Method, device and storage medium for improving dynamic range of ultra-high voltage voltage measurement

Abstract

The present invention discloses a method, device and storage medium for improving the dynamic range of ultra-high voltage voltage measurement, relates to the ultra-high voltage field, and solves the problem that in the current stage, when measuring ultra-high voltage voltage, only a voltage transformer is simply used for measurement, which is easily interfered by the external magnetic field and thus leads to inaccurate measurement results. The method is specifically as follows: a connection analysis module analyzes the connection mode of the ultra-high voltage circuit; a voltage initial detection module performs an initial detection on the ultra-high voltage circuit; a circuit voltage divider module divides the voltage of the ultra-high voltage circuit, obtains a first-level voltage divider circuit or a second-level voltage divider circuit of the ultra-high voltage circuit, and sends it to a calculation module; the calculation module calculates the real-time voltage value of the ultra-high voltage circuit, generates an abnormal signal or obtains the accurate level of the ultra-high voltage circuit and the corresponding real-time voltage value. The present invention can improve the accuracy of ultra-high voltage voltage measurement.

Description

Technical Field

[0001] The present invention belongs to the field of ultra-high voltage voltage measurement and relates to ultra-high voltage measurement technology, in particular to a method, device and storage medium for improving the dynamic range of ultra-high voltage voltage measurement. Background Art

[0002] Ultra-high voltage refers to voltage levels of ±800 kV and above for direct current and 1000 kV and above for alternating current. Ultra-high voltage power systems can achieve long-distance power transmission, effectively solving the problem of long-distance energy supply. Traditional high-voltage power transmission systems are limited by transmission loss and current loss, while ultra-high voltage systems can reduce transmission loss and improve energy transmission efficiency. Therefore, the measurement of ultra-high voltage voltage is indispensable.

[0003] However, at present, when measuring UHV voltage, the UHV circuit is not analyzed through the initial inspection circuit. Instead, the measurement is simply performed using a voltage transformer. However, the voltage transformer senses the voltage through changes in magnetic flux and is easily interfered by external magnetic fields, which leads to inaccurate measurement results.

[0004] To this end, we propose a method, device and storage medium for improving the dynamic range of UHV voltage measurement. Summary of the Invention

[0005] The purpose of the present invention is to solve the above-mentioned problems and to propose a method, device and storage medium for improving the dynamic range of ultra-high voltage voltage measurement, so as to solve the problem raised in the above-mentioned background technology that at the current stage, when measuring ultra-high voltage voltage, only a simple voltage transformer is used for measurement, which is easily interfered by the external magnetic field, thereby causing inaccurate measurement results.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for improving the dynamic range of ultra-high voltage voltage measurement is as follows:

[0008] Step S101: The data acquisition module acquires circuit data of the UHV circuit and sends the circuit data of the UHV circuit to the connection analysis module;

[0009] Step S102: The connection analysis module analyzes the connection mode of the UHV circuit and sends the connection mode of the UHV circuit obtained by the analysis to the voltage initial detection module;

[0010] Step S103: The voltage initial detection module performs an initial detection on the UHV circuit, sends the detected initial detection voltage value of the UHV circuit to the circuit voltage dividing module, and sends the detected accurate voltage threshold of the UHV circuit to the calculation module;

[0011] Step S104: the circuit voltage dividing module divides the voltage of the UHV circuit to obtain a primary voltage dividing circuit or a secondary voltage dividing circuit of the UHV circuit and sends the obtained circuit to the calculation module;

[0012] Step S105: The calculation module calculates the real-time voltage value of the UHV circuit, generates an abnormal signal and sends it to the display terminal, or obtains the accurate level of the UHV circuit and the corresponding real-time voltage value and sends them to the display terminal;

[0013] Step S106: The display terminal displays the abnormal signal or the accurate level of the UHV circuit and the corresponding real-time voltage value.

[0014] Furthermore, the circuit data specifically includes whether a neutral point exists or does not exist in the UHV circuit and whether the neutral point is grounded or not. The neutral point refers to the common point of the star connection in the three-phase power supply system, and neutral point grounding refers to connecting the neutral point to the ground through a grounding resistor.

[0015] Furthermore, in step S102, the analysis process of the connection analysis module is as follows:

[0016] Obtain circuit data of UHV circuits;

[0017] If there is a neutral point in the UHV circuit and the neutral point is grounded, the connection method of the corresponding UHV circuit is deemed to be a direct grounding circuit;

[0018] If there is no neutral point in the UHV circuit or the neutral point is not grounded, the connection method of the corresponding UHV circuit is deemed to be a non-directly grounded circuit.

[0019] Furthermore, in step S103, the initial inspection process of the voltage initial inspection module is specifically as follows:

[0020] Obtain the wiring method of the UHV circuit. If the UHV circuit is directly grounded, connect the neutral point of the UHV circuit to the initial inspection circuit.

[0021] If the wiring method of the UHV circuit is a non-direct grounding circuit, the UHV circuit is connected to the primary inspection circuit; wherein the primary inspection circuit is provided with a primary inspection winding and a primary winding;

[0022] Measure the real-time voltage value at one end of the primary inspection winding in the primary inspection circuit;

[0023] If the real-time voltage value at one end of the primary inspection winding in the primary inspection circuit cannot be measured, adjust the turns ratio between the primary inspection winding on the primary inspection circuit and the primary winding on the UHV circuit until the real-time voltage value at one end of the primary inspection winding in the primary inspection circuit is measured;

[0024] If the real-time voltage value at one end of the primary inspection winding in the primary inspection circuit is measured, the ratio of the number of turns of all coils on the primary winding to the number of turns of all coils on the primary inspection winding is calculated, and the ratio is recorded as the primary inspection turns ratio;

[0025] Calculate the initial inspection voltage value of the UHV circuit by combining the real-time voltage value and the initial inspection turns ratio;

[0026] Then calculate the accurate voltage threshold of the UHV circuit.

[0027] Furthermore, in step S104, the voltage division process of the circuit voltage division module is specifically as follows:

[0028] Obtain the initial inspection voltage value of the UHV circuit;

[0029] Then, a first-level voltage divider resistor is set for the UHV circuit to obtain the resistance value of the first-level voltage divider resistor;

[0030] Calculate the branch voltage value of each first-level voltage divider circuit in the UHV circuit;

[0031] Get the maximum range of the voltmeter in the UHV circuit;

[0032] If the branch voltage values ​​of all the first-level voltage divider circuits meet the first set condition, a first voltage divider signal is generated, the UHV circuit formulates a corresponding first-level voltage divider circuit, and the first-level voltage divider resistor is connected in parallel in the UHV circuit;

[0033] If the branch voltage value of any first-level voltage divider circuit meets the second setting condition, a second voltage divider signal is generated, a second-level voltage divider circuit is formulated for the corresponding first-level voltage divider circuit, and a second-level voltage divider resistor is selected and connected in parallel to the first-level voltage divider circuit corresponding to the first-level voltage divider resistor to form a second-level voltage divider circuit corresponding to the first-level voltage divider circuit. If all second-level voltage divider circuits meet the third setting condition, a corresponding voltage divider circuit is formulated for the ultra-high voltage circuit, and the second-level voltage divider resistor is connected in parallel in the ultra-high voltage circuit.

[0034] Furthermore, in step S105, the calculation process of the calculation module is as follows:

[0035] Obtaining a primary voltage divider circuit or a secondary voltage divider circuit of a UHV circuit;

[0036] If there is no secondary voltage divider circuit in the primary voltage divider circuit of the UHV circuit, measure the real-time voltage value of the primary voltage divider circuit;

[0037] If a secondary voltage divider circuit exists in the primary voltage divider circuit of the UHV circuit, the real-time voltage value in the secondary voltage divider circuit is measured, the real-time voltage values ​​of the secondary voltage divider circuit are added and summed as the real-time voltage value of the corresponding primary voltage divider circuit, and the real-time voltage values ​​of the primary voltage divider circuit are added and summed to obtain the real-time voltage value of the UHV circuit;

[0038] Obtain the voltage accuracy threshold of the UHV circuit, compare the real-time voltage value with the voltage accuracy threshold, and determine the accuracy level of the UHV circuit as level one, level two, or generate an abnormal signal.

[0039] Furthermore, the accuracy of the real-time voltage value of the UHV circuit corresponding to the first-level accuracy level is higher than the real-time voltage value of the UHV circuit corresponding to the second-level accuracy level.

[0040] Furthermore, in step S106, the working process of the display terminal is as follows:

[0041] If an abnormal signal is received, the user is prompted that the real-time voltage value of the UHV circuit is abnormal;

[0042] If a real-time voltage value of a UHV circuit corresponding to the first-level accuracy level or the second-level accuracy level is received, the corresponding voltage value will be notified to the user.

[0043] A computer device, comprising:

[0044] a memory storing a computer program;

[0045] A processor is communicatively connected to the memory, and when the computer program is executed by the processor, a method for improving the dynamic range of ultra-high voltage voltage measurement is implemented.

[0046] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements a method for improving the dynamic range of ultra-high voltage voltage measurement.

[0047] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0048] The present invention first collects circuit data of the ultra-high voltage circuit, and sends the circuit data of the ultra-high voltage circuit to a connection analysis module, uses the connection analysis module to analyze the connection mode of the ultra-high voltage circuit, and sends the analyzed connection mode of the ultra-high voltage circuit to a voltage preliminary inspection module, the voltage preliminary inspection module performs an initial inspection on the ultra-high voltage circuit, and detects the initial inspection voltage value and voltage accuracy threshold of the ultra-high voltage circuit. At the same time, the circuit voltage divider module is used to divide the voltage of the ultra-high voltage circuit, and the first-level voltage divider circuit or the second-level voltage divider circuit of the ultra-high voltage circuit is obtained and sent to the calculation module, and finally the real-time voltage value of the ultra-high voltage circuit is calculated by the calculation module to generate an abnormal signal or obtain the accurate level of the ultra-high voltage circuit and the corresponding real-time voltage value. The present invention can improve the accuracy of ultra-high voltage voltage measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0050] Figure 1 Flow chart of the method of the present invention.

[0051] Figure 2 This is a system block diagram of the present invention.

[0052] Figure 3 Schematic diagram of the initial inspection circuit for the direct grounding circuit of the present invention.

[0053] Figure 4 Schematic diagram of the initial inspection circuit for the non-directly grounded circuit in the present invention.

[0054] Figure 5 Schematic diagram of the voltage divider circuit in the present invention.

[0055] Figure 6 Schematic diagram of the confidence level of the ultra-high voltage circuit accuracy in the present invention.

[0056] Figure 7 Schematic diagram of the physical structure of computer equipment DETAILED DESCRIPTION

[0057] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0058] See also Figures 1-6 As shown, the technical solution provided by the present invention is: a method for improving the dynamic range of ultra-high voltage voltage measurement, comprising the following steps:

[0059] Step S101: The data acquisition module acquires circuit data of the UHV circuit and sends the circuit data of the UHV circuit to the connection analysis module;

[0060] Step S102: The connection analysis module analyzes the connection mode of the UHV circuit and sends the connection mode of the UHV circuit obtained by the analysis to the voltage initial detection module;

[0061] Step S103: The voltage initial detection module performs an initial detection on the UHV circuit, sends the detected initial detection voltage value of the UHV circuit to the circuit voltage dividing module, and sends the detected accurate voltage threshold of the UHV circuit to the calculation module;

[0062] Step S104: the circuit voltage dividing module divides the voltage of the UHV circuit to obtain a primary voltage dividing circuit or a secondary voltage dividing circuit of the UHV circuit and sends the obtained circuit to the calculation module;

[0063] Step S105: The calculation module calculates the real-time voltage value of the UHV circuit, generates an abnormal signal and sends it to the display terminal, or obtains the accurate level of the UHV circuit and the corresponding real-time voltage value and sends them to the display terminal;

[0064] Step S106: The display terminal displays the abnormal signal or the accurate level of the UHV circuit and the corresponding real-time voltage value;

[0065] The above method involves a data acquisition module, a voltage initial detection module, a circuit voltage division module, a database, a calculation module and a display terminal;

[0066] It should be noted in advance that since most common ultra-high voltage circuits in life are three-phase power supplies, the ultra-high voltage circuit preferred by the present invention is also a three-phase power supply; when detecting the voltage in the ultra-high voltage circuit, the present invention uses a certain number of primary voltage-dividing resistors to formulate a voltage-dividing circuit corresponding to the ultra-high voltage circuit, and then uses a voltmeter to measure the branch voltage value of the voltage-dividing circuit. Therefore, the range of the voltmeter and the resistance value of the voltage-dividing resistor are stored in the database in advance, and the database sends the range of the voltmeter and the resistance value of the voltage-dividing resistor to the circuit voltage-dividing module;

[0067] The data acquisition module is used to collect circuit data of the ultra-high voltage circuit and send the circuit data of the ultra-high voltage circuit to the connection analysis module. The circuit data specifically includes whether a neutral point exists in the ultra-high voltage circuit and whether the neutral point is grounded or not. The neutral point refers to the common point of the star connection in the three-phase power supply system, and neutral point grounding refers to connecting the neutral point to the ground through a grounding resistor;

[0068] The connection analysis module is used to analyze the connection mode of the UHV circuit. The analysis process is as follows:

[0069] Obtain circuit data of UHV circuits;

[0070] If there is a neutral point in the UHV circuit and the neutral point is grounded, the connection method of the corresponding UHV circuit is deemed to be a direct grounding circuit;

[0071] If there is no neutral point in the UHV circuit or the neutral point is not grounded, the connection method of the corresponding UHV circuit is deemed to be a non-directly grounded circuit;

[0072] The connection analysis module sends the connection mode of the UHV circuit to the voltage initial detection module, which is used to perform an initial detection on the UHV circuit. The initial detection process is as follows:

[0073] Obtain the wiring method of the UHV circuit. If the UHV circuit is a direct ground circuit, connect the neutral point of the UHV circuit to Figure 3 The initial inspection circuit shown;

[0074] If the wiring method in the UHV circuit is a non-direct grounding circuit, connect the UHV circuit to Figure 4 The initial detection circuit shown in FIG. 1 is provided with an initial detection winding and a primary winding. Figure 3 and Figure 4 L1, L2 and L3 shown represent three-phase power supply;

[0075] Measurement Figure 3 or Figure 4 The real-time voltage value at one end of the primary inspection winding in the preliminary inspection circuit shown is shown. If the real-time voltage value at one end of the primary inspection winding in the preliminary inspection circuit cannot be measured, the turns ratio between the primary inspection winding on the preliminary inspection circuit and the primary winding on the UHV circuit is adjusted until the real-time voltage value at one end of the primary inspection winding in the preliminary inspection circuit can be measured. Specifically, the total number of turns of the coil at one end of the primary winding is increased and the total number of turns of the coil at one end of the preliminary inspection winding is reduced. The total number of turns of the coil refers to the sum of the turns of the coil at one end of the primary winding or the primary winding;

[0076] It should be noted that when the real-time voltage value at one end of the primary inspection winding in the primary inspection circuit is successfully measured, the primary winding is connected in parallel with the UHV circuit, and the voltage in the primary winding depends on the voltage in the UHV circuit. The relationship between the primary inspection winding and the primary winding is a non-electrical magnetic coupling. In this case, although the voltage value of the primary winding is very high, the real-time voltage value of the primary inspection winding is also a value that can be measured by a common voltmeter.

[0077] If the real-time voltage value DYZ at one end of the primary inspection winding in the primary inspection circuit is successfully measured, the real-time voltage value in the primary inspection circuit is obtained, and the ratio of the number of turns of all coils on the primary winding to the number of turns of all coils on the primary inspection winding is calculated. The ratio is recorded as the initial inspection turns ratio ZSB;

[0078] By the formula CDY=10 lg(DYZ×ZSB) Calculate the initial inspection voltage value CDY of the UHV circuit;

[0079] Then, the accurate voltage threshold of the UHV circuit is calculated. Since this embodiment uses lg to calculate the initial detection voltage value of the UHV circuit, only the error within 10 times is considered. Therefore, the accurate voltage thresholds in this embodiment are DYZyx=0.1×CDY and DYZyd=10×CDY.

[0080] The voltage initial detection module sends the initial detection voltage value of the UHV circuit to the circuit voltage division module, and sends the accurate voltage threshold of the UHV circuit to the calculation module;

[0081] See also Figure 5 As shown, the circuit voltage divider module is used to divide the voltage of the UHV circuit. The voltage division process is as follows:

[0082] Obtain the initial inspection voltage value of the UHV circuit;

[0083] Then, a certain number of first-level voltage divider resistors are set for the UHV circuit, and the resistance value Rfn of the first-level voltage divider resistor is obtained, where n is the number of the first-level voltage divider resistor, n=1, 2, 3, ..., z, z is a positive integer, and each first-level voltage divider resistor corresponds to a first-level voltage divider circuit;

[0084] The branch voltage value FDYn of each primary voltage divider circuit in the UHV circuit is calculated using the following formula:

[0085]

[0086] Get the maximum range Umax of the voltmeter in the UHV circuit;

[0087] If the branch voltage values ​​of all the first-level voltage divider circuits meet the first set condition, which is 10×FDYn≤Umax, a first voltage divider signal is generated. In this case, a corresponding first-level voltage divider circuit is formulated for the UHV circuit, and the first-level voltage divider resistor is connected in parallel in the UHV circuit.

[0088] If the branch voltage value of any one-level voltage divider circuit meets the second setting condition, which is 10×FDYn>Umax, a second voltage divider signal is generated, and a second voltage divider circuit is formulated for the corresponding first-level voltage divider circuit. Several second-level voltage divider resistors are selected and connected in parallel to the first-level voltage divider circuit corresponding to the first-level voltage divider resistor to form a second-level voltage divider circuit corresponding to the first-level voltage divider circuit, so that all the second-level voltage divider circuits meet the third setting condition. The third setting condition is At this time, a corresponding voltage divider circuit is formulated for the UHV circuit, and a two-stage voltage divider resistor is connected in parallel in the UHV circuit; where Rfnm is the resistance value of the two-stage voltage divider resistor, m is the index of the two-stage voltage divider resistor, and m = 1, 2, 3, ..., x, where x is a positive integer;

[0089] The circuit voltage dividing module sends the primary voltage dividing circuit or the secondary voltage dividing circuit of the ultra-high voltage circuit to the calculation module;

[0090] The calculation module is used to calculate the real-time voltage value of the UHV circuit. The calculation process is as follows:

[0091] Obtaining a primary voltage divider circuit or a secondary voltage divider circuit of a UHV circuit;

[0092] If there is no secondary voltage divider circuit in the primary voltage divider circuit of the UHV circuit, only the real-time voltage value SDYfn of the primary voltage divider circuit is measured. In this case, the real-time voltage value SDYfnm in the secondary voltage divider circuit is 0.

[0093] If there is a secondary voltage divider circuit in the primary voltage divider circuit of the UHV circuit, proceed to the next step;

[0094] Measure the real-time voltage value SDYfnm in the secondary voltage divider circuit; because of the secondary voltage divider circuit, it is only necessary to measure the real-time voltage value of the secondary voltage divider circuit, and there is no need to measure the real-time voltage value of the primary voltage divider circuit corresponding to the secondary voltage divider circuit. The real-time voltage values ​​of the secondary voltage divider circuit are added and summed as the real-time voltage value of the corresponding primary voltage divider circuit; the real-time voltage value SDYz of the UHV circuit is obtained by adding and summing the real-time voltage values ​​of the primary voltage divider circuit;

[0095] Obtain the accurate voltage threshold of the UHV circuit and compare the real-time voltage value with the accurate voltage threshold;

[0096] If SDYz<DYZyx, the accuracy level of the UHV circuit is considered to be level 2.

[0097] If DYZyx≤SDYz≤DYZyd, the accuracy level of the UHV circuit is considered to be the first level accuracy level;

[0098] If DYZyd<SDYz, the accuracy level of the UHV circuit is considered to be level 2.

[0099] Furthermore, if SDYz≤0.1×DYZyx or SDYz≥10×DYZyd, the accuracy level of the UHV circuit is determined to be level 3 and an abnormal signal is generated;

[0100] See also Figure 6 As shown, the accuracy of the real-time voltage value of the UHV circuit corresponding to the first-level accuracy level is higher than that of the real-time voltage value of the UHV circuit corresponding to the second-level accuracy level, and the accuracy of the real-time voltage value of the UHV circuit corresponding to the second-level accuracy level is higher than that of the real-time voltage value of the UHV circuit corresponding to the third-level accuracy level. For example, the confidence level of the real-time voltage value of the UHV circuit corresponding to the first-level accuracy level is 64.2%, the confidence level of the real-time voltage value of the UHV circuit corresponding to the second-level accuracy level is 27.2%, and the confidence level of the real-time voltage value of the UHV circuit corresponding to the third-level accuracy level is 4.4%;

[0101] The calculation module sends the abnormal signal or the accurate level of the ultra-high voltage circuit and the corresponding real-time voltage value to the display terminal;

[0102] The display terminal is used to display abnormal signals or the accuracy level of the ultra-high voltage circuit and the corresponding real-time voltage value. If an abnormal signal is received, the user is prompted that the real-time voltage value of the ultra-high voltage circuit is abnormal. If the real-time voltage value of the ultra-high voltage circuit corresponding to the first-level accuracy level or the second-level accuracy level is received, the corresponding voltage value is notified to the user;

[0103] In this application, if a corresponding calculation formula appears, the above calculation formula is dimensionless and its numerical calculation is performed. The weight coefficient, proportional coefficient and other coefficients in the formula are set to a result value obtained by quantifying each parameter. Regarding the size of the weight coefficient and the proportional coefficient, as long as it does not affect the proportional relationship between the parameter and the result value, it is acceptable.

[0104] Figure 7 The following is an example of a physical structure diagram of a computer device, such as Figure 7 As shown, the computer device may include: a processor, a communications interface, memory, and a communications bus, wherein the processor, communications interface, and memory communicate with each other via the communications bus. The processor may invoke logic instructions in the memory to execute a method, device, and storage medium for improving the dynamic range of ultra-high voltage voltage measurement, the method comprising: ... (write the steps of your method).

[0105] In addition, the logical instructions in the above-mentioned memory can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0106] On the other hand, the present application also provides a computer program product, the computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions, and when the program instructions are executed by a computer, the computer can execute the method, device, and storage medium for improving the dynamic range of ultra-high voltage voltage measurement provided by the above methods, the method including: a data acquisition module collecting circuit data of the ultra-high voltage circuit and sending the circuit data of the ultra-high voltage circuit to a connection analysis module; the connection analysis module analyzing the connection mode of the ultra-high voltage circuit and sending the analyzed connection mode of the ultra-high voltage circuit to a voltage initial inspection module; The voltage initial inspection module performs an initial inspection on the UHV circuit, sends the initial inspection voltage value of the UHV circuit obtained by the inspection to the circuit voltage divider module, and sends the accurate voltage threshold of the UHV circuit obtained by the inspection to the calculation module; the circuit voltage divider module divides the voltage of the UHV circuit, obtains the first-level voltage divider circuit or the second-level voltage divider circuit of the UHV circuit and sends it to the calculation module; the calculation module calculates the real-time voltage value of the UHV circuit, generates an abnormal signal and sends it to the display terminal, or obtains the accurate level of the UHV circuit and the corresponding real-time voltage value and sends them to the display terminal; the display terminal displays the abnormal signal or the accurate level of the UHV circuit and the corresponding real-time voltage value.

[0107] On the other hand, the present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the above-mentioned methods, devices and storage media for improving the dynamic range of ultra-high voltage voltage measurement, the method comprising: a data acquisition module acquires circuit data of the ultra-high voltage circuit and sends the circuit data of the ultra-high voltage circuit to a connection analysis module; the connection analysis module analyzes the connection mode of the ultra-high voltage circuit and sends the analyzed connection mode of the ultra-high voltage circuit to a voltage preliminary inspection module; the voltage preliminary inspection module performs an initial inspection on the ultra-high voltage circuit, sends the initial inspection voltage value of the ultra-high voltage circuit obtained by the inspection to a circuit voltage divider module and sends the voltage accurate threshold of the ultra-high voltage circuit obtained by the inspection to a calculation module; the circuit voltage divider module divides the voltage of the ultra-high voltage circuit, obtains a first-level voltage divider circuit or a second-level voltage divider circuit of the ultra-high voltage circuit and sends it to the calculation module; the calculation module calculates the real-time voltage value of the ultra-high voltage circuit, generates an abnormal signal and sends it to a display terminal or obtains the accurate level of the ultra-high voltage circuit and the corresponding real-time voltage value and sends them to the display terminal; the display terminal displays the abnormal signal or the accurate level of the ultra-high voltage circuit and the corresponding real-time voltage value.

[0108] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0109] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for improving the dynamic range of ultra-high voltage voltage measurement, characterized in that: The specific method is as follows: Step S101: The data acquisition module acquires circuit data of the UHV circuit and sends the circuit data of the UHV circuit to the connection analysis module; Step S102: The connection analysis module analyzes the connection mode of the UHV circuit and sends the connection mode of the UHV circuit obtained by the analysis to the voltage initial detection module; Step S103: The voltage initial detection module performs an initial detection on the UHV circuit, sends the detected initial detection voltage value of the UHV circuit to the circuit voltage dividing module, and sends the detected accurate voltage threshold of the UHV circuit to the calculation module; Step S104: the circuit voltage dividing module divides the voltage of the UHV circuit, obtains the real-time voltage value of the first-level voltage dividing circuit or the real-time voltage value of the second-level voltage dividing circuit of the UHV circuit, and sends it to the calculation module; The voltage division process of the circuit voltage division module is as follows: Obtain the initial inspection voltage value of the UHV circuit; Then, a first-level voltage divider resistor is set for the UHV circuit, and a resistance value Rfn of the first-level voltage divider resistor is obtained, where n is the number of the first-level voltage divider resistor, n=1, 2, 3, ..., z, and z is a positive integer; Calculate the branch voltage value FDYn of each first-level voltage divider circuit in the UHV circuit; Get the maximum range Umax of the voltmeter in the UHV circuit; If the branch voltage values ​​of all the first-level voltage divider circuits meet the first set condition, which is 10×FDYn≤Umax, a first voltage divider signal is generated, the UHV circuit formulates a corresponding first-level voltage divider circuit, and the first-level voltage divider resistor is connected in parallel in the UHV circuit; If the branch voltage value of any one-level voltage divider circuit meets the second setting condition, which is 10×FDYn>Umax, a second voltage divider signal is generated, and a secondary voltage divider circuit is formulated for the corresponding first-level voltage divider circuit. A secondary voltage divider resistor is selected and connected in parallel to the first-level voltage divider circuit corresponding to the first-level voltage divider resistor to form a secondary voltage divider circuit corresponding to the first-level voltage divider circuit. If all the secondary voltage divider circuits meet the third setting condition, the third setting condition is , then formulate a corresponding voltage divider circuit for the UHV circuit, and connect the two-stage voltage divider resistor in parallel in the UHV circuit; where Rfnm is the resistance value of the two-stage voltage divider resistor, m is the index of the two-stage voltage divider resistor, m=1, 2, 3, ..., x, x is a positive integer; Step S105: The calculation module calculates the real-time voltage value of the UHV circuit, generates an abnormal signal and sends it to the display terminal, or obtains the accurate level of the UHV circuit and the corresponding real-time voltage value and sends them to the display terminal; The calculation process of the calculation module is as follows: Obtaining a primary voltage divider circuit or a secondary voltage divider circuit of a UHV circuit; If there is no secondary voltage divider circuit in the primary voltage divider circuit of the UHV circuit, measure the real-time voltage value of the primary voltage divider circuit; If a secondary voltage divider circuit exists in the primary voltage divider circuit of the UHV circuit, the real-time voltage value in the secondary voltage divider circuit is measured, the real-time voltage values ​​of the secondary voltage divider circuit are added and summed as the real-time voltage value of the corresponding primary voltage divider circuit, and the real-time voltage values ​​of the primary voltage divider circuit are added and summed to obtain the real-time voltage value of the UHV circuit; Step S106: The display terminal displays the abnormal signal or the accurate level of the UHV circuit and the corresponding real-time voltage value.

2. The method for improving the dynamic range of ultra-high voltage voltage measurement according to claim 1, characterized in that: The circuit data specifically includes whether a neutral point exists or not in the UHV circuit and whether the neutral point is grounded or not. The neutral point refers to the common point of the star connection in the three-phase power supply system, and neutral point grounding means connecting the neutral point to the ground through a grounding resistor.

3. The method for improving the dynamic range of ultra-high voltage voltage measurement according to claim 2, characterized in that: In step S102, the analysis process of the connection analysis module is as follows: Obtain circuit data of UHV circuits; If there is a neutral point in the UHV circuit and the neutral point is grounded, the connection method of the corresponding UHV circuit is deemed to be a direct grounding circuit; If there is no neutral point in the UHV circuit or the neutral point is not grounded, the connection method of the corresponding UHV circuit is deemed to be a non-directly grounded circuit.

4. The method for improving the dynamic range of ultra-high voltage voltage measurement according to claim 1, characterized in that: In step S103, the voltage initial detection module performs the initial detection process as follows: Obtain the wiring method of the UHV circuit. If the UHV circuit is directly grounded, connect the neutral point of the UHV circuit to the initial inspection circuit. If the wiring method of the UHV circuit is a non-direct grounding circuit, the UHV circuit is connected to the primary inspection circuit; wherein the primary inspection circuit is provided with a primary inspection winding and a primary winding; Measure the real-time voltage value at one end of the primary inspection winding in the primary inspection circuit; If the real-time voltage value at one end of the primary inspection winding in the primary inspection circuit cannot be measured, adjust the turns ratio between the primary inspection winding on the primary inspection circuit and the primary winding on the UHV circuit until the real-time voltage value at one end of the primary inspection winding in the primary inspection circuit is measured; If the real-time voltage value at one end of the primary inspection winding in the primary inspection circuit is measured, the ratio of the number of turns of all coils on the primary winding to the number of turns of all coils on the primary inspection winding is calculated, and the ratio is recorded as the primary inspection turns ratio; Calculate the initial inspection voltage value of the UHV circuit by combining the real-time voltage value and the initial inspection turns ratio; Then calculate the accurate voltage threshold of the UHV circuit.

5. The method for improving the dynamic range of ultra-high voltage voltage measurement according to claim 1, characterized in that: In step S105, the calculation process of the calculation module further includes: Obtain the voltage accuracy threshold of the UHV circuit, compare the real-time voltage value with the voltage accuracy threshold, and determine the accuracy level of the UHV circuit as level one, level two, or generate an abnormal signal.

6. The method for improving the dynamic range of ultra-high voltage voltage measurement according to claim 1, characterized in that: The accuracy of the real-time voltage value of the UHV circuit corresponding to the first-level accuracy level is higher than the real-time voltage value of the UHV circuit corresponding to the second-level accuracy level.

7. The method for improving the dynamic range of ultra-high voltage voltage measurement according to claim 1, characterized in that: The working process of the display terminal in step S106 is as follows: If an abnormal signal is received, the user is prompted that the real-time voltage value of the UHV circuit is abnormal; If a real-time voltage value of a UHV circuit corresponding to the first-level accuracy level or the second-level accuracy level is received, the corresponding voltage value will be notified to the user.

8. A computer device, characterized in that: The computer device comprises: a memory storing a computer program; A processor is communicatively connected to the memory, and when the computer program is executed by the processor, the method for improving the dynamic range of ultra-high voltage voltage measurement described in any one of claims 1 to 7 is implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method for improving the dynamic range of ultra-high voltage voltage measurement according to any one of claims 1 to 7 is implemented.

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