Environment-friendly gas circuit breaker nozzle material evaluation method based on combined empowerment multi-parameter dynamic decision factor

Abstract

The embodiment of the invention discloses an environment-friendly gas circuit breaker nozzle material evaluation method based on a combined empowerment multi-parameter dynamic decision factor. The method specifically comprises the following steps: outputting a current signal; performing an arcing test on the nozzle material through the current signal to form an electric arc; sensing electric signals of the nozzle material are received and processed, current data, voltage data and air pressure data are obtained, and the sensing electric signals comprise current sensing electric signals and air pressure sensing electric signals; detecting temperature data of a nozzle material; and evaluating the nozzle material of the environment-friendly gas circuit breaker according to the current data, the voltage data, the air pressure data and the temperature data of the nozzle material in the arc forming process under the action of different output currents. The dynamic change of the nozzle material and the surrounding environment thereof in the arcing process is directly reflected through the temperature data, the current data, the voltage data and the air pressure data, and the performance of the nozzle material can be evaluated more comprehensively and accurately.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage circuit breaker nozzle material selection and evaluation, and in particular to an environmental protection gas circuit breaker nozzle material evaluation method based on combined weighted multi-parameter dynamic decision factors. Background Art

[0002] High-voltage circuit breakers are important devices used to control and protect power equipment in power systems. Their performance directly affects the safety and reliability of power systems, and nozzle materials are one of the key components of high-voltage circuit breakers. Nozzle materials play the role of arc extinguishing in high-voltage circuit breakers. When high-voltage circuit breakers cut off the circuit, arcs will be generated. The high temperature and high energy of the arc will cause serious damage to the nozzle materials. Therefore, the nozzle materials need to have good high temperature resistance, radiation resistance and high strength to ensure the stable operation of high-voltage circuit breakers. At present, environmentally friendly gas arc extinguishing high-voltage circuit breakers are a hot spot for research and development. Compared with SF6 gas, mixed gases such as C4F7N have more complicated effects on the ablation of the nozzle when used for arc extinguishing.

[0003] In the prior art, expensive equipment and long experimental cycles are required to evaluate the status of nozzle materials, which increases the testing cost. At the same time, frequent replacement of test materials will also increase the economic burden. In addition, the test environment often cannot fully simulate the actual working environment, so the test results may be biased. For example, the performance under high temperature and high pressure may be significantly different from that under normal temperature and pressure. In particular, for the impact evaluation of various new types of environmentally friendly gas arc extinguishing, there is an urgent need to propose a better evaluation method. Summary of the invention

[0004] Based on this, it is necessary to propose an environmental protection gas circuit breaker nozzle material evaluation method based on combined weighted multi-parameter dynamic decision factors to address the above problems.

[0005] A method for evaluating nozzle materials of environmentally friendly gas circuit breaker based on combined weighted multi-parameter dynamic decision factors, the method specifically comprising:

[0006] Output current signal.

[0007] An arc burning test is performed on the nozzle material through the current signal to form an arc.

[0008] The sensing electrical signal of the nozzle material is received and processed to obtain current data, voltage data and air pressure data, wherein the sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal.

[0009] The temperature data of the nozzle material is detected.

[0010] Under the effect of different output currents, the nozzle material of the environmentally friendly gas circuit breaker is evaluated through the current data, voltage data, gas pressure data and temperature data of the nozzle material during the arc formation process.

[0011] The step of evaluating the nozzle material of the environmentally friendly gas circuit breaker according to the current data, voltage data, gas pressure data and temperature data of the nozzle material during the arc formation process specifically includes:

[0012] The voltage standard parameter, the current standard parameter, the air pressure standard parameter and the temperature standard parameter are determined according to the current data, the voltage data, the air pressure data and the temperature data of the nozzle material under the action of different output currents.

[0013] The voltage variation parameter, the current variation parameter, the air pressure variation parameter and the temperature variation parameter are determined according to the voltage standard parameter, the current standard parameter, the air pressure standard parameter and the temperature standard parameter.

[0014] The multi-parameter dynamic decision factor is determined according to the voltage variation parameter, the current variation parameter, the air pressure variation parameter and the temperature variation parameter.

[0015] The voltage weight, current weight, air pressure weight and temperature weight are determined according to the voltage standard parameter, current standard parameter, air pressure standard parameter, temperature standard parameter, voltage variation parameter, current variation parameter, air pressure variation parameter and temperature variation parameter.

[0016] A combined weighted multi-parameter dynamic decision factor is determined according to the voltage weight, current weight, air pressure weight and temperature weight.

[0017] The nozzle material is evaluated based on the comparison between the combined weighted multi-parameter dynamic decision factor and the qualified threshold, good threshold and excellent threshold, and the performance of the nozzle material is divided into four levels: unqualified, qualified, good and excellent.

[0018] Among them, the nozzle material is evaluated according to the comparison between the combined weighted multi-parameter dynamic decision factor and the qualified threshold, the good threshold and the excellent threshold, and the performance of the nozzle material is divided into four levels: unqualified, qualified, good and excellent, specifically including:

[0019] If it is determined that the combined weighted multi-parameter dynamic decision factor is less than or equal to the qualified threshold, the performance level of the nozzle material is classified as unqualified.

[0020] If it is determined that the combined weighted multi-parameter dynamic decision factor is greater than the qualified threshold and less than or equal to the good threshold, the performance level of the nozzle material is classified as qualified.

[0021] If it is determined that the combined weighted multi-parameter dynamic decision factor is greater than the good threshold and less than or equal to the excellent threshold, the performance level of the nozzle material is classified as good.

[0022] If it is determined that the combined weighted multi-parameter dynamic decision factor is greater than the excellent threshold, the performance level of the nozzle material is classified as excellent.

[0023] The step of determining the combined weighted multi-parameter dynamic decision factor according to the voltage weight, current weight, air pressure weight and temperature weight specifically includes:

[0024] according to Determine the combined weighted multi-parameter dynamic decision factor, where f 1 is the voltage weight, f 2 is the current weight, f 3 is the air pressure weight, f 4 is the temperature weight.

[0025] An arc burning test device, the arc burning test device is used to obtain the current data, voltage data, air pressure data and temperature data of the nozzle material in the arc forming process as claimed in claim 1, the arc burning test device specifically comprises: a power supply component, a signal processing component, an infrared component and a test component,

[0026] The power supply component is electrically connected to the test component and is used to output a current signal.

[0027] The test component, the power supply component is electrically connected to the test component, and the test component is used to perform an arc burning test on the nozzle material through the current signal to form an arc.

[0028] The signal processing component is connected to the test component and is used to receive and process the sensing electrical signal of the nozzle material to obtain current data, voltage data and air pressure data. The sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal.

[0029] The infrared component is connected to the nozzle material via wireless communication and is used to detect temperature data of the nozzle material.

[0030] The test assembly comprises a first electrode, a second electrode and an arc-striking wire.

[0031] The first electrode and the second electrode are connected via the arc-striking wire, and the first electrode and the second electrode are used to receive the current signal and provide the current signal to the arc-striking wire;

[0032] The nozzle material is sleeved on the connecting section of the arc-striking wire, one end of the nozzle material is sleeved on the end of the first electrode, and the other end is sleeved on the end of the second electrode to form a cavity, and the cavity is used to accommodate the arc-striking wire, and the arc-striking wire is used to perform an arc burning test on the nozzle material through the current signal to form an arc.

[0033] Wherein, the test assembly further comprises a first fixing fixture, a first insulating seat, a second fastening fixture and a second insulating seat;

[0034] The first electrode is fastened to the first insulating seat via the first fixing fixture, the first fixing fixture is used to fix the first electrode, and the first insulating seat is used to support the fixed first electrode;

[0035] The second electrode is fastened to the second insulating seat via the second fixing fixture, the second fixing fixture is used to fix the second electrode, and the second insulating seat is used to support the fixed second electrode.

[0036] Wherein, the signal processing component includes the current mutual inductance coil, the air pressure sensor and the integrated processor,

[0037] The first electrode is electrically connected to the positive electrode of the power supply assembly; the second electrode is electrically connected to the negative electrode of the power supply assembly, and a current mutual inductance coil is provided on the connecting line, and the current mutual inductance coil is used to detect the current sensing electrical signal of the nozzle material;

[0038] The nozzle material of the side wall of the cavity is provided with a through hole, the through hole is used to accommodate the air pressure sensor, and the air pressure sensor is used to detect the air pressure sensing electrical signal of the nozzle material;

[0039] The integrated processor is electrically connected to the test assembly and is used to receive and process the sensing electrical signal of the nozzle material to obtain current data, voltage data and air pressure data. The sensing electrical signal includes the current sensing electrical signal and the air pressure sensing electrical signal.

[0040] The integrated processor includes a voltage signal port, a current signal port and an air pressure signal port.

[0041] The current mutual inductance coil is electrically connected to the current signal port, and the current signal port is used to receive the current sensing electrical signal and obtain the current data through the current sensing electrical signal;

[0042] The first fixing fixture is electrically connected to the positive electrode of the voltage signal port, and the second fixing fixture is electrically connected to the negative electrode of the voltage signal port, and the voltage signal port is used to detect and process the voltage sensing electrical signal of the nozzle material to obtain voltage data;

[0043] The air pressure signal port is electrically connected to the air pressure sensor, and the air pressure sensor is used to receive and transmit air pressure data inside the cavity.

[0044] The infrared component receives the infrared signal of the cavity side wall formed by the nozzle material, and obtains the temperature data of the nozzle material through the infrared signal.

[0045] A nozzle material evaluation system, the system specifically comprising:

[0046] The arc burning test module is used to output a current signal; receive and process a sensing electrical signal of a nozzle material to obtain current data, voltage data and air pressure data, wherein the sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal; detect the temperature data of the nozzle material; and perform an arc burning test on the nozzle material to form an arc through the current signal.

[0047] The environmentally friendly gas circuit breaker nozzle material evaluation module is used to evaluate the nozzle material of the environmentally friendly gas circuit breaker through the current data, voltage data, air pressure data and temperature data of the nozzle material during the arc formation process under the action of different output currents.

[0048] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor executes the steps of the method described above.

[0049] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the above method.

[0050] The embodiments of the present invention have the following beneficial effects:

[0051] The present invention conducts an arc burning test on the nozzle material of the environmentally friendly gas circuit breaker to form an arc. The temperature data, current data, voltage data and air pressure data of the nozzle material during the arc formation process directly reflect the dynamic changes of the nozzle material and its surrounding environment during the arc burning process. By comprehensively considering the weights and dynamic changes of multiple parameters such as air pressure, current, voltage and temperature, the performance of the nozzle material can be evaluated more comprehensively and accurately. The experimental device of this method is simpler, the test process is clearer, the parameters considered are more comprehensive, and the data processing method is more scientific. It can more effectively reflect the performance of the material in practical applications, thereby providing a more scientific basis for the selection and optimization of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] in:

[0054] Figure 1 A flow chart of an embodiment of a method for evaluating nozzle materials of an environmentally friendly gas circuit breaker based on a combined weighted multi-parameter dynamic decision factor provided by the present invention;

[0055] Figure 2 A schematic structural diagram of an arc burning test device according to an embodiment of the present invention;

[0056] Figure 3 A schematic flow chart of another embodiment of a nozzle material evaluation method provided by the present invention;

[0057] Figure 4 A structural schematic diagram of another embodiment of an arc burning test device provided by the present invention;

[0058] Figure 5 A diagram illustrating key dimensions of the arc test device provided by the present invention;

[0059] Figure 6 A schematic structural diagram of an embodiment of an environmentally friendly gas circuit breaker nozzle material evaluation system based on a combined weighted multi-parameter dynamic decision factor provided by the present invention;

[0060] Figure 7 A schematic structural diagram of an embodiment of the device provided by the present invention;

[0061] Figure 8 A schematic structural diagram of an embodiment of a storage medium provided by the present invention.

[0062] 1. Arc burning experimental device; 10. Power supply component; 20. Signal processing component; 30. Test component; 40. Infrared component; 50. Nozzle material; 21. Current mutual inductance coil; 22. Air pressure sensor; 23. Integrated processor; 231. Positive terminal of voltage signal; 232. Negative terminal of voltage signal; 233. Current signal port; 234. Air pressure signal port; 31. First electrode; 32. First fixing fixture; 33. First insulating seat; 34. Second electrode; 35. Second fixing fixture; 36. Second insulating seat; 37. Arc striking wire; 51. Through hole; 61. First cable; 62. Second cable; 63. Positive cable of voltage probe; 64. Negative cable of voltage probe; 65. Communication cable of current coil; 66. Communication cable of air pressure sensor. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] like Figure 1 As shown, Figure 1 A flow chart of an embodiment of a method for evaluating nozzle materials of an environmentally friendly gas circuit breaker based on a combined weighted multi-parameter dynamic decision factor provided by the present invention. A nozzle material evaluation method, using the above-mentioned arc burning test device for evaluation, specifically includes:

[0065] S101: Output current signal.

[0066] For example, referring to Figure 2 , Figure 2 The present invention provides a schematic structural diagram of an arc burning test device according to an embodiment of the present invention. The arc burning test device is used to perform an arc burning test on the nozzle material of an environmentally friendly gas circuit breaker, and obtain the current data, voltage data, air pressure data and temperature data of the nozzle material during the arc formation process. Specifically, the power supply component 10 is electrically connected to the test component 30 through a cable, the nozzle material 50 is sleeved on the test component 30, and the current signal is transmitted to the nozzle material 50 through the power supply component 10.

[0067] S102: An arc burning test is performed on the nozzle material through a current signal to form an arc.

[0068] For example, see Figure 2The power supply component 10 is electrically connected to the test component 40 , and the test component 40 receives the current signal provided by the power supply component 10 . According to the influence of the current signal on the test component 40 , an arc burning test is performed on the nozzle material 50 , and an arc is generated on the nozzle material 50 .

[0069] S103: receiving and processing the sensing electrical signal of the nozzle material to obtain current data, voltage data and air pressure data, wherein the sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal.

[0070] For example, referring to Figure 2 The signal processing component 20 first receives the current sensing electrical signal, voltage sensing electrical signal and air pressure sensing electrical signal of the nozzle material 50 when the arc burns on the surface of the nozzle material 50, and obtains the current data, voltage data and air pressure data in the test chamber during the arc burning test by processing and analyzing these signals.

[0071] S104: Detect the temperature data of the nozzle material.

[0072] For example, referring to Figure 2 The infrared component 30 is connected to the nozzle material 50 through wireless communication, and the infrared signal of the nozzle material 50 during the arc test is detected in real time according to the non-contact measurement method, and the temperature data of the nozzle material 50 is obtained through the signal.

[0073] S105: Evaluate the nozzle material through the current data, voltage data, gas pressure data and temperature data of the nozzle material during the arc formation process under the effects of different output currents.

[0074] Exemplarily, the voltage standard parameter, current standard parameter, air pressure standard parameter and temperature standard parameter are determined according to the current data, voltage data, air pressure data and temperature data of the nozzle material 50 under different output currents; the voltage variation parameter, current variation parameter, air pressure variation parameter and temperature variation parameter are determined according to the voltage standard parameter, current standard parameter, air pressure standard parameter and temperature standard parameter; the multi-parameter dynamic decision factor is determined according to the voltage variation parameter, current variation parameter, air pressure variation parameter and temperature variation parameter; the voltage weight, current weight, air pressure weight and temperature weight are determined according to the multi-parameter dynamic decision factor; the combined weighted multi-parameter dynamic decision factor is determined according to the voltage weight, current weight, air pressure weight and temperature weight; the nozzle material 50 is evaluated according to the comparison of the combined weighted multi-parameter dynamic decision factor with the qualified threshold, good threshold and excellent threshold, and the performance of the nozzle material 50 is divided into four levels: unqualified, qualified, good and excellent.

[0075] From the above description, it can be seen that the arc burning test is carried out on the nozzle material of the environmentally friendly gas circuit breaker to form an arc. The temperature data, current data, voltage data and air pressure data of the nozzle material during the arc formation process directly reflect the dynamic changes of the nozzle material and its surrounding environment during the arc burning process. By comprehensively considering the weights and dynamic changes of multiple parameters such as air pressure, current, voltage and temperature, the performance of the nozzle material can be evaluated more comprehensively and accurately.

[0076] like Figure 3 As shown, Figure 3 A flow chart of another embodiment of a nozzle material evaluation method provided by the present invention. A nozzle material evaluation method specifically includes:

[0077] S201: Output current signal.

[0078] S202: An arc burning test is performed on the nozzle material through a current signal to form an arc.

[0079] S203: receiving and processing the sensing electrical signal of the nozzle material to obtain current data, voltage data and air pressure data, wherein the sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal.

[0080] S204: Detect the temperature data of the nozzle material.

[0081] It should be noted that steps S201-S204 are Figure 4 This has been discussed in detail in the implementation scenario shown and will not be repeated here.

[0082] S205: Determine voltage standard parameters, current standard parameters, air pressure standard parameters and temperature standard parameters according to the current data, voltage data, air pressure data and temperature data of the nozzle material under different output currents.

[0083] Combined with reference Figure 2 , by setting the output current of the power supply component 10, current signals of different sizes are generated. Under the action of different current signals, the nozzle material is evaluated through the current data, voltage data, air pressure data and temperature data of the nozzle material 50 during the arc formation process. Specifically, the output current of the power supply component 10 is set to 1kA (the first output current), and the voltage data from the positive electrode port 231 of the voltage signal and the negative electrode port 232 of the voltage signal are collected by the integrated processor 23, which is recorded as U1; the current data from the current signal port 233 is collected by the integrated processor 23, which is recorded as I1; the air pressure data from the air pressure signal port 234 is collected by the integrated processor 23, which is recorded as P1; at the same time, the temperature data from the infrared component 40 is collected, which is recorded as T1.

[0084] Furthermore, the output current of the power supply component 1010 is set to 5kA, and the voltage data from the voltage signal positive port 231 and the voltage signal negative port 232 are collected through the integrated processor 23, which is recorded as U2; the current data from the current signal port 233 is collected through the integrated processor 23, which is recorded as I2; the air pressure data from the air pressure signal port 234 is collected through the integrated processor 23, which is recorded as P2; at the same time, the temperature data from the infrared component 40 is collected, which is recorded as T2.

[0085] Furthermore, the output of the power supply component 10 is set to 10kA, and the voltage data from the voltage signal positive port 231 and the voltage signal negative port 232 are collected through the integrated processor 23, which is recorded as U3; the current data from the current signal port 233 is collected through the integrated processor 23, which is recorded as I3; the air pressure data from the air pressure signal port 234 is collected through the integrated processor 23, which is recorded as P3; at the same time, the temperature data from the infrared component 40 is collected, which is recorded as T3.

[0086] Furthermore, the output of the power supply component 10 is set to 15kA, and the voltage data from the voltage signal positive port 231 and the voltage signal negative port 232 are collected through the integrated processor 23, which is recorded as U4; the current data from the current signal port 233 is collected through the integrated processor 23, which is recorded as I4; the air pressure data from the air pressure signal port 234 is collected through the integrated processor 23, which is recorded as P4; at the same time, the temperature data from the infrared component 40 is collected, which is recorded as T4.

[0087] Furthermore, the output of the power supply component 10 is set to 20kA, and the voltage data from the voltage signal positive port 231 and the voltage signal negative port 232 are collected through the integrated processor 23, which is recorded as U5; the current data from the current signal port 233 is collected through the integrated processor 23, which is recorded as I5; the air pressure data from the air pressure signal port 234 is collected through the integrated processor 23, which is recorded as P5; at the same time, the temperature data from the infrared component 40 is collected, which is recorded as T5.

[0088] Further, the voltage standard parameter, current standard parameter, air pressure standard parameter and temperature standard parameter are determined according to the current data, voltage data, air pressure data and temperature data of the nozzle material 50. Specifically, the voltage standard parameter is determined according to the following formula:

[0089]

[0090] Among them, a i is the voltage standard parameter, U 1 is the voltage data under the first output current, U 2 is the voltage data under the second output current, U 3is the voltage data under the third output current, U 4 is the voltage data under the fourth output current.

[0091] The current standard parameter is determined according to the following formula:

[0092]

[0093] Among them, b i is the standard parameter of current, I 1 is the current data under the first output current, I 2 is the current data under the second output current, I 3 is the current data under the third output current, I 4 is the current data under the fourth output current.

[0094] The standard parameters of air pressure are determined according to the following formula:

[0095]

[0096] Among them, C i is the standard parameter of air pressure, P i is the air pressure data, P 1 is the air pressure data under the first output current, P 2 is the air pressure data under the second output current, P 3 is the air pressure data under the third output current, P 4 is the air pressure data under the fourth output current.

[0097] The temperature standard parameter is determined according to the following formula:

[0098]

[0099] Among them, d i is the temperature standard parameter, T 1 is the temperature data under the first output current, T 2 is the temperature data under the second output current, T 3 is the temperature data under the third output current, T 4 is the temperature data under the fourth output current.

[0100] S206: Determine voltage variation parameters, current variation parameters, air pressure variation parameters, and temperature variation parameters according to voltage standard parameters, current standard parameters, air pressure standard parameters, and temperature standard parameters.

[0101] Exemplarily, the voltage variation parameter is determined according to the following formula:

[0102]

[0103] Among them, a i is the voltage standard parameter, i∈(1, 2, 3, 4, 5), and e1 is the voltage variation parameter.

[0104] The current variation parameter is determined according to the following formula:

[0105]

[0106] Among them, b i is the standard current parameter, i∈(1, 2, 3, 4, 5), and e2 is the current variation parameter.

[0107] The air pressure variation parameter is determined according to the following formula:

[0108]

[0112] Among them, c i is the standard parameter of air pressure, i∈(1, 2, 3, 4, 5), e 3 is the air pressure variation parameter.

[0113] The temperature variation parameter is determined according to the following formula:

[0114]

[0115] Among them, e 4 is the temperature variation parameter, d i is the standard temperature parameter, i∈(1, 2, 3, 4, 5).

[0116] S207: Determine a multi-parameter dynamic decision factor according to the voltage variation parameter, the current variation parameter, the air pressure variation parameter, and the temperature variation parameter.

[0117] Exemplarily, the multi-parameter dynamic decision factor is determined according to the following formula:

[0118]

[0119] Among them, is a multi-parameter dynamic decision factor, e1 is a voltage variation parameter, e2 is a current variation parameter,

[0120] θe3 is the pressure variation parameter, e4 is the temperature variation parameter, and x is the independent variable in the integral.

[0121] S208: Determine voltage weight, current weight, air pressure weight and temperature weight according to voltage standard parameters, current standard parameters, air pressure standard parameters, temperature standard parameters, voltage variation parameters, current variation parameters, air pressure variation parameters and temperature variation parameters.

[0122] Exemplarily, the voltage weight is determined according to the following formula:

[0123]

[0124] Among them, f 1 is the voltage weight, a i is the voltage standard parameter, i∈(1, 2, 3, 4, 5), e 1 is the voltage variation parameter.

[0125] The current weight is determined according to the following formula:

[0126]

[0127] Among them, f 2 is the current weight, b i is the current standard parameter, i∈(1, 2, 3, 4, 5), e 2 is the current variation parameter.

[0128] The air pressure weight is determined according to the following formula:

[0129]

[0130] Among them, f 3 is the air pressure weight, c i is the voltage standard parameter, i∈(1, 2, 3, 4, 5), e 3 is the air pressure variation parameter.

[0131] The temperature weight is determined according to the following formula:

[0132]

[0133] Among them, f 4 is the temperature weight, d i is the temperature standard parameter, i∈(1, 2, 3, 4, 5), e 4 is the temperature variation parameter.

[0134] S209: Determine a combined weighted multi-parameter dynamic decision factor according to the voltage weight, the current weight, the air pressure weight, and the temperature weight.

[0135] Exemplarily, the combined weighted multi-parameter dynamic decision factor is determined according to the following formula:

[0136]

[0137] Among them, f 1 is the voltage weight, f 2 is the current weight, f 3 is the air pressure weight, f 4 is the temperature weight.

[0138] S210: Evaluate the nozzle material based on the comparison between the combined weighted multi-parameter dynamic decision factor and the qualified threshold, good threshold and excellent threshold, and divide the performance of the nozzle material into four levels: unqualified, qualified, good and excellent.

[0139] Exemplarily, the qualified threshold, the good threshold and the excellent threshold are respectively set to: ε 1 =0.156, ε 2 =6.121,ε 3 = 20.156. The nozzle material 50 is evaluated based on the comparison between the combined weighted multi-parameter dynamic decision factor and the qualified threshold, the good threshold and the excellent threshold, and the performance of the nozzle material 50 is divided into four levels: unqualified, qualified, good and excellent.

[0140] S211: If it is determined that the combined weighted multi-parameter dynamic decision factor is less than or equal to the qualified threshold, the performance level of the nozzle material is classified as unqualified.

[0141] For example, if δ≤ε 1 At this time, the performance of the high-voltage circuit breaker nozzle material tested is unqualified and is not recommended for use in high-voltage circuit breakers of any specifications.

[0142] S212: If it is determined that the combined weighted multi-parameter dynamic decision factor is greater than the qualified threshold and less than or equal to the good threshold, the performance level of the nozzle material is classified as qualified.

[0143] For example, if ε 1 <δ≤ε 2 At this time, the performance of the high-voltage circuit breaker nozzle material tested is qualified and is recommended for use in high-voltage circuit breakers with voltage levels of 40.5kV and below.

[0144] S213: If it is determined that the combined weighted multi-parameter dynamic decision factor is greater than a good threshold and less than or equal to an excellent threshold, the performance level of the nozzle material is classified as good.

[0145] For example, if ε 2 <δ≤ε 3 , the nozzle material of the high-voltage circuit breaker tested at this time has good performance and is recommended for use in high-voltage circuit breakers with voltage levels of 126kV and below.

[0146] S214: If it is determined that the combined weighted multi-parameter dynamic decision factor is greater than the excellent threshold, the performance level of the nozzle material is classified as excellent.

[0147] For example, if δ>ε 3 The high-voltage circuit breaker nozzle material tested at this time has excellent performance and is recommended for use in high-voltage circuit breakers with voltage levels of 252kV and below.

[0148] like Figure 2 As shown, Figure 2 The present invention provides a schematic structural diagram of an arc burning test device according to an embodiment of the present invention. The arc burning test device 1 is used to obtain current data, voltage data, air pressure data and temperature data of a nozzle material 50 during arc formation. The arc burning test device 1 specifically comprises: a power supply component 10, a signal processing component 20, an infrared component 30 and a test component 40.

[0149] The power supply assembly 10 is electrically connected to the test assembly 40 , and the power supply assembly 10 is used to output a current signal.

[0150] Exemplarily, the power supply assembly 10 is the power source of the entire test device, and is responsible for providing a stable and adjustable current signal. Specifically, the power supply assembly 10 is electrically connected to the test assembly 30 through a cable, the nozzle material 50 is sleeved on the test assembly 30, and the current signal is transmitted to the nozzle material 50 through the power supply assembly 10. Further, according to the influence of the current signal on the test assembly 30, an arc is generated, and the arc burns on the surface of the nozzle material 50, thereby simulating the arc erosion that the nozzle material 50 may encounter during the actual operation of the high-voltage circuit breaker.

[0151] The test assembly 40 , the power supply assembly 10 is electrically connected to the test assembly 40 , and the test assembly 40 is used to perform an arc burning test on the nozzle material through a current signal to form an arc.

[0152] Exemplarily, the test assembly 30 is the core part of the arc burning test device to simulate the working environment of the high-voltage circuit breaker nozzle material 50 under the action of the arc. Specifically, the power supply assembly 10 is electrically connected to the test assembly 40, and the test assembly receives the current signal provided by the power supply assembly 10, and performs an arc burning test on the nozzle material 50 according to the influence of the current signal on the test assembly 40.

[0153] The signal processing component 20 is connected to the test component 40 and is used to receive and process the sensing electrical signal of the nozzle material 50 to obtain current data, voltage data and air pressure data. The sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal.

[0154] Exemplarily, the signal processing component 20 is connected to the test component. The signal processing component 20 first receives the current sensing electrical signal, voltage sensing electrical signal and air pressure sensing electrical signal of the nozzle material 50 when the arc burns on the surface of the nozzle material 50, and obtains the current data, voltage data and air pressure data in the test chamber during the arc burning test by processing and analyzing these signals.

[0155] The infrared component 30 is connected to the nozzle material 50 via wireless communication to detect the temperature data of the nozzle material 50 .

[0156] Exemplarily, the infrared component 30 is connected to the nozzle material 50 through wireless communication, and the infrared signal of the nozzle material 50 during the arc test is detected in real time according to the non-contact measurement method, and the temperature data of the nozzle material 50 is obtained through the signal. Specifically, the infrared component 40 includes an infrared thermal imager or an infrared thermometer. The infrared thermal imager can capture the temperature distribution image of the surface of the nozzle material 50, while the infrared thermometer can accurately measure the temperature of a specific point.

[0157] It can be seen from the above description that the present invention is electrically connected to the test component through the power component, and outputs a stable and controllable current signal to the test component through the power component. The test component receives the current signal from the power component, and performs an arc test on the nozzle material through the current signal to form an arc. The infrared component is connected to the nozzle material through wireless communication, realizing non-contact temperature measurement, so that during the arc test, the temperature change of the nozzle material can be monitored in real time without worrying about the impact of the measuring equipment on the test environment or results. At the same time, the sensor electrical signal from the test component is received in real time through the signal processing component, including the current sensor electrical signal and the air pressure sensor electrical signal, and then the current data, voltage data and air pressure data are extracted. The nozzle material of the high-voltage circuit breaker is evaluated by temperature data, current data, voltage data and air pressure data. The experimental device of the present invention is simpler, the parameters considered are more comprehensive, and the data processing method is more scientific, which can more effectively reflect the performance of the material in practical applications, thereby providing a more scientific basis for the selection and optimization of materials.

[0158] Among them, temperature data, current data, voltage data and gas pressure data directly reflect the dynamic changes of the nozzle material and its surrounding environment during the arc burning process, which is of great significance for analyzing the nozzle material's arc erosion resistance, electrical insulation performance and heat dissipation performance.

[0159] like Figure 4 As shown, Figure 4 The schematic diagram of another embodiment of an arc test device provided by the present invention is as follows. The test assembly 30 includes a first electrode 31, a second electrode 34 and an arc-striking wire 37. The first electrode 31 and the second electrode 34 are connected by the arc-striking wire 37. The first electrode 31 and the second electrode 34 are used to receive current signals and provide current signals to the arc-striking wire 37.

[0160] A nozzle material 50 is sleeved at the connecting section of the arc-striking wire 37. One end of the nozzle material 50 is sleeved on the end of the first electrode 31, and the other end is sleeved on the end of the second electrode 34 to form a cavity. The cavity is used to accommodate the arc-striking wire. The arc-striking wire is used to perform an arc burning test on the nozzle material 50 through a current signal to form an arc.

[0161] For example, referring to Figure 5, Figure 5 This is a diagram illustrating the key dimensions of the arc test device provided by the present invention. The first electrode 31 and the second electrode 34 are connected by an arc-starting wire 37, and the first electrode 31 and the second electrode 34 are used to receive current signals and provide current signals to the arc-starting wire 37. A nozzle material 50 is sleeved at the connecting section of the arc-starting wire 37, and one end of the nozzle material 50 is sleeved at the end of the first electrode 31, and the other end is sleeved at the end of the second electrode 34. The first electrode 31 sleeved with the nozzle material 50 and the second electrode 34 are aligned and placed along the horizontal axis, and the distance between the first electrode 31 sleeved with the nozzle material 50 and the second electrode 34 is set to 5 mm. A cavity is formed between the nozzle material 50 and the first electrode 31 and the second electrode 34, and the cavity is used to accommodate the arc-striking wire 37. The left side of the arc-striking wire 37 is connected to the right side of the first electrode 31 on which the nozzle material 50 to be tested is sleeved, and the right side of the arc-striking wire 37 is connected to the left side of the second electrode 34. The arc-striking wire 37 is used to perform an arc burning test on the nozzle material 50 through a current signal to form an arc.

[0162] Continue reading Figure 2 The test assembly 30 also includes a first fixing clamp 32, a first insulating seat 33, a second fastening clamp and a second insulating seat 36; the first electrode 31 is fastened to the first insulating seat 33 through the first fixing clamp 32, the first fixing clamp 32 is used to fix the first electrode 31, and the first insulating seat 33 is used to support the fixed first electrode 31.

[0163] The second electrode 34 is fastened to the second insulating seat 36 via a second fixing fixture, the second fixing fixture is used to fix the second electrode 34, and the second insulating seat 36 is used to support the fixed second electrode 34.

[0164] For example, referring to Figure 5 , connect the current positive terminal 11 of the power supply component 10 to the first fixing fixture 32 through the first cable 61, and connect the current negative terminal 12 of the power supply component 10 to the second fixing fixture 33 through the second cable 62, so as to realize the electrical connection between the power supply component 10 and the test component 30. Place the first electrode 31 on the first insulating support, fix the first electrode 31 with the first conductive fixing fixture on the first insulating support, and set the distance between the left end of the first fixing fixture 32 and the first electrode 31 to 10 mm, place the second electrode 34 on the second insulating support, fix the second electrode 34 with the second fixing fixture on the second insulating support, and set the distance between the right end of the second fixing fixture and the second electrode 34 to 10 mm.

[0165] When the nozzle material 50 is sleeved, the nozzle material 50 is inserted from the right side of the first electrode 31 and moved to contact the right side of the first insulating support. Further, the nozzle material 50 is moved above the arc-striking wire 37 so that the distance between the right end of the nozzle material 50 and the left end of the second electrode 34 is 25 mm.

[0166] Continue reading Figure 2 The signal processing component 20 includes a current mutual inductance coil 21, an air pressure sensor 22 and an integrated processor 23. The first electrode 31 is electrically connected to the positive pole of the power supply component 10; the second electrode 34 is electrically connected to the negative pole of the power supply component 10, and a current mutual inductance coil 21 is arranged on the connecting line. The current mutual inductance coil 21 is used to detect the current sensing electrical signal of the nozzle material 50.

[0167] The nozzle material 50 on the side wall of the cavity is provided with a through hole 51 . The through hole 51 is used to accommodate the air pressure sensor 22 . The air pressure sensor 22 is used to detect the air pressure sensing electrical signal of the nozzle material 50 .

[0168] The integrated processor 23 is electrically connected to the test assembly 30 and is used to receive and process the sensing electrical signal of the nozzle material 50 to obtain current data, voltage data and air pressure data. The sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal.

[0169] Exemplarily, the signal processing component 20 includes a current mutual inductance coil 21, an air pressure sensor 22 and an integrated processor 23. The first electrode 31 is electrically connected to the positive electrode of the power supply component 10 through a first cable 61; the second electrode 34 is electrically connected to the negative electrode of the power supply component 10 through a second cable 62. The high-frequency current mutual inductance coil 21 is inserted into the second cable 62, and the current sensing electrical signal of the nozzle material 50 is received by the current mutual inductance coil 21 when the arc burns on the surface of the nozzle material 50.

[0170] A through hole 51 is opened in the nozzle material 50 on the side wall of the cavity, and the air pressure sensor 22 is placed in the through hole 51 on the nozzle material 50. Specifically, other sensors can be installed in the through hole 51 of the nozzle material 50 by threaded connection, press-fitting or gluing, etc., to ensure that the sensor and the inner wall of the nozzle are well sealed to prevent gas leakage from affecting the measurement accuracy. When the arc burns on the surface of the nozzle material 50, the air pressure sensing electrical signal of the nozzle material 50 is received by the air pressure sensor.

[0171] The integrated processor 23 is electrically connected to the test assembly 30. When the arc burns on the surface of the nozzle material 50, the voltage sensing electrical signal of the nozzle material 50 is received by the integrated processor 23. By processing and analyzing the current sensing signal, the voltage sensing signal and the air pressure sensing signal, the current data, the voltage data and the air pressure data in the test chamber during the arc burning test are obtained.

[0172] Continue reading Figure 4 The integrated processor 23 includes a voltage signal port, a current signal port 233 and an air pressure signal port 234. The current mutual inductance coil 21 is electrically connected to the current signal port 233. The current signal port 233 is used to receive a current sensing electrical signal and obtain current data through the current sensing electrical signal.

[0173] The first fixing fixture 32 is electrically connected to the positive pole of the voltage signal port, and the second fixing fixture is electrically connected to the negative pole of the voltage signal port. The voltage signal port is used to detect and process the voltage sensing electrical signal of the nozzle material 50 to obtain voltage data.

[0174] The air pressure signal port 234 is electrically connected to the air pressure sensor 22 , and the air pressure sensor 22 is used to receive and transmit air pressure data inside the cavity.

[0175] Exemplarily, the voltage signal port includes a voltage signal positive port 231 and a voltage signal negative port 232. The voltage signal positive port 231 of the integrated processor 23 is electrically connected to the first fixing fixture 32 through a voltage probe positive cable 6363, and the voltage signal negative port 232 of the integrated processor 23 is connected to the second fixing fixture through a voltage probe negative cable 64. The voltage sensing electrical signal of the nozzle material 50 is detected and processed through the voltage signal port to obtain voltage data. The high-frequency current mutual inductance coil 21 is connected to the current signal port 233 of the integrated processor 23 using a current coil communication cable 65, and the current sensing electrical signal is received through the current signal port 233, and the current data is obtained through the current sensing electrical signal. The air pressure sensor 22 is connected to the air pressure signal port 234 of the integrated processor 23 using an air pressure sensor communication cable 66, and the air pressure data inside the cavity is received and transmitted through the air pressure sensor 22.

[0176] The infrared component 40 is aligned with the infrared temperature measuring point 41 of the nozzle material 50 , and the horizontal distance between the infrared component 40 and the nozzle material 50 is 2000 mm.

[0177] like Figure 6 As shown, Figure 6 A schematic diagram of the structure of an embodiment of an environmental protection gas circuit breaker nozzle material evaluation system based on a combined weighted multi-parameter dynamic decision factor provided by the present invention. The environmental protection gas circuit breaker nozzle material evaluation system 70 based on a combined weighted multi-parameter dynamic decision factor specifically includes:

[0178] The arc burning test module 71 is used to output a current signal; perform an arc burning test on the nozzle material through the current signal to form an arc; receive and process the sensing electrical signal of the nozzle material to obtain current data, voltage data and air pressure data, the sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal; and detect the temperature data of the nozzle material.

[0179] Exemplarily, in the arc burning test module 71, an arc burning test device 1 is used to perform an arc burning test on the nozzle material 50 of the environmental gas circuit breaker, and the current data, voltage data, air pressure data and temperature data of the nozzle material 50 during the arc formation process are obtained. Specifically, according to the output current signal of the power supply component 10; the test component 40 performs an arc burning test on the nozzle material through the current signal to form an arc; the signal processing component 20 receives and processes the sensor electrical signal of the nozzle material, and obtains the current data, voltage data and air pressure data, and the sensor electrical signal includes the current sensor electrical signal and the air pressure sensor electrical signal; the infrared component 30 detects the temperature data of the nozzle material.

[0180] The environmentally friendly gas circuit breaker nozzle material evaluation module 72 is used to evaluate the environmentally friendly gas circuit breaker nozzle material according to the current data, voltage data, pressure data and temperature data of the nozzle material during the arc formation process under the action of different output currents.

[0181] Exemplarily, in the environmental protection gas circuit breaker nozzle material evaluation module 72, according to the current data, voltage data, air pressure data and temperature data of the nozzle material under different output currents, the voltage standard parameter, the current standard parameter, the air pressure standard parameter and the temperature standard parameter are determined; according to the voltage standard parameter, the current standard parameter, the air pressure standard parameter and the temperature standard parameter, the voltage variation parameter, the current variation parameter, the air pressure variation parameter and the temperature variation parameter are determined; according to the voltage variation parameter, the current variation parameter, the air pressure variation parameter and the temperature variation parameter, the multi-parameter dynamic decision factor is determined. sub; determine voltage weight, current weight, air pressure weight and temperature weight according to voltage standard parameters, current standard parameters, air pressure standard parameters, temperature standard parameters, voltage variation parameters, current variation parameters, air pressure variation parameters and temperature variation parameters; determine combined weighted multi-parameter dynamic decision factor according to voltage weight, current weight, air pressure weight and temperature weight; evaluate nozzle material according to comparison between combined weighted multi-parameter dynamic decision factor and qualified threshold value, good threshold value and excellent threshold value, and divide the performance of nozzle material into four grades: unqualified, qualified, good and excellent.

[0182] like Figure 7 As shown, Figure 7 The device 80 includes a memory 81 and a processor 82. The memory 81 stores a computer program, and the processor 82 executes the computer program when working to implement the following. Figure 1 and Figure 3 The method shown.

[0183] The specific technical details of a nozzle material evaluation method implemented when the above-mentioned device 20 executes a computer program have been discussed in detail in the aforementioned method steps, so they will not be repeated here.

[0184] like Figure 8 As shown, Figure 8 The storage medium 90 stores at least one computer program 91, which is executed by the processor 82 to implement the following. Figure 1 and Figure 3 In one embodiment, the medium 90 may be a storage chip, a hard disk, a mobile hard disk, a USB flash drive, an optical disk, or other readable and writable storage tools, or a server, etc.

[0185] The above describes specific embodiments of the present specification, and other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily have to be performed in the specific order or sequential order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0186] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment, and non-volatile computer-readable storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0187] The apparatus, device, non-volatile computer-readable storage medium and method provided in the embodiments of this specification correspond to each other, and therefore, the apparatus, device, and non-volatile computer storage medium also have similar beneficial technical effects as the corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the corresponding apparatus, device, and non-volatile computer storage medium will not be repeated here.

[0188] The systems, devices, modules or units described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0189] For the convenience of description, the above device is described by being divided into various units according to their functions and described separately. Of course, when implementing this specification, the functions of each unit can be implemented in one or more software and / or hardware. It should be understood by those skilled in the art that this specification embodiment can be provided as a method, system, or computer program product. Therefore, this specification embodiment can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this specification embodiment can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0190] This specification is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of this specification. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0191] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0192] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0193] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0194] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0195] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0196] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0197] This specification may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. This specification may also be practiced in distributed computing environments where tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules may be located in local and remote computer storage media, including storage devices.

[0198] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0199] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A method for evaluating nozzle materials of environmentally friendly gas circuit breakers based on combined weighted multi-parameter dynamic decision factors, characterized in that: The method specifically comprises: Output current signal; Performing an arc burning test on the nozzle material by using the current signal to form an arc; Receive and process the sensing electrical signal of the nozzle material to obtain current data, voltage data and air pressure data, wherein the sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal; Detecting temperature data of the nozzle material; Under the effect of different output currents, the nozzle material of the environmentally friendly gas circuit breaker is evaluated through the current data, voltage data, gas pressure data and temperature data of the nozzle material during the arc formation process.

2. The nozzle material evaluation method based on combined weighted multi-parameter dynamic decision factors according to claim 1 is characterized in that: The evaluating of the nozzle material of the environmentally friendly gas circuit breaker according to the current data, voltage data, gas pressure data and temperature data of the nozzle material during the arc formation process specifically includes: Determine voltage standard parameters, current standard parameters, air pressure standard parameters and temperature standard parameters according to the current data, voltage data, air pressure data and temperature data of the nozzle material under different output currents; Determining a voltage variation parameter, a current variation parameter, an air pressure variation parameter, and a temperature variation parameter according to the voltage standard parameter, the current standard parameter, the air pressure standard parameter, and the temperature standard parameter; Determining a multi-parameter dynamic decision factor according to the voltage variation parameter, the current variation parameter, the air pressure variation parameter and the temperature variation parameter; Determine the voltage weight, current weight, air pressure weight and temperature weight according to the voltage standard parameter, current standard parameter, air pressure standard parameter, temperature standard parameter, voltage variation parameter, current variation parameter, air pressure variation parameter and temperature variation parameter; Determine a combined weighted multi-parameter dynamic decision factor according to the voltage weight, current weight, air pressure weight and temperature weight; The nozzle material is evaluated based on the comparison between the combined weighted multi-parameter dynamic decision factor and the qualified threshold, good threshold and excellent threshold, and the performance of the nozzle material is divided into four levels: unqualified, qualified, good and excellent.

3. The nozzle material evaluation method based on combined weighted multi-parameter dynamic decision factors according to claim 2 is characterized in that: The nozzle material is evaluated according to the comparison between the combined weighted multi-parameter dynamic decision factor and the qualified threshold, the good threshold and the excellent threshold, and the performance of the nozzle material is divided into four levels: unqualified, qualified, good and excellent, specifically including: Determining that the combined weighted multi-parameter dynamic decision factor is less than or equal to the qualified threshold, classifying the performance level of the nozzle material as unqualified; Determining that the combined weighted multi-parameter dynamic decision factor is greater than the qualified threshold and less than or equal to the good threshold, the performance level of the nozzle material is classified as qualified; Determining that the combined weighted multi-parameter dynamic decision factor is greater than the good threshold and less than or equal to the excellent threshold, the performance level of the nozzle material is classified as good; If it is determined that the combined weighted multi-parameter dynamic decision factor is greater than the excellent threshold, the performance level of the nozzle material is classified as excellent.

4. A nozzle material evaluation method according to claim 3, characterized in that: The determining of the combined weighted multi-parameter dynamic decision factor according to the voltage weight, current weight, air pressure weight and temperature weight specifically includes: according to Determine the combined weighted multi-parameter dynamic decision factor, where f1 is the voltage weight, f2 is the current weight, f3 is the air pressure weight, and f4 is the temperature weight.

5. An arc burning test device, characterized in that: The arc burning test device is used to obtain the current data, voltage data, air pressure data and temperature data of the nozzle material during the arc formation process as claimed in claim 1. The arc burning test device specifically includes: a power supply component, a signal processing component, an infrared component and a test component. The power supply component is electrically connected to the test component for outputting a current signal The test component, the power supply component is electrically connected to the test component, and the test component is used to perform an arc burning test on the nozzle material to form an arc through the current signal; The signal processing component is connected to the test component, and is used to receive and process the sensing electrical signal of the nozzle material, and obtain current data, voltage data and air pressure data, wherein the sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal; The infrared component is connected to the nozzle material via wireless communication and is used to detect temperature data of the nozzle material.

6. An arc burning test device according to claim 5, characterized in that: The test assembly comprises a first electrode, a second electrode and an arc-starting wire, The first electrode and the second electrode are connected via the arc-striking wire, and the first electrode and the second electrode are used to receive the current signal and provide the current signal to the arc-striking wire; The nozzle material is sleeved on the connecting section of the arc-striking wire, one end of the nozzle material is sleeved on the end of the first electrode, and the other end is sleeved on the end of the second electrode to form a cavity, and the cavity is used to accommodate the arc-striking wire, and the arc-striking wire is used to perform an arc burning test on the nozzle material through the current signal to form an arc.

7. An arc burning test device according to claim 6, characterized in that: The test assembly also includes a first fixing fixture, a first insulating seat, a second fastening fixture and a second insulating seat; The first electrode is fastened to the first insulating seat via the first fixing fixture, the first fixing fixture is used to fix the first electrode, and the first insulating seat is used to support the fixed first electrode; The second electrode is fastened to the second insulating seat via the second fixing fixture, the second fixing fixture is used to fix the second electrode, and the second insulating seat is used to support the fixed second electrode.

8. An arc burning test device according to claim 7, characterized in that: The signal processing component includes the current mutual inductance coil, the air pressure sensor and the integrated processor, The first electrode is electrically connected to the positive electrode of the power supply assembly; the second electrode is electrically connected to the negative electrode of the power supply assembly, and a current mutual inductance coil is provided on the connecting line, and the current mutual inductance coil is used to detect the current sensing electrical signal of the nozzle material; The nozzle material of the side wall of the cavity is provided with a through hole, the through hole is used to accommodate the air pressure sensor, and the air pressure sensor is used to detect the air pressure sensing electrical signal of the nozzle material; The integrated processor is electrically connected to the test assembly and is used to receive and process the sensing electrical signal of the nozzle material to obtain current data, voltage data and air pressure data. The sensing electrical signal includes the current sensing electrical signal and the air pressure sensing electrical signal.

9. An arc burning test device according to claim 8, characterized in that: The integrated processor includes a voltage signal port, a current signal port and an air pressure signal port. The current mutual inductance coil is electrically connected to the current signal port, and the current signal port is used to receive the current sensing electrical signal and obtain the current data through the current sensing electrical signal; The first fixing fixture is electrically connected to the positive electrode of the voltage signal port, and the second fixing fixture is electrically connected to the negative electrode of the voltage signal port, and the voltage signal port is used to detect and process the voltage sensing electrical signal of the nozzle material to obtain voltage data; The air pressure signal port is electrically connected to the air pressure sensor, and the air pressure sensor is used to receive and transmit air pressure data inside the cavity.

10. An arc burning test device according to claim 9, characterized in that: The infrared component receives an infrared signal of the cavity side wall formed by the nozzle material, and acquires temperature data of the nozzle material through the infrared signal.

11. An environmental protection gas circuit breaker nozzle material evaluation system based on combined weighted multi-parameter dynamic decision factors, characterized in that: The system specifically comprises: The arc burning test module is used to output a current signal; perform an arc burning test on the nozzle material through the current signal to form an arc; receive and process the sensing electrical signal of the nozzle material to obtain current data, voltage data and air pressure data, wherein the sensing electrical signal includes a current sensing electrical signal and an air pressure sensing electrical signal; and detect the temperature data of the nozzle material; The environmentally friendly gas circuit breaker nozzle material evaluation module is used to evaluate the nozzle material of the environmentally friendly gas circuit breaker through the current data, voltage data, air pressure data and temperature data of the nozzle material during the arc formation process under the action of different output currents.

12. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the processor is caused to perform the steps of the method according to any one of claims 7 to 10.

13. A computer device comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method according to any one of claims 7 to 10.

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