Load variation detection method and storage medium

Abstract

The embodiment of the present application discloses a load variation detection method. The method comprises: for each transformer in at least two transformers within a preset distance range, determining a plurality of topological loads connected to the transformer according to a transformer load topological relationship record; determining a first power consumption of a first load capable of collecting power consumption in the plurality of topological loads, a power consumption collection rate of the plurality of topological loads, and an output power of the transformer, wherein the power consumption collection rate is a percentage of the number of the first load to the number of the topological loads; estimating a second power consumption of a second load in the plurality of topological loads which does not collect power consumption based on the power consumption collection rate; obtaining a line loss rate and a loss power of the transformer based on the first power consumption, the second power consumption, and the output power; and detecting a load variation between the at least two transformers based on the obtained line loss rate and loss power and the corresponding second power consumption. The technical scheme of the embodiment of the present application can improve the detection efficiency of the load variation.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the field of power transmission, in particular to a load change detection method and a storage medium. BACKGROUND

[0002] The topological relationship between the transformer and the load is crucial for the accurate calculation of the line loss rate of the transformer.

[0003] It should be noted that the topological relationship has been changed through "one entity and three systems" (i.e. connecting the field, the device center electronic platform, the marketing management system and the metering system) all the time, and the staff needs to fill in the load change work sheet in the field, and then initiate the change process in the device center electronic platform according to the load change work sheet, and after the process is archived, it is sent to the marketing system management and the metering system through the system interface, so as to complete the load change between the transformers.

[0004] According to the above description, in the load change process, the detection personnel needs to check the load change on site, and the detection efficiency is low, which needs to be solved urgently. SUMMARY

[0005] The embodiment of the present application provides a load change detection method and a storage medium, so as to improve the detection efficiency of the load change.

[0006] According to an aspect of the present application, a load change detection method can include:

[0007] For each transformer in at least two transformers within a preset distance range, a plurality of topological loads connected with the transformer are determined according to the transformer load topological relationship record;

[0008] The first power consumption of a first load capable of collecting power consumption in the plurality of topological loads, the power consumption collection rate of the plurality of topological loads, and the output power of the transformer are determined, wherein the power consumption collection rate is the percentage of the number of the first load to the number of the topological load;

[0009] Based on the power consumption collection rate, the second power consumption of a second load in the plurality of topological loads which does not collect the power consumption is estimated, and based on the first power consumption, the second power consumption and the output power, the line loss rate and the loss power of the transformer are obtained;

[0010] Based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption, the load change situation between the at least two transformers is detected.

[0011] According to another aspect of the present application, a computer readable storage medium having computer instructions stored thereon is provided, the computer instructions are used to make the processor execute the load change detection method provided by any embodiment of the present application.

[0012] The technical solution in the embodiment of the present application is that, for each of at least two transformers in a preset distance range, a plurality of topological loads connected with the transformer are determined according to a transformer load topological relationship record; a first power consumption of a first load capable of collecting power consumption in the plurality of topological loads and a power consumption collection rate of the plurality of topological loads, and an output power of the transformer are determined, wherein the power consumption collection rate is a percentage of the number of the first load to the number of the topological loads; based on the power consumption collection rate, a second power consumption of a second load in the plurality of topological loads which does not collect power consumption is estimated, and based on the first power consumption, the second power consumption and the output power, a line loss rate and a loss power of the transformer are obtained. By estimating the second power consumption, a more accurate line loss rate and loss power can be obtained. Based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption, a load change between the at least two transformers is detected to realize detection of the load change. The above technical solution estimates the second power consumption which is not collected, obtains the line loss rate and the loss power of the transformer, and then analyzes the load change of the transformer based on the obtained data, without manual on-site verification, thereby improving the detection efficiency of the load change.

[0013] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a flowchart of a load change detection method according to an embodiment of the present application;

[0016] Figure 2 is a flowchart of another load change detection method according to an embodiment of the present application;

[0017] Figure 3 is a flowchart of a load change detection method in a specific example of another load change detection method according to an embodiment of the present application;

[0018] Figure 4 is a structural block diagram of a load change detection device according to an embodiment of the present application;

[0019] Figure 5 is a structural schematic diagram of an electronic device implementing the load variation detection method of the embodiments of the present application. DETAILED DESCRIPTION

[0020] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0021] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The case of "target", "original" and the like is similar, and will not be described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0022] Figure 1 is a flowchart of a load variation detection method provided in the embodiments of the present application. The present embodiment can be applicable to the case of detecting the load variation between transformers. The method can be executed by the load variation detection device provided in the embodiments of the present application, which can be realized by software and / or hardware, and can be integrated on an electronic device, which can be various user terminals or servers.

[0023] Referring to Figure 1 , the method of the embodiments of the present application specifically includes the following steps:

[0024] S110, for each of the at least two transformers within the preset distance range, determining a plurality of topological loads connected to the transformer according to the transformer load topological relationship record.

[0025] Among them, the at least two transformers can be understood as the minimum two transformers within the preset distance range. Optionally, the preset distance range can be a relatively close distance range, for example, within a range of one kilometer. The at least two transformers can be at least two adjacent transformers, so that the load variation between the at least two transformers can be facilitated.

[0026] The transformer load topology relationship record can be understood as a record of the connection relationship between the transformer load and the transformer in a historical time period.

[0027] The topology load can be understood as the load connected to the transformer in the transformer load topology relationship record. According to the transformer load topology relationship record, a plurality of topology loads connected to the transformer before the topology load of the transformer changes can be determined.

[0028] S120, determine the first power consumption of the first load capable of collecting power consumption in the plurality of topology loads, the power consumption collection rate of the plurality of topology loads, and the output power of the transformer, wherein the power consumption collection rate is the percentage of the number of first loads to the number of topology loads.

[0029] The first load can be understood as a topology load connected to the transformer and capable of normal power consumption collection, such as a topology load connected to the transformer and a simultaneous collection device that is not faulty. Optionally, the first power consumption of the first load can be collected through full carrier communication mode through circuit connection.

[0030] The power consumption collection rate can be understood as the proportion of the number of first loads to the number of all topology loads. Optionally, the number of topology loads can be determined according to the transformer load topology relationship record, and the power consumption collection rate can be obtained by dividing the number of first loads by the number of topology loads.

[0031] The output power can be understood as the power output by the transformer to the topology load connected thereto.

[0032] S130, based on the power consumption collection rate, estimate the second power consumption of the second load in the plurality of topology loads that does not collect power consumption, and based on the first power consumption, the second power consumption and the output power, obtain the line loss rate and the loss power of the transformer.

[0033] The second load can be understood as the load in the topology load that collects power consumption. Optionally, the second load can be a topology load that is not connected to the transformer in the actual situation, or a topology load that collects power consumption due to the failure of the collection device.

[0034] The second power consumption can be understood as the estimated power consumption of the second load. Optionally, it can be estimated based on historical power consumption, or it can be estimated through a neural network model.

[0035] The loss power can be understood as the power loss of the transformer in the power transmission process. Optionally, the loss power can be obtained by subtracting the first power consumption and the second power consumption from the output power.

[0036] The line loss rate can be understood as a percentage of the loss power over the output power of the transformer.

[0037] The second power consumption can be estimated based on the power consumption collection rate, and the line loss rate and the loss power can be calculated based on the first power consumption, the second power consumption and the output power.

[0038] S140, based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption, detecting the load variation between at least two transformers.

[0039] Wherein, when the load of the transformer changes, the topology load of the transformer recorded in the transformer load topology relationship record has not been updated at this time, at this time the line loss rate, the loss power and the second power consumption calculated will change, the load variation between at least two transformers can be detected through the corresponding detection rule. Optionally, after detecting the load variation between at least two transformers, it further comprises: updating the transformer load topology relationship record based on the load variation. Update the transformer load topology relationship record in time to avoid line loss distortion and assist power supply enterprises in line loss planning and formulating loss reduction measures.

[0040] The technical scheme in the embodiment of the application is aimed at each transformer in at least two transformers within a preset distance range, determines a plurality of topology loads connected to the transformer according to the transformer load topology relationship record, determines the first power consumption of the first load capable of collecting power consumption in the plurality of topology loads and the power consumption collection rate of the plurality of topology loads, and the output power of the transformer, wherein the power consumption collection rate is the percentage of the number of the first load to the number of the topology load; estimates the second power consumption of the second load in the plurality of topology loads which has not collected power consumption based on the power consumption collection rate, and obtains the line loss rate and the loss power of the transformer based on the first power consumption, the second power consumption and the output power. By estimating the second power consumption, more accurate line loss rate and loss power can be obtained. Based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption, the load variation between at least two transformers is detected to realize the detection of load variation. The above technical scheme estimates the second power consumption which has not been collected, obtains the line loss rate and the loss power of the transformer, and then analyzes the load variation of the transformer based on the obtained data, without manual on-site verification, thereby improving the detection efficiency of load variation.

[0041] An optional technical scheme estimates the second power consumption of the second load in the plurality of topology loads which has not collected power consumption based on the power consumption collection rate, comprising: in the case that the power consumption data collection rate is greater than a preset collection rate threshold, estimating the second power consumption of the second load in the plurality of topology loads which has not collected power consumption based on the power consumption collection rate.

[0042] In a case where the power consumption data collection rate is less than the preset collection rate threshold, for example, in a case where the power consumption data collection rate is 50%, when the second power consumption of the second load accounting for the other 50% is estimated, the error is large and the change of the load cannot be accurately detected. Therefore, in a case where the power consumption data collection rate is greater than the preset collection rate threshold, for example, in a case where the power consumption data collection rate is greater than 90%, the second power consumption of the second load in the plurality of topology loads for which the power consumption is not collected is estimated based on the power consumption collection rate.

[0043] The above technical solution can further process only the data with the power consumption data collection rate greater than the preset collection rate threshold, thereby improving the detection accuracy.

[0044] In another optional technical solution, the second power consumption of the second load in the plurality of topology loads for which the power consumption is not collected is estimated based on the power consumption collection rate, including: obtaining historical power consumption of the plurality of topology loads; based on the historical power consumption, drawing a historical power consumption curve of the plurality of topology loads; based on the power consumption collection rate, determining a power consumption non-collection rate of the plurality of topology loads; based on the power consumption non-collection rate and the historical power consumption curve, estimating the second power consumption of the second load in the plurality of topology loads for which the power consumption is not collected.

[0045] In the above technical solution, the historical power consumption curve of the plurality of topology loads can be drawn based on the historical power consumption of the plurality of topology loads. Optionally, the historical power consumption curve can reflect the power consumption change of the plurality of topology loads at each historical time period. Then, based on the power consumption collection rate, the power consumption non-collection rate of the plurality of topology loads is determined. Finally, based on the power consumption non-collection rate and the historical power consumption curve, the second power consumption of the second load in the plurality of topology loads for which the power consumption is not collected is estimated. Optionally, the historical power consumption of the plurality of topology loads at the time to be estimated can be determined from the historical power consumption curve, and then the historical power consumption is multiplied by the power consumption non-collection rate to estimate the second power consumption of the second load.

[0046] The above technical solution can achieve accurate estimation of the second power consumption by using the historical power consumption.

[0047] In another optional technical solution, the line loss rate and the loss power of the transformer are obtained based on the first power consumption, the second power consumption, and the output power, including: adding the first power consumption and the second power consumption to obtain a fitted power consumption; subtracting the fitted power consumption from the output power to obtain the loss power of the transformer; and dividing the loss power by the output power to obtain the line loss rate of the transformer.

[0048] In the above technical solution, the first power consumption and the second power consumption can be added to obtain the fitted power consumption. Then, the fitted power consumption is subtracted from the output power to obtain the loss power of the transformer. Finally, the loss power is divided by the output power to obtain the line loss rate of the transformer.

[0049] The technical solution can further calculate the loss power and line loss rate according to the estimated second power consumption.

[0050] In another optional technical solution, the load change between at least two transformers is detected based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption, including: in the case that the line loss rate is not the light load line loss rate or exceeds the preset line loss rate change threshold, the load change between at least two transformers is detected based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption.

[0051] The light load line loss rate can be understood as the line loss rate of the transformer at the light load time. The light load time of the transformer refers to the time when the load power of the transformer is less than 30% of the full load power. At this time, the output voltage of the transformer is relatively high, so that the heat generation of the transformer increases, and the line loss rate is relatively high.

[0052] The sudden change line loss rate can be understood as the line loss rate that suddenly changes and exceeds the preset line loss rate change threshold. At this time, it may be due to the failure of the transformer or the temporary power supply for additional load.

[0053] Without considering special cases, in the case that the line loss rate is not the light load line loss rate and / or the sudden change line loss rate, the load change between at least two transformers is detected based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption.

[0054] The technical solution can eliminate the line loss rate of special cases and improve the accuracy of load change detection.

[0055] Figure 2 is a flowchart of another load change detection method provided in the embodiments of the present application. The present embodiment is optimized based on the above technical solutions. In the present embodiment, optionally, the at least two transformers include a first transformer and a second transformer, and the load change between the at least two transformers is detected based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption, including: detecting the load change between the first transformer and the second transformer based on the target value condition, wherein the target value condition includes at least one of the following: a first value condition of the line loss rate of the first transformer; a second value condition of the line loss rate of the second transformer; a third value condition of a first difference between the second power consumption corresponding to the first transformer and the loss power of the second transformer; and a fourth value condition of a second difference between the loss power of the first transformer and the second power consumption corresponding to the second transformer. Wherein, the explanations of the same or corresponding terms as in the above embodiments are not repeated here.

[0056] Referring to Figure 2The method of the embodiment can specifically include the following steps:

[0057] S210, for each of at least two transformers in a preset distance range, determining a plurality of topological loads connected to the transformer according to a transformer load topological relationship record, wherein the at least two transformers include a first transformer and a second transformer.

[0058] S220, determining a first power consumption of a first load capable of power consumption collection in the plurality of topological loads and a power consumption collection rate of the plurality of topological loads, and an output power of the transformer, wherein the power consumption collection rate is a percentage of the number of the first load to the number of the topological loads.

[0059] S230, estimating a second power consumption of a second load in the plurality of topological loads for which the power consumption is not collected based on the power consumption collection rate, and obtaining a line loss rate of the transformer and a loss power based on the first power consumption, the second power consumption, and the output power.

[0060] S240, detecting a load variation condition between the first transformer and the second transformer based on a target numerical condition, wherein the target numerical condition includes at least one of the following: a first numerical condition of the line loss rate of the first transformer; a second numerical condition of the line loss rate of the second transformer; a third numerical condition of a first difference between the second power consumption corresponding to the first transformer and the loss power of the second transformer; and a fourth numerical condition of a second difference between the loss power of the first transformer and the second power consumption corresponding to the second transformer.

[0061] The first transformer and the second transformer can be understood as transformers within a preset distance range and capable of load exchange.

[0062] The target numerical condition can be understood as a specific numerical size condition. It can include the first numerical condition of the line loss rate of the first transformer; the second numerical condition of the line loss rate of the second transformer; the third numerical condition of the first difference between the second power consumption corresponding to the first transformer and the loss power of the second transformer; and the fourth numerical condition of the second difference between the loss power of the first transformer and the second power consumption corresponding to the second transformer. Through the above four numerical conditions, the changes of the line loss rate of the transformer, the second power consumption, and the loss power can be reflected, so that the load variation condition between the first transformer and the second transformer can be detected.

[0063] The technical scheme of the embodiment of the application can realize accurate detection of the load variation condition through specific numerical conditions.

[0064] An optional technical solution, in the first numerical case, the line loss rate of the first transformer is negative, the second numerical case represents that the line loss rate of the second transformer exceeds the first preset positive value threshold, and the third numerical case represents that the first difference is within the first preset difference threshold, the load change condition is the second load connected with the first transformer recorded in the transformer load topology relationship record, which is transferred from the first transformer to the second transformer.

[0065] Wherein, the first preset positive value threshold is a preset line loss rate threshold; the first preset difference threshold is a preset difference threshold.

[0066] In the first numerical case, the line loss rate of the first transformer is negative, because the line loss rate cannot be negative, at this time the line loss rate must be distorted, which may be because the second load of the first transformer is connected to the second transformer, resulting in a decrease in the actual output power of the first transformer, and because the topology load of the first transformer recorded in the transformer load topology relationship record has not changed, the second power consumption of the second load is still calculated into the output power of the first transformer, resulting in that the power consumption of the collected topology load is greater than the output power of the first transformer, and the first numerical case is calculated to be negative.

[0067] At the same time, because the second load of the first transformer is connected to the second transformer, the actual output power of the second transformer increases, and because the topology load of the second transformer recorded in the transformer load topology relationship record has not changed, the power consumption of the collected topology load does not change, resulting in that the second numerical case represents that the line loss rate of the second transformer exceeds the first preset positive value threshold.

[0068] Further, further confirmation is needed, in the third numerical case, the first difference is within the first preset difference threshold, which indicates that the second power consumption corresponding to the first transformer is basically consistent with the loss power of the second transformer, at this time it can be determined that the second load connected with the first transformer recorded in the transformer load topology relationship record is transferred from the first transformer to the second transformer.

[0069] The above technical solution can accurately determine whether the second load connected with the first transformer is transferred from the first transformer to the second transformer by setting the corresponding threshold.

[0070] Another optional technical solution, in the first numerical case, the line loss rate of the first transformer exceeds the second preset positive value threshold, and the fourth numerical case represents that the second difference is within the second preset difference threshold, the load change condition is the second load connected with the second transformer recorded in the transformer load topology relationship record, which is transferred from the second transformer to the first transformer.

[0071] The second preset positive value threshold is a preset line loss rate threshold, which can be the same as or different from the first preset positive value threshold. The second preset difference threshold is a preset difference threshold, which can be the same as or different from the first preset difference threshold.

[0072] In the first numerical case, the line loss rate of the first transformer exceeds the second preset positive value threshold. This can be due to the second load of the second transformer being connected to the first transformer, causing the actual output power of the first transformer to increase. However, the topology load of the first transformer recorded in the transformer load topology relationship record does not change, so the power consumption of the topology load collected does not change, resulting in the first numerical case representing the line loss rate of the first transformer exceeding the first preset positive value threshold.

[0073] Further, further confirmation is needed. In the fourth value case, the second difference is within the first preset difference threshold, indicating that the second power consumption corresponding to the second transformer is basically consistent with the loss power of the first transformer. At this time, it can be determined that the second load connected to the second transformer recorded in the transformer load topology relationship record is adjusted to the first transformer by the second transformer.

[0074] The above technical solution can accurately determine whether the second load connected to the second transformer is adjusted to the first transformer by the second transformer by setting corresponding thresholds.

[0075] In order to better understand the above technical solutions, the following will be illustrated by specific examples. In this specific example, the transformer is a public transformer substation transformer including transformers A and B. The flowchart of the load variation detection method is as shown in Figure 3 The specific steps are as follows:

[0076] Step 1: Determine whether the power consumption data collection rate is greater than or equal to 90%

[0077] For the power consumers supplied by the public transformer substation transformers A and B within a distance of 1 km, the load variation condition is detected when the power consumption data collection rate is greater than or equal to 90%.

[0078] Step 2: Determine the fitting power

[0079] For transformer A, based on the historical power consumption of transformer A, the historical power consumption curve of transformer A is determined. Based on the historical power consumption curve and the data collection rate, the second power consumption of transformer A that is not collected is calculated. The first power consumption and the second power consumption of transformer A are fitted to obtain the fitting power of transformer A.

[0080] For transformer B, based on the historical power consumption of transformer B, the historical power consumption curve of transformer B is determined, and based on the historical power consumption curve and the data acquisition rate, the second power consumption of transformer B which is not collected is calculated. The first power consumption and the second power consumption of transformer B are fitted to obtain the fitting power of transformer B.

[0081] Step three: calculate line loss rate and loss power

[0082] For transformer A, based on the fitting power and the actual output power of transformer A, the line loss rate and the loss power of transformer A are calculated. For transformer B, based on the fitting power and the actual output power of transformer B, the line loss rate and the loss power of transformer B are calculated. The specific formula is as follows:

[0083] Loss power = output power - fitting power

[0084] Line loss rate = loss power / output power

[0085] Step four: clean up data and remove interference data

[0086] Considering the case of transformer light load in public transformer area, the data of light load line loss rate is removed; considering the line loss rate fluctuation of transformer in public transformer area during power transfer, the data of sudden line loss rate exceeding the preset line loss rate change threshold is removed; due to the influence of communication signal and communication module of field measurement terminal equipment, the collected data is seriously missing, so the missing and error data is removed.

[0087] Step five: determine the load change

[0088] Rule one: the line loss rate of transformer A suddenly changes to negative line loss rate, and the line loss rate of transformer B exceeds the first preset positive threshold. And the difference between the second power consumption of transformer A and the loss power of transformer B is within the first preset difference threshold. In this case, the second power consumption corresponding to transformer A and the loss power of transformer B are basically consistent, so it can be determined that the load corresponding to the second power consumption in transformer A is transferred to transformer B.

[0089] Rule two: the line loss rate of transformer A exceeds the second preset positive threshold. And the difference between the loss power of transformer A and the second power consumption of transformer B is within the second preset difference threshold. In this case, the loss power corresponding to transformer A and the second power consumption of transformer B are basically consistent, so it can be determined that the load corresponding to the second power consumption in transformer B is transferred to transformer A.

[0090] In this specific example, through specific numerical analysis, the detection efficiency of load change can be improved.

[0091] Figure 4 A structure block diagram of a load variation detection device is provided for an embodiment of the present application, which is used to perform the load variation detection method provided by any of the above embodiments. The device and the load variation detection method of each embodiment belong to the same inventive concept, and the details not described in the embodiment of the load variation detection device can be referred to the embodiment of the load variation detection method. Referring to Figure 4 , the device can specifically include a topology load determination module 310, an output power determination module 320, a loss power obtaining module 330, and a load variation detection module 340. Among them,

[0092] The topology load determination module 310 is configured to determine, for each of the at least two transformers within the preset distance range, a plurality of topology loads connected to the transformer according to the transformer load topology relationship record.

[0093] The output power determination module 320 is configured to determine a first power consumption of a first load capable of collecting power consumption in the plurality of topology loads and a power consumption collection rate of the plurality of topology loads, and an output power of the transformer, wherein the power consumption collection rate is a percentage of the number of the first load to the number of the topology load.

[0094] The loss power obtaining module 330 is configured to estimate a second power consumption of a second load in the plurality of topology loads which does not collect power consumption based on the power consumption collection rate, and obtain a line loss rate and a loss power of the transformer based on the first power consumption, the second power consumption and the output power.

[0095] The load variation detection module 340 is configured to detect a load variation condition between the at least two transformers based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption.

[0096] Optionally, the at least two transformers include a first transformer and a second transformer, and the load variation detection module 340 includes:

[0097] A load variation detection submodule is configured to detect a load variation condition between the first transformer and the second transformer based on a target value condition, wherein the target value condition includes at least one of the following:

[0098] A first value condition of the line loss rate of the first transformer;

[0099] A second value condition of the line loss rate of the second transformer;

[0100] A third value condition of a first difference between the second power consumption corresponding to the first transformer and the loss power of the second transformer; and

[0101] A fourth value of a second difference between the loss power of the first transformer and a second power consumption corresponding to the second transformer.

[0102] On this basis, optionally, in a case where the first value represents that the line loss rate of the first transformer is a negative value, the second value represents that the line loss rate of the second transformer exceeds a first preset positive threshold value, and the third value represents that the first difference is within a first preset difference threshold value, the load change condition is a second load connected to the first transformer recorded in the transformer load topology relationship record and transferred from the first transformer to the second transformer.

[0103] Optionally, in a case where the first value represents that the line loss rate of the first transformer exceeds a second preset positive threshold value, and the fourth value represents that the second difference is within a second preset difference threshold value, the load change condition is a second load connected to the second transformer recorded in the transformer load topology relationship record and transferred from the second transformer to the first transformer.

[0104] In another optional embodiment, the load change detection module 340 comprises:

[0105] The second power consumption estimation submodule is configured to estimate, in a case where the power consumption data collection rate is greater than a preset collection rate threshold value, a second power consumption of a second load in the plurality of topology loads for which the power consumption is not collected based on the power consumption collection rate.

[0106] In yet another optional embodiment, the loss power obtaining module 330 comprises:

[0107] The historical power consumption obtaining submodule is configured to obtain historical power consumptions of the plurality of topology loads.

[0108] The historical power consumption curve drawing submodule is configured to draw a historical power consumption curve of the plurality of topology loads based on the historical power consumptions.

[0109] The power consumption non-collection rate determination submodule is configured to determine, based on the power consumption collection rate, a power consumption non-collection rate of the plurality of topology loads.

[0110] The second power consumption estimation submodule is configured to estimate, based on the power consumption non-collection rate and the historical power consumption curve, a second power consumption of a second load in the plurality of topology loads for which the power consumption is not collected.

[0111] In still another optional embodiment, the loss power obtaining module 330 comprises:

[0112] The fitted power consumption obtaining submodule is configured to add the first power consumption and the second power consumption to obtain a fitted power consumption.

[0113] The loss power obtaining submodule is configured to subtract the fitted power consumption from the output power to obtain the loss power of the transformer.

[0114] The line loss rate obtaining submodule is configured to divide the loss power by the output power to obtain the line loss rate of the transformer.

[0115] In another alternative, the load variation detection module 340 comprises:

[0116] The load variation condition detection submodule is configured to, in the case that the line loss rate is not the light load line loss rate of the transformer at the light load time, and / or exceeds the preset line loss rate change threshold, detect the load variation condition between at least two transformers based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption.

[0117] In another alternative, the load variation detection device further comprises:

[0118] The transformer load topology relationship record updating module is configured to update the transformer load topology relationship record based on the load variation condition.

[0119] The load variation detection device in the embodiment of the present application, through the topology load determination module, determines, for each of the at least two transformers within the preset distance range, a plurality of topology loads connected to the transformer according to the transformer load topology relationship record; through the output power determination module, determines the first power consumption of the first load capable of collecting power consumption in the plurality of topology loads and the power consumption collection rate of the plurality of topology loads, and the output power of the transformer, wherein the power consumption collection rate is the percentage of the number of the first load to the number of the topology load; through the loss power obtaining module, estimates the second power consumption of the second load in the plurality of topology loads which does not collect power consumption based on the power consumption collection rate, and obtains the line loss rate and the loss power of the transformer based on the first power consumption, the second power consumption and the output power; through the load variation detection module, detects the load variation condition between at least two transformers based on the obtained line loss rate and loss power of each transformer and the corresponding second power consumption, so as to realize the detection of the load variation. Through the estimation of the second power consumption which is not collected, the line loss rate and the loss power of the transformer are obtained, so that the variation condition of the transformer load is obtained based on the obtained data analysis, without manual on-site verification, and the detection efficiency of the load variation is improved.

[0120] The load variation detection device provided in the embodiment of the present application can execute the load variation detection method provided in any embodiment of the present application, and has the corresponding functional modules and beneficial effects of the execution method.

[0121] It is worth noting that in the above embodiment of the load variation detection device, each unit and module included is only divided according to the functional logic, but is not limited to the above division, as long as the corresponding function can be realized; in addition, the specific name of each functional unit is only for the convenience of mutual differentiation, and does not serve to limit the protection scope of the present application.

[0122] Figure 5 A structural schematic diagram of an electronic device 10 that can be used to implement embodiments of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptops, desktops, tablets, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular telephones, smart phones, wearable devices (e.g., headsets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not intended to limit the implementations of the present application described and / or claimed in this document.

[0123] As shown in Figure 5 The electronic device 10 includes at least one processor 11, and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11, wherein the memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or loaded into the random access memory (RAM) 13 from the storage unit 18. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14. A plurality of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, a speaker, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunications networks. The processor 11 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc.

[0124] The processor 11 performs the various methods and processes described above, such as the load variation detection method. In some embodiments, the load variation detection method can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded onto and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. One or more steps of the load variation detection method described above can be performed when the computer program is loaded onto the RAM 13 and executed by the processor 11. Alternatively, in other embodiments, the processor 11 can be configured to perform the load variation detection method by any other suitable means, such as by means of firmware. The various implementations of the systems and techniques described above in this document can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a programmable logic device (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device. These computer programs (also known as programs, software, software applications programs, applications, components, program components, or code) include program instructions, commands, commands, components, or code, which, when executed in hardware, implement the functions / operations specified in the flow diagrams and / or the block diagrams. Computer programs can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed by the processor, implements the functions / operations specified in the flow diagrams and / or the block diagrams. Computer programs can be executed entirely on a machine, partially on a machine, partially on a machine as a standalone software package and partially on a remote machine, or entirely on a remote machine or server. In the context of the present invention, a computer readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. Computer readable storage media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the above. Alternatively, a computer readable storage medium can be a machine readable signal medium.More specific examples of machine-readable storage media would include a one or more lines of electrical connections, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input. The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet. The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server can arise by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, which solves the defects of large management difficulty and weak business scalability in traditional physical host and VPS service. It should be understood that various forms of flow shown above can be used to reorder, add or delete steps. For example, each step described in the present application can be executed in parallel, sequentially or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, which is not limited herein.

[0125] The above detailed description does not limit the scope of the application. Various modifications, combinations, sub-combinations and alternatives can be made to the detailed description. Any modification, equivalent replacement and improvement etc. made within the spirit and principle of the application shall be included in the scope of the application.

Claims

1. A load variation detection method characterized by comprising: include: For each of the at least two transformers within a preset distance range, determine a plurality of topological loads connected to the transformer according to the transformer load topological relationship record; Determine a first power consumption of a first load capable of power consumption collection among the multiple topological loads, a power consumption collection rate of the multiple topological loads, and an output power of the transformer, wherein the power consumption collection rate is a percentage of the number of the first loads to the number of the topological loads; estimating a second power consumption of a second load whose power consumption is not collected among the multiple topological loads based on the power consumption collection rate, and obtaining a line loss rate and power loss of the transformer based on the first power consumption, the second power consumption, and the output power; Based on the obtained line loss rate and the lost power of each transformer and the corresponding second power consumption, load changes between at least two of the transformers are detected.

2. The method of claim 1, wherein, The at least two transformers include a first transformer and a second transformer, and the detecting a load change between the at least two transformers based on the obtained line loss rate and the lost power of each transformer and the corresponding second power consumption includes: Based on a target numerical condition, a load change condition between the first transformer and the second transformer is detected, wherein the target numerical condition includes at least one of the following: a first numerical value of the line loss rate of the first transformer; a second numerical value of the line loss rate of the second transformer; a third numerical value of a first difference between the second power consumption corresponding to the first transformer and the power loss of the second transformer; and A fourth numerical value of a second difference between the power loss of the first transformer and the second power consumption corresponding to the second transformer.

3. The method according to claim 2, wherein: When the first numerical situation represents that the line loss rate of the first transformer is negative, the second numerical situation represents that the line loss rate of the second transformer exceeds a first preset positive threshold, and the third numerical situation represents that the first difference is within the first preset difference threshold, the load change situation is that the second load connected to the first transformer recorded in the transformer load topology relationship record is transferred from the first transformer to the second transformer.

4. The method according to claim 2, wherein: When the first numerical condition indicates that the line loss rate of the first transformer exceeds a second preset positive threshold, and the fourth numerical condition indicates that the second difference is within the second preset difference threshold, the load change condition is that the second load connected to the second transformer recorded in the transformer load topology relationship record is transferred from the second transformer to the first transformer.

5. The method of claim 1, wherein, The estimating, based on the power consumption collection rate, a second power consumption of a second load whose power consumption has not been collected among the multiple topology loads, includes: In a case where the power consumption data collection rate is greater than a preset collection rate threshold, a second power consumption of a second load in the plurality of topology loads that has not collected power consumption is estimated based on the power consumption collection rate.

6. The method of claim 1, wherein, The estimating of the second power consumption of the second load in the plurality of topology loads that has not collected power consumption based on the power consumption collection rate comprises: obtaining historical power consumption of the plurality of topology loads; drawing a historical power consumption curve of the plurality of topology loads based on the historical power consumption; determining a power consumption non-collection rate of the plurality of topology loads based on the power consumption collection rate; estimating the second power consumption of the second load in the plurality of topology loads that has not collected power consumption based on the power consumption non-collection rate and the historical power consumption curve.

7. The method of claim 1, wherein, The obtaining of the line loss rate and the loss power of the transformer based on the first power consumption, the second power consumption, and the output power comprises: adding the first power consumption and the second power consumption to obtain a fitted power consumption; subtracting the fitted power consumption from the output power to obtain the loss power of the transformer; dividing the loss power by the output power to obtain the line loss rate of the transformer.

8. The method of claim 1, wherein, The detecting of the load variation between at least two transformers based on the obtained line loss rate, loss power, and corresponding second power consumption of each transformer comprises: In a case where the line loss rate is not a light load line loss rate at a light load time of the transformer, and / or exceeds a preset line loss rate change threshold, the detecting of the load variation between at least two transformers based on the obtained line loss rate, loss power, and corresponding second power consumption of each transformer.

9. The method of claim 1, wherein, After the detecting of the load variation between at least two transformers, the method further comprises: updating the transformer load topology relationship record based on the load variation.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions for causing the processor to implement the load variation detection method of any one of claims 1-9 when executed. The computer readable storage medium stores computer instructions for causing the processor to implement the load variation detection method of any one of claims 1-9 when executed.

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