholds for different abnormal levels; Step 5: Based on the pre-processed real-time data, obtain the electrical performance evaluation coefficient and determine the abnormality level. According to the abnormality level, generate an abnormal data analysis list and output the corresponding compensation plan.

2. A method for collecting electrical data of electromechanical equipment of a pump group according to claim 1, characterized in that: In step 1, the process of collecting electrical data of the electromechanical equipment of the pump group is as follows: Step 101, clarify the acquisition target, determine the type of electrical data to be collected, and determine the accuracy and frequency requirements of data acquisition; Step 102, select measurement equipment, deploy sensors and measurement equipment according to the collection target, set collection parameters, and transmit the collected data to the data management center in real time; Step 103, obtain historical data of electrical data from previous public databases and verify the acquired historical data, wherein a database is simultaneously established in the data management center to store and manage the collected real-time data and historical data, the historical data including voltage data, current data, power data, frequency data and temperature data.

3. A method for collecting electrical data of electromechanical equipment of a pump group according to claim 2, characterized in that: In step 2, the process of extracting the electrical performance interference factor is as follows: Step 201, performing pre-processing operations of data cleaning, data conversion and data correction on the collected historical data and real-time data to eliminate data errors; Step 202, analyzing the preprocessed data and extracting key features, respectively extracting features for the long-term trend and periodic change of the temperature data and the harmonic components of the frequency data, to obtain electrical performance interference factors, specifically electromagnetic interference factors and temperature interference factors; Step 203, based on the extracted electrical performance interference factor and combined with the pre-processed historical data, obtain the correlation data of the electromagnetic interference factor and the temperature interference factor, analyze the change trend of the electromagnetic interference factor over time, and the correlation between the temperature interference factor and the equipment failure rate and energy efficiency ratio.

4. A method for collecting electrical data of electromechanical equipment of a pump group according to claim 3, characterized in that: In step 3, the process of obtaining the electromagnetic interference index and the temperature interference index is as follows: Step 301, integrating the correlation data of the electromagnetic interference factor and the temperature interference factor in the pre-processed historical data to form a unified data set; Step 302, feature encoding the associated data of the electromagnetic interference factor and the temperature interference factor in the data set to construct an electrical performance evaluation model; Step 303, dividing the integrated data set into a training set, a validation set and a test set, using the training set data to train the electrical performance evaluation model, and using the validation set and the test set data to verify the trained electrical performance evaluation model, evaluating the performance of the electrical performance evaluation model, and predicting the electrical performance interference of the electromechanical equipment of the pump group; Step 304, obtaining an electromagnetic interference index and a temperature interference index based on the electrical performance evaluation model and in combination with the preprocessed electrical data; Step 305, using the temperature interference index, analyzes the change in equipment energy efficiency and the abnormal change trend of equipment temperature. At the same time, using the temperature interference index, analyzes the electromagnetic environment of the pump group electromechanical equipment and predicts the evolution of electromagnetic interference to the pump group electromechanical equipment.

5. A method for collecting electrical data of electromechanical equipment of a pump group according to claim 4, characterized in that: The calculation formula of the electromagnetic interference index is: ； in, is the electromagnetic interference index, For the The measured value of the electromagnetic interference factor, is the standard value of the electromagnetic interference factor, is the maximum value of the electromagnetic interference factor, is the minimum value of the electromagnetic interference factor, For the The weight coefficient of the electromagnetic interference factor, For other variables that affect electromagnetic interference; The calculation formula of the temperature interference index is: ； in, is the temperature interference index, For the The measured value of the temperature interference factor, is the reference temperature or base temperature, is the maximum value of the temperature interference factor, is the minimum value of the temperature interference factor, is the number of temperature interference factors, is the temperature change, is the rate of temperature change, are other parameters that affect temperature interference.

6. A method for collecting electrical data of electromechanical equipment of a pump group according to claim 5, characterized in that: In step 4, the process of obtaining the electrical performance evaluation coefficient is as follows: Step 401, traverse the pre-processed historical data, combine the electromagnetic interference index and the temperature interference index, analyze the operating conditions of the electromechanical equipment of the pump group, and predict the correlation between the interference of the electrical performance and the electromagnetic interference index and the temperature interference index; Step 402, normalizing the electromagnetic interference index and the temperature interference index, matching different weights, performing weighted calculation on the two indexes, and obtaining an electrical performance evaluation coefficient; Step 403, using the pre-processed historical data, analyzing the distribution of the electrical performance evaluation coefficient, and matching the electrical performance interference in the historical data, to determine different abnormality levels, namely, a slight abnormality level, a moderate abnormality level, and a severe abnormality level; Step 404, matching the determined different abnormality levels with the results of the electrical performance evaluation coefficient, and setting corresponding abnormality thresholds for the different abnormality levels; Step 405: Arrange all the electrical performance evaluation coefficient values ​​in descending order, and assign a corresponding abnormality level to each electrical performance evaluation coefficient value according to a set abnormality threshold.

7. A method for collecting electrical data of electromechanical equipment of a pump group according to claim 6, characterized in that: The calculation formula of the electrical performance evaluation coefficient is: ； in, is the electrical performance evaluation coefficient, is the electromagnetic interference index, is the temperature interference index, is the standard value of the electromagnetic interference index, is the standard value of the temperature interference index, is the optimal value of the electromagnetic interference index, is the optimal value of the temperature interference index, is the acceptable range of electromagnetic interference index, is the acceptable range of the temperature interference index, is the weight of the electromagnetic interference index, is the weight of the temperature interference index, , Both are adjustment factors.

8. A method for collecting electrical data of electromechanical equipment of a pump group according to claim 7, characterized in that: The plurality of abnormal levels correspond to the plurality of abnormal thresholds, wherein the abnormal thresholds include an upper threshold and a lower threshold; The multiple abnormal levels and the multiple abnormal thresholds satisfy the following relationship: Slight abnormality level ; Moderate abnormality level ; Severe abnormality level ; in, is the electrical performance evaluation coefficient, is the upper threshold corresponding to the slight abnormality level and the lower threshold corresponding to the moderate abnormality level, It is the upper threshold corresponding to the moderate abnormality level and the lower threshold corresponding to the severe abnormality level.

9. A method for collecting electrical data of electromechanical equipment of a pump group according to claim 8, characterized in that: In step 5, the process of obtaining the abnormal data analysis list and the process of obtaining the compensation plan are as follows: Step 501, inputting the preprocessed real-time data into the electrical performance evaluation model to calculate the electromagnetic interference index and the temperature interference index respectively; Step 502, combining the calculated electromagnetic interference index and temperature interference index to obtain an electrical performance evaluation coefficient, and determining the abnormal level of the current electrical performance interference situation according to a preset abnormal threshold, and generating an abnormal data analysis list; Step 503, perform in-depth analysis based on the abnormal data analysis list, find the cause of the abnormal electrical performance, determine the type of abnormal electrical performance, and determine compensation measures based on the abnormal level and the abnormal data analysis list; Step 504, converting the determined compensation measures into a specific compensation plan, executing the compensation plan, and monitoring its effect.

10. A pump group electromechanical equipment electrical data acquisition system, used to implement the pump group electromechanical equipment electrical data acquisition method according to any one of claims 1 to 9, comprising a data management center, characterized in that: The data management center is communicatively connected with a data acquisition module, a data processing module, a communication module, a data monitoring module, an early warning module and a safety protection module, wherein the modules are electrically connected with each other; The data acquisition module is used to collect various electrical data in the pump station, including the water level of the water tank, the inlet and outlet water pressure, flow, current, voltage, power, and the start and stop status of the pump group; The data processing module is used to analyze, calculate and judge the collected electrical data and extract key features; The communication module is used to transmit the processed electrical data to the data management center to achieve remote transmission and sharing of the electrical data; The data monitoring module is used to monitor the electrical data of the electromechanical equipment of the pump group, detect abnormalities and faults, and provide real-time data feedback; The early warning module is used to automatically send alarm information to management personnel when the data monitoring module detects abnormal data and equipment failure; The safety protection module is used to execute protection measures when abnormal data and equipment failure are detected to prevent equipment damage and accidents.

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