Monitoring system and method based on power metering smart laboratory

Abstract

The present invention relates to the field of power management technology, and specifically refers to a monitoring system and method based on an electric power metering smart laboratory, wherein the system includes: a selection module, which is used to use the operating parameters of the transformer production equipment corresponding to each transformer to calculate the performance value of each transformer in the batch-produced transformers, and select multiple sample transformers of detection targets according to the performance value of each transformer; a detection module, which is used to obtain the secondary side current or voltage value of the sample transformer of each detection target; a judgment module, which is used to judge whether the secondary side current or voltage value of the sample transformer of each detection target meets the secondary side current or voltage threshold; an evaluation module, which is used to evaluate the quality of the batch-produced transformers of the batch to which the sample transformer of the detection target belongs; the system can realize efficient quality control in the process of transformer batch production, and ensure the consistency and reliability of product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of power management, and in particular to a monitoring system and method based on a power metering smart laboratory. Background Art

[0002] In the power system sector, with the rapid development of new grid elements such as smart grids, distributed power sources, renewable energy, and microgrids, power metering and testing are gradually moving towards large-scale, high-speed, and refined operations. As a key foundational support and quality assurance link for power systems, power metering and testing plays a role in quantitative assessment and quality monitoring within the power system.

[0003] As the core platform for power metering management, the Power Metering Smart Laboratory carries out multiple services, including inspection, testing, verification, and calibration, providing measurement standard value transfer and metrology quality supervision services to businesses and society. By conducting quality inspections and performance evaluations on measuring instruments and their testing devices, we ensure their reliability and accuracy, and promptly identify potential problems and failure trends. This is crucial for the safe and reliable operation of the entire power system.

[0004] In the prior art, Chinese patent publication number CN115754880A discloses an intelligent current transformer quality detection system, which is characterized by comprising: a data acquisition module for recording the waveform of a standard current transformer and generating a standard output waveform; a test module for testing the current transformer to be tested and generating a test output waveform; a comparison module for comparing the standard output waveform with the test output waveform to generate a comparison result; a calibration module for calibrating the current transformer to be tested based on the comparison result and generating a calibration result; and an early warning module for issuing an early warning to the current transformer to be tested based on the calibration result. Although this system can detect the quality of current transformers by comparing current transformer data, in the process of mass production of transformers, due to the large number of transformers produced in batches, it is difficult to meet the high throughput requirements of transformer mass production by testing each transformer one by one, resulting in a significant reduction in the production efficiency of transformer mass production and affecting the quality consistency of transformer mass production products.

[0005] In order to eliminate the reduction in production efficiency of transformer batch production and the inability to ensure product quality consistency of transformer batch production due to the inability of detection methods to meet the high-throughput requirements of mass production, technical personnel in this field have been seeking effective monitoring methods for power metering smart laboratories, so as to achieve efficient quality control in the transformer batch production process and ensure the consistency and reliability of product quality. Summary of the Invention

[0006] The purpose of the present invention is to provide a monitoring system and method based on an electric power metering smart laboratory, which solves the technical problems raised in the above background technology.

[0007] The monitoring system based on the power metering smart laboratory designed by the present invention to achieve one of the above-mentioned purposes is special in that it includes:

[0008] The selection module is used to calculate the performance value of each transformer in the batch-produced transformers using the operating parameters of the transformer production equipment corresponding to each transformer. The performance value X of each transformer is calculated using the following formula:

[0009]

[0010] Among them, s represents the production frequency of the transformer production equipment, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, and p v Indicates the operating power of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment, p ％ax Indicates the maximum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer, p ％(n Indicates the minimum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; the performance value X of each transformer is inversely proportional to the quality of the transformer production environment, and multiple sample transformers for detection are selected based on the performance value of each transformer. Transformers based on batch production are arranged in descending order of performance value X, and the preceding transformers that are no greater than one-tenth of the number of transformers produced in the batch are selected as sample transformers for detection;

[0011] A detection module is used to install the sample transformer of each detection target into a test circuit that has a primary side current or voltage conversion requirement to a secondary side current or voltage, and obtain the secondary side current or voltage value of the sample transformer of each detection target;

[0012] a determination module, configured to determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets a secondary-side current or voltage threshold value, and when the secondary-side current or voltage threshold value is met, determining that the sample transformer corresponding to the detection target is a sample transformer of the detection target of qualified quality;

[0013] The evaluation module is used to evaluate the quality of the batch of mass-produced transformers in which the sample transformers of the test target belong according to the ratio of the number of the sample transformers of the test target with qualified quality to the number of the mass-produced transformers.

[0014] Furthermore, the selection module includes:

[0015] Identification unit, used to identify the production number of the transformer and determine the production sequence of the transformers produced in batches;

[0016] A collection unit is used to collect operating parameters of transformer production equipment during the production process of batch-produced transformers;

[0017] The operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment;

[0018] The analysis unit is used to determine the operating parameters of the transformer production equipment corresponding to each transformer in the batch production according to the number of transformers produced in the batch production, as described in the following formula:

[0019]

[0020] Wherein, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, t represents the time range of the operating parameters of the transformer production equipment corresponding to the transformers produced in batches, and m represents the number of transformers produced in batches; the operating parameters of the transformer production equipment corresponding to each transformer are the operating parameters of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment corresponding to each transformer;

[0021] The analysis unit is further used to calculate the performance value X of each transformer in the batch-produced transformers using the operating parameters of the transformer production equipment corresponding to each transformer, and select multiple sample transformers of the detection target according to the performance value of each transformer.

[0022] Furthermore, the detection module installs the sample transformer of each detection target into a test circuit with a requirement to convert the primary side current or voltage into the secondary side current or voltage, and by controlling the number of tests and the conversion ratio of the target current or voltage, performs a test on the sample transformer of each detection target to convert the large current on the primary side into the small current on the secondary side or the high voltage on the primary side into the low voltage on the secondary side, thereby obtaining the secondary side current or voltage value of the sample transformer of each detection target.

[0023] Furthermore, the determination module determines whether the secondary side current or voltage value of the sample transformer of each detection target meets the secondary side current or voltage threshold, as described in the following formula:

[0024]

[0025] Among them, η + Indicates that the sample transformer of the detection target is the judgment value of the current transformer, η . Indicates that the sample transformer of the detection target is the judgment value of the voltage transformer, n represents the number of tests of the sample transformer of the detection target, (I,)( Indicates the primary current value of the sample transformer of the detection target for the i-th time, I ( Represents the secondary current value of the i-th sample transformer of the detection target, (V,) ( Indicates the primary side voltage value of the sample transformer of the detection target, V ( Represents the secondary voltage value of the sample transformer i of the detection target, ω $ The sample transformer representing the detection target is the calculation weight coefficient of the current transformer, ω / The calculation weight coefficient indicating that the sample transformer of the detection target is a voltage transformer; when the sample transformer of the detection target is a current transformer, the judgment value η for the sample transformer of the detection target is a current transformer is calculated based on formula (1). + If the judgment value meets the threshold value of the secondary side current, the sample transformer of the detection target is a current transformer of qualified quality; when the sample transformer of the detection target is a voltage transformer, the judgment value η of the sample transformer of the detection target is a voltage transformer based on formula (2) . A judgment is made, and if the judgment value meets the threshold value of the secondary side voltage, the sample transformer of the detection target is a voltage transformer of qualified quality.

[0026] Furthermore, the sample transformer of the detection target is a calculation weight coefficient ω of the current transformer $ The sample transformer of the detection target is the calculation weight coefficient ω of the voltage transformer / , as described in the following formula:

[0027]

[0028] Among them, c ( It represents the operating temperature of the sample transformer of the detection target when the current or voltage on the primary side is converted to the current or voltage on the secondary side for the i-th time, and γ represents the adjustment factor.

[0029] Furthermore, the evaluation module evaluates the ratio of the number of sample transformers of the detection target with qualified quality to the number of transformers produced in batches. When the ratio is greater than 99% or there is only one transformer with unqualified quality, the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is qualified; when the judgment result is that the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is unqualified, the adjacent transformers in the production sequence of the batch of transformers produced in the batch are selected as the sample transformers of the new detection target, and the determination module is used to determine whether the secondary side current or voltage value of the sample transformer of the new detection target meets the secondary side current or voltage threshold; if it meets the threshold, the secondary side current or voltage value of the sample transformer of the new detection target is determined to be qualified. If the secondary side current or voltage threshold is met, the sample transformer of the new detection target is a current transformer of qualified quality, and the quality of the batch-produced transformers in that batch is determined based on the comprehensive judgment result; if it does not meet the secondary side current or voltage threshold, the adjacent transformers in the production sequence of the batch-produced transformers in that batch are selected as the sample transformers of the new detection target, and the judgment module is used to judge again whether the secondary side current or voltage value converted by the sample transformer of the new detection target meets the conversion current or voltage threshold, until the judgment module judges that the secondary side current or voltage value of the sample transformer of the new detection target meets the threshold, and the quality of the batch-produced transformers in that batch is determined based on the comprehensive judgment result.

[0030] As a preferred solution, the identification unit, acquisition unit and analysis unit in the selection module transmit data via a wireless network; the information of the sample transformer selected as the detection target by the selection module is transmitted to the detection module via a wireless network; the secondary side current or voltage value of the sample transformer of the detection target obtained by the detection module is transmitted to the determination module via a wireless network; and the determination information of the determination module is transmitted to the evaluation module via a wireless network.

[0031] The monitoring method based on the power metering smart laboratory designed by the present invention to achieve the second objective above is special in that it includes the following steps:

[0032] The performance value of each transformer in the batch-produced transformers is calculated using the operating parameters of the transformer production equipment corresponding to each transformer. The performance value X of each transformer is calculated using the following formula:

[0033]

[0034] Among them, s represents the production frequency of the transformer production equipment, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, and p v Indicates the operating power of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment, p ％axIndicates the maximum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer, p ％(n Indicates the minimum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; the performance value X of each transformer is inversely proportional to the quality of the transformer production environment, and multiple sample transformers for detection are selected based on the performance value of each transformer. Transformers based on batch production are arranged in descending order of performance value X, and the preceding transformers that are no greater than one-tenth of the number of transformers produced in the batch are selected as sample transformers for detection;

[0035] Installing the sample transformer of each detection target into a test circuit that has a requirement to convert the primary side current or voltage into the secondary side current or voltage, and obtaining the secondary side current or voltage value of the sample transformer of each detection target;

[0036] Determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets the secondary-side current or voltage threshold value. When the secondary-side current or voltage threshold value is met, determine that the sample transformer corresponding to the detection target is a sample transformer of the detection target of qualified quality.

[0037] According to the ratio of the number of qualified sample transformers of the test target to the number of mass-produced transformers, the quality of the mass-produced transformers in the batch to which the sample transformers of the test target belong is evaluated.

[0038] Furthermore, the method of calculating the performance value of each transformer in the batch-produced transformers by using the operating parameters of the transformer production equipment corresponding to each transformer, and selecting a plurality of sample transformers of the detection target according to the performance value of each transformer, includes:

[0039] Identify the production number of the transformer and determine the production sequence of the transformers produced in batches;

[0040] Collect operating parameters of transformer production equipment during the production process of mass-produced transformers;

[0041] The operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment;

[0042] The operating parameters of the transformer production equipment corresponding to each transformer in the batch production are determined based on the number of transformers produced in the batch production. The performance value X of each transformer in the batch production is calculated using the operating parameters of the transformer production equipment corresponding to each transformer. Based on the performance value of each transformer, multiple sample transformers for detection targets are selected.

[0043] To achieve the third objective, the present invention provides a computing device comprising a processor, a memory, a communication interface, and a communication bus, wherein the processor, the memory, and the communication interface communicate with each other via the communication bus.

[0044] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute operations corresponding to the above-mentioned monitoring method based on the power metering smart laboratory.

[0045] According to the technical solution provided by the present invention, during the transformer production process, the operating parameters of the transformer production equipment corresponding to each transformer are used to calculate the performance value of each transformer in the batch-produced transformers, and a plurality of sample transformers of the detection targets are selected according to the performance value of each transformer. Tests are performed to convert the large current on the primary side into the small current on the secondary side or the high voltage on the primary side into the low voltage on the secondary side to obtain the secondary-side current or voltage value of the sample transformer of each detection target. According to the ratio of the number of sample transformers of the detection targets with qualified quality to the number of transformers produced in batches, the quality of the batch-produced transformers of the sample transformers of the detection targets is evaluated. Representative sampling detection of the transformers is adopted to achieve quality assurance while improving detection efficiency. The quality of the batch-produced transformers in the batch is evaluated through the quality judgment results of the sample transformers, thereby ensuring the consistency and reliability of the overall quality of the product.

[0046] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A module diagram of a monitoring system based on a power metering smart laboratory.

[0048] Figure 2 The figure is a flow chart of a monitoring method based on an electric power metering smart laboratory according to the present invention.

[0049] Figure 3 A schematic structural diagram of a computing device according to the present invention. DETAILED DESCRIPTION

[0050] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0051] Figure 1 FIG. 1 shows a module diagram of a monitoring system based on a power metering smart laboratory according to an embodiment of the present invention. Figure 1 As shown, the system includes:

[0052] The selection module is used to calculate the performance value of each transformer in the batch-produced transformers using the operating parameters of the transformer production equipment corresponding to each transformer. The performance value X of each transformer is calculated using the following formula:

[0053]

[0054] Among them, s represents the production frequency of the transformer production equipment, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, and p v Indicates the operating power of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment, p ％ax Indicates the maximum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer, p ％(n Indicates the minimum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; the performance value X of each transformer is inversely proportional to the quality of the transformer production environment, and multiple sample transformers for detection are selected based on the performance value of each transformer. Transformers based on batch production are arranged in descending order of performance value X, and the preceding transformers that are no greater than one-tenth of the number of transformers produced in the batch are selected as sample transformers for detection;

[0055] A detection module is used to install the sample transformer of each detection target into a test circuit that has a primary side current or voltage conversion requirement to a secondary side current or voltage, and obtain the secondary side current or voltage value of the sample transformer of each detection target;

[0056] a determination module, configured to determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets a secondary-side current or voltage threshold value, and when the secondary-side current or voltage threshold value is met, determining that the sample transformer corresponding to the detection target is a sample transformer of the detection target of qualified quality;

[0057] The evaluation module is used to evaluate the quality of the batch of mass-produced transformers in which the sample transformers of the test target belong according to the ratio of the number of the sample transformers of the test target with qualified quality to the number of the mass-produced transformers.

[0058] Specifically, select modules including:

[0059] Identification unit, used to identify the production number of the transformer and determine the production sequence of the transformers produced in batches;

[0060] A collection unit is used to collect operating parameters of transformer production equipment during the production process of batch-produced transformers;

[0061] The operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment;

[0062] The analysis unit is used to determine the operating parameters of the transformer production equipment corresponding to each transformer in the batch production according to the number of transformers produced in the batch production, as described in the following formula:

[0063]

[0064] Wherein, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, t represents the time range of the operating parameters of the transformer production equipment corresponding to the transformers produced in batches, and m represents the number of transformers produced in batches; the operating parameters of the transformer production equipment corresponding to each transformer are the operating parameters of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment corresponding to each transformer;

[0065] The analysis unit is further used to calculate the performance value X of each transformer in the batch-produced transformers using the operating parameters of the transformer production equipment corresponding to each transformer, and select multiple sample transformers of the detection target according to the performance value of each transformer.

[0066] Specifically, the detection module installs the sample transformer of each detection target into a test circuit with a requirement for converting the primary-side current or voltage into the secondary-side current or voltage; when the sample transformer of the detection target is a current transformer, a test is performed on converting the large current on the primary side into the small current on the secondary side, and the target current conversion is controlled to perform multiple tests at different input current levels, and the large current data of the input primary side and the small current data of the output secondary side are collected; when the sample transformer of the detection target is a voltage transformer, a test is performed on converting the high voltage on the primary side into the low voltage on the secondary side, and the target voltage conversion ratio is controlled to perform multiple tests at different input voltage levels, and the high voltage data of the input primary side and the low voltage data of the output secondary side are collected; and the secondary-side current or voltage value of the sample transformer of each detection target is obtained.

[0067] Specifically, the determination module determines whether the secondary side current or voltage value of the sample transformer of each detection target meets the secondary side current or voltage threshold, as described in the following formula:

[0068]

[0069] Among them, η + Indicates that the sample transformer of the detection target is the judgment value of the current transformer, η .Indicates that the sample transformer of the detection target is the judgment value of the voltage transformer, n represents the number of tests of the sample transformer of the detection target, (I,) ( Indicates the primary current value of the sample transformer of the detection target for the i-th time, I ( Represents the secondary current value of the i-th sample transformer of the detection target, (V,) ( Indicates the primary side voltage value of the sample transformer of the detection target for the i-th time, V ( Indicates the secondary voltage value of the sample transformer i of the detection target, ω $ The sample transformer representing the detection target is the calculation weight coefficient of the current transformer, ω / The calculation weight coefficient indicating that the sample transformer of the detection target is a voltage transformer; when the sample transformer of the detection target is a current transformer, the judgment value η for the sample transformer of the detection target is a current transformer is calculated based on formula (1). + If the judgment value meets the threshold value of the secondary side current, the sample transformer of the detection target is a current transformer of qualified quality; when the sample transformer of the detection target is a voltage transformer, the judgment value η of the sample transformer of the detection target is a voltage transformer based on formula (2) . If the judgment value meets the threshold value of the secondary side voltage, the sample transformer of the detection target is a voltage transformer of qualified quality, thereby making judgments on the current transformer and the voltage transformer separately, ensuring the accuracy and comprehensiveness of the judgment results.

[0070] Specifically, the sample transformer of the detection target is the calculation weight coefficient ω of the current transformer $ The sample transformer of the detection target is the calculation weight coefficient ω of the voltage transformer / , as described in the following formula:

[0071]

[0072] Among them, c ( represents the operating temperature when the i-th primary-side current or voltage of the sample transformer of the detection target is converted to the secondary-side current or voltage, and γ represents the adjustment factor. When the sample transformer of the detection target is a current transformer, the value of the adjustment factor γ is 0.505; when the sample transformer of the detection target is a voltage transformer, the value of the adjustment factor γ is 0.495, thereby achieving standardized determination results of current transformers and voltage transformers.

[0073] Specifically, the evaluation module evaluates the ratio of the number of sample transformers of the detection target with qualified quality to the number of transformers produced in batches. When the ratio is greater than 99% or there is only one transformer with unqualified quality, the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is qualified; when the judgment result is that the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is unqualified, the adjacent transformers in the production sequence of the batch of transformers produced in the batch are selected as the sample transformers of the new detection target, and the judgment module judges whether the secondary side current or voltage value of the sample transformer of the new detection target meets the secondary side current or voltage threshold; if it meets the secondary side current or voltage threshold, the new detection target is The target sample transformer is a current transformer of qualified quality. The quality of the batch-produced transformers in that batch is determined based on the comprehensive judgment result. If it does not meet the threshold of the secondary side current or voltage, the adjacent transformers in the production sequence of the batch-produced transformers in that batch are selected as the sample transformers of the new detection target. The judgment module is used to judge again whether the secondary side current or voltage value converted by the sample transformer of the new detection target meets the threshold of the conversion current or voltage, until the judgment module judges that the secondary side current or voltage value of the sample transformer of the new detection target meets the threshold. The quality of the batch-produced transformers in that batch is determined based on the comprehensive judgment result, thereby realizing effective management of the batch-produced transformers and ensuring the consistency and reliability of product quality.

[0074] Optionally, the identification unit, the acquisition unit and the analysis unit in the selection module transmit data via a wireless network; the information of the sample transformer selected as the detection target by the selection module is transmitted to the detection module via a wireless network; the secondary side current or voltage value of the sample transformer of the detection target obtained by the detection module is transmitted to the judgment module via a wireless network; the judgment information of the judgment module is transmitted to the evaluation module via a wireless network.

[0075] Figure 2 FIG. 1 shows a flow chart of a monitoring method based on a power metering smart laboratory according to an embodiment of the present invention. Figure 2 As shown, the method includes the following steps:

[0076] Step 1: Calculate the performance value of each transformer in the batch-produced transformers using the operating parameters of the transformer production equipment corresponding to each transformer. The performance value X of each transformer is calculated using the following formula:

[0077]

[0078] Among them, s represents the production frequency of the transformer production equipment, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, and p vIndicates the operating power of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment, p ％ax Indicates the maximum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer, p ％(n Indicates the minimum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; the performance value X of each transformer is inversely proportional to the quality of the transformer production environment, and multiple sample transformers for detection are selected based on the performance value of each transformer. Transformers based on batch production are arranged in descending order of performance value X, and the preceding transformers that are no greater than one-tenth of the number of transformers produced in the batch are selected as sample transformers for detection;

[0079] Step 2: Install the sample transformer of each detection target into a test circuit that requires converting the primary side current or voltage into the secondary side current or voltage, and obtain the secondary side current or voltage value of the sample transformer of each detection target;

[0080] Step 3: Determine whether the secondary side current or voltage value of the sample transformer of each detection target meets the secondary side current or voltage threshold. When the secondary side current or voltage threshold is met, the sample transformer corresponding to the detection target is determined to be a sample transformer of the detection target of qualified quality.

[0081] Step 4: Based on the ratio of the number of qualified sample transformers of the test target to the number of transformers produced in batches, the quality of the batch of transformers produced in the batch of the sample transformers of the test target is evaluated.

[0082] Specifically, the performance value of each transformer in the batch-produced transformers is calculated using the operating parameters of the transformer production equipment corresponding to each transformer, and a plurality of sample transformers of the detection target are selected according to the performance value of each transformer, including:

[0083] Identify the production number of the transformer and determine the production sequence of the transformers in batch production

[0084] Collect the operating parameters of the transformer production equipment during the production process of batch production transformers

[0085] Among them, the operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment

[0086] The operating parameters of the transformer production equipment corresponding to each transformer in the batch production are determined based on the number of transformers produced in the batch production. The performance value X of each transformer in the batch production is calculated using the operating parameters of the transformer production equipment corresponding to each transformer. Based on the performance value of each transformer, multiple sample transformers for detection targets are selected.

[0087] Figure 3 A schematic structural diagram of a computing device according to an embodiment of the present invention is shown. The specific embodiment of the present invention does not limit the specific implementation of the computing device.

[0088] like Figure 3 As shown, the computing device may include: a processor, a communication interface, a memory, and a communication bus.

[0089] Wherein: the processor, the communication interface, and the memory communicate with each other via a communication bus.

[0090] Communication interface, used to communicate with other devices such as clients or other servers.

[0091] The processor is used to execute the program, and specifically can execute the relevant steps in the above-mentioned monitoring method embodiment based on the power metering smart laboratory.

[0092] Specifically, the program may include program codes including computer operation instructions.

[0093] The processor may be a central processing unit (CPU), a specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention. The one or more processors included in a computing device may be processors of the same type, such as one or more CPUs, or processors of different types, such as one or more CPUs and one or more ASICs.

[0094] The memory is used to store programs. The memory may include high-speed RAM memory and may also include non-volatile memory, such as at least one disk storage.

[0095] The program can be specifically configured to cause a processor to execute the monitoring method for a power metering smart laboratory in any of the aforementioned method embodiments. The specific implementation of each step in the program can be found in the corresponding descriptions of the corresponding steps and units in the aforementioned monitoring method for a power metering smart laboratory, and will not be repeated here. Those skilled in the art will clearly understand that, for ease and brevity of description, the specific operating processes of the devices and modules described above can refer to the corresponding process descriptions in the aforementioned method embodiments, and will not be repeated here.

[0096] The algorithm and display provided herein are not inherently related to any particular computer, virtual system or other device. Various general-purpose systems can also be used together with the teachings based on this. According to the above description, it is obvious that the structure required for constructing this type of system. In addition, the present invention is not directed to any specific programming language. It should be understood that various programming languages ​​can be utilized to realize the content of the present invention described herein, and the above description of specific languages ​​is for the purpose of disclosing the best mode of the present invention.

[0097] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0098] Similarly, it should be understood that in order to streamline the present disclosure and aid understanding of one or more of the various inventive aspects, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the claims, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Accordingly, the claims that follow the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the invention.

Claims

1. A monitoring system based on an electric power metering smart laboratory, characterized in that: include: The selection module is used to calculate the performance value of each transformer in the batch-produced transformers using the operating parameters of the transformer production equipment corresponding to each transformer. The performance value X of each transformer is calculated using the following formula: Among them, s represents the production frequency of the transformer production equipment, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, and p v Indicates the operating power of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment, p ％ax Indicates the maximum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer, p ％(n Indicates the minimum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; the performance value X of each transformer is inversely proportional to the quality of the transformer production environment, and multiple sample transformers for detection are selected based on the performance value of each transformer. Transformers based on batch production are arranged in descending order of performance value X, and the preceding transformers that are no greater than one-tenth of the number of transformers produced in the batch are selected as sample transformers for detection; A detection module is used to install the sample transformer of each detection target into a test circuit that has a primary side current or voltage conversion requirement to a secondary side current or voltage, and obtain the secondary side current or voltage value of the sample transformer of each detection target; a determination module, configured to determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets a secondary-side current or voltage threshold value, and when the secondary-side current or voltage threshold value is met, determining that the sample transformer corresponding to the detection target is a sample transformer of the detection target of qualified quality; The evaluation module is used to evaluate the quality of the batch of mass-produced transformers in which the sample transformers of the test target belong according to the ratio of the number of the sample transformers of the test target with qualified quality to the number of the mass-produced transformers.

2. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The selection module includes: Identification unit, used to identify the production number of the transformer and determine the production sequence of the transformers produced in batches; A collection unit is used to collect operating parameters of transformer production equipment during the production process of batch-produced transformers; The operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment; The analysis unit is used to determine the operating parameters of the transformer production equipment corresponding to each transformer in the batch production according to the number of transformers produced in the batch production, as described in the following formula: Wherein, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, t represents the time range of the operating parameters of the transformer production equipment corresponding to the transformers produced in batches, and m represents the number of transformers produced in batches; the operating parameters of the transformer production equipment corresponding to each transformer are the operating parameters of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; The analysis unit is further used to calculate the performance value X of each transformer in the batch-produced transformers using the operating parameters of the transformer production equipment corresponding to each transformer, and select multiple sample transformers of the detection target according to the performance value of each transformer.

3. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The detection module installs the sample transformer of each detection target into a test circuit with a requirement to convert the primary side current or voltage into the secondary side current or voltage. By controlling the number of tests and the conversion ratio of the target current or voltage, the sample transformer of each detection target is tested to convert the large current on the primary side into the small current on the secondary side or the high voltage on the primary side into the low voltage on the secondary side, and the secondary side current or voltage value of the sample transformer of each detection target is obtained.

4. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The determination module determines whether the secondary side current or voltage value of the sample transformer of each detection target meets the secondary side current or voltage threshold, as described in the following formula: Among them, η + Indicates that the sample transformer of the detection target is the judgment value of the current transformer, η . Indicates that the sample transformer of the detection target is the judgment value of the voltage transformer, n represents the number of tests of the sample transformer of the detection target, (I,) ( Indicates the primary current value of the sample transformer of the detection target for the i-th time, I ( Represents the secondary current value of the i-th sample transformer of the detection target, (V,) ( Indicates the primary side voltage value of the sample transformer of the detection target for the i-th time, V ( Indicates the secondary voltage value of the sample transformer i of the detection target, ω $ The sample transformer representing the detection target is the calculation weight coefficient of the current transformer, ω / The calculation weight coefficient indicating that the sample transformer of the detection target is a voltage transformer; when the sample transformer of the detection target is a current transformer, the judgment value η for the sample transformer of the detection target is a current transformer is calculated based on formula (1). + If the judgment value meets the threshold value of the secondary side current, the sample transformer of the detection target is a current transformer of qualified quality; when the sample transformer of the detection target is a voltage transformer, the judgment value η of the sample transformer of the detection target is a voltage transformer based on formula (2) . A judgment is made, and if the judgment value meets the threshold value of the secondary side voltage, the sample transformer of the detection target is a voltage transformer of qualified quality.

5. The monitoring system based on the power metering smart laboratory according to claim 4 is characterized in that: The sample transformer of the detection target is the calculation weight coefficient ω of the current transformer $ The sample transformer of the detection target is the calculation weight coefficient ω of the voltage transformer / , as described in the following formula: Among them, c ( It represents the operating temperature of the sample transformer of the detection target when the current or voltage on the primary side is converted to the current or voltage on the secondary side for the i-th time, and γ represents the adjustment factor.

6. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The evaluation module evaluates the ratio of the number of sample transformers of the detection target with qualified quality to the number of transformers produced in batches. When the ratio is greater than 99% or there is only one transformer with unqualified quality, the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is qualified; when the judgment result is that the quality of the batch of transformers produced in the batch where the sample transformer of the detection target is located is unqualified, the adjacent transformers in the production sequence of the batch of transformers produced in the batch are selected as the sample transformers of the new detection target, and the determination module is used to determine whether the secondary side current or voltage value of the sample transformer of the new detection target meets the secondary side current or voltage threshold; if it meets the secondary side current or voltage threshold, the secondary side current or voltage threshold is determined. If the threshold of the secondary side current or voltage is met, the sample transformer of the new detection target is a current transformer of qualified quality, and the quality of the batch-produced transformers in that batch is determined based on the comprehensive judgment result; if it does not meet the threshold of the secondary side current or voltage, the adjacent transformers in the production sequence of the batch-produced transformers in that batch are selected as the sample transformers of the new detection target, and the judgment module is used to judge again whether the secondary side current or voltage value converted by the sample transformer of the new detection target meets the threshold of the conversion current or voltage, until the judgment module judges that the secondary side current or voltage value of the sample transformer of the new detection target meets the threshold, and the quality of the batch-produced transformers in that batch is determined based on the comprehensive judgment result.

7. The monitoring system based on the power metering smart laboratory according to claim 1 is characterized in that: The identification unit, acquisition unit and analysis unit in the selection module transmit data via a wireless network; the information of the sample transformer selected by the selection module as the detection target is transmitted to the detection module via a wireless network; the secondary side current or voltage value of the sample transformer of the detection target obtained by the detection module is transmitted to the determination module via a wireless network; and the determination information of the determination module is transmitted to the evaluation module via a wireless network.

8. A monitoring method based on an electric power metering smart laboratory, characterized in that: The steps include: The performance value of each transformer in the batch-produced transformers is calculated using the operating parameters of the transformer production equipment corresponding to each transformer. The performance value X of each transformer is calculated using the following formula: Among them, s represents the production frequency of the transformer production equipment, u represents the time range of the operating parameters of the transformer production equipment corresponding to each transformer, and p v Indicates the operating power of the transformer production equipment corresponding to each transformer within the time range of the operating parameters of the transformer production equipment, p ％ax Indicates the maximum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer, p ％(n Indicates the minimum operating power within the time range of the operating parameters of the transformer production equipment corresponding to each transformer; the performance value X of each transformer is inversely proportional to the quality of the transformer production environment, and multiple sample transformers for detection are selected based on the performance value of each transformer. Transformers based on batch production are arranged in descending order of performance value X, and the preceding transformers that are no greater than one-tenth of the number of transformers produced in the batch are selected as sample transformers for detection; Installing the sample transformer of each detection target into a test circuit that has a requirement to convert the primary side current or voltage into the secondary side current or voltage, and obtaining the secondary side current or voltage value of the sample transformer of each detection target; Determine whether the secondary-side current or voltage value of the sample transformer of each detection target meets the secondary-side current or voltage threshold value. When the secondary-side current or voltage threshold value is met, determine that the sample transformer corresponding to the detection target is a sample transformer of the detection target of qualified quality. According to the ratio of the number of qualified sample transformers of the test target to the number of mass-produced transformers, the quality of the mass-produced transformers in the batch to which the sample transformers of the test target belong is evaluated.

9. The monitoring method based on the power metering smart laboratory according to claim 8, characterized in that: The method of calculating the performance value of each transformer in the batch-produced transformers by utilizing the operating parameters of the transformer production equipment corresponding to each transformer, and selecting a plurality of sample transformers of the detection target according to the performance value of each transformer, includes: Identify the production number of the transformer and determine the production sequence of the transformers produced in batches; Collect operating parameters of transformer production equipment during the production process of mass-produced transformers; The operating parameters of the transformer production equipment include: the operating power of the transformer production equipment and the production frequency of the transformer production equipment; The operating parameters of the transformer production equipment corresponding to each transformer in the batch production are determined based on the number of transformers produced in the batch production. The performance value X of each transformer in the batch production is calculated using the operating parameters of the transformer production equipment corresponding to each transformer. Based on the performance value of each transformer, multiple sample transformers for detection targets are selected.

10. A computing device comprising a processor, a memory, a communication interface, and a communication bus, wherein: The processor, the memory and the communication interface communicate with each other via the communication bus; The memory is used to store at least one executable instruction, and the executable instruction enables the processor to perform operations corresponding to the monitoring method based on the power metering smart laboratory as described in claim 8 or 9.

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