A method, device, storage medium and electronic equipment for measuring and compensating electric energy meter

By correcting the initial voltage and current signals of the power meter and using the target quadratic function to correct the angle, the problem of low metering accuracy near the zero point of the power factor is solved, and high accuracy within the entire domain power factor range is achieved Measuring.

CN117890849BActive Publication Date: 2025-02-14POWER SUPPLY SERVICE & MANAGEMENT CENT STATE GRID JIANGXI ELECTRIC POWER CO LTD +2
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Patent Information

Application Number
CN202311661400.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-06
Publication Date
2025-02-14
Estimated Expiration
2043-12-06

AI Technical Summary

Technical Problem

The metering accuracy of traditional power meters near the zero point of power factor is low, and cannot meet the accuracy requirements of the entire domain power factor range.

Method used

By correcting the initial voltage signal and initial current signal obtained in real time of the calibration meter, correction parameter values, including correction voltage, correction current and correction angle parameter values ​​are obtained. Based on these parameter values, the target quadratic function (cosine function or sine function) is determined and calculated to obtain the target correction angle parameter value. Then, the initial correction power parameter values ​​are calculated based on these parameter values, and the residual error value is obtained by a standard power meter correction process. Finally, these parameter values ​​are processed using the compensation algorithm to obtain the compensation value, and real-time compensation of power is performed.

Benefits of technology

The metering accuracy of the power meter in the entire domain power factor range is greatly improved, especially near the power factor zero point.

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Abstract

The present application discloses a method, device, storage medium and electronic device for measuring and compensating an electric energy meter. The method comprises: using an electric energy meter to be calibrated to calibrate an initial voltage signal and an initial current signal acquired in real time to obtain a calibration parameter value; determining a target quadratic function based on a calibration angle parameter value and each preset angle interval; using a target quadratic function to calculate a target calibration angle parameter value based on the calibration angle parameter value; calculating an initial calibration power parameter value based on a calibration voltage parameter value, a calibration current parameter value and a target calibration angle parameter value; calculating a residual error value based on an initial calibration power parameter value and an initial standard power parameter value; using a preset compensation algorithm to calculate a compensation value based on the calibration parameter value and the residual error value; and calculating a compensated target power parameter value based on the initial calibration power parameter value and the compensation value. The method of the present application can improve the metering accuracy of the electric energy meter.
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Description

Technical Field

[0001] The present invention relates to the technical field of electric energy metering, and in particular to an electric energy meter metering compensation method, device, storage medium and electronic equipment. Background Art

[0002] With the development of the power system, the requirements for the accuracy of electric energy data are getting higher and higher. The accuracy of traditional electric energy meters can only meet the requirements within the power factor range of 0.25L~0.25C, but within the full power factor, especially within the small angle power factor, there is a large measurement error in the measurement accuracy, which cannot meet the precise measurement. To achieve the calibration of the full power factor electric energy meter, the key point lies in the compensation of the power factor. At present, electric energy meters generally use dedicated metering chips for metering calculations. In the calibration of electric energy meters, the power factor is usually compensated by calibrating the angle. Since the minimum resolution of the angle calibration of the metering chip is not high, there is still a certain angle deviation after the normal angle calibration. The accuracy of this angle deviation meets the requirements within the normal power factor range of 0.25L~0.25C, but it cannot meet the accuracy requirements of the full power factor range. Summary of the invention

[0003] In view of this, the present invention provides an electric energy meter measurement compensation method, device, storage medium and electronic device, the main purpose of which is to solve the problem of low measurement accuracy of traditional electric energy meters near the power factor zero point.

[0004] In order to solve the above problems, the present application provides an electric energy meter measurement compensation method, comprising:

[0005] The electric energy meter to be calibrated is used to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value;

[0006] Determine a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval, wherein the target quadratic function is a cosine function or a sine function;

[0007] Based on the correction angle parameter value, the target quadratic function is used to perform calculation processing to obtain a target correction angle parameter value;

[0008] Performing calculation based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain an initial correction power parameter value;

[0009] Performing calculation based on the initial corrected power parameter value and the initial standard power parameter value obtained by correction processing using a standard electric energy meter to obtain a residual error value;

[0010] Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used to perform calculation processing to obtain a compensation value;

[0011] A calculation process is performed based on the initial correction power parameter value and the compensation value to obtain a target power parameter value after compensation.

[0012] Optionally, the method of using the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain the calibration parameter value specifically includes:

[0013] The electric energy meter to be calibrated is used to perform bias correction processing on the initial voltage signal and the initial current signal acquired in real time to obtain a bias correction parameter value;

[0014] Using the electric energy meter to be calibrated to perform gain correction processing on the offset correction parameter value to obtain a gain correction parameter value;

[0015] The electric energy meter to be calibrated is used to perform phase correction processing on the gain correction parameter value to obtain the correction parameter value.

[0016] Optionally, determining a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval specifically includes:

[0017] When the correction angle parameter value is within a first preset angle interval, the cosine function is determined as a target quadratic function corresponding to the correction angle parameter value; or

[0018] When the correction angle parameter value is within a second preset angle interval, a sine function is determined as a target quadratic function corresponding to the correction angle parameter value.

[0019] Optionally, the calculating and processing based on the correction angle parameter value using the target quadratic function to obtain a target correction angle parameter value specifically includes:

[0020] Based on the correction angle parameter value, a predetermined cosine function operation method is used to perform calculation processing to obtain a first target correction angle parameter value corresponding to the correction angle parameter value; or,

[0021] Based on the correction angle parameter value, a predetermined sinusoidal function operation method is used to perform calculation processing to obtain a second target correction angle parameter value corresponding to the correction angle parameter value;

[0022] The target correction angle parameter value is a first target correction angle parameter value or a second target correction angle parameter value.

[0023] Optionally, the calculating and processing based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain the initial correction power parameter value specifically includes:

[0024] Perform multiplication processing based on the correction voltage parameter value, the correction current parameter value and the first target correction angle parameter value to obtain the initial correction power parameter value; or,

[0025] The initial correction power parameter value is obtained by performing a multiplication operation based on the correction voltage parameter value, the correction current parameter value and the second target correction angle parameter value.

[0026] Optionally, the calculating and processing based on the correction parameter value and the residual error value using a preset compensation algorithm corresponding to the target quadratic function to obtain the compensation value specifically includes:

[0027] When the first target correction angle parameter value satisfies a first preset condition, performing calculation processing based on the first target correction angle parameter value, the quadratic term coefficient, the intercept constant and the residual error value to obtain a first compensation angle parameter value;

[0028] The compensation value is obtained by performing calculation based on the first compensation angle parameter value, the correction voltage parameter value in the correction parameter value, and the correction current parameter value in the correction parameter value; or,

[0029] When the second target correction angle parameter value satisfies a second preset condition, a calculation process is performed based on the second target correction angle parameter value, the quadratic term coefficient, the intercept constant and the residual error value to obtain a second compensation angle parameter value;

[0030] The compensation value is obtained by performing calculation processing based on the second compensation angle parameter value, the correction voltage parameter value in the correction parameter value, and the correction current parameter value in the correction parameter value.

[0031] Optionally, the method further includes:

[0032] When the first target correction angle parameter value does not meet the first preset condition, or,

[0033] When the second target correction angle parameter value does not satisfy the second preset condition, the obtained compensation value is 0.

[0034] In order to solve the above problems, the present application provides an electric energy meter measurement compensation device, comprising:

[0035] Correction module: used to use the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal obtained in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value;

[0036] A determination module: used to determine a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval, wherein the target quadratic function is a cosine function or a sine function;

[0037] A target correction angle calculation module is used to calculate and process the target correction angle parameter value using the target quadratic function to obtain the target correction angle parameter value;

[0038] An initial correction power calculation module is used to perform calculation based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain an initial correction power parameter value;

[0039] A residual error calculation module: used to perform calculation based on the initial corrected power parameter value and the initial standard power parameter value obtained by correction processing using a standard electric energy meter to obtain a residual error value;

[0040] A compensation value calculation module: used to perform calculation processing based on the correction parameter value and the residual error value using a preset compensation algorithm corresponding to the target quadratic function to obtain a compensation value;

[0041] Target power calculation module: used to perform calculation based on the initial correction power parameter value and the compensation value to obtain the target power parameter value after compensation.

[0042] In order to solve the above problem, the present application provides a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned electric energy meter measurement compensation method are implemented.

[0043] To solve the above problems, the present application provides an electronic device, which at least includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned electric energy meter measurement compensation method when executing the computer program on the memory.

[0044] The present application uses an electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value; a target quadratic function corresponding to the correction angle parameter value is determined based on the correction angle parameter value and each preset angle interval; a target correction angle parameter value is obtained by calculating and processing using the target quadratic function based on the correction angle parameter value; an initial correction power parameter value is obtained by calculating and processing based on the correction voltage parameter value, the correction current parameter value, and the target correction angle parameter value; a residual error value is obtained by calculating and processing based on the initial correction power parameter value and the initial standard power parameter value obtained by calibration using a standard electric energy meter; in the existing meter calibration method, the residual error value is taken into account to compensate for the measurement of the electric energy meter, so as to adjust the differences between individual electric energy meters and enable the method to be used on different electric energy meters. Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used for calculation processing to obtain a compensation value; and based on the correction parameter value and the residual error value, a preset compensation algorithm is used for calculation processing to obtain a compensation value; the power of the electric energy meter is compensated in real time. Thereby, the metering accuracy of the electric energy meter within the full power factor range is greatly improved, especially the metering accuracy near the power factor zero point. Based on the initial correction power parameter value and the compensation value, a calculation is performed to obtain a target power parameter value after compensation. The metering accuracy of the electric energy meter is improved.

[0045] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0047] Figure 1 A schematic diagram of a flow chart of an electric energy meter measurement compensation method provided in an embodiment of the present application is shown;

[0048] Figure 2 A schematic flow chart of a method for measuring and compensating an electric energy meter provided in another embodiment of the present application is shown;

[0049] Figure 3A structural block diagram of an electric energy meter measurement and compensation device provided in another embodiment of the present application is shown. DETAILED DESCRIPTION

[0050] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0051] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the present application will occur to those skilled in the art.

[0052] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0053] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0054] It should also be understood that although the present application has been described with reference to some specific examples, those skilled in the art will be able to readily implement many other equivalent forms of the present application.

[0055] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0056] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present application. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0057] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0058] The present application embodiment provides a method for measuring and compensating an electric energy meter, such as Figure 1 As shown, including:

[0059] Step S101: using the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value;

[0060] In the specific implementation process of this step, the electric energy meter to be calibrated is used to perform offset correction processing, gain correction processing and phase correction processing on the initial voltage signal and the initial current signal to obtain correction parameter values. Among them, the correction parameter values ​​include correction voltage parameter values, correction current parameter values ​​and correction angle parameter values.

[0061] Step S102: determining a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval;

[0062] During the specific implementation of this step, when the correction angle parameter value is within the first preset angle interval, the cosine function is determined as the target quadratic function corresponding to the correction angle parameter value; or, when the correction angle parameter value is within the second preset angle interval, the sine function is determined as the target quadratic function corresponding to the correction angle parameter value.

[0063] Step S103: performing calculation processing based on the correction angle parameter value using the target quadratic function to obtain a target correction angle parameter value;

[0064] During the specific implementation of this step, a predetermined cosine function operation method is used to perform calculation processing based on the correction angle parameter value to obtain a first target correction angle parameter value corresponding to the correction angle parameter value; or a predetermined sine function operation method is used to perform calculation processing based on the correction angle parameter value to obtain a second target correction angle parameter value corresponding to the correction angle parameter value; wherein the target correction angle parameter value is a first target correction angle parameter value or a second target correction angle parameter value.

[0065] Step S104: performing calculation processing based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain an initial correction power parameter value;

[0066] During the specific implementation of this step, a multiplication operation is performed based on the correction voltage parameter value, the correction current parameter value and the first target correction angle parameter value to obtain the initial correction power parameter value; or, a multiplication operation is performed based on the correction voltage parameter value, the correction current parameter value and the second target correction angle parameter value to obtain the initial correction power parameter value.

[0067] Step S105: performing calculation processing based on the initial correction power parameter value and the initial standard power parameter value obtained by correction processing using a standard electric energy meter to obtain a residual error value;

[0068] In the specific implementation process of this step, a standard electric energy meter is used to calibrate the real-time measured initial voltage signal and the initial current signal to obtain a standard voltage parameter value, a standard current parameter value and a standard correction angle parameter value; calculation processing is performed based on the standard voltage parameter value, the standard current parameter value and the standard correction angle parameter value to obtain an initial standard power parameter value; specifically, the standard voltage parameter value, the standard current parameter value and the standard correction angle parameter value are multiplied to obtain the initial standard power parameter value. Calculation processing is performed based on the correction parameter value and the initial standard power parameter value to obtain an initial correction power parameter value and a residual error value after correction processing.

[0069] Step S106: performing calculation processing based on the correction parameter value and the residual error value using a preset compensation algorithm corresponding to the target quadratic function to obtain a compensation value;

[0070] In the specific implementation process of this step, when the first target correction angle parameter value meets the first preset condition, the first compensation angle parameter value is obtained based on the first target correction angle parameter value, the quadratic term coefficient, the intercept constant and the residual error value; the compensation value is obtained based on the first compensation angle parameter value, the correction voltage parameter value in the correction parameter value and the correction current parameter value in the correction parameter value; or, when the second target correction angle parameter value meets the second preset condition, the second compensation angle parameter value is obtained based on the second target correction angle parameter value, the quadratic term coefficient, the intercept constant and the residual error value; the compensation value is obtained based on the second compensation angle parameter value, the correction voltage parameter value in the correction parameter value and the correction current parameter value in the correction parameter value. When the first target correction angle parameter value does not meet the first preset condition, or when the second target correction angle parameter value does not meet the second preset condition, the obtained compensation value is 0.

[0071] Step S107: performing calculation processing based on the initial correction power parameter value and the compensation value to obtain a target power parameter value after compensation processing.

[0072] In the specific implementation process of this step, an addition operation is performed based on the initial correction power parameter value and the compensation value to obtain the target power parameter value after compensation.

[0073] The present application uses an electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value; a target quadratic function corresponding to the correction angle parameter value is determined based on the correction angle parameter value and each preset angle interval; a target correction angle parameter value is obtained by calculating and processing using the target quadratic function based on the correction angle parameter value; an initial correction power parameter value is obtained by calculating and processing based on the correction voltage parameter value, the correction current parameter value, and the target correction angle parameter value; a residual error value is obtained by calculating and processing based on the initial correction power parameter value and the initial standard power parameter value obtained by calibration using a standard electric energy meter; in the existing meter calibration method, the residual error value is taken into account to compensate for the measurement of the electric energy meter, so as to adjust the differences between individual electric energy meters and enable the method to be used on different electric energy meters. Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used for calculation processing to obtain a compensation value; and based on the correction parameter value and the residual error value, a preset compensation algorithm is used for calculation processing to obtain a compensation value; the power of the electric energy meter is compensated in real time. Thereby, the metering accuracy of the electric energy meter within the full power factor range is greatly improved, especially the metering accuracy near the power factor zero point. Based on the initial correction power parameter value and the compensation value, a calculation is performed to obtain a target power parameter value after compensation. The metering accuracy of the electric energy meter is improved.

[0074] Another embodiment of the present application provides another electric energy meter measurement compensation method, such as Figure 2 As shown, including:

[0075] Step S201: using the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a calibration parameter value;

[0076] In the specific implementation process of this step, the electric energy meter to be calibrated is used to perform bias correction processing on the initial voltage signal and the initial current signal obtained in real time to obtain each bias correction parameter value; the electric energy meter to be calibrated is used to perform gain correction processing on the correction parameter value to obtain each gain correction parameter value; the electric energy meter to be calibrated is used to perform phase correction processing on the correction parameter value to obtain the correction parameter value; specifically, the order of the bias correction processing process, the gain correction processing process and the phase correction processing process can be set according to actual needs. Among them, the correction parameter value includes the correction voltage parameter value U, the correction current parameter value I, the correction angle parameter value θ, etc.

[0077] Step S202: using a standard electric energy meter to perform real-time correction processing on the initial voltage signal and the initial current signal to obtain a standard voltage parameter value and a standard current parameter value;

[0078] In the specific implementation process of this step, a standard electric energy meter is used to perform real-time correction processing on the initial voltage signal and the initial current signal to obtain a standard voltage parameter value and a standard current parameter value.

[0079] Step S203: performing calculation based on the standard voltage parameter value and the standard current parameter value to obtain an initial standard power parameter value;

[0080] In the specific implementation process of this step, a multiplication operation is performed based on the standard voltage parameter value and the standard current parameter value to obtain an initial standard power parameter value.

[0081] Step S204: determining a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval;

[0082] During the specific implementation of this step, within the global power factor range, as the angle between the voltage signal and the current signal changes between 0 and 360°, the power factor data also changes. Especially when the power factor is near 0, that is, the angle of active power is near 90°, 270° or the angle of reactive power is near 0°, 180°, the rate of change of the power factor data is very large, and even a small angle change will cause a relatively large power factor change, thereby causing a relatively large measurement error change. By judging based on the correction angle parameter value, it is determined in which angle interval the current correction angle parameter value is, so as to determine the target correction angle parameter value sinθ or cosθ based on the correction angle parameter value θ. When the correction angle parameter value is within the first preset angle interval, the cosine function is determined as the target quadratic function corresponding to the correction angle parameter value; or, when the correction angle parameter value is within the second preset angle interval, the sine function is determined as the target quadratic function corresponding to the correction angle parameter value. Specifically, when the current power is active power and the correction angle parameter value is within the first preset angle interval, the cosine function is determined as the target quadratic function corresponding to the correction angle parameter value; the first preset angle interval can be the correction angle parameter value θ around 90° or 270°, specifically 90°-γ≤θ≤90°+γ; or 270°-γ≤θ≤270°+γ; wherein the γ value can be 5°, 10°, etc., and the γ value can be set according to actual needs. Alternatively, when the correction angle parameter value is within the second preset angle interval, the sine function is determined as the target quadratic function corresponding to the correction angle parameter value. Specifically, when the current power is reactive power, the second preset angle interval is the correction angle parameter value θ around 0° or 180°, specifically 0°-γ≤θ≤0°+γ; or 180-γ≤θ≤180°+γ; wherein the γ value can be 5°, 10°, etc., and the γ value can be set according to actual needs.

[0083] Step S205: performing calculation processing based on the correction angle parameter value using the target quadratic function to obtain a target correction angle parameter value;

[0084] During the specific implementation of this step, when the correction angle parameter value is within the first preset angle interval, the current power is active power, and a predetermined cosine function operation method is used based on the correction angle parameter value to perform calculation processing to obtain a first target correction angle parameter value cosθ corresponding to the correction angle parameter value; or, when the correction angle value is within the second preset angle interval, the current power is reactive power, and a predetermined sine function operation method is used based on the correction angle parameter value to perform calculation processing to obtain a second target correction angle parameter value sinθ corresponding to the correction angle parameter value; wherein the target correction angle parameter value is the first target correction angle parameter value or the second target correction angle parameter value.

[0085] Step S206: performing calculation processing based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain an initial correction power parameter value;

[0086] In the specific implementation process of this step, when the correction angle parameter value is within the first preset angle interval and the current power is active power, a multiplication operation is performed based on the correction voltage parameter value, the correction current parameter value and the first target correction angle parameter value to obtain the initial correction power parameter value; when active power is performed, a multiplication operation is performed based on the correction voltage parameter value, the correction current parameter value and the first target correction angle parameter value to obtain the initial correction power parameter value P0. Alternatively, when the correction angle value is within the second preset angle interval and the current power is reactive power, a multiplication operation is performed based on the correction voltage parameter value, the correction current parameter value and the second target correction angle parameter value to obtain the initial correction power parameter value. When reactive power is performed, a multiplication operation is performed based on the correction voltage parameter value, the correction current parameter value and the second target correction angle parameter value to obtain the initial correction power parameter value P0.

[0087] Step S207: performing calculation processing based on the initial correction power parameter value and the initial standard power parameter value obtained by correction processing using a standard electric energy meter to obtain a residual error value;

[0088] In the specific implementation process of this step, a subtraction operation is performed based on the initial standard power parameter value and the initial correction power parameter value P0 to calculate the residual error value err0.

[0089] Step S208: performing calculation processing based on the correction parameter value and the residual error value using a preset compensation algorithm corresponding to the target quadratic function to obtain a compensation value;

[0090] In the specific implementation process of this step, in the case of active power, the first target correction angle parameter value cosθ is judged to obtain a judgment result; when the judgment result is that the first target correction angle parameter value meets the first preset condition, the calculation is performed based on the first target correction angle parameter value, the quadratic term coefficient and the intercept constant to obtain the first compensation angle parameter value; specifically, the first preset condition can be -a<cosθ<b; the calculation is performed based on the first target correction angle parameter value cosθ, the quadratic term coefficient α, the intercept constant β and the residual error value err0 to obtain the first compensation angle parameter value. The calculation formula of the first compensation angle parameter value can be shown as follows (1):

[0091] The first compensation angle parameter value = (αcos 2 θ+βerr 0 ) (1)

[0092] Among them, cosθ∈(-a, b), α is the quadratic term coefficient in the quadratic function algorithm; β is the intercept constant in the quadratic function algorithm. The metering chip has a phase calibration minimum step value Δ. When the phase changes in the range of 0 to 360 degrees, a set of power factor difference cosθ-cos(θ+Δ) introduced by the phase calibration minimum step value is generated. With cosθ as the horizontal coordinate and the power factor difference cosθ-cos(θ+Δ) as the vertical coordinate, a quadratic curve fitting is performed to obtain the quadratic term coefficient α and the intercept constant β. α can be -0.000093 and β can be 0.577. This application does not limit the values ​​of the quadratic term coefficient α and the intercept constant β. err0 is the residual error value after phase correction. The values ​​of a and b can be set according to actual needs, and generally a=b is taken.

[0093] The compensation value λ is obtained by performing calculation based on the first compensation angle parameter value, the correction voltage parameter value U in the correction parameter value, and the correction current parameter value I in the correction parameter value. The calculation formula of the compensation value λ can be shown in the following formula (2):

[0094] λ=UI(αcos 2 θ+βerr 0 ) (2)

[0095] In the case of reactive power, the second target correction angle parameter value is judged to obtain a judgment result; when the judgment result is that the second target correction angle parameter value meets the second preset condition, the second target correction angle parameter value, the quadratic term coefficient, the intercept constant and the residual error value are calculated and processed to obtain the second compensation angle parameter value; specifically, the second preset condition can be sinθ∈(-a, b); the second target correction angle parameter value sinθ, the quadratic term coefficient α, the intercept constant β and the residual error value err0 are calculated and processed to obtain the second compensation angle parameter value. The calculation formula of the second compensation angle parameter value can be shown as follows:

[0096] The second compensation angle parameter value = (αsin 2 θ+βerr 0 ) (3)

[0097] Among them, sinθ∈(-a, b), α is the coefficient value of the quadratic term in the quadratic function algorithm; β is the intercept constant parameter value in the quadratic function algorithm, and err0 is the residual error value after phase correction. The values ​​of a and b can be set according to actual needs, and generally a=b.

[0098] The compensation value λ is obtained by performing calculation based on the second compensation angle parameter value, the correction voltage parameter value U in the correction parameter value, and the correction current parameter value I in the correction parameter value. The calculation formula of the compensation value λ can be shown in the following formula (4):

[0099] λ=UI(αsin 2 θ+βerr 0 ) (4)

[0100] When the judgment result is that the first target correction angle parameter value does not meet the first preset condition, or when the judgment result is that the second target correction angle parameter value does not meet the second preset condition, the obtained compensation value is 0. That is, when the first target correction angle parameter value is -1<cosθ<-a, b<cosθ<1, the obtained compensation value is λ=0; or when the second target correction angle parameter value is sinθ∈(-1,-a)or sinθ∈(b,1), the obtained compensation value is λ=0.

[0101] Step S209: performing calculation processing based on the initial correction power parameter value and the compensation value to obtain a target power parameter value after compensation processing.

[0102] In the specific implementation process of this step, an addition operation is performed based on the initial correction power parameter value P0 and the compensation value λ to obtain the target power parameter value P1 after compensation. The calculation formula of the target power parameter value P1 can be shown as the following formula (5):

[0103] P1=P0+λ (5)

[0104] The present application uses the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal obtained in real time to obtain the calibration parameter value; uses the standard electric energy meter to calibrate the initial voltage signal and the initial current signal in real time to obtain the standard voltage parameter value and the standard current parameter value; performs calculation processing based on the standard voltage parameter value and the standard current parameter value to obtain the initial standard power parameter value; determines the target quadratic function corresponding to the calibration angle parameter value based on the calibration angle parameter value and each preset angle interval; performs calculation processing based on the calibration angle parameter value using the target quadratic function to obtain the target calibration angle parameter value; performs calculation processing based on the calibration voltage parameter value, the calibration current parameter value and the target calibration angle parameter value to obtain the initial calibration power parameter value; performs calculation processing based on the initial calibration power parameter value and the initial standard power parameter value obtained by calibration processing using the standard electric energy meter to obtain the residual error value; in the existing meter calibration method, the residual error value is taken into account to compensate for the metering of the electric energy meter, so as to adjust the differences between different individual electric energy meters, and also enables the method to be used on different electric energy meters. Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used to perform calculation processing to obtain a compensation value; and the power of the electric energy meter is compensated in real time. Thereby, the metering accuracy of the electric energy meter within the global power factor range is greatly improved, especially the metering accuracy near the power factor zero point. Based on the initial correction power parameter value and the compensation value, calculation processing is performed to obtain the target power parameter value after compensation. The present invention fully understands the characteristics of limited minimum resolution of angle adjustment in phase correction of smart meters, and the characteristics of large metering error changes caused by slight angle errors when the power factor is near 0. The power data characteristics with higher resolution inside the smart meter are used to fine-tune the initial correction power parameter value P0 of the metering chip through an additional power compensation value λ, thereby improving the metering accuracy.

[0105] Another embodiment of the present application provides an electric energy meter measurement compensation device, such as Figure 3 As shown, including:

[0106] Correction module 1: used to use the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal obtained in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value;

[0107] Determination module 2: used to determine a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval, wherein the target quadratic function is a cosine function or a sine function;

[0108] Target correction angle calculation module 3: used to perform calculation processing based on the correction angle parameter value using the target quadratic function to obtain the target correction angle parameter value;

[0109] Initial correction power calculation module 4: used for performing calculation processing based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain an initial correction power parameter value;

[0110] Residual error calculation module 5: used to perform calculation based on the initial corrected power parameter value and the initial standard power parameter value obtained by correction processing using a standard electric energy meter to obtain a residual error value;

[0111] Compensation value calculation module 6: used to perform calculation processing based on the correction parameter value and the residual error value using a preset compensation algorithm corresponding to the target quadratic function to obtain a compensation value;

[0112] Target power calculation module 7: used to perform calculation based on the initial correction power parameter value and the compensation value to obtain the target power parameter value after compensation.

[0113] In the specific implementation process, the correction module 1 is specifically used to: use the electric energy meter to be calibrated to perform bias correction processing on the initial voltage signal and the initial current signal acquired in real time to obtain a bias correction parameter value; use the electric energy meter to be calibrated to perform gain correction processing on the bias correction parameter value to obtain a gain correction parameter value; use the electric energy meter to be calibrated to perform phase correction processing on the gain correction parameter value to obtain the correction parameter value.

[0114] In the specific implementation process, the determination module 2 is specifically used to: when the correction angle parameter value is within a first preset angle interval, determine the cosine function as the target quadratic function corresponding to the correction angle parameter value; or, when the correction angle parameter value is within a second preset angle interval, determine the sine function as the target quadratic function corresponding to the correction angle parameter value.

[0115] During the specific implementation process, the target correction angle calculation module 3 is specifically used to: perform calculation processing based on the correction angle parameter value using a predetermined cosine function operation method to obtain a first target correction angle parameter value corresponding to the correction angle parameter value; or, perform calculation processing based on the correction angle parameter value using a predetermined sine function operation method to obtain a second target correction angle parameter value corresponding to the correction angle parameter value; wherein the target correction angle parameter value is a first target correction angle parameter value or a second target correction angle parameter value.

[0116] In the specific implementation process, the initial correction power calculation module 4 is specifically used to: perform multiplication processing based on the correction voltage parameter value, the correction current parameter value and the first target correction angle parameter value to obtain the initial correction power parameter value; or, perform multiplication processing based on the correction voltage parameter value, the correction current parameter value and the second target correction angle parameter value to obtain the initial correction power parameter value.

[0117] In the specific implementation process, the compensation value calculation module 6 is specifically used for: when the first target correction angle parameter value meets the first preset condition, calculating and processing based on the first target correction angle parameter value, the quadratic term coefficient, the intercept constant and the residual error value to obtain the first compensation angle parameter value; calculating and processing based on the first compensation angle parameter value, the correction voltage parameter value in the correction parameter value and the correction current parameter value in the correction parameter value to obtain the compensation value; or, when the second target correction angle parameter value meets the second preset condition, calculating and processing based on the second target correction angle parameter value, the quadratic term coefficient, the intercept constant and the residual error value to obtain the second compensation angle parameter value; calculating and processing based on the second compensation angle parameter value, the correction voltage parameter value in the correction parameter value and the correction current parameter value in the correction parameter value to obtain the compensation value.

[0118] In a specific implementation process, the compensation value calculation module 6 is also used to: when the first target correction angle parameter value does not meet a first preset condition, or when the second target correction angle parameter value does not meet a second preset condition, the obtained compensation value is 0.

[0119] The present application uses an electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value; a target quadratic function corresponding to the correction angle parameter value is determined based on the correction angle parameter value and each preset angle interval; a target correction angle parameter value is obtained by calculating and processing using the target quadratic function based on the correction angle parameter value; an initial correction power parameter value is obtained by calculating and processing based on the correction voltage parameter value, the correction current parameter value, and the target correction angle parameter value; a residual error value is obtained by calculating and processing based on the initial correction power parameter value and the initial standard power parameter value obtained by calibration using a standard electric energy meter; in the existing meter calibration method, the residual error value is taken into account to compensate for the measurement of the electric energy meter, so as to adjust the differences between individual electric energy meters and enable the method to be used on different electric energy meters. Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used for calculation processing to obtain a compensation value; and based on the correction parameter value and the residual error value, a preset compensation algorithm is used for calculation processing to obtain a compensation value; the power of the electric energy meter is compensated in real time. Thereby, the metering accuracy of the electric energy meter within the full power factor range is greatly improved, especially the metering accuracy near the power factor zero point. Based on the initial correction power parameter value and the compensation value, a calculation is performed to obtain a target power parameter value after compensation. The metering accuracy of the electric energy meter is improved.

[0120] Another embodiment of the present application provides a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the following method steps are implemented:

[0121] Step 1: using the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value;

[0122] Step 2: determining a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval, wherein the target quadratic function is a cosine function or a sine function;

[0123] Step 3: Based on the correction angle parameter value, the target quadratic function is used to perform calculation processing to obtain a target correction angle parameter value;

[0124] Step 4: performing calculation based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain an initial correction power parameter value;

[0125] Step 5: Calculate and process the initial corrected power parameter value and the initial standard power parameter value obtained by correction processing using a standard electric energy meter to obtain a residual error value;

[0126] Step 6: Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used to perform calculation processing to obtain a compensation value;

[0127] Step seven: performing calculation processing based on the initial correction power parameter value and the compensation value to obtain a target power parameter value after compensation processing.

[0128] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0129] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0130] The specific implementation process of the above method steps can refer to the embodiments of any of the above-mentioned electric energy meter measurement compensation methods, and this embodiment will not be repeated here.

[0131] The present application uses an electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value; a target quadratic function corresponding to the correction angle parameter value is determined based on the correction angle parameter value and each preset angle interval; a target correction angle parameter value is obtained by calculating and processing using the target quadratic function based on the correction angle parameter value; an initial correction power parameter value is obtained by calculating and processing based on the correction voltage parameter value, the correction current parameter value, and the target correction angle parameter value; a residual error value is obtained by calculating and processing based on the initial correction power parameter value and the initial standard power parameter value obtained by calibration using a standard electric energy meter; in the existing meter calibration method, the residual error value is taken into account to compensate for the measurement of the electric energy meter, so as to adjust the differences between individual electric energy meters and enable the method to be used on different electric energy meters. Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used for calculation processing to obtain a compensation value; and based on the correction parameter value and the residual error value, a preset compensation algorithm is used for calculation processing to obtain a compensation value; the power of the electric energy meter is compensated in real time. Thereby, the metering accuracy of the electric energy meter within the full power factor range is greatly improved, especially the metering accuracy near the power factor zero point. Based on the initial correction power parameter value and the compensation value, a calculation is performed to obtain a target power parameter value after compensation. The metering accuracy of the electric energy meter is improved.

[0132] Another embodiment of the present application provides an electronic device, which may be a server, and the electronic device includes a processor, a memory, a network interface, and a database connected via a system bus. The processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile and / or volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the electronic device is used to communicate with an external client via a network connection. When the electronic device program is executed by the processor, it implements the functions or steps of a service-side method for measuring and compensating an electric energy meter.

[0133] In one embodiment, an electronic device is provided, which may be a client. The electronic device includes a processor, a memory, a network interface, a display screen, and an input device connected via a system bus. The processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the electronic device is used to communicate with an external server via a network connection. When the electronic device program is executed by the processor, the functions or steps on the client side of an electric energy meter measurement compensation method are implemented.

[0134] Another embodiment of the present application provides an electronic device, comprising at least a memory and a processor, wherein the memory stores a computer program, and the processor implements the following method steps when executing the computer program in the memory:

[0135] Step 1: using the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value;

[0136] Step 2: determining a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval, wherein the target quadratic function is a cosine function or a sine function;

[0137] Step 3: Based on the correction angle parameter value, the target quadratic function is used to perform calculation processing to obtain a target correction angle parameter value;

[0138] Step 4: performing calculation based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain an initial correction power parameter value;

[0139] Step 5: Calculate and process the initial corrected power parameter value and the initial standard power parameter value obtained by correction processing using a standard electric energy meter to obtain a residual error value;

[0140] Step 6: Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used to perform calculation processing to obtain a compensation value;

[0141] Step seven: performing calculation processing based on the initial correction power parameter value and the compensation value to obtain a target power parameter value after compensation processing.

[0142] The specific implementation process of the above method steps can refer to the embodiments of any of the above-mentioned electric energy meter measurement compensation methods, and this embodiment will not be repeated here.

[0143] The present application uses an electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain a correction parameter value, wherein the correction parameter value includes at least one or more of a correction voltage parameter value, a correction current parameter value, and a correction angle parameter value; a target quadratic function corresponding to the correction angle parameter value is determined based on the correction angle parameter value and each preset angle interval; a target correction angle parameter value is obtained by calculating and processing using the target quadratic function based on the correction angle parameter value; an initial correction power parameter value is obtained by calculating and processing based on the correction voltage parameter value, the correction current parameter value, and the target correction angle parameter value; a residual error value is obtained by calculating and processing based on the initial correction power parameter value and the initial standard power parameter value obtained by calibration using a standard electric energy meter; in the existing meter calibration method, the residual error value is taken into account to compensate for the measurement of the electric energy meter, so as to adjust the differences between individual electric energy meters and enable the method to be used on different electric energy meters. Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used for calculation processing to obtain a compensation value; and based on the correction parameter value and the residual error value, a preset compensation algorithm is used for calculation processing to obtain a compensation value; the power of the electric energy meter is compensated in real time. Thereby, the metering accuracy of the electric energy meter within the full power factor range is greatly improved, especially the metering accuracy near the power factor zero point. Based on the initial correction power parameter value and the compensation value, a calculation is performed to obtain a target power parameter value after compensation. The metering accuracy of the electric energy meter is improved.

[0144] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A method for measuring and compensating an electric energy meter, characterized in that: include: The electric energy meter to be calibrated is used to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain calibration parameter values, wherein the calibration parameter values ​​include a calibration voltage parameter value, a calibration current parameter value, and a calibration angle parameter value; Determine a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval, wherein the target quadratic function is a cosine function or a sine function; Based on the correction angle parameter value, the target quadratic function is used to perform calculation processing to obtain a target correction angle parameter value; Performing calculation based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain an initial correction power parameter value; Performing calculation based on the initial corrected power parameter value and the initial standard power parameter value obtained by correction processing using a standard electric energy meter to obtain a residual error value; Based on the correction parameter value and the residual error value, a preset compensation algorithm corresponding to the target quadratic function is used to perform calculation processing to obtain a compensation value; A calculation process is performed based on the initial correction power parameter value and the compensation value to obtain a target power parameter value after compensation.

2. The electric energy meter measurement compensation method according to claim 1, characterized in that: The method of using the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain the calibration parameter value specifically includes: The electric energy meter to be calibrated is used to perform bias correction processing on the initial voltage signal and the initial current signal acquired in real time to obtain a bias correction parameter value; Using the electric energy meter to be calibrated to perform gain correction processing on the offset correction parameter value to obtain a gain correction parameter value; The electric energy meter to be calibrated is used to perform phase correction processing on the gain correction parameter value to obtain the correction parameter value.

3. The electric energy meter measurement compensation method according to claim 1, characterized in that: The determining a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval specifically includes: When the correction angle parameter value is within a first preset angle interval, the cosine function is determined as a target quadratic function corresponding to the correction angle parameter value; or When the correction angle parameter value is within a second preset angle interval, a sine function is determined as a target quadratic function corresponding to the correction angle parameter value.

4. The electric energy meter measurement compensation method according to claim 1, characterized in that: The step of performing calculation based on the correction angle parameter value and using the target quadratic function to obtain the target correction angle parameter value specifically includes: Based on the correction angle parameter value, a predetermined cosine function operation method is used to perform calculation processing to obtain a first target correction angle parameter value corresponding to the correction angle parameter value; or, Based on the correction angle parameter value, a predetermined sinusoidal function operation method is used to perform calculation processing to obtain a second target correction angle parameter value corresponding to the correction angle parameter value; The target correction angle parameter value is a first target correction angle parameter value or a second target correction angle parameter value.

5. The electric energy meter measurement compensation method according to claim 4, characterized in that: The calculation and processing based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain the initial correction power parameter value specifically includes: Perform multiplication processing based on the correction voltage parameter value, the correction current parameter value and the first target correction angle parameter value to obtain the initial correction power parameter value; or, The initial correction power parameter value is obtained by performing a multiplication operation based on the correction voltage parameter value, the correction current parameter value and the second target correction angle parameter value.

6. The electric energy meter measurement compensation method according to claim 4, characterized in that: The step of performing calculation processing based on the correction parameter value and the residual error value using a preset compensation algorithm corresponding to the target quadratic function to obtain a compensation value specifically includes: When the first target correction angle parameter value satisfies a first preset condition, performing calculation processing based on the first target correction angle parameter value, the quadratic term coefficient, the intercept constant and the residual error value to obtain a first compensation angle parameter value; The compensation value is obtained by performing calculation based on the first compensation angle parameter value, the correction voltage parameter value in the correction parameter value, and the correction current parameter value in the correction parameter value; or, When the second target correction angle parameter value satisfies a second preset condition, a calculation process is performed based on the second target correction angle parameter value, the quadratic term coefficient, the intercept constant and the residual error value to obtain a second compensation angle parameter value; The compensation value is obtained by performing calculation processing based on the second compensation angle parameter value, the correction voltage parameter value in the correction parameter value, and the correction current parameter value in the correction parameter value.

7. The electric energy meter measurement compensation method according to claim 5 or 6, characterized in that: The method further comprises: When the first target correction angle parameter value does not meet the first preset condition, or, When the second target correction angle parameter value does not satisfy the second preset condition, the obtained compensation value is 0.

8. An electric energy meter measurement compensation device, characterized in that: include: Correction module: used to use the electric energy meter to be calibrated to calibrate the initial voltage signal and the initial current signal acquired in real time to obtain correction parameter values, wherein the correction parameter values ​​include correction voltage parameter values, correction current parameter values, and correction angle parameter values; A determination module: used to determine a target quadratic function corresponding to the correction angle parameter value based on the correction angle parameter value and each preset angle interval, wherein the target quadratic function is a cosine function or a sine function; A target correction angle calculation module is used to calculate and process the target correction angle parameter value using the target quadratic function to obtain the target correction angle parameter value; An initial correction power calculation module is used to perform calculation based on the correction voltage parameter value, the correction current parameter value and the target correction angle parameter value to obtain an initial correction power parameter value; A residual error calculation module: used to perform calculation based on the initial corrected power parameter value and the initial standard power parameter value obtained by correction processing using a standard electric energy meter to obtain a residual error value; A compensation value calculation module: used to perform calculation processing based on the correction parameter value and the residual error value using a preset compensation algorithm corresponding to the target quadratic function to obtain a compensation value; Target power calculation module: used to perform calculation based on the initial correction power parameter value and the compensation value to obtain the target power parameter value after compensation.

9. A storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the electric energy meter measurement compensation method described in any one of claims 1 to 7 are implemented.

10. An electronic device, characterized in that: The method comprises at least a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the electric energy meter measurement compensation method according to any one of claims 1 to 7 when executing the computer program on the memory.

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