A method and apparatus for analyzing electricity theft based on low-voltage distribution area topology

Abstract

This invention relates to the field of power distribution system management technology, specifically disclosing a method and apparatus for electricity theft analysis based on the topology of a low-voltage distribution area. The method includes: determining the topology of the current low-voltage distribution area; dividing the low-voltage distribution area into multiple sub-regions based on the topology; determining the power consumption of each sub-region; obtaining the total input power of the current low-voltage distribution area; performing electricity theft analysis based on the total input power and the power consumption of each sub-region, and generating corresponding electricity theft analysis results. By utilizing the topology of the low-voltage distribution area to determine the physical relationships of all electricity users in the low-voltage distribution area and to divide it into sub-regions, illegal users engaging in electricity theft can be analyzed online, quickly, and accurately, meeting the actual needs of enterprises.

Description

Technical Field

[0001] This invention relates to the field of power distribution system management technology, specifically to a method for analyzing electricity theft based on low-voltage distribution area topology and a device for analyzing electricity theft based on low-voltage distribution area topology. Background Technology

[0002] In a power system, transformers convert and transmit electrical energy produced by power generation companies to power consumption scenarios for user use. In order to measure the actual consumption of the transmitted electrical energy, instrument transformers are used to convert the transmitted electrical energy from high voltage to low voltage, and relevant data are collected by detection instruments.

[0003] An instrument transformer is a device used in power systems to measure or protect the current and voltage in the power system. It converts high voltage or large current into lower voltage or current, enabling measuring equipment and protection devices to operate under safe and economical conditions.

[0004] In practical use, electricity theft often occurs in power distribution networks. Traditional monitoring methods mainly rely on manual, offline investigations for theft detection. However, this method is time-consuming, labor-intensive, and causes significant inconvenience for technicians, greatly reducing their work efficiency. Enterprises hope to find an online method for electricity theft analysis to reduce the number of tasks assigned to technicians and lower operating costs. At the same time, enterprises also expect higher accuracy in electricity theft analysis to provide more precise data guidance for theft detection. Therefore, existing technologies cannot meet these practical needs. Summary of the Invention

[0005] To overcome the aforementioned technical problems in the prior art, this invention provides a method and apparatus for analyzing electricity theft based on the topology of a low-voltage distribution area. By utilizing the topology of the low-voltage distribution area to determine the physical relationships of all electricity users in the low-voltage distribution area and to divide it into sub-regions, it is possible to analyze online, quickly, and accurately identify illegal users engaging in electricity theft, thus meeting the actual needs of enterprises.

[0006] To achieve the above objectives, embodiments of the present invention provide a method for analyzing electricity theft based on the topology of a low-voltage distribution area. The method includes: determining the topology of the current low-voltage distribution area; dividing the low-voltage distribution area into multiple sub-regions based on the topology; determining the power consumption of each sub-region; obtaining the total input power of the current low-voltage distribution area; performing electricity theft analysis based on the total input power and the power consumption of each sub-region, and generating corresponding electricity theft analysis results.

[0007] Preferably, determining the topology of the current low-voltage distribution area includes: determining the total input voltage of the current low-voltage distribution area and the sub-input voltage of each user within the current low-voltage distribution area; sorting each sub-input voltage from high to low based on the total input voltage and the sub-input voltage to obtain sorted voltages; performing physical connection analysis on the sorted voltages to generate analysis results; and creating the topology of the current low-voltage distribution area based on the analysis results and the sorted voltages.

[0008] Preferably, the step of performing physical connection analysis on the sorted voltages and generating analysis results includes: obtaining equipotential voltages with equal voltage values ​​from the sorted voltages; obtaining fluctuation information of all equipotential voltages and determining the fluctuation pattern based on the fluctuation information; determining the same input voltage based on the fluctuation pattern; and generating analysis results for physical connections based on the same input voltage.

[0009] Preferably, the step of performing electricity theft analysis based on the total input power and the power consumption of each sub-region to generate corresponding electricity theft analysis results includes: determining the total metered power consumption based on the power consumption of each sub-region; determining whether there is an abnormal power consumption based on the total input power and the total metered power consumption; if there is an abnormal power consumption, determining whether the corresponding sub-region is equipped with a current transformer; if the corresponding sub-region is equipped with a current transformer, determining the current ratio of the current transformer; determining whether there is at least one abnormal transformer based on the current ratio; if there is at least one abnormal transformer, generating corresponding alarm information; if there is no at least one abnormal transformer, performing electricity theft analysis based on the total input power and the power consumption of each sub-region to generate corresponding electricity theft analysis results.

[0010] Preferably, the current transformer is connected to the testing equipment, and determining the current ratio of the current transformer includes: determining a stable power consumption period; obtaining the stable power consumption of each sub-region during the stable power consumption period; controlling the testing equipment to perform power consumption operation according to random power, wherein the random power is N times the stable power consumption, and N is a natural number greater than 5; and generating the current ratio of each current transformer based on the random power, the stable power consumption, and the total input power.

[0011] Preferably, determining the stable electricity consumption period includes: obtaining the electricity consumption fluctuation curve corresponding to the historical low electricity consumption period; extracting a stable electricity consumption curve segment from the electricity consumption fluctuation curve according to a preset fluctuation amplitude; and determining the stable electricity consumption period based on the stable electricity consumption curve segment.

[0012] Preferably, the step of performing electricity theft analysis based on the total input power and the power consumption of each sub-region to generate corresponding electricity theft analysis results includes: determining the input voltage of each sub-region based on the topology; determining the corresponding input current based on the power consumption of each sub-region and the input voltage; and performing electricity theft analysis based on the input current to generate corresponding electricity theft analysis results.

[0013] Accordingly, the present invention also provides a power theft analysis device based on the topology of a low-voltage distribution area. The device includes: a topology determination unit for determining the topology of the current low-voltage distribution area; a region division unit for dividing the low-voltage distribution area into multiple sub-regions based on the topology; a first power determination unit for determining the power consumption of each sub-region; a second power determination unit for obtaining the total input power of the current low-voltage distribution area; and a power theft analysis unit for performing power theft analysis based on the total input power and the power consumption of each sub-region, and generating corresponding power theft analysis results.

[0014] On the other hand, embodiments of the present invention provide a processor for running a program, wherein the program is run to execute the methods described in embodiments of the present invention.

[0015] On the other hand, embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the methods described in the embodiments of the present invention.

[0016] The present invention has at least the following technical effects through the technical solution provided by the present invention:

[0017] By acquiring the topology of the low-voltage distribution area, the physical connection and power consumption of each user in the area can be accurately obtained. Then, by combining the input power of each node and the actual power consumption collected, electricity theft can be quickly and accurately analyzed. At the same time, it provides technicians with precise location information, providing reliable data support for subsequent electricity theft investigations and effectively improving the work efficiency of technicians.

[0018] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a flowchart illustrating the specific implementation of the electricity theft analysis method based on low-voltage distribution area topology provided in this embodiment of the invention.

[0021] Figure 2 This is a schematic diagram of the electricity theft analysis device based on a low-voltage distribution area topology provided in an embodiment of the present invention. Detailed Implementation

[0022] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0023] In this invention, the terms "system" and "network" are used interchangeably. "Multiple" refers to two or more; therefore, in this invention, "multiple" can also be understood as "at least two." "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / ", unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship. Furthermore, it should be understood that in the description of this invention, terms such as "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or order.

[0024] Please see Figure 1 This invention provides a method for analyzing electricity theft based on low-voltage distribution area topology, the method comprising:

[0025] S10: Determine the topology of the current low-voltage distribution area;

[0026] S20: Based on the topology, the low-voltage distribution area is divided into multiple sub-regions;

[0027] S30: Determine the power consumption of each sub-region;

[0028] S40: Obtain the total input power of the current low-voltage distribution area;

[0029] S50: Perform electricity theft analysis based on the total input power and the power consumption of each sub-region, and generate corresponding electricity theft analysis results.

[0030] The electricity theft analysis method based on low-voltage distribution area topology provided in this invention is applied to the monitoring system of low-voltage distribution area power grid. Currently, each electricity consumption area is equipped with a distribution box, which in turn is equipped with current transformer equipment. Each user terminal in the electricity consumption area is equipped with an electricity meter, which is used to detect the electricity consumption of the corresponding user terminal.

[0031] In the specific implementation process, the topology of the current low-voltage distribution area is first obtained. In the conventional approach, technicians often manually check each power user in the low-voltage distribution area and record their physical connection sequence in order to draw the topology of the low-voltage distribution area. However, this method is inefficient, has a huge workload, and causes great trouble for technicians.

[0032] In this embodiment of the invention, determining the topology of the current low-voltage distribution area includes: determining the total input voltage of the current low-voltage distribution area and the sub-input voltage of each user within the current low-voltage distribution area; sorting each sub-input voltage from high to low based on the total input voltage and the sub-input voltage to obtain sorted voltages; performing physical connection analysis on the sorted voltages to generate analysis results; and creating the topology of the current low-voltage distribution area based on the analysis results and the sorted voltages.

[0033] In one possible implementation, the topology of the current low-voltage distribution area is intelligently mapped by utilizing the principle that the farther a user is from the power input terminal, the lower their input voltage. Specifically, the total input voltage of the current low-voltage distribution area and the sub-input voltage of each user within the area are first determined. Then, based on the total input voltage and sub-input voltages, for example, using the total input voltage as the starting point of the topology, each sub-input voltage is sorted from high to low to obtain the sorted voltages.

[0034] During implementation, user nodes connected to the same input voltage node have the same input voltage and can therefore be considered as multiple child nodes in parallel. However, in application, each child node is connected to multiple electricity users. At this time, the input voltage of different electricity users under different child nodes may be the same, which affects the accurate construction of the topology.

[0035] To address the aforementioned technical issues, a physical connection analysis is performed on the sorted voltages. Specifically, in this embodiment of the invention, the physical connection analysis of the sorted voltages and the generation of analysis results includes: obtaining equipotential voltages with equal voltage values ​​from the sorted voltages; obtaining fluctuation information of all equipotential voltages and determining fluctuation patterns based on the fluctuation information; determining the same input voltage based on the fluctuation patterns; and generating analysis results for the physical connections based on the same input voltage.

[0036] In one possible implementation, firstly, equipotential voltages with the same input voltage value are obtained from the sorted voltages, i.e., voltages with equal potential. Then, fluctuation information of all equipotential voltages is obtained. In actual analysis, technicians have found that, on the one hand, the voltage fluctuations of different nodes are different due to load changes, environmental factors, etc.; on the other hand, for power users connected to the same input node, their input voltage fluctuations are consistent with the output voltage fluctuations of that input node. Thus, all power users connected to the current input node can be analyzed, i.e., the power users physically connected under each node can be determined, and corresponding analysis results can be generated. Finally, the topology of the current low-voltage distribution area is created based on the above analysis results and the sorted voltages.

[0037] At this point, the low-voltage distribution area is divided into multiple sub-regions based on the aforementioned topology. In the subsequent electricity theft analysis, the power consumption of each sub-region is determined by summarizing the meter data of each user within each sub-region. However, this collected power consumption may have discrepancies. Therefore, the total input power is further collected using the aforementioned current transformer, and electricity theft analysis is performed based on this total input power and the power consumption of each sub-region to generate the corresponding electricity theft analysis results.

[0038] In one embodiment of the present invention, during the transmission of electrical energy, there may be power loss due to force majeure factors such as line loss and transformer ratio. Therefore, there is a power loss difference between the power consumption of the power consumption area and the total input power. Thus, under normal circumstances, the total input power, power consumption, and power loss of the power consumption area follow the principle of energy conservation. Therefore, it can be determined whether there is an abnormal power consumption in the current power consumption area at a certain time period by judging whether the total input power, power consumption, and power loss are in accordance with the principle of energy conservation. If the total input power of the current transformer configured for the current power consumption area at 11 PM is 900W, and the power consumption of the power consumption area is calculated using the aforementioned implementation method to be, for example, 850W, with a fixed energy loss of 10W, the actual deviation between the total input power of 900W and the power consumption of 850W is calculated to be 50W. By comparison, the actual deviation of 50W is much greater than the actual energy loss of 10W, thus it is determined that there is an abnormal power consumption in the current power consumption area at 11 PM. If the actual deviation between the total input power and the power consumption does not exceed the energy loss, then it can be determined that there is no abnormal power consumption in the current power consumption area.

[0039] By implementing the above methods, the energy conservation principle can be used to determine whether there are any abnormalities in the real-time electricity consumption of the current power consumption area within 24 hours. This allows for a more accurate location of any abnormal electricity consumption situation in the power consumption area at a certain moment.

[0040] For example, in one embodiment, a risk of electricity theft is detected in the current low-voltage distribution area based on the total input power and the power consumption of each sub-region, but it is uncertain whether this is due to a transformer malfunction. Therefore, the current ratio of the current transformer is further tested based on the aforementioned data. In existing detection methods, the power to the line where the transformer is located needs to be disconnected for testing, which causes inconvenience to electricity users and reduces the user experience.

[0041] To address the aforementioned technical problems, in this embodiment of the invention, the current transformer is connected to a testing device. Determining the current transformer's current ratio includes: determining a stable power consumption period; acquiring the stable power consumption of each sub-region during the stable power consumption period; controlling the testing device to perform power consumption operations according to random power, where the random power is N times the stable power consumption, and N is a natural number greater than 5; and generating the current ratio of each current transformer based on the random power, the stable power consumption, and the total input power.

[0042] Furthermore, determining the stable electricity consumption period includes: obtaining the electricity consumption fluctuation curve corresponding to the historical low electricity consumption period; extracting a stable electricity consumption curve segment from the electricity consumption fluctuation curve according to a preset fluctuation amplitude; and determining the stable electricity consumption period based on the stable electricity consumption curve segment.

[0043] In one possible embodiment, after obtaining the historical off-peak electricity consumption period (e.g., 3:00 AM - 3:30 AM) of the current electricity consumption area through the aforementioned real-time method, the stable electricity consumption period of the area is further determined. During this stable electricity consumption period, the electricity consumption of the area is small and the fluctuation range is not large, and the electricity consumption is relatively stable. When the current ratio is measured by the connected testing equipment, the electricity consumption of the area during this period will not affect the detection of the current ratio. Specifically, the electricity consumption fluctuation curve corresponding to the electricity consumption period of 3:00 AM - 3:30 AM is obtained, the fluctuation range of the electricity consumption fluctuation curve is analyzed, and the fluctuation range with the smallest fluctuation range is extracted. The criterion for the smallest fluctuation range can be that the electricity consumption fluctuation range is less than ±5%. The resulting curve segment is the stable electricity consumption curve segment, and the time period corresponding to the stable electricity consumption curve segment is determined as the stable electricity consumption period, for example, 3:10 AM - 3:20 AM. Then, obtain the stable power consumption of the power consumption area during the nighttime period from 3:10 to 3:20, for example, 50W. At this time, the power consumption of the power consumption area is relatively stable, and there is no need to disconnect the power to the power consumption area. Directly connect the test equipment to the current transformer. In order to reduce the impact of the power consumption fluctuation of the power consumption area on the current ratio of the current transformer after connecting the test equipment, control the random power consumption of the test equipment to be much more than N times the stable power consumption of the sub-area, where N is a natural number greater than 5. For example, control the random power consumption of the test equipment to be 6 times the current sub-area's 50W power consumption, that is, the random power consumption is 300W. At this time, the fluctuation of the current sub-area's stable power consumption has a negligible impact on the measurement of the current transformer's current ratio. Then, obtain the total input power of the current transformer, for example, 400W. Calculate the power ratio of the current transformer based on the random power of the test equipment and the total input power of the current transformer, which is 3 / 4. At this time, combined with the voltage values ​​of the primary and secondary sides, the current ratio of the current transformer can be determined. Finally, electricity theft analysis is performed based on the current ratio of the current transformer, and the electricity theft analysis results are generated.

[0044] Through the above implementation method, after connecting the test equipment, the power consumption of the test equipment is adjusted to be much greater than the power consumption of the power consumption area, so that the power consumption area has little impact on the measurement of the current ratio of the current transformer. During the measurement of the current ratio of the current transformer, no impact will be caused to the power users, thus improving the user experience.

[0045] Specifically, after obtaining the current ratio of the current transformer, and combining it with the rated ratio set at the factory, it can be determined whether the current transformer is abnormal. In one implementation, for example, if the current ratio of the current transformer is calculated to be 950 / 1 and the rated ratio is 1000 / 1, a preset deviation value of 10% for the current transformer ratio can be set based on the normal wear and tear causing the ratio deviation. Then, the actual deviation value between the current ratio 950 / 1 and the rated ratio 1000 / 1 is calculated to be 5%. If the actual deviation value of 5% is less than the preset deviation value of 10%, then the current transformer is normal, and further subsequent operation steps are performed, i.e., determining that the abnormal power consumption in this sub-area is due to electricity theft, and then performing electricity theft analysis operation on this sub-area; conversely, if the calculated actual deviation value is greater than the preset deviation value, then it is determined that the current transformer in this power consumption area is faulty and needs to be replaced first. Therefore, a corresponding alarm message is immediately generated to prompt relevant technicians to go for maintenance or replacement.

[0046] In the specific process of electricity theft analysis, based on the total input power and the power consumption of each sub-region, it can be determined whether the deviation between the actual power consumption data of each sub-region and its input power data is too large. If the deviation is too large, it can be determined that there is electricity theft in that sub-region, and thus the corresponding electricity theft analysis results are generated immediately. For example, the electricity theft analysis results may include, but are not limited to, information such as the amount of electricity stolen, the area of ​​electricity theft, and the time of electricity theft, so as to provide technicians with accurate and efficient investigation data and improve the efficiency of electricity theft investigation.

[0047] In this embodiment of the invention, the step of performing electricity theft analysis based on the total input power and the power consumption of each sub-region to generate corresponding electricity theft analysis results includes: determining the input voltage of each sub-region based on the topology; determining the corresponding input current based on the power consumption of each sub-region and the input voltage; and performing electricity theft analysis based on the input current to generate corresponding electricity theft analysis results.

[0048] In one implementation, after obtaining the total input power of the power consumption area configuration, the input voltage of each sub-area is first determined by the calculated topology. Then, the input current is determined based on the power consumption and input voltage of each sub-area. On this basis, electricity theft analysis is performed based on the input current. For example, the input current of each sub-area is compared with the daily input current to determine whether there is a significant deviation. If so, electricity theft may occur in that sub-area, and the corresponding electricity theft analysis result is generated.

[0049] Through the aforementioned real-time method, when electricity theft is identified in a certain electricity consumption area, it is possible to accurately pinpoint which sub-areas are involved in the theft, precisely locate the smallest area where the electricity thief is located, and thus quickly and accurately locate the electricity thief. This improves the accuracy of electricity theft analysis, increases the work efficiency of technical personnel, and meets the actual needs of enterprises.

[0050] The following description, in conjunction with the accompanying drawings, illustrates the electricity theft analysis device based on a low-voltage distribution area topology provided in this embodiment of the invention.

[0051] Please see Figure 2 Based on the same inventive concept, this invention provides a power theft analysis device based on the topology of a low-voltage distribution area. The device includes: a topology determination unit for determining the topology of the current low-voltage distribution area; a region division unit for dividing the low-voltage distribution area into multiple sub-regions based on the topology; a first power determination unit for determining the power consumption of each sub-region; a second power determination unit for obtaining the total input power of the current low-voltage distribution area; and a power theft analysis unit for performing power theft analysis based on the total input power and the power consumption of each sub-region, and generating corresponding power theft analysis results.

[0052] On the other hand, embodiments of the present invention provide a processor for running a program, wherein the program is run to execute the methods described in embodiments of the present invention.

[0053] On the other hand, embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the methods described in the embodiments of the present invention.

[0054] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0055] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0056] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a microcontroller, chip, or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0057] Furthermore, various different implementations of the present invention can be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed in the present invention.

Claims

1. A method for analyzing electricity theft based on low-voltage distribution area topology, characterized in that, The method includes: Determine the topology of the current low-voltage distribution area; Based on the aforementioned topology, the low-voltage distribution area is divided into multiple sub-regions; Determine the power consumption of each sub-region; Get the total input power of the current low-voltage distribution area; Based on the total input power and the power consumption of each sub-region, an electricity theft analysis is performed to generate the corresponding electricity theft analysis results. Determining the current low-voltage distribution area topology includes: Determine the total input voltage of the current low-voltage distribution area and the sub-input voltage of each user within the current low-voltage distribution area; Based on the total input voltage and the sub-input voltages, each sub-input voltage is sorted from high to low to obtain the sorted voltages; Physical connection analysis is performed on the sorted voltages to generate analysis results; Based on the analysis results and the sorted voltages, the current topology of the low-voltage zone is created. The electricity theft analysis is performed based on the total input power and the power consumption of each sub-region, generating corresponding electricity theft analysis results, including: The total power consumption is determined based on the power consumption of each sub-region; Based on the total input power and the total metered power consumption, determine whether there is any abnormal power consumption; If there is an abnormal power consumption, determine whether the corresponding sub-area is equipped with a current transformer; If a current transformer is configured in the corresponding sub-region, determine the current ratio of the current transformer; Based on the current ratio, determine whether there is at least one abnormal current transformer; If at least one faulty current transformer is present, a corresponding alarm message will be generated. If there is no abnormal transformer, perform electricity theft analysis based on the total input power and the power consumed in each sub-region, and generate the corresponding electricity theft analysis results.

2. The method according to claim 1, characterized in that, The physical connection analysis of the sorted voltages, generating analysis results, includes: Obtain equipotential voltages with equal voltage values ​​from the sorted voltages; Obtain fluctuation information of all equipotential voltages, and determine the fluctuation pattern based on the fluctuation information; The same input voltage is determined based on the aforementioned fluctuation pattern; Analysis results for the physical connection are generated based on the same input voltage.

3. The method according to claim 1, characterized in that, The current transformer is connected to the testing equipment, and determining the current ratio of the current transformer includes: Identify periods of stable electricity demand; Obtain the stable power consumption of each sub-region during the period of stable power consumption; The test equipment is controlled to perform power consumption operations according to random power, where the random power is N times the stable power consumption, and N is a natural number greater than 5. The current ratio of each current transformer is generated based on the random power, the stable power consumption, and the total input power.

4. The method according to claim 3, characterized in that, The determination of stable electricity consumption periods includes: Obtain the electricity consumption fluctuation curve corresponding to the historical off-peak electricity consumption period; According to the preset fluctuation range, a stable electricity consumption curve segment is extracted from the electricity consumption fluctuation curve; The stable electricity consumption period is determined based on the stable electricity consumption curve segment.

5. The method according to claim 1, characterized in that, The electricity theft analysis is performed based on the total input power and the power consumption of each sub-region, generating corresponding electricity theft analysis results, including: The input voltage for each sub-region is determined based on the topology. The corresponding input current is determined based on the power consumption of each sub-region and the input voltage; Based on the input current, an electricity theft analysis is performed, and the corresponding electricity theft analysis results are generated.

6. A power theft analysis device based on a low-voltage distribution area topology, characterized in that, The device includes: Topology determination unit, used to determine the topology of the current low-voltage distribution area; A region division unit is used to divide the low-voltage distribution area into multiple sub-regions based on the topology; The first power determination unit is used to determine the power consumption of each sub-region; The second power determination unit is used to obtain the total input power of the current low-voltage distribution area; The electricity theft analysis unit is used to perform electricity theft analysis based on the total input power and the power consumption of each sub-region, and generate corresponding electricity theft analysis results. The topology determination unit is specifically used for: Determine the total input voltage of the current low-voltage distribution area and the sub-input voltage of each user within the current low-voltage distribution area; Based on the total input voltage and the sub-input voltages, each sub-input voltage is sorted from high to low to obtain the sorted voltages; Physical connection analysis is performed on the sorted voltages to generate analysis results; Based on the analysis results and the sorted voltages, the current topology of the low-voltage zone is created. The electricity theft analysis unit is specifically used for: The total power consumption is determined based on the power consumption of each sub-region; Based on the total input power and the total metered power consumption, determine whether there is any abnormal power consumption; If there is an abnormal power consumption, determine whether the corresponding sub-area is equipped with a current transformer; If a current transformer is configured in the corresponding sub-region, determine the current ratio of the current transformer; Based on the current ratio, determine whether there is at least one abnormal current transformer; If at least one faulty current transformer is present, a corresponding alarm message will be generated. If there is no abnormal transformer, perform electricity theft analysis based on the total input power and the power consumed in each sub-region, and generate the corresponding electricity theft analysis results.

7. A processor, characterized in that, Used to run a program, wherein the program is run to perform the method of any one of claims 1-5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the method described in any one of claims 1-5.

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