Insulation evaluation method, system and equipment of high-voltage power equipment and storage medium

Abstract

The invention discloses an insulation evaluation method of high-voltage power equipment, an insulation evaluation system of the high-voltage power equipment, insulation evaluation equipment of the high-voltage power equipment and a storage medium, and belongs to the technical field of power equipment. Physical characteristic data of insulating oil in an oil tank of a transformer are obtained, wherein the physical characteristic data comprise temperature data, water content data and acid value data; determining aging data of the insulating paperboard in the insulating oil according to the physical characteristic data; determining insulating oil score data in different states according to the physical characteristic data and the corresponding transformer power; and determining an insulation evaluation result of the transformer according to the aging data and the insulation oil scoring data. Real-time insulation evaluation of the power equipment is realized.

Description

Technical Field

[0001] The present invention relates to the field of electric power equipment, and in particular to an insulation evaluation method for high-voltage electric power equipment, an insulation evaluation system for high-voltage electric power equipment, insulation evaluation equipment for high-voltage electric power equipment, and a storage medium. Background Art

[0002] In high-voltage power equipment, it is necessary to evaluate the insulation performance of the power equipment, for example, it is necessary to test the insulation performance of the transformer windings and cores to avoid equipment failure due to insulation failure. At present, the commonly used method is to conduct regular maintenance, during which insulation resistance tests and equipment appearance inspections are performed. This regular maintenance method cannot evaluate the insulation of high-voltage power equipment in real time, resulting in low real-time detection.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide an insulation evaluation method for high-voltage power equipment, aiming to achieve real-time insulation evaluation of the power equipment.

[0005] To achieve the above object, the present invention provides an insulation evaluation method for high-voltage electric power equipment, the insulation evaluation method for high-voltage electric power equipment comprising the following steps:

[0006] Acquire physical characteristic data of insulating oil in an oil tank of a transformer, wherein the physical characteristic data includes: temperature data, water content data and acid value data;

[0007] Determine aging data of the insulating paperboard in the insulating oil according to the physical characteristic data;

[0008] Determine insulating oil scoring data in different states according to the physical characteristic data and the corresponding transformer power;

[0009] An insulation evaluation result of the transformer is determined according to the aging data and the insulating oil rating data.

[0010] Optionally, the step of determining aging data of insulating paperboard in insulating oil according to the physical characteristic data comprises:

[0011] Determining the paperboard discharge power of the insulating paperboard according to the physical characteristic data and the first corresponding relationship;

[0012] Determine the paperboard aging time of the insulating paperboard according to the discharge power and the second corresponding relationship, and use the paperboard aging time as the aging data;

[0013] The first corresponding relationship is a corresponding relationship between discharge power and physical characteristic data, and the second corresponding relationship is a corresponding relationship between discharge power and a standard aging time under a standard aging state.

[0014] Optionally, before the step of determining the aging data of the insulating paperboard in the insulating oil according to the physical characteristic data, the step further includes:

[0015] Aging the insulating paperboard according to different aging physical characteristic conditions to obtain a plurality of test insulating paperboards, and performing a partial discharge test on the plurality of test insulating paperboards to obtain a first discharge power of each test insulating paperboard, wherein the plurality of test insulating paperboards correspond to the aging physical characteristic conditions respectively;

[0016] The first corresponding relationship is generated according to a plurality of the first discharge powers and corresponding aging physical characteristic conditions.

[0017] Optionally, after the step of generating the first corresponding relationship according to the plurality of first discharge powers and corresponding aging physical characteristic conditions, the method further includes:

[0018] Calculating first average discharge powers corresponding to different aging physical characteristic conditions according to the multiple first discharge powers;

[0019] Test the second average discharge power of the test insulation paperboard under standard aging conditions and different aging times;

[0020] The second corresponding relationship is generated according to the first average discharge power, the second average discharge power, and the corresponding aging duration.

[0021] Optionally, the step of determining insulating oil scoring data in different states according to the physical characteristic data and the corresponding transformer power includes:

[0022] Calculate first scoring data of insulating oil according to the temperature data and the transformer power;

[0023] Determine second scoring data of the insulating oil according to the water content data, the acid value data and the transformer inspection standard;

[0024] The insulating oil score data is calculated based on the insulating oil first score data and the insulating oil second score data.

[0025] Optionally, the step of determining the insulation evaluation result of the transformer according to the aging data and the insulating oil rating data comprises:

[0026] When the aging data reaches a first preset data interval, and the insulating oil score data reaches a second preset data interval, determining that the insulation evaluation result is up to standard;

[0027] When the aging data does not reach the first preset data interval, or when the insulating oil score data does not reach the second preset data interval, it is determined that the insulation evaluation result is that the insulation meets the standard.

[0028] Optionally, the step of obtaining physical characteristic data of insulating oil in an oil tank of the transformer includes:

[0029] The physical characteristic data are collected simultaneously at a preset frequency.

[0030] The present invention proposes an insulation evaluation method for high-voltage power equipment by obtaining physical characteristic data of insulating oil in an oil tank of a transformer, and determining aging data of insulating paperboard in the insulating oil according to the physical characteristic data, which actually determines the aging condition of the insulating paper and reflects the insulation performance, and determines insulating oil scoring data in different states according to the physical characteristic data and the corresponding transformer power, thereby accurately determining the insulating oil scoring data, determining the insulation evaluation result of the transformer according to the aging data and the insulating oil scoring data, and further realizing real-time evaluation of the insulation performance of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of an insulation evaluation device for high-voltage power equipment in a hardware operating environment involved in an embodiment of the present invention;

[0032] Figure 2 It is a flow chart of a first embodiment of the insulation evaluation method of high-voltage power equipment of the present invention;

[0033] Figure 3 A schematic flow chart of a second embodiment of the insulation evaluation method for high-voltage power equipment of the present invention;

[0034] Figure 4 It is a flow chart of a third embodiment of the insulation evaluation method of high-voltage power equipment of the present invention;

[0035] Figure 5 It is a flow chart of a fourth embodiment of the insulation evaluation method for high-voltage power equipment of the present invention.

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0038] Reference Figure 1 , Figure 1The present invention is a schematic diagram of the structure of an insulation evaluation device for high-voltage power equipment in the hardware operating environment involved in an embodiment of the present invention.

[0039] like Figure 1 As shown, the insulation evaluation equipment of the high-voltage power equipment may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, an interactive device 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The interactive device 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional interactive device 1003 may also be connected to the communication bus through a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0040] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the insulation evaluation device of high-voltage power equipment, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently. The insulation evaluation device of high-voltage power equipment can be applied to the field of high-voltage power control and can be used to monitor the insulation condition of transformers in power systems.

[0041] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a data storage module, a network communication module, a user interface module, and an insulation evaluation program for high-voltage power equipment.

[0042] exist Figure 1 In the insulation evaluation device of the high-voltage electric power equipment shown, the network interface 1004 is mainly used for data communication with other devices; the interactive device 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the insulation evaluation device of the high-voltage electric power equipment of the present invention can be set in the insulation evaluation device of the high-voltage electric power equipment, and the insulation evaluation device of the high-voltage electric power equipment calls the insulation evaluation program of the high-voltage electric power equipment stored in the memory 1005 through the processor 1001, and executes the insulation evaluation method of the high-voltage electric power equipment provided by the embodiment of the present invention.

[0043] The embodiment of the present invention provides a method for evaluating the insulation of high-voltage power equipment. Figure 2 , Figure 2 The figure is a flow chart of a first embodiment of an insulation evaluation method for high-voltage electric power equipment according to the present invention.

[0044] In this embodiment, the insulation evaluation method for high-voltage power equipment is applied to a transformer and includes:

[0045] Step S10, obtaining physical characteristic data of the insulating oil in the oil tank of the transformer, wherein the physical characteristic data includes: temperature data, water content data and acid value data;

[0046] It should be noted that the transformer here is an oil-immersed transformer. Specifically, the oil-immersed transformer uses insulating oil as a cooling and insulating medium, and in the mainstream oil-immersed transformer, in addition to insulating oil, it also includes insulating paperboard, referred to as oil-paper composite insulation. In the process of evaluating the insulation of the high-voltage power equipment, the insulation paper and the insulating oil are evaluated for insulation respectively, and then the insulation evaluation result of the high-voltage power equipment is determined by comprehensively evaluating the insulating paper and the insulating oil. In addition, it should be noted that in addition to being applied to transformers, this embodiment can also be applied to other high-voltage power equipment that has insulating oil and insulating paper like transformers. The temperature data, water content data and acid value data here are physical parameters of the insulating oil in the transformer, which can be obtained by setting sensors corresponding to the physical parameters, for example: setting a temperature sensor to collect the temperature data, and setting a pH value sensor to collect the acid value data. Of course, the physical characteristic data here can also be: particle size data, gas content data and dielectric loss, etc. Specifically, the particle size data here is the data of particles greater than or equal to 5 microns in the insulating oil. The gas content data here can be one or more of total hydrocarbons, oxygen, hydrogen and acetylene.

[0047] Step S20, determining aging data of the insulating paperboard in the insulating oil according to the physical characteristic data;

[0048] In this embodiment, it should be noted that the physical characteristic data here is actually the environment in which the insulating paperboard is located. The aging degree of the insulating paperboard is different in different insulating oil environments. Therefore, it is necessary to calculate the aging data in the insulating oil environment before and after the current moment based on the physical characteristic data. That is, the role of the physical characteristic data in step S20 is to serve as the operating environment of the insulating paperboard to determine the aging of the paperboard under the physical characteristic data. It should be further explained that in step S20, in order to improve the accuracy of the aging data, the time range of the physical characteristic data can be before the current moment. Therefore, the duration of the physical characteristic data will also affect the aging data of the insulating paperboard.

[0049] Step S30, determining insulating oil scoring data in different states according to the physical characteristic data and the corresponding transformer power;

[0050] In step S30, the physical characteristic data here should be the data collected at the current moment. Of course, optionally, for some physical characteristic data with a lower change range, the data before the current moment can be used. Optionally, the transformer power corresponding to the physical characteristic data is obtained, and a standard physical characteristic data parameter table is determined according to the transformer power. The insulating oil score data of the transformer power is determined in the standard physical characteristic data parameter table according to the physical characteristic data. It should be noted that the different states here refer to different transformer powers. Of course, it can also be different transformer operating states, such as: no-load state, load state, overload state, hot state, test state and cooling state. The hot state here refers to the transformer entering a protection state due to a temperature increase caused by long-term overload or other reasons. Specifically, when the transformer enters different operating states, the corresponding physical characteristic data can be recorded, and the insulating oil score data in the corresponding state can be determined. Since the operating mode of the transformer is affected

[0051] Step S40: determining an insulation evaluation result of the transformer according to the aging data and the insulating oil rating data.

[0052] A weighted average score is calculated based on the aging data and the insulating oil scoring data, and the insulation evaluation result is determined based on the weighted average score. It should be noted that, optionally, the insulating oil scoring data here can be a result obtained by comparing various parameters with standard physical characteristic data.

[0053] In this embodiment, by acquiring the physical characteristic data of the insulating oil in the oil tank of the transformer, and determining the aging data of the insulating paperboard in the insulating oil according to the physical characteristic data, the aging condition of the insulating paper is actually determined, and the insulation performance is reflected, and the insulating oil scoring data in different states is determined according to the physical characteristic data and the corresponding transformer power, so that the insulating oil scoring data can be accurately determined, and the insulation evaluation result of the transformer is determined according to the aging data and the insulating oil scoring data, so as to realize real-time evaluation of the insulation performance of the transformer.

[0054] Further, based on the first embodiment, a second embodiment of the insulation evaluation of high-voltage power equipment of the present invention is proposed. In this embodiment, referring to Figure 3 The step of determining the aging data of the insulating paperboard in the insulating oil according to the physical characteristic data comprises:

[0055] Step S21, determining the paperboard discharge power of the insulating paperboard according to the physical characteristic data and the first corresponding relationship;

[0056] The first corresponding relationship here can be a function, a table, a formula, etc. Optionally, since the physical characteristic data here include data at the current moment and before the current moment, the first corresponding relationship here can be a function curve, and the physical characteristic data are matched with the aging physical characteristic conditions respectively, and the discharge power corresponding to the aging physical characteristic condition with the highest matching degree is determined as the paperboard discharge power. Of course, it can also be a mathematical formula, and the physical characteristic data is substituted into the data formula to calculate the paperboard discharge power. Of course, the mathematical formula here can be obtained through aging experiments.

[0057] Step S22, determining the aging time of the insulating paperboard according to the discharge power and the second corresponding relationship, and using the aging time of the paperboard as the aging data;

[0058] The first corresponding relationship is a corresponding relationship between discharge power and physical characteristic data, and the second corresponding relationship is a corresponding relationship between discharge power and a standard aging time under a standard aging state.

[0059] In this embodiment, the second corresponding relationship here is to convert the discharge power into the standard aging time corresponding to the standard aging state. The standard aging state here is to heat to 140 degrees Celsius in an aging test chamber. After a period of time at 140 degrees Celsius, insulating cardboards with different aging degrees are obtained, and multiple groups of partial discharge tests are performed on the aged insulating cardboards, and the average discharge power of the aged insulating cardboards under different voltages is calculated. Specifically, insulating cardboards with aging times of 0 hours, 50 hours, 150 hours, 300 hours, and 600 hours are provided, and the multiple groups of discharge powers of the insulating cardboards with different aging degrees under voltages of 7kv, 8kv, and 9kv are calculated to calculate the corresponding average discharge power. The second corresponding relationship is determined according to the aging time and the corresponding average discharge power.

[0060] In this embodiment, the discharge power of the insulating paperboard is determined by the physical characteristic data and the first corresponding relationship, and the aging time of the insulating paperboard is determined according to the discharge power and the second corresponding relationship, and the aging time of the paperboard is used as the aging data, thereby achieving a unified parameter evaluation of the aged insulating paperboard under different physical characteristic data.

[0061] Further, based on the first embodiment or the second embodiment, a third embodiment of the insulation evaluation of high-voltage power equipment of the present invention is proposed. In this embodiment, referring to Figure 4 , before the step of determining the aging data of the insulating paperboard in the insulating oil according to the physical characteristic data, it also includes:

[0062] Step S201, aging the insulating paperboard according to different aging physical characteristic conditions to obtain a plurality of test insulating paperboards, and performing a partial discharge test on the plurality of test insulating paperboards to obtain a first discharge power of each test insulating paperboard, wherein the plurality of test insulating paperboards correspond to the aging physical characteristic conditions respectively;

[0063] It should be noted that the average discharge power is an important parameter for measuring the insulation paperboard, and in the aged insulation paperboard, due to aging, the more severely aged the insulation paperboard is, the greater the average discharge power is. In this embodiment, the actual aging level of different aging physical characteristic conditions is measured by the average discharge power. The partial discharge test here is actually to test the performance status of the insulation paperboard after aging.

[0064] Step S202, generating the first corresponding relationship according to a plurality of the first discharge powers and corresponding aging physical characteristic conditions;

[0065] The first corresponding relationship here includes the first discharge power corresponding to different aging physical characteristic conditions at different aging times. Of course, in other embodiments, in order to determine the first discharge power and the corresponding aging physical characteristic conditions, the aging physical characteristic conditions can be used as input data and the corresponding first discharge power can be used as the output result to obtain a data set, and the data set is 70% as a training set and 30% as a test set. The neural network model is trained to obtain an electric power prediction model for preset discharge power. The neural network model here can be a convolutional neural network model or a recurrent neural network model.

[0066] In this embodiment, the insulating paperboard is aged according to different aging physical characteristic conditions to obtain a plurality of test insulating paperboards. Since the obtained test insulating paperboards represent the aging of the insulating paperboards by the corresponding aging physical characteristics, a partial discharge test is performed on the plurality of test insulating paperboards to determine the first discharge power, and generate the first corresponding relationship according to the plurality of the first discharge powers and the corresponding aging physical characteristic conditions, thereby improving the accuracy of the insulation evaluation method for high-voltage power equipment.

[0067] Furthermore, after the step of generating the first corresponding relationship according to the plurality of the first discharge powers and the corresponding aging physical characteristic conditions, the method further includes:

[0068] Calculating first average discharge powers corresponding to different aging physical characteristic conditions according to the multiple first discharge powers;

[0069] Testing the second average discharge power of the test insulating paperboard under standard aging conditions and different standard aging times;

[0070] The second corresponding relationship is generated according to the first average discharge power, the second average discharge power, and the corresponding standard aging time.

[0071] In this embodiment, since the second corresponding relationship is the corresponding relationship between the discharge power and the aging time under the standard aging state, that is, the first average discharge power is the electric power corresponding to different aging physical characteristic conditions, and cannot directly establish a corresponding relationship with the standard aging, it is necessary to map the first average discharge power and the second average discharge power one-to-one, and generate the second corresponding relationship based on the second average electric power and the corresponding standard aging time.

[0072] Further, based on any of the above embodiments, a fourth embodiment of the insulation evaluation of high-voltage power equipment of the present invention is proposed. In this embodiment, referring to Figure 5 The step of determining insulating oil scoring data in different states according to the physical characteristic data and the corresponding transformer power comprises:

[0073] Step S31, calculating first scoring data of insulating oil according to the temperature data and the transformer power;

[0074] It should be noted that the temperature data and the standard insulating oil temperature data corresponding to the transformer power are calculated, and when the difference between the temperature data and the standard insulating oil temperature data is greater, the first insulating oil score data is smaller.

[0075] Step S32, determining second scoring data of the insulating oil according to the water content data, the acid value data and the transformer inspection standard;

[0076] In this embodiment, the second scoring data of the insulating oil is determined according to the water content data, the acid value data and the transformer inspection standard by comparing the water content data and the acid value data with the corresponding inspection standards. For example, in the inspection item standard of transformer oil in operation, the standard for water content is less than or equal to 15 mg / kg, and the requirement for acid value is less than or equal to 0.1 mgKOH / g.

[0077] Step S33: calculating the insulating oil scoring data according to the insulating oil first scoring data and the insulating oil second scoring data.

[0078] Specifically, the insulating oil scoring data may be obtained by performing a weighted calculation on the first scoring data and the second scoring data of the insulating oil.

[0079] In this embodiment, the first scoring data of the insulating oil is calculated according to the temperature data and the transformer power, and the second scoring data of the insulating oil is determined according to the water content data, the acid value data and the transformer inspection standard. In fact, the corresponding scoring data is obtained by comparing the collected data with the inspection standard. This method is not to directly perform resistivity test, but to determine it by direct data comparison. Therefore, the scoring data of the insulating oil determined in this way can be more real-time and accurate than the method of extracting insulation and conducting electrical experiments to determine the insulation performance.

[0080] Further, based on any of the above embodiments, a fifth embodiment of the insulation evaluation of high-voltage power equipment of the present invention is proposed. In this embodiment, the step of determining the insulation evaluation result of the transformer according to the aging data and the insulating oil scoring data includes:

[0081] When the aging data reaches a first preset data interval, and the insulating oil score data reaches a second preset data interval, determining that the insulation evaluation result is up to standard;

[0082] When the aging data does not reach the first preset data interval, or when the insulating oil score data does not reach the second preset data interval, it is determined that the insulation evaluation result is that the insulation meets the standard.

[0083] In this embodiment, there is no relationship between the first preset data interval and the second preset data interval, and they can be set independently. It is also possible to predict the appropriate maintenance time based on the aging data and the insulating oil scoring data. Optionally, the insulation evaluation result here can be a data value. Since in this embodiment, the physical characteristic data of the insulating oil in the insulating oil tank is obtained by the sensor at a preset frequency, the insulation evaluation result can also be calculated in real time, and the maintenance time can be determined according to the change of the insulation evaluation result.

[0084] Furthermore, the step of obtaining the physical characteristic data of the insulating oil in the oil tank of the transformer includes:

[0085] The physical characteristic data are collected simultaneously at a preset frequency.

[0086] It should be noted that, since the sensors of the detected parameters do not affect each other, the physical characteristic data can be collected simultaneously at a preset frequency.

[0087] In this embodiment, the physical characteristic data are collected simultaneously at a preset frequency, thereby ensuring that the data are collected at the same time, thereby improving the real-time performance of detecting the insulation performance of high-voltage power equipment.

[0088] In addition, an embodiment of the present invention further provides an insulation evaluation system for high-voltage power equipment, the insulation evaluation system for high-voltage power equipment comprising:

[0089] An acquisition module is used to acquire physical characteristic data of the insulating oil in the oil tank of the transformer, wherein the physical characteristic data includes: temperature data, water content data and acid value data;

[0090] An identification module, used to determine aging data of the insulating paperboard in the insulating oil according to the physical characteristic data;

[0091] A calculation module, used to determine insulating oil scoring data in different states according to the physical characteristic data and the corresponding transformer power;

[0092] A judgment module is used to determine the insulation evaluation result of the transformer according to the aging data and the insulating oil scoring data.

[0093] In addition, an embodiment of the present invention also proposes an insulation evaluation device for high-voltage electric power equipment, which includes: a memory, a processor, and an insulation evaluation program for high-voltage electric power equipment stored in the memory and executable on the processor, wherein the insulation evaluation program for high-voltage electric power equipment is configured to implement the steps of the insulation evaluation method for high-voltage electric power equipment described in any one of the above items.

[0094] In addition, an embodiment of the present invention further proposes a storage medium, on which an insulation evaluation program for high-voltage power equipment is stored. When the insulation evaluation program for high-voltage power equipment is executed by a processor, the steps of the insulation evaluation method for high-voltage power equipment described in any one of the above items are implemented.

[0095] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system 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, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0096] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0097] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0098] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for evaluating the insulation of high-voltage power equipment, characterized in that: The insulation evaluation method of the high-voltage power equipment comprises the following steps: Acquire physical characteristic data of insulating oil in an oil tank of a transformer, wherein the physical characteristic data includes: temperature data, water content data and acid value data; Determine aging data of the insulating paperboard in the insulating oil according to the physical characteristic data; Determine insulating oil scoring data in different states according to the physical characteristic data and the corresponding transformer power; An insulation evaluation result of the transformer is determined according to the aging data and the insulating oil rating data.

2. The insulation evaluation method for high-voltage power equipment according to claim 1, characterized in that: The step of determining the aging data of the insulating paperboard in the insulating oil according to the physical characteristic data comprises: Determining the paperboard discharge power of the insulating paperboard according to the physical characteristic data and the first corresponding relationship; Determine the paperboard aging time of the insulating paperboard according to the discharge power and the second corresponding relationship, and use the paperboard aging time as the aging data; The first corresponding relationship is a corresponding relationship between discharge power and physical characteristic data, and the second corresponding relationship is a corresponding relationship between discharge power and a standard aging time under a standard aging state.

3. The insulation evaluation method for high-voltage power equipment according to claim 2, characterized in that: Before the step of determining the aging data of the insulating paperboard in the insulating oil according to the physical characteristic data, the method further includes: Aging the insulating paperboard according to different aging physical characteristic conditions to obtain a plurality of test insulating paperboards, and performing a partial discharge test on the plurality of test insulating paperboards to obtain a first discharge power of each test insulating paperboard, wherein the plurality of test insulating paperboards correspond to the aging physical characteristic conditions respectively; The first corresponding relationship is generated according to a plurality of the first discharge powers and corresponding aging physical characteristic conditions.

4. The insulation evaluation method for high-voltage power equipment according to claim 3, characterized in that: After the step of generating the first corresponding relationship according to the plurality of the first discharge powers and the corresponding aging physical characteristic conditions, the method further includes: Calculating first average discharge powers corresponding to different aging physical characteristic conditions according to the multiple first discharge powers; Test the second average discharge power of the test insulation paperboard under standard aging conditions and different aging times; The second corresponding relationship is generated according to the first average discharge power, the second average discharge power, and the corresponding aging duration.

5. The insulation evaluation method for high-voltage power equipment according to claim 1, characterized in that: The step of determining insulating oil scoring data in different states according to the physical characteristic data and the corresponding transformer power comprises: Calculate first scoring data of insulating oil according to the temperature data and the transformer power; Determine second scoring data of the insulating oil according to the water content data, the acid value data and the transformer inspection standard; The insulating oil score data is calculated based on the insulating oil first score data and the insulating oil second score data.

6. The insulation evaluation method for high-voltage power equipment according to claim 1, characterized in that: The step of determining the insulation evaluation result of the transformer according to the aging data and the insulating oil rating data comprises: When the aging data reaches a first preset data interval, and the insulating oil score data reaches a second preset data interval, determining that the insulation evaluation result is up to standard; When the aging data does not reach the first preset data interval, or when the insulating oil score data does not reach the second preset data interval, it is determined that the insulation evaluation result is that the insulation meets the standard.

7. The insulation evaluation method for high-voltage power equipment according to any one of claims 1 to 6, characterized in that: The step of obtaining the physical characteristic data of the insulating oil in the oil tank of the transformer comprises: The physical characteristic data are collected simultaneously at a preset frequency.

8. An insulation evaluation system for high-voltage power equipment, characterized in that: The insulation evaluation system of the high-voltage power equipment comprises: An acquisition module is used to acquire physical characteristic data of the insulating oil in the oil tank of the transformer, wherein the physical characteristic data includes: temperature data, water content data and acid value data; An identification module, used to determine aging data of the insulating paperboard in the insulating oil according to the physical characteristic data; A calculation module, used to determine insulating oil scoring data in different states according to the physical characteristic data and the corresponding transformer power; A judgment module is used to determine the insulation evaluation result of the transformer according to the aging data and the insulating oil scoring data.

9. An insulation evaluation device for high-voltage power equipment, characterized in that: The insulation evaluation device of the high-voltage electric power equipment comprises: a memory, a processor, and an insulation evaluation program of the high-voltage electric power equipment stored in the memory and executable on the processor, wherein the insulation evaluation program of the high-voltage electric power equipment is configured to implement the steps of the insulation evaluation method of the high-voltage electric power equipment as described in any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores an insulation evaluation program for high-voltage electric power equipment, and when the insulation evaluation program for high-voltage electric power equipment is executed by a processor, the steps of the insulation evaluation method for high-voltage electric power equipment according to any one of claims 1 to 7 are implemented.

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