A low-voltage power distribution area identification method and system

Abstract

The application provides a low-voltage power distribution area identification method and system, searches for area concentrators close to each area concentrator, and establishes a close relationship between each other; determines the gray list users of each area concentrator based on the white list users of each area concentrator with a close relationship; determines the area concentrator to which each gray list user belongs according to the number of users communicating with each gray list user, and sets the gray list user as the white list user of the area concentrator to which the gray list user belongs, so that the sending device is not needed to be installed on the user side, the identification cost is greatly reduced, and the security is improved; the corresponding number of users is obtained through the A-area user gray list and the B-area user gray list, so that the identification efficiency and the identification accuracy are greatly improved; each user in the user gray list respectively communicates with all the users in the white list of the current area and the adjacent area users based on the power line carrier in turn, so that the user determination problem in the user gray list is solved, which is simple and easy to implement, and the time cost and the labor cost are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power automation, and in particular to a low-voltage distribution area identification method and system. BACKGROUND

[0002] With the rapid development of power grids, the number of power users continues to grow, and the scale and structure of low-voltage distribution networks are increasingly large and complex. The traditional extensive management mode is difficult to adapt to the development of the times, and lean management of distribution areas has become a trend. In the business management of low-voltage distribution networks, the electricity management department often needs to check user files to ensure the accuracy of the files and provide correct and accurate management data for marketing management, which includes user file ownership, network topology relationship, user equipment power phase and working phase sequence, etc. These data are the basic data to ensure the load balance of the distribution area, reduce the load imbalance loss, and ensure the correctness of the line loss of the distribution area, and are the basic elements to realize the construction of smart grids.

[0003] In order to facilitate management, the power company implements sub-district management for low-voltage distribution network users, and the power department needs to check the user's sub-district information frequently. In low-voltage distribution areas, the line of some old neighborhoods is complex, and due to the imperfection and untimely updating of the sub-district information, the user data of the sub-district is often inaccurate or even missing. In addition, due to the change of user wiring or line reconstruction for load balancing distribution, the user incoming line end and concentrator ownership record are not accurate, the relationship between the sub-district and the actual one is not consistent, and some electric energy meter reading fails, which not only affects the accurate calculation of the line loss of the sub-district, but also causes metering disputes between the power supply and the user, and has a certain negative impact on the social image of the power supply enterprise. Therefore, it is very important to effectively identify the relationship between the sub-district and the user under the condition of uninterrupted power supply.

[0004] In order to ensure the accuracy of the archives of the transformer area, firstly, the power supply relationship of the smart electric energy meter should be accurately identified. At present, the transformer household relationship identification method mainly includes manual identification and using special transformer area identification equipment identification. The manual identification mainly relies on the electric power personnel to the scene of the household to investigate the user transformer area attribution, that is, to confirm the equipment power supply relationship through the power-off detection method, or to manually investigate the fire line path to determine the transformer area attribute. This method has the defects of huge workload, inability to be applied to underground cables, time-consuming and low identification efficiency with the increasing of the electricity population. The special transformer area identification equipment identification mainly uses the special device based on the pulse current method and power line carrier communication technology to check. The pulse current method needs to install a current transformer and an identification terminal at the outgoing line end of the distribution transformer, and install a pulse current sending device at the user side (smart meter). The user side sends a pulse current signal, and the identification terminal receives the pulse current signal to complete the identification. This method has high test accuracy, but the function is single, the volume is large, and the use is not convenient, especially each meter side needs to install a sending device, the cost is high, and the safety is low. The power line carrier technology also needs to install a main carrier transceiver device at the outgoing line end of the distribution transformer, and install a sub-carrier transceiver device at the user side (smart meter). The main carrier device and the sub-carrier device complete the identification by establishing a communication connection to confirm the subordinate relationship. However, the carrier communication device needs to be installed additionally, the cost of installing the system for all users in the transformer area is high, the utilization rate is low, and due to the attenuation of the carrier signal, the communication success rate of the main carrier device and the sub-carrier device is often low, and the identification accuracy is generally less than 95%. Especially in the two and more distribution transformer power supply area, due to the cross transformer crosstalk of the carrier signal, the transformer area identification error occurs, and the accuracy is less than 85%. SUMMARY

[0005] In order to overcome the shortcomings of high cost, low safety, low identification efficiency and low accuracy in the prior art, the present application provides a low-voltage power distribution transformer area identification method, which comprises:

[0006] searching for the transformer concentrators near each transformer concentrator and establishing the near relationship between each two transformer concentrators;

[0007] determining the gray list users of each transformer concentrator based on the white list users of each transformer concentrator with the near relationship;

[0008] determining the transformer concentrator to which each gray list user belongs according to the number of users establishing communication with each gray list user, and setting the gray list user as the white list user of the transformer concentrator to which the gray list user belongs.

[0009] The searching for the transformer concentrators near each transformer concentrator and establishing the near relationship between each two transformer concentrators comprises:

[0010] each transformer concentrator receives the white list users of each transformer area issued by the main station;

[0011] Each area concentrator searches based on the white list users of each area concentrator and the respective adjacent area concentrator;

[0012] Each area concentrator receives the inter-network coordination feedback signals sent by the adjacent area concentrator searched;

[0013] Based on the inter-network coordination feedback signals, the two-by-two adjacent relationship is established.

[0014] The white list users of each area concentrator based on the white list users of the area concentrators with the adjacent relationship are used to determine the gray list users of each area concentrator, including:

[0015] The white list users of each area concentrator based on the white list users of the area concentrators with the adjacent relationship are used to determine the gray list users of each area concentrator, including:

[0016] The white list users of each area concentrator based on the white list users of the area concentrators with the adjacent relationship are used to determine the gray list users of each area concentrator, including:

[0017] The white list users of each area concentrator based on the white list users of the area concentrators with the adjacent relationship are used to determine the gray list users of each area concentrator, including:

[0018] Based on the white list users of each area concentrator, the white list users of the adjacent area concentrator and the gray list users of the adjacent area concentrator, the first user number of each gray list user of the adjacent area concentrator capable of establishing communication with the white list user of the area concentrator itself and the second user number of each gray list user of the adjacent area concentrator capable of establishing communication with the white list user of the adjacent area concentrator are counted;

[0019] The first user number and the second user number of each area concentrator are compared, if the first user number is greater than the second user number, it is determined that the gray list user of the adjacent area concentrator belongs to the area concentrator, otherwise it is determined that the gray list user of the adjacent area concentrator belongs to the adjacent area concentrator.

[0020] In another aspect, the application also provides a low-voltage power distribution area identification system, comprising:

[0021] The establishment module is used to search the area concentrators adjacent to each area concentrator and establish a two-by-two adjacent relationship;

[0022] The determination module is used to determine the gray list users of each area concentrator based on the white list users of each area concentrator with the adjacent relationship;

[0023] The identification module is configured to determine the cluster concentrator to which each grey list user belongs according to the number of users establishing communication with each grey list user, and set the grey list user as a white list user of the cluster concentrator to which the grey list user belongs.

[0024] The establishing module is specifically configured to:

[0025] Each cluster concentrator receives the white list users of each cluster area issued by the main station;

[0026] Each cluster concentrator searches the cluster concentrator adjacent to itself based on the white list users of each cluster area;

[0027] Each cluster concentrator receives the inter-network coordination feedback signal sent by the adjacent cluster concentrator searched;

[0028] The two-by-two adjacent relationship is established based on the inter-network coordination feedback signal.

[0029] The determination module is specifically configured to:

[0030] The white list users of each cluster concentrator with the adjacent relationship are exchanged with each other;

[0031] The white list users of each cluster concentrator itself are compared with the white list users of the adjacent cluster concentrator, and the white list users of the adjacent cluster concentrator that are also the white list users of each cluster concentrator itself are taken as the grey list users of the adjacent cluster concentrator.

[0032] The identification module is specifically configured to:

[0033] The first number of users that can establish communication with the white list users of each cluster concentrator itself and the second number of users that can establish communication with the white list users of the adjacent cluster concentrator are counted based on the white list users of each cluster concentrator itself, the white list users of the adjacent cluster concentrator and the grey list users of the adjacent cluster concentrator;

[0034] The first number of users and the second number of users of each cluster concentrator are compared, if the first number of users is greater than the second number of users, it is determined that the grey list users of the adjacent cluster concentrator belong to each cluster concentrator, otherwise it is determined that the grey list users of the adjacent cluster concentrator belong to the adjacent cluster concentrator.

[0035] The technical scheme provided by the application has the following beneficial effects:

[0036] The low-voltage power distribution area identification method provided by the application searches for area concentrators close to each area concentrator, establishes a close relationship between each other, determines the gray list users of each area concentrator based on the white list users of the area concentrators with the close relationship, and determines the area concentrator to which each gray list user belongs according to the number of users communicating with each gray list user, and sets the gray list user as the white list user of the area concentrator to which the gray list user belongs, so that the user side does not need to install a sending device, the identification cost is greatly reduced, the security is improved, the corresponding number of users is obtained through the gray list users of each area, and the identification efficiency and accuracy are greatly improved.

[0037] In the technical solution provided by the application, each gray list user of the area communicates with all the white list users in the area and the areas with the close relationship, so that the user judgment problem in the gray list users is solved, which is simple, easy to implement, saves time cost and labor cost, and the identification efficiency and accuracy are greatly improved.

[0038] In the technical solution provided by the application, the area concentrator and the area concentrators with the close relationship exchange the white list users, and then the gray list users of the area concentrator and the area concentrators with the close relationship are obtained, the determination process of the user gray list is simple, efficient and accurate, and a reliable foundation is provided for the identification of the low-voltage power distribution area.

[0039] In the technical solution provided by the application, the user does not need to increase a special sending device, the installation space and the personnel working hours are greatly reduced, and the operation safety is also reduced. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is a low-voltage power distribution area identification method block diagram in the embodiment of the application.

[0041] Figure 2 It is a detailed flow chart of the low-voltage power distribution area identification method in the embodiment of the application.

[0042] Figure 3 It is a low-voltage power distribution area structure diagram in the embodiment of the application.

[0043] Figure 4 It is a low-voltage power distribution area identification system structure diagram in the embodiment of the application. DETAILED DESCRIPTION

[0044] The application will be further described in detail below with reference to the drawings.

[0045] Embodiment 1

[0046] Embodiment 1 of the application provides a low-voltage power distribution area identification method, and the specific flow chart is as shown in Figure 1 The method comprises the following steps.

[0047] S101: search for the substation concentrators adjacent to each substation concentrator and establish the adjacent relationship between each other;

[0048] S102: determine the gray list users of each substation concentrator based on the white list users of each substation concentrator having the adjacent relationship;

[0049] S103: determine the substation concentrator to which each gray list user belongs according to the number of users establishing communication with each gray list user, and set the gray list user as the white list user of the substation concentrator to which the gray list user belongs.

[0050] The search for the substation concentrators adjacent to each substation concentrator and the establishment of the adjacent relationship between each other include:

[0051] Each substation concentrator receives the white list users of each substation distributed by the main station;

[0052] Each substation concentrator searches for the substation concentrators adjacent to each other based on the white list users of each substation;

[0053] Each substation concentrator receives the inter-network coordination feedback signal sent by the adjacent substation concentrator searched;

[0054] The adjacent relationship between each other is established based on the inter-network coordination feedback signal.

[0055] The determination of the gray list users of each substation concentrator based on the white list users of each substation concentrator having the adjacent relationship includes:

[0056] Each substation concentrator exchanges the white list users with each other based on the white list users of each substation concentrator having the adjacent relationship;

[0057] The white list users of each substation concentrator are compared with the white list users of the adjacent substation concentrator, and the white list users of the adjacent substation concentrator that are also the white list users of each substation concentrator are set as the gray list users of the adjacent substation concentrator.

[0058] The determination of the substation concentrator to which each gray list user belongs according to the number of users establishing communication with each gray list user, and the setting of the gray list user as the white list user of the substation concentrator to which the gray list user belongs include:

[0059] The first number of users that can establish communication with the white list users of each substation concentrator and the second number of users that can establish communication with the white list users of the adjacent substation concentrator are counted for each gray list user of the adjacent substation concentrator based on the white list users of each substation concentrator, the white list users of the adjacent substation concentrator and the gray list users of the adjacent substation concentrator;

[0060] The first user number and the second user number of each substation concentrator are compared, if the first user number is greater than the second user number, it is determined that the gray list user of the adjacent substation concentrator belongs to the substation concentrator, otherwise it is determined that the gray list user of the adjacent substation concentrator belongs to the adjacent substation concentrator.

[0061] The following takes A substation concentrator and B substation concentrator as an example to introduce the specific process of the low-voltage power distribution substation identification method provided by the embodiment of the application (as shown in the figure): Figure 2

[0062] The A substation concentrator and the B substation concentrator respectively receive the white list users of each substation issued by the main station, that is, the A substation concentrator receives the A substation white list users issued by the main station, and the B substation concentrator receives the B substation white list users issued by the main station;

[0063] The A substation concentrator searches the substation concentrator adjacent to the A substation concentrator based on the A substation white list users, that is, the A substation concentrator searches the B substation concentrator based on the A substation white list users, and at the same time, the B substation concentrator searches the substation concentrator adjacent to the B substation concentrator based on the B substation white list users, that is, the B substation concentrator searches the A substation concentrator based on the B substation white list users;

[0064] The A substation concentrator receives the inter-network coordination feedback signal from the adjacent substation concentrator, and at the same time, the B substation concentrator receives the inter-network coordination feedback signal from the adjacent substation concentrator, that is, the A substation concentrator receives the inter-network coordination feedback signal from the B substation concentrator, and at the same time, the B substation concentrator receives the inter-network coordination feedback signal from the A substation concentrator;

[0065] The A substation concentrator and the B substation concentrator establish the adjacent relationship of the A substation concentrator and the B substation concentrator based on the inter-network coordination feedback signal;

[0066] The A substation concentrator and the B substation concentrator exchange the white list users with each other, that is, the A substation concentrator gives the white list users of itself to the B substation concentrator, and the B substation concentrator gives the white list users of itself to the A substation concentrator;

[0067] The A substation concentrator compares the white list users of itself with the white list users of the adjacent B substation concentrator, and takes the white list users of itself and the white list users of the adjacent B substation concentrator as the gray list users of the B substation concentrator at the same time; and at the same time, the B substation concentrator compares the white list users of itself with the white list users of the adjacent A substation concentrator, and takes the white list users of itself and the white list users of the adjacent A substation concentrator as the gray list users of the A substation concentrator;

[0068] ​The A-area concentrator counts the first user number X1 that each grey list user of the B-area concentrator can establish communication with the white list user of the A-area concentrator itself and the second user number X2 that each grey list user of the B-area concentrator can establish communication with the white list user of the B-area concentrator based on the white list user of the A-area concentrator, the white list user of the B-area concentrator and the grey list user of the B-area concentrator; meanwhile, the B-area concentrator counts the first user number X3 that each grey list user of the A-area concentrator can establish communication with the white list user of the B-area concentrator itself and the second user number X4 that each grey list user of the A-area concentrator can establish communication with the white list user of the B-area concentrator based on the white list user of the A-area concentrator, the white list user of the B-area concentrator and the grey list user of the A-area concentrator;

[0069] The A-area concentrator compares X1 with X2, if X1 is greater than X2, it is determined that the grey list user of the B-area concentrator belongs to the A-area concentrator, otherwise it is determined that the grey list user of the B-area concentrator belongs to the B-area concentrator; meanwhile, the B-area concentrator compares X3 with X4, if X3 is greater than X4, it is determined that the grey list user of the A-area concentrator belongs to the B-area concentrator, otherwise it is determined that the grey list user of the A-area concentrator belongs to the A-area concentrator.

[0070] The main station is installed in a power company, responsible for managing the power information collection of all power users in the region (generally in administrative provinces or cities) and the distribution and update of user white list information, the concentrator (including the A-area concentrator and the B-area concentrator) is installed in the small area power transformer room, responsible for the data centralized collection of the users (i.e. user electricity meters) in the jurisdiction of the concentrator, and reports the collected data to the main station, the main station and the multiple concentrators are transmitted through 3G / 4G wireless public network or power optical fiber special network; the user electricity meter is installed in the resident user corridor electricity meter box, which is an intelligent electricity meter with a built-in PLC carrier communication module, and communicates with the concentrator with a built-in PLC module through PLC communication. The concentrator receives the white list address of the area intelligent electricity meter distributed by the main station, periodically polls the electricity energy data of the subordinate electricity meters, collects and stores and reports to the main station, and realizes the super meter.

[0071] Embodiment 2

[0072] Based on the same inventive concept, the embodiment 2 of the present application also provides a low-voltage power distribution area identification system, and a low-voltage power distribution area structure diagram is shown in Figure 3 Figure 3 ​In the specific implementation, the two station areas A and B of the 10kV feeder are adjacent station areas, the A station area concentrator has N user smart meters A1, A2, A3…An in the jurisdiction range, and the B station area concentrator has M user smart meters B1, B2, B3…Bm in the jurisdiction range. Due to the cross-station area crosstalk characteristic of the PLC signal, the user smart meter A1 in the A station area is registered in the B station area concentrator through cross-station area PLC communication; similarly, the user smart meter B1 in the B station area is registered in the A station area concentrator through cross-station area PLC communication. The A station area concentrator and the B station area concentrator may contain users of the opposite station area in the white list, and the station area user identification is erroneous and confused. Therefore, the A station area concentrator needs to determine the B station area user gray list based on the A station area user white list issued by the master station, and the B station area concentrator needs to determine the A station area user gray list based on the B station area user white list issued by the master station.

[0073] The low-voltage power distribution station area identification system provided in Embodiment 2 of the present application is as shown in FIG. 2, and specifically comprises: Figure 4

[0074] The establishing module is configured to establish a pairwise proximity relationship between each station area concentrator and a station area concentrator adjacent to the station area concentrator;

[0075] The determining module is configured to determine gray list users of each station area concentrator based on white list users of each station area concentrator having a proximity relationship;

[0076] The identifying module is configured to determine a station area concentrator to which each gray list user belongs according to a number of users establishing communication with each gray list user, and set the gray list user as a white list user of the station area concentrator to which the gray list user belongs.

[0077] The establishing module establishes a pairwise proximity relationship between each station area concentrator and a station area concentrator adjacent to the station area concentrator through searching by each station area concentrator, and the specific process is as follows:

[0078] Each station area concentrator receives white list users of each station area issued by the master station; specifically, the A station area concentrator and the B station area concentrator receive white list users of each station area issued by the master station, that is, the A station area concentrator receives A station area white list users issued by the master station, and the B station area concentrator receives B station area white list users issued by the master station;

[0079] Each station area concentrator searches a station area concentrator adjacent to itself based on white list users of each station area; specifically, the A station area concentrator searches a station area concentrator adjacent to the A station area concentrator based on A station area white list users, that is, the A station area concentrator searches the B station area concentrator based on A station area white list users, and simultaneously, the B station area concentrator searches a station area concentrator adjacent to the B station area concentrator based on B station area white list users, that is, the B station area concentrator searches the A station area concentrator based on B station area white list users;

[0080] ​Each area concentrator receives the inter-network coordination feedback signal sent by the searched adjacent area concentrator; specifically, the A area concentrator receives the inter-network coordination feedback signal from the adjacent area concentrator, and the B area concentrator receives the inter-network coordination feedback signal from the adjacent area concentrator, that is, the A area concentrator receives the inter-network coordination feedback signal from the B area concentrator, and the B area concentrator receives the inter-network coordination feedback signal from the A area concentrator;

[0081] The two-by-two adjacent relationship is established based on the inter-network coordination feedback signal; specifically, the A area concentrator and the B area concentrator establish the adjacent relationship between the A area concentrator and the B area concentrator based on the inter-network coordination feedback signal;

[0082] The specific process of determining the gray list users of each area concentrator based on the white list users of each area concentrator having the adjacent relationship is as follows:

[0083] The white list users of each area concentrator having the adjacent relationship are exchanged with each other; specifically, the A area concentrator and the B area concentrator exchange the white list users with each other, that is, the A area concentrator gives its own white list users to the B area concentrator, and the B area concentrator gives its own white list users to the A area concentrator;

[0084] The white list users of each area concentrator are compared with the white list users of the adjacent area concentrator, and the white list users of the adjacent area concentrator that are also the white list users of each area concentrator are taken as the gray list users of the adjacent area concentrator; specifically, the A area concentrator compares its own white list users with the white list users of the adjacent B area concentrator, and the white list users of the adjacent B area concentrator that are also the white list users of the A area concentrator are taken as the gray list users of the B area concentrator; at the same time, the B area concentrator compares its own white list users with the white list users of the adjacent A area concentrator, and the white list users of the adjacent A area concentrator that are also the white list users of the B area concentrator are taken as the gray list users of the A area concentrator;

[0085] The specific process of determining the area concentrator to which each gray list user belongs according to the number of users establishing communication with each gray list user and setting the white list user of the area concentrator is as follows:

[0086] The first user number of each grey list user of the adjacent area concentrator being able to establish communication with the white list user of the area concentrator itself and the second user number of each grey list user of the adjacent area concentrator being able to establish communication with the white list user of the adjacent area concentrator are counted based on the white list user of the area concentrator itself, the white list user of the adjacent area concentrator and the grey list user of the adjacent area concentrator; specifically, the first user number X1 of each grey list user of the B area concentrator being able to establish communication with the white list user of the A area concentrator itself and the second user number X2 of each grey list user of the B area concentrator being able to establish communication with the white list user of the B area concentrator are counted by the A area concentrator based on the white list user of the A area concentrator itself, the white list user of the B area concentrator and the grey list user of the B area concentrator; meanwhile, the first user number X3 of each grey list user of the A area concentrator being able to establish communication with the white list user of the B area concentrator itself and the second user number X4 of each grey list user of the A area concentrator being able to establish communication with the white list user of the B area concentrator are counted by the B area concentrator based on the white list user of the B area concentrator itself, the white list user of the A area concentrator and the grey list user of the A area concentrator.

[0087] The first user number and the second user number of each area concentrator are compared, if the first user number is greater than the second user number, it is determined that the grey list user of the adjacent area concentrator belongs to the area concentrator, otherwise it is determined that the grey list user of the adjacent area concentrator belongs to the adjacent area concentrator, specifically, X1 and X2 are compared by the A area concentrator, if X1 is greater than X2, it is determined that the grey list user of the B area concentrator belongs to the A area concentrator, otherwise it is determined that the grey list user of the B area concentrator belongs to the B area concentrator; meanwhile, X3 and X4 are compared by the B area concentrator, if X3 is greater than X4, it is determined that the grey list user of the A area concentrator belongs to the B area concentrator, otherwise it is determined that the grey list user of the A area concentrator belongs to the A area concentrator.

[0088] For ease of description, each part of the above device is described as various modules or units in function. Of course, the functions of each module or unit can be implemented in the same or multiple software or hardware in implementing the present application.

[0089] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system or a computer program product. Therefore, the present application can adopt a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present application can adopt a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

[0090] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart Figure 1 one or more flows and / or blocks. Figure 1 one or more flows and / or blocks.

[0091] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart Figure 1 one or more flows and / or blocks. Figure 1 one or more flows and / or blocks.

[0092] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart Figure 1 one or more flows and / or blocks. Figure 1 one or more flows and / or blocks.

[0093] Finally, it should be noted that the above-mentioned embodiments are merely used to illustrate the technical solutions of the present application but not to limit it, and the ordinary skilled in the art can still modify or equivalently replace the specific embodiments of the present application according to the above-mentioned embodiments, and any modification or equivalent replacement without departing from the spirit and scope of the present application shall be within the protection scope of the present application.

Claims

1. A low voltage distribution network identification method, characterized by, The method comprises the following steps: searching for the head-end concentrators adjacent to each head-end concentrator and establishing the adjacent relationship between each two head-end concentrators; determining the gray list users of each head-end concentrator based on the white list users of the head-end concentrators having the adjacent relationship; determining the head-end concentrator to which each gray list user belongs according to the number of users establishing communication with each gray list user, and setting the gray list user as the white list user of the head-end concentrator to which the gray list user belongs; the step of determining the head-end concentrator to which each gray list user belongs according to the number of users establishing communication with each gray list user, and setting the gray list user as the white list user of the head-end concentrator to which the gray list user belongs, comprises the following steps: based on the white list users of each head-end concentrator, the white list users of the adjacent head-end concentrators and the gray list users of the adjacent head-end concentrators, counting the first number of users that can establish communication between the white list users of each head-end concentrator and the gray list users of the adjacent head-end concentrators, and the second number of users that can establish communication between the white list users of the adjacent head-end concentrators and the gray list users of the adjacent head-end concentrators; comparing the first number of users with the second number of users of each head-end concentrator, if the first number of users is greater than the second number of users, determining that the gray list users of the adjacent head-end concentrators belong to the head-end concentrator, otherwise, determining that the gray list users of the adjacent head-end concentrators belong to the adjacent head-end concentrators.

2. The low-voltage distribution feeder identification method of claim 1, wherein, the step of searching for the head-end concentrators adjacent to each head-end concentrator and establishing the adjacent relationship between each two head-end concentrators, comprises the following steps: each head-end concentrator receives the white list users of each head-end concentrator sent by the main station; each head-end concentrator searches for the head-end concentrators adjacent to itself based on the white list users of each head-end concentrator; each head-end concentrator receives the interworking coordination feedback signal sent by the adjacent head-end concentrator searched by itself; the adjacent relationship between each two head-end concentrators is established based on the interworking coordination feedback signal.

3. The low-voltage distribution feeder identification method of claim 1, wherein, the step of determining the gray list users of each head-end concentrator based on the white list users of the head-end concentrators having the adjacent relationship, comprises the following steps: each head-end concentrator exchanges the white list users with the head-end concentrators having the adjacent relationship; each head-end concentrator compares the white list users of itself with the white list users of the adjacent head-end concentrators, and takes the white list users of both itself and the adjacent head-end concentrators as the gray list users of the adjacent head-end concentrators.

4. A low voltage distribution network identification system, characterized by The method comprises the following steps: a establishing module is configured to search for the head-end concentrators adjacent to each head-end concentrator and establish the adjacent relationship between each two head-end concentrators; a determining module is configured to determine the gray list users of each head-end concentrator based on the white list users of the head-end concentrators having the adjacent relationship; an identifying module is configured to determine the head-end concentrator to which each gray list user belongs according to the number of users establishing communication with each gray list user, and set the gray list user as the white list user of the head-end concentrator to which the gray list user belongs; the identifying module is specifically configured to: based on the white list users of each head-end concentrator, the white list users of the adjacent head-end concentrators and the gray list users of the adjacent head-end concentrators, count the first number of users that can establish communication between the white list users of each head-end concentrator and the gray list users of the adjacent head-end concentrators, and the second number of users that can establish communication between the white list users of the adjacent head-end concentrators and the gray list users of the adjacent head-end concentrators; The first user number and the second user number of each area concentrator are compared, if the first user number is greater than the second user number, it is determined that the gray list user of the adjacent area concentrator belongs to the area concentrator, otherwise it is determined that the gray list user of the adjacent area concentrator belongs to the adjacent area concentrator.

5. The low-voltage distribution feeder identification system of claim 4, wherein, The establishing module is specifically used for: Each area concentrator respectively receives the white list user of each area issued by the main station; Each area concentrator respectively searches the adjacent area concentrator based on the white list user of each area; Each area concentrator respectively receives the inter-network coordination feedback signal sent by the searched adjacent area concentrator; Based on the inter-network coordination feedback signal, the adjacent relationship between two area concentrators is established.

6. The low voltage distribution feeder identification system of claim 4, wherein, The determining module is specifically used for: Based on the white list user exchanged by each area concentrator with the adjacent relationship; The white list user of each area concentrator itself is compared with the white list user of the adjacent area concentrator, and the white list user of the adjacent area concentrator which is also the white list user of itself is taken as the gray list user of the adjacent area concentrator.

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