Method, device and computer equipment for simulating dirt adhesion for surface cleaning test of cable terminal porcelain sleeve

Abstract

The application relates to a simulation contamination adhesion method, device and computer equipment for cable terminal head porcelain sleeve surface cleaning test. The method comprises the following steps: obtaining pretreatment parameters corresponding to a cable terminal head, controlling a cleaning device to perform a cleaning operation on the sleeve surface of the cable terminal head according to the pretreatment parameters, taking the cleaned sleeve surface as a target insulation surface; determining a target adhesion area in the target insulation surface according to insulation structure characteristics of the cable terminal head, controlling a contamination adhesion device to apply pre-prepared simulation contamination slurry to the target adhesion area; controlling an environment adjusting device to adjust the environment state of the target adhesion area according to environment parameters; controlling a voltage generating device to apply a voltage to the cable terminal head according to preset voltage parameters, and determining a verification result of the simulation contamination layer according to response data of the target insulation surface to the voltage. The method can improve the reliability of the cable terminal head porcelain sleeve surface cleaning test.

Description

Technical Field

[0001] This application relates to the field of power equipment maintenance and testing technology, and in particular to a method, apparatus, computer equipment, storage medium and program product for simulating dirt adhesion for cleaning tests on the surface of ceramic sleeves of cable termination heads. Background Technology

[0002] Porcelain-sheathed outdoor cable terminations are crucial external insulation components in power cable lines. Their outer surfaces are constantly exposed to the atmosphere, making them prone to natural dust and dirt accumulation. Under actual operating conditions, dirt deposition on the porcelain sheath surface exhibits significant spatial non-uniformity, and its adhesion typically displays variations in layering and bonding strength. This dirt deposition can trigger abnormal temperature rises and even cause dirt to scatter, necessitating surface cleaning. Therefore, it is essential to conduct experimental research on porcelain sheath surface cleaning.

[0003] In cable termination surface cleaning tests, it is usually necessary to pre-apply an artificial contamination layer to the porcelain bushing surface. Existing methods for contamination adhesion often involve simple brushing, spraying, or immersion, mixing salt solutions and dust before covering the insulation surface. However, these methods lack sufficient control over the adhesion location and bonding condition of the contamination layer, making it difficult to accurately reflect the field application effect and resulting in low reliability of cable termination porcelain bushing surface cleaning tests. Summary of the Invention

[0004] Therefore, it is necessary to provide a method, apparatus, computer equipment, computer-readable storage medium, and computer program product for simulating dirt adhesion in cable terminal head porcelain bushing surface cleaning tests, which can improve the reliability of such tests.

[0005] In a first aspect, this application provides a method for simulating contamination adhesion in a cleaning test of the porcelain bushing surface of a cable termination, comprising:

[0006] Obtain the pre-processing parameters corresponding to the cable terminal head, and control the cleaning equipment to perform a cleaning operation on the sleeve surface of the cable terminal head according to the pre-processing parameters, and use the cleaned sleeve surface as the target insulation surface;

[0007] Based on the insulation structure characteristics of the cable terminal head, the target attachment area in the target insulation surface is determined, and based on the preset contamination control parameters, the contamination attachment device is controlled to apply the pre-prepared simulated contamination slurry to the target attachment area.

[0008] Obtain the environmental parameters corresponding to the target adhesion state, and control the environmental conditioning device to adjust the environmental state of the target adhesion area according to the environmental parameters, so that the simulated dirt slurry can build a simulated dirt layer on the target insulation surface that satisfies the target adhesion state;

[0009] According to preset voltage parameters, the voltage generating device is controlled to apply voltage to the cable terminal head, and the verification result of the simulated contamination layer is determined based on the response data of the target insulation surface to the voltage.

[0010] In one embodiment, the insulation structure features include the spatial location features of the stress cone inside the cable termination; determining the target attachment area in the target insulation surface based on the insulation structure features of the cable termination includes:

[0011] The target attachment area in the target insulation surface is determined based on the first umbrella skirt area on the target insulation surface that corresponds to the internal stress cone in the radial direction, and the second umbrella skirt area adjacent to the first umbrella skirt area.

[0012] The second umbrella skirt area includes a region where umbrella skirts of different sizes are alternately distributed.

[0013] In one embodiment, the fouling control parameters include salt density parameters and ash density parameters; the step of controlling the fouling attachment device to apply pre-prepared simulated fouling slurry to the target attachment area according to the preset fouling control parameters includes:

[0014] Based on the salt density parameter and the ash density parameter, the dirt adhesion device is controlled to perform a coating operation on the target adhesion area using the pre-prepared simulated dirt slurry, so as to generate a cover layer of the simulated dirt slurry on the target adhesion area; the thickness of the cover layer is less than a preset thickness threshold.

[0015] The process involves controlling the environmental conditioning device to perform a drying process on the covering layer, and then returning to the step of controlling the dirt adhesion device to perform a coating operation on the target adhesion area based on the salt density parameter and the ash density parameter, until a preset stop condition is met.

[0016] In one embodiment, the target adhesion state includes one of a loose state, a wet state, and a consolidated state; the environmental parameters include the target ambient temperature and the target ambient humidity; the step of controlling the environmental conditioning device to adjust the environmental state of the target adhesion area according to the environmental parameters includes:

[0017] Based on the target ambient temperature and the target ambient humidity, the environmental conditioning device is controlled to adjust the temperature around the target attachment area to the target ambient temperature and the humidity around the target attachment area to the target ambient humidity.

[0018] In one embodiment, the response data includes thermal distribution image data; determining the verification result of the simulated contamination layer based on the response data of the target insulating surface to the voltage includes:

[0019] The temperature acquisition device is controlled to acquire a first temperature value of the target adhesion area and a second temperature value of a reference area on the target insulation surface where the simulated contaminant slurry has not been applied.

[0020] According to preset cleaning parameters, the cleaning equipment is controlled to perform a cleaning operation on the target adhesion area, and the temperature acquisition device is controlled to acquire a third temperature value of the target adhesion area after cleaning.

[0021] If the temperature difference between the first temperature value and the second temperature value reaches a first threshold, and the temperature difference between the first temperature value and the third temperature value reaches a second threshold, the verification result is determined to be that the simulated fouling layer has the ability to reproduce the abnormal temperature rise phenomenon.

[0022] In one embodiment, after determining that the verification result shows the simulated fouling layer has the ability to reproduce the abnormal temperature rise phenomenon, the method further includes:

[0023] The cleaning effect quantification value corresponding to the cleaning parameter is determined based on the temperature difference between the first temperature value and the third temperature value; the greater the temperature difference, the higher the cleaning effect quantification value.

[0024] Based on the quantitative values ​​of the cleaning effect corresponding to the cleaning parameters, a parameter evaluation report is generated for the cleaning parameters.

[0025] Secondly, this application also provides a device for simulating dirt adhesion for a cleaning test of the porcelain bushing surface of a cable termination, comprising:

[0026] The acquisition module is used to acquire the pre-processing parameters corresponding to the cable terminal head, and control the cleaning equipment to perform a cleaning operation on the sleeve surface of the cable terminal head according to the pre-processing parameters, and use the cleaned sleeve surface as the target insulation surface.

[0027] An attachment module is used to determine the target attachment area in the target insulation surface based on the insulation structure characteristics of the cable terminal head, and to control the dirt attachment device to apply pre-prepared simulated dirt slurry to the target attachment area according to preset dirt control parameters.

[0028] An adjustment module is used to acquire environmental parameters corresponding to the target adhesion state, and control an environmental adjustment device to adjust the environmental state of the target adhesion area according to the environmental parameters, so that the simulated dirt slurry can build a simulated dirt layer on the target insulation surface that satisfies the target adhesion state.

[0029] The verification module is used to control a voltage generating device to apply voltage to the cable terminal head according to preset voltage parameters, and to determine the verification result of the simulated contamination layer based on the response data of the target insulation surface to the voltage.

[0030] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the above-described method.

[0031] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described method.

[0032] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the above-described method.

[0033] The aforementioned method, apparatus, computer equipment, computer-readable storage medium, and computer program product for simulating contamination adhesion in cable termination porcelain bushing surface cleaning tests control the cleaning equipment to perform cleaning operations on the bushing surface through pre-processing parameters. This ensures the porcelain bushing surface reaches a relatively clean and dry initial state, reducing the interference of existing surface deposits on the consistency of subsequent simulated contamination adhesion and improving the repeatability of simulated contamination layer construction between multiple tests. Furthermore, by determining the target adhesion area based on the insulation structure characteristics of the cable termination, the simulated contamination slurry is applied to locations matching the actual contamination deposition patterns during operation, rather than uniformly covering or arbitrarily coating. This improves the targeting of the simulated contamination layer's spatial distribution and its closeness to natural dust accumulation. Furthermore... The environmental conditions of the target adhesion area are adjusted according to the environmental parameters corresponding to the target adhesion state, so that the simulated contaminant slurry can complete the fixation process according to the set adhesion state. This allows for the construction of simulated contaminant layers with different adhesion states, enhancing the controllability and diversity of contaminant adhesion states. Finally, the verification results are determined by applying voltage and acquiring the response data of the target insulation surface. This allows for the assessment of whether the constructed simulated contaminant layer effectively reproduces the abnormal temperature rise phenomenon caused by contaminants in actual operation from the perspective of electrothermal response, thus providing an effective basis for evaluating the construction of contaminant layers in cleaning tests. This scheme makes the simulated contaminant layer controllable and verifiable in terms of adhesion location, adhesion state, and electrothermal response characteristics, thereby improving the reliability of cleaning tests on the surface of the porcelain bushing of cable terminations. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is an application environment diagram of a simulated dirt adhesion method for a cleaning test of the ceramic sleeve surface of a cable terminal head, as shown in one embodiment.

[0036] Figure 2 This is a schematic flowchart of a simulated dirt adhesion method for a cleaning test of the ceramic sleeve surface of a cable terminal head, as described in one embodiment.

[0037] Figure 3 This is a before-and-after comparison of a coating operation performed using simulated sludge in one embodiment;

[0038] Figure 4 This is a comparative schematic diagram of a cable termination head before and after cleaning in one embodiment;

[0039] Figure 5 This is a schematic diagram of an abnormal temperature rise location in one embodiment;

[0040] Figure 6 This is a structural block diagram of a simulated dirt adhesion device for a surface cleaning test of a ceramic sleeve of a cable terminal head, as described in one embodiment.

[0041] Figure 7 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0043] In the research of cleaning technology, besides simulating the composition of the dirt itself, how the dirt adheres to the casing surface also directly affects the results of subsequent cleaning tests. Under actual operating conditions, dirt gradually forms under the combined effects of wind transport, humidity changes, surface wetting, and long-term deposition. Its adhesion state usually exhibits certain hierarchical, uniform differences, and degrees of bonding strength. If the simulated dirt adhesion state formed in the experiment deviates significantly from the actual situation, the cleaning test results will be difficult to accurately reflect the field application effect.

[0044] Porcelain-sheathed outdoor cable terminations are crucial external insulation components in power cable lines. Their outer surfaces are constantly exposed to the atmosphere, making them prone to natural dust and dirt accumulation. The deposition of dirt particles on the porcelain sheath surface is influenced by multiple factors, including airflow, electric field, sheath structure, surface roughness, ambient humidity, and particle properties, exhibiting significant spatial non-uniformity. Particularly at the sheath root, areas where large and small sheaths alternate, locally obstructed areas, and external locations corresponding to stress cones, dirt particles are more likely to deposit, agglomerate, and remain for extended periods. Dirt deposition can trigger abnormal temperature rises and even, in severe cases, cause dirt to scatter, necessitating surface cleaning. Therefore, in research on cable termination bushing surface cleaning technology, besides simulating the composition of the dirt itself, how the dirt adheres to the bushing surface directly affects the subsequent cleaning test results. If the simulated dirt adhesion state formed in the experiment deviates significantly from the actual situation, the cleaning test results will fail to accurately reflect the field application effect.

[0045] In cable termination surface cleaning tests or abnormal temperature rise verification tests, it is usually necessary to apply an artificial contamination layer to the porcelain bushing surface beforehand. Existing contamination adhesion methods often involve simple brushing, spraying, or impregnation, mixing salt solutions and dust and then covering the insulation surface. While these methods are easy to operate, they lack sufficient control over the spatial location, thickness, wetness / dryness, adhesion strength, and local coverage morphology of the contamination layer. This makes it difficult to reliably reproduce the actual adhesion characteristics of naturally accumulated outdoor dust on the porcelain bushing skirt surface, thus failing to accurately reproduce the abnormal temperature rise phenomenon.

[0046] In actual operation, natural dust accumulation is not uniformly distributed across the entire porcelain sheath surface, but rather exhibits various states such as localized agglomeration, interconnected pores, weak adhesion, moisture-induced bonding, and salt consolidation. The different states of contamination at various locations affect the distribution of surface leakage current and the heat accumulation process. Studies have shown that abnormal localized temperature rises at porcelain sheath cable terminals often occur in specific shed areas, particularly related to the location of contamination adhesion, shed structure, the dryness / wetness of the contamination, and local potential gradients. Therefore, if artificial contamination layers cannot accurately simulate the spatial distribution and adhesion state of natural dust accumulation, subsequent evaluations of cleaning effectiveness, infrared temperature rise observations, and partial discharge detection results may lack representativeness.

[0047] Furthermore, evaluating cleaning technologies requires not only determining whether contaminants have been removed, but also assessing the removal capabilities of different cleaning methods for wet contaminants, solidified contaminants, locally accumulated thick ash, and contaminants hidden in the umbrella skirt area. Existing contaminant adhesion processes struggle to controllably construct these states and to achieve reproducible comparisons between different contaminant levels, different wet / dry conditions, and different umbrella skirt locations.

[0048] Therefore, there is an urgent need to propose a simulated dirt adhesion method for cleaning tests on the surface of ceramic sleeves of cable terminations. This method should enable simulated dirt to adhere stably to the surface of the ceramic sleeve according to the set salt density, ash density, dry and wet conditions and spatial positions. In particular, it should be able to construct local dirt layers in the alternating areas of the umbrella root, the large and small umbrella skirts, and the area corresponding to the stress cone. This would provide reliable test conditions for evaluating cleaning processes, reproducing abnormal temperature rises, verifying infrared detection, and formulating on-site operation and maintenance strategies.

[0049] The simulated dirt adhesion method for cleaning the surface of ceramic sleeves of cable terminations provided in this application embodiment can be applied to, for example... Figure 1 The application environment shown. The control system includes control device 101, cleaning device 102, dirt attachment device 103, environmental control device 104, and voltage generating device 105.

[0050] The control device 101 may include computer equipment with data processing and device communication control capabilities, such as an industrial control server, a test bench main control terminal, or a distributed test node. The control device 101 establishes communication connections with the cleaning device 102, the dirt attachment device 103, the environmental control device 104, and the voltage generating device 105, respectively. The control device 101 can send control commands to the corresponding devices to control each device to perform corresponding operations.

[0051] The cleaning equipment 102 can refer to equipment used to perform cleaning operations on the surface of the sleeve of a cable termination. The cleaning equipment 102 may include at least one of a cleaning tool, a rinsing device, and a drying device. The cleaning tool is used to remove dust and loose deposits from the sleeve surface, such as a wiping brush or cleaning cloth. The rinsing device is used to perform a rinsing operation on the sleeve surface, such as a deionized water rinsing device. The drying device is used to perform a drying operation on the cleaned sleeve surface, such as a hot air dryer or a constant temperature drying oven. The cleaning equipment 102 receives cleaning control commands from the control device 101 and performs corresponding cleaning and drying operations on the sleeve surface according to the cleaning control commands.

[0052] The dirt adhesion device 103 refers to a device used to apply simulated dirt slurry to a target adhesion area. The dirt adhesion device 103 may include at least one of a coating device, a spraying device, and a wetting device. The coating device applies the simulated dirt slurry to the target adhesion area by brushing or scraping. The spraying device applies the simulated dirt slurry to the target adhesion area by atomizing the slurry. The wetting device completes the application by immersing the target adhesion area in the simulated dirt slurry. The dirt adhesion device 103 receives adhesion control commands from the control device 101 and applies a predetermined amount of simulated dirt slurry to the target adhesion area according to the adhesion control commands.

[0053] The environmental control device 104 refers to a device used to regulate the environmental conditions surrounding the target attachment area. The environmental control device 104 may include a temperature control device and a humidity control device. The temperature control device is used to regulate the temperature around the target attachment area to a target value, and includes a heater, a cooler, or a constant temperature and humidity chamber. The humidity control device is used to regulate the humidity around the target attachment area to a target value, and includes a humidifier, a dehumidifier, or a constant temperature and humidity chamber. The environmental control device 104 receives environmental control commands sent by the control device 101 and adjusts the temperature and humidity around the target attachment area to the corresponding target values ​​according to the environmental control commands.

[0054] The voltage generating device 105 refers to a device used to apply a test voltage to the cable termination. The voltage generating device 105 may include a power frequency test transformer or a series resonant device. The voltage generating device 105 receives voltage control commands from the control device 101 and applies a voltage of corresponding amplitude and duration to the cable termination according to the voltage control commands.

[0055] Based on the above application environment, this application proposes a simulated contamination adhesion method for cleaning tests on the surface of porcelain bushings of cable terminations. This method can be executed by a control device 101. The control device 101 acquires pretreatment parameters corresponding to the cable termination and controls a cleaning device 102 to perform a cleaning operation on the bushing surface of the cable termination according to the pretreatment parameters, using the cleaned bushing surface as the target insulation surface. The control device 101 determines the target adhesion area on the target insulation surface based on the insulation structure characteristics of the cable termination, and controls a contamination adhesion device 103 to apply a pre-prepared simulated contamination slurry to the target adhesion area according to preset contamination control parameters. The control device 101 acquires environmental parameters corresponding to the target adhesion state and controls an environmental adjustment device 104 to adjust the environmental state of the target adhesion area according to the environmental parameters, so that the simulated contamination slurry constructs a simulated contamination layer on the target insulation surface that satisfies the target adhesion state. The control device 101 controls a voltage generator 105 to apply voltage to the cable termination according to preset voltage parameters, and determines the verification result of the simulated contamination layer based on the response data of the target insulation surface to the voltage.

[0056] In one exemplary embodiment, such as Figure 2 As shown, a method for simulating dirt adhesion is provided for a cleaning test of the porcelain bushing surface of a cable termination. This method is applied to... Figure 1 The following explanation uses the control device 101 as an example, including:

[0057] Step S202: Obtain the pre-processing parameters corresponding to the cable terminal head, and control the cleaning equipment to perform a cleaning operation on the sleeve surface of the cable terminal head according to the pre-processing parameters, and use the cleaned sleeve surface as the target insulation surface.

[0058] The cable termination can refer to an insulating enclosure component used at the connection point between a cable end and other electrical equipment. Its outer sleeve is a porcelain bushing, providing external insulation creepage distance and mechanical protection at the cable conductor exit point. The outer surface of the porcelain bushing has umbels spaced axially, the shape and size of which are determined according to the voltage and pollution levels of the cable termination. In this embodiment, the cable termination can refer to a porcelain bushing-type outdoor cable termination, with its bushing surface serving as the target for subsequent cleaning tests and simulated dirt adhesion tests.

[0059] The pretreatment parameters refer to the set of parameters acquired by the control equipment before it performs the cleaning operation on the casing surface. These parameters include cleaning medium parameters, cleaning tool parameters, cleaning process parameters, drying parameters, and degreasing parameters. Cleaning medium parameters include the type and volume of the cleaning fluid, which may include deionized water or anhydrous ethanol. Cleaning tool parameters include the material of the cleaning cloth and the hardness of the wiping brush. Cleaning process parameters include the execution sequence of the cleaning processes and the number of repetitions for each process. Drying parameters include the drying method, drying temperature, and drying time; the drying method may include natural drying, hot air drying, or constant temperature drying. Degreasing parameters include the type and volume of the degreasing agent, which may include industrial alcohol, a specialized degreasing cleaner, or a low-concentration alkaline cleaning solution.

[0060] After acquiring the pretreatment parameters, the control equipment generates a cleaning control command based on these parameters and sends the command to the cleaning equipment. Upon receiving the cleaning control command, the cleaning equipment controls the rinsing device to spray a degreasing agent onto the casing surface according to the degreasing parameters in the command, removing oil and dirt deposits. Then, it performs a cleaning operation on the casing surface according to the cleaning medium and cleaning tool parameters in the command. Specifically, the cleaning equipment first removes floating dust and loose deposits from the casing surface using a wiping brush or cleaning cloth, and then uses a deionized water rinsing device to rinse the casing surface, removing residual soluble deposits and degreasing agent, thus removing floating dust, oil, moisture, and other surface deposits from the casing surface.

[0061] After cleaning, the cleaning equipment performs a drying operation on the casing surface according to the drying parameters. For natural drying, the equipment places the casing in a ventilated environment to allow surface moisture to evaporate naturally. For hot air drying, the equipment controls the hot air dryer to deliver air to the casing surface, causing moisture to evaporate. For constant temperature drying, the equipment places the casing in a constant temperature drying chamber and maintains the temperature at a predetermined time to allow surface moisture to evaporate. Upon completion of the drying operation, the cleaning equipment sends a cleaning completion signal back to the control system.

[0062] After receiving the cleaning completion signal, the control equipment uses the cleaned bushing surface as the target insulation surface. The target insulation surface refers to the outer surface of the porcelain bushing that is clean, dry, and suitable for simulating the adhesion of contaminant slurry. Pre-treatment removes existing dust, oil, moisture, and other surface contaminants, ensuring the porcelain bushing surface is clean, dry, and in an initial state suitable for repeatable testing. This prevents existing contaminants or moisture from interfering with the subsequent simulated contaminant layer adhesion.

[0063] Step S204: Based on the insulation structure characteristics of the cable terminal head, determine the target attachment area on the target insulation surface, and control the dirt attachment device to apply the pre-prepared simulated dirt slurry to the target attachment area according to the preset dirt control parameters.

[0064] The insulation structure characteristics refer to the spatial distribution features of the internal insulation components of the cable termination, including the position of the conductive rod, the thickness distribution of the insulation overlay, the spatial position of the stress cone, and the distribution of the internal shielding layer. The stress cone is a conical insulation structure inside the cable termination used to control the electric field distribution; its position extends along the axial direction of the cable termination and corresponds to a specific area on the outer surface of the cable termination sleeve. The insulation structure characteristics can be obtained from the cable termination design drawings or pre-stored structural parameter tables.

[0065] In one embodiment, before determining the target attachment region on the target insulation surface based on the insulation structure characteristics of the cable termination, the control device also acquires finite element simulation data of the cable termination. The finite element simulation data is obtained by a finite element simulation device through electric field simulation calculations based on the structural model of the cable termination and the insulation material parameters, reflecting the distribution characteristics of the internal and external electric fields of the cable termination under rated voltage. The control device identifies the potential gradient distribution on the target insulation surface based on the finite element simulation data, designates locations with potential gradients higher than a preset gradient threshold as candidate attachment locations, and matches these candidate attachment locations with the corresponding positions of stress cones determined based on the insulation structure characteristics. Successfully matched candidate attachment locations are included in the target attachment region. By combining finite element simulation data to determine the target attachment region, the selection of the target attachment region is based not only on structural correspondence but also on electric field distribution characteristics, improving the accuracy of the correspondence between the target attachment region and the location of abnormal temperature rises during actual operation of the cable termination.

[0066] The target adhesion area refers to the region on the target insulation surface used to apply simulated contaminant slurry. The control equipment determines the corresponding shed area on the target insulation surface based on the spatial position of the stress cone in the insulation structure, and designates this shed area and its adjacent shed areas as the target adhesion area. Based on infrared observations during actual operation of the cable termination, abnormal temperature rise is concentrated in the lower shed area of ​​the bushing, corresponding to the axial extension range of the stress cone inside the cable termination. The control equipment queries the corresponding axial position range of the stress cone based on the cable termination's model parameters, and determines the shed area corresponding to this axial position range on the outer surface of the bushing as the lower shed area. When determining the target adhesion area, the control equipment considers the shed root position as a key adhesion location within the target adhesion area. The shed root position refers to the recessed location at the root where the shed connects to the bushing body. This location forms a groove structure at the bottom of the shed, where contaminant particles easily deposit, agglomerate, and remain for a long time under natural conditions.

[0067] The target adhesion area includes two types: overall coverage area and partial coverage area. The overall coverage area refers to the entire outer surface of the bushing along the axial direction of the cable termination, from the bottom skirt to the top skirt, used to simulate a large-scale dust accumulation. The partial coverage area refers to a selected group of skirts, a single skirt, or a local location on the target insulation surface, including the skirt root location, a single skirt location, alternating locations of large and small skirts, and the location corresponding to the stress cone, used to simulate the focused dust accumulation at specific skirts, skirt roots, or small skirts. The control equipment selects the target adhesion area from the overall and partial coverage areas according to the test objective. For cleaning process comparison tests, the control equipment selects the overall coverage area as the target adhesion area, ensuring the simulated contaminant layer covers the entire outer surface of the bushing to evaluate the overall removal capability of the cleaning equipment for contaminants at different adhesion locations. For abnormal temperature rise reproduction tests, the control equipment selects the partial coverage area as the target adhesion area, concentrating the simulated contaminant layer at common abnormal heating locations to improve the targeting of infrared temperature rise observation and cleaning effect evaluation.

[0068] The fouling control parameters refer to the set of parameters used to control the application process of the simulated fouling slurry, including salt density parameters, ash density parameters, and coverage area parameters. The salt density parameter refers to the amount of soluble salts deposited per unit area in the simulated fouling layer. The ash density parameter refers to the amount of insoluble particulate matter deposited per unit area in the simulated fouling layer. The coverage area parameter refers to the coverage area of ​​the simulated fouling slurry on the target attachment area. The combination of salt density and ash density parameters is used to characterize the fouling level of the simulated fouling layer.

[0069] The simulated contamination slurry refers to a mixture used to construct a simulated contamination layer on the target insulating surface, comprising insoluble mineral particles, soluble salts, a moisture-regulating component, and a dispersion medium. The insoluble mineral particles simulate the dust component in natural dust accumulation. The soluble salts simulate the conductive component in natural dust accumulation. The moisture-regulating component adjusts the moisture absorption properties of the simulated contamination layer. The dispersion medium keeps the solid particles suspended during the coating process.

[0070] In practice, the control device generates an adhesion control command based on the fouling control parameters and sends it to the fouling adhesion device. Upon receiving the command, the fouling adhesion device retrieves pre-prepared simulated fouling slurry from its storage container and applies it to the target adhesion area according to the application method specified in the command. Application methods can include quantitative brushing, spraying, wetting, and coating. When using quantitative brushing, the device extracts a predetermined amount of simulated fouling slurry from the storage container, delivers it to a brush tool, and applies it to the target adhesion area. The predetermined amount is determined based on single-coat usage data, ensuring precise control over the amount of simulated fouling slurry applied in each coating operation. When using spraying, the device atomizes the simulated fouling slurry and sprays it onto the target adhesion area through an atomizing nozzle. When using an immersion method, the contaminant adhesion device immerses the target adhesion area in a simulated contaminant slurry, allowing the simulated contaminant slurry to adhere to the target insulation surface. When using a coating method, the contaminant adhesion device applies the simulated contaminant slurry to the target adhesion area using a scraper tool.

[0071] During the application of simulated fouling slurry, the fouling adhesion device determines the application method of the simulated fouling slurry on the target adhesion area according to a predetermined distribution pattern. The predetermined distribution patterns include a uniform distribution pattern and a non-uniform distribution pattern. In the uniform distribution pattern, the fouling adhesion device applies equal amounts of simulated fouling slurry to different locations on the target adhesion area, resulting in a simulated fouling layer that exhibits uniform coverage. In the non-uniform distribution pattern, the fouling adhesion device applies unequal amounts of simulated fouling slurry to different locations on the target adhesion area, causing the final simulated fouling layer to exhibit localized agglomeration, interconnected pores, and discontinuous coverage, thus replicating the non-uniform distribution characteristics of natural ash accumulation on the surface of the ceramic sleeve skirt. The control device selects the predetermined distribution pattern from the uniform and non-uniform distribution patterns according to the test objective and encapsulates the predetermined distribution pattern in an adhesion control command, sending it to the fouling adhesion device.

[0072] Step S206: Obtain the environmental parameters corresponding to the target adhesion state, and control the environmental conditioning device to adjust the environmental state of the target adhesion area according to the environmental parameters, so that the simulated dirt slurry can build a simulated dirt layer that meets the target adhesion state on the target insulation surface.

[0073] The target adhesion state refers to the adhesion state between the simulated contaminant layer and the target insulation surface, including loose, wet, and solidified states. A loose state means that after the dispersion medium in the simulated contaminant slurry evaporates, the solid particles adhere to the target insulation surface in a dry and loose manner, without a strong bond between the particles or between the particles and the target insulation surface. A wet state means that the dispersion medium in the simulated contaminant slurry has not completely evaporated, or the components maintain a predetermined moisture content through moisture absorption, and the solid particles adhere to the target insulation surface in a moist and adhesive manner. A solidified state means that after the dispersion medium in the simulated contaminant slurry evaporates, soluble salts crystallize and solidify between the particles, resulting in a strong bond between the simulated contaminant layer and the target insulation surface.

[0074] The environmental parameters refer to the target environmental conditioning values ​​corresponding to the target adhesion state, including the target ambient temperature and humidity. Different target adhesion states correspond to different environmental parameters. The loose state corresponds to the temperature and humidity conditions that allow the dispersion medium to volatilize and prevent soluble salts from crystallizing significantly. Under these parameters, the simulated contaminant layer adheres to the target insulation surface in a dry and loose manner, simulating the dry state of naturally accumulated dust after wind and dust deposition without moisture. The humid state corresponds to the temperature and humidity conditions that maintain the simulated contaminant layer at a predetermined moisture content. Under these parameters, soluble salts dissolve to form a conductive liquid film, and the conductivity of the simulated contaminant layer is higher than that of the loose state, simulating the damp state of naturally accumulated dust in foggy, rainy, or high-humidity environments. The solidified state corresponds to the temperature and humidity conditions that allow soluble salts to crystallize and solidify. Under these parameters, the simulated contaminant layer forms a strong bond with the target insulation surface, making it difficult to remove by conventional cleaning methods, simulating the solidified contaminant formed by long-term cycles of moisture and dryness in naturally accumulated dust. The environmental parameters corresponding to each target adhesion state are determined based on the composition characteristics of the simulated sludge and the experimental requirements.

[0075] In practice, the control device obtains corresponding environmental parameters from a preset correspondence based on the target adhesion state, converts these parameters into environmental adjustment commands, and sends these commands to the environmental adjustment equipment. Upon receiving the commands, the environmental adjustment equipment controls the temperature control device based on the target ambient temperature and the humidity control device based on the target ambient humidity. The temperature control device can adjust the temperature around the target adhesion area to the target ambient temperature using a heater, cooler, or constant temperature chamber. The humidity control device can adjust the humidity around the target adhesion area to the target ambient humidity using a humidifier, dehumidifier, or constant temperature and humidity chamber. The environmental adjustment equipment collects real-time temperature and humidity values ​​around the target adhesion area using temperature and humidity sensors, compares these values ​​with the target ambient temperature and humidity, and adjusts the output power of the temperature and humidity control devices based on the comparison results to stabilize the temperature and humidity around the target adhesion area at the target ambient temperature and humidity.

[0076] Once the environmental conditioning equipment reaches the target ambient temperature and humidity around the target adhesion area, it begins timing. After maintaining the target ambient temperature and humidity for the preset conditioning time, it returns an environmental conditioning completion signal to the control equipment. The preset conditioning time is determined based on the composition characteristics of the simulated contaminant slurry and the target adhesion state. After environmental conditioning is completed, the simulated contaminant slurry undergoes a state transition on the target insulation surface, forming a simulated contaminant layer that meets the target adhesion state.

[0077] By mapping the target adhesion state to specific environmental parameters, the adhesion state of the simulated contaminant layer can be selected and constructed according to experimental requirements. For experiments that require studying the cleaning equipment's ability to remove contaminants in different adhesion states, simulated contaminant layers in loose, wet, and solidified states can be constructed on the target insulation surface, respectively. Comparative experiments can then be used to evaluate the cleaning equipment's ability to remove contaminants in different adhesion states, including wet contaminants, solidified contaminants, locally thick dust accumulations, and contaminants in concealed areas of the umbrella skirt.

[0078] Step S208: According to the preset voltage parameters, control the voltage generating device to apply voltage to the cable terminal head, and determine the verification result of the simulated contamination layer based on the response data of the target insulation surface to the voltage.

[0079] The voltage parameters refer to the set of parameters used by the control equipment when applying test voltage to the cable termination by the voltage generating equipment. These parameters include voltage amplitude, application duration, number of applications, and the step-up voltage sequence. The voltage amplitude is determined based on the rated voltage of the cable termination and the test objective. The application duration refers to the duration of a single voltage application. The number of applications refers to the number of times the voltage is applied repeatedly. The step-up voltage sequence refers to the sequence in which the voltage generating equipment gradually increases the voltage amplitude from the initial voltage amplitude to the target voltage amplitude according to predetermined increments, with each voltage increment having a higher amplitude than the previous one.

[0080] The control equipment generates voltage control commands based on voltage parameters and sends them to the voltage generating equipment. Upon receiving the voltage control commands, the voltage generating equipment applies voltage to the cable termination according to the voltage amplitude, application duration, and step-by-step voltage increase sequence specified in the commands. During the step-by-step increase of the applied voltage, the simulated contamination layer on the surface of the cable termination bushing generates an electrothermal response under the applied voltage. During each voltage application stage, the control equipment controls a temperature acquisition device to collect temperature data of the target contamination area, recording the temperature change and stable temperature value of the target contamination area under each voltage level. Based on the inflection point of the temperature change curve of the target contamination area during the step-by-step voltage increase, the critical voltage amplitude for the simulated contamination layer to induce abnormal temperature rise is determined. The response data of the target insulation surface to the voltage is collected by the temperature acquisition device, ultraviolet imager, current sampling device, and surface resistance tester and then transmitted to the control equipment.

[0081] Response data refers to observable data generated on the target insulation surface under applied voltage, including thermal distribution image data, ultraviolet radiation image data, leakage current data, and surface resistance data. Thermal distribution image data is acquired using an infrared thermal imager, reflecting the temperature distribution at various locations on the target insulation surface. Ultraviolet radiation image data is acquired using an ultraviolet imager, reflecting the corona discharge and surface discharge conditions on the target insulation surface, used to determine the presence of localized corona discharge or surface discharge. Leakage current data is acquired using a current sampling device, reflecting the conductivity characteristics of the target insulation surface, used to characterize the impact of different contamination adhesion states on the surface leakage current distribution. Surface resistance data is acquired using a surface resistance tester, reflecting the conductivity of the simulated contamination layer in the target adhesive state, used to determine changes in conductivity after the contamination layer becomes damp.

[0082] In practical applications, for a loose simulated contamination layer, the solid particles in the simulated contamination layer adhere to the target insulation surface in a loosely aggregated manner, without forming continuous conductive channels between the particles, resulting in a high surface resistance value. For a wet simulated contamination layer, the soluble salts in the simulated contamination layer dissolve to form a conductive liquid film, forming continuous conductive channels between the particles, resulting in a low surface resistance value. For a solidified simulated contamination layer, the soluble salts in the simulated contamination layer crystallize and solidify, partially breaking the conductive channels between the particles, resulting in a surface resistance value between the high and low resistance ranges. The control device compares the collected surface resistance data with the standard resistance range corresponding to the target adhesion state. If the surface resistance data is within the standard resistance range, the target adhesion state of the simulated contamination layer is considered successfully constructed; otherwise, the target adhesion state of the simulated contamination layer is considered to have failed to be constructed, and environmental parameters need to be adjusted and the environmental conditioning operation re-executed.

[0083] The verification result refers to the judgment result of whether the simulated dirt layer successfully reproduces the abnormal temperature rise phenomenon. The control equipment determines whether the simulated dirt layer has the ability to reproduce the abnormal temperature rise phenomenon based on the temperature changes in the target adhesion area, the temperature difference with the reference area, and the temperature changes before and after cleaning in the response data. If the target adhesion area exhibits a stable and repeatable local temperature rise under the applied voltage, and the temperature difference with the reference area reaches a preset threshold, and the temperature rise weakens or disappears after cleaning, then the verification result is that the simulated dirt layer has the ability to reproduce the abnormal temperature rise phenomenon; otherwise, the verification result is that the simulated dirt layer does not have the ability to reproduce the abnormal temperature rise phenomenon.

[0084] In the aforementioned simulated contamination adhesion method for cleaning the surface of porcelain bushings in cable termination tests, the cleaning equipment is controlled by pretreatment parameters to perform a cleaning operation on the bushing surface, ensuring the porcelain bushing surface reaches a relatively clean and dry initial state. This reduces the interference of existing surface deposits on the consistency of subsequent simulated contamination adhesion, improving the repeatability of simulated contamination layer construction between multiple tests. Based on this, the target adhesion area is determined according to the insulation structure characteristics of the cable termination, allowing the simulated contamination slurry to be applied to locations matching the actual contamination deposition patterns during operation, rather than uniformly covering or arbitrarily coating. This improves the targeting of the simulated contamination layer's spatial distribution and its closeness to natural dust accumulation. Furthermore, based on the environment corresponding to the target adhesion state... The parameters adjust the environmental conditions of the target adhesion area, enabling the simulated contaminant slurry to complete the fixation process according to the set adhesion state. This allows for the construction of simulated contaminant layers with different adhesion states, enhancing the controllability and diversity of contaminant adhesion states. Finally, the verification results are determined by applying voltage and acquiring the response data of the target insulation surface. This allows for the assessment of whether the constructed simulated contaminant layer effectively reproduces the abnormal temperature rise phenomenon caused by contaminants in actual operation from the perspective of electrothermal response, thus providing an effective evaluation basis for the construction of contaminant layers in cleaning tests. This scheme makes the simulated contaminant layer controllable and verifiable in terms of adhesion location, adhesion state, and electrothermal response characteristics, thereby improving the reliability of cleaning tests on the surface of the porcelain bushing of cable terminations.

[0085] In another embodiment, the insulation structure features include the spatial location features of the internal stress cone of the cable termination head; determining the target attachment area in the target insulation surface based on the insulation structure features of the cable termination head includes: determining the target attachment area in the target insulation surface based on a first shed area on the target insulation surface that corresponds to the internal stress cone in the radial direction, and a second shed area adjacent to the first shed area.

[0086] The first shed region refers to the shed region on the target insulation surface that corresponds to the position of the internal stress cone along the radial direction. The stress cone inside the cable termination extends axially, and its axial position corresponds to one or more specific sheds on the outer surface of the bushing; these sheds constitute the first shed region. The extent of the first shed region is determined based on the axial extension length of the stress cone.

[0087] The second umbrella-skirt region refers to the area adjacent to the first umbrella-skirt region and comprising an alternating distribution of umbrellas of different sizes. The umbrellas on the outer surface of the ceramic sleeve are arranged in an alternating pattern of large and small umbrellas to extend the creepage distance and improve fouling tolerance. This alternating distribution of large and small umbrellas creates a groove structure at the base of the umbrellas, where fouling particles can easily deposit and remain under natural conditions. The selection of the second umbrella-skirt region is based on the aggregation effect of this groove structure on fouling deposition.

[0088] In practice, the control device combines the first and second skirt regions as the target attachment area. In one embodiment, the extent of the target attachment area is determined based on the test objective. For abnormal temperature rise reproduction tests, the target attachment area is limited to the first skirt region and its directly adjacent second skirt region. For overall cleaning effect evaluation tests, the target attachment area extends to the area of ​​several skirts above and below the first and second skirt regions.

[0089] By defining the target adhesion area as the shed region corresponding radially to the internal stress cone and the adjacent alternating regions of large and small sheds, the adhesion location of the simulated contaminant layer on the target insulation surface is made consistent with the location of common abnormal temperature rises in actual cable termination operation. This location selection is based on the following considerations: the internal stress cone location of the cable termination corresponds to a region with high external electric field strength, and the sheds corresponding to the stress cone location experience a high potential gradient under applied voltage; simultaneously, the groove structure of the alternating large and small sheds makes contaminant particles more prone to deposition and moisture absorption under natural conditions. Finite element simulation results show that this region has a spatial correspondence with the internal stress cone location of the termination, and the local potential gradient, shed structure, and contaminant adhesion state jointly affect surface leakage current and heat accumulation. The combined effect of these two factors makes this region a high-incidence location for abnormal temperature rises. Constructing a simulated contaminant layer in this region can reproduce the abnormal temperature rise phenomenon under actual operating conditions.

[0090] In another embodiment, the fouling control parameters include salt density parameters and ash density parameters; according to the preset fouling control parameters, controlling the fouling attachment device to apply a pre-prepared simulated fouling slurry to the target attachment area includes: according to the salt density parameters and ash density parameters, controlling the fouling attachment device to perform a coating operation on the target attachment area using the pre-prepared simulated fouling slurry to generate a cover layer of simulated fouling slurry on the target attachment area; the thickness of the cover layer is less than a preset thickness threshold; controlling the environmental conditioning device to perform a drying treatment on the cover layer; and returning to the step of controlling the fouling attachment device to perform a coating operation on the target attachment area according to the salt density parameters and ash density parameters, until a preset stop condition is met.

[0091] The salt density parameter refers to the target deposition amount of soluble salts in the simulated foul layer. The ash density parameter refers to the target deposition amount of insoluble particulate matter in the simulated foul layer. The combination of the salt density and ash density parameters is used to characterize the foulness level of the simulated foul layer. Different foulness levels correspond to different ranges of salt density and ash density parameter values.

[0092] The coating operation refers to the process by which the contaminant attachment equipment applies a predetermined amount of simulated contaminant slurry to the target attachment area. In each coating operation, the contaminant attachment equipment calculates the required amount of simulated contaminant slurry based on the target thickness parameters and the area of ​​the target attachment area, and applies the calculated amount to the target attachment area. The thickness of the coating layer generated in each coating operation is less than a preset thickness threshold. By limiting the thickness of each layer, the coating layer formed in each operation creates a thin structure on the target attachment area, avoiding localized accumulation or flow.

[0093] For the convenience of those skilled in the art, Figure 3 An example is provided showing a before-and-after comparison of a coating operation performed using simulated slurry.

[0094] The drying process refers to the state transition treatment performed on the coating layer by environmental conditioning equipment between two coating operations. The environmental parameters for the drying process are determined based on the intermediate drying requirements, employing temperature and humidity conditions that allow the dispersion medium to evaporate within a predetermined time. Through the drying process, after the coating layer formed in the previous coating operation has solidified, the next coating operation continues to apply simulated contaminant slurry to its surface, forming a layered structure of multiple thin-layer coatings and intermittent drying.

[0095] The preset stop condition refers to the conditions under which the control equipment determines whether the layer coating process has ended. These include the number of coating operations reaching a preset threshold, or the cumulative salt density value of the simulated contaminant layer on the target adhesion area reaching the value corresponding to both the salt density and ash density parameters. After each coating operation and drying process, the control equipment calculates the cumulative salt density and ash density values ​​of the simulated contaminant layer on the target adhesion area, comparing the cumulative salt density value with the salt density parameter and the cumulative ash density value with the ash density parameter. If both the cumulative salt density and ash density values ​​reach the values ​​corresponding to the salt density and ash density parameters, the control equipment determines that the preset stop condition has been met and ends the layer coating process.

[0096] A simulated dirt layer was constructed by applying multiple thin-layer coatings and alternating drying processes, resulting in a multi-layered structure on the target adhesion area. This multi-layered structure is similar to the deposition process of natural ash on the surface of a ceramic sleeve. Under natural conditions, the deposition of dirt particles on the ceramic sleeve surface is a long-term cumulative process. Each deposited particle layer transitions between dry and damp states, gradually forming a hierarchical adhesion structure characterized by local agglomeration, interconnected pores, and discontinuous coverage. The simulated dirt layer constructed using the multiple thin-layer coating method can reproduce this hierarchical adhesion and non-uniform distribution characteristics, providing a test object similar to the state of natural ash accumulation for subsequent evaluation of cleaning effectiveness.

[0097] In one embodiment, before controlling the fouling attachment device to perform the coating operation on the target attachment area, the control device also controls the fouling attachment device to perform a positioning operation on the target attachment area. The positioning operation refers to the fouling attachment device identifying the boundary position of the target attachment area on the sleeve surface using a position sensor, generating coating path planning data based on the boundary position, and controlling the coating tool to move on the target attachment area according to the coating path planning data. Through the positioning operation, the coating tool can apply the simulated fouling slurry to the target attachment area, preventing the simulated fouling slurry from exceeding the boundary of the target attachment area and being applied to the reference area, thus affecting the accuracy of subsequent temperature comparison tests.

[0098] In another embodiment, the target adhesion state includes one of a loose state, a wet state, and a solidified state; the environmental parameters include a target ambient temperature and a target ambient humidity; and the environmental adjustment device is controlled to adjust the environmental state of the target adhesion area according to the environmental parameters, including: adjusting the temperature around the target adhesion area to the target ambient temperature and adjusting the humidity around the target adhesion area to the target ambient humidity according to the target ambient temperature and the target ambient humidity.

[0099] The environmental parameters corresponding to the loose state are the temperature and humidity conditions that allow the dispersion medium to volatilize and the soluble salts to not crystallize significantly. Under these environmental parameters, the dirt layer is simulated to adhere to the target insulation surface in a dry and loose manner, which is used to simulate the dry state of wind-blown dust in natural ash accumulation after deposition without moisture.

[0100] Among them, the environmental parameters corresponding to the humid state are the temperature and humidity conditions that keep the simulated dirt layer at a predetermined moisture content. Under these environmental parameters, soluble salts dissolve to form a conductive liquid film, and the conductivity of the simulated dirt layer is higher than that of the loose state. This is used to simulate the damp state of natural dust accumulation in foggy, rainy, or high-humidity environments.

[0101] Among them, the environmental parameters corresponding to the consolidation state are the temperature and humidity conditions that cause soluble salts to crystallize and solidify. Under these environmental parameters, the simulated dirt layer forms a firm bond with the target insulation surface, which is difficult to remove by conventional cleaning methods. This is used to simulate the solidified dirt formed by natural dust accumulation under long-term moisture and drying cycles.

[0102] In practice, the control device obtains the corresponding environmental parameters from a preset correspondence based on the target adhesion state. This preset correspondence records the relationship between different target adhesion states and the target ambient temperature and humidity. The control device converts the obtained environmental parameters into environmental adjustment commands and sends these commands to the environmental adjustment equipment.

[0103] After receiving an environmental control command, the environmental control equipment controls the output power of the temperature control device based on the target ambient temperature and the output power of the humidity control device based on the target ambient humidity. The equipment uses temperature and humidity sensors to collect real-time temperature and humidity values ​​around the target attachment area. It compares these values ​​with the target ambient temperature and humidity, and adjusts the output power of the temperature and humidity control devices based on the comparison results to stabilize the temperature and humidity around the target attachment area at the target ambient temperature and humidity levels.

[0104] Once the environmental conditioning equipment reaches the target ambient temperature and humidity around the target adhesion area, it begins timing. After maintaining the target ambient temperature and humidity for the preset conditioning time, it returns an environmental conditioning completion signal to the control equipment. The preset conditioning time is determined based on the composition characteristics of the simulated slurry and the target adhesion state. For example, for a loose state, the preset conditioning time is 2 to 4 hours; for a wet state, the preset conditioning time is 4 to 8 hours; and for a consolidated state, the preset conditioning time is 12 to 24 hours.

[0105] By mapping the target adhesion state to specific environmental parameters, the adhesion state of the simulated contaminant layer can be selected and constructed according to experimental requirements. For experiments that require studying the cleaning equipment's ability to remove contaminants in different adhesion states, simulated contaminant layers in loose, wet, and solidified states can be constructed on the target insulation surface, respectively. Comparative experiments can then be used to evaluate the cleaning equipment's ability to remove contaminants in different adhesion states, including wet contaminants, solidified contaminants, locally thick dust accumulations, and contaminants in concealed areas of the umbrella skirt.

[0106] In another embodiment, the response data includes thermal distribution image data; based on the response data of the target insulation surface to voltage, the verification result of the simulated contamination layer is determined, including: controlling a temperature acquisition device to acquire a first temperature value of the target attachment area and a second temperature value of a reference area on the target insulation surface where no simulated contamination slurry has been applied; controlling a cleaning device to perform a cleaning operation on the target attachment area according to preset cleaning parameters, and controlling a temperature acquisition device to acquire a third temperature value of the target attachment area after cleaning; if the temperature difference between the first temperature value and the second temperature value reaches a first threshold, and the temperature difference between the first temperature value and the third temperature value reaches a second threshold, the verification result is determined to be that the simulated contamination layer has the ability to reproduce abnormal temperature rise phenomena.

[0107] Temperature acquisition equipment refers to devices used to collect the temperature distribution of a target insulating surface, including infrared thermal imagers and contact temperature sensors. Infrared thermal imagers acquire thermal distribution image data of the target insulating surface in a non-contact manner; each pixel in the thermal distribution image data corresponds to the temperature value at a specific location on the target insulating surface. Contact temperature sensors are installed at a specific location on the target insulating surface through adhesive bonding or embedding to collect continuous temperature data at that location.

[0108] The first temperature value refers to the temperature of the target attachment area under the applied voltage. The control device extracts the pixel temperature values ​​within the corresponding range of the target attachment area from the thermal distribution image data, and calculates the average or highest temperature value within the corresponding range of the target attachment area as the first temperature value.

[0109] The second temperature value refers to the temperature of the reference area under the applied voltage. The reference area is the region on the target insulation surface where no simulated contaminant paste has been applied, serving as a benchmark for comparing temperature changes in the target adhesion area. The location of the reference area is determined according to experimental requirements; it can be selected at a distance of several skirts axially from the target adhesion area, or at a distance of several angles circumferentially from the target adhesion area. The control equipment extracts the pixel temperature values ​​within the corresponding range of the reference area from the thermal distribution image data and calculates the average temperature value within that range as the second temperature value.

[0110] The cleaning parameters refer to the set of parameters used by the control equipment to perform cleaning operations on the target adhesion area. These parameters include cleaning medium parameters, cleaning pressure parameters, cleaning duration parameters, and cleaning distance parameters. Cleaning medium parameters include the type of cleaning medium, such as deionized water, compressed air, or dry ice particles. Cleaning pressure parameters include the pressure value when the cleaning medium is sprayed. Cleaning duration parameters include the duration for which the cleaning medium acts on the target adhesion area. Cleaning distance parameters include the distance between the nozzle of the cleaning equipment and the target insulating surface.

[0111] For the convenience of those skilled in the art, Figure 4 An exemplary schematic diagram comparing a cable termination before and after cleaning is provided, including thermal distribution images of the cable termination acquired by an infrared thermal imager before and after cleaning.

[0112] In practice, after acquiring the first and second temperature values, the control device generates a cleaning control command based on the cleaning parameters and sends the command to the cleaning equipment. Upon receiving the command, the cleaning equipment performs a cleaning operation on the target adhesion area. After the cleaning operation is completed, the control device instructs the temperature acquisition device to again acquire the temperature of the target adhesion area, obtaining a third temperature value. This third temperature value refers to the temperature of the target adhesion area after cleaning and under the influence of an applied voltage.

[0113] The first threshold is a value used to determine whether the temperature difference between the target adhesion area and the reference area reaches the abnormal temperature rise judgment standard. The first threshold is determined based on the rated voltage and reference temperature level of the cable termination, and can be set to, for example, 5 degrees Celsius, 8 degrees Celsius, or 10 degrees Celsius. The second threshold is a value used to determine whether the temperature difference before and after cleaning of the target adhesion area reaches the cleaning effectiveness judgment standard. The second threshold is determined based on the cleaning effect evaluation requirements, and can be set to, for example, 3 degrees Celsius, 5 degrees Celsius, or 7 degrees Celsius.

[0114] In practice, the control device calculates the temperature difference between the first and second temperature values ​​and compares this difference with a first threshold. If the temperature difference reaches the first threshold, it indicates that the target adhesion area has experienced a significant temperature rise relative to the reference area under the applied voltage, simulating the fouling layer inducing an abnormal temperature rise. The control device then calculates the temperature difference between the first and third temperature values ​​and compares this difference with a second threshold. If the temperature difference reaches the second threshold, it indicates that the cleaning operation has caused the temperature of the target adhesion area to drop, simulating the removal of the fouling layer after cleaning.

[0115] In practical applications, if the temperature difference between the first and second temperature values ​​reaches a first threshold, and the temperature difference between the first and third temperature values ​​reaches a second threshold, the control equipment determines that the verification result indicates the simulated fouling layer has the ability to reproduce abnormal temperature rise phenomena. Otherwise, the control equipment determines that the verification result indicates the simulated fouling layer does not have the ability to reproduce abnormal temperature rise phenomena, and it is necessary to adjust the fouling control parameters or environmental parameters and reconstruct the simulated fouling layer.

[0116] When determining the verification results, the control equipment also judges the stability of the simulated abnormal temperature rise phenomenon of the fouling layer based on the consistency of the temperature difference between the first and second temperature values ​​in multiple repeated tests. The control equipment performs multiple repeated tests under the same voltage parameters, the same fouling control parameters, and the same environmental parameters, recording the temperature difference between the first and second temperature values ​​in each repeated test. If the standard deviation of the temperature difference in multiple repeated tests is lower than a preset standard deviation threshold, and the average value of the temperature difference in multiple repeated tests reaches the first threshold, the control equipment determines that the simulated fouling layer has a stable and repeatable ability to reproduce abnormal temperature rises. If the standard deviation of the temperature difference in multiple repeated tests exceeds the preset standard deviation threshold, or the average value of the temperature difference in multiple repeated tests does not reach the first threshold, the control equipment determines that the simulated fouling layer does not have a stable and repeatable ability to reproduce abnormal temperature rises, and it is necessary to adjust the fouling control parameters or environmental parameters to reconstruct the simulated fouling layer. By introducing a stability judgment, the randomness of drawing verification conclusions based on single test results is avoided, improving the reliability of the verification results.

[0117] After the coating operation is completed by the dirt adhesion device and the environmental conditioning operation is completed by the environmental conditioning device, the control equipment also controls the image acquisition device to acquire surface images of the target adhesion area and obtains evaluation data of the simulated dirt layer through image recognition methods. The evaluation data includes dirt coverage data, adhesion uniformity data, local thickness data, wet / dry state data, and adhesion strength data. Dirt coverage data is obtained by identifying the coverage boundary of the simulated dirt layer in the surface image, reflecting the actual coverage area of ​​the simulated dirt layer on the target adhesion area. Adhesion uniformity data is obtained by analyzing the standard deviation of the grayscale distribution of the simulated dirt layer in the surface image; the smaller the standard deviation, the higher the adhesion uniformity. Local thickness data is obtained by comparing the grayscale values ​​of the simulated dirt layer in the surface image with the pre-stored grayscale-thickness correspondence. Wet / dry state data is obtained by analyzing the color characteristics of the simulated dirt layer in the surface image. Adhesion strength data is obtained by comparing the grayscale changes in the images after the coating operation and after the environmental conditioning operation; the smaller the grayscale change, the less the simulated dirt layer detached during the environmental conditioning process, and the greater the adhesion strength. The control equipment compares the evaluation data with the corresponding target value range. If the evaluation data is within the target value range, it determines that the construction of the simulated pollution layer meets the requirements; otherwise, it determines that the construction of the simulated pollution layer does not meet the requirements, and the pollution control parameters or environmental parameters need to be adjusted and the process repeated.

[0118] The control equipment collects thermal distribution images of the target adhesion area before and after the cleaning operation, obtaining pre-cleaning and post-cleaning thermal distribution images. The control equipment compares these images to identify changes in temperature distribution on the target adhesion area before and after cleaning, and evaluates the removal effectiveness of different cleaning methods for abnormally heated contaminants based on these changes. If the temperature of the target adhesion area in the post-cleaning thermal distribution image returns to the reference area temperature level, the cleaning method is deemed capable of removing the abnormally heated contaminant layer; if the temperature does not return to the reference area temperature level, the cleaning method is deemed incapable of removing the abnormally heated contaminant layer. The comparison of infrared temperature images before and after cleaning provides data support for optimizing different cleaning methods.

[0119] Through the above verification process, the effectiveness of the simulated fouling layer can be evaluated using objective temperature data. The verification results show that the simulated fouling layer has the ability to reproduce abnormal temperature rise phenomena, indicating that it can be used for subsequent cleaning process comparison tests and cleaning effect evaluation tests. The verification results also show that the simulated fouling layer does not have the ability to reproduce abnormal temperature rise phenomena, indicating that the simulated fouling layer differs from the abnormal temperature rise phenomena induced by natural dust accumulation under actual operating conditions, and therefore needs to be reconstructed.

[0120] For the convenience of those skilled in the art, Figure 5 An exemplary schematic diagram of abnormal temperature rise location is provided, comprising two parts: an infrared abnormal temperature rise diagram on the left and a temperature simulation diagram of the corresponding location of the stress cone on the right. The infrared abnormal temperature rise diagram is a heat distribution image acquired by an infrared thermal imager under actual operating conditions of the cable termination head, reflecting the temperature distribution at various locations on the outer surface of the cable termination head bushing. The temperature simulation diagram of the corresponding location of the stress cone is a temperature distribution diagram obtained by performing electric field simulation calculations based on the structural model of the cable termination head and the insulation material parameters using a finite element simulation device, reflecting the temperature distribution characteristics of the internal stress cone location of the cable termination head and its corresponding location on the outer surface of the bushing under rated voltage.

[0121] In another embodiment, after determining that the verification result shows that the simulated dirt layer has the ability to reproduce the abnormal temperature rise phenomenon, the method further includes: determining the cleaning effect quantification value corresponding to the cleaning parameter based on the temperature difference between the first temperature value and the third temperature value; the greater the temperature difference, the higher the cleaning effect quantification value; and generating a parameter evaluation report for the cleaning parameter based on the cleaning effect quantification value corresponding to the cleaning parameter.

[0122] The cleaning effect quantification value refers to the numerical value used to quantitatively evaluate the cleaning effect corresponding to the cleaning parameters. The control equipment pre-stores the correspondence between temperature differences and the cleaning effect quantification values. This correspondence can be implemented using a linear function, a piecewise function, or a lookup table. For example, in a linear function implementation, the cleaning effect quantification value is directly proportional to the temperature difference; for instance, for every 1 degree Celsius increase in temperature difference, the cleaning effect quantification value increases by a predetermined value. In a piecewise function implementation, the temperature difference is divided into several intervals, each interval corresponding to a range of cleaning effect quantification values.

[0123] The parameter evaluation report is an evaluation document generated by the control equipment for the cleaning parameters used in this test. It includes a list of cleaning parameters, temperature acquisition results, quantified values ​​of cleaning effect, quantified value ratings, and recommendations for cleaning parameter optimization. The cleaning parameter list records the cleaning medium parameters, cleaning pressure parameters, cleaning duration parameters, and cleaning distance parameters used in this test. The temperature acquisition results record the first, second, and third temperature values, as well as the temperature difference calculation results. The quantified cleaning effect values ​​record the values ​​calculated based on the temperature differences. The quantified value rating classifies the cleaning parameters into different levels based on the quantified cleaning effect values, such as excellent, good, qualified, and unqualified. The recommendations for cleaning parameter optimization propose directions for adjusting the cleaning parameters based on the quantified value rating results.

[0124] The control equipment also performs multiple sets of comparative tests based on test comparison requests. These tests include comparisons of different contamination levels, different target adhesion states, and different target adhesion areas. For comparisons of different contamination levels, the control equipment uses multiple combinations of salt density and ash density parameters to construct simulated contamination layers on different target insulation surfaces, and performs verification and cleaning operations on each target insulation surface using the same voltage and cleaning parameters. For comparisons of different target adhesion states, the control equipment uses the same contamination control parameters to construct simulated contamination layers in loose, wet, and solidified states, and performs verification and cleaning operations on each target insulation surface using the same voltage and cleaning parameters. For comparisons of different target adhesion areas, the control equipment selects different skirt locations on the target insulation surface to construct simulated contamination layers, including the umbrella root location, the middle of the umbrella skirt, alternating large and small umbrella skirt locations, and the lower middle umbrella skirt location, and performs verification and cleaning operations on each target adhesion area using the same voltage and cleaning parameters. The control equipment generates a comparative analysis report based on the quantitative values ​​of cleaning effects from multiple sets of comparative tests. This report reflects the differences in the cleaning equipment's ability to remove simulated dirt layers of varying dirt levels, adhesion states, and skirt locations. Through multiple sets of comparative tests, repeated comparisons are achieved between different dirt levels, different wet / dry conditions, and different skirt locations, providing data support for process optimization and on-site operation and maintenance strategy development for the cleaning equipment.

[0125] In practice, after generating a parameter evaluation report, the control equipment can output the report via a display device. By performing the above tests on multiple sets of cleaning parameters, the control equipment can generate multiple parameter evaluation reports. By comparing and analyzing these reports, the target cleaning parameters suitable for cleaning the surface contaminants of this type of cable termination can be determined.

[0126] By generating parameter evaluation reports, the optimization process of cleaning parameters becomes data-driven, avoiding uncertainties arising from reliance on experience-based judgments. Simultaneously, these reports serve as a basis for standardized cleaning process documentation, guiding the selection of cleaning parameters during on-site operation and maintenance.

[0127] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0128] Based on the same inventive concept, this application also provides a simulated contaminant adhesion device for implementing the simulated contaminant adhesion method for the surface cleaning test of cable terminal porcelain bushings described above. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more embodiments of the simulated contaminant adhesion device for the surface cleaning test of cable terminal porcelain bushings provided below can be found in the limitations of the simulated contaminant adhesion method for the surface cleaning test of cable terminal porcelain bushings described above, and will not be repeated here.

[0129] In one exemplary embodiment, such as Figure 6 As shown, a device for simulating dirt adhesion for cleaning tests on the surface of ceramic sleeves of cable terminations is provided, comprising:

[0130] The acquisition module 610 is used to acquire the pre-processing parameters corresponding to the cable terminal head, and control the cleaning equipment to perform a cleaning operation on the sleeve surface of the cable terminal head according to the pre-processing parameters, and use the cleaned sleeve surface as the target insulation surface.

[0131] The attachment module 620 is used to determine the target attachment area in the target insulation surface according to the insulation structure characteristics of the cable terminal head, and to control the dirt attachment device to apply the pre-prepared simulated dirt slurry to the target attachment area according to the preset dirt control parameters.

[0132] The adjustment module 630 is used to acquire environmental parameters corresponding to the target adhesion state, and control the environmental adjustment device to adjust the environmental state of the target adhesion area according to the environmental parameters, so that the simulated dirt slurry can build a simulated dirt layer on the target insulation surface that satisfies the target adhesion state.

[0133] The verification module 640 is used to control a voltage generating device to apply voltage to the cable terminal head according to preset voltage parameters, and to determine the verification result of the simulated contamination layer based on the response data of the target insulation surface to the voltage.

[0134] In one embodiment, the insulation structure features include the spatial position features of the internal stress cone of the cable termination head; the attachment module 620 is specifically used to determine the target attachment area in the target insulation surface based on the first skirt area on the target insulation surface that corresponds to the internal stress cone in the radial direction, and the second skirt area adjacent to the first skirt area; wherein, the second skirt area includes areas with skirts of different sizes alternately distributed.

[0135] In one embodiment, the fouling control parameters include a salt density parameter and an ash density parameter; the adhesion module 620 is specifically configured to control the fouling adhesion device to perform a coating operation on the target adhesion area using the pre-prepared simulated fouling slurry based on the salt density parameter and the ash density parameter, so as to generate a cover layer of the simulated fouling slurry on the target adhesion area; the thickness of the cover layer is less than a preset thickness threshold; control the environmental conditioning device to perform a drying treatment on the cover layer; and return to the step of controlling the fouling adhesion device to perform a coating operation on the target adhesion area based on the salt density parameter and the ash density parameter, until a preset stop condition is met.

[0136] In one embodiment, the target adhesion state includes one of a loose state, a wet state, and a solidified state; the environmental parameters include a target ambient temperature and a target ambient humidity; the adjustment module 630 is specifically used to control the environmental adjustment device to adjust the temperature around the target adhesion area to the target ambient temperature and the humidity around the target adhesion area to the target ambient humidity according to the target ambient temperature and the target ambient humidity.

[0137] In one embodiment, the response data includes thermal distribution image data; the verification module 640 is specifically used to control the temperature acquisition device to acquire a first temperature value of the target attachment area and a second temperature value of a reference area on the target insulation surface where the simulated contaminant slurry has not been applied; according to preset cleaning parameters, the cleaning device is controlled to perform a cleaning operation on the target attachment area, and the temperature acquisition device is controlled to acquire a third temperature value of the target attachment area after cleaning; when the temperature difference between the first temperature value and the second temperature value reaches a first threshold, and the temperature difference between the first temperature value and the third temperature value reaches a second threshold, the verification result is determined to be that the simulated contaminant layer has the ability to reproduce abnormal temperature rise phenomena.

[0138] In one embodiment, the verification module 640 is specifically used to determine the cleaning effect quantification value corresponding to the cleaning parameter based on the temperature difference between the first temperature value and the third temperature value; the greater the temperature difference, the higher the cleaning effect quantification value; and to generate a parameter evaluation report for the cleaning parameter based on the cleaning effect quantification value corresponding to the cleaning parameter.

[0139] The modules in the simulated dirt adhesion device used for cleaning the surface of the ceramic sleeve of cable terminations described above can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the corresponding operations of each module.

[0140] In one exemplary embodiment, a computer device is provided, which may be the control device described above, and its internal structure diagram may be as follows. Figure 7 As shown, this computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs in the non-volatile storage media. The database stores control parameters. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communicating with external terminals via a network. When executed by the processor, the computer program implements a simulated dirt adhesion method for cleaning the surface of ceramic sleeves on cable termination heads.

[0141] Those skilled in the art will understand that Figure 7 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0142] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0143] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps in the above method embodiments.

[0144] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0145] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0146] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0147] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0148] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for simulating dirt adhesion in a cleaning test of the porcelain bushing surface of a cable termination, characterized in that, The method includes: Obtain the pre-processing parameters corresponding to the cable terminal head, and control the cleaning equipment to perform a cleaning operation on the sleeve surface of the cable terminal head according to the pre-processing parameters, and use the cleaned sleeve surface as the target insulation surface; Based on the insulation structure characteristics of the cable terminal head, the target attachment area in the target insulation surface is determined, and based on the preset contamination control parameters, the contamination attachment device is controlled to apply the pre-prepared simulated contamination slurry to the target attachment area. Obtain the environmental parameters corresponding to the target adhesion state, and control the environmental conditioning device to adjust the environmental state of the target adhesion area according to the environmental parameters, so that the simulated dirt slurry can build a simulated dirt layer on the target insulation surface that satisfies the target adhesion state; According to preset voltage parameters, the voltage generating device is controlled to apply voltage to the cable terminal head, and the verification result of the simulated contamination layer is determined based on the response data of the target insulation surface to the voltage.

2. The method according to claim 1, characterized in that, The insulation structure features include the spatial location features of the stress cone inside the cable termination; determining the target attachment area in the target insulation surface based on the insulation structure features of the cable termination includes: The target attachment area in the target insulation surface is determined based on the first umbrella skirt area on the target insulation surface that corresponds to the internal stress cone in the radial direction, and the second umbrella skirt area adjacent to the first umbrella skirt area. The second umbrella skirt area includes a region where umbrella skirts of different sizes are alternately distributed.

3. The method according to claim 1, characterized in that, The fouling control parameters include salt density parameters and ash density parameters; the step of controlling the fouling adhesion device to apply pre-prepared simulated fouling slurry to the target adhesion area according to the preset fouling control parameters includes: Based on the salt density parameter and the ash density parameter, the dirt adhesion device is controlled to perform a coating operation on the target adhesion area using the pre-prepared simulated dirt slurry, so as to generate a cover layer of the simulated dirt slurry on the target adhesion area; the thickness of the cover layer is less than a preset thickness threshold. The process involves controlling the environmental conditioning device to perform a drying process on the covering layer, and then returning to the step of controlling the dirt adhesion device to perform a coating operation on the target adhesion area based on the salt density parameter and the ash density parameter, until a preset stop condition is met.

4. The method according to claim 1, characterized in that, The target adhesion state includes one of a loose state, a wet state, and a consolidated state; the environmental parameters include the target ambient temperature and the target ambient humidity; the step of controlling the environmental conditioning device to adjust the environmental state of the target adhesion area according to the environmental parameters includes: Based on the target ambient temperature and the target ambient humidity, the environmental conditioning device is controlled to adjust the temperature around the target attachment area to the target ambient temperature and the humidity around the target attachment area to the target ambient humidity.

5. The method according to claim 1, characterized in that, The response data includes thermal distribution image data; determining the verification result of the simulated contamination layer based on the response data of the target insulating surface to the voltage includes: The temperature acquisition device is controlled to acquire a first temperature value of the target adhesion area and a second temperature value of a reference area on the target insulation surface where the simulated contaminant slurry has not been applied. According to preset cleaning parameters, the cleaning equipment is controlled to perform a cleaning operation on the target adhesion area, and the temperature acquisition device is controlled to acquire a third temperature value of the target adhesion area after cleaning. If the temperature difference between the first temperature value and the second temperature value reaches a first threshold, and the temperature difference between the first temperature value and the third temperature value reaches a second threshold, the verification result is determined to be that the simulated fouling layer has the ability to reproduce the abnormal temperature rise phenomenon.

6. The method according to claim 5, characterized in that, After determining that the verification result shows the simulated fouling layer has the ability to reproduce the abnormal temperature rise phenomenon, the method further includes: The cleaning effect quantification value corresponding to the cleaning parameter is determined based on the temperature difference between the first temperature value and the third temperature value; the greater the temperature difference, the higher the cleaning effect quantification value. Based on the quantitative values ​​of the cleaning effect corresponding to the cleaning parameters, a parameter evaluation report is generated for the cleaning parameters.

7. A device for simulating dirt adhesion in a cleaning test of the porcelain bushing surface of a cable termination, characterized in that, The device includes: The acquisition module is used to acquire the pre-processing parameters corresponding to the cable terminal head, and control the cleaning equipment to perform a cleaning operation on the sleeve surface of the cable terminal head according to the pre-processing parameters, and use the cleaned sleeve surface as the target insulation surface. An attachment module is used to determine the target attachment area in the target insulation surface based on the insulation structure characteristics of the cable terminal head, and to control the dirt attachment device to apply pre-prepared simulated dirt slurry to the target attachment area according to preset dirt control parameters. An adjustment module is used to acquire environmental parameters corresponding to the target adhesion state, and control an environmental adjustment device to adjust the environmental state of the target adhesion area according to the environmental parameters, so that the simulated dirt slurry can build a simulated dirt layer on the target insulation surface that satisfies the target adhesion state. The verification module is used to control a voltage generating device to apply voltage to the cable terminal head according to preset voltage parameters, and to determine the verification result of the simulated contamination layer based on the response data of the target insulation surface to the voltage.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

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