A method and device for dynamically adjusting a power transmission line ampacity rating, an electronic device, and a storage medium

Abstract

The application discloses a power transmission line load flow rating dynamic adjustment method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring the load flow rating of a power transmission line, actual temperature, humidity, wind speed, sunshine intensity, real-time load flow of the power transmission line, temperature data, service life parameters, historical inspection data and damage index of the power transmission line; generating indexes of each environmental factor according to the difference between the actual environmental factors and ideal values; generating a load flow adjustment factor according to the indexes of each environmental factor and the load flow rating of the power transmission line; generating an aging factor of the power transmission line according to the real-time load flow of the power transmission line, historical surface temperature data, service life parameters, historical inspection data and damage index of the power transmission line; and adjusting the load flow rating of the power transmission line according to the load flow adjustment factor and the aging factor. Through the implementation of the application, the load flow rating of the power transmission line can be dynamically adjusted, and the safety of the power transmission line is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power transmission line detection, and in particular to a dynamic adjustment method and device for a power transmission line current-carrying capacity rating, an electronic device, and a storage medium. BACKGROUND

[0002] With the continuous growth of modern power demand, the safety and reliability of power transmission lines, as the key link of power transmission, are of great importance. In order to ensure that the power transmission line can work reliably for a long time, a current-carrying capacity rating at the time of factory shipment is usually set for it to limit the maximum carrying current of the line under ideal environmental conditions. However, in actual operation, this static rating cannot fully adapt to various complex and variable external factors in the actual operating environment.

[0003] Specifically, the actual environment in which the power transmission line is located, such as temperature, humidity, wind speed, and sunshine intensity, directly affects the heat dissipation performance and operation safety of the line. When the external environment is worse than the ideal state or the line itself is aging, continuing to operate according to the rated current-carrying capacity at the time of factory shipment may cause line overload, increase the risk of failure, and even cause power outage accidents in severe cases. Therefore, dynamically adjusting the current-carrying capacity rating of the power transmission line to adapt to real-time environmental changes has become one of the key means to ensure the safe operation of the power transmission line. SUMMARY

[0004] The embodiments of the present application provide a dynamic adjustment method and device for a power transmission line current-carrying capacity rating, an electronic device, and a storage medium. By implementing the present application, the current-carrying capacity rating of the power transmission line can be dynamically adjusted, and the safety of the power transmission line can be improved.

[0005] An embodiment of the present application provides a dynamic adjustment method for a power transmission line current-carrying capacity rating, comprising: obtaining a current-carrying capacity rating set at the time of factory shipment of the power transmission line; obtaining temperature, humidity, wind speed, and sunshine intensity in the actual environment; obtaining real-time current-carrying capacity of the power transmission line, historical surface temperature data of the power transmission line, service life parameters of the power transmission line, historical inspection data of the power transmission line, and damage index of the surface of the power transmission line. The damage index includes crack index, bubble index, and corrosion index.

[0006] According to the difference between the temperature, humidity, wind speed, and sunshine intensity in the actual environment and the respective ideal values, an environmental temperature index, an environmental humidity index, an environmental wind speed index, and an environmental sunshine intensity index are generated.

[0007] According to the environmental temperature index, the environmental humidity index, the environmental wind speed index, the environmental sunshine intensity index, and the current-carrying capacity rating set at the time of factory shipment of the power transmission line, a current-carrying capacity adjustment factor is calculated and generated.

[0008] According to the real-time current-carrying capacity of the power transmission line, historical surface temperature data of the power transmission line, service life parameters of the power transmission line, historical inspection data of the power transmission line, and damage indexes of the surface of the power transmission line, an aging factor of the power transmission line is calculated and generated.

[0009] According to the current-carrying capacity adjustment factor and the aging factor, the current-carrying capacity rating of the power transmission line is adjusted.

[0010] Further, the generation of the environment temperature index, the environment humidity index, the environment wind speed index and the environment sunshine intensity index according to the difference between the temperature, humidity, wind speed and sunshine intensity in the actual environment and the respective ideal values comprises:

[0011] The difference between the temperature in the actual environment and the ideal value of the environment temperature is calculated to obtain a first difference value.

[0012] According to the first difference value and a preset first weight value, the environment temperature index is calculated and generated.

[0013] The difference between the humidity in the actual environment and the ideal value of the environment humidity is calculated to obtain a second difference value.

[0014] According to the second difference value and a preset second weight value, the environment humidity index is calculated and generated.

[0015] The difference between the wind speed in the actual environment and the ideal value of the environment wind speed is calculated to obtain a third difference value.

[0016] According to the third difference value and a preset third weight value, the environment wind speed index is calculated and generated.

[0017] The difference between the sunshine intensity in the actual environment and the ideal value of the environment sunshine intensity is calculated to obtain a fourth difference value.

[0018] According to the fourth difference value and a preset fourth weight value, the environment sunshine intensity index is calculated and generated.

[0019] Further, the current-carrying capacity adjustment factor is calculated by the following formula:

[0020]

[0021] wherein, is the current-carrying capacity adjustment factor; is the current-carrying capacity rating set by the power transmission line when it is manufactured; is the environment temperature index; is the environment wind speed index; is the environment sunshine intensity index; is the environment humidity index.

[0022] Further, the aging factor of the power transmission line is calculated by the following formula:

[0023]

[0024] wherein, is an aging factor of the power transmission line; is an average value of the surface temperature of the power transmission line; is a temperature in an actual environment; is a real-time current-carrying capacity of the power transmission line; is a used age of the power transmission line; is an estimated value of the life of the power transmission line; is a total number of failures of the power transmission line; is a total number of inspections of the power transmission line; is a crack index; is a bubble index; is a corrosion index; the average value of the surface temperature of the power transmission line is calculated by the following formula:

[0025]

[0026] wherein, is a total number of temperature detections; is a temperature of the surface of the power transmission line detected for the time.

[0027] Further, the damage index of the surface of the power transmission line is determined by the following way:

[0028] A surface image of the power transmission line is acquired.

[0029] The surface image is filtered to obtain a processed image.

[0030] A contour of the power transmission line is extracted from the processed image by applying a threshold technique to generate an image of the power transmission line.

[0031] Whether a bubble region, a crack region and a corrosion region exist in the image of the power transmission line is identified.

[0032] If the bubble region exists, the bubble index is set to a first index value; if the bubble region does not exist, the bubble index is set to 0.

[0033] If the crack region exists, the crack index is set to a second index value; if the crack region does not exist, the crack index is set to 0.

[0034] If the corrosion region exists, the corrosion index is set to a third index value; if the corrosion region does not exist, the corrosion index is set to 0.

[0035] wherein, the first index value is less than the second index value, and the second index value is less than the third index value.

[0036] Based on the above method embodiment, the application provides a device embodiment.

[0037] An embodiment of the application provides a dynamic adjustment device for a power transmission line ampacity rating, comprising a data acquisition module, an environmental index calculation module, an ampacity adjustment factor calculation module, a power transmission line aging factor calculation module and an ampacity rating adjustment module.

[0038] The data acquisition module is configured to acquire the ampacity rating set for the power transmission line when the power transmission line is manufactured; acquire temperature, humidity, wind speed and sunshine intensity in an actual environment; acquire real-time ampacity of the power transmission line, historical surface temperature data of the power transmission line, service life parameters of the power transmission line, historical inspection data of the power transmission line and a damage index of a surface of the power transmission line; and the damage index comprises a crack index, a bubble index and a corrosion index.

[0039] The environmental index calculation module is configured to generate an environmental temperature index, an environmental humidity index, an environmental wind speed index and an environmental sunshine intensity index according to differences between the temperature, humidity, wind speed and sunshine intensity in the actual environment and respective ideal values.

[0040] The ampacity adjustment factor calculation module is configured to generate an ampacity adjustment factor according to the environmental temperature index, the environmental humidity index, the environmental wind speed index, the environmental sunshine intensity index and the ampacity rating set for the power transmission line when the power transmission line is manufactured.

[0041] The power transmission line aging factor calculation module is configured to generate an aging factor of the power transmission line according to the real-time ampacity of the power transmission line, the historical surface temperature data of the power transmission line, the service life parameters of the power transmission line, the historical inspection data of the power transmission line and the damage index of the surface of the power transmission line.

[0042] The ampacity rating adjustment module is configured to adjust the ampacity rating of the power transmission line according to the ampacity adjustment factor and the aging factor.

[0043] Further, the data acquisition module comprises an ampacity rating storage unit, a temperature detection unit, a humidity detection unit, a wind speed detection unit, a sunshine intensity detection unit, a real-time ampacity detection unit, an infrared temperature measurement unit, a time counting unit, a maintenance counting unit and a visual detection unit.

[0044] The ampacity rating storage unit is configured to acquire and store the ampacity rating set for the power transmission line when the power transmission line is manufactured.

[0045] The temperature detection unit is configured to detect temperature in an actual environment.

[0046] The humidity detection unit is configured to detect humidity in the actual environment.

[0047] The wind speed detection unit is configured to detect wind speed in the actual environment.

[0048] The sunshine intensity detection unit is configured to detect sunshine intensity in the actual environment.

[0049] The real-time current carrying capacity detection unit is configured to detect real-time current carrying capacity of the power transmission line.

[0050] The infrared temperature measurement unit is configured to detect surface temperature of the power transmission line and store the total number of temperature detection.

[0051] The time counting unit is configured to count the used life of the power transmission line and the estimated value of the life of the power transmission line.

[0052] The maintenance counting unit is configured to count the total number of faults of the power transmission line and the total number of inspections of the power transmission line.

[0053] The visual detection unit is configured to detect damage index of the surface of the power transmission line.

[0054] Further, the current carrying capacity adjustment factor calculation module calculates the current carrying capacity adjustment factor through the following formula:

[0055]

[0056] wherein, is the current carrying capacity adjustment factor; is the rated current carrying capacity set when the power transmission line is manufactured; is the environmental temperature index; is the environmental wind speed index; is the environmental sunshine intensity index; is the environmental humidity index.

[0057] On the basis of the above-mentioned method embodiment, the present application correspondingly provides an electronic device embodiment.

[0058] An embodiment of the present application provides an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the processor can implement the dynamic adjustment method of the rated current carrying capacity of the power transmission line in any one of the above-mentioned method embodiments when executing the computer program.

[0059] On the basis of the above-mentioned method embodiment, the present application correspondingly provides a storage medium embodiment.

[0060] An embodiment of the present application provides a storage medium, which stores a computer program, and the computer program is executed by a processor to implement the power transmission line load flow rating dynamic adjustment method in any of the above method embodiments.

[0061] Compared with the prior art, the present application has the following beneficial effects:

[0062] Embodiments of the present application provide a power transmission line load flow rating dynamic adjustment method, device, electronic equipment and storage medium. The method generates an environmental temperature index, an environmental temperature index, an environmental wind speed index and an environmental solar radiation intensity index according to the actual environmental factors and the difference between the preset ideal environmental factors; then, according to the index corresponding to each environmental factor and the load flow rating set when the power transmission line is shipped, a load flow adjustment factor is calculated and generated; in addition, according to the real-time load flow of the power transmission line, the historical surface temperature data of the power transmission line, the service life parameters of the power transmission line, the historical inspection data of the power transmission line and the damage index of the surface of the power transmission line, an aging factor of the power transmission line is calculated and generated. Finally, the load flow rating of the power transmission line is adjusted according to the load flow adjustment factor and the aging factor.

[0063] The present application obtains actual environmental factor data and historical operation data of the power transmission line, respectively considers the influence of environmental factors and the aging degree of the power transmission line itself on the load flow rating of the power transmission line, calculates and generates a load flow adjustment factor according to the difference between the actual environmental factors and the ideal environmental factors, calculates and generates an aging factor according to the historical operation data of the power transmission line, and dynamically adjusts the load flow rating of the power transmission line through the load flow adjustment factor and the aging factor to adapt to real-time environmental changes, thereby ensuring the safe operation of the power transmission line. BRIEF DESCRIPTION OF DRAWINGS

[0064] Figure 1 is a flowchart of the power transmission line load flow rating dynamic adjustment method provided by an embodiment of the present application.

[0065] Figure 2 is a structural schematic diagram of the power transmission line load flow rating dynamic adjustment device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0067] As Figure 1As shown, an embodiment of the present application provides a dynamic adjustment method for the current-carrying capacity rating of a power transmission line, comprising at least the following steps:

[0068] Step S1, obtaining the current-carrying capacity rating set at the factory of the power transmission line; obtaining the temperature, humidity, wind speed and solar intensity in the actual environment; obtaining the real-time current-carrying capacity of the power transmission line, the historical surface temperature data of the power transmission line, the service life parameters of the power transmission line, the historical inspection data of the power transmission line, and the damage index of the surface of the power transmission line.

[0069] Specifically, the current-carrying capacity rating set at the factory of the power transmission line is obtained. The current-carrying capacity rating at the factory is the maximum carrying current value set by the manufacturer under ideal environmental conditions, considering the power transmission line materials, design parameters and related electrical standards. Under ideal conditions, the power transmission line can be operated within this current-carrying capacity range for a long time without overloading. However, the rating at the factory may not meet the requirements of the power transmission line in complex and variable actual operating environments, so it is necessary to dynamically adjust the current-carrying capacity rating during operation.

[0070] The temperature, humidity, wind speed and solar intensity in the actual environment are obtained. These environmental factors directly affect the heat dissipation capacity and operating performance of the power transmission line. The increase of temperature will reduce the heat dissipation efficiency of the power transmission line, increase the conductor temperature, and thus affect its safe operation. Humidity and wind speed will affect the heat dissipation and environmental stability of the line, especially in high humidity or low wind speed conditions, the heat dissipation capacity of the line may be greatly weakened. In addition, the solar intensity will also affect the temperature of the line surface, increasing the thermal load of the line. Therefore, obtaining and monitoring these environmental factors in real time is an important basis for dynamic adjustment of current-carrying capacity.

[0071] The real-time current-carrying capacity of the power transmission line is obtained. Real-time current-carrying capacity refers to the actual current value carried by the power transmission line at a specific time. According to the change of real-time current-carrying capacity, the load condition of the line can be evaluated in real time to determine whether the line is within the safe load range. When the actual current-carrying capacity approaches or exceeds the rating, it may indicate that the line is in a high load or even overload state, and the operating parameters need to be adjusted according to the actual environment and the health status of the line.

[0072] The historical surface temperature data of the power transmission line is obtained. By recording the temperature data of the surface of the power transmission line for a long time, the operating conditions of the power transmission line under different environmental conditions can be analyzed. The temperature of the surface of the power transmission line directly reflects the heating condition and heat dissipation capacity of the line. When the temperature continuously exceeds the safe range, the power transmission line may have signs of aging or damage.

[0073] Obtain the service life parameters of the power transmission line. The service life parameters mainly include the years of service of the power transmission line and the estimated value of the service life of the power transmission line. These parameters help to more accurately determine whether the line is approaching its designed life and whether maintenance or replacement is needed.

[0074] Obtain the historical inspection data of the power transmission line. The historical inspection data mainly includes the total number of faults of the power transmission line and the total number of inspections of the power transmission line. The accumulation of historical inspection data can help to find potential problems and trends of the line and provide support for the overall assessment of the line state.

[0075] Obtain the damage index of the surface of the power transmission line. The damage index is a comprehensive indicator reflecting the degree of surface damage of the power transmission line, usually including the conditions of surface corrosion, wear, cracks and other external damage. By calculating the damage index, the damage degree of the line can be quantified, further evaluating its health condition. When the damage index reaches a certain threshold, it indicates that the external damage of the line has threatened its normal operation, and maintenance or replacement measures need to be taken. In a preferred embodiment, the damage index of the surface of the power transmission line is determined by:

[0076] Obtain the surface image of the power transmission line.

[0077] Filter the surface image to obtain a processed image.

[0078] Extract the contour of the power transmission line from the processed image by applying thresholding techniques to generate an image of the power transmission line.

[0079] Identify whether there are bubble areas, crack areas and corrosion areas in the image of the power transmission line.

[0080] If there is a bubble area, set the bubble index to a first index value; if there is no bubble area, set the bubble index to 0.

[0081] If there is a crack area, set the crack index to a second index value; if there is no crack area, set the crack index to 0.

[0082] If there is a corrosion area, set the corrosion index to a third index value; if there is no corrosion area, set the corrosion index to 0.

[0083] Wherein, the first index value is less than the second index value, and the second index value is less than the third index value.

[0084] Specifically, the surface image of the transmission line can be obtained by unmanned aerial vehicle inspection. Then, the initial image is processed by Gaussian filtering to remove noise, and the processed image is obtained. By applying threshold technology, the contour of the transmission line is extracted from the processed image to generate the image of the transmission line.

[0085] Specifically, by setting a reasonable threshold, the pixels in the image are divided into two categories: one is above the threshold (representing the transmission line itself), and the other is below the threshold (representing the background). This process converts the image into a binary image, making the target object and the background more distinguishable. In the binary image, the contour of the transmission line can be further extracted by edge detection algorithm. Contour extraction is to identify the external boundary of the target object by detecting the edges with significant intensity changes in the binary image. In this process, the threshold technology effectively filters out background noise and retains key pixels related to the transmission line, thereby generating a clear contour of the transmission line. Finally, through these processing steps, the image of the transmission line can be generated.

[0086] In identifying whether there are bubble areas, crack areas and corrosion areas in the image of the transmission line, first, the image processing techniques such as edge detection and morphological operation are used to analyze the detailed features in the image of the transmission line. Bubble areas usually appear as local bumps in the form of circles or ellipses, crack areas are long and discontinuous lines, and corrosion areas are irregular dark areas. Through brightness, contrast and texture analysis, these defect areas can be accurately identified, providing a basis for the state assessment and maintenance of the transmission line, avoiding potential failures and prolonging the service life of the line.

[0087] If a bubble area is detected in the image of the transmission line, the bubble index is set to a first index value, which can be 1. If there is no bubble area, the bubble index is set to 0. The presence of bubbles indicates that the line has local bumps or material defects, which may affect the conductive performance of the line.

[0088] If a crack area is detected in the image, the crack index is set to a second index value, which can be 2. If there is no crack area, the crack index is set to 0. Crack areas usually indicate that the line material has been affected by mechanical stress or environmental stress, which may lead to further structural damage.

[0089] If there is a corrosion area, the corrosion index is set to a third index value, which can be 3. If there is no corrosion area, the corrosion index is set to 0. Corrosion areas reflect that the transmission line has been eroded by the external environment for a long time, which may lead to a decrease in the durability and safety of the line.

[0090] It should be noted that, based on historical experience, corrosion on the surface of transmission lines is generally more severe than cracks and bubbles. Therefore, according to the degree of harm these three factors pose to transmission lines, the third index value is set to 3, the second index value to 2, and the first index value to 1.

[0091] Step S2: Based on the differences between the actual temperature, humidity, wind speed, and solar radiation intensity in the environment and their respective ideal values, generate environmental temperature index, environmental humidity index, environmental wind speed index, and environmental solar radiation intensity index.

[0092] In an optional embodiment, generating environmental temperature, environmental humidity, environmental wind speed, and environmental solar intensity indices based on the differences between the actual environmental temperature, humidity, wind speed, and solar radiation intensity and their corresponding ideal values ​​includes:

[0093] The difference between the actual temperature and the ideal ambient temperature is calculated to obtain the first difference value.

[0094] An ambient temperature index is calculated and generated based on the first difference and the preset first weight value.

[0095] The difference between the actual humidity in the environment and the ideal humidity value is calculated to obtain the second difference value.

[0096] An environmental humidity index is calculated based on the second difference and the preset second weight value.

[0097] The difference between the actual wind speed and the ideal wind speed in the environment is calculated to obtain the third difference value.

[0098] The environmental wind speed index is calculated and generated based on the third difference and the preset third weight value.

[0099] The difference between the actual solar intensity in the environment and the ideal value of the solar intensity in the environment is calculated to obtain the fourth difference value.

[0100] The environmental solar radiation intensity index is calculated and generated based on the fourth difference and the preset fourth weight value.

[0101] Specifically, the ambient temperature, ambient humidity, ambient wind speed, and ambient solar radiation intensity are calculated using the following formulas:

[0102]

[0103] in, An indicator of ambient temperature; An indicator of environmental humidity; Environmental wind speed is used as an indicator; An indicator of ambient solar radiation intensity; This is the first weight value, which can be set to 0.5 here; This is the second weight value, which can be set to 0.05 here; This is the third weight value, which can be set to 0.2 here; This is the third weight value, which can be set to 0.1 here; It is a rounding function; This represents the ideal ambient temperature. The actual temperature in the environment; This represents the ideal ambient humidity level. This refers to the humidity in the actual environment. This refers to the wind speed in the actual environment. Ideal ambient wind speed; This represents the actual solar radiation intensity in the environment. This represents the ideal value for ambient solar radiation intensity. The first, second, third, and fourth weighted values ​​can be flexibly selected based on actual conditions.

[0104] When calculating the current carrying capacity adjustment factor, four factors in the environment are considered: temperature, wind speed, solar radiation intensity, and humidity. Temperature is the most important influencing factor, as it directly affects the heat dissipation capacity of the transmission line. Therefore, the first weight value is assigned the largest value. The other weight values ​​are set according to the degree of influence of each factor on the heat dissipation capacity of the transmission line.

[0105] When the actual ambient temperature is greater than the ideal ambient temperature, the conductor's heat dissipation capacity decreases, causing its temperature to rise. This corresponds to a reduction in the rated current-carrying capacity, and vice versa. Similarly, when the actual ambient wind speed is greater than the ideal wind speed, the conductor's heat dissipation is better, allowing for a corresponding increase in the rated current-carrying capacity, and vice versa. When the actual ambient solar radiation intensity is greater than the ideal solar radiation intensity, it increases the conductor's temperature, thus requiring a reduction in the rated current-carrying capacity, and vice versa. When the actual ambient humidity is greater than the ideal humidity, the moisture in the air enhances the conductor's surface heat dissipation, thereby reducing the conductor's temperature, which in turn allows for a corresponding increase in the rated current-carrying capacity, and vice versa. The units for both the ideal and actual ambient temperatures are degrees Celsius. The units for both the actual and ideal ambient wind speeds are meters per second. The units for both the ideal and actual ambient solar radiation intensity are watts per square meter. These units are merely examples; those skilled in the art can adjust the units according to actual needs when implementing this solution.

[0106] Step S3: Calculate and generate the current carrying capacity adjustment factor based on the ambient temperature index, ambient humidity index, ambient wind speed index, ambient solar radiation intensity index, and the rated current carrying capacity set at the time of manufacture of the transmission line.

[0107] In a preferred embodiment, the current carrying capacity adjustment factor is calculated using the following formula:

[0108]

[0109] in, This is the current carrying capacity adjustment factor; The rated current carrying capacity set at the factory for the transmission line;

[0110] The purpose of calculating the current-carrying capacity adjustment factor is to dynamically adjust the rated current-carrying capacity set at the factory, taking into account actual environmental conditions. This ensures the safety and reliability of transmission lines operating in complex environments.

[0111] Step S4: Calculate and generate the aging factor of the transmission line based on the real-time current carrying capacity, historical surface temperature data, service life parameters, historical inspection data, and surface damage index of the transmission line.

[0112] The calculated aging factor for transmission lines is used to assess the degree of aging of the lines and provides a reference for subsequent adjustments to the rated current-carrying capacity. Furthermore, this factor provides a scientific basis for the rational scheduling of transmission line maintenance and replacement, extending equipment lifespan and ensuring the stable operation of the transmission system.

[0113] In a preferred embodiment, the aging factor of the transmission line is calculated using the following formula:

[0114]

[0115] in, Aging factors of power transmission lines; This represents the average surface temperature of the transmission line. This refers to the real-time current carrying capacity of the transmission line. The number of years the transmission line has been in use; Estimated lifespan of transmission lines; This represents the total number of faults in the transmission line. This represents the total number of inspections of the transmission lines. Crack index; Bubble index; The corrosion index is used; the average surface temperature of the transmission line is calculated using the following formula:

[0116]

[0117] in, This represents the total number of temperature measurements. For the first The temperature of the transmission line surface was measured in this test.

[0118] Specifically, the units for the years of service of transmission lines and the estimated lifespan of transmission lines are both years. Any period less than one year of service is counted as one year. The estimated lifespan of transmission lines can be obtained from the manufacturer's information. The total number of transmission line inspections is the total number of inspections actually conducted by staff. The total number of faults is calculated based on the total number of inspections. The total number of temperature measurements should be greater than or equal to 10. The above units are merely examples; those skilled in the art can set different units according to actual needs when implementing this solution.

[0119] Step S5: Adjust the rated current carrying capacity of the transmission line according to the current carrying capacity adjustment factor and the aging factor.

[0120] The rated current-carrying capacity of transmission lines is comprehensively adjusted based on current-carrying capacity adjustment factors and aging factors. This adjustment process aims to ensure the safe operation of transmission lines under different environmental conditions and aging states, avoiding overload or potential faults. Specifically, when environmental conditions are poor or the line is severely aged, the rated current-carrying capacity should be reduced to avoid line overload; conversely, when the environment is favorable and the line is relatively new, the rated current-carrying capacity can be appropriately increased. This adjustment mechanism not only improves the operational safety of transmission lines but also extends the service life of equipment, ensuring the reliability and stability of the power system.

[0121] In a preferred embodiment, the adjusted transmission line current carrying capacity rating is calculated as follows:

[0122] The current carrying capacity adjustment factor and the aging factor are normalized to generate normalized current carrying capacity adjustment factor and normalized aging factor. The normalization operation limits the values ​​of the current carrying capacity adjustment factor and the aging factor to between 0 and 1.

[0123] The first product result is obtained by multiplying the normalized current carrying capacity adjustment factor and the normalized aging factor.

[0124] The first product result is calculated and compared with the rated current carrying capacity set at the time of manufacture of the transmission line to obtain the second product result.

[0125] The result of the second product is used as the adjusted rated current carrying capacity of the transmission line, so that the rated current carrying capacity of the transmission line can be updated subsequently based on the adjusted rated current carrying capacity of the transmission line.

[0126] Based on the above method embodiments, the present invention provides corresponding apparatus embodiments.

[0127] like Figure 2As shown, an embodiment of the present invention provides a dynamic adjustment device for the rated current carrying capacity of a transmission line, comprising: a data acquisition module, an environmental index calculation module, a current carrying capacity adjustment factor calculation module, a transmission line aging factor calculation module, and a current carrying capacity rated value adjustment module;

[0128] The data acquisition module is used to acquire the rated current-carrying capacity of the transmission line set at the time of manufacture; acquire the temperature, humidity, wind speed, and solar radiation intensity in the actual environment; acquire the real-time current-carrying capacity of the transmission line, historical surface temperature data of the transmission line, service life parameters of the transmission line, historical inspection data of the transmission line, and damage index of the transmission line surface. The damage index includes crack index, bubble index, and corrosion index.

[0129] The environmental index calculation module is used to generate environmental temperature index, environmental humidity index, environmental wind speed index, and environmental solar intensity index based on the difference between the actual temperature, humidity, wind speed, and solar intensity in the environment and their respective ideal values.

[0130] The current carrying capacity adjustment factor calculation module is used to calculate and generate the current carrying capacity adjustment factor based on the ambient temperature index, ambient humidity index, ambient wind speed index, ambient solar radiation intensity index, and the rated current carrying capacity set at the time of manufacture of the transmission line.

[0131] The power transmission line aging factor calculation module is used to calculate and generate the aging factor of the power transmission line based on the real-time current carrying capacity, historical surface temperature data, service life parameters, historical inspection data, and surface damage index of the power transmission line.

[0132] The rated current carrying capacity adjustment module is used to adjust the rated current carrying capacity of the transmission line according to the current carrying capacity adjustment factor and the aging factor.

[0133] In a preferred embodiment, the data acquisition module includes: a current carrying capacity rated value storage unit, a temperature detection unit, a humidity detection unit, a wind speed detection unit, a solar radiation intensity detection unit, a real-time current carrying capacity detection unit, an infrared temperature measurement unit, a time statistics unit, a maintenance statistics unit, and a visual inspection unit.

[0134] The rated current carrying capacity storage unit is used to acquire and store the rated current carrying capacity set at the time of manufacture of the transmission line.

[0135] The temperature detection unit is used to detect the temperature in the actual environment.

[0136] The humidity detection unit is used to detect the humidity in the actual environment.

[0137] The wind speed detection unit is used to detect wind speed in the actual environment.

[0138] The solar radiation intensity detection unit is used to detect the solar radiation intensity in the actual environment.

[0139] The real-time current carrying capacity detection unit is used to detect the real-time current carrying capacity of the transmission line.

[0140] The infrared temperature measurement unit is used to detect the surface temperature of the transmission line and store the total number of temperature detections.

[0141] The time statistics unit is used to calculate the years of service of the transmission line and the estimated lifespan of the transmission line.

[0142] The maintenance statistics unit is used to count the total number of transmission line faults and the total number of transmission line inspections.

[0143] The visual inspection unit is used to detect the damage index of the transmission line surface.

[0144] Optionally, the solar radiation intensity detection unit includes a photovoltaic radiation meter detector, a signal processor, and a microprocessor;

[0145] The photovoltaic radiometer detector is used to convert radiation energy into electrical signals.

[0146] The signal processor is used to amplify the electrical signals processed by the photovoltaic radiometer detector and convert the electrical signals into digital signals.

[0147] The microprocessor is used to convert digital signals into solar radiation intensity and obtain the actual value of ambient solar radiation intensity.

[0148] Preferably, the current carrying capacity adjustment factor calculation module calculates the current carrying capacity adjustment factor using the following formula:

[0149]

[0150] in, This is the current carrying capacity adjustment factor; The rated current carrying capacity set at the factory for the transmission line; An indicator of ambient temperature; For environmental wind speed indicators; An indicator of ambient solar radiation intensity; This is an indicator of environmental humidity.

[0151] It should be noted that the embodiments of the apparatus described above correspond to the embodiments of the present invention described above, and can implement any of the methods described above in the present invention. Furthermore, the embodiments of the apparatus described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Additionally, in the accompanying drawings of the apparatus embodiments provided by the present invention, the connection relationship between modules indicates that they have a communication connection, which can be specifically implemented as one or more communication buses or signal lines. Those skilled in the art can understand and implement this without creative effort.

[0152] Based on the above-described method embodiments of the present invention, a corresponding embodiment of an electronic device is provided.

[0153] An embodiment of the present invention provides an electronic device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the dynamic adjustment method for the rated current carrying capacity of transmission lines according to any one of the present invention, or, when the processor executes the computer program, it implements the functions of each module in the above-described device embodiments.

[0154] For example, the computer program may be divided into one or more modules, which are stored in the memory and executed by the processor to complete the present invention. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, which describe the execution process of the computer program in the terminal device.

[0155] The terminal device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0156] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the terminal device, connecting all parts of the terminal device via various interfaces and lines.

[0157] The memory can be used to store the computer programs and / or modules. The processor implements various functions of the terminal device by running or executing the computer programs and / or modules stored in the memory and by calling data stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, applications required for at least one function, etc.; the data storage area may store data created based on the use of the mobile phone, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital card (SD card), flash card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0158] Based on the above method embodiments, the present invention provides corresponding storage medium embodiments;

[0159] Another embodiment of the present invention provides a storage medium including a stored computer program, wherein, when the computer program is running, it controls the device where the storage medium is located to execute the dynamic adjustment method for the rated current carrying capacity of any of the transmission lines described above.

[0160] The aforementioned storage medium is a computer-readable storage medium. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or certain intermediate forms. The computer-readable medium can include any entity or device capable of carrying the computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0161] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0162] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for dynamically adjusting the rated current-carrying capacity of a transmission line, characterized in that, The method comprises the following steps: obtaining the current carrying capacity rating set by the power transmission line when it is manufactured; obtaining the temperature, humidity, wind speed and solar intensity in the actual environment; obtaining the real-time current carrying capacity of the power transmission line, the historical surface temperature data of the power transmission line, the service life parameters of the power transmission line, the historical inspection data of the power transmission line, and the damage index of the surface of the power transmission line; wherein the damage index comprises a crack index, a bubble index and a corrosion index; generating an environmental temperature index, an environmental humidity index, an environmental wind speed index and an environmental solar intensity index according to the difference between the temperature, humidity, wind speed and solar intensity in the actual environment and the respective ideal values; generating a current carrying capacity adjustment factor according to the environmental temperature index, the environmental humidity index, the environmental wind speed index, the environmental solar intensity index and the current carrying capacity rating set by the power transmission line when it is manufactured; generating an aging factor of the power transmission line according to the real-time current carrying capacity of the power transmission line, the historical surface temperature data of the power transmission line, the service life parameters of the power transmission line, the historical inspection data of the power transmission line and the damage index of the surface of the power transmission line; adjusting the current carrying capacity rating of the power transmission line according to the current carrying capacity adjustment factor and the aging factor; calculating the current carrying capacity adjustment factor by the following formula: wherein, is a current-carrying capacity adjustment factor; is a current-carrying capacity rating set at the time of manufacture of the power transmission line; is an ambient temperature index; is an ambient wind speed index; is an ambient solar radiation intensity index; is an ambient humidity index; calculating the aging factor of the power transmission line by the following formula: wherein, is an aging factor of the power transmission line; is an average value of a surface temperature of the power transmission line; is a temperature in an actual environment; is a real-time current-carrying capacity of the power transmission line; is a used period of the power transmission line; is an estimated value of a life of the power transmission line; is a total number of failures of the power transmission line; is a total number of inspections of the power transmission line; is a crack index; is a bubble index; is a corrosion index; the average value of the surface temperature of the power transmission line is calculated by the following equation: wherein, is the total number of temperature detections; is the temperature of the power line surface detected at the nth detection.

2. The method of dynamically adjusting ampacity ratings of a power transmission line of claim 1, wherein, The generating of the environmental temperature index, the environmental humidity index, the environmental wind speed index and the environmental solar intensity index according to the difference between the temperature, humidity, wind speed and solar intensity in the actual environment and the respective ideal values comprises: calculating the difference between the temperature in the actual environment and the environmental temperature ideal value to obtain a first difference value; generating an environmental temperature index according to the first difference value and a preset first weight value; calculating the difference between the humidity in the actual environment and the environmental humidity ideal value to obtain a second difference value; generating an environmental humidity index according to the second difference value and a preset second weight value; calculating the difference between the wind speed in the actual environment and the environmental wind speed ideal value to obtain a third difference value; generating an environmental wind speed index according to the third difference value and a preset third weight value; calculating the difference between the solar intensity in the actual environment and the environmental solar intensity ideal value to obtain a fourth difference value; generating an environmental solar intensity index according to the fourth difference value and a preset fourth weight value.

3. The method of dynamically adjusting ampacity ratings of a power transmission line of claim 2, wherein, The damage index of the surface of the power transmission line is determined by the following method: obtaining the surface image of the power transmission line; performing filtering processing on the surface image to obtain a processed image; extracting the contour of the power transmission line from the processed image by applying threshold technology to generate an image of the power transmission line; identifying whether there are bubble areas, crack areas and corrosion areas in the image of the power transmission line; if there are bubble areas, setting the bubble index to a first index value; if there are no bubble areas, setting the bubble index to 0; if there are crack areas, setting the crack index to a second index value; if there are no crack areas, setting the crack index to 0; if there are corrosion areas, setting the corrosion index to a third index value; if there are no corrosion areas, setting the corrosion index to 0; Wherein, the first index value is less than the second index value, and the second index value is less than the third index value.

4. A device for dynamically adjusting the ampacity rating of a power transmission line, characterized by, Comprise: Data acquisition module, environmental index calculation module, current-carrying capacity adjustment factor calculation module, power transmission line aging factor calculation module and current-carrying capacity rating adjustment module; The data acquisition module is used for acquiring the current-carrying capacity rating set when the power transmission line is manufactured;Acquire temperature, humidity, wind speed and solar intensity in the actual environment;Acquire real-time current-carrying capacity of the power transmission line, historical surface temperature data of the power transmission line, service life parameters of the power transmission line, historical inspection data of the power transmission line, and damage index of the surface of the power transmission line;Wherein, the damage index includes crack index, bubble index and corrosion index; The environmental index calculation module is used for generating environmental temperature index, environmental humidity index, environmental wind speed index and environmental solar intensity index according to the difference between temperature, humidity, wind speed and solar intensity in the actual environment and the respective ideal value; The current-carrying capacity adjustment factor calculation module is used for calculating and generating current-carrying capacity adjustment factor according to environmental temperature index, environmental humidity index, environmental wind speed index, environmental solar intensity index and current-carrying capacity rating set when the power transmission line is manufactured; The power transmission line aging factor calculation module is used for calculating and generating aging factor of the power transmission line according to real-time current-carrying capacity of the power transmission line, historical surface temperature data of the power transmission line, service life parameters of the power transmission line, historical inspection data of the power transmission line and damage index of the surface of the power transmission line; The current-carrying capacity rating adjustment module is used for adjusting current-carrying capacity rating of the power transmission line according to the current-carrying capacity adjustment factor and the aging factor; The current-carrying capacity adjustment factor is calculated by the following formula: wherein, is a current-carrying capacity adjustment factor; is a current-carrying capacity rating set at the time of manufacture of the power transmission line; is an ambient temperature index; is an ambient wind speed index; is an ambient solar radiation intensity index; is an ambient humidity index; The aging factor of the power transmission line is calculated by the following formula: wherein, is an aging factor of the power transmission line; is an average value of a surface temperature of the power transmission line; is a temperature in an actual environment; is a real-time ampacity of the power transmission line; is a used period of the power transmission line; is an estimated value of a life span of the power transmission line; is a total number of failures of the power transmission line; is a total number of inspections of the power transmission line; is a crack index; is a bubble index; is a corrosion index; the average value of the surface temperature of the power transmission line is calculated by the following equation: wherein, is the total number of temperature detections; is the temperature of the surface of the power line detected at the nth detection.

5. The apparatus for dynamic adjustment of ampacity rating of a power transmission line of claim 4, wherein, The environmental index calculation module comprises environmental temperature index calculation unit, environmental humidity index calculation unit, environmental wind speed index calculation unit and environmental solar intensity index calculation unit; The environmental temperature index calculation unit is used for calculating the difference between temperature in the actual environment and environmental temperature ideal value to obtain first difference value;According to the first difference value and the preset first weight value, environmental temperature index is calculated and generated; The environmental humidity index calculation unit is used for calculating the difference between humidity in the actual environment and environmental humidity ideal value to obtain second difference value; According to the second difference value and the preset second weight value, environmental humidity index is calculated and generated; The environmental wind speed index calculation unit is used for calculating the difference between wind speed in the actual environment and environmental wind speed ideal value to obtain third difference value;According to the third difference value and the preset third weight value, environmental wind speed index is calculated and generated; The environmental solar intensity index calculation unit is used for calculating the difference between solar intensity in the actual environment and environmental solar intensity ideal value to obtain fourth difference value; According to the fourth difference value and the preset fourth weight value, environmental solar intensity index is calculated and generated.

6. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that: The processor executes the computer program to realize the dynamic adjustment method of the current-carrying capacity rating of the power transmission line in any one of claims 1 to 3.

7. A storage medium having stored thereon a computer program, characterized in that: The computer program, when executed by a processor, can implement the method for dynamically adjusting the power transmission line ampacity rating according to any one of claims 1 to 3.

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