Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Example 1:
fig. 1 illustrates an abnormal power consumption identification method for an electricity consumer according to an embodiment of the present invention, which is detailed as follows:
in S101, power consumption data of a preset time period of a target power-dedicated user is acquired.
Along with the construction of the intelligent power grid, the electricity utilization information acquisition system basically realizes full coverage in the whole country, has the function of acquiring the electricity consumption data of the special power users, and provides a data base for the special power users for checking the abnormal metering voltage.
In this embodiment, a target specific power user, a preset time period to be analyzed, and an analysis range are selected from the power consumption information acquisition system, where the preset time period may be one week or one month, and the analysis range may be voltage and current.
In S102, whether the electricity consumption data at each time in the electricity consumption data of the preset time period satisfies a preset electricity consumption abnormal condition is detected.
In this embodiment, the power consumption data at each time in the power consumption data is analyzed, whether the power consumption data at each time meets a preset power consumption abnormal condition is judged, if yes, the power consumption of the target power-dedicated user is suspected to be abnormal preliminarily, and if not, the power consumption of the target power-dedicated user is proved to be normal, wherein the power consumption data is voltage data and current data.
In S103, if the power consumption data of the target special power users at the first moment meets the preset power consumption abnormal condition, the power consumption data of the first special power users at the first moment is used as power consumption verification data; the first dedicated power user is a user on the same line as the target dedicated power user.
In this embodiment, if the power consumption data of the target power-dedicated user at the first time meets the preset power consumption abnormal condition, the power consumption data of the first power-dedicated user on the same line as the target power-dedicated user at the first time is acquired as power consumption verification data, and it is determined whether the power consumption data of the first power-dedicated user meets the preset power consumption verification condition, if so, it is finally determined that the power consumption of the target power-dedicated user is abnormal, and if not, the target power-dedicated user can be taken as a suspected power consumption abnormal user, and the power consumption data is repeatedly tracked.
In S104, if the power consumption verification data of the first dedicated power user satisfies the preset power consumption verification condition, it is determined that the power consumption of the target dedicated power user is abnormal.
As can be seen from the above embodiments, in the embodiments of the present invention, power consumption data of a preset time period of a target power-dedicated transformation user is obtained; respectively detecting whether the electricity consumption data at each moment in the electricity consumption data of the preset time period meet the abnormal condition of the preset electricity consumption; if the power consumption data of the target special power users at the first moment meet the preset power consumption abnormal condition, taking the power consumption data of the first special power users at the first moment as power consumption verification data; the first special power user is a user on the same line with the target special power user; and if the electricity consumption verification data of the first special power users meet the preset electricity consumption verification conditions, judging that the electricity consumption of the target special power users is abnormal. According to the embodiment of the invention, through acquiring the large power consumption data of the power consumption information acquisition system, whether the power consumption is abnormal or not can be judged according to the power consumption data of the special power users, the abnormal power consumption troubleshooting efficiency can be improved, and the abnormal power consumption troubleshooting accuracy can be improved.
As shown in fig. 2, in an embodiment of the present invention, a specific implementation flow of S101 in fig. 1 includes:
in S201, the electric energy meter types of the target special power transmission users are obtained, where the electric energy meter types include a three-phase three-wire electric energy meter and a three-phase four-wire electric energy meter.
In S202, if the type of the target special power conversion user electric energy meter is a three-phase three-wire electric energy meter, the line voltage between the phases a and b of the three-phase three-wire electric energy meter is used as a first line voltage, the line voltage between the phases c and b is used as a second line voltage, and first electric quantity data is acquired according to the first line voltage and the second line voltage.
In S203, if the electric energy meter type of the target special power conversion user is a three-phase four-wire electric energy meter, second-use electric energy data is acquired according to three phase voltages, namely, the a-phase voltage, the b-phase voltage and the c-phase voltage.
In this embodiment, the power supply company generally uses a three-phase three-wire electric energy meter and a three-phase four-wire electric energy meter to measure the power consumption of the power-dedicated users. The invention respectively identifies the abnormal metering voltage of the special transformer users of the three-phase three-wire electric energy meter and the special transformer users of the three-phase four-wire electric energy meter.
In this embodiment, when the type of the electric energy meter is a three-phase three-wire electric energy meter, the line voltages between phases a and b and the line voltages between phases b and c in the three-phase electricity of the electric energy meter are collected, and the line voltages between phases a and b are taken as the first line voltage UabTaking the line voltage between b and c as the second line voltage UcbAnd taking the first line voltage data and the corresponding current data of the target special transformer user as first electric quantity data.
In this embodiment, when the type of the electric energy meter is a three-phase four-wire electric energy meter, voltage data of phase voltages of a phase a, a phase b and a phase c in three-phase power of the electric energy meter are respectively collected, and the voltage data of the phase a and corresponding current data of a target specific power consumer, the voltage data of the phase b and corresponding current data, and the voltage data of the phase c and corresponding current data are used as second electric quantity data.
In an embodiment of the present invention, the electric energy meter is a three-phase three-wire electric energy meter, and S102 in fig. 1 specifically includes:
and respectively detecting whether the voltage value and the corresponding current value at each moment in the first electricity consumption data of the target special power transformer user meet a first preset electricity consumption abnormal condition.
In this embodiment, whether the power consumption abnormality of the target dedicated power consumer exists is determined according to the voltage data and the corresponding current data of the first line voltage and the voltage data and the corresponding current data of the second line voltage.
In an embodiment of the present invention, the first preset power consumption abnormal condition is:
wherein, UltFor the voltage value of the preset line voltage at time t, IltIs UltCurrent value, U, corresponding at time tNRated value of line voltage, INFor the nominal value of the line current, the line voltage is preset to the first line voltage and/or the second line voltage.
In this embodiment, UltComprises a UabtAnd UcbtWherein U isabtRepresenting the voltage value, U, of the first line voltage at time tcbtRepresenting the voltage value, I, of the second line voltage at time tltComprises IabtAnd IcbtIn which IabtIndicating the current value, I, at time t of the first line voltagecbtIndicating the voltage value of the second line voltage corresponding to time t.
In this embodiment, the first preset power consumption abnormality condition includes
in the present embodimentWhen U is formedabt<70%UNAnd Iabt>5%INAnd then, preliminarily judging that the target special power users are suspected abnormal power consumption users, further detecting power consumption data of certain special power users on the same line with the target special power users, and determining whether the target special power users are abnormal in power consumption.
In this embodiment, when U is presentcbt<70%UNAnd Icbt>5%INAnd then, preliminarily judging that the target special power users are suspected abnormal power consumption users, further detecting power consumption data of certain special power users on the same line with the target special power users, and determining whether the target special power users are abnormal in power consumption.
When U is turnedabt<70%UNAnd U iscbt<70%UN、Iabt>5%INAnd Icbt>5%INAnd then, preliminarily judging that the target special power users are suspected abnormal power consumption users, further detecting power consumption data of certain special power users on the same line with the target special power users, and determining whether the target special power users are abnormal in power consumption.
In an embodiment of the present invention, the electric energy meter is a three-phase four-wire electric energy meter, and S102 in fig. 1 specifically includes:
and respectively detecting whether the voltage value and the corresponding current value at each moment in the second electric quantity data of the target special power transformation user meet a second preset electric quantity abnormal condition.
In one embodiment of the present invention, the second preset power usage abnormal condition includes:
wherein, UptPresetting the voltage value, I, of the phase voltage at the moment t for the target power-specific userptIs UtCurrent value, U, corresponding at time tNRated value of line voltage, INIn order to be the nominal value of the line current,the preset phase voltage is at least one of the three phase voltages.
In this embodiment, UptComprises a Uat、UbtAnd UctWherein U isatIndicating the voltage value, U, of the a-phase voltage at time tbtRepresenting the voltage value, U, of the b-phase voltage at time tctAnd represents the voltage value of the c-phase voltage at the time t. I isptComprises Iat、IbtAnd IctIn which IatIndicates the current value, I, of the voltage of the a-phase at time tbtRepresents the current value, I, of the b-phase voltage at time tctThe current value of the c-phase voltage at time t is shown.
And when the power consumption data of the target special power consumption user meets a second preset power consumption abnormal condition, preliminarily judging that the target special power consumption user is a suspected power consumption abnormal user.
In one embodiment of the invention, the preset power usage verification condition comprises
wherein, UabitA voltage value, U, representing the first line voltage at time tcbitA voltage value, U, representing the voltage at the second line at time taitRepresenting the a-phase voltage value, U, at time tbitB-phase voltage value, U, at time tcitC-phase voltage value, U, representing time tNRated value of line voltage, INIs the nominal value of the line current.
In this embodiment, when the electric energy meter type of the first special power consumer is a three-phase three-wire electric energy meter, it is determined whether the electricity consumption verification data of the first special power consumer satisfies the requirement
If the electric energy of the first special power userWhen the type of the meter is a three-phase four-wire electric energy meter, whether the electricity consumption verification data of the first special power user meets the requirement or not is judged
In an embodiment of the invention, a specific application scenario is taken as an example, data of a special electric power user in a certain county in 7, 17 and 7 months in 2018 are selected from an electricity utilization information acquisition system for example analysis, and it is obtained that two special electric power users C1 and C2 have abnormal metering voltage, C1 is the special electric power user of a three-phase four-wire electric energy meter, and C2 is the special electric power user of the three-phase three-wire electric energy meter.
The rated value of the phase voltage of C1 is 220V, the rated value of the phase current is 100A, the voltage data of the day is shown in table 1, and the current data is shown in table 2.
The A-phase voltage U of C1 is shown in tables 1 and 2aIs always around 120V, but phase A current IaHowever, the voltage measured by the phase a of C1 is relatively normal, and therefore, the voltage measured by the phase a is always abnormal on the same day, and it is suspected that the amount of electricity is leaked.
In the present embodiment, the rated value of the phase voltage of C2 is 220V, the rated value of the phase current is 100A, the voltage data of the day of C2 is shown in table 3, and the current data is shown in table 4.
Line voltage U of C2, as shown in tables 3-4abAt 16:00-17:00 is 0, but phase A current IaIt is certainly normal, and thus can be seen that the line voltage U of C2abThe state was abnormal at 16:00 to 17:00, and the electric quantity was suspected to be leaked.
TABLE 1
TABLE 2
TABLE 3
TABLE 4
The embodiment of the invention fully combines the relevant knowledge of the electrical engineering and the power distribution network framework, is simple and practical, does not need additional detection equipment, has lower cost, can avoid the problem of electric quantity leakage caused by abnormal metering voltage of a special power user, and maintains the economic benefit of a power supply company.
According to the embodiment, the accuracy of the analysis structure is improved, the method is high in popularization due to the full coverage of the power utilization information acquisition system, the abnormal power utilization automatic identification of the special power users can be achieved comprehensively, manual intervention is not needed in the whole process, and a large amount of human resources are saved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Example 2:
as shown in fig. 3, an abnormal power consumption identification apparatus 100 for an electricity consumer according to an embodiment of the present invention is configured to execute the method steps in the embodiment corresponding to fig. 1, and includes:
the power consumption data acquisition module 110 is configured to acquire power consumption data of a preset time period of a target special power user;
the abnormal condition determining module 120 is configured to detect whether the power consumption data at each time in the power consumption data in the preset time period meets a preset power consumption abnormal condition;
the power consumption verification data acquisition module 130 is configured to use the power consumption data of the first special power user at the first moment as power consumption verification data when the power consumption data of the target special power user at the first moment meets a preset power consumption abnormal condition; the first special power user is a user on the same line with the target special power user;
and a power consumption abnormality determining module 140, configured to determine that the power consumption of the target dedicated power transformer user is abnormal if the power consumption verification data of the first dedicated power transformer user meets a preset power consumption verification condition.
As can be seen from the above embodiments, in the embodiments of the present invention, first, power consumption data of a preset time period of a target power-dedicated-transformation user is obtained; respectively detecting whether the electricity consumption data at each moment in the electricity consumption data of the preset time period meet the abnormal condition of the preset electricity consumption; if the power consumption data of the target special power users at the first moment meet the preset power consumption abnormal condition, taking the power consumption data of the first special power users at the first moment as power consumption verification data; the first special power user is a user on the same line with the target special power user; and if the electricity consumption verification data of the first special power users meet the preset electricity consumption verification conditions, judging that the electricity consumption of the target special power users is abnormal. According to the embodiment of the invention, through acquiring the large power consumption data of the power consumption information acquisition system, whether the power consumption is abnormal or not can be judged according to the power consumption data of the special power users, the abnormal power consumption troubleshooting efficiency can be improved, and the abnormal power consumption troubleshooting accuracy can be improved.
As shown in fig. 4, in an embodiment of the present invention, the power consumption data obtaining module 110 in the embodiment corresponding to fig. 4 further includes a structure for executing the method steps in the embodiment corresponding to fig. 2, where the structure includes:
the electric energy meter type obtaining unit 111 is used for obtaining the electric energy meter type of the target special power user, and the electric energy meter type comprises a three-phase three-wire electric energy meter and a three-item four-wire electric energy meter;
the first electric quantity data acquisition unit 112 is configured to, if the electric energy meter type of the target special power consumer is a three-phase three-wire electric energy meter, use line voltages between phases a and b of the three-phase three-wire electric energy meter as first line voltages, use line voltages between phases c and b as second line voltages, and acquire first electric quantity data according to the first line voltages and the second line voltages;
and a second electric quantity data obtaining unit 113, configured to obtain second electric quantity data according to three phase voltages, namely, the a phase, the b phase, and the c phase, of the three-phase four-wire electric energy meter, if the type of the electric energy meter of the target special electric power user is a three-phase four-wire electric energy meter.
In an embodiment of the present invention, the electric energy meter is a three-phase three-wire electric energy meter, and the abnormal condition determining module further includes:
and respectively detecting whether the voltage value and the corresponding current value at each moment in the first electricity consumption data of the target special power transformer user meet a first preset electricity consumption abnormal condition.
In an embodiment of the present invention, the first preset power consumption abnormal condition is:
wherein, UltFor the voltage value of the preset line voltage at time t, IltIs UltCurrent value, U, corresponding at time tNRated value of line voltage, INFor the nominal value of the line current, the line voltage is preset to the first line voltage and/or the second line voltage.
In an embodiment of the present invention, the electric energy meter is a three-phase four-wire electric energy meter, and the abnormal condition determining module further includes:
and respectively detecting whether the voltage value and the corresponding current value at each moment in the second electric quantity data of the target special power transformer user meet a third preset electric quantity abnormal condition.
In one embodiment of the present invention, the second preset power usage abnormal condition includes:
wherein, UptPresetting the voltage value, I, of the phase voltage at the moment t for the target power-specific userptIs UtCurrent value, U, corresponding at time tNRated value of line voltage, INFor the nominal value of the line current, the phase voltage is preset to be at least one of the three phase voltages.
In one embodiment of the invention, the preset power usage verification condition comprises
wherein, UabitA voltage value, U, representing the first line voltage at time tcbitA voltage value, U, representing the voltage at the second line at time taitRepresenting the a-phase voltage value, U, at time tbitB-phase voltage value, U, at time tcitC-phase voltage value, U, representing time tNRated value of line voltage, INIs the nominal value of the line current.
In one embodiment, the power consumer power consumption abnormality recognition apparatus 100 further includes other functional modules/units for implementing the method steps in the embodiments of embodiment 1.
Example 3:
as shown in fig. 5, an embodiment of the present invention further provides a terminal device 5, which includes a memory 51, a processor 50, and a computer program 52 stored in the memory 51 and executable on the processor 50, where the processor 50 executes the computer program 52 to implement steps in each embodiment as described in embodiment 1, for example, steps S101 to S104 shown in fig. 1. Alternatively, the processor 50, when executing the computer program 52, implements the functions of the respective modules in the respective device embodiments as described in embodiment 2, for example, the functions of the modules 110 to 140 shown in fig. 3.
The terminal device 5 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device 5 may include, but is not limited to, a processor 50 and a memory 51. For example, the terminal device 5 may further include an input/output device, a network access device, a bus, and the like.
The Processor 50 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 51 may be an internal storage unit of the terminal device 5, such as a hard disk or a memory of the terminal device 5. The memory 51 may also be an external storage device of the terminal device 5, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 5. Further, the memory 51 may also include both an internal storage unit of the terminal device 5 and an external storage device. The memory 51 is used for storing the computer program 52 and other programs and data required by the terminal device 5. The memory 51 may also be used to temporarily store data that has been output or is to be output.
Example 4:
an embodiment of the present invention further provides a computer-readable storage medium, in which a computer program 52 is stored, and when being executed by the processor 50, the computer program 52 implements the steps in the embodiments described in embodiment 1, such as step S101 to step S104 shown in fig. 1. Alternatively, the computer program 52 implements the functions of the respective modules in the respective apparatus embodiments as described in embodiment 2, for example, the functions of the modules 110 to 140 shown in fig. 3, when executed by the processor 50.
The computer program 52 may be stored in a computer readable storage medium, and when executed by the processor 50, the computer program 52 may implement the steps of the above-described method embodiments. Wherein the computer program 52 comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs.
The modules or units in the system of the embodiment of the invention can be combined, divided and deleted according to actual needs.
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.