Wiring circuit connection judgment method and device after replacement of electric energy meter and electronic equipment

Abstract

The invention discloses a wiring line connection judgment method and device after replacement of an electric energy meter and electronic equipment. The method comprises the following steps: acquiring primary side power supply data of a to-be-tested wiring loop in a power dispatching automation system within a first preset time interval; wherein the primary side power supply data comprises a primary side current average value or a primary side power average value; obtaining secondary side power supply data of a to-be-measured wiring loop in the metering automation system in a first preset time interval, and determining a secondary side power average value of the metering automation system according to the secondary side power supply data; wherein the secondary side power supply data comprises secondary side active power and a measurement point conversion rate; determining a secondary side power conversion value of the power dispatching automation system according to the primary side power supply data and the measurement point conversion rate; and according to the secondary side power average value and the secondary side power conversion value, judging whether the wiring circuit connection is correct after the electric energy meter is replaced. According to the invention, the efficiency of verifying whether the electric energy meter wiring circuit connection is correct is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meter wiring connection, and in particular to a method, a device and an electronic device for determining the connection of a wiring line after an electric energy meter is replaced. Background Art

[0002] In recent years, the increase in people's electricity demand, the increase in enterprises' requirements for dedicated power supply, and the rapid development of domestic electricity market transactions have posed severe challenges to the accurate measurement of electricity meters. On the one hand, there are requirements for the cost control and demand functions of electricity meters, and it is necessary to replace them with electricity meters that meet the requirements; on the other hand, there is a need to regularly rotate the electricity meters in plants and stations for life cycle control and status monitoring. Therefore, the replacement of electricity meters is one of the important tasks of electricity metering in plants and stations.

[0003] After the energy meter is replaced, if there is a wiring error, it will cause the energy meter to calculate the electricity incorrectly, which will cause huge losses to users or power supply companies and affect the electricity consumption and power supply experience. In the prior art, in order to verify whether the wiring is correct after the energy meter is replaced, the voltage, current and phase angle data of the energy meter are generally measured, and a hexagonal diagram is drawn based on this. The amplitude and phase angle relationship of the voltage and current on the hexagonal diagram is used to determine whether the wiring after the energy meter is replaced is correct. However, the judgment process is relatively complicated and the judgment efficiency is low. Summary of the invention

[0004] The present invention provides a method, a device and an electronic device for determining the connection of a wiring line after an electric energy meter is replaced, so as to improve the efficiency of verifying whether the connection of the wiring line of the electric energy meter is correct.

[0005] According to one aspect of the present invention, a method for determining the connection of a wiring line after an electric energy meter is replaced is provided. The method for determining the connection of a wiring line after an electric energy meter is replaced comprises:

[0006] Acquire the primary side power supply data of the wiring loop to be tested in the electric power dispatching automation system within a first preset time interval; wherein the primary side power supply data includes the primary side current average value or the primary side power average value;

[0007] Acquire the secondary side power supply data of the wiring loop to be tested in the metering automation system within a first preset time interval, and determine the secondary side power average value of the metering automation system according to the secondary side power supply data; wherein the secondary side power supply data includes the secondary side active power and the measurement point conversion factor;

[0008] Determine the secondary side power conversion value of the power dispatching automation system based on the primary side power supply data and the measurement point conversion multiple;

[0009] Determine whether the wiring circuit connection is correct after the electric energy meter is replaced based on the secondary side power average value and the secondary side power conversion value.

[0010] Furthermore, the secondary side power conversion value of the electric power dispatching automation system is determined according to the primary side power supply data and the measurement point conversion ratio, including:

[0011] If the primary side power supply data only includes the primary side power average value, the primary side power average value is divided by the power conversion factor in the measurement point conversion factor to determine the secondary side power conversion value of the electric power dispatching automation system.

[0012] Furthermore, the secondary side power conversion value of the electric power dispatching automation system is determined according to the primary side power supply data and the measurement point conversion ratio, including:

[0013] If the primary side power supply data only includes the primary side current average value, the primary side current average value is divided by the current conversion factor in the measurement point conversion factor to determine the secondary side current conversion value of the power dispatching automation system;

[0014] The secondary side voltage average value and the total power factor average value of the wiring circuit to be tested in the metering automation system within the first preset time interval are obtained, and the secondary side power conversion value of the power dispatching automation system is determined according to the secondary side current conversion value, the secondary side voltage average value and the total power factor average value.

[0015] Further, obtaining the average secondary side voltage and the average total power factor of the wiring loop to be tested in the metering automation system within the first preset time interval, and determining the secondary side power conversion value of the power dispatching automation system according to the secondary side current conversion value, the average secondary side voltage and the average total power factor, including:

[0016] The secondary side voltage average value and the total power factor average value of the wiring circuit to be tested in the metering automation system within the first preset time interval are obtained, and it is determined whether the wiring method of the wiring circuit to be tested is a three-phase four-wire wiring method. The secondary side power conversion value of the electric power dispatching automation system is determined according to the judgment result, the secondary side current conversion value, the secondary side voltage average value and the total power factor average value.

[0017] Further, judging whether the connection of the wiring line after the electric energy meter is replaced is correct according to the secondary side power average value and the secondary side power conversion value, and then including:

[0018] Determine the secondary side active energy in the power dispatching automation system according to the secondary side power conversion value;

[0019] Determine the interval active energy in the first preset time interval in the metering automation system, and judge whether the wiring line connection is correct after the electric energy meter is replaced based on the secondary side active energy and the interval active energy.

[0020] Further, judging whether the connection of the wiring line after the electric energy meter is replaced is correct according to the secondary side power average value and the secondary side power conversion value, including:

[0021] The secondary side power difference is determined by subtracting the secondary side power conversion value from the secondary side power average value, and the secondary side power difference is compared with the preset power difference. Based on the comparison result, it is determined whether the wiring line connection is correct after the electric energy meter is replaced.

[0022] According to another aspect of the present invention, a device for determining the connection of a wiring line after replacement of an electric energy meter is provided, the device comprising:

[0023] A primary side power supply data acquisition module is used to acquire the primary side power supply data of the wiring loop to be tested in the power dispatching automation system within a first preset time interval; wherein the primary side power supply data includes the primary side current average value or the primary side power average value;

[0024] A secondary side power average value determination module is used to obtain the secondary side power supply data of the wiring loop to be tested in the metering automation system within a first preset time interval, and determine the secondary side power average value of the metering automation system according to the secondary side power supply data; wherein the secondary side power supply data includes the secondary side active power and the measurement point conversion multiple;

[0025] A secondary side power conversion value determination module is used to determine the secondary side power conversion value of the power dispatching automation system according to the primary side power supply data and the measurement point conversion multiple;

[0026] The wiring line connection judgment module is used to judge whether the wiring line connection is correct after the electric energy meter is replaced according to the secondary side power average value and the secondary side power conversion value.

[0027] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0028] at least one processor; and

[0029] a memory communicatively connected to the at least one processor; wherein,

[0030] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for determining the connection of a wiring line after the electric energy meter is replaced as described in any embodiment of the present invention.

[0031] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the connection of a wiring line after an electric energy meter is replaced as described in any embodiment of the present invention when executed.

[0032] According to another aspect of the present invention, a computer program product is provided. The computer program product includes a computer program. When the computer program is executed by a processor, the method for determining the connection of a wiring line after replacing an electric energy meter according to any embodiment of the present invention is implemented.

[0033] The method for determining the connection of a wiring line after an electric energy meter is replaced provided in an embodiment of the present invention obtains primary power supply data of a wiring circuit to be tested in an electric power dispatching automation system within a first preset time interval, obtains secondary power supply data of a wiring circuit to be tested in a metering automation system within a first preset time interval, and determines the secondary power average value of the metering automation system according to the secondary power supply data, determines the secondary power conversion value of the electric power dispatching automation system according to the primary power supply data and the measurement point conversion factor, and determines whether the connection of the wiring line after the electric energy meter is replaced is correct according to the secondary power average value and the secondary power conversion value. Compared with the prior art in which the staff uses an electricity inspection instrument to perform hexagonal diagram measurement, the work flow of the staff is reduced, and the efficiency of verifying whether the connection of the electric energy meter wiring line is correct is improved. At the same time, the present invention does not require the staff to go to the site for processing, thereby reducing the safety risks of the staff.

[0034] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 is a flow chart of a method for determining connection of a wiring line after an electric energy meter is replaced according to an embodiment of the present invention;

[0037] Figure 2 is a flow chart of another method for determining connection of a wiring line after replacement of an electric energy meter provided in an embodiment of the present invention;

[0038] Figure 3 It is a structural schematic diagram of a device for determining connection of a wiring line after replacement of an electric energy meter provided in accordance with an embodiment of the present invention;

[0039] Figure 4 A schematic diagram of the structure of an electronic device that can be used to implement an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0042] The embodiment of the present invention provides a method for determining the connection of a wiring line after an electric energy meter is replaced. Figure 1 is a flow chart of a method for determining the connection of a wiring line after an electric energy meter is replaced according to an embodiment of the present invention, with reference to Figure 1 , the connection judgment method of the wiring line after the electric energy meter is replaced includes:

[0043] S110, obtaining primary side power supply data of the wiring loop to be tested in the electric power dispatching automation system within a first preset time interval; wherein the primary side power supply data includes a primary side current average value or a primary side power average value.

[0044] Specifically, after the electric energy meter is replaced, it is necessary to detect the wiring circuit after the replacement of the electric energy meter, that is, to detect the wiring circuit to be tested. At this time, it is necessary to obtain the primary side power supply data of the wiring circuit to be tested within the first preset time interval from the power dispatching automation system, wherein the first preset time interval can be 24 consecutive hours, illustratively, it can be the time interval from zero o'clock of the previous day to zero o'clock of the detection day. The primary side current average value can be understood as the average value of multiple groups of currents on the high-voltage side of the power system within the first preset time interval. The primary side power average value can be understood as the average value of multiple groups of power on the high-voltage side of the power system within the first preset time interval.

[0045] S120, obtaining secondary side power supply data of the wiring loop to be tested in the metering automation system within a first preset time interval, and determining the secondary side power average value of the metering automation system according to the secondary side power supply data; wherein the secondary side power supply data includes the secondary side active power and the measurement point conversion factor.

[0046] Specifically, after obtaining the primary power supply data of the wiring circuit to be tested within the first preset time interval from the power dispatching automation system, it is also necessary to obtain the secondary active power of the wiring circuit to be tested within the first preset time interval from the metering automation system. For example, the secondary active power can be obtained once every 15 minutes within the first preset time interval, and the average value of the acquired multiple groups of secondary active power is calculated to determine the secondary power average value of the metering automation system. Among them, the secondary active power can be understood as the active power on the low-voltage side of the power system, and the secondary power average value can be understood as the average value of multiple groups of active power on the low-voltage side of the power system within the first preset time interval. The measurement point conversion factor includes a power conversion factor and a current conversion factor. For example, the power conversion factor can be understood as the conversion factor of the active power on the high-voltage side of the power system into the active power on the low-voltage side, and the current conversion factor can be understood as the conversion factor of the current on the high-voltage side of the power system into the current on the low-voltage side.

[0047] S130. Determine the secondary side power conversion value of the electric power dispatching automation system according to the primary side power supply data and the measurement point conversion factor.

[0048] Specifically, if the primary-side power supply data only includes the primary-side power average value, the primary-side power average value is divided by the power conversion factor in the measurement point conversion factor to determine the secondary-side power conversion value of the power dispatching automation system; if the primary-side power supply data only includes the primary-side current average value, the primary-side current average value is divided by the current conversion factor in the measurement point conversion factor to determine the secondary-side current conversion value of the power dispatching automation system, obtain the secondary-side voltage average value and the total power factor average value of the wiring circuit to be measured in the metering automation system within the first preset time interval, and determine the secondary-side power conversion value of the power dispatching automation system based on the secondary-side current conversion value, the secondary-side voltage average value and the total power factor average value. Among them, the secondary-side power conversion value can be the secondary-side active power conversion value. The secondary-side reactive power conversion value can also be calculated according to the above method.

[0049] S140. Determine whether the wiring circuit connection is correct after the electric energy meter is replaced based on the secondary side power average value and the secondary side power conversion value.

[0050] Specifically, the secondary side power conversion value and the secondary side power average value can be subtracted to determine the secondary side power difference, and the secondary side power difference can be compared with the preset power difference. According to the comparison result, it is determined whether the wiring line connection is correct after the electric energy meter is replaced. For example, if the secondary side power difference is less than or equal to the preset power difference, it is determined that the wiring line connection is correct after the electric energy meter is replaced. If the secondary side power difference is greater than the preset power difference, it is determined that the wiring line connection is incorrect after the electric energy meter is replaced.

[0051] The method for determining the connection of a wiring line after an electric energy meter is replaced provided in an embodiment of the present invention obtains primary power supply data of a wiring circuit to be tested in an electric power dispatching automation system within a first preset time interval, obtains secondary power supply data of a wiring circuit to be tested in a metering automation system within a first preset time interval, and determines the secondary power average value of the metering automation system according to the secondary power supply data, determines the secondary power conversion value of the electric power dispatching automation system according to the primary power supply data and the measurement point conversion factor, and determines whether the connection of the wiring line after the electric energy meter is replaced is correct according to the secondary power average value and the secondary power conversion value. Compared with the prior art in which the staff uses an electricity inspection instrument to perform hexagonal diagram measurement, the work flow of the staff is reduced, and the efficiency of verifying whether the connection of the electric energy meter wiring line is correct is improved. At the same time, the present invention does not require the staff to go to the site for processing, thereby reducing the safety risks of the staff.

[0052] Furthermore, the secondary side power conversion value of the electric power dispatching automation system is determined according to the primary side power supply data and the measurement point conversion ratio, including:

[0053] If the primary side power supply data only includes the primary side power average value, the primary side power average value is divided by the power conversion factor in the measurement point conversion factor to determine the secondary side power conversion value of the electric power dispatching automation system.

[0054] Specifically, if the primary side power supply data only includes the primary side power average value, the primary side power average value P1 is divided by the power conversion factor k in the measurement point conversion factor. UI To determine the secondary side power conversion value P2 of the power dispatching automation system, for example, the secondary side power conversion value P2 = (P1*1000) / k UIBefore calculating the secondary side power conversion value, it is necessary to determine whether the primary side power average value P1 is 0. If the primary side power average value P1 is not zero, the secondary side power conversion value P2 of the power dispatching automation system can be determined by the primary side power average value P1; if the primary side power average value P1 is zero, the line name and line status, that is, the line no-load status, are recorded, and the dispatching automation system and the marketing system are used to determine whether the line is a backup line. If the line is a backup line that has not been put into use, then after the line is put into operation, it is necessary to determine whether the wiring line connection is correct after the electric energy meter is replaced; if the line is a non-loaded non-backup line that has been put into use, it is necessary to regularly monitor the load of the line, and after the line is loaded, it is necessary to determine whether the wiring line connection is correct after the electric energy meter is replaced.

[0055] Furthermore, the secondary side power conversion value of the electric power dispatching automation system is determined according to the primary side power supply data and the measurement point conversion ratio, including:

[0056] If the primary side power supply data only includes the primary side current average value, the primary side current average value is divided by the current conversion factor of the measurement point conversion factor to determine the secondary side current conversion value of the power dispatching automation system;

[0057] The secondary side voltage average value and the total power factor average value of the wiring circuit to be tested in the metering automation system within the first preset time interval are obtained, and the secondary side power conversion value of the power dispatching automation system is determined according to the secondary side current conversion value, the secondary side voltage average value and the total power factor average value.

[0058] Specifically, if the primary side power supply data only includes the primary side current average value, the primary side current average value Ia is divided by the current conversion factor k in the measurement point conversion factor. CT , to determine the secondary current conversion value Ia' of the power dispatching automation system. For example, the secondary current conversion value Ia'=Ia / k CTBefore calculating the secondary current conversion value, it is necessary to determine whether the primary current average value Ia is 0. If the primary current average value Ia is not zero, the secondary current conversion value Ia' of the power dispatching automation system can be determined by the primary current average value Ia; if the primary current average value Ia is zero, the line name and line status, that is, the line no-load status, are recorded, and the dispatching automation system and the marketing system are used to determine whether the line is a backup line. If the line is a backup line that has not been put into use, then after the line is put into operation, it is necessary to determine whether the wiring line connection is correct after the electric energy meter is replaced; if the line is a non-loaded non-backup line that has been put into use, it is necessary to regularly monitor the load of the line, and after the line is loaded, it is necessary to determine whether the wiring line connection is correct after the electric energy meter is replaced. After determining the secondary current conversion value Ia' of the electric power dispatching automation system, the secondary current conversion value Ia' is subtracted from the secondary current average value obtained from the metering automation system to determine the secondary current difference, and the secondary current difference is compared with the preset current difference. According to the comparison result, it is judged whether there is an abnormality in the secondary current conversion value Ia' after the electric energy meter is replaced. If there is no abnormality in the secondary current conversion value Ia', the secondary voltage average value and the total power factor average value of the wiring circuit to be tested in the metering automation system within the first preset time interval are obtained, and it is judged whether the wiring method of the wiring circuit to be tested is a three-phase four-wire wiring method or a three-phase three-wire wiring method. According to the judgment result, as well as the secondary current conversion value, the secondary voltage average value and the total power factor average value, the secondary power conversion value of the electric power dispatching automation system is determined.

[0059] Further, obtaining the average secondary side voltage and the average total power factor of the wiring loop to be tested in the metering automation system within the first preset time interval, and determining the secondary side power conversion value of the power dispatching automation system according to the secondary side current conversion value, the average secondary side voltage and the average total power factor, including:

[0060] The average secondary side voltage and the average total power factor of the wiring circuit to be tested in the metering automation system are obtained within the first preset time interval, and it is determined whether the wiring method of the wiring circuit to be tested is a three-phase four-wire wiring method or a three-phase three-wire wiring method. The secondary side power conversion value of the electric power dispatching automation system is determined according to the judgment result, the secondary side current conversion value, the average secondary side voltage and the average total power factor.

[0061] The average secondary voltage value can be understood as the average value of multiple voltage groups on the low voltage side of the power system within the first preset time interval. The average total power factor value can be understood as the average value of multiple total power factors of the power system within the first preset time interval.

[0062] Specifically, after obtaining the average secondary voltage and the average total power factor of the wiring circuit to be tested in the metering automation system within the first preset time interval, it is determined whether the average secondary voltage is 0. If the average secondary voltage is zero, it is determined that the wiring of the electric energy meter is incorrect after the meter is replaced, and the cause of the fault is recorded as the loss of voltage of the electric energy meter; if the average secondary voltage is not zero, it is determined whether the wiring method of the wiring circuit to be tested is a three-phase four-wire wiring method. If the wiring method of the wiring circuit to be tested is a three-phase four-wire wiring method, the secondary power conversion value P2 of the power dispatching automation system can be calculated according to the following formula:

[0063] P2=3*Ua'*Ia'*cosα;

[0064] If the wiring mode of the wiring circuit to be tested is a three-phase three-wire system, the secondary side power conversion value P2 of the power dispatching automation system can be calculated according to the following formula:

[0065]

[0066] Among them, Ua' is the average value of the secondary side voltage, Ia' is the converted value of the secondary side current, and cosα is the average value of the total power factor.

[0067] Further, judging whether the connection of the wiring line after the electric energy meter is replaced is correct according to the secondary side power average value and the secondary side power conversion value, and then including:

[0068] Determine the secondary side active energy in the power dispatching automation system according to the secondary side power conversion value;

[0069] Determine the interval active energy in the first preset time interval in the metering automation system, and judge whether the wiring line connection is correct after the electric energy meter is replaced based on the secondary side active energy and the interval active energy.

[0070] Specifically, the secondary side active electricity E2 in the power dispatching automation system can be determined according to the secondary side power conversion value P2 and the duration h corresponding to the first preset time interval. For example, the secondary side active electricity E2 = secondary side power conversion value P2 * duration h. At the same time, the interval active electricity E2' in the first preset time interval in the metering automation system is determined, and the active electricity difference is determined by subtracting the secondary side active electricity E2 from the interval active electricity E2', and the active electricity difference is compared with the preset electricity difference, wherein the preset electricity difference = 5% * secondary side active electricity E2. According to the comparison result, it is judged whether the wiring line connection is correct after the electric energy meter is replaced, so as to further verify the accuracy of the wiring line connection after the electric energy meter is replaced. For example, the calculation method of the secondary side reactive power is the same as the calculation method of the secondary side active electricity E2.

[0071] Further, judging whether the connection of the wiring line after the electric energy meter is replaced is correct according to the secondary side power average value and the secondary side power conversion value, including:

[0072] The secondary side power difference is determined by subtracting the secondary side power conversion value from the secondary side power average value, and the secondary side power difference is compared with the preset power difference. Based on the comparison result, it is determined whether the wiring line connection is correct after the electric energy meter is replaced.

[0073] Specifically, if the secondary side power difference is less than or equal to the preset power difference, it is determined that the wiring line connection is correct after the electric energy meter is replaced; if the secondary side power difference is greater than the preset power difference, it is determined that the electric energy meter is in an abnormal state after the meter is replaced. At this time, it is necessary to record the secondary side power difference, and calculate the secondary side historical power difference according to the data in the power dispatching automation system and the metering automation system before the electric energy meter is replaced according to the above method, and compare the secondary side power difference with the secondary side historical power difference. If the secondary side power difference is different from the secondary side historical power difference, it means that the connection of the electric energy meter wiring line is incorrect after the meter is replaced, and the staff needs to check the fault on site; if the secondary side power difference is the same as the secondary side historical power difference, it means that the connection of the electric energy meter wiring line is normal after the meter is replaced, but the measurement point conversion factor entered in the metering automation system is abnormal, and the staff needs to be notified to check the measurement point conversion factor. Among them, the preset power difference = 5% * secondary side power conversion value. Exemplary, Figure 2 is a flowchart of another method for determining the connection of a wiring line after an electric energy meter is replaced according to an embodiment of the present invention, with reference to Figure 2 The present invention provides a specific embodiment of a method for determining the connection of a wiring line after an electric energy meter is replaced, which is specifically described as follows:

[0074] S101, acquiring primary power supply data in the power dispatching automation system in real time, and executing step S102;

[0075] S102, determining whether the primary side power supply data only includes the primary side power average value P1, if so, executing step S103, if not, executing step S301;

[0076] S103, obtaining the secondary side active power and the measurement point conversion factor of the circuit to be measured in the metering automation system, and executing step S104;

[0077] S104, averaging multiple groups of secondary side active powers to determine a secondary side power average value P2', and executing step S105;

[0078] S105: Calculate the power conversion factor k based on the primary side power average value P1 and the power conversion factor k in the measurement point conversion factor UI Determine the secondary side power conversion value P2 = (P1*1000) / k UI, execute step S106; S106, subtract the secondary side power conversion value P2 from the secondary side power average value P2' to determine the secondary side power difference △P = P2-P2', and execute step S107;

[0079] S107, determining whether the secondary side power difference △P is greater than a preset power difference, if so, executing step S108, if not, executing step S201;

[0080] S108, the electric energy meter is in an abnormal state after the meter is replaced;

[0081] S201, calculate the secondary side active energy E2=P2×24, and execute step S202;

[0082] S202, based on the active energy E at zero o'clock on the previous day k-1 and the active energy E at zero o'clock on the day k Determine the electricity used the previous day E2'=E k -E k-1 , execute step S203;

[0083] S203, calculating the active energy difference △E=E2-E2' between the active energy E2 of the secondary side and the energy E2' used the previous day, and executing step S204;

[0084] S204, determining whether the active energy difference value E is greater than a preset energy difference value, if so, executing step S108, if not, executing step S400;

[0085] S301, the primary side power supply data only includes the primary side current average value Ia, the primary side current average value Ia is divided by the current conversion factor k in the measurement point conversion factor CT Determine the secondary current conversion value Ia'=Ia / k CT , execute step S302;

[0086] S302, obtaining the average secondary current Ia in the metering automation system", and executing step S303;

[0087] S303, subtract the secondary current conversion value Ia' from the secondary current average value Ia", determine the secondary current difference △I = Ia'-Ia", and execute step S304;

[0088] S304, determining whether the secondary side current difference △I is greater than a preset current difference, if so, executing step S108, if not, executing step S305;

[0089] S305, obtaining the average secondary voltage Ua' and the average total power factor cosα in the metering system, and executing step S306;

[0090] S306, determining whether the wiring mode of the wiring circuit to be tested is a three-phase four-wire wiring mode, if so, executing step S307, if not, executing step S308;

[0091] S307, calculate the secondary side power conversion value P2 = 3*Ua'*Ia'*cosα, and execute step S309;

[0092] S308. Calculate the secondary side power conversion value Execute step S309;

[0093] S309, averaging multiple groups of secondary side active powers to determine a secondary side power average value P2', and executing step S106;

[0094] S400. The wiring circuits of the electric energy meter are connected correctly after replacement.

[0095] The present invention provides a device for determining the connection of a wiring line after an electric energy meter is replaced. Figure 3 is a schematic diagram of a structure of a wiring line connection judgment device after an electric energy meter is replaced according to an embodiment of the present invention, with reference to Figure 3 , the electric energy meter wiring line connection judgment device 200 includes:

[0096] The primary side power supply data acquisition module 210 is used to acquire the primary side power supply data of the wiring loop to be tested in the power dispatching automation system within a first preset time interval; wherein the primary side power supply data includes the primary side current average value or the primary side power average value;

[0097] The secondary side power average value determination module 220 is used to obtain the secondary side power supply data of the wiring loop to be tested in the metering automation system within the first preset time interval, and determine the secondary side power average value of the metering automation system according to the secondary side power supply data; wherein the secondary side power supply data includes the secondary side active power and the measurement point conversion factor;

[0098] A secondary side power conversion value determination module 230 is used to determine the secondary side power conversion value of the power dispatching automation system according to the primary side power supply data and the measurement point conversion multiple;

[0099] The wiring line connection judgment module 240 is used to judge whether the wiring line connection is correct after the electric energy meter is replaced according to the secondary side power average value and the secondary side power conversion value.

[0100] Furthermore, the secondary side power conversion value determination module 230 is also used for:

[0101] If the primary side power supply data only includes the primary side power average value, the primary side power average value is divided by the power conversion factor in the measurement point conversion factor to determine the secondary side power conversion value of the electric power dispatching automation system.

[0102] Furthermore, the secondary side power conversion value determination module 230 includes:

[0103] A secondary side current conversion value determination unit is used to divide the primary side current average value by the current conversion factor in the measurement point conversion factor when the primary side power supply data only includes the primary side current average value, so as to determine the secondary side current conversion value of the power dispatching automation system;

[0104] The secondary side power conversion value determination unit is used to obtain the secondary side voltage average value and the total power factor average value of the wiring circuit to be tested in the metering automation system within the first preset time interval, and determine the secondary side power conversion value of the power dispatching automation system according to the secondary side current conversion value, the secondary side voltage average value and the total power factor average value.

[0105] Furthermore, the secondary side power conversion value determination unit is also used for:

[0106] The secondary side voltage average value and the total power factor average value of the wiring circuit to be tested in the metering automation system within the first preset time interval are obtained, and it is determined whether the wiring method of the wiring circuit to be tested is a three-phase four-wire wiring method. The secondary side power conversion value of the electric power dispatching automation system is determined according to the judgment result, the secondary side current conversion value, the secondary side voltage average value and the total power factor average value.

[0107] Furthermore, the electric energy meter wiring line connection determination device 200 further includes:

[0108] The secondary side active energy determination module is used to determine whether the connection of the wiring line after the electric energy meter is replaced is correct according to the secondary side power average value and the secondary side power conversion value, and then determine the secondary side active energy in the power dispatching automation system according to the secondary side power conversion value;

[0109] The wiring line connection re-judgment module is used to determine the interval active electricity in the first preset time interval in the metering automation system, and judge whether the wiring line connection is correct after the electric energy meter is replaced based on the secondary side active electricity and the interval active electricity.

[0110] Furthermore, the wiring line connection determination module 240 is also used for:

[0111] The secondary side power difference is determined by subtracting the secondary side power conversion value from the secondary side power average value, and the secondary side power difference is compared with the preset power difference. Based on the comparison result, it is determined whether the wiring line connection is correct after the electric energy meter is replaced.

[0112] The device for determining the connection of a wiring line after an electric energy meter is replaced provided in an embodiment of the present invention can execute the method for determining the connection of a wiring line after an electric energy meter is replaced provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0113] Figure 4 A schematic diagram of an electronic device that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0114] like Figure 4 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0115] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0116] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a method for determining the connection of a wiring line after an electric energy meter is replaced.

[0117] In some embodiments, the method for determining whether the wiring line is connected after the electric energy meter is replaced can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for determining whether the wiring line is connected after the electric energy meter is replaced described above can be executed. Alternatively, in other embodiments, the processor 11 can be configured to execute the method for determining whether the wiring line is connected after the electric energy meter is replaced by any other appropriate means (for example, by means of firmware).

[0118] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0119] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0120] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0121] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0122] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0123] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0124] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0125] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining the connection of a wiring line after an electric energy meter is replaced, characterized in that: include: Acquire primary side power supply data of a wiring loop to be tested in a power dispatching automation system within a first preset time interval; wherein the primary side power supply data includes an average primary side current or an average primary side power; Acquire the secondary side power supply data of the wiring loop to be tested in the metering automation system within a first preset time interval, and determine the secondary side power average value of the metering automation system according to the secondary side power supply data; wherein the secondary side power supply data includes the secondary side active power and the measurement point conversion factor; Determine the secondary side power conversion value of the electric power dispatching automation system according to the primary side power supply data and the measurement point conversion factor; Whether the wiring line connection is correct after the electric energy meter is replaced is judged according to the secondary side power average value and the secondary side power conversion value.

2. The method for determining the connection of a wiring line after replacement of an electric energy meter according to claim 1, characterized in that: Determining the secondary side power conversion value of the electric power dispatching automation system according to the primary side power supply data and the measurement point conversion factor includes: If the primary side power supply data only includes the primary side power average value, the primary side power average value is divided by the power conversion factor in the measurement point conversion factor to determine the secondary side power conversion value of the electric power dispatching automation system.

3. The method for determining the connection of a wiring line after replacement of an electric energy meter according to claim 1, characterized in that: Determining the secondary side power conversion value of the electric power dispatching automation system according to the primary side power supply data and the measurement point conversion factor includes: If the primary-side power supply data only includes the primary-side current average value, the primary-side current average value is divided by the current conversion factor in the measurement point conversion factor to determine the secondary-side current conversion value of the power dispatching automation system; The secondary side voltage average value and the total power factor average value of the wiring loop to be tested in the metering automation system within the first preset time interval are obtained, and the secondary side power conversion value of the power dispatching automation system is determined according to the secondary side current conversion value, the secondary side voltage average value and the total power factor average value.

4. The method for determining the connection of a wiring line after replacement of an electric energy meter according to claim 3, characterized in that: Obtaining the secondary side voltage average value and the total power factor average value of the wiring loop to be tested in the metering automation system within a first preset time interval, and determining the secondary side power conversion value of the power dispatching automation system according to the secondary side current conversion value, the secondary side voltage average value and the total power factor average value, including: Obtain the secondary side voltage average value and the total power factor average value of the wiring loop to be tested in the metering automation system within the first preset time interval, and determine whether the wiring method of the wiring loop to be tested is a three-phase four-wire wiring method, and determine the secondary side power conversion value of the power dispatching automation system according to the judgment result, as well as the secondary side current conversion value, the secondary side voltage average value and the total power factor average value.

5. The method for determining the connection of a wiring line after replacement of an electric energy meter according to claim 1, characterized in that: Judging whether the connection of the wiring line after the electric energy meter is replaced is correct according to the secondary side power average value and the secondary side power conversion value, and then further comprising: Determine the secondary side active electricity in the electric power dispatching automation system according to the secondary side power conversion value; The interval active energy in the metering automation system within a first preset time interval is determined, and whether the wiring line connection after the electric energy meter is replaced is judged correctly according to the secondary side active energy and the interval active energy.

6. The method for determining the connection of a wiring line after replacement of an electric energy meter according to claim 1, characterized in that: Judging whether the connection of the wiring line after the electric energy meter is replaced is correct according to the secondary side power average value and the secondary side power conversion value, includes: The secondary side power difference is determined by subtracting the secondary side power conversion value from the secondary side power average value, and the secondary side power difference is compared with the preset power difference value, and whether the wiring line connection is correct after the electric energy meter is replaced is determined based on the comparison result.

7. A device for determining the connection of a wiring line after an electric energy meter is replaced, characterized in that: include: A primary side power supply data acquisition module is used to acquire the primary side power supply data of the wiring loop to be tested in the power dispatching automation system within a first preset time interval; wherein the primary side power supply data includes the primary side current average value or the primary side power average value; A secondary side power average value determination module is used to obtain the secondary side power supply data of the wiring loop to be tested in the metering automation system within a first preset time interval, and determine the secondary side power average value of the metering automation system according to the secondary side power supply data; wherein the secondary side power supply data includes the secondary side active power and the measurement point conversion factor; A secondary side power conversion value determination module, used to determine the secondary side power conversion value of the electric power dispatching automation system according to the primary side power supply data and the measurement point conversion ratio; The wiring line connection judgment module is used to judge whether the wiring line connection is correct after the electric energy meter is replaced according to the secondary side power average value and the secondary side power conversion value.

8. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for determining the connection of a wiring line after replacement of an electric energy meter according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the connection of a wiring line after replacement of an electric energy meter according to any one of claims 1 to 6 when executed.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the method for determining the connection of a wiring line after replacement of an electric energy meter according to any one of claims 1 to 6 is implemented.

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