Electricity stealing quantity calculation method and device based on data acquisition device

Abstract

The invention relates to an electricity stealing quantity calculation method and device based on a data acquisition device. The method comprises the steps of setting a data acquisition device, acquiring first current data based on the data acquisition device, and calculating a medium-voltage side current actual consumption value based on the first current data; voltage data, second current data and meter active power corresponding to the collection time point of the first current data are obtained based on a metering general meter, and a medium-voltage side ammeter consumption value is obtained through calculation based on the second current data; a current difference value between the medium-voltage side current actual consumption value and the medium-voltage side ammeter consumption value is obtained, whether the current difference value is larger than a current difference threshold value or not is judged, and when the current difference value is larger than the current difference threshold value, it is judged that the first collection time point of the current data is the electricity stealing time point; and when the acquisition time point of the first current data is the electricity stealing time point, calculating to obtain a medium-voltage side voltmeter back calculation value based on the voltage data. In this way, not only can the specific electricity stealing time be determined, but also the specific electricity stealing quantity can be determined.

Description

Technical Field

[0001] The present disclosure relates to the technical field of anti-electricity theft in distribution networks, and more particularly to a method and device for calculating the amount of electricity stolen based on a data acquisition device. Background Art

[0002] Electricity theft from distribution networks is a serious illegal act that not only threatens the safe and stable operation of the power system, but also harms the interests of power supply companies and legitimate electricity users, and may even cause safety accidents. Manual inspections are a traditional means of combating theft, but due to limitations in manpower, technology, and the environment, they have many inherent shortcomings and are unable to meet the demands of refined management of modern distribution networks. Manual inspections require household checks of meters, lines, and electrical equipment. In large communities and industrial parks, completing a single round of inspections can take weeks or even months, making it difficult to quickly locate the theft. Thieves often exploit periods of low oversight, such as nighttime and holidays, making it difficult for manual inspections to provide round-the-clock monitoring, leading to significant problems of missed inspections and delayed inspections.

[0003] In addition, even if other traditional anti-electricity theft methods can determine whether electricity theft has occurred, the specific time of the theft cannot usually be determined, and the specific amount of electricity stolen cannot be calculated. Summary of the Invention

[0004] In a first aspect of an embodiment of the present disclosure, a method for calculating electricity theft based on a data acquisition device is provided, comprising:

[0005] Setting a data acquisition device, collecting current data 1 based on the data acquisition device, and calculating an actual current consumption value on the medium voltage side based on the current data 1;

[0006] Based on the total meter, voltage data, current data 2, and meter active power corresponding to the time point of current data 1 collection are obtained, and the medium voltage side current meter consumption value is calculated based on current data 2; the current difference between the actual current consumption value on the medium voltage side and the current meter consumption value on the medium voltage side is obtained, and it is determined whether the current difference is greater than a current difference threshold. When the current difference is greater than the current difference threshold, it is determined that the time point of current data 1 collection is a time point of electricity theft; when the time point of current data 1 collection is a time point of electricity theft, a medium voltage side voltage meter inverse calculation value is calculated based on the voltage data;

[0007] The continuous electricity theft time points are obtained as the electricity theft time period, and the amount of electricity theft in the electricity theft time period is calculated based on the current data of each electricity theft time point in the electricity theft time period, the inverse calculated value of the medium voltage side voltage meter, and the meter active power.

[0008] Preferably, the actual current consumption value of the medium voltage side is calculated based on the current data 1 and specifically includes:

[0009] In a point-to-point measurement scenario, the actual current consumption on the medium voltage side is calculated using the following formula:

[0010]

[0011] in, is the actual current consumption value on the medium voltage side; is the current value of phase A in current data 1; is the B-phase current value in current data 1; is the C-phase current value in current data 1;

[0012] In the segmented measurement scenario, the actual current consumption value on the medium voltage side is calculated using the following formula:

[0013]

[0014] in, is the actual current consumption value on the medium voltage side; is the A-phase current value of the current flowing into the node in current data 1; is the B-phase current value of the current flowing into the node in current data 1; is the C-phase current value of the current flowing into the node in current data 1; is the A-phase current value of the current outflow node in current data 1; is the B-phase current value of the current outflow node in current data 1; is the C-phase current value of the current outflow node in current data 1.

[0015] Preferably, the current difference threshold is calculated by the following formula:

[0016]

[0017] in, is the current difference threshold; It is the actual current consumption value on the medium voltage side.

[0018] Preferably, the calculation based on the voltage data to obtain the medium voltage side voltage meter inverse value specifically includes:

[0019] When the transformer winding is Dd connected, the following formula is used to calculate the inverse value of the medium voltage side voltmeter:

[0020]

[0021]

[0022]

[0023]

[0024]

[0025] in, is the A-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side A phase voltage meter; is the B-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side B phase voltage meter; is the C-phase voltage value in the obtained voltage data; is the calculated consumption value of the C-phase voltage meter on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the inverse calculation value of the voltmeter on the medium voltage side;

[0026] When the transformer winding is Dyn connected, the following formula is used to calculate the inverse value of the medium voltage side voltmeter:

[0027]

[0028]

[0029]

[0030]

[0031]

[0032] in, is the A-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side A phase voltage meter; is the B-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side B phase voltage meter; is the C-phase voltage value in the obtained voltage data; is the calculated consumption value of the C-phase voltage meter on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the inverse calculated value of the voltmeter on the medium voltage side.

[0033] Preferably, the calculation of the medium voltage side current meter consumption value based on the second current data specifically includes:

[0034] When the transformer winding is Dd connected, the following formula is used to calculate the current meter consumption value on the medium voltage side:

[0035]

[0036]

[0037]

[0038]

[0039]

[0040] in, is the current value of phase A in the obtained current data 2; is the calculated current meter consumption value of phase A on the medium voltage side; is the B-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase B on the medium voltage side; is the C-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase C on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; is the current meter consumption value on the medium voltage side;

[0041] When the transformer winding is Dyn connected, the following formula is used to calculate the current meter consumption value on the medium voltage side:

[0042]

[0043]

[0044]

[0045]

[0046]

[0047] in, is the current value of phase A in the obtained current data 2; is the calculated current meter consumption value of phase A on the medium voltage side; is the B-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase B on the medium voltage side; is the C-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase C on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the current meter consumption value on the medium voltage side.

[0048] Preferably, the amount of electricity stolen during the electricity theft period is calculated based on the current data 1 at each electricity theft time point during the electricity theft period, the inverse calculated value of the medium voltage side voltage meter, and the meter active power, specifically including:

[0049] In the point-to-point measurement scenario, three consecutive electricity theft time points are obtained from the electricity theft period. Based on the current data at the three consecutive electricity theft time points, the inverse value of the medium voltage side voltage meter, and the meter active power, the electricity theft power at the three consecutive electricity theft time points is calculated using the following formula:

[0050]

[0051]

[0052] in, is the actual current consumption value on the medium voltage side; It is the inverse calculation value of the voltmeter on the medium voltage side; It is the active power of the low voltage side meter; is the power factor; is a constant, ranging from 0.5% to 2%; is the rated capacity of the transformer; The power of electricity theft;

[0053] In the segmented measurement scenario, four consecutive electricity theft time points are obtained from the electricity theft period. Based on the current data at the four consecutive electricity theft time points, the inverse value of the medium voltage side voltage meter, and the meter active power, the electricity theft power at the four consecutive electricity theft time points is calculated using the following formula:

[0054]

[0055]

[0056] in, is the current value flowing into the node in current data 1; is the current value of the current outflow node in current data 1; It is the inverse calculation value of the voltmeter on the medium voltage side; It is the active power of the low voltage side meter; and All are power factors; is a constant, ranging from 0.5% to 2%; is the rated capacity of the transformer; The power of electricity theft;

[0057] When two stolen electricity powers are obtained in the same electricity theft time period, the stolen electricity average power is calculated based on the total stolen electricity power;

[0058] The amount of electricity stolen during the electricity theft period is calculated based on the following formula:

[0059]

[0060] in, The amount of electricity stolen during the electricity theft period; is the average power of electricity theft; The total number of electricity theft time points in the electricity theft time period; It is the time interval between two adjacent electricity theft time points.

[0061] Preferably, the three consecutive electricity theft time points are obtained from the electricity theft time period:

[0062] Determine whether the value of n is less than or equal to N-2. When the value of n is less than or equal to N-2, obtain the nth, n+1th, and n+2th electricity theft time points, and increase the value of n by 1. When the value of n is greater than N-2, stop obtaining the electricity theft time points. The initial value of n is 1. N is the total number of electricity theft time points in the electricity theft time period.

[0063] The four consecutive electricity theft time points are obtained from the electricity theft time period:

[0064] Determine whether the value of n is less than or equal to N-3. When the value of n is less than or equal to N-3, obtain the n, n+1, n+2, and n+3 electricity theft time points, and increase the value of n by 1. When the value of n is greater than N-3, stop obtaining the electricity theft time points. The initial value of n is 1, and N is the total number of electricity theft time points in the electricity theft time period.

[0065] In a second aspect of an embodiment of the present disclosure, a device for calculating electricity theft based on a data acquisition device is provided, comprising:

[0066] The medium voltage side current actual consumption value acquisition module is configured to set a data acquisition device, collect current data 1 based on the data acquisition device, and calculate the medium voltage side current actual consumption value based on the current data 1;

[0067] The electricity theft time point determination module is configured to obtain voltage data, current data 2, and meter active power corresponding to the current data 1 collection time point based on the metering master, and calculate the medium voltage side current meter consumption value based on the current data 2; obtain the current difference between the actual medium voltage side current consumption value and the medium voltage side current meter consumption value, and determine whether the current difference is greater than a current difference threshold. When the current difference is greater than the current difference threshold, determine that the current data 1 collection time point is the electricity theft time point; when the current data 1 collection time point is the electricity theft time point, calculate the medium voltage side voltage meter inverse calculation value based on the voltage data;

[0068] The electricity theft calculation module is configured to obtain consecutive electricity theft time points as the electricity theft time period, and calculate the electricity theft amount within the electricity theft time period based on the current data at each electricity theft time point within the electricity theft time period, the inverse calculated value of the medium voltage side voltage meter, and the meter active power.

[0069] In a third aspect of an embodiment of the present disclosure, a computer program product is provided, comprising a computer program, wherein when the computer program is executed by a processor, the method provided according to the first aspect is implemented.

[0070] In a fourth aspect of an embodiment of the present disclosure, an electronic device is provided, comprising one or more processors and a memory associated with the one or more processors, wherein the memory is used to store program instructions, and when the program instructions are read and executed by the one or more processors, the method provided according to the first aspect is executed.

[0071] It should be understood that the contents described in the Summary of the Invention section are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description.

[0072] Beneficial effects

[0073] The method and device for calculating the amount of electricity stolen in the disclosed embodiments first collect current data 1 through a data acquisition device and calculate the actual current consumption value on the medium voltage side. Then, based on the total meter, current data 2 corresponding to the time point of current data 1 collection is obtained and the medium voltage side current meter consumption value is calculated. The actual current consumption value on the medium voltage side is then compared with the medium voltage side current meter consumption value to determine the time point of electricity theft. Finally, the amount of electricity stolen is calculated based on the current data 1, voltage data, and meter active power at the time point of electricity theft during the electricity theft time period. The method and device for calculating the amount of electricity theft in this embodiment can not only determine the specific time of electricity theft, but also determine the specific amount of electricity theft. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0075] Figure 1 A flow chart of a method for calculating the amount of electricity stolen based on a data acquisition device according to an embodiment of the present disclosure is shown;

[0076] Figure 2 A block diagram of a device for calculating power theft based on a data acquisition device according to an embodiment of the present disclosure is shown;

[0077] Figure 3 A block diagram of an electronic device according to an embodiment of the present disclosure is shown;

[0078] Figure 4 A schematic diagram illustrating a point-to-point measurement scenario according to an embodiment of the present disclosure is shown;

[0079] Figure 5 FIG. 4 is a schematic diagram of a segmented measurement scenario according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0080] The following describes embodiments of the present disclosure in more detail with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0081] In the description of the embodiments of the present disclosure, the term "including" and similar terms should be understood as open inclusion, that is, "including but not limited to." The term "based on" should be understood as "based at least in part on." The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment." The terms "first," "second," etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0082] Figure 1 The flowchart of the method 100 for calculating the amount of electricity stolen based on the data acquisition device according to an embodiment of the present disclosure is shown. The method 100 includes:

[0083] Step 102: Set up a data acquisition device, collect current data 1 based on the data acquisition device, and calculate the actual current consumption value on the medium voltage side based on the current data 1.

[0084] like Figure 4 As shown, if the data acquisition device is set on the household line and at the front end of the user's transformer, then this embodiment uses the data acquisition device setting method as a "point-to-point measurement scenario."

[0085] In the point-to-point measurement scenario, the current data 1 collected by the data acquisition device includes the current values ​​of phase A, phase B, and phase C. Furthermore, the actual current consumption value of the medium voltage side calculated based on the current data 1 specifically includes:

[0086] In a point-to-point measurement scenario, the actual current consumption on the medium voltage side is calculated using the following formula:

[0087]

[0088] in, is the actual current consumption value on the medium voltage side; is the current value of phase A in current data 1; is the B-phase current value in current data 1; is the C phase current value in current data 1.

[0089] In this embodiment, it is assumed that the data acquisition device collects a current data set of 1 every 10 minutes. In a point-to-point measurement scenario, if the data acquisition device collects a current data set of 1 at time T1 (including a phase A current value, a phase B current value, and a phase C current value), then the actual current consumption on the medium voltage side at time T1 is the sum of the phase A current value, the phase B current value, and the phase C current value in the current data set of 1.

[0090] like Figure 5 As shown, if the data acquisition device is set on the wire connected to the service line, then this embodiment uses the data acquisition device setting method as a "segmented measurement scenario".

[0091] In the segmented measurement scenario, multiple data acquisition devices need to be set up. Figure 5 As shown, when user 1 is the monitored object, a data acquisition device (i.e., data acquisition device 1) needs to be set at the front end of user 1's household line, and a data acquisition device (i.e., data acquisition device 2) needs to be set at the back end of user 1's household line. Data acquisition device 1 is used to collect current data 1 as the current inflow node, and the current data 1 includes the current value of phase A, the current value of phase B, and the current value of phase C; data acquisition device 2 is used to collect current data 1 as the current outflow node, and the current data 1 also includes the current value of phase A, the current value of phase B, and the current value of phase C. Furthermore, the actual current consumption value on the medium voltage side calculated based on current data 1 specifically includes:

[0092] In the segmented measurement scenario, the actual current consumption value on the medium voltage side is calculated using the following formula:

[0093]

[0094] in, is the actual current consumption value on the medium voltage side; is the A-phase current value of the current flowing into the node in current data 1; is the B-phase current value of the current flowing into the node in current data 1; is the C-phase current value of the current flowing into the node in current data 1; is the A-phase current value of the current outflow node in current data 1; is the B-phase current value of the current outflow node in current data 1; is the C-phase current value of the current outflow node in current data 1.

[0095] In this embodiment, it is assumed that the data acquisition device collects current data 1 every 10 minutes. In a segmented measurement scenario, if data acquisition device 1 collects current data 1 as a current inflow node at time T1 (including a phase A current value, a phase B current value, and a phase C current value), and data acquisition device 2 collects current data 1 as a current outflow node at time T1 (including a phase A current value, a phase B current value, and a phase C current value), then the actual current consumption value on the medium voltage side at time T1 is the sum of the phase A current value, the phase B current value, and the phase C current value in the current data 1 collected by data acquisition device 1, minus the sum of the phase A current value, the phase B current value, and the phase C current value in the current data 1 collected by data acquisition device 2.

[0096] In summary, this step can collect current data 1 through the data collection device, and can calculate the actual current consumption value of the medium voltage side at the corresponding moment through the current data 1.

[0097] Further, Figure 1 The flowchart of the method 100 for calculating the amount of electricity stolen based on the data acquisition device according to an embodiment of the present disclosure is shown. The method 100 further includes:

[0098] Step 104. The voltage data, current data 2, and meter active power corresponding to the time point of current data 1 collection are obtained based on the total meter. The medium voltage side current meter consumption value is calculated based on current data 2. The current difference between the actual medium voltage side current consumption value and the medium voltage side current meter consumption value is obtained, and a determination is made as to whether the current difference is greater than a current difference threshold. If the current difference is greater than the current difference threshold, the time point of current data 1 collection is determined to be a time point of electricity theft. If the time point of current data 1 collection is a time point of electricity theft, a medium voltage side voltage meter inverse value is calculated based on the voltage data.

[0099] The total meter (which can be understood as an electricity meter) is a pre-existing technology that records user-side voltage data, current data 2, and metered active power in real time. Assuming that current data 1 is collected at time T1 in step 102, this step uses the total meter to obtain the voltage data, current data 2, and metered active power corresponding to time T1. After collecting the voltage data, current data 2, and metered active power at time T1, the medium-voltage side current meter consumption value is calculated based on current data 2.

[0100] The current meter consumption value on the medium voltage side calculated based on the current data 2 specifically includes:

[0101] When the transformer winding is Dd connected, the following formula is used to calculate the current meter consumption value on the medium voltage side:

[0102]

[0103]

[0104]

[0105]

[0106]

[0107] in, is the current value of phase A in the obtained current data 2; is the calculated current meter consumption value of phase A on the medium voltage side; is the B-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase B on the medium voltage side; is the C-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase C on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the current meter consumption value on the medium voltage side.

[0108] When the transformer winding is Dyn connected, the following formula is used to calculate the current meter consumption value on the medium voltage side:

[0109]

[0110]

[0111]

[0112]

[0113]

[0114] in, is the current value of phase A in the obtained current data 2; is the calculated current meter consumption value of phase A on the medium voltage side; is the B-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase B on the medium voltage side; is the C-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase C on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the current meter consumption value on the medium voltage side.

[0115] In this embodiment, the Dd connection refers to a delta connection for the primary (primary) side of the transformer, and a delta connection for the secondary (secondary) side. The Dyn connection refers to a delta connection for the primary (primary) side of the transformer, and a star connection for the secondary (secondary) side. Furthermore, in this embodiment, the transformer's input is the medium voltage side, and its output is the low voltage side.

[0116] In summary, this step requires first determining the transformer winding connection method, then selecting the corresponding current calculation formula based on the different connection methods. Current Data 2 contains the current values ​​for Phase A, Phase B, and Phase C. Using the corresponding calculation formulas, we can calculate the medium-voltage side current meter consumption values ​​for Phase A, Phase B, and Phase C. Finally, summing the medium-voltage side current meter consumption values ​​for Phase A, Phase B, and Phase C yields the medium-voltage side current meter consumption value.

[0117] Once the medium-voltage side current meter consumption value at time T1 is calculated, the current difference at time T1 can be obtained by subtracting the actual medium-voltage side current consumption value from the medium-voltage side current meter consumption value at time T1. The current difference at time T1 is then compared with the current difference threshold. If the current difference is greater than the current difference threshold, the time point at which the current data was first collected (i.e., time T) is determined to be the time point of electricity theft; otherwise, time T1 is determined not to be the time point of electricity theft.

[0118] If time T1 is not the time of electricity theft, then step 104 is executed again. Assuming that step 102 collects current data 1 again at the next time (assuming it is time T2), this step will use the meter to obtain the voltage data, current data 2, and meter active power corresponding to time T2. Based on current data 2, the medium-voltage side current meter consumption value is calculated. The medium-voltage side current meter consumption value at time T2 is then subtracted from the actual medium-voltage side current consumption value at time T2 to obtain the current difference value at time T2.

[0119] If T1 is the time of electricity theft, then it is also necessary to calculate the medium voltage side voltage meter inverse value based on the voltage data at T1. The calculation of the medium voltage side voltage meter inverse value based on the voltage data specifically includes:

[0120] When the transformer winding is Dd connected, the following formula is used to calculate the inverse value of the medium voltage side voltmeter:

[0121]

[0122]

[0123]

[0124]

[0125]

[0126] in, is the A-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side A phase voltage meter; is the B-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side B phase voltage meter; is the C-phase voltage value in the obtained voltage data; is the calculated consumption value of the C-phase voltage meter on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the inverse calculated value of the voltmeter on the medium voltage side.

[0127] When the transformer winding is Dyn connected, the following formula is used to calculate the inverse value of the medium voltage side voltmeter:

[0128]

[0129]

[0130]

[0131]

[0132]

[0133] in, is the A-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side A phase voltage meter; is the B-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side B phase voltage meter; is the B-phase voltage value in the obtained voltage data; is the calculated consumption value of the C-phase voltage meter on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the inverse calculated value of the voltmeter on the medium voltage side.

[0134] In this embodiment, the Dd connection refers to a delta connection for the primary (primary) side of the transformer, and a delta connection for the secondary (secondary) side. The Dyn connection refers to a delta connection for the primary (primary) side of the transformer, and a star connection for the secondary (secondary) side. Furthermore, in this embodiment, the transformer's input is the medium voltage side, and its output is the low voltage side.

[0135] In summary, this step requires first determining the transformer winding connection method, then selecting the corresponding voltage calculation formula based on the different connection methods. The voltage data includes the voltage values ​​for phases A, B, and C. Using the corresponding calculation formulas, we can calculate the medium-voltage side voltage meter consumption values ​​for phase A, phase B, and phase C. Finally, averaging the medium-voltage side voltage meter consumption values ​​for phases A, B, and C yields the medium-voltage side voltage meter inverse value.

[0136] After the medium-voltage side voltage meter inverse calculation value at time T1 is calculated, step 104 is executed again. Assuming that step 102 collects current data 1 again at the next time (assuming it is time T2), this step will obtain the voltage data, current data 2, and meter active power corresponding to time T2 through the meter master meter. The medium-voltage side current meter consumption value is calculated based on current data 2. The medium-voltage side current meter consumption value at time T2 is then subtracted from the actual medium-voltage side current consumption value at time T2 to obtain the current difference value at time T2.

[0137] In short, by continuously repeating step 104, it is possible to determine: whether time T1 is the time of electricity theft; whether time T2 is the time of electricity theft; whether time T3 is the time of electricity theft; whether time T4 is the time of electricity theft; whether time T5 is the time of electricity theft; whether time T6 is the time of electricity theft, etc.

[0138] In addition, in this step, the current difference threshold is calculated using the following formula:

[0139]

[0140] in, is the current difference threshold; It is the actual current consumption value on the medium voltage side.

[0141] Further, Figure 1 The flowchart of the method 100 for calculating the amount of electricity stolen based on the data acquisition device according to an embodiment of the present disclosure is shown. The method 100 further includes:

[0142] Step 106: Obtain consecutive electricity theft time points as the electricity theft time period, and calculate the amount of electricity theft in the electricity theft time period based on the current data 1 at each electricity theft time point in the electricity theft time period, the medium voltage side voltage meter inverse calculation value, and the meter active power.

[0143] Assume that step 104 obtains the following results: time t11 (non-electricity theft time point), time t12 (non-electricity theft time point), time t13 (non-electricity theft time point), time T1 (electricity theft time point), time T2 (electricity theft time point), time T3 (electricity theft time point), time T4 (electricity theft time point), time T5 (electricity theft time point), time t21 (non-electricity theft time point), time t22 (non-electricity theft time point), and so on.

[0144] Then, this step can obtain a power theft time period, that is, from time T1 to time t21.

[0145] Assuming the current data, medium voltage meter reverse calculation value, and meter active power at times T1, T2, T3, T4, and T5 are already known, the amount of electricity stolen during the theft period can be calculated using these data.

[0146] Specifically, the amount of electricity stolen during the electricity theft period is calculated based on the current data at each electricity theft time point, the inverse calculated value of the medium voltage side voltage meter, and the meter active power. Specifically, the amount of electricity stolen during the electricity theft period includes:

[0147] Step 402: In a point-to-point measurement scenario, obtain three consecutive electricity theft time points from the electricity theft time period, and calculate the electricity theft power at the three consecutive electricity theft time points based on the current data 1, the medium voltage side voltage meter inverse calculation value, and the meter active power using the following formula:

[0148]

[0149]

[0150] in, is the actual current consumption value on the medium voltage side; It is the inverse calculation value of the voltmeter on the medium voltage side; It is the active power of the low voltage side meter; is the power factor; is a constant, ranging from 0.5% to 2%; is the rated capacity of the transformer; The actual current consumption value on the medium voltage side is It can be directly calculated from the current data.

[0151] It should have been ,in is the actual power consumption, is the active power consumed, is the meter active power, is the active power loss of the transformer, is the power of electricity theft. , is the actual consumption value of the medium voltage side voltage, but due to It is troublesome to measure, and and The value is the same, so use it directly Alternative and use Alternative , and then divided by We get the formula This formula has two unknowns. and , so the data of three consecutive electricity theft time points can be calculated and The value of Furthermore, ,when and Once you know it, you can get the power of electricity theft value.

[0152] In addition, three consecutive electricity theft time points are obtained from the electricity theft time period:

[0153] Determine whether the value of n is less than or equal to N-2. When the value of n is less than or equal to N-2, obtain the n, n+1, and n+2 electricity theft time points, and increase the value of n by 1. When the value of n is greater than N-2, stop obtaining the electricity theft time points. The initial value of n is 1, and N is the total number of electricity theft time points in the electricity theft time period.

[0154] Assume that during a certain electricity theft period, there are current data at times T1, T2, T3, T4, and T5, the inverse calculated value of the medium voltage meter, and the metered active power. In this case, N is 5.

[0155] When step 402 is executed for the first time, n is 1, which is less than 3. Therefore, the first, second, and third electricity theft time points (i.e., T1, T2, and T3) are obtained. Then, the first electricity theft power is calculated based on the current data at T1, T2, and T3, the inverse calculated value of the medium voltage meter, and the meter's active power. Then, n is changed to 2.

[0156] When step 402 is executed for the second time, n is 2, which is less than 3. Therefore, the second, third, and fourth electricity theft time points (i.e., T2, T3, and T4) are obtained. Then, based on the current data at T2, T3, and T4, the inverse calculated value of the medium voltage meter, and the meter's active power, the second electricity theft power is calculated. Then, n becomes 3.

[0157] When step 402 is executed for the third time, n is 3. Therefore, the third, fourth, and fifth electricity theft time points (i.e., T3, T4, and T5) are obtained. The third electricity theft power is then calculated based on the current data at T3, T4, and T5, the inverse calculated value of the medium voltage meter, and the meter's active power. Then, n becomes 4.

[0158] When step 402 is executed for the fourth time, n is 4, which is greater than 3, and the acquisition of the electricity theft time point is stopped, and step 402 is exited. Finally, 3 electricity theft powers are obtained.

[0159] Step 404. In the segmented measurement scenario, four consecutive electricity theft time points are obtained from the electricity theft time period, and the electricity theft power at the four consecutive electricity theft time points is calculated based on the current data 1, the medium voltage side voltage meter inverse calculation value, and the meter active power using the following formula:

[0160]

[0161]

[0162] in, is the current value flowing into the node in current data 1; is the current value of the current outflow node in current data 1; It is the inverse calculation value of the voltmeter on the medium voltage side; It is the active power of the low voltage side meter; and All are power factors; is a constant, ranging from 0.5% to 2%; is the rated capacity of the transformer; The power of electricity theft.

[0163] It should have been ,in is the actual power consumed by the current flowing into the node, is the actual power consumed by the node where the current flows out, is the active power consumed by the current flowing into the node, is the active power consumed by the current flowing out of the node, is the meter active power, is the active power loss of the transformer, is the power of electricity theft. , , is the actual voltage consumption value at the node where the current flows into, is the actual voltage consumption value at the current outflow node, but due to and It is troublesome to measure, and 、 and The value is the same, so use it directly Alternative 、 and use Alternative , and then divided by We get the formula This formula has three unknowns. 、 and , so the data of four consecutive electricity theft time points can be calculated 、 and The value of Furthermore, ,when and Once you know it, you can get the power of electricity theft value.

[0164] In addition, four consecutive electricity theft time points are obtained from the electricity theft time period:

[0165] Determine whether the value of n is less than or equal to N-3. When the value of n is less than or equal to N-3, obtain the n, n+1, n+2, and n+3 electricity theft time points, and increase the value of n by 1. When the value of n is greater than N-3, stop obtaining the electricity theft time points. The initial value of n is 1, and N is the total number of electricity theft time points in the electricity theft time period.

[0166] Assume that during a certain electricity theft period, there are current data at times T1, T2, T3, T4, and T5, the inverse calculated value of the medium voltage meter, and the metered active power. In this case, N is 5.

[0167] When step 404 is executed for the first time, n is 1, which is less than 2. Therefore, the first, second, third, and fourth electricity theft time points (i.e., T1, T2, T3, and T4) are obtained. The first electricity theft power is then calculated based on the current data at T1, T2, T3, and T4, the inverse calculated value of the medium voltage meter, and the meter's active power. Then, n is changed to 2.

[0168] When step 404 is executed for the second time, n is 2. Therefore, the second, third, fourth, and fifth electricity theft time points (i.e., T2, T3, T4, and T5) are obtained. The second electricity theft power is then calculated based on the current data at T2, T3, T4, and T5, the inverse calculated value of the medium voltage meter, and the meter's active power. Then, n is changed to 3.

[0169] When step 402 is executed for the third time, n is 3, which is greater than 2, and the acquisition of the electricity theft time point is stopped, and step 404 is exited. Finally, 2 electricity theft powers are obtained.

[0170] In summary, in a point-to-point measurement scenario, the total stolen power within a stealing time period is calculated by continuously executing step 402. In a segmented measurement scenario, the total stolen power within a stealing time period is calculated by continuously executing step 404. Once the total stolen power within a stealing time period is calculated, the process proceeds to step 406.

[0171] Step 406: When two stolen power values ​​are obtained in the same stolen power time period, the stolen power average power is calculated based on all stolen power values. This step only requires calculating the average value of all stolen power values ​​to obtain the stolen power average power.

[0172] Step 408: Calculate the amount of electricity stolen during the electricity theft period based on the following formula:

[0173]

[0174] in, The amount of electricity stolen during the electricity theft period; is the average power of electricity theft; The total number of electricity theft time points in the electricity theft time period; It is the time interval between two adjacent electricity theft time points.

[0175] In this step, The amount of electricity stolen in the same electricity theft time period only needs to be multiplied by the average power of electricity stolen in the electricity theft time period, the total number of electricity theft time points, and the time interval between two adjacent electricity theft time points.

[0176] Assuming there are three electricity theft periods in a day, the total electricity theft amount for the day is the sum of the three electricity theft periods.

[0177] Figure 2 The block diagram of the power theft calculation device 200 based on the data acquisition device according to an embodiment of the present disclosure is shown. The device 200 includes:

[0178] The medium voltage side current actual consumption value acquisition module 202 is configured to set a data acquisition device, collect current data 1 based on the data acquisition device, and calculate the medium voltage side current actual consumption value based on the current data 1;

[0179] The electricity theft time point determination module 204 is configured to obtain voltage data, current data 2, and meter active power corresponding to the time point of current data 1 collection based on the meter master, and calculate the medium voltage side current meter consumption value based on current data 2; obtain the current difference between the actual medium voltage side current consumption value and the medium voltage side current meter consumption value, and determine whether the current difference is greater than a current difference threshold. If the current difference is greater than the current difference threshold, determine that the current data 1 collection time point is the electricity theft time point; if the current data 1 collection time point is the electricity theft time point, calculate the medium voltage side voltage meter inverse calculation value based on the voltage data;

[0180] The stolen electricity amount calculation module 206 is configured to obtain consecutive electricity theft time points as the electricity theft time period, and calculate the stolen electricity amount within the electricity theft time period based on the current data 1 at each electricity theft time point within the electricity theft time period, the medium voltage side voltage meter inverse calculation value, and the meter active power.

[0181] Furthermore, the medium voltage side current actual consumption value acquisition module 202 in this embodiment specifically includes:

[0182] The first medium voltage side current actual consumption value obtaining unit is configured to calculate the medium voltage side current actual consumption value by the following formula in a point-to-point measurement scenario:

[0183]

[0184] in, is the actual current consumption value on the medium voltage side; is the current value of phase A in current data 1; is the B-phase current value in current data 1; is the C phase current value in current data 1.

[0185] The second medium voltage side current actual consumption value obtaining unit is configured to calculate the medium voltage side current actual consumption value by the following formula in the segmented measurement scenario:

[0186]

[0187] in, is the actual current consumption value on the medium voltage side; is the A-phase current value of the current flowing into the node in current data 1; is the B-phase current value of the current flowing into the node in current data 1; is the C-phase current value of the current flowing into the node in current data 1; is the A-phase current value of the current outflow node in current data 1; is the B-phase current value of the current outflow node in current data 1; is the C-phase current value of the current outflow node in current data 1.

[0188] Furthermore, the electricity theft time point determination module 204 in this embodiment specifically includes:

[0189] The first medium voltage side voltmeter inverse calculation value unit is configured to calculate the medium voltage side voltmeter inverse calculation value using the following formula when the transformer winding is Dd connection:

[0190]

[0191]

[0192]

[0193]

[0194]

[0195] in, is the A-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side A phase voltage meter; is the B-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side B phase voltage meter; is the C-phase voltage value in the obtained voltage data; is the calculated consumption value of the C-phase voltage meter on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the inverse calculated value of the voltmeter on the medium voltage side.

[0196] The second medium voltage side voltmeter inverse value unit is configured to calculate the medium voltage side voltmeter inverse value using the following formula when the transformer winding is Dyn connection:

[0197]

[0198]

[0199]

[0200]

[0201]

[0202] in, is the A-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side A phase voltage meter; is the B-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side B phase voltage meter; is the C-phase voltage value in the obtained voltage data; is the calculated consumption value of the C-phase voltage meter on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the inverse calculated value of the voltmeter on the medium voltage side.

[0203] The first medium-voltage side current meter consumption value unit is configured to calculate the medium-voltage side current meter consumption value using the following formula when the transformer winding is Dd connected:

[0204]

[0205]

[0206]

[0207]

[0208]

[0209] in, is the current value of phase A in the obtained current data 2; is the calculated current meter consumption value of phase A on the medium voltage side; is the B-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase B on the medium voltage side; is the C-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase C on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the current meter consumption value on the medium voltage side.

[0210] The second medium voltage side current meter consumption value unit is configured to calculate the medium voltage side current meter consumption value using the following formula when the transformer winding is Dyn connection:

[0211]

[0212]

[0213]

[0214]

[0215]

[0216] in, is the current value of phase A in the obtained current data 2; is the calculated current meter consumption value of phase A on the medium voltage side; is the B-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase B on the medium voltage side; is the C-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase C on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the current meter consumption value on the medium voltage side.

[0217] The current difference threshold calculation unit is configured such that the current difference threshold is calculated using the following formula:

[0218]

[0219] in, is the current difference threshold; It is the actual current consumption value on the medium voltage side.

[0220] Furthermore, the power theft calculation module 206 in this embodiment specifically includes:

[0221] The first electricity theft power calculation unit is configured to obtain three consecutive electricity theft time points from the electricity theft time period in a point-to-point measurement scenario, and calculate the electricity theft power at the three consecutive electricity theft time points based on the current data 1, the medium voltage side voltage meter inverse calculation value, and the meter active power using the following formula:

[0222]

[0223]

[0224] in, is the actual current consumption value on the medium voltage side; It is the inverse calculation value of the voltmeter on the medium voltage side; It is the active power of the low voltage side meter; is the power factor; is a constant, ranging from 0.5% to 2%; is the rated capacity of the transformer; The power of electricity theft.

[0225] The second electricity theft power calculation unit is configured to obtain four consecutive electricity theft time points from the electricity theft time period in a segmented measurement scenario, and calculate the electricity theft power at the four consecutive electricity theft time points based on the current data 1, the medium voltage side voltage meter inverse calculation value, and the meter active power using the following formula:

[0226]

[0227]

[0228] in, is the current value flowing into the node in current data 1; is the current value of the current outflow node in current data 1; It is the inverse calculation value of the voltmeter on the medium voltage side; It is the active power of the low voltage side meter; and All are power factors; is a constant, ranging from 0.5% to 2%; is the rated capacity of the transformer; The power of electricity theft.

[0229] The electricity theft average power calculation unit is configured to calculate the electricity theft average power based on all the electricity theft powers when two electricity theft powers are obtained in the same electricity theft time period.

[0230] The stolen electricity amount calculation unit is configured to calculate the stolen electricity amount within the electricity theft period based on the following formula:

[0231]

[0232] in, The amount of electricity stolen during the electricity theft period; is the average power of electricity theft; The total number of electricity theft time points in the electricity theft time period; It is the time interval between two adjacent electricity theft time points.

[0233] Furthermore, the first electricity theft power calculation unit includes:

[0234] The first continuous electricity theft time point acquisition subunit is configured to determine whether the value of n is less than or equal to N-2. When the value of n is less than or equal to N-2, the n, n+1 and n+2 electricity theft time points are acquired and the value of n is increased by 1; when the value of n is greater than N-2, the acquisition of electricity theft time points is stopped. The initial value of n is 1, and N is the total number of electricity theft time points in the electricity theft time period.

[0235] The second electricity stealing power calculation unit includes:

[0236] The second continuous electricity theft time point acquisition subunit is configured to determine whether the value of n is less than or equal to N-3. When the value of n is less than or equal to N-3, the n, n+1, n+2 and n+3 electricity theft time points are acquired, and the value of n is increased by 1; when the value of n is greater than N-3, the acquisition of electricity theft time points is stopped; wherein the initial value of n is 1; and N is the total number of electricity theft time points in the electricity theft time period.

[0237] Figure 3 A block diagram of an electronic device 300 according to some embodiments of the present disclosure is shown. The device 300 includes a processor 301, which can perform various appropriate actions and processes based on computer program instructions stored in a read-only memory (ROM) 302 and loaded into a random access memory (RAM) 303. RAM 303 may also store various programs and data required for the operation of the device 300. The processor 301, ROM 302, and RAM 303 are interconnected via a bus 304. An input / output (I / O) interface 305 is also connected to the bus 304.

[0238] The various processes and procedures described above, such as method 100, may be executed by processor 301. For example, in some embodiments, method 100 may be implemented as a software program tangibly embodied on a machine-readable medium. In some embodiments, part or all of the software program may be loaded and / or installed onto device 300 via ROM 302. When the software program is loaded into RAM 303 and executed by processor 301, one or more actions of method 100 described above may be performed.

[0239] The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system on chip systems (SOCs), programmable logic devices (CPLDs), and the like.

[0240] The program code for implementing the method of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0241] The present disclosure may be a method, apparatus, system and / or program product. The program product may include a machine-readable storage medium on which are loaded machine-readable program instructions for executing various aspects of the present disclosure. The machine-readable program instructions described herein may be downloaded from the machine-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network and / or a wireless network. The network may include copper transmission cables, optical fiber transmission, wireless transmission, routers, firewalls, switches, gateway computers and / or edge servers. The network adapter card or network interface in each computing / processing device receives the machine-readable program instructions from the network and forwards the machine-readable program instructions for storage in the machine-readable storage medium in each computing / processing device.

[0242] The machine program instructions for performing the operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The machine-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, the state information of the machine-readable program instructions is used to personalize an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), so that the electronic circuit can execute the machine-readable program instructions, thereby implementing various aspects of the present disclosure.

[0243] In the context of this disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media may include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. Furthermore, although operations are depicted in a particular order, this should be understood as requiring that such operations be performed in the particular order shown or in a sequential order, or that all illustrated operations be performed to achieve the desired result. In certain circumstances, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be interpreted as limiting the scope of this disclosure. Certain features described in the context of a separate embodiment can also be implemented in combination in a single embodiment. Conversely, the various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination.

[0244] Although the subject matter has been described in language specific to structural features and / or methodological logical acts, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are merely example forms of implementing the claims.

Claims

1. A method for calculating electricity theft based on a data acquisition device, characterized in that: include: Setting a data acquisition device, collecting current data 1 based on the data acquisition device, and calculating the actual current consumption value of the medium voltage side based on the current data 1; obtaining voltage data, current data 2, and meter active power corresponding to a current data 1 collection time point based on the total meter, and calculating a medium voltage side current meter consumption value based on the current data 2; obtaining a current difference between an actual medium voltage side current consumption value and a medium voltage side current meter consumption value, and determining whether the current difference is greater than a current difference threshold; and determining that the current data 1 collection time point is a power theft time point when the current difference is greater than the current difference threshold; When the current data is collected at a time point corresponding to the electricity theft, a medium voltage side voltage meter inverse calculation value is obtained based on the voltage data; The continuous electricity theft time points are obtained as the electricity theft time period, and the amount of electricity theft in the electricity theft time period is calculated based on the current data of each electricity theft time point in the electricity theft time period, the inverse calculated value of the medium voltage side voltage meter, and the meter active power.

2. The method according to claim 1, characterized in that The actual current consumption value of the medium voltage side calculated based on the current data 1 specifically includes: In a point-to-point measurement scenario, the actual current consumption on the medium voltage side is calculated using the following formula: ， in, is the actual current consumption value on the medium voltage side; is the current value of phase A in current data 1; is the B-phase current value in current data 1; is the C-phase current value in current data 1; In the segmented measurement scenario, the actual current consumption value on the medium voltage side is calculated using the following formula: ， in, is the actual current consumption value on the medium voltage side; is the A-phase current value of the current flowing into the node in current data 1; is the B-phase current value of the current flowing into the node in current data 1; is the C-phase current value of the current flowing into the node in current data 1; is the A-phase current value of the current outflow node in current data 1; is the B-phase current value of the current outflow node in current data 1; is the C-phase current value of the current outflow node in current data 1.

3. The method according to claim 2, characterized in that The current difference threshold is calculated by the following formula: ， in, is the current difference threshold; It is the actual current consumption value on the medium voltage side.

4. The method according to claim 1, wherein The inverse calculation value of the medium voltage side voltage meter calculated based on the voltage data specifically includes: When the transformer winding is Dd connected, the following formula is used to calculate the inverse value of the medium voltage side voltmeter: ， ， ， ， ， in, is the A-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side A phase voltage meter; is the B-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side B phase voltage meter; is the C-phase voltage value in the obtained voltage data; is the calculated consumption value of the C-phase voltage meter on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the inverse calculation value of the voltmeter on the medium voltage side; When the transformer winding is Dyn connected, the following formula is used to calculate the inverse value of the medium voltage side voltmeter: ， ， ， ， ， in, is the A-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side A phase voltage meter; is the B-phase voltage value in the obtained voltage data; is the calculated consumption value of the medium voltage side B phase voltage meter; is the C-phase voltage value in the obtained voltage data; is the calculated consumption value of the C-phase voltage meter on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the inverse calculated value of the voltmeter on the medium voltage side.

5. The method according to claim 1, wherein The current meter consumption value on the medium voltage side calculated based on the second current data specifically includes: When the transformer winding is Dd connected, the following formula is used to calculate the current meter consumption value on the medium voltage side: ， ， ， ， ， in, is the current value of phase A in the obtained current data 2; is the calculated current meter consumption value of phase A on the medium voltage side; is the B-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase B on the medium voltage side; is the C-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase C on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; is the current meter consumption value on the medium voltage side; When the transformer winding is Dyn connected, the following formula is used to calculate the current meter consumption value on the medium voltage side: ， ， ， ， ， in, is the current value of phase A in the obtained current data 2; is the calculated current meter consumption value of phase A on the medium voltage side; is the B-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase B on the medium voltage side; is the C-phase current value in the obtained current data 2; is the calculated current meter consumption value of phase C on the medium voltage side; is the rated voltage on the medium voltage side; is the rated voltage of the low voltage side; It is the current meter consumption value on the medium voltage side.

6. The method according to claim 1, characterized in that The amount of electricity stolen during the electricity theft period is calculated based on the current data 1 at each electricity theft time point, the inverse calculated value of the medium voltage side voltage meter, and the meter active power. Specifically, the amount of electricity stolen during the electricity theft period includes: In the point-to-point measurement scenario, three consecutive electricity theft time points are obtained from the electricity theft time period, and the electricity theft power at the three consecutive electricity theft time points is calculated based on the current data 1, the medium voltage side voltage meter inverse calculation value, and the meter active power using the following formula: ， ， in, is the actual current consumption value on the medium voltage side; It is the inverse calculation value of the voltmeter on the medium voltage side; It is the active power of the low voltage side meter; is the power factor; is a constant, ranging from 0.5% to 2%; is the rated capacity of the transformer; The power of electricity theft; In the segmented measurement scenario, four consecutive electricity theft time points are obtained from the electricity theft time period, and the electricity theft power at the four consecutive electricity theft time points is calculated based on the current data 1, the medium voltage side voltage meter inverse calculation value, and the meter active power using the following formula: ， ， in, is the current value flowing into the node in current data 1; is the current value of the current outflow node in current data 1; It is the inverse calculation value of the voltmeter on the medium voltage side; It is the active power of the low voltage side meter; and All are power factors; is a constant, ranging from 0.5% to 2%; is the rated capacity of the transformer; The power of electricity theft; When two stolen electricity powers are obtained in the same electricity theft time period, the stolen electricity average power is calculated based on the total stolen electricity power; The amount of electricity stolen during the electricity theft period is calculated based on the following formula: ， in, The amount of electricity stolen during the electricity theft period; is the average power of electricity theft; The total number of electricity theft time points in the electricity theft time period; It is the time interval between two adjacent electricity theft time points.

7. The method according to claim 6, characterized in that The three consecutive electricity theft time points are obtained from the electricity theft time period: Determine whether the value of n is less than or equal to N-2. When the value of n is less than or equal to N-2, obtain the nth, n+1th, and n+2th electricity theft time points, and increase the value of n by 1. When the value of n is greater than N-2, stop obtaining the electricity theft time points. The initial value of n is 1. N is the total number of electricity theft time points in the electricity theft time period. The four consecutive electricity theft time points are obtained from the electricity theft time period: Determine whether the value of n is less than or equal to N-3. When the value of n is less than or equal to N-3, obtain the n, n+1, n+2, and n+3 electricity theft time points, and increase the value of n by 1. When the value of n is greater than N-3, stop obtaining the electricity theft time points. The initial value of n is 1, and N is the total number of electricity theft time points in the electricity theft time period.

8. A device for calculating electricity theft based on a data acquisition device, characterized in that: include: a module for obtaining the actual current consumption value on the medium voltage side, configured to set a data acquisition device, collect current data 1 based on the data acquisition device, and calculate the actual current consumption value on the medium voltage side based on the current data 1; The electricity theft time point determination module is configured to obtain voltage data, current data 2, and meter active power corresponding to a current data 1 collection time point based on the metering master, and calculate a medium voltage side current meter consumption value based on the current data 2; obtain a current difference between an actual medium voltage side current consumption value and a medium voltage side current meter consumption value, and determine whether the current difference is greater than a current difference threshold; when the current difference is greater than the current difference threshold, determine that the current data 1 collection time point is an electricity theft time point; When the current data is collected at a time point corresponding to the electricity theft, a medium voltage side voltage meter inverse calculation value is obtained based on the voltage data; The electricity theft calculation module is configured to obtain consecutive electricity theft time points as the electricity theft time period, and calculate the amount of electricity theft in the electricity theft time period based on the current data at each electricity theft time point in the electricity theft time period, the inverse calculated value of the medium voltage side voltage meter, and the meter active power.

9. A computer program product, characterized in that The invention comprises a computer program, which implements the steps of the method according to any one of claims 1 to 7 when the computer program is executed by a processor.

10. An electronic device, characterized in that: include: One or more processors, and a memory associated with the one or more processors, the memory being used to store program instructions, wherein the program instructions, when read and executed by the one or more processors, execute the steps of the method according to any one of claims 1 to 7.

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