CN114236283B - Method and device for determining line loss reason of power supply network - Google Patents
Method and device for determining line loss reason of power supply network Download PDFInfo
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- CN114236283B CN114236283B CN202111538740.7A CN202111538740A CN114236283B CN 114236283 B CN114236283 B CN 114236283B CN 202111538740 A CN202111538740 A CN 202111538740A CN 114236283 B CN114236283 B CN 114236283B
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- G—PHYSICS
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Abstract
The embodiment of the invention discloses a method and a device for determining a line loss reason of a power supply network. The method for determining the line loss cause of the power supply network comprises the following steps: checking the meter reading data of the station area to be checked, the user change relation, the station area checking list and the metering device in sequence; when the checking result meets the set requirement, acquiring user voltage and current data, user three-phase imbalance values, fitting degree of a user power consumption trend and a line loss trend, user heavy overload and user power consumption trend data of a to-be-checked platform area; and determining the line loss reason according to the user voltage and current data of the to-be-checked area, the user three-phase unbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy overload and the user power consumption trend data. Compared with the prior art, the embodiment of the invention solves the problems of low efficiency, poor reliability, strong manual intervention, one-sided analysis and the like in determining the line loss cause of the power supply network, improves the accuracy of line loss analysis, and further improves the level of line loss management and control of the transformer area.
Description
Technical Field
The embodiment of the invention relates to the technical field of power supply, in particular to a method and a device for determining line loss reasons of a power supply network.
Background
The line loss of the power supply network is an important economic index of the national assessment power department, is also the comprehensive reflection of the design level, the production technology level and the operation management level of the power system, and has very important significance for improving the energy conservation and the economic benefit of power enterprises. The electricity larceny, electric leakage, meter error and meter reading all cause fluctuation of line loss of a power supply network, and the electricity larceny phenomenon is a very concerned problem of power enterprises for a long time, so that the electricity larceny not only causes serious loss of national property and influences the economic benefit of the power enterprises, but also brings a series of potential safety hazards and social problems, and the damage is huge. The problems of low efficiency, poor reliability, strong manual intervention, one-sided analysis and the like exist in the current line loss reason determination.
Disclosure of Invention
The invention provides a method and a device for determining the line loss reason of a power supply network, which are used for solving the problems of low efficiency, poor reliability, strong manual intervention, one-sided analysis and the like in the determination of the line loss reason of the power supply network, improving the accuracy of line loss analysis and realizing the improvement of the line loss management and control level of a transformer area.
In a first aspect, an embodiment of the present invention provides a method for determining a cause of line loss in a power supply network, where the method includes:
checking the meter reading data of the station area to be checked, the user change relation, the station area checking list and the metering device in sequence;
when the checking result meets the set requirement, acquiring user voltage and current data, user three-phase imbalance values, fitting degree of user power consumption trend and line loss trend, user heavy overload and user power consumption trend data of the to-be-checked area;
and determining the line loss reason according to the user voltage and current data of the to-be-checked area, the user three-phase unbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy load and the user power consumption trend data.
Optionally, checking the meter reading data of the area to be checked includes:
checking whether the electricity selling quantity and the electricity supplying quantity are synchronous;
checking whether the misplacement reading and missed reading exist;
checking whether electric quantity compensation exists or not;
checking reverse electric quantity of other power supply customers except the transformer substation and the examination outdoor of the transformer substation area;
and checking whether the condition of power input and power retention of the power generation vehicle or the power generation machine exists.
Optionally, checking the examination table and the metering device of the platform area includes:
and checking whether the check list and the metering device of the platform area have faults.
Optionally, checking the user change relationship includes:
checking whether the industrial work order is accurately filed in time;
checking whether the electronic transfer work order is submitted timely and accurately;
and checking whether the history station line-to-user relationship is wrong.
Optionally, the method for determining the reason of the line loss of the power supply network further comprises the following steps:
and obtaining the difference value of the power supply quantity and the power selling quantity of each power supply station area, and determining the station area to be checked according to the difference value.
Optionally, the method for determining the reason of the line loss of the power supply network further comprises the following steps:
when at least one factor of the meter reading data of the station area to be checked, the user change relation, the station area checking list and the metering device does not meet the set requirement, determining the line loss reason according to the factor which does not meet the requirement.
Optionally, after determining that the line loss is due to electricity theft according to the user voltage and current data, the user three-phase imbalance value, the fitting degree of the user electricity consumption trend and the line loss trend, the user heavy overload and the user electricity consumption trend data of the to-be-checked area, the method further includes:
determining the type of electricity stealing;
and determining the electricity stealing processing result of the electricity stealing user according to the electricity stealing type.
In a second aspect, an embodiment of the present invention further provides a device for determining a cause of line loss of a power supply network, where the device includes:
the checking module is used for checking the district meter reading data, the household change relation, the district check list and the metering device of the district to be checked in sequence;
the acquisition module is used for acquiring the user voltage and current data, the user three-phase imbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy overload and the user power consumption trend data of the to-be-checked area when the checking result meets the set requirement;
and the line loss cause determining module is used for determining the line loss cause according to the user voltage and current data, the user three-phase imbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy overload and the user power consumption trend data of the to-be-checked area.
Optionally, the checking module includes:
the synchronization checking unit is used for checking whether the electricity selling quantity and the electricity supplying quantity are in synchronization or not;
the misplug and missed copy checking unit is used for checking whether misplug and missed copy exist;
the electric quantity compensation checking unit is used for checking whether electric quantity compensation exists or not;
the reverse electric quantity checking unit is used for checking reverse electric quantity of other power supply customers except the transformer substation and the examination outdoor of the transformer district;
and the electricity-keeping condition checking unit is used for checking whether the electricity-keeping condition input by the generator car or the generator exists.
Optionally, the checking module further includes:
the work order filing detection unit is used for checking whether the industrial work order is timely and accurately filed;
the work order submitting and checking unit is used for checking whether the electronic transfer work order is submitted timely and accurately;
and the user-to-user relationship detection unit is used for checking whether the history station line-to-user relationship is wrong.
The technical scheme of the embodiment is to check the meter reading data of the station area to be checked, the user change relation, the station area checking list and the metering device in sequence. When the checking result meets the set requirement, the user voltage and current data, the user three-phase imbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy overload amount and the user power consumption trend data of the to-be-checked area are obtained. And determining the line loss reason according to the user voltage and current data of the to-be-checked area, the user three-phase unbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy overload and the user power consumption trend data. The technical scheme of the embodiment solves the problems of low efficiency, poor reliability, strong manual intervention, one-sided analysis and the like in determining the line loss reason of the power supply network, can rapidly determine the line loss reason according to data analysis, greatly reduces labor cost and time cost, greatly improves the efficiency and accuracy of the line loss analysis work of the transformer area, and improves the line loss management and control level of the transformer area.
Drawings
Fig. 1 is a flowchart of a method for determining a cause of line loss of a power supply network according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a power supply network line loss cause determining device according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a checking module of a power supply network line loss cause determining device according to a second embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Example 1
Fig. 1 is a flowchart of a power supply network line loss cause determining method according to an embodiment of the present invention, where the power supply network line loss cause determining method may be performed by a power supply network line loss cause determining device, and the device may be implemented by software and/or hardware. Referring to fig. 1, the specific steps of the determination method are as follows:
s110, checking the meter reading data, the user change relation, the platform check list and the metering device of the platform to be checked in sequence.
The meter reading data of the platform area comprise platform area electricity sales data, power supply data, electricity quantity reverse compensation data, reverse electricity quantity data and input electricity preservation data. The user change relation refers to the home relation between the user and the platform area, and the home relation between the user and the platform area is inconsistent with the actual scene, and is called user change relation error. For example, there are abnormal situations such as negative line loss or high line loss in checking the area due to the fact that the user change relation file is not updated timely or the recording is wrong due to temporary change of the line in part of the area. The station area checking meter refers to an electric energy meter for measuring the power supply quantity of the station area to be checked. The metering device is used for measuring the metering appliance of the electricity consumption of the user. The metering device can be composed of an electric energy meter and a metering transformer (comprising a voltage transformer and a current transformer).
The method comprises the steps of obtaining platform meter reading data, user change relation, platform examination table data and metering device data of a platform to be checked from an electricity consumption information acquisition system, preprocessing, checking, rectifying and modifying the line loss of the platform according to data analysis, and if the line loss is still high (the line loss rate of a community is more than 3% and the rural area of a street is more than 5%), primarily judging that a suspected electricity stealing user exists in the platform, and further electricity stealing analysis and electricity consumption checking.
And S120, when the checking result meets the set requirement, acquiring user voltage and current data, user three-phase imbalance values, fitting degree of user power consumption trend and line loss trend, user heavy overload and user power consumption trend data of the to-be-checked area.
The method comprises the steps of obtaining user voltage and current data, user three-phase unbalance values, fitting degree of user electricity consumption trend and line loss trend, user heavy load and user electricity consumption trend data of a to-be-checked area, analyzing the current and voltage values, fitting degree of line loss trend and user electricity consumption trend, three-phase unbalance value user heavy load and user electricity consumption trend data and the like of a user in a jurisdiction, combining the existing anti-electricity-stealing method and measure, locking suspected electricity-stealing users, and reducing the possible range of electricity stealing.
S130, determining the line loss reason according to the user voltage and current data, the user three-phase unbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy load and the user power consumption trend data of the to-be-checked area.
And if the situation occurs, the user initially judges that the situation occurs, and possibly falsifies or starts the sealed electricity metering device of the power supply enterprise to seal the electricity or deliberately damages the electricity metering device of the power supply enterprise to use the electricity, so that the display of the area to be checked is abnormal.
When the user has three-phase unbalance, the line loss reason can be primarily determined as the power consumption of the user by the power supply and electricity consumption metering device.
The electricity consumption trend data of the user comprises electricity consumption of the user and fluctuation change of electricity consumption of the user in a certain time period. Whether the budget electricity consumption of the user has larger deviation from the actual electricity consumption or not can be judged according to the electricity consumption trend data of the user, and if the large deviation occurs, the electricity consumption metering device of the power supply enterprise is initially judged to be inaccurate or invalid.
The line loss trend characterizes the fluctuation of the line loss in a certain time period. The user electricity consumption trend curve and the line loss trend curve can be drawn on the same graph, and the fitting degree of the user electricity consumption trend and the line loss trend is displayed in an intuitive and real mode. If the user electricity consumption trend and the line loss trend are in positive correlation, the more the user electricity consumption is, the higher the line loss is; the less electricity is used by a user, the lower the line loss is, the user may have electricity larceny, and the reason for the line loss may be caused by electricity larceny of the user.
In addition, the user heavy overload can be analyzed, namely whether the capacitance of the next customers of the analysis platform area exceeds the rated capacity of the transformer or the load rate is more than 80%, and if so, the reasons of abnormal line loss can be primarily determined for production operation reasons.
The technical scheme of the embodiment is to check the meter reading data of the station area to be checked, the user change relation, the station area checking list and the metering device in sequence. When the checking result meets the set requirement, the user voltage and current data, the user three-phase imbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy overload amount and the user power consumption trend data of the to-be-checked area are obtained. And determining the line loss reason according to the user voltage and current data of the to-be-checked area, the user three-phase unbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy overload and the user power consumption trend data. The technical scheme of the embodiment solves the problems of low efficiency, poor reliability, strong manual intervention, one-sided analysis and the like in determining the line loss reason of the power supply network, can rapidly determine the line loss reason according to data analysis, greatly reduces labor cost and time cost, greatly improves the efficiency and accuracy of the line loss analysis work of the transformer area, and improves the line loss management and control level of the transformer area.
Optionally, checking the meter reading data of the area to be checked includes:
checking whether the electricity selling quantity and the electricity supplying quantity are synchronous;
checking whether the misplacement reading and missed reading exist;
checking whether electric quantity compensation exists or not;
checking reverse electric quantity of other power supply customers except the transformer substation and the examination outdoor of the transformer substation area;
and checking whether the condition of power input and power retention of the power generation vehicle or the power generation machine exists.
Specifically, checking whether the electricity sales amount and the electricity supply amount are synchronous refers to checking whether the electricity supply amount and the electricity sales amount belong to the same time period through a function of 'look-up table code' in the marketing system. Checking whether the meter is wrongly read or not refers to checking whether the meter reading system remotely reads the electricity consumption data of the user wrongly read or not caused by internal faults or communication interruption transmission and other reasons.
Because of system reasons, some users pay more electricity in the last month, the electricity paid more in the current month is converted into electricity to be returned to the users, or the electricity is leaked and collected in the last month, and the electricity is recovered in the current month, so that the electricity selling amount and the electricity supplying amount in the current month are different, and therefore whether the electricity is recovered or not needs to be checked. Checking whether the electric quantity is in the back-fill state can check the work order affecting the electric quantity statistics, and confirm whether the meter code is accurately recorded, whether the back-fill or back-fill electric quantity calculation is reasonable, whether the file is recorded timely, and whether the electric quantity belonging month period is correct.
Checking reverse electric quantity of other power supply customers except the transformer substation and the transformer district to check the outdoor power supply customers refers to checking whether power is supplied in the direction of a power plant in places such as a photovoltaic power plant, a small water power plant, a garbage power plant and the like, and checking whether settlement of the reverse power supply electric quantity is normal or not. Checking whether the power generation car or the generator input power protection condition exists refers to acquiring information from a production operation department, and whether the power generation car/generator input power protection condition exists in a platform area, if the line loss rate is normal after the input electric quantity is included in the power supply quantity statistics, the line loss cause can be determined to be the input power protection condition when the production operation is performed.
Optionally, checking the examination table and the metering device of the platform area includes:
and checking whether the check list and the metering device of the platform area have faults.
The checking whether the check meter of the station area has faults or not specifically means that the metering automation system is compared with the monthly and daily meter reading records by comparing the historical meter reading electric quantity, and the checking whether the check meter of the station area has the problem of inaccurate metering or not is performed on site. Faults existing in the metering device comprise a wiring fault problem of the electric energy meter and a multiplying power fault problem of the transformer.
Optionally, checking the user change relationship includes:
checking whether the industrial work order is accurately filed in time;
checking whether the electronic transfer work order is submitted timely and accurately;
and checking whether the historical station line change relation is wrong.
Specifically, checking whether the business expansion work order is timely and accurately filed includes checking whether the on-the-way operation work order is timely filed, checking whether the on-the-spot assembled meter is used for electricity, checking whether a system client does not build a file, and confirming important fields of a newly assembled user file, including user category, metering point voltage level, a line to which a metering point belongs and whether a metering point platform area is accurate.
Checking whether the electronic transfer work order is submitted timely and accurately includes: and checking whether the electronic transfer work order is not filled out normally, the electronic transfer data is input incorrectly or inconsistent with the site, so that the situation of 'station line changing' relation is wrong.
Checking whether the historical station line change relation is wrong comprises checking basic information of synchronization of a GIS (Geographic Information System, GIS) system to a marketing system.
Optionally, the method for determining the reason of the line loss of the power supply network further comprises the following steps:
and obtaining the difference value of the power supply quantity and the power selling quantity of each power supply station area, and determining the station area to be checked according to the difference value.
The line loss of the power supply network refers to the loss of active power generated in the processes of transmission, distribution and sales of the power, and generally refers to the difference between the power supply quantity and the sales quantity in a certain period in actual work. The power supply amount refers to the total amount of power (including power loss in transmission) delivered to the user through the substation. The electricity sales amount refers to the obtained electricity calculated by the electricity meter at the user side, namely the actual electricity consumption of the user. Power supply = sales + loss. And acquiring the difference value of the power supply quantity and the sales power quantity of each power supply area, and if the difference value has larger deviation, judging the power supply area with larger deviation as the area to be checked.
Optionally, the method for determining the reason of the line loss of the power supply network further comprises the following steps:
when at least one factor of the meter reading data of the station area to be checked, the user change relation, the station area checking list and the metering device does not meet the set requirement, determining the line loss reason according to the factor which does not meet the requirement.
When the meter reading data of the area to be checked does not meet the set requirement, the line loss may be caused by the error of the meter reading data. When the user change relation does not meet the setting requirement, the line loss reasons may be caused by the fact that the number of users is increased, users are sold, the power consumption address is changed, and the like, so that the change of the user change relation of the station area occurs, and the information is not updated in time. When the area checking table does not meet the set requirement, the line loss cause may be caused by the wiring error of the area checking table or the fault of the area checking table. When the metering device does not meet the set requirements, the line loss cause may be caused by a miswiring or malfunction of the metering device. Optionally, determining the line loss factor is that after electricity is stolen according to the user voltage and current data, the user three-phase unbalance value, the fitting degree of the user electricity consumption trend and the line loss trend, the user heavy load and the user electricity consumption trend data of the to-be-checked area, and further comprising:
determining the type of electricity stealing;
and determining the electricity stealing processing result of the electricity stealing user according to the electricity stealing type.
Specifically, the electricity larceny type includes: on the power supply facilities of a power supply enterprise, power is used by unauthorized wiring; counterfeiting or starting the sealed electricity metering device of the power supply enterprise to seal electricity or deliberately damaging the electricity metering device of the power supply enterprise to use electricity or deliberately causing the electricity metering device of the power supply enterprise to be inaccurate or invalid to steal electricity; and other electricity stealing types such as electricity consumption of electricity metering devices of bypass power supply enterprises.
On the power supply facilities of a power supply enterprise, the unauthorized wiring is used for electricity, the stolen electric quantity is calculated and determined according to the rated capacity (kilovolts, ampere and kilowatts) of private equipment multiplied by the actual use time, and the actual time cannot be determined according to 180 days.
Illustratively, there are two methods of electricity theft handling when electricity is used by unauthorized wiring on the power supply main line of the power supply company when of the electricity theft type. The first processing method is that the stolen electric quantity is determined by multiplying the capacity (16.2 KW) of the private equipment by the actual use time, when the stolen electric time can not be found out, the number of the stolen electric days is calculated at least by one hundred eighty days, and the daily stolen electric time is as follows: the resident user calculates for 6 hours. The calculation formula of the additional electric quantity during the electricity stealing period is as follows: 16.2KW x 6 hours x 180 days = 17496 degrees. The additional charge quantity is multiplied by the unit price of the electric charge during electricity stealing, so that the electric charge required to be charged for electricity stealing is obtained, and the electric power department penalizes the user according to the charged electric charge.
The second processing method is that the stolen electric quantity is determined by multiplying the capacity of the private equipment (the electric meter number is 645.0kWh multiplied by 20) by the actual use time, and when the stolen electric time can not be found out, the stolen electric quantity is calculated by at least one hundred eighty days, and the daily stolen electric time is as follows: the resident user calculates according to 6 hours, the site is non-industrial electricity, and the low-power low-metering multiplying power is 20 times. Additional charge during theft = charge recorded by the electricity meter over a duration of theft x magnification (20 times) = 645.0kWh x 20 = 12900kWh. The additional charge quantity is multiplied by the unit price of the electric charge during electricity stealing, so that the electric charge required to be charged for electricity stealing is obtained, and the electric power department penalizes the user according to the charged electric charge.
When the electricity larceny type is that the electricity metering device sealed by a fake or opened power supply enterprise is used for sealing the electricity, the electricity metering device of the power supply enterprise is damaged deliberately, the electricity metering device of the power supply enterprise is inaccurate or invalid for larceny, the larceny electric quantity is calculated and determined according to the electric meter indication number indicated by the electric meter cover opening time and the actual larceny time.
Illustratively, the electricity larceny cover opening time, XX, month, XX, day, electric energy meter number is 335.7kWh, the electricity larceny check time, XX, month, XX, day, electric energy meter number is 7549.75kWh, the difference value is 7214.05kWh, and the check error value is-73.949%. Electricity theft = electricity meter the amount of electricity recorded over the duration of electricity theft (-G)/(1+G) = 7214.05kWh x 0.73949/0.26051 = 20477.78kWh. The electricity stealing quantity multiplied by the unit price of the electricity charge is the electricity charge required to be paid by electricity stealing, and the electric power department penalizes the user according to the charge.
When the electricity stealing type is other electricity stealing behaviors such as electricity consumption of an electricity metering device of a bypass power supply enterprise, the electricity stealing quantity is calculated and determined according to the capacity (kilovolt and ampere and kilowatt) indicated by the calibration current value of a charging electric energy meter (the current value is set according to a current limiter) and the actual stealing time. When the electricity stealing time can not be found out, the electricity stealing date is calculated by at least one hundred eighty days, and the electricity stealing time is daily: the power consumer calculates according to 12 hours; the lighting user calculates at 6 hours.
The capacity calculation indicated by the calibration current value of the charging electric energy meter is exemplified. When the electricity stealing time can not be found out, the electricity stealing date is calculated by 180 days, the electricity consumption of the field illumination is calculated by 6 hours, the calibration current is calculated by 5A, and the voltage is calculated by 220V. Electricity stealing amount: 5a 0.22 x 6 x 180 = 1188kWh. The electricity stealing quantity multiplied by the unit price of the electricity charge is the electricity charge required to be paid by electricity stealing, and the electric power department penalizes the user according to the charge.
The embodiment determines the electricity larceny processing result of the electricity larceny user according to the electricity larceny type. The method solves the problems that the current manual calculation of the electricity stealing and additional charge and the default use charge cannot be accurately consistent with the calculation amount of the system electricity stealing, and the phenomena of non-uniform calculation data, calculation errors and the like often occur, so that the electricity stealing and additional charge errors or the additional charge is not in place are caused. In the process of anti-electricity-stealing and checking by staff, the automatic calculation of the electricity-stealing processing result is realized by the electricity-stealing type judged by on-site electricity utilization checking and the electricity-stealing clients checked by on-site electricity-stealing data input, the calculation process and the calculation result are related to a job ticket of the electricity-stealing data, and the calculation result is exported, so that the electricity-stealing calculation time is shortened, the electricity-stealing calculation accuracy and reliability are improved, and the intelligent application of the electricity-stealing calculation is realized.
Example two
The embodiment of the invention also provides a device for determining the line loss reason of the power supply network, which can be realized by software and/or hardware and is used for executing the determining method provided by any embodiment of the invention, and the technical principle and the effect are similar and are not repeated. Fig. 2 is a schematic structural diagram of a power supply network line loss cause determining apparatus according to a second embodiment of the present invention, and referring to fig. 2, the power supply network line loss cause determining apparatus includes:
the checking module 10 is used for checking the meter reading data of the area to be checked, the user change relation, the area checking list and the metering device in sequence.
The obtaining module 20 is configured to obtain user voltage and current data, a user three-phase imbalance value, a fitting degree of a user power consumption trend and a line loss trend, a user heavy overload amount, and user power consumption trend data of the to-be-checked area when the checking result meets a set requirement;
the line loss cause determining module 30 is configured to determine a line loss cause according to the user voltage and current data, the user three-phase imbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy load and the user power consumption trend data of the to-be-checked area.
The device can execute the method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of executing the method.
Fig. 3 is a schematic structural diagram of a checking module of a power supply network line loss cause determining apparatus according to a second embodiment of the present invention, and referring to fig. 3, optionally, the checking module 10 includes:
the synchronization checking unit 101 is configured to check whether the sales power and the power supply are in synchronization;
a misplug and missed copy checking unit 102 for checking whether misplug and missed copy exist;
the electric quantity compensation checking unit 103 is used for checking whether electric quantity compensation exists;
the reverse electric quantity checking unit 104 is used for checking reverse electric quantity of other power supply customers except the transformer substation and the examination outdoor of the transformer district;
and the electricity-keeping condition checking unit 105 is used for checking whether the electricity-keeping condition input by the generator car or the generator exists.
With continued reference to fig. 3, the audit module 10 optionally further includes:
a work order filing detection unit 106 for checking whether the work order is timely and accurately filed;
a work order submission checking unit 107 for checking whether the electronic mobile delivery work order is submitted accurately in time;
the user-changing relation detecting unit 108 is configured to check whether the historical station line-changing relation is wrong.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (6)
1. The method for determining the line loss cause of the power supply network is characterized by comprising the following steps of:
checking the meter reading data of the station area to be checked, the user change relation, the station area checking list and the metering device in sequence;
when the checking result meets the set requirement, acquiring user voltage and current data, user three-phase imbalance values, fitting degree of user power consumption trend and line loss trend, user heavy overload and user power consumption trend data of the to-be-checked area;
determining a line loss reason according to the user voltage and current data, the user three-phase imbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy load and the user power consumption trend data of the to-be-checked area;
checking the meter reading data of the station area to be checked, comprising:
checking whether the electricity selling quantity and the electricity supplying quantity are synchronous;
checking whether the misplacement reading and missed reading exist;
checking whether electric quantity compensation exists or not;
checking reverse electric quantity of other power supply customers except the transformer substation and the examination outdoor of the transformer substation area;
checking whether a power generation vehicle or a power generator input power-preserving condition exists;
checking the user change relation comprises the following steps:
checking whether the industrial work order is accurately filed in time;
checking whether the electronic transfer work order is submitted timely and accurately;
and checking whether the history station line-to-user relationship is wrong.
2. The method of claim 1, wherein checking the staging area assessment table and the metering device comprises:
and checking whether the check list and the metering device of the platform area have faults.
3. The method as recited in claim 1, further comprising:
and obtaining the difference value of the power supply quantity and the power selling quantity of each power supply station area, and determining the station area to be checked according to the difference value.
4. The method as recited in claim 1, further comprising:
when at least one factor of the meter reading data of the station area to be checked, the user change relation, the station area checking list and the metering device does not meet the set requirement, determining the line loss reason according to the factor which does not meet the requirement.
5. The method of claim 1, wherein determining the line loss cause is based on the user voltage and current data, the user three-phase imbalance value, the fit of the user power trend and the line loss trend, the user heavy overload, and the user power trend data for the to-be-checked area, further comprising:
determining the type of electricity stealing;
determining from the electricity theft type
And (5) a power stealing processing result of the power stealing user.
6. A power supply network line loss cause determining apparatus, comprising:
the checking module is used for checking the district meter reading data, the household change relation, the district check list and the metering device of the district to be checked in sequence;
the acquisition module is used for acquiring the user voltage and current data, the user three-phase imbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy overload and the user power consumption trend data of the to-be-checked area when the checking result meets the set requirement;
the line loss cause determining module is used for determining the line loss cause according to the user voltage and current data, the user three-phase imbalance value, the fitting degree of the user power consumption trend and the line loss trend, the user heavy overload and the user power consumption trend data of the to-be-checked area;
the checking module comprises:
the synchronization checking unit is used for checking whether the electricity selling quantity and the electricity supplying quantity are in synchronization or not;
the misplug and missed copy checking unit is used for checking whether misplug and missed copy exist;
the electric quantity compensation checking unit is used for checking whether electric quantity compensation exists or not;
the reverse electric quantity checking unit is used for checking reverse electric quantity of other power supply customers except the transformer substation and the examination outdoor of the transformer district;
the electricity-keeping condition checking unit is used for checking whether the electricity-keeping condition input by the generator car or the generator exists;
the verification module further includes:
the work order filing detection unit is used for checking whether the industrial work order is timely and accurately filed;
the work order submitting and checking unit is used for checking whether the electronic transfer work order is submitted timely and accurately;
and the user-to-user relationship detection unit is used for checking whether the history station line-to-user relationship is wrong.
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