CN110806518B - Transformer area line loss abnormal motion analysis module and operation method thereof - Google Patents

Transformer area line loss abnormal motion analysis module and operation method thereof Download PDF

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Publication number
CN110806518B
CN110806518B CN201911002436.3A CN201911002436A CN110806518B CN 110806518 B CN110806518 B CN 110806518B CN 201911002436 A CN201911002436 A CN 201911002436A CN 110806518 B CN110806518 B CN 110806518B
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line loss
area
meter
line
power supply
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CN110806518A (en
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蒋意珏
廖永顺
唐毓
汪志飞
周晋辉
董恒
尹恒阳
李为杰
李明富
马恒驰
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Chengdu Power Supply Co Of State Grid Sichuan Electric Power Corp
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Chengdu Power Supply Co Of State Grid Sichuan Electric Power Corp
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/04Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current

Abstract

The invention discloses a transformer area line loss abnormal motion analysis module and an operation method thereof, relates to the technical field of power grid electricity utilization inspection, and comprises a line loss analysis unit, an abnormal motion analysis unit and an electricity meter management unit. The line loss analysis unit is used for analyzing the running conditions of the lines and equipment in a single area within the power supply range of the power supply station and warning abnormal running conditions; the abnormal change analysis unit is used for analyzing and displaying the line loss rate condition and the household meter electric quantity fluctuation condition of each area in the power supply range of the power supply station, and issuing a special electricity consumption measuring work order for the household meter electric quantity fluctuation condition judged to be abnormal; the electricity meter management unit is used for acquiring and managing the household meter information in each district within the power supply range of the power supply station, and providing a data basis for the line loss analysis unit to analyze the operation conditions of the circuits and the equipment in the districts. According to the invention, relevant data are obtained and imported into the module, and relevant conclusions are obtained through automatic analysis, so that sufficient time is gained for field abnormal meter inspection and platform area line modification, and reliable basis is rapidly and accurately provided for field work.

Description

Transformer area line loss abnormal motion analysis module and operation method thereof
Technical Field
The invention relates to the technical field of power grid electricity utilization inspection, in particular to a transformer area line loss abnormal motion analysis module and an operation method thereof.
Background
The line loss is an important economic and technical assessment index of the power grid, and comprehensively reflects the planning design, production operation and operation management level of the power grid. At present, the line loss of a transformer area occupies a large share of the bus loss, and is the most basic and important work content in line loss management, so that the requirements of power supply enterprises on field investigation and countermeasures of the line loss of the transformer area are urgent.
At present, the structure of power supply station personnel is aging seriously, and in the face of huge daily abnormal station data analysis amount of line loss, more Excel correlation functions need to be applied, which brings serious obstruction to line loss work and causes overlong data correlation and calculation and comparison time consumption. The personnel of power supply station consume long time to the artifical analysis of unusual meter, do not have reliable foundation to platform district line equipment operation, rectification, cause work efficiency low, be unfavorable for the management and control of platform district line loss day meticulous management.
Due to the fact that the data size to be analyzed in the transformer area is large, the time for obtaining results and arranging personnel to arrive at the site to complete electricity utilization inspection (including on-site inspection of customer meters, problem meter processing, electricity stealing behavior and the like) is long, and the situation that work on the same day cannot be completed is prone to being caused. Generally, the average time spent on manually operating each station area by a computer is about 20 minutes, if 15 abnormal station areas exist, the total time spent is about 5 hours, and the time spent on checking the power utilization of the staff is insufficient. Because district line loss is not fixed in which family or which district every day, if the staff can not accomplish the work of day, will influence the development of second day line loss work certainly, be unfavorable for daily management and control.
Disclosure of Invention
The invention aims to: in order to reduce complex microcomputer operation of workers and win sufficient time for field abnormal meter inspection and line modification of transformer areas, the transformer area line loss abnormal operation analysis module and the operation method thereof are provided. The design obtains related data in a remote acquisition system through a derivation function and guides the related data into the transformer area line loss abnormal motion analysis module, then the transformer area line loss abnormal motion analysis module automatically analyzes the data to obtain related conclusions, sufficient time is won for field abnormal meter inspection and transformer area line rectification, and reliable basis is quickly and accurately provided for field work.
The technical scheme adopted by the invention is as follows:
the utility model provides a platform district line loss abnormal motion analysis module, includes the login unit, still includes line loss analysis unit, abnormal motion analysis unit and electric meter management unit, wherein:
the line loss analysis unit is used for analyzing the running conditions of the lines and equipment in a single area within the power supply range of the power supply station and warning abnormal running conditions;
the abnormal motion analysis unit is used for analyzing and displaying the line loss rate condition of each area and the electric quantity fluctuation condition of the household meter in the power supply range of the power supply station;
and the electricity meter management unit is used for acquiring and managing the household meter information in each district within the power supply range of the power supply station and providing a data basis for the line loss analysis unit to analyze the operation conditions of the circuits and the equipment in the districts.
The operation method of the distribution room line loss transaction analysis module comprises a line loss management method and a technical line loss method, wherein the line loss management method comprises the following steps:
inputting login information into a platform area line loss transaction analysis module in a login unit;
acquiring daily accumulated line loss rate data of each station area in the power supply range of a power supply station by using a transaction analysis unit, and analyzing and displaying the line loss rate condition of each station area;
acquiring supply and output electricity quantity detail data A corresponding to qualified line loss of a distribution room and supply and output electricity quantity detail data B corresponding to abnormal line loss of the distribution room in a power supply range of a power supply station by using a transaction analysis unit, comparing the supply and output electricity quantity detail data A and the supply and output electricity quantity detail data B of the same distribution room to obtain and display the fluctuation condition of the electric quantity of a household meter of the distribution room, and issuing a special electricity consumption inspection work order for the abnormal fluctuation condition of the electric quantity of the household meter;
the technical line loss method comprises the following steps:
inputting login information into a platform area line loss transaction analysis module in a login unit;
according to the wiring condition of the field line of the transformer area, a transformer area line-equipment operation diagram is established by using a line loss analysis unit;
the line loss analysis unit is used for obtaining the detailed data of the power supply and output quantity of the distribution room in the power supply range of the power supply station, analyzing the running conditions of circuits and equipment in each distribution room, warning the problem circuits and equipment through a distribution room circuit-equipment running chart, and issuing the information to be rectified and modified of the circuits and the equipment according to the warning result.
Further, the VLOOKVP function is used for obtaining daily accumulated line loss rate data and supply-output electric quantity detail data of each distribution room from the power consumer power consumption information acquisition system, wherein the supply-output electric quantity detail data comprise supply-output electric quantity detail data a corresponding to qualified distribution room line loss and supply-output electric quantity detail data B corresponding to abnormal distribution room line loss.
Further, the specific method for acquiring daily accumulated line loss rate data of each district within the power supply range of the power supply station and analyzing the line loss rate condition of each district comprises the following steps: the daily accumulated line loss rate data derived from the power consumer electricity utilization information acquisition system is led into a transaction analysis unit, and the transaction analysis unit determines the line loss rate condition corresponding to each transformer area according to the daily accumulated line loss rate value of each transformer area based on the analysis standard of the line loss rate condition of each transformer area;
the daily accumulated line loss rate of the transformer area is the line loss rate value N of the transformer area, and the analysis standard of the line loss rate condition of each transformer area specifically comprises the following steps: if N is less than 0, alarm is given for negative line loss; if N is more than or equal to 0 and less than or equal to 7 percent, the product is qualified; if N is more than 7% and less than or equal to 9%, secondary early warning is performed; if N is more than 9% and less than or equal to 10%, the method belongs to first-level early warning; if N is more than 10%, the alarm belongs to positive line loss alarm; when N satisfies N < 0 or N > 10%, the line loss rate of the transformer area is abnormal, and when N satisfies 0-10%, the line loss rate of the transformer area is normal.
Further, a specific method for acquiring the supply-discharge electricity quantity detail data a and the supply-discharge electricity quantity detail data B of the distribution room in the power supply range of the power supply station by using the transaction analysis unit is as follows: determining a distribution area to be analyzed for the fluctuation condition of the electric quantity of the user meter, deriving the supply-output electric quantity detail data A and the supply-output electric quantity detail data B of the distribution area from an electric power user electricity consumption information acquisition system, and importing the supply-output electric quantity detail data A and the supply-output electric quantity detail data B into a transaction analysis unit, wherein the transaction analysis unit determines the fluctuation condition of the user meter electric quantity corresponding to the distribution area according to the supply-output electric quantity detail data A and the supply-output electric quantity detail data B of the distribution area to be analyzed based on the analysis standard of the fluctuation condition of the electric quantity of the user meter;
the fluctuation condition of the electric quantity of the household meter is judged according to the daily fluctuation rate P of the electric quantity of the household meter and the daily electric quantity, and the analysis standard is specifically as follows: if P is more than 30%, the fluctuation belongs to the first-level fluctuation; if P is more than 20% and less than or equal to 30%, the secondary fluctuation is achieved; if P is less than or equal to 20%, the result is normal; if the daily electric quantity exceeds 30KWh, the electric quantity is large; if the line loss rate of the transformer area is abnormal and the daily electric quantity is 0, the transformer area belongs to a 0-degree household; when the daily electric quantity fluctuation rate P does not meet that P is less than or equal to 20%, the electric quantity fluctuation of the household meter is abnormal, and the other conditions are normal.
Further, when the transaction analysis unit displays the line loss rate conditions of all the distribution areas within the power supply range of the power supply station, basic information A of each distribution area is also displayed, wherein the basic information A comprises the distribution area name, the distribution area code and the actual line loss of the distribution area;
and the abnormal motion analysis unit also displays basic information B of the distribution area when displaying the fluctuation condition of the electric quantity of the household meter in the distribution area within the power supply range of the power supply station, wherein the basic information B comprises a user name, a user code, a user household meter address, a CT value, a PT value, qualified electric quantity, abnormal electric quantity and abnormal writing time.
Further, the line loss analysis unit displays basic information C of the station area and functional operations which can be performed on the station area, wherein the functional operations include adding the station area, adding or modifying a line-device operation diagram of the station area, analyzing the operation conditions of lines and devices of the station area, modifying the basic information C of the station area, and deleting the station area and all information of the station area; the basic information C comprises a station area code, a station area name, a rated capacity and power supply duration, and the newly added station area is the basic information C of the added station area.
Further, the method for establishing the distribution room line-device operation diagram specifically comprises the following steps: drawing a line sketch of the transformer area on site, recording the type, length and erection mode of each electrified line on the line, and the table number, capacity and overlapping phase sequence of each household meter on the line; and according to the drawn table area line sketch, performing graph drawing and data entry by using a function of adding or modifying a table area line-equipment operating diagram.
Further, the method for analyzing the operation conditions of the lines and the equipment in the single area by the line loss analysis unit specifically comprises the following steps: acquiring detailed data of the supplied and output electricity quantity corresponding to the distribution area by using a line loss analysis unit, and determining the operation conditions of the circuits and the equipment in the distribution area based on a circuit and equipment operation state judgment method;
the method for judging the running state of the line and the equipment comprises the following steps: setting a load power consumption duration threshold of the distribution area based on the detail data of the supplied and output power of the distribution area, calculating the running current value of the distribution area, and determining the running conditions of the distribution area according to the running state judgment standard of the circuit and the equipment;
the line and equipment running state judgment standard specifically comprises the following steps: and judging whether the transformer area line exceeds the safe current-carrying capacity, whether the actual capacity of the transformer exceeds the rated capacity of the transformer and whether the actual capacity of the household meter exceeds the maximum capacity of the meter according to the running current value, if the transformer area line exceeds the safe current-carrying capacity or/and the actual capacity of the transformer exceeds the rated capacity of the transformer or/and the actual capacity of the household meter exceeds the maximum capacity of the meter, the transformer area line and the equipment run abnormally, otherwise, the transformer area line and the equipment run normally.
Furthermore, in the electricity meter management unit, the method for managing the user meter information in each area in the power supply range of the power supply station comprises the steps of newly adding the user meter information, checking the user meter information, modifying the user meter information and deleting one or more pieces of user meter information; the newly added meter information comprises a zone code, a zone name, a meter reading section number, a house name, a meter number, rated current, a voltage grade, a wiring mode, a phase sequence, power supply time, a meter model, a communication protocol, a trip mode, a meter type, a manufacturing unit and meter installing date;
the electricity meter management unit extracts corresponding power supply duration, rated current and phase sequence based on the meter number of the household meter, and the electricity meter management unit is used for the line loss analysis unit to diagnose the operation conditions of the household meter analysis platform area line and equipment.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, by analyzing the line loss abnormal points of each station area, a large amount of inspection time is won for the site work of the line loss of the station area, the analyzed abnormal points and problems are accurate, a good power supply and utilization order (such as the inspection of electricity stealing behaviors) is maintained, the power loss and the dispute of the power compensation quantity (such as a problem meter) is avoided, and an active role is played for ensuring the legal rights and interests of both power supply and utilization parties; meanwhile, a powerful basis is provided for operation maintenance and business expansion of the line and equipment in the transformer area, and guarantee is provided for economic and stable operation of the line and equipment in the transformer area.
2. In the invention, whether the platform region meets the newly added load or not and which phase of the three phases the load should be overlapped in are shown in a drilling mode from the assumed and expected modes. The newly added load can add graphs on a line-equipment running diagram of the platform area according to the requirements of users, daily electricity consumption is preset according to the applied capacity, the line-equipment running diagram of the platform area can display whether the newly connected users can cause overload operation and power supply range to exceed the standard or not and whether the three-phase load unbalance degree exceeds the standard or not, and the problems that the newly connected loads of the platform area have no connection basis, and the transformer, the line overload, the overload radius operation and the three-phase load serious unbalance are caused by blind connection of the loads are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of the overall structure of the module of the present invention;
FIG. 2 is a schematic diagram of a circuit-device diagram interface for adding or modifying a zone according to the present invention;
FIG. 3 is a schematic diagram of a line-device operation diagram interface of a distribution room when the operation conditions of the distribution room line and the device are abnormal according to the present invention;
FIG. 4 is a schematic diagram of a region information interface for screening alarms belonging to positive line loss in case one of the present invention;
FIG. 5 is a schematic diagram of a user information interface for screening out the first level of fluctuation in the first embodiment of the present invention;
fig. 6 is a schematic diagram of a line-equipment operation diagram interface of a platform area before line and equipment modification in case two of the present invention;
fig. 7 is a schematic diagram of a line-equipment operation diagram interface of a distribution room after line and equipment modification in case two of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Example one
The preferred embodiment of the present invention provides a distribution room line loss transaction analysis module and an operation method thereof, wherein the distribution room line loss transaction analysis module includes a login unit, a line loss analysis unit, a transaction analysis unit, and a meter management unit, wherein:
and the login unit is used for logging in and entering the transformer area line loss transaction analysis module by a worker.
And the line loss analysis unit is used for analyzing the running conditions of the lines and the equipment in the single area within the power supply range of the power supply station and warning the abnormal running conditions.
And the abnormal motion analysis unit is used for analyzing and displaying the line loss rate condition of each area and the electric quantity fluctuation condition of the household meter in the power supply range of the power supply station.
And the electricity meter management unit is used for acquiring and managing the household meter information in each district within the power supply range of the power supply station and providing a data basis for the line loss analysis unit to analyze the operation conditions of the circuits and the equipment in the districts.
It should be noted that "electric quantity" described in this technical solution refers to daily electric quantity, and aims to effectively perform daily management and control.
In this embodiment, the staff may log in the distribution room line loss transaction analysis module by filling in an account and a password, and the module obtains daily accumulated line loss rate data and supply-output electricity quantity detail data of each distribution room from the existing power consumer electricity consumption information collection system by using the VLOOKVP function, where the supply-output electricity quantity detail data includes supply-output electricity quantity detail data a corresponding to qualified distribution room line loss and supply-output electricity quantity detail data B corresponding to abnormal distribution room line loss.
(1) Electric meter management unit
The electric meter management unit is used for conveniently maintaining basic data of the related information of the household meters in the distribution area, namely, electric meter files of the SG186 marketing system are synchronized, and workers can partially modify the electric meter management unit according to the electric meter files of the SG186 marketing system and can also export and upload the electric meter files in the operation of the SG186 marketing system. The electricity meter management unit automatically extracts corresponding power supply time length, rated current and phase sequence through a meter number program of the household meter and enters the transformer area line loss abnormal motion analysis module, and the purpose of diagnosing whether the household meter runs in an excess capacity mode and the transformer area three-phase load balance degree is achieved.
In the electricity meter management unit, the method for managing the user meter information in each area within the power supply range of the power supply station comprises the steps of newly adding the user meter information, checking the user meter information, modifying the user meter information and deleting one or more pieces of user meter information. The newly added meter information comprises a station area code, a station area name, a meter reading section number, a house name, a meter number, rated current, a voltage grade, a wiring mode, a phase sequence, power supply time, a meter model, a communication protocol, a trip mode, a meter type, a manufacturing unit and meter installation date, and a worker can inquire the meter information through the station area name or/and the house name or/and the meter number.
The electricity meter management unit extracts corresponding power supply duration, rated current and phase sequence based on the meter number of the household meter, and the electricity meter management unit is used for the line loss analysis unit to diagnose the operation conditions of the household meter analysis platform area line and equipment.
(2) Line loss analysis unit
The line loss analysis unit is used for analyzing technical line loss, obtaining the electricity utilization current of a user by utilizing the electricity quantity of a user meter and a preset load electricity utilization time length threshold value, determining whether the user meter runs in an excess capacity mode, then superposing the electricity utilization current of the user by one node (namely one section of line of one section of line) to obtain the running current value of a transformer area, judging whether the line of the transformer area runs normally according to the running current value, and judging whether the line and equipment run in an excess load mode according to the type of a lead and the capacity of a transformer.
(3) Transaction analysis unit
The abnormal operation analysis unit is used for analyzing the management line loss, and the ratio of the reduction of the daily electric quantity of the user (namely the daily electric quantity fluctuation rate of the user meter) between the abnormal line loss of the distribution room and the normal line loss of the distribution room is used for searching an electric key inspection object, and when the daily electric quantity fluctuation rate of the user meter is too large, the user possibly has electric larceny behaviors and meter problems.
The operation method of the transformer area line loss transaction analysis module comprises a line loss management method and a technical line loss method, and specifically comprises the following steps:
method for managing line loss
And inputting login information into a platform area line loss transaction analysis module in a login unit.
The method comprises the following steps of acquiring daily accumulated line loss rate data of each area in a power supply range of a power supply station by using a transaction analysis unit, and analyzing and displaying the line loss rate condition of each area, wherein the specific method comprises the following steps: and importing daily accumulated line loss rate data derived from the power consumer electricity information acquisition system into a transaction analysis unit, wherein the transaction analysis unit determines the line loss rate condition corresponding to each transformer area according to the daily accumulated line loss rate value of each transformer area based on the analysis standard of the line loss rate condition of each transformer area.
The daily accumulated line loss rate of the transformer area is the line loss rate value N of the transformer area, and the analysis standard of the line loss rate condition of each transformer area specifically comprises the following steps: if N is less than 0, alarm is given for negative line loss; if N is more than or equal to 0 and less than or equal to 7 percent, the product is qualified; if N is more than 7% and less than or equal to 9%, secondary early warning is performed; if N is more than 9% and less than or equal to 10%, the method belongs to first-level early warning; if N is more than 10%, the alarm belongs to positive line loss alarm; when N satisfies N < 0 or N > 10%, the line loss rate of the transformer area is abnormal, and when N satisfies 0-10%, the line loss rate of the transformer area is normal.
The method comprises the steps that a supply-output electric quantity detail data A corresponding to qualified line loss of a power station area in a power supply range of a power supply station and supply-output electric quantity detail data B corresponding to abnormal line loss of the power station area are obtained by a transaction analysis unit, namely, an abnormal table of the power station area in the power supply range of the power supply station is obtained by the transaction analysis unit, the supply-output electric quantity detail when the line loss corresponding to the power station area is qualified is derived in an electric power user electricity utilization information acquisition system, the supply-output electric quantity detail data A and the supply-output electric quantity detail data B of the same power station area are compared, the fluctuation condition of the electric quantity of a user table of the power station area is obtained and displayed, and a worker can select the content displayed by the transaction analysis unit, for example, only the power station area which is judged to belong to the abnormal electric quantity fluctuation condition of the user table, and a special electricity consumption inspection work order is issued to the abnormal electric quantity fluctuation condition of the user table.
The specific method for acquiring the supply and discharge electricity quantity detail data A and the supply and discharge electricity quantity detail data B of the distribution room in the power supply range of the power supply station by using the transaction analysis unit comprises the following steps: determining a distribution area to be analyzed for the fluctuation condition of the electric quantity of the user meter, deriving the supply and output electric quantity detail data A and the supply and output electric quantity detail data B of the distribution area from the electric power user electricity consumption information acquisition system, and importing the supply and output electric quantity detail data A and the supply and output electric quantity detail data B into a transaction analysis unit, wherein the transaction analysis unit determines the fluctuation condition of the electric quantity of the user meter corresponding to the distribution area according to the supply and output electric quantity detail data A and the supply and output electric quantity detail data B of the distribution area to be analyzed based on the analysis standard of the fluctuation condition of the electric quantity of the user meter.
The fluctuation condition of the electric quantity of the household meter is judged according to the daily fluctuation rate P of the electric quantity of the household meter and the daily electric quantity, and the analysis standard is specifically as follows: if P is more than 30%, the fluctuation belongs to the first-level fluctuation; if P is more than 20% and less than or equal to 30%, the secondary fluctuation is achieved; if P is less than or equal to 20%, the result is normal; if the daily electric quantity exceeds 30KWh, the electric quantity is large; if the line loss rate of the transformer area is abnormal and the daily electric quantity is 0, the transformer area belongs to a 0-degree household; when the daily electric quantity fluctuation rate P does not meet that P is less than or equal to 20%, the electric quantity fluctuation of the household meter is abnormal, and the other conditions are normal; wherein, the daily electric quantity fluctuation rate of the user meter specifically refers to the ratio of the daily electric quantity reduction of the user when the line loss of the station area is abnormal and the line loss is normal, and the calculation mode is as follows: daily electric quantity of the household meter when line loss of the transformer area is normal, daily electric quantity of the household meter when line loss of the transformer area is abnormal, and daily electric quantity of the household meter when line loss of the transformer area is normal.
When the abnormal motion analysis unit displays the line loss rate conditions of all the distribution areas within the power supply range of the power supply station, basic information A of each distribution area is also displayed, wherein the basic information A comprises the name of the distribution area, the code of the distribution area and the actual line loss of the distribution area; when the fluctuation condition of the household meter electric quantity of the distribution area in the power supply range of the power supply station is displayed, basic information B of the distribution area is also displayed, wherein the basic information B comprises a user name, a user code, a user household meter address, a CT value, a PT value, qualified electric quantity, abnormal electric quantity and abnormal writing time.
Line loss method of (II) technology
The line loss analysis unit displays basic information C of the transformer area and functional operation which can be performed on the transformer area, wherein the functional operation comprises the steps of increasing the transformer area, increasing or modifying a transformer area line-equipment operating diagram, analyzing transformer area lines and equipment operating conditions, modifying transformer area basic information C, deleting the transformer area and all information of the transformer area, and inquiring the transformer area line loss analysis conditions. The basic information C comprises a station area code, a station area name, rated capacity and power supply duration, the newly added station area is the station area basic information C, and a worker can inquire the line loss analysis condition of the specified station area by inputting the station area code or the station area name.
And inputting login information into a platform area line loss transaction analysis module in a login unit.
And establishing a transformer area line-equipment operating diagram by using the line loss analysis unit according to the wiring condition of the transformer area field line.
The method for establishing the line-equipment operation diagram of the transformer area specifically comprises the following steps: drawing a line sketch of the transformer area on site, recording the type, length and erection mode of each electrified line on the line, and the table number, capacity and overlapping phase sequence of each household meter on the line; according to the drawn table area line sketch, the function of adding or modifying the table area line-equipment operation diagram is utilized to carry out graphic drawing and data entry, as shown in fig. 2. When the wiring condition of the platform area is abnormal, the platform area line-equipment operation diagram is modified by utilizing the function of adding or modifying the platform area line-equipment operation diagram, as shown in fig. 2, the line equipment to be modified is clicked on the graph on the right side of the interface, the data of relevant selection or a modifiable table can be popped up in the left side of the interface, and the modified table is stored after the modification is completed. For example, when a line or a device is added, the line must be clicked and dragged from the power supply side to the next node, i.e., the line is drawn according to the principle of current direction.
The line loss analysis unit is used for obtaining the detailed data of the power supply and output quantity of the distribution room in the power supply range of the power supply station, analyzing the running conditions of circuits and equipment in each distribution room, warning the problem circuits and equipment through a distribution room circuit-equipment running chart, and issuing the information to be rectified and modified of the circuits and the equipment according to the warning result.
The method for analyzing the operation conditions of the circuits and the equipment in the single area specifically comprises the following steps: and acquiring detailed data of the supplied and output electricity quantity corresponding to the distribution area by using a line loss analysis unit, and determining the operation conditions of the circuits and the equipment in the distribution area based on a circuit and equipment operation state judgment method. The method for judging the running state of the line and the equipment comprises the following steps: setting a load power consumption duration threshold of the distribution area based on the detail data of the supplied and output power of the distribution area, calculating the running current value of the distribution area, and determining the running conditions of the distribution area according to the judgment standard of the running states of the circuits and the equipment.
The setting method of the load power consumption duration threshold comprises two methods: (1) acquiring a power utilization oscillogram by using an 'equipment (asset) operation and maintenance lean management system' (PMS for short) in a national power grid unified authority management platform, acquiring power utilization duration of a transformer area through the power utilization oscillogram, setting comprehensive duration (namely a load power utilization duration threshold) of a user meter in the transformer area according to the power utilization duration of the transformer area, solving line current through an electric quantity calculation formula based on total electric quantity of the transformer area, comparing the obtained line current with current displayed in the PMS, and if the two numerical values are identical, indicating that the set load power utilization duration threshold is feasible; (2) through investigation platform district user work and rest time, know user power consumption duration in order to set for load power consumption duration threshold value, simultaneously, also can set up alone special user power consumption duration.
The operating current of the transformer area is calculated through the relationship between the daily electric quantity of the household meter and the electricity consumption time of the user, and the calculating mode of the operating current is as follows: and I is an operating current value, W represents daily electricity of the user meter, U represents voltage, t represents electricity utilization duration of the user, and Q represents a power factor. In the method, the safe current-carrying capacity of the line is calculated by referring to the running standard of the national grid power line, namely the capacity of the transformer is calculated according to the rated capacity, the capacity of the meter is calculated according to the maximum capacity, the unbalance degree of the three phases is calculated according to the value less than or equal to 15%, and the power supply radius is calculated according to the value less than or equal to 500 m.
The line and equipment running state judgment standard specifically comprises the following steps: and judging whether the transformer area line exceeds the safe current-carrying capacity, whether the actual capacity of the transformer exceeds the rated capacity of the transformer and whether the actual capacity of the household meter exceeds the maximum capacity of the meter according to the running current value, if the transformer area line exceeds the safe current-carrying capacity or/and the actual capacity of the transformer exceeds the rated capacity of the transformer or/and the actual capacity of the household meter exceeds the maximum capacity of the meter, the transformer area line and the equipment run abnormally, otherwise, the transformer area line and the equipment run normally.
The staff can check the line and equipment running condition corresponding to the distribution room by analyzing the distribution room line and equipment running condition function, when the distribution room line and equipment running condition is judged to be abnormal, the abnormal line or/and equipment is prompted on the distribution room line-equipment running diagram in a dark background and flashing mode, and the color and the state of the normal line and equipment are not changed, as shown in fig. 3. Meanwhile, in the table area line-equipment operation diagram, each section of line and each piece of equipment (such as a household meter and a transformer) are explained in a text prompting mode.
The invention is explained by the specific embodiment with the attached drawings.
Case one: alarm for positive line loss in spot 9 in 15 days 1 month in 2019
First, a "positive line loss alarm" is screened out according to the daily cumulative line loss rate analysis result analyzed by the transaction analysis unit, as shown in fig. 4. Next, the user electricity quantity fluctuation comparison analysis result is performed by clicking the checking place 9, and a 'primary fluctuation' is screened out, as shown in fig. 5. Then, the staff is informed and arranged to measure the special electricity utilization inspection on site through WeChat. Through on-site electricity utilization inspection, electricity stealing behavior of a certain Tang is found, after electricity stealing is detected, the electricity stealing behavior is inquired through an electricity utilization information acquisition system of an electricity consumer, the line loss of the distribution area is recovered to be normal, and the electricity quantity of the consumer is recovered to be normal.
Case two: 27 th month 5 in 2019, abnormal operation of lines and equipment occurs at the site A
First, the line and device operation conditions of the distribution room are checked from the distribution room line-device operation diagram in the line loss analysis unit, and abnormal lines and devices are prompted on the distribution room line-device operation diagram in a red flashing manner, as shown in fig. 6. Then, the staff is informed and arranged by WeChat to modify the line and equipment of the transformer area, and after modification, the operation of the line and equipment of the transformer area is as shown in FIG. 7.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. An operation method of a transformer area line loss abnormal motion analysis module comprises a login unit, a line loss analysis unit, an abnormal motion analysis unit and an electricity meter management unit, wherein: the line loss analysis unit is used for analyzing the running conditions of the lines and equipment in a single area within the power supply range of the power supply station and warning abnormal running conditions; the abnormal motion analysis unit is used for analyzing and displaying the line loss rate condition of each area and the electric quantity fluctuation condition of the household meter in the power supply range of the power supply station; the electricity meter management unit is used for acquiring and managing the household meter information in each district within the power supply range of the power supply station and providing a data basis for the line loss analysis unit to analyze the operation conditions of the district lines and the equipment;
the operating method comprises a line loss management method and a technical line loss method, wherein the line loss management method comprises the following steps:
inputting login information into a platform area line loss transaction analysis module in a login unit;
acquiring daily accumulated line loss rate data of each station area in the power supply range of a power supply station by using a transaction analysis unit, and analyzing and displaying the line loss rate condition of each station area;
acquiring supply and output electricity quantity detail data A corresponding to qualified line loss of a distribution room and supply and output electricity quantity detail data B corresponding to abnormal line loss of the distribution room in a power supply range of a power supply station by using a transaction analysis unit, comparing the supply and output electricity quantity detail data A and the supply and output electricity quantity detail data B of the same distribution room to obtain and display the fluctuation condition of the electric quantity of a household meter of the distribution room, and issuing a special electricity consumption inspection work order for the abnormal fluctuation condition of the electric quantity of the household meter;
the technical line loss method comprises the following steps:
inputting login information into a platform area line loss transaction analysis module in a login unit;
according to the wiring condition of the field line of the transformer area, a transformer area line-equipment operation diagram is established by using a line loss analysis unit;
the line loss analysis unit is used for obtaining the detailed data of the power supply and output quantity of the distribution room in the power supply range of the power supply station, analyzing the running conditions of circuits and equipment in each distribution room, warning the problem circuits and equipment through a distribution room circuit-equipment running chart, and issuing the information to be rectified and modified of the circuits and the equipment according to the warning result.
2. The operating method of the distribution room line loss transaction analysis module according to claim 1, wherein a VLOOKVP function is used to obtain daily cumulative line loss rate data and supply-output electricity quantity detail data of each distribution room from the power consumer electricity consumption information collection system, and the supply-output electricity quantity detail data includes supply-output electricity quantity detail data a corresponding to qualified distribution room line loss and supply-output electricity quantity detail data B corresponding to abnormal distribution room line loss.
3. The operating method of the distribution room line loss transaction analysis module according to claim 2, wherein the specific method of obtaining daily accumulated line loss rate data of each distribution room in the power supply range of the power supply station and analyzing the line loss rate condition of each distribution room is as follows: the daily accumulated line loss rate data derived from the power consumer electricity utilization information acquisition system is led into a transaction analysis unit, and the transaction analysis unit determines the line loss rate condition corresponding to each transformer area according to the daily accumulated line loss rate value of each transformer area based on the analysis standard of the line loss rate condition of each transformer area;
the daily accumulated line loss rate of the transformer area is the line loss rate value N of the transformer area, and the analysis standard of the line loss rate condition of each transformer area specifically comprises the following steps: if N is less than 0, alarm is given for negative line loss; if N is more than or equal to 0 and less than or equal to 7 percent, the product is qualified; if N is more than 7% and less than or equal to 9%, secondary early warning is performed; if N is more than 9% and less than or equal to 10%, the method belongs to first-level early warning; if N is more than 10%, the alarm belongs to positive line loss alarm; when N satisfies N < 0 or N > 10%, the line loss rate of the transformer area is abnormal, and when N satisfies 0-10%, the line loss rate of the transformer area is normal.
4. The operating method of the distribution room line loss abnormal operation analyzing module according to claim 2, wherein the specific method for obtaining the supply and discharge capacity detail data a and the supply and discharge capacity detail data B of the distribution room within the power supply range of the power supply station by using the abnormal operation analyzing unit comprises the following steps: determining a distribution area to be analyzed for the fluctuation condition of the electric quantity of the user meter, deriving the supply-output electric quantity detail data A and the supply-output electric quantity detail data B of the distribution area from an electric power user electricity consumption information acquisition system, and importing the supply-output electric quantity detail data A and the supply-output electric quantity detail data B into a transaction analysis unit, wherein the transaction analysis unit determines the fluctuation condition of the user meter electric quantity corresponding to the distribution area according to the supply-output electric quantity detail data A and the supply-output electric quantity detail data B of the distribution area to be analyzed based on the analysis standard of the fluctuation condition of the electric quantity of the user meter;
the fluctuation condition of the electric quantity of the household meter is judged according to the daily fluctuation rate P of the electric quantity of the household meter and the daily electric quantity, and the analysis standard is specifically as follows: if P is more than 30%, the fluctuation belongs to the first-level fluctuation; if P is more than 20% and less than or equal to 30%, the secondary fluctuation is achieved; if P is less than or equal to 20%, the result is normal; if the daily electric quantity exceeds 30KWh, the electric quantity is large; if the line loss rate of the transformer area is abnormal and the daily electric quantity is 0, the transformer area belongs to a 0-degree household; when the daily electric quantity fluctuation rate P does not meet that P is less than or equal to 20%, the electric quantity fluctuation of the household meter is abnormal, and the other conditions are normal.
5. The operating method of the distribution room line loss abnormal operation analyzing module according to claim 1, wherein when the abnormal operation analyzing unit displays the line loss rate of all distribution rooms in the power supply range of the power supply station, the abnormal operation analyzing unit further displays basic information a of each distribution room, wherein the basic information a includes a distribution room name, a distribution room code and an actual line loss of the distribution room;
and the abnormal motion analysis unit also displays basic information B of the distribution area when displaying the fluctuation condition of the electric quantity of the household meter in the distribution area within the power supply range of the power supply station, wherein the basic information B comprises a user name, a user code, a user household meter address, a CT value, a PT value, qualified electric quantity, abnormal electric quantity and abnormal writing time.
6. The operating method of the distribution room line loss transaction analyzing module according to claim 1, wherein the line loss analyzing unit displays basic information C of the distribution room and functional operations that can be performed on the distribution room, and the functional operations include adding the distribution room, adding or modifying a distribution room line-device operation diagram, analyzing distribution room line and device operation conditions, modifying the distribution room basic information C, and deleting the distribution room and all information of the distribution room; the basic information C comprises a station area code, a station area name, a rated capacity and power supply duration, and the newly added station area is the basic information C of the added station area.
7. The operating method of the distribution room line loss transaction analysis module according to claim 6, wherein the method for establishing the distribution room line-device operation diagram specifically comprises: drawing a line sketch of the transformer area on site, recording the type, length and erection mode of each electrified line on the line, and the table number, capacity and overlapping phase sequence of each household meter on the line; and according to the drawn table area line sketch, performing graph drawing and data entry by using a function of adding or modifying a table area line-equipment operating diagram.
8. The operating method of the distribution room line loss fluctuation analysis module according to claim 1 or 6, wherein the method for analyzing the operation conditions of the single distribution room line and the equipment by the line loss analysis unit specifically comprises: acquiring detailed data of the supplied and output electricity quantity corresponding to the distribution area by using a line loss analysis unit, and determining the operation conditions of the circuits and the equipment in the distribution area based on a circuit and equipment operation state judgment method;
the method for judging the running state of the line and the equipment comprises the following steps: setting a load power consumption duration threshold of the distribution area based on the detail data of the supplied and output power of the distribution area, calculating the running current value of the distribution area, and determining the running conditions of the distribution area according to the running state judgment standard of the circuit and the equipment;
the line and equipment running state judgment standard specifically comprises the following steps: and judging whether the transformer area line exceeds the safe current-carrying capacity, whether the actual capacity of the transformer exceeds the rated capacity of the transformer and whether the actual capacity of the household meter exceeds the maximum capacity of the meter according to the running current value, if the transformer area line exceeds the safe current-carrying capacity or/and the actual capacity of the transformer exceeds the rated capacity of the transformer or/and the actual capacity of the household meter exceeds the maximum capacity of the meter, the transformer area line and the equipment run abnormally, otherwise, the transformer area line and the equipment run normally.
9. The operating method of the distribution room line loss transaction analysis module according to claim 1, wherein in the electricity meter management unit, the method for managing the user meter information in each distribution room in the power supply range of the power supply station comprises newly adding the user meter information, checking the user meter information, modifying the user meter information, and deleting one or more pieces of user meter information; the newly added meter information comprises a zone code, a zone name, a meter reading section number, a house name, a meter number, rated current, a voltage grade, a wiring mode, a phase sequence, power supply time, a meter model, a communication protocol, a trip mode, a meter type, a manufacturing unit and meter installing date;
the electricity meter management unit extracts corresponding power supply duration, rated current and phase sequence based on the meter number of the household meter, and the electricity meter management unit is used for the line loss analysis unit to diagnose the operation conditions of the household meter analysis platform area line and equipment.
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111521966B (en) * 2020-05-18 2022-06-28 深圳市瀚邦为电子材料有限公司 Method and device for monitoring time out-of-tolerance of district electric meter, monitoring terminal and storage medium
CN111579928B (en) * 2020-05-25 2022-03-15 国网江苏省电力有限公司无锡供电分公司 Distribution line loss analysis method and analysis device
CN111831695B (en) * 2020-07-10 2023-09-08 四川明星电力股份有限公司 Query system and method for line loss information of transformer area
CN112014668A (en) * 2020-08-24 2020-12-01 苏州苏彭志盛信息科技有限公司 Method for managing line loss of medium-voltage line and low-voltage transformer area of distribution network
CN112485551A (en) * 2020-09-28 2021-03-12 国网山东省电力公司冠县供电公司 Line loss monitoring system and method
CN112884228B (en) * 2021-02-25 2022-07-29 国网山东省电力公司胶州市供电公司 Big data-based transformer area line loss management and control system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103473602A (en) * 2013-08-20 2013-12-25 国家电网公司 Theoretical line loss data prediction system and prediction method of power grid
CN107024641A (en) * 2017-03-29 2017-08-08 国网上海市电力公司 A kind of platform area line loss per unit exception monitoring system
CN107831379A (en) * 2017-09-14 2018-03-23 国家电网公司 Judge the abnormal method of line loss based on collection electricity unusual fluctuations
CN109256866A (en) * 2018-11-19 2019-01-22 国网四川省电力公司成都供电公司 The detection terminal of lifter board area topology recognition efficiency and line loss precision
CN109447329A (en) * 2018-10-11 2019-03-08 国网上海市电力公司 A kind of platform area Controlling line loss platform based on line loss early warning analysis model
CN109636124A (en) * 2018-11-18 2019-04-16 韩霞 Power industry low-voltage platform area line loss analyzing method and processing system based on big data

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9013173B2 (en) * 2010-09-13 2015-04-21 Trilliant Networks, Inc. Process for detecting energy theft

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103473602A (en) * 2013-08-20 2013-12-25 国家电网公司 Theoretical line loss data prediction system and prediction method of power grid
CN107024641A (en) * 2017-03-29 2017-08-08 国网上海市电力公司 A kind of platform area line loss per unit exception monitoring system
CN107831379A (en) * 2017-09-14 2018-03-23 国家电网公司 Judge the abnormal method of line loss based on collection electricity unusual fluctuations
CN109447329A (en) * 2018-10-11 2019-03-08 国网上海市电力公司 A kind of platform area Controlling line loss platform based on line loss early warning analysis model
CN109636124A (en) * 2018-11-18 2019-04-16 韩霞 Power industry low-voltage platform area line loss analyzing method and processing system based on big data
CN109256866A (en) * 2018-11-19 2019-01-22 国网四川省电力公司成都供电公司 The detection terminal of lifter board area topology recognition efficiency and line loss precision

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
基于用电信息采集系统的台区线损分析平台设计与开发;赵昭;《中国优秀硕士学位论文全文数据库 工程科技II辑》;20190115;第5章 *

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