CN109904925B - Power distribution station area user transformation relation checking method - Google Patents
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Abstract
The invention relates to a power distribution station area user change relation checking method, which is based on a power utilization information centralized reading system and carrier communication distance characteristics, establishes a virtual large station area by combining a power distribution network, establishes a user database and user information acquisition by adopting a 'menu type + broadcast type' combined centralized reading mode, and realizes 'quick, accurate and full' checking of real station area user change attribution by utilizing consistency comparison of electric degree data. The invention provides a new technical solution for realizing fast, accurate and complete distinguishing of the platform zone files without much, missing or wrong reports, reducing the later-stage manual labor intensity and improving the timeliness of platform zone identification and checking.
Description
Technical Field
The invention relates to the technical field of power distribution marketing, in particular to a power distribution station area user transformation relation checking method.
Background
Along with the continuous expansion of the scale of the power distribution network, the informatization and intelligentization construction of the power distribution network are more and more important to the interaction of the supply and demand information of the power market. At low voltage distribution side, the management of platform district that becomes more meticulous is carried out in a comprehensive way, not only can improve distribution network's intelligent level, can also realize joining in marriage net marketing lean in essence. The basis is to check user data and check whether the topological relation of the distribution area is abnormal, the user information is omitted or wrong and the like. A transformer area refers to the power supply range or area of a (single) transformer.
For a long time, due to the fact that the construction of a low-voltage power distribution network is often lack of scientific and perfect early-stage planning, a user topology network in a transformer area has no unified standard. Some cell networks are not erected according to rules, and only the purpose of powering on a user is taken, so that accurate topological information recording is lacked. In addition, the original information of the user files is mostly in a paper card mode, and then the electronic information system is manually input one by one, so that the situations of topology errors and omission of the user caused by input errors exist. In addition, in the operation process of the distribution network area, the client continuously increases and decreases the adjustment, and when the net rack for load cutting is adjusted, the information change is not timely, so that the user file is easy to update mistakenly, and the time is difficult to return, so that the problem that the verification of the topological relation of the distribution network area needs to be solved urgently in the power supply service is solved.
The topological relation of the transformer areas has important significance for power utilization information acquisition, and if the topology and the paths of the transformer areas are predicted in advance, the communication networking of the information acquisition can be standardized, unified and rationalized, so that the copying and reporting efficiency is more efficient. In the process of on-site maintenance, the accurate position of the meter in the platform area topology can be quickly positioned and analyzed according to the known meter, the workload of on-site workers is greatly reduced, the quick fault removal capability is improved, and the service efficiency and quality of a distribution network are improved. The conventional low-voltage transformer area general survey method is realized by means of pulling a gate in a transformer area for observation and manually recording user information in the transformer area, and cannot realize digital storage; in the aspect of topology identification of abnormal users in a distribution area, a power carrier distribution area identification instrument is used for field one-by-one detection according to distribution area user files, the workload is large, and the condition that users in the distribution area are omitted cannot be found.
Disclosure of Invention
The invention aims to provide a power distribution station area user transformation relation checking method, which is used for solving the problems of more station area files, missing and wrong reports and high later-stage manual labor intensity during power utilization information acquisition of users.
In order to achieve the purpose, the scheme of the invention is as follows: a power distribution station area user variable relationship checking method comprises the following steps:
(1) dividing the transformer area where all users possibly generating transformer area are located into a virtual transformer area according to the transmission characteristics and transmission distance of the power carrier;
(2) collecting the electricity utilization information of a user by adopting a centralized reading mode of a menu configuration type reading report;
(3) if cross-station-area acquisition of power consumption information occurs in the virtual station area, dividing adjacent station areas possibly subjected to cross-station-area acquisition of the power consumption information according to the actual station area position to be checked for the station area user variation relationship;
(4) marking suspicious users in a possible channel stringing area;
(5) checking the electricity consumption data of the suspicious users for a plurality of months, and if the electricity consumption data of the suspicious users are continuous and consistent, determining the suspicious users as the users in the platform cluster area;
(6) and further adopting a centralized reading mode of broadcast command type reading, checking whether a user meter with unregistered files appears, if so, judging the affiliation of the station area through multiple times of centralized reading and data comparison, updating and adjusting user file information, and perfecting the affiliation association relationship of the station area of the user.
Further, in the step (1), the virtual transformer area is all transformer areas in a circular area with the carrier communication transmission distance as a radius and with the actual transformer area position to be subjected to transformer area subscriber relationship checking as a center.
Further, in the step (2), the collected data information includes user name, user number, power consumption, meter number and user state.
Furthermore, the menu configuration type reading is to encode the ID address of the user according to the user profile information, establish a user menu for data acquisition, and perform the centralized reading of the power utilization information of the users on the menu list one by one.
Furthermore, the broadcast command type report reading is that a collection master station issues a broadcast type collection instruction, all users receiving the collection instruction upload data, a background master station compares the data with an original file, uploads the data after finding a meter which is not registered in a station area, determines the affiliation of the electric energy meter station area through the characteristics of a low-voltage power line, the corresponding relation between a carrier master node and a slave node and the analysis of big data, and adjusts the file according to the verification condition.
Further, in the step (4), the electricity consumption details of all users in the actual platform area and the adjacent platform area in the same month to be subjected to platform area user-to-variable relationship checking are selected, whether the electricity consumption is consistent is checked, and if yes, the electricity consumption is marked as a suspicious user who may have a platform area string.
Further, in the step (4), the station area within the electrical distance of 2km from the actual station area position to be subjected to station area user variation relation checking is selected as the adjacent station area.
Further, in the step (3), the total number of the collected users in all the areas in the virtual area is calculated, the original total number of the installed users is compared with the total number of the collected users in the virtual area, if the total numbers are consistent, it is indicated that no cross-area user exists, otherwise, it is indicated that a cross-area user exists.
Further, in the step (3), the total number of the collected users in all the cell areas in the cell area is calculated as:
b is the total number of collected users of all the transformer areas in the virtual transformer area obtained through calculation;
m is the number of repeated users of the electricity consumption;
bithe number of the users collected in the ith station area is collected.
Further, the checking method checks the number of users in each distribution area, and specifically includes:
(1) collecting all user collective reading data in the platform area within at least one year;
(2) the user number detail table is collected and copied by month statistics by utilizing a big data analysis technology, all user names recorded by copying are counted once, and the missing and the leakage are checked through iterative mapping of a plurality of months;
(3) and counting the number of the users obtained by final mapping, and forming a solidified platform area user name and user code sample.
The invention achieves the following beneficial effects: the invention is based on the power consumption information centralized meter reading system and the carrier communication distance characteristic, establishes a virtual large transformer area by combining a power distribution network, establishes a user database and user information acquisition by adopting a 'menu type + broadcast type' combined centralized meter reading mode, and realizes 'quick, accurate and full' check of the real transformer area user attribution by utilizing the consistency comparison of the electric degree data. The invention provides a new technical solution for realizing fast, accurate and complete distinguishing of the platform zone files without much, missing or wrong reports, reducing the later-stage manual labor intensity and improving the timeliness of platform zone identification and checking.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic diagram of virtual platform zone division according to the present invention;
FIG. 3 is a schematic diagram of a simulation bay of an embodiment of the present invention;
FIG. 4 is a schematic diagram of power consumption information acquisition for cross-cell communication according to an embodiment of the present invention;
fig. 5 is a diagram illustrating a checking result of the distribution room according to the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
The invention provides a power distribution station area user transformation relation checking method, which comprises the following steps:
1. power consumption information collection
The invention adopts a centralized meter reading system to collect the electric meter information of users in each district, and the working mode of the centralized meter reading system comprises the following steps: and broadcasting command type copying and menu configuration type copying. The invention adopts a mode of combining broadcast command type copying and menu configuration type copying.
And acquiring the electricity utilization information in a menu configuration type copying and reporting mode, wherein the acquired electricity utilization information comprises a user number, a user name, electricity consumption, a meter number, a user state and the like. The user file information is updated regularly in a broadcast command type copying mode so as to adapt to the change of the station area and the transfer of the station area and avoid file information errors.
The menu configuration type copying is to encode the ID address of the user according to the user file information, establish a copying user menu, and perform the centralized copying of the power consumption information one by one for the users on the copying user menu list, and the centralized copying mode is to copy the user according to the set user list, so that the copying efficiency is high, and the timeliness of data acquisition is good. However, the original archive information may have the situations of user missing and topological relation registration error, and the menu-type power consumption information centralized reading mode has the phenomena of user information acquisition missing, cross-station reading and the like. Moreover, the configuration menu of the centralized meter reading system is determined according to the archive information, and when the user moves, cuts a platform area or transforms a net rack, the user archive is not updated timely, the menu cannot be automatically checked and updated, and the user information acquisition fails.
The broadcasting command type reading and reporting is not provided with a fixed reading and reporting user menu, a collection master station issues a broadcasting type reading and reporting command to a station area, all users receiving the reading and reporting in the station area upload power consumption information data, a background master station compares the received power consumption information with an original file, if a meter which is not registered in the station area is found, the power consumption information is uploaded to a background in time, after a period of daily meter reading process, the station area attribution of an electric energy meter is determined through the low-voltage power line characteristic, the corresponding relation of a carrier master node (concentrator) and a slave node (carrier module) and the analysis of big data, and the file adjustment is carried out according to the verification condition.
2. Division of virtual platform zone area
Taking the actual station area position to be subjected to station area subscriber relationship checking as a center, dividing all users in a range where station area interference is likely to occur into a virtual station area (as shown in fig. 1) according to the transmission characteristics and the transmission distance of the power carrier, wherein the virtual station area is a circular area taking the actual station area position to be subjected to station area subscriber relationship checking as a center and the carrier communication transmission distance as a radius. The virtual platform area comprises a plurality of platform areas, and all users in each platform area are defined as subordinate users in the virtual platform area.
3. Tandem subscriber decision within virtual cell zone
(1) Counting the original user application total number A in the virtual platform area;
(2) computing virtual zonesNumber b of centralized meter reading users collected in each region in regioni(i ═ 1,2,3 … n), carry out big data washing with power consumption data, screening power consumption number of repeating users m, calculate the total number of users of all districts collection in the district region, promptly:
(3) and comparing the original equipment declaration total A with the virtual area station area collection user total B, if the original equipment declaration total A is consistent with the virtual area station area collection user total B, indicating that the station area is intact, and otherwise, indicating that the station area connection users exist.
4. Checking the number of users in a distribution room
Due to the fact that signal attenuation and interference exist in carrier communication, the situation that information collection of individual users fails exists in certain months. When the carrier communication is recovered or the equipment is overhauled, the electricity utilization information of the users can be collected again.
The invention carries out user name (user number) mapping on the collected user information by analyzing the centralized reading data of the power consumption information of a plurality of months in the station area where the user fails to acquire information, thereby accurately acquiring the total number of the users in the corresponding station area. The method comprises the following specific steps:
(1) collecting the electricity utilization information centralized reading data of all users in the past one year and more of the corresponding distribution area;
(2) the user number detail table is collected and copied by month statistics by utilizing a big data analysis technology, all user names recorded by copying are counted once, and the missing and the leakage are checked through iterative mapping of a plurality of months;
(3) and counting the number of the users obtained by final mapping, and solidifying the number into a sample of the user name and the user number of the platform area.
5. Checking topological relation of users in transformer area
Because the electrical connection distance between different areas in the virtual area is short, carrier cross-area communication can occur, and the situation that users cross the area can occur. In the same platform area, the electricity consumption of different users is not consistent for a plurality of months continuously, the electricity consumption information data can be used for big data analysis, and the condition of the platform area is analyzed by adopting electricity consistency check, and the specific steps are as follows;
(1) and dividing and screening the adjacent distribution areas possibly crossing the distribution areas according to the actual distribution area positions to be subjected to distribution area user variable relation checking. Since the transmission distance of carrier communication is generally 2km, the present embodiment selects a station area within an electrical distance of 2km from the actual station area position to be subjected to station area subscriber relationship verification as an adjacent station area;
(2) selecting the electricity consumption details of all users in the actual platform area and the adjacent platform area which are to be subjected to platform area user variation relation checking in the same month, checking whether the electricity consumption is consistent or not, and if so, marking the electricity consumption details as suspicious users;
(3) and further checking the electricity consumption data of the suspicious users for a plurality of months, if the electricity consumption data are consistent continuously, determining the suspicious users as the users in the serial station area, further distinguishing the station areas by using a 'menu type + broadcast type' combined centralized reading mode, and timely perfecting the station area attribution and file updating of the users.
Example (b):
as shown in fig. 3, in this embodiment, two simulation transformer areas are provided, in each transformer area, one transformer is selected as a cell transformer, a concentrator is installed at the secondary outlet of the transformer, and the power consumption information of all users in the transformer area is collected. And a collector is arranged below the concentrator and is connected to three users through a 485 bus.
Two transformer areas are established in the embodiment, and each transformer area selects three intelligent electric meters which are respectively connected with A, B, C three phases of the two transformer areas. Three smart meters with the meter numbers of 070120016276, 070120016131 and 070120016279 belong to the transformer area 1, and three smart meters with the meter numbers of 070120015861, 002002152963 and 070120015862 belong to the transformer area 2.
The file information (including table number, communication ID and affiliation platform area) of 070120016276, 070120016131 and 070120016279 is sent to concentrator 1, and the file information of 070120015861, 002002152963 and 070120015862 is sent to concentrator 2. And then, issuing a power utilization information acquisition instruction to the two concentrators through the background server.
The carrier signal often crosses the transformer between adjacent transformer districts, thereby causing the power consumption information to be transmitted in the transformer district, and the two 380V transformers are adjacently arranged in the embodiment. Then, the server issues a power consumption information collection command to the concentrator 2, and the collection result is as shown in fig. 4. It can be seen that, in addition to collecting the electricity consumption information of three electric energy meters under the station area, the concentrator 2 also collects the electricity meter information in the station area 1, and the phenomenon of cross-station collection of the electricity consumption information occurs.
For the cross-station acquisition phenomenon, firstly, the working mode of the centralized meter reading system is switched from the previous menu configuration mode to a broadcast command mode, and after a power utilization information acquisition instruction is issued to a user, all meters are autonomously searched and reported to a master station server. In the embodiment, data acquisition is carried out for 100 times, electric quantity consistency check is carried out by utilizing big data analysis, an analysis result shows that users in a station area cluster exist, the station area is further distinguished by utilizing the characteristic that different loads in different station areas cause different alternating current phase offsets, and a master reporting station server carries out file updating. The results are shown in FIG. 5. 070120015861, 002002152963 and 070120015862 three intelligent meters belong to the distribution area 2, and the other three intelligent meters are used as abnormal electric meters and uploaded to a server terminal to be checked and analyzed by background personnel.
Claims (9)
1. A power distribution station area user transformation relation checking method is characterized by comprising the following steps: the checking method comprises the following steps:
(1) dividing the transformer area where all users possibly generating transformer area are located into a virtual transformer area according to the transmission characteristics and transmission distance of the power carrier;
(2) collecting the electricity utilization information of a user by adopting a centralized reading mode of a menu configuration type reading report;
(3) if cross-station-area acquisition of power consumption information occurs in the virtual station area, dividing adjacent station areas possibly subjected to cross-station-area acquisition of the power consumption information according to the actual station area position to be checked for the station area user variation relationship;
(4) marking suspicious users in a possible channel stringing area;
(5) checking the electricity consumption data of the suspicious users for a plurality of months, and if the electricity consumption data of the suspicious users are continuous and consistent, determining the suspicious users as the users in the platform cluster area;
(6) further adopting a centralized reading mode of broadcast command type reading, checking whether a user meter with unregistered file appears, if so, carrying out station attribution judgment through multiple times of centralized reading and data comparison, updating and adjusting user file information, and perfecting the station affiliation association relationship of the user;
in the step (3), the total number of the collected users in all the distribution areas in the virtual distribution area is calculated as:
in the formula, B is the total number of collected users of all the distribution areas in the virtual distribution area obtained by calculation;
m is the number of repeated users of electricity consumption;
bithe number of the users collected in the ith station area is collected.
2. The distribution grid station relationship checking method according to claim 1, wherein in step (1), the virtual grid station area is all grid stations in a circular area with a radius of a carrier communication transmission distance, centered on an actual grid station position to be checked for grid station relationship.
3. The distribution substation area user transformation relation checking method according to claim 1, wherein in the step (2), the collected centralized data information includes a user name, a user number, power consumption, a meter number and a user state.
4. The power distribution station area user transformation relation checking method according to claim 1, wherein the menu configuration type copying is to encode an ID address of a user according to user profile information, establish a user menu for data acquisition, and copy power utilization information set by set for the user on the menu list one by one.
5. The power distribution station area user variation relation checking method according to claim 1, wherein the broadcast command type report reading is that a collection master station issues a broadcast type collection instruction, all users receiving the collection instruction upload data, a background master station compares the data with an original file, finds a meter which is not registered in a station area, uploads the data in time, determines the affiliation of an electric energy meter station area through the characteristics of a low-voltage power line, the corresponding relation between a carrier master node and a slave node and the analysis of big data, and adjusts the file according to the checking condition.
6. The distribution grid user-to-variable relationship checking method according to claim 1, characterized in that the power consumption details of all users in the actual grid and the adjacent grids to be checked for the grid user-to-variable relationship in the same month are selected, whether the power consumption is consistent is checked, and if yes, the power consumption is marked as a suspicious user who may have a grid crossing.
7. The distribution substation outdoor transformer relationship checking method according to claim 6, wherein a substation within an electrical distance of 2km from an actual substation position to be subjected to substation outdoor transformer relationship checking is selected as an adjacent substation.
8. The distribution substation user variation relationship checking method according to claim 1, wherein the total number of all substation collection users in the virtual substation area is calculated, the original installed application user total number is compared with the virtual substation area collection user total number, if the total numbers are consistent, it is indicated that no substation area user exists, otherwise, it is indicated that a substation area user exists.
9. The power distribution substation user variation relationship checking method according to claim 1, wherein the checking method checks the number of users in each substation, and specifically comprises:
(1) collecting all user collective reading data in the platform area within at least one year;
(2) the user number detail table is collected and copied by month statistics by utilizing a big data analysis technology, all user names recorded by copying are counted once, and the missing and the leakage are checked through iterative mapping of a plurality of months;
(3) and counting the number of the users obtained by final mapping, and forming a solidified platform area user name and user code sample.
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| CN110221160B (en) * | 2019-07-25 | 2021-03-26 | 云南电网有限责任公司电力科学研究院 | Method and device for determining family, transformer and phase relation |
| CN111245095A (en) * | 2020-01-16 | 2020-06-05 | 遵义贵华能源科技有限公司 | Topology identification method of low-voltage distribution network topology identification system |
| CN112201028B (en) * | 2020-08-27 | 2023-09-22 | 杭州华春科技有限公司 | Newly-built district acceptance device and management and control method |
| CN113033666B (en) * | 2021-03-26 | 2024-04-26 | 国网上海市电力公司 | Platform region user transformer identification method integrating collected service and load design rule |
| CN113392414B (en) * | 2021-05-27 | 2023-04-11 | 国网福建省电力有限公司营销服务中心 | Closed-loop checking method for household variable relationship of power station area based on station area identifier |
| CN114050657B (en) * | 2021-11-26 | 2023-06-27 | 北京市腾河智慧能源科技有限公司 | Method, system, equipment and storage medium for identifying topology of grid-connected photovoltaic cell |
| CN116436167B (en) * | 2023-06-12 | 2023-08-11 | 国网信息通信产业集团有限公司 | Topology identification system, method and device for distributed photovoltaic access area |
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