Impulse voltage peak value and time parameter full-range traceability implementation method and apparatus, device and storage medium

Abstract

The present application discloses an impulse voltage peak value and time parameter full-range traceability implementation method and apparatus, a device and a storage medium. The method comprises: on the basis of alternating-current scale factors of a pre-developed broadband voltage auxiliary standard instrument at different frequencies, using a pre-constructed scale factor weighting superposition model to determine an impulse scale factor of the broadband voltage auxiliary standard instrument; on the basis of the determined impulse scale factor of the broadband voltage auxiliary standard instrument, performing impulse scale factor calibration on a standard measurement device for an impulse voltage to be traced, so as to determine a standard impulse scale factor of said standard measurement device; using a voltage square wave source and an impulse voltage standard wave source to perform time parameter tracing on said standard measurement device so as to determine a calibrated time parameter of said standard measurement device; and on the basis of the standard impulse scale factor and the calibrated time parameter, determining the full-range traceability of the voltage peak value and the time parameter of said standard measurement device.

Description

A method, device, equipment and storage medium for tracing the full range of impulse voltage peak and time parameters

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202410064088.7, application date January 17, 2024, and invention name “A method and device for tracing the full range of impulse voltage peak value and time parameters”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of voltage measurement technology, and more specifically, to a method and apparatus, device, and storage medium for tracing the full range of impulse voltage peak and time parameters. Background Art

[0004] In power systems, switching overvoltage and lightning overvoltage can harm transmission lines and substation equipment, impacting the safe and stable operation of the power system. Common electrical equipment, such as insulators and transformers, must undergo impulse voltage withstand testing before leaving the factory to determine whether the equipment will experience insulation flashover or breakdown under known lightning impulse voltages. Furthermore, in online power system monitoring, accurate measurement of transient and impulse overvoltages in transmission lines and substations is crucial for insulation coordination of transmission lines and the economical design of insulation structures and dimensions of electrical equipment.

[0005] Since the high-voltage impulse signal being measured has the characteristics of high peak value, short duration, non-repetitive waveform, and wide frequency range, the currently more commonly used impulse voltage standard measurement devices include resistance voltage divider type and resistance-capacitance voltage divider type. Due to the characteristics of the measured signal, the distributed parameters have a great impact on the performance of the conversion device. How to accurately reproduce and measure the high-voltage impulse voltage signal is the most critical problem that impulse voltage measurement technology needs to solve.

[0006] Impulse voltage metrology studies the methods and equipment for tracing and transferring impulse voltage values. Impulse voltage testing is an important component of the quality assurance system for power equipment, and the accuracy of its measurement results has a direct impact on the safe operation of power equipment. An effective method for ensuring the accuracy and consistency of impulse high voltage measurement results from power equipment is value traceability. Impulse voltage value traceability involves proposing a complete impulse voltage traceability chain, establishing a widely recognized impulse voltage measurement standard system, using national standard devices to calibrate measurement devices of varying uncertainty levels, establishing a top-down impulse voltage value transfer system, and achieving unified impulse voltage values. Simultaneously, the values ​​of the national standard system are theoretically traced back to national standard values. During the traceability process, the uncertainty of the measurement results at each level of the traceability step must be determined, the law of uncertainty transfer during the traceability process must be studied, and the uncertainty of the value of the national standard device must be assessed.

[0007] The establishment of a traceability system for impulse voltage measurement is difficult due to the transient and immeasurable nature of stray parameters in the impulse voltage measurement process. The difficulty in establishing a theoretical system for impulse voltage traceability lies in linking the uncertainty of the amplitude and time parameters of the impulse voltage measurement system to the highest standard for all measured values ​​in the traceability process through a continuous traceability chain. The key research focus is also on assessing the uncertainty of the measurement system—that is, deriving the uncertainty of the measurement system from the uncertainty of each measured quantity obtained at each traceability step using a reasonable uncertainty assessment model.

[0008] How to improve the scale factor calibration voltage of the impulse voltage divider, narrow the voltage range of the linearity test of the impulse voltage standard measuring device, reduce the measurement uncertainty in the impulse voltage value traceability process, and improve the overall measurement technology level of the impulse voltage standard measurement system are issues that urgently need to be solved by researchers in my country's impulse voltage measurement technology.

[0009] Summary of the Invention

[0010] In response to the deficiencies in the prior art, the present application provides a method, device, equipment, and storage medium for tracing the full range of impulse voltage peak and time parameters.

[0011] According to one aspect of the present application, a method for tracing the full range of impulse voltage peak and time parameters is provided, comprising:

[0012] According to the AC scale factors of the pre-developed wide-band voltage auxiliary standard at different frequencies, the impact scale factor of the wide-band voltage auxiliary standard is determined using a pre-built scale factor weighted superposition model.

[0013] Calibrate the impulse calibration factor of the impulse voltage standard measuring device to be traced according to the determined impulse calibration factor of the broadband voltage auxiliary standard, and determine the standard impulse calibration factor of the impulse voltage standard measuring device;

[0014] Using a voltage square wave source and an impulse voltage standard wave source to trace the time parameters of the impulse voltage standard measuring device, and determine the calibration time parameters of the impulse voltage standard measuring device;

[0015] According to the standard impulse scale factor and calibration time parameters, the full-scale traceability of the voltage peak and time parameters of the impulse voltage standard measuring device is determined.

[0016] Optionally, the scale factor weighted overlay model is:

[0017] Where k impulse k is the impulse scale factor measured by the voltage divider when the standard impulse voltage waveform is input to the impulse voltage standard measuring device; low S is the AC scale factor corresponding to the input of low-frequency AC voltage to the voltage divider. i is the input impulse waveform U p1 After Fourier decomposition, the weight coefficient of the AC voltage waveform corresponding to each frequency band; k i It is the AC scale factor corresponding to each frequency band after Fourier decomposition of the impulse voltage waveform.

[0018] Optionally, the broadband voltage auxiliary standard includes two broadband capacitive voltage dividers of 300kV and 800kV, and

[0019] Based on the AC scale factors of the pre-developed wide-band voltage auxiliary standard at different frequencies, the impact scale factor of the wide-band voltage auxiliary standard is determined using a pre-built scale factor weighted superposition model, including:

[0020] Obtain the AC scale factor of each broadband capacitive voltage divider at different frequencies;

[0021] The AC scale factors of each broadband capacitive voltage divider at different frequencies are substituted into the scale factor weighted superposition model to determine the impact scale factors of each broadband capacitive voltage divider at different frequencies.

[0022] Optionally, calibrating the impulse calibration factor of the impulse voltage standard measuring device to be traced according to the determined impulse calibration factor of the broadband voltage auxiliary standard to determine the standard impulse calibration factor of the impulse voltage standard measuring device includes:

[0023] The impulse scale factor of the impulse voltage standard measuring device is calibrated by using different broadband capacitance voltage dividers by using the comparison method.

[0024] Use a voltage square wave source, an impulse voltage standard wave source, and a standard AC voltage source to obtain the impulse scale factor of a digital recorder of an impulse voltage standard measuring device;

[0025] Determine the standard impulse scale factor of the impulse voltage standard measuring device based on the impulse scale factor of the impulse voltage standard measuring device and the impulse scale factor of the digital recorder.

[0026] Optionally, tracing the time parameters of the impulse voltage standard measuring device by using a voltage square wave source and an impulse voltage standard wave source to determine the calibration time parameters of the impulse voltage standard measuring device includes:

[0027] According to the square wave response of the impulse voltage standard measuring device after traceability, the convolution method is used to calculate the measurement error of the wavefront time parameter of the impulse voltage waveform of the impulse voltage standard measuring device;

[0028] The measurement error of the wave tail time parameter of the digital recorder of the impulse voltage standard measuring device was calibrated using a 1kV impulse voltage standard wave source;

[0029] The time parameters of the impulse voltage standard measuring device are calibrated according to the wavefront time parameter measurement error and the wavetail time parameter measurement error to determine the calibration time parameter.

[0030] According to another aspect of the present application, a device for tracing the full range of impulse voltage peak and time parameters is provided, comprising:

[0031] A first determination module is configured to determine the impact scale factor of the broadband voltage auxiliary standard according to the AC scale factors of the pre-developed broadband voltage auxiliary standard at different frequencies and using a pre-built scale factor weighted superposition model;

[0032] A second determining module is configured to calibrate the impulse calibration factor of the impulse voltage standard measuring device to be traced according to the determined impulse calibration factor of the broadband voltage auxiliary standard, and determine the standard impulse calibration factor of the impulse voltage standard measuring device;

[0033] A third determination module is configured to use a voltage square wave source and an impulse voltage standard wave source to trace the time parameters of the impulse voltage standard measurement device to determine the calibration time parameters of the impulse voltage standard measurement device;

[0034] The fourth determination module is configured to determine the full-scale traceability of the voltage peak value and time parameters of the impulse voltage standard measuring device according to the standard impulse scale factor and the calibration time parameter.

[0035] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the storage medium stores a computer program, and the computer program is used to execute the method described in any one of the above aspects of the present application.

[0036] According to another aspect of the present application, an electronic device is provided, comprising: a processor; a memory for storing instructions executable by the processor; and the processor for reading the executable instructions from the memory and executing the instructions to implement the method described in any one of the above aspects of the present application.

[0037] Thus, accurate traceability of the impulse voltage peak value of the impulse voltage divider is achieved based on the weighted superposition of multiple frequency scale factors. Based on a broadband capacitive voltage divider, the impulse voltage scale factor of the impulse voltage standard conversion device under high voltage can be obtained, greatly reducing the measurement uncertainty component introduced by linearity, and thus reducing the peak measurement uncertainty of the entire impulse voltage standard measurement system. This solves the problems of theoretical gaps in the current internationally used impulse voltage value traceability method, large measurement uncertainty during the impulse voltage value traceability process, and difficulty in further improving the measurement capabilities of standard measurement devices, laying a theoretical foundation for establishing a national impulse voltage standard measurement system. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] A more complete understanding of exemplary embodiments of the present application may be obtained by referring to the following drawings:

[0039] FIG1 is a flow chart of a method for tracing the full range of impulse voltage peak and time parameters provided by an exemplary embodiment of the present application;

[0040] FIG2 is a schematic diagram of an impulse voltage measurement system provided by an exemplary embodiment of the present application;

[0041] 3 is a schematic diagram of a method for tracing the scale factor and time parameters of an impulse voltage standard measurement device provided by an exemplary embodiment of the present application;

[0042] FIG4 is a schematic diagram of the traceability of the A / D data acquisition unit and calculation software in the impact digital recorder provided by an exemplary embodiment of the present application;

[0043] FIG5 is a block diagram of a shock digital recorder according to an exemplary embodiment of the present application;

[0044] FIG6 is a block diagram of the overall value traceability of an impulse voltage measurement system provided by an exemplary embodiment of the present application;

[0045] 7 is a schematic structural diagram of a device for tracing the impulse voltage peak value and time parameters over the entire range provided by an exemplary embodiment of the present application;

[0046] FIG8 shows the structure of an electronic device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0047] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described herein.

[0048] It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

[0049] Those skilled in the art will understand that the terms "first" and "second" in the embodiments of the present application are only used to distinguish different steps, devices or modules, and do not represent any specific technical meanings, nor do they indicate a necessary logical order between them.

[0050] It should also be understood that in the embodiments of the present application, "plurality" may refer to two or more than two, and "at least one" may refer to one, two or more than two.

[0051] It should also be understood that any component, data or structure mentioned in the embodiments of the present application can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0052] In addition, the term "and / or" in this application is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0053] It should also be understood that the description of each embodiment in this application focuses on the differences between the embodiments, and the same or similar aspects can be referenced with each other. For the sake of brevity, they will not be described one by one.

[0054] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0055] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0056] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0057] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0058] The embodiments of the present application can be applied to electronic devices such as terminal devices, computer systems, and servers, and can operate with a variety of other general-purpose or special-purpose computing system environments or configurations. Examples of well-known terminal devices, computing systems, environments, and / or configurations suitable for use with terminal devices, computer systems, servers, and other electronic devices include, but are not limited to, personal computer systems, server computer systems, thin clients, thick clients, handheld or laptop devices, microprocessor-based systems, set-top boxes, programmable consumer electronics, network personal computers, minicomputer systems, mainframe computer systems, and distributed cloud computing technology environments including any of the above systems, etc.

[0059] Electronic devices such as terminal devices, computer systems, and servers can be described in the general context of computer system-executable instructions (such as program modules) executed by a computer system. Generally, program modules can include routines, programs, object programs, components, logic, data structures, etc., which perform specific tasks or implement specific abstract data types. Computer systems / servers can be implemented in a distributed cloud computing environment, where tasks are performed by remote processing devices linked via a communication network. In a distributed cloud computing environment, program modules can be located on local or remote computing system storage media, including storage devices.

[0060] Exemplary Methods

[0061] FIG1 is a flow chart of a method for tracing the full range of impulse voltage peak and time parameters provided by an exemplary embodiment of the present application. This embodiment can be applied to electronic devices. As shown in FIG1 , the method 100 for tracing the full range of impulse voltage peak and time parameters includes the following steps:

[0062] Step 101, determining the impact scale factor of the broadband voltage auxiliary standard according to the AC scale factors of the pre-developed broadband voltage auxiliary standard at different frequencies and using a pre-built scale factor weighted superposition model;

[0063] Optionally, the scale factor weighted overlay model is:

[0064] Where k impulse k is the impulse scale factor measured by the voltage divider when the standard impulse voltage waveform is input to the impulse voltage standard measuring device; low S is the AC scale factor corresponding to the input of low-frequency AC current to the voltage divider. i is the input impulse waveform Up1 After Fourier decomposition, the weight coefficient of the AC voltage waveform corresponding to each frequency band; k i It is the AC scale factor corresponding to each frequency band after Fourier decomposition of the impulse voltage waveform.

[0065] Optionally, the broadband voltage auxiliary standard includes two broadband capacitive voltage dividers of 300kV and 800kV, and

[0066] Based on the AC scale factors of the pre-developed wide-band voltage auxiliary standard at different frequencies, the impact scale factor of the wide-band voltage auxiliary standard is determined using a pre-built scale factor weighted superposition model, including:

[0067] Obtain the AC scale factor of each broadband capacitive voltage divider at different frequencies;

[0068] The AC scale factors of each broadband capacitor voltage divider at different frequencies are substituted into the scale factor weighted superposition model to determine the impulse scale factor of each broadband capacitor voltage divider under a certain impulse voltage waveform.

[0069] Specifically, the process of determining the multi-frequency decomposition and scale factor weighted superposition model of the impulse voltage waveform is as follows:

[0070] Any function can be expressed as the sum of many sine and cosine functions of different frequencies, and the amplitude and phase of these frequencies can be obtained through Fourier transform. Therefore, the impulse voltage can also be decomposed into a series of sinusoidal AC waveforms of different frequencies. The voltage amplitude problem in the time domain is converted into a weighted superposition of various AC components in the frequency domain to evaluate the voltage peak:

[0071] When the input impulse waveform of any impulse voltage standard measuring device is Up1 and the output waveform is Up2, the following formula can be obtained by performing Fourier decomposition and series derivation on the input and output waveforms, and ignoring the extremely small influencing components in the formula derivation process:

[0072] Among them, k impulse k is the impulse scale factor measured by the voltage divider when the standard impulse voltage waveform is input to the impulse voltage standard measuring device; low S is the AC scale factor corresponding to the input of low-frequency AC current to the voltage divider. i is the input impulse waveform U p1 After Fourier decomposition, the weight coefficient of the AC voltage waveform corresponding to each frequency band; k iThe AC scale factor corresponding to each frequency band after Fourier decomposition of the impulse voltage waveform. From this model, it can be concluded that when the impulse scale factor of a certain impulse voltage standard measuring device cannot be accurately obtained, but the accurate scale factor of the conversion device under AC voltage at different frequencies can be obtained, the accurate impulse voltage scale factor of the impulse voltage divider can be obtained according to formula (2).

[0073] Related instructions:

[0074] k low The AC scale factor corresponding to the input of low-frequency AC current to the voltage divider is calculated to be DC to 100 Hz.

[0075] According to the characteristics of impulse voltage decomposition, the frequency range is DC to 10 MHz. The frequency range is divided into two parts: a logarithmic method, including:

[0076] Within the frequency range of DC to 100Hz, set the frequency interval to 10Hz;

[0077] The frequency range is 100Hz to 1kHz, and the frequency interval is set to 100Hz;

[0078] The frequency range is 1kHz to 10kHz, and the frequency interval is set to 1kHz;

[0079] The frequency range is 10kHz to 100kHz, and the frequency interval is set to 10kHz;

[0080] The frequency range is 100kHz to 1MHz, and the frequency interval is set to 100kHz;

[0081] The frequency range is 1MHz to 10MHz, and the frequency interval is set to 1MHz.

[0082] The significance of determining this theoretical model is that for a voltage measuring device, if its accurate impulse scale factor is unknown, but its accurate AC scale factor at different frequencies can be obtained, its impulse voltage scale factor can be determined.

[0083] Furthermore, the principle of developing a broadband voltage auxiliary standard in this application is as follows:

[0084] Since the high-voltage resistor of the impulse resistor divider is generally wound with a resistance wire of about 10kΩ, the diameter of the resistance wire is about 0.12mm to 0.2mm depending on the voltage level. Due to the small diameter of the resistance wire and the limitation of heat capacity, the resistor divider cannot be used to measure low-frequency high-voltage signals. Therefore, if it is necessary to obtain the scale factor and linearity of the impulse voltage of the impulse measurement device under high voltage, a transfer standard is required. The transfer carrier needs to have a wide-band response characteristic, which can accurately measure the high-voltage low-frequency AC voltage to the lightning impulse voltage waveform, and then calculate the impact scale factor value based on the AC scale factor value of each frequency segment in the low-frequency to high-frequency range. Since the broadband standard capacitor has this measurement characteristic, the broadband standard capacitor divider is selected as the broadband voltage auxiliary standard in this application.

[0085] A 1kV to 800kV cross-frequency domain broadband standard capacitor divider was developed, including two broadband capacitor dividers, 300kV and 800kV. This standard capacitor divider is based on a standard capacitor design with a vertical shield structure. The capacitor electrodes in the high-voltage arm are coaxially designed, including high-voltage electrodes, low-voltage electrodes, and shield electrodes. The low-voltage arm capacitor of the divider is tightly connected to the low-voltage electrode in the high-voltage arm, and the voltage coefficient and temperature coefficient of the low-voltage arm capacitor are kept as consistent as possible with those of the high-voltage arm. Because the high-voltage arm of the divider is a coaxial electrode structure, the electric fields of different frequencies generated at different frequencies and the same voltage have equivalent forces on the high-voltage arm capacitor. In addition, compressed gas standard capacitors are recognized to have low voltage coefficients, temperature coefficients, and excellent capacitance stability. Therefore, this voltage divider has excellent broadband characteristics and can be used as a cross-frequency domain traceability divider.

[0086] Furthermore, the steps for determining the impact calibration factor of the broadband auxiliary standard device are as follows:

[0087] 1. Determination of the impulse scale factor of 300kV broadband capacitor voltage divider:

[0088] 1) Obtain the AC scale factor at different frequencies:

[0089] Determination of 50Hz scale factor: The power frequency voltage scale factor of the 300kV broadband capacitor voltage divider is calibrated at rated voltage using a power frequency voltage scale standard device. The power frequency voltage scale factor k50-300 obtained at this time can be traced back to the national power frequency voltage scale standard, and the linearity under power frequency voltage is obtained.

[0090] Determination of the scale factor in the range of 10 Hz to 1 MHz: Use a standard AC voltage source with a frequency of 10 Hz to 1 MHz to calibrate the output voltage / input voltage ratio of a 300 kV broadband capacitor voltage divider to obtain the ki value at different frequencies.

[0091] Determination of the scale factor in the range of 1MHz to 10MHz: Use a voltage square wave source to measure the step wave response g(t) of the impulse voltage standard measurement device, adopt an analytical method to fit the standard AC voltage digital waveform, and use the convolution method to calculate the output voltage waveform of the 1MHz to 10MHz AC voltage, thereby obtaining the output voltage / input voltage ratio of the 300kV broadband capacitor voltage divider.

[0092] 2) Calculate the impact scale factor:

[0093] Based on the AC scale factor of the broadband capacitor voltage divider at different frequencies obtained in the previous step, substitute it into formula (1). For a known impulse voltage input waveform, k low If the value is known, the impulse scale factor k of the 300kV broadband capacitor voltage divider can be obtained. impulse :

[0094] 2. Determination of the impulse scale factor of 800kV broadband capacitor voltage divider:

[0095] The calibration method of the impulse scale factor of the 800kV broadband capacitor voltage divider is the same as that of the 300kV broadband capacitor voltage divider.

[0096] Step 102, calibrating the impulse calibration factor of the impulse voltage standard measuring device to be traced according to the determined impulse calibration factor of the broadband voltage auxiliary standard, and determining the standard impulse calibration factor of the impulse voltage standard measuring device;

[0097] Optionally, calibrating the impulse calibration factor of the impulse voltage standard measuring device to be traced according to the determined impulse calibration factor of the broadband voltage auxiliary standard to determine the standard impulse calibration factor of the impulse voltage standard measuring device includes:

[0098] The impulse scale factor of the impulse voltage standard measuring device is calibrated by using different broadband capacitance voltage dividers by using the comparison method.

[0099] Use a voltage square wave source, an impulse voltage standard wave source, and a standard AC voltage source to obtain the impulse scale factor of a digital recorder of an impulse voltage standard measuring device;

[0100] Determine the standard impulse scale factor of the impulse voltage standard measuring device based on the impulse scale factor of the impulse voltage standard measuring device and the impulse scale factor of the digital recorder.

[0101] Specifically, the determination of the scale factor in the impulse voltage standard measuring device includes two parts, namely, the impulse scale factor k of the impulse voltage standard measuring device and d Determination of the impact scale factor k of the digital recorder rThe standard impulse scale factor of the whole set of impulse voltage standard measuring device can be obtained by multiplying the two: k = k d ×k r .

[0102] 1. Impact scale factor k of impulse voltage standard measuring device d Determination of:

[0103] Based on the determined impulse calibration factors of the 300 kV broadband capacitive voltage divider and the 800 kV broadband capacitive voltage divider, a comparison method was adopted under impulse high voltage to calibrate the impulse calibration factor of the impulse voltage standard measuring device using the broadband capacitive voltage divider, as shown in Figure 2.

[0104] (1) Using a 300kV broadband capacitive voltage divider to calibrate the high voltage impulse scale factor k of the impulse voltage divider in the 60kV and 300kV impulse voltage standard measurement systems d60 、k d300 and linearity, the impulse voltage wavefront time during calibration is greater than 1.2μs.

[0105] (2) Using an 800kV broadband capacitive voltage divider to calibrate the 1200kV impulse voltage standard, measure the high voltage impulse scale factor k of the voltage divider. d1200 , and linearity within the voltage range of (200~800)kV, the impulse voltage wavefront time during calibration is greater than 1.2μs.

[0106] (3) In the range of 800kV to 1200kV, the linearity test of the 1200kV impulse voltage standard measurement divider can be carried out using three verification schemes: 1) efficiency method based on the impulse voltage generator; 2) based on the spatial transient spherical electric field measuring instrument; 3) comparison with a standard capacitive voltage divider with excellent linearity.

[0107] 2. Impact scale factor k of digital recorder r Origin:

[0108] Use a voltage square wave source, a standard impulse voltage wave source, and a standard AC voltage source to obtain the impulse scale factor of the digital recorder. The parameter requirements for the instruments used in the traceability test are as follows:

[0109] a. The rise time of the voltage square wave source is less than 5ns and the pulse width is greater than 1ms;

[0110] b. Standard impulse voltage wave source, output voltage waveform 0.86 / 60, 1.2 / 60, 1.56 / 60, peak value and time parameters can be traced back to the national standards of DC voltage, resistance, capacitance and inductance components.

[0111] The shock digital recorder is composed of an attenuator and a digital acquisition unit connected in series. The value traceability part thereof includes the traceability of the shock scale factor of the digital acquisition unit alone and the traceability of the shock scale factor of the entire shock digital recorder.

[0112] 1) Impact scale factor of the data acquisition unit in the digital recorder:

[0113] a. Use a standard 10Hz to 1MHz AC voltage source to calibrate the output voltage / input voltage ratio of the measurement device; use a voltage square wave source to measure the step wave response g(t) of the data acquisition unit, use an analytical method to fit the standard AC voltage digital waveform, and use a convolution method to calculate the output voltage waveform of the 1MHz to 10MHz data acquisition unit, thereby obtaining the output voltage / input voltage ratio of the data acquisition unit;

[0114] b. Substitute the measurement results into the multi-frequency decomposition model to calculate the impact scale factors of the data acquisition unit for five different ranges: ±1V, ±2V, ±5V, and ±10V. Then write the impact scale factors into the software for error compensation.

[0115] 2) Impact scale factor k of digital recorder r :

[0116] Use the impulse voltage standard measuring device to calibrate the impulse scale factor of the digital recorder to obtain the impulse scale factor of different measurements.

[0117] 3. Determination of the impact scale factor of the entire measurement system:

[0118] 60kV impulse voltage measurement system impulse scale factor: k 60 =k d60 ×k r ;

[0119] 300kV impulse voltage measurement system impulse scale factor: k 300 =k d300 ×k r ;

[0120] 1200kV impulse voltage measurement system impulse scale factor: k 1200 =k d1200 ×k r .

[0121] In addition, the present application develops three impulse resistor dividers as standard voltage dividers as impulse voltage conversion devices in the impulse voltage measurement system, with rated voltage levels of 60kV, 300kV, and 1200kV, respectively. The high-voltage resistor is wound with a resistance wire with a temperature coefficient of less than 10ppm. The internal design of the voltage divider is based on an equipotential shielding structure, and its internal high-voltage resistor is composed of a measuring resistor and a shielding resistor in parallel. At the same physical height, the potentials of the shielding resistor and the measuring resistor are almost equal, thereby greatly reducing the stray capacitance of the measuring branch to the ground, thereby improving the response time of the voltage divider device, shortening the square wave response rise time of the impulse resistor divider, and expanding the impulse voltage measurement range.

[0122] Step 103, using a voltage square wave source and an impulse voltage standard wave source to trace the time parameters of the impulse voltage standard measuring device, and determine the calibration time parameters of the impulse voltage standard measuring device;

[0123] Optionally, tracing the time parameters of the impulse voltage standard measuring device by using a voltage square wave source and an impulse voltage standard wave source to determine the calibration time parameters of the impulse voltage standard measuring device includes:

[0124] According to the square wave response of the impulse voltage standard measuring device after traceability, the convolution method is used to calculate the measurement error of the wavefront time parameter of the impulse voltage waveform of the impulse voltage standard measuring device;

[0125] The measurement error of the wave tail time parameter of the digital recorder of the impulse voltage standard measuring device was calibrated using a 1kV impulse voltage standard wave source;

[0126] The time parameters of the impulse voltage standard measuring device are calibrated according to the wavefront time parameter measurement error and the wavetail time parameter measurement error to determine the calibration time parameter.

[0127] Specifically, the steps for tracing the time parameters are as follows:

[0128] 1) Use a voltage square wave source to trace the time parameters.

[0129] According to the square wave response g(t) of the 60kV, 300kV, and 1200kV impulse voltage standard measuring devices, the square wave response waveform of the voltage divider is collected using the data acquisition unit of a digital oscilloscope or digital recorder, and the convolution method is used to calculate the time parameter measurement error δ1 of the impulse voltage waveform.

[0130] In addition, when measuring a 1200kV impulse voltage standard measuring device, the square wave responses of 60kV, 300kV, and 1200kV impulse voltage standard measuring devices are measured. If measuring other voltage levels, the multiple voltage series impulse voltage standard measuring devices to be measured are determined according to the measured voltage level.

[0131] 2) Time parameter error verification:

[0132] a. Use a 1kV impulse voltage standard wave source to calibrate the time parameter measurement error δ2 of the entire impulse voltage measurement system.

[0133] b. Verify the consistency of δ1 and δ2.

[0134] Step 104 : Determine the full-scale traceability of the voltage peak value and time parameters of the impulse voltage standard measuring device according to the standard impulse scale factor and the calibration time parameter.

[0135] In addition, this application is based on Parseval's theorem. The energy accumulation of the same impulse voltage waveform in the time domain is equivalent to the energy level in the frequency domain. Based on this, it can be deduced that for any voltage measuring device, the inverse of the scale factor of its impulse voltage can be equivalent to the weighted sum of the inverses of the scale factors under different frequency AC voltages. The weighting coefficient S is i The determination is based on the results of the frequency decomposition of the measured impulse voltage waveform.

[0136] The specific implementation method is as follows: perform Fourier decomposition on the lightning full wave to be measured by the impulse resistor divider. According to the Fourier frequency decomposition result, the amplitude weight coefficient S of the AC voltage in each frequency band can be determined. i The AC scale factor of the broadband capacitive voltage divider in each frequency band is obtained through experimental methods and substituted into the synthetic calculation formula of the impulse scale factor to complete the calculation of the impulse scale factor of the broadband voltage auxiliary standard.

[0137] Figure 3 is a flowchart of the traceability process for the impulse voltage standard measuring device. Two traceability tests were carried out on the 60kV, 300kV, and 1200kV impulse voltage standard measuring devices: (1) Scale factor and linearity test: The impulse scale factor and linearity parameters of the impulse voltage standard measuring device were obtained by comparing them with the 300kV and 800kV broadband capacitor voltage divider devices. The value of its impulse scale factor can ultimately be traced back to the national industrial frequency voltage reference and AC voltage standard; (2) Time parameter traceability: Square wave response tests were carried out on the three impulse voltage standard measuring devices respectively. Based on the convolution calculation of the square wave response test waveform, the error value of each time parameter of each impulse voltage standard measuring device can be obtained.

[0138] Figure 4 is a flowchart of the traceability process for the data acquisition unit in the shock digital recorder. An AC voltage standard wave source is used to calibrate the AC scale factor of the data acquisition unit at each frequency band. The shock scale factor of the digital acquisition unit is calculated based on the superposition of the AC scale factors at different frequencies. An oscilloscope calibrator is used to calibrate the time parameter error of the data acquisition unit. The TDG (waveform test generator) in IEC 61083 is used to calibrate the peak and time parameter measurement errors of the shock calculation software.

[0139] Figure 5 shows the traceability block diagram of the shock digital recorder. (1) First, a standard shock voltage wave source is used to directly calibrate the shock scale factor and time parameter measurement error of the shock digital recorder. (2) Then, an AC voltage standard wave source is used to calibrate the AC scale factor of its frequency bands, and the shock scale factor is calculated based on a weighted superposition model of scale factors. The calculation results in (2) can be used to verify the accuracy of the shock scale factor calibration in step (1).

[0140] Figure 6 shows the traceability block diagram for the impulse peak and time parameters of the entire impulse voltage measurement system. The AC voltage standard wave source used in this traceability process is traceable to the AC voltage standard of the National Institute of Metrology. The peak and time parameters of the impulse voltage standard wave source used in this traceability process are traceable to the National Institute of Metrology's DC voltage standard and RLC national standard. The time parameter values ​​of the voltage square wave source used in this traceability process are traceable to the National Institute of Metrology's oscilloscope calibrator standard device.

[0141] Therefore, compared with the prior art, the present application can achieve the following beneficial effects:

[0142] (1) This method realizes accurate value traceability of the impulse voltage peak value of the impulse divider based on the weighted superposition of multiple frequency scale factors, which solves the theoretical defects of the previous impulse voltage value traceability method. The previous method mainly uses 1kV AC power supply or DC power supply or impulse power supply to calibrate the scale factor of the impulse divider, and assumes that the 50Hz or DC scale factor is equivalent to the impulse scale factor. When using the method of weighted superposition of multiple frequency scale factors for impulse voltage value traceability, the scale factor calibration of the voltage divider can be completed at high voltage, which is more accurate and the evaluated measurement uncertainty is smaller;

[0143] (2) This method uses a broadband capacitive voltage divider based on a vertical standard capacitor as an auxiliary traceability standard for the impulse voltage value. Since the electrodes in the standard capacitor are coaxial, the impulse electric field and the AC electric field act on them equivalently, so it has good frequency characteristics and can be used as the best transmission carrier for tracing the impulse voltage peak value (scale factor);

[0144] (3) In the impulse voltage traceability method proposed in the present invention, based on the auxiliary standard device of the broadband capacitive voltage divider, the impulse voltage scale factor of the impulse voltage standard conversion device under high voltage can be obtained, thereby greatly reducing the measurement uncertainty component introduced by linearity, and further reducing the peak measurement uncertainty of the entire impulse voltage standard measurement system;

[0145] (4) The scale factor calibration voltage of the 1200kV impulse voltage divider is 800kV, and the linearity test range is 800kV to 1200kV, which greatly narrows the linearity test range of the impulse voltage standard measuring device and reduces the measurement uncertainty introduced by the linearity test;

[0146] (5) The value traceability method determined in the present invention is applicable to impulse voltage dividers of various rated voltage levels and has wide application and universality;

[0147] (6) This value traceability method has laid a solid theoretical foundation for establishing the highest measurement standard for impulse voltage in my country, and ensured the accuracy and uniformity of impulse voltage in my country.

[0148] Exemplary devices

[0149] FIG7 is a schematic diagram of a device for tracing the full range of impulse voltage peak and time parameters provided by an exemplary embodiment of the present application. As shown in FIG7 , the device 700 includes:

[0150] A first determination module 710 is configured to determine the impact calibration factor of the broadband voltage auxiliary standard according to the AC calibration factors of the pre-developed broadband voltage auxiliary standard at different frequencies and using a pre-built calibration factor weighted superposition model;

[0151] The second determining module 720 is configured to calibrate the impulse calibration factor of the impulse voltage standard measuring device to be traced according to the determined impulse calibration factor of the broadband voltage auxiliary standard, and determine the standard impulse calibration factor of the impulse voltage standard measuring device;

[0152] The third determining module 730 is configured to use the voltage square wave source and the impulse voltage standard wave source to trace the time parameters of the impulse voltage standard measuring device to determine the calibration time parameters of the impulse voltage standard measuring device;

[0153] The fourth determining module 740 is configured to determine the full-scale traceability of the voltage peak value and time parameter of the impulse voltage standard measuring device according to the standard impulse scale factor and the calibration time parameter.

[0154] Optionally, the scale factor weighted overlay model is:

[0155] Where k impulsek is the impulse scale factor measured by the voltage divider when the standard impulse voltage waveform is input to the impulse voltage standard measuring device; low S is the AC scale factor corresponding to the input of low-frequency AC voltage to the voltage divider. i is the input impulse waveform U p1 After Fourier decomposition, the weight coefficient of the AC voltage waveform corresponding to each frequency band; k i It is the AC scale factor corresponding to each frequency band after Fourier decomposition of the impulse voltage waveform.

[0156] Optionally, the broadband voltage auxiliary standard includes two broadband capacitive voltage dividers of 300kV and 800kV, and

[0157] The first determining module 710 includes:

[0158] A first acquisition submodule is configured to respectively acquire the AC scale factor of each broadband capacitive voltage divider at different frequencies;

[0159] The first determination submodule is configured to substitute the AC scale factor of each broadband capacitive voltage divider at different frequencies into the scale factor weighted superposition model to determine the impact scale factor of each broadband capacitive voltage divider at different frequencies.

[0160] Optionally, the second determining module 720 includes:

[0161] a calibration submodule configured to calibrate an impulse scale factor of an impulse voltage standard measuring device using different broadband capacitive voltage dividers by using a comparison method;

[0162] A second acquisition submodule is configured to obtain an impulse scale factor of a digital recorder of an impulse voltage standard measuring device using a voltage square wave source, an impulse voltage standard wave source, and a standard AC voltage source;

[0163] The second determining submodule is configured to determine a standard impulse calibration factor of the impulse voltage standard measuring device according to the impulse calibration factor of the impulse voltage standard measuring device and the impulse calibration factor of the digital recorder.

[0164] Optionally, the third determining module 730 includes:

[0165] a calculation submodule configured to calculate a wavefront time parameter measurement error of an impulse voltage waveform of the impulse voltage standard measurement device using a convolution method based on a square wave response of the impulse voltage standard measurement device after traceability;

[0166] A first calibration submodule is configured to calibrate a wave tail time parameter measurement error of a digital recorder of an impulse voltage standard measuring device using a 1 kV impulse voltage standard wave source;

[0167] The second calibration submodule is configured to calibrate the time parameters of the impulse voltage standard measuring device according to the wavefront time parameter measurement error and the wavetail time parameter measurement error to determine the calibration time parameter.

[0168] Exemplary electronic devices

[0169] FIG8 shows the structure of an electronic device provided by an exemplary embodiment of the present application. As shown in FIG8 , the electronic device 80 includes one or more processors 81 and a memory 82 .

[0170] The processor 81 may be a central processing unit (CPU) or other forms of processing units with data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device to perform desired functions.

[0171] The memory 82 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may, for example, include random access memory (RAM) and / or cache memory, etc. The non-volatile memory may, for example, include read-only memory (ROM), a hard disk, a flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 81 may run the program instructions to implement the methods of the software programs of the various embodiments of the present application described above and / or other desired functions. In one example, the electronic device may further include: an input device 83 and an output device 84, which are interconnected via a bus system and / or other forms of connection mechanisms (not shown).

[0172] In addition, the input device 83 may also include, for example, a keyboard, a mouse, and the like.

[0173] The output device 84 can output various information to the outside. The output device 84 can include, for example, a display, a speaker, a printer, a communication network and a remote output device connected thereto.

[0174] Of course, for the sake of simplicity, FIG8 only shows some of the components of the electronic device related to the present application, omitting components such as a bus, input / output interface, etc. In addition, the electronic device may further include any other appropriate components depending on the specific application.

[0175] Exemplary computer program products and computer-readable storage media

[0176] In addition to the above-mentioned methods and devices, an embodiment of the present application may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to execute the steps of the method according to various embodiments of the present application described in the above-mentioned "Exemplary Method" section of this specification.

[0177] The computer program product may be written in any combination of one or more programming languages ​​to implement the program code for performing the operations of the embodiments of the present application, including object-oriented programming languages ​​such as Java, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0178] In addition, an embodiment of the present application may also be a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, enable the processor to execute the steps of the method according to various embodiments of the present application described in the above "Exemplary Method" section of this specification.

[0179] The computer-readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can, for example, include but is not limited to a system, system or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable 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 disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0180] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0181] Each embodiment in this specification is described in a progressive manner, with each embodiment focusing on its differences from the other embodiments. References to the same or similar parts between the various embodiments are sufficient. For system embodiments, since they largely correspond to method embodiments, their description is relatively simple. For relevant parts, references to the description of the method embodiments are sufficient.

[0182] The block diagrams of the devices, systems, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, systems, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0183] The methods and systems of the present application may be implemented in many ways. For example, the methods and systems of the present application may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of steps for the method is for illustration only, and the steps of the method of the present application are not limited to the order specifically described above unless otherwise specified. In addition, in some embodiments, the present application may also be implemented as a program recorded on a recording medium, which includes machine-readable instructions for implementing the methods according to the present application. Therefore, the present application also covers recording media that store programs for executing the methods according to the present application.

[0184] It should also be noted that, in the system, device and method of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present application. The above description of the disclosed aspects is provided to enable any technician in this field to make or use the present application. Various modifications to these aspects will be very obvious to those skilled in the art, and the general principles defined here can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown here, but in accordance with the widest scope consistent with the principles disclosed here and the novel features.

[0185] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof. Industrial Applicability

[0186] The present application provides a method and apparatus, device, and storage medium for full-scale traceability of impulse voltage peak and time parameters. The method comprises the following steps: determining the impulse scale factor of a pre-developed wide-band voltage auxiliary standard at different frequencies using a pre-constructed scale factor weighted superposition model; calibrating the impulse scale factor of an impulse voltage standard measuring device to be traced based on the determined impulse scale factor of the wide-band voltage auxiliary standard to determine the standard impulse scale factor of the impulse voltage standard measuring device; tracing the time parameters of the impulse voltage standard measuring device using a voltage square wave source and an impulse voltage standard wave source to determine the calibration time parameters of the impulse voltage standard measuring device; and determining the full-scale traceability of the voltage peak and time parameters of the impulse voltage standard measuring device based on the standard impulse scale factor and the calibration time parameters. Thus, accurate traceability of the impulse voltage peak value of an impulse voltage divider is achieved based on the weighted superposition of multiple frequency scale factors. Based on a broadband capacitive voltage divider, the impulse voltage scale factor of the impulse voltage standard conversion device under high voltage can be obtained, thereby significantly reducing the measurement uncertainty component introduced by linearity, and thus reducing the peak measurement uncertainty of the entire impulse voltage standard measurement system. This solves the problems of theoretical gaps in the current internationally used impulse voltage value traceability method, large measurement uncertainty during the impulse voltage value traceability process, and difficulty in further improving the measurement capabilities of standard measurement devices, laying a theoretical foundation for establishing a national impulse voltage standard measurement system.

Claims

1. A method for realizing full-range traceability of impulse voltage peak and time parameters, comprising: Determining the impulse calibration factor of the broadband voltage auxiliary standard according to the AC calibration factors of the pre-developed broadband voltage auxiliary standard at different frequencies and using the pre-constructed calibration factor weighted superposition model; Calibrating the impulse calibration factor of the impulse voltage standard measuring device to be traced according to the determined impulse calibration factor of the broadband voltage auxiliary standard, and determining the standard impulse calibration factor of the impulse voltage standard measuring device; Carrying out time parameter traceability on the impulse voltage standard measuring device by using a voltage square wave source and an impulse voltage standard wave source, and determining the calibrated time parameters of the impulse voltage standard measuring device; Determining the full-range traceability of the voltage peak and time parameters of the impulse voltage standard measuring device according to the standard impulse calibration factor and the calibrated time parameters.

2. The method according to claim 1, wherein The scale factor weighted superposition model is as follows: where k impulse is the measured impulse calibration factor of the voltage divider when a standard impulse voltage waveform is input to the standard impulse voltage measuring device; k low is the corresponding AC calibration factor of the voltage divider when a low-frequency AC voltage is input, S i is the weight coefficient of the AC voltage waveform corresponding to each frequency band after the input impulse waveform U p1 is Fourier decomposed; k i is the AC calibration factor corresponding to each frequency band after the impulse voltage waveform is Fourier decomposed.

3. The method according to claim 1, wherein, The broadband voltage auxiliary standard includes two broadband capacitive voltage dividers of 300 kV and 800 kV, and Determining the impulse calibration factor of the broadband voltage auxiliary standard according to the AC calibration factors of the pre-developed broadband voltage auxiliary standard at different frequencies and using the pre-constructed calibration factor weighted superposition model, including: Respectively obtaining the AC calibration factors of each broadband capacitive voltage divider at different frequencies; Substituting the AC calibration factors of each broadband capacitive voltage divider at different frequencies into the calibration factor weighted superposition model to determine the impulse calibration factor of each broadband capacitive voltage divider under the determined impulse voltage waveform.

4. The method according to claim 3, wherein Calibrating the impulse calibration factor of the impulse voltage standard measuring device to be traced according to the determined impulse calibration factor of the broadband voltage auxiliary standard, and determining the standard impulse calibration factor of the impulse voltage standard measuring device, including: Adopting a comparison method to calibrate the impulse calibration factor of the impulse voltage standard measuring device by using different broadband capacitive voltage dividers; Obtaining the impulse calibration factor of the digital recorder of the impulse voltage standard measuring device by using a voltage square wave source, an impulse voltage standard wave source, and a standard AC voltage source; Determining the standard impulse calibration factor of the impulse voltage standard measuring device according to the impulse calibration factor of the impulse voltage standard measuring device and the impulse calibration factor of the digital recorder.

5. The method according to claim 1, wherein Carrying out time parameter traceability on the impulse voltage standard measuring device by using a voltage square wave source and an impulse voltage standard wave source, and determining the calibrated time parameters of the impulse voltage standard measuring device, including: Calculating the measurement error of the wavefront time parameter of the impulse voltage waveform of the impulse voltage standard wave source by using the convolution method according to the square wave response of the impulse voltage standard measuring device after traceability; Calibrating the measurement error of the wave tail time parameter of the digital recorder of the impulse voltage standard measuring device by using a 1 kV impulse voltage standard wave source; Calibrating the time parameters of the impulse voltage standard measuring device according to the measurement error of the wavefront time parameter and the measurement error of the wave tail time parameter, and determining the calibrated time parameters.

6. An apparatus for realizing full-range traceability of impulse voltage peak and time parameters, comprising: A first determination module, configured to determine the AC calibration factors of a pre-developed broadband voltage auxiliary standard at different frequencies, and determine the impulse calibration factor of the broadband voltage auxiliary standard according to a pre-constructed calibration factor weighted superposition model; A second determination module, configured to calibrate the impulse calibration factor of an impulse voltage standard measuring device to be traced according to the determined impulse calibration factor of the broadband voltage auxiliary standard, and determine the standard impulse calibration factor of the impulse voltage standard measuring device; A third determination module, configured to perform time parameter traceability on the impulse voltage standard measuring device by using a voltage square wave source and an impulse voltage standard wave source, and determine the calibration time parameters of the impulse voltage standard measuring device; A fourth determination module, configured to determine the full-range traceability of the voltage peak value and time parameters of the impulse voltage standard measuring device according to the standard impulse calibration factor and the calibration time parameters; 7. The apparatus according to claim 6, wherein, The scale factor weighted superposition model is as follows: where k impulse is the measured impulse calibration factor of the voltage divider when a standard impulse voltage waveform is input to the standard impulse voltage measuring device; k low is the corresponding AC calibration factor of the voltage divider when a low-frequency AC voltage is input, S i is the weighting coefficient of the AC voltage waveforms corresponding to each frequency band after the input impulse waveform U p1 is Fourier decomposed; k i is the AC calibration factor corresponding to each frequency band after the impulse voltage waveform is Fourier decomposed.

8. The apparatus according to claim 6, wherein The broadband voltage auxiliary standard includes two broadband capacitive voltage dividers of 300 kV and 800 kV, and The first determination module includes: A first acquisition sub-module, configured to respectively acquire the AC calibration factors of each broadband capacitive voltage divider at different frequencies; A first determination sub-module, configured to substitute the AC calibration factors of each broadband capacitive voltage divider at different frequencies into the calibration factor weighted superposition model to determine the impulse calibration factors of each broadband capacitive voltage divider at different frequencies.

9. The device according to claim 8, wherein The second determination module includes: A calibration sub-module, configured to use a comparison method to calibrate the impulse calibration factor of the impulse voltage standard measuring device by using different broadband capacitive voltage dividers; A second acquisition sub-module, configured to use a voltage square wave source, an impulse voltage standard wave source, and a standard AC voltage source to acquire the impulse calibration factor of the digital recorder of the impulse voltage standard measuring device; A second determination sub-module, configured to determine the standard impulse calibration factor of the impulse voltage standard measuring device according to the impulse calibration factor of the impulse voltage standard measuring device and the impulse calibration factor of the digital recorder.

10. The device according to claim 6, wherein The third determination module includes: A calculation sub-module, configured to calculate the measurement error of the front time parameter of the impulse voltage waveform of the impulse voltage standard measuring device by using a convolution method according to the square wave response of the impulse voltage standard measuring device after traceability; A first calibration sub-module, configured to calibrate the measurement error of the tail time parameter of the digital recorder of the impulse voltage standard measuring device by using a 1 kV impulse voltage standard wave source; A second calibration sub-module, configured to calibrate the time parameters of the impulse voltage standard measuring device according to the measurement error of the front time parameter and the measurement error of the tail time parameter of the tail time parameter of the tail time parameter to determine the calibration time parameters.

11. A computer-readable storage medium, the storage medium stores a computer program, and the computer program is used to execute the method according to any one of claims 1-5 above.

12. An electronic device, the electronic device includes: A processor; A memory for storing instructions executable by the processor; The processor is configured to read the executable instructions from the memory and execute the instructions to implement the method according to any one of claims 1-5 above.

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