Dynamic adjustment method and device for rated value of current-carrying capacity of power transmission line, electronic equipment and storage medium

Abstract

The invention discloses a dynamic adjustment method and device for a current-carrying capacity rated value of a power transmission line, electronic equipment and a storage medium, and the method comprises the steps: obtaining the current-carrying capacity rated value of the power transmission line, the actual temperature, humidity, wind speed and sunlight intensity, and the real-time current-carrying capacity of the power transmission line; temperature data, service life parameters, historical inspection data and damage indexes of the power transmission line; according to the difference between the actual environmental factor and the ideal value, generating an index of each environmental factor; generating a current-carrying capacity regulation factor according to the index of each environmental factor and the current-carrying capacity rated value of the power transmission line; 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, the service life parameter, the historical inspection data and the damage index of the power transmission line; and adjusting the rated value of the current-carrying capacity of the power transmission line according to the current-carrying capacity adjusting factor and the aging factor. The current-carrying capacity rated value 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 invention relates to the technical field of power transmission line detection, and in particular to a method, device, electronic equipment and storage medium for dynamically adjusting the rated current carrying capacity of a power transmission line. Background Art

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

[0003] Specifically, the actual environment in which the transmission line is located, such as temperature, humidity, wind speed, and sunshine intensity, directly affects the heat dissipation performance and operational 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 factory may cause the line to be overloaded, increase the risk of failure, and even cause power outages in serious cases. Therefore, dynamically adjusting the rated current carrying capacity of the transmission line to adapt to real-time environmental changes has become one of the key means to ensure the safe operation of the transmission line. Summary of the invention

[0004] The embodiment of the present invention provides a method, device, electronic device and storage medium for dynamically adjusting the rated current carrying capacity of a power transmission line. By implementing the present invention, the rated current carrying capacity of the power transmission line can be dynamically adjusted, thereby improving the safety of the power transmission line.

[0005] An embodiment of the present invention provides a method for dynamically adjusting the rated current of a transmission line, including: obtaining the rated current of the transmission line set at the factory; obtaining the temperature, humidity, wind speed and sunshine intensity in the actual environment; obtaining the real-time current of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line, and the damage index of the surface of the transmission line. The damage index includes a crack index, a bubble index and a corrosion index.

[0006] An environmental temperature index, an environmental humidity index, an environmental wind speed index and an environmental sunlight intensity index are generated according to the gaps between the temperature, humidity, wind speed and sunlight intensity in the actual environment and their corresponding ideal values.

[0007] The current carrying capacity adjustment factor is calculated and generated based on the ambient temperature index, ambient humidity index, ambient wind speed index, ambient sunlight intensity index and the current carrying capacity rating set when the transmission line leaves the factory.

[0008] The aging factor of the transmission line is calculated based on the real-time current carrying capacity of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line and the damage index of the surface of the transmission line.

[0009] The current carrying capacity rating of the transmission line is adjusted according to the current carrying capacity adjustment factor and the aging factor.

[0010] Further, the generating of the environment temperature index, environment humidity index, environment wind speed index and environment sunshine intensity index according to the gap between the temperature, humidity, wind speed and sunshine intensity in the actual environment and their corresponding ideal values ​​includes:

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

[0012] An ambient temperature index is calculated and generated according to the first difference and a preset first weight value.

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

[0014] The environmental humidity index is calculated and generated according to the second difference and a preset second weight value.

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

[0016] The ambient wind speed index is calculated and generated according to the third difference and a preset third weight value.

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

[0018] The ambient sunlight intensity index is calculated and generated according to the fourth difference and a preset fourth weight value.

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

[0020]

[0021] Among them, CR is the current carrying capacity adjustment factor; zl e It is the rated current carrying capacity set when the transmission line leaves the factory; T is the ambient temperature index; V is the ambient wind speed index; F is the ambient sunlight intensity index; and W is the ambient humidity index.

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

[0023]

[0024] Where Ag is the aging factor of the transmission line; temp tl is the average surface temperature of the transmission line; temp s is the temperature in the actual environment; zl s is the real-time current carrying capacity of the transmission line; year sy The number of years the transmission line has been in use; year cs is the estimated value of the transmission line life; wx is the total number of transmission line failures; jc is the total number of transmission line inspections; lw is the crack index; qp is the bubble index; fs is the corrosion index; the average surface temperature of the transmission line is calculated by the following formula:

[0025]

[0026] Where M is the total number of temperature detections; wd m is the surface temperature of the transmission line detected for the mth time.

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

[0028] Acquire a surface image of the power line.

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

[0030] The outline of the power line is extracted from the processed image by applying the thresholding technique to generate an image of the power line.

[0031] Identify whether there are bubble areas, crack areas and corrosion areas in the image of the transmission line.

[0032] If there is a bubble area, the bubble index is set to the first index value; if there is no bubble area, the bubble index is set to 0.

[0033] If there is a crack region, the crack index is set to a second index value; if there is no crack region, the crack index is set to 0.

[0034] If there is a corrosion area, the corrosion index is set to a third index value; if there is no corrosion area, the corrosion index is set to 0.

[0035] The first index value is smaller than the second index value, and the second index value is smaller than the third index value.

[0036] Based on the above method embodiment, the present invention provides a corresponding device embodiment.

[0037] An embodiment of the present invention provides a device for dynamically adjusting the current carrying capacity rating of a transmission line, comprising: a data acquisition module, an environmental indicator calculation module, a current carrying capacity adjustment factor calculation module, a transmission line aging factor calculation module and a current carrying capacity rating adjustment module.

[0038] The data acquisition module is used to obtain the current carrying capacity rating set when the transmission line leaves the factory; obtain the temperature, humidity, wind speed and sunshine intensity in the actual environment; obtain the real-time current carrying capacity of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line, and the damage index of the surface of the transmission line; wherein the damage index includes a crack index, a bubble index and a corrosion index.

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

[0040] The current carrying capacity adjustment factor calculation module is used to calculate and generate the current carrying capacity adjustment factor according to the ambient temperature index, ambient humidity index, ambient wind speed index, ambient sunshine intensity index and the current carrying capacity rated value set when the transmission line leaves the factory.

[0041] The transmission line aging factor calculation module is used to calculate and generate the transmission line aging factor based on the real-time current carrying capacity of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line and the damage index of the surface of the transmission line.

[0042] The current carrying capacity rating adjustment module is used to adjust the current carrying capacity rating of the power transmission line according to the current carrying capacity adjustment factor and the aging factor.

[0043] Furthermore, the data acquisition module includes: a current carrying capacity rating storage unit, a temperature detection unit, a humidity detection unit, a wind speed detection unit, a sunlight 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 detection unit.

[0044] The current carrying capacity rating storage unit is used to obtain and store the current carrying capacity rating set when the power transmission line leaves the factory.

[0045] The temperature detection unit is used to detect the temperature in the actual environment.

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

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

[0048] The sunlight intensity detection unit is used to detect the sunlight intensity in the actual environment.

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

[0050] The infrared temperature measuring unit is used to detect the surface temperature of the transmission line and store the total number of temperature detections.

[0051] The time statistics unit is used to count the service life of the transmission line and the estimated value of the life of the transmission line.

[0052] The maintenance statistics unit is used to count the total number of transmission line faults and the total number of transmission line inspections.

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

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

[0055]

[0056] Among them, CR is the current carrying capacity adjustment factor; zl e It is the rated current carrying capacity set when the transmission line leaves the factory; T is the ambient temperature index; V is the ambient wind speed index; F is the ambient sunlight intensity index; and W is the ambient humidity index.

[0057] Based on the above method embodiment, the present invention provides a corresponding electronic device embodiment.

[0058] An embodiment of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method for dynamically adjusting the current carrying capacity rating of a transmission line as described in any one of the above method embodiments can be implemented.

[0059] Based on the above method item embodiments, the present invention provides a corresponding storage medium item embodiment.

[0060] An embodiment of the present invention provides a storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for dynamically adjusting the current carrying capacity rating of a transmission line as described in any one of the above method embodiments can be implemented.

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

[0062] The embodiment of the present invention provides a method, device, electronic device and storage medium for dynamically adjusting the rated current carrying capacity of a transmission line. The method generates an ambient temperature index, an ambient temperature index, an ambient wind speed index and an ambient sunlight intensity index according to actual environmental factors by calculating the gap between the actual environmental factors and the preset ideal values ​​of the environmental factors; then calculates and generates a current carrying capacity adjustment factor according to the index corresponding to each environmental factor and the rated current carrying capacity set when the transmission line leaves the factory; in addition, calculates and generates an aging factor of the transmission line according to the real-time current carrying capacity of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line and the damage index of the surface of the transmission line. Finally, the rated current carrying capacity of the transmission line is adjusted according to the current carrying capacity adjustment factor and the aging factor.

[0063] The present invention obtains actual environmental factor data and historical operation data of the transmission line, considers the influence of environmental factors and the aging degree of the transmission line itself on the rated current of the transmission line respectively, calculates and generates the current-carrying capacity adjustment factor according to the difference between the actual environmental factors and the ideal environmental factors; calculates and generates the aging factor according to the historical operation data of the transmission line; dynamically adjusts the rated current of the transmission line through the current-carrying capacity adjustment factor and the aging factor to adapt to real-time environmental changes, thereby ensuring the safe operation of the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is a flow chart of a method for dynamically adjusting the rated current carrying capacity of a power transmission line provided in one embodiment of the present invention.

[0065] Figure 2 It is a schematic diagram of the structure of a device for dynamically adjusting the rated current carrying capacity of a power transmission line provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0067] like Figure 1 As shown, an embodiment of the present invention provides a method for dynamically adjusting the rated current carrying capacity of a transmission line, comprising at least the following steps:

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

[0069] Specifically, obtain the current carrying capacity rating set at the factory for the transmission line. The current carrying capacity rating at the factory is the maximum current carrying value set by the manufacturer under ideal environmental conditions, taking into account the transmission line materials, design parameters and relevant electrical standards. Under ideal conditions, the transmission line can operate for a long time within this current carrying capacity range without overloading. However, the factory rating may not meet the requirements of the transmission line in the complex and changeable actual operating environment, so it is necessary to dynamically adjust the current carrying capacity rating during operation.

[0070] Obtain the temperature, humidity, wind speed and sunshine intensity in the actual environment. These environmental factors directly affect the heat dissipation capacity and operating performance of the transmission line. The increase in temperature will reduce the heat dissipation efficiency of the 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 intensity of sunshine will also affect the temperature of the line surface and increase the heat load of the line. Therefore, obtaining and real-time monitoring of these environmental factors is an important basis for dynamic adjustment of the current carrying capacity.

[0071] Get the real-time current carrying capacity of the transmission line. The real-time current carrying capacity refers to the current value actually carried by the transmission line at a specific moment. According to the change of the real-time current carrying capacity, the load 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 is close to or exceeds the rated value, it may indicate that the line is under high load or even overload, and the operating parameters need to be adjusted according to the actual environment and the health status of the line.

[0072] Obtain historical surface temperature data of transmission lines. By recording the temperature data of the transmission line surface for a long time, the operation status of the transmission line under different environmental conditions can be analyzed. The surface temperature of the transmission line directly reflects the heating status and heat dissipation capacity of the line. When the temperature is continuously higher than the safe range, the transmission line may have shown signs of aging or damage.

[0073] Obtain the service life parameters of the transmission line. The service life parameters mainly include the number of years the transmission line has been in use and the estimated value of the transmission line life. These parameters help to more accurately determine whether the line is approaching its design life and whether maintenance or replacement is required.

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

[0075] Obtain the damage index of the surface of the transmission line. The damage index is a comprehensive indicator that reflects the degree of damage to the surface of the transmission line, usually including external damage such as surface corrosion, wear, and cracks. By calculating the damage index, the degree of damage to the line can be quantified and its health can be further evaluated. When the damage index reaches a certain threshold, it indicates that the external damage to the line has posed a threat to its normal operation and maintenance or replacement measures need to be taken. In a preferred embodiment, the damage index of the surface of the transmission line is determined by the following method:

[0076] Acquire a surface image of the power line.

[0077] The surface image is filtered to obtain a processed image.

[0078] The outline of the power line is extracted from the processed image by applying the thresholding technique to generate an image of the power line.

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

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

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

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

[0083] The first index value is smaller than the second index value, and the second index value is smaller than the third index value.

[0084] Specifically, the surface image of the transmission line can be obtained by drone inspection and photography; then the surface image is subjected to Gaussian filtering to remove the noise of the initial image to obtain a processed image. By applying threshold technology, the outline of the transmission line is extracted from the processed image to generate an image of the transmission line.

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

[0086] When identifying whether there are bubble areas, crack areas and corrosion areas in the image of the transmission line, the detailed features in the image of the transmission line are first analyzed through image processing techniques such as edge detection and morphological operations. The bubble area usually appears as a circular or elliptical local bulge, the crack area is a thin and discontinuous line, and the corrosion area appears as an irregular dark area. Through brightness, contrast and texture analysis, these defective areas can be accurately identified, providing a basis for the status assessment and maintenance of the transmission line, avoiding potential failures and extending 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 the first index value, which can be 1; if there is no bubble area, the bubble index is set to 0. The appearance of bubbles indicates that there are local bulges or material defects in the line, which may affect the conductive performance of the line.

[0088] If a crack region is detected in the image, the crack index is set to the second index value, where the second index value can be 2; if there is no crack region, the crack index is set to 0. The crack region usually indicates that the circuit material is affected by mechanical stress or environmental stress, which may cause further structural damage.

[0089] If there is a corrosion area, the corrosion index is set to the third index value, where the third index value can be 3; if there is no corrosion area, the corrosion index is set to 0. The corrosion area reflects that the transmission line has been corroded 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 according to historical experience, the severity of corrosion on the surface of transmission lines is usually higher than that of cracks and bubbles. Therefore, according to the degree of damage to the transmission lines, the third index value is set to 3, the second index value is set to 2, and the first index value is set to 1.

[0091] Step S2: Generate an environmental temperature index, an environmental humidity index, an environmental wind speed index and an environmental sunshine intensity index according to the gaps between the temperature, humidity, wind speed and sunshine intensity in the actual environment and their corresponding ideal values.

[0092] In an optional embodiment, the generating of the environment temperature index, environment humidity index, environment wind speed index and environment sunshine intensity index according to the gap between the temperature, humidity, wind speed and sunshine intensity in the actual environment and their corresponding ideal values ​​includes:

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

[0094] An ambient temperature index is calculated and generated according to the first difference and a preset first weight value.

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

[0096] The environmental humidity index is calculated and generated according to the second difference and a preset second weight value.

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

[0098] The ambient wind speed index is calculated and generated according to the third difference and a preset third weight value.

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

[0100] The ambient sunlight intensity index is calculated and generated according to the fourth difference and a preset fourth weight value.

[0101] Specifically, the ambient temperature index, ambient humidity index, ambient wind speed index, and ambient sunlight intensity index are calculated using the following formula:

[0102] T=1+α1·ceil(temp r -temp s )

[0103] W=1+α2·(sd r -sd s )

[0104] V=1+α3·(wv s -uv r )

[0105] F=1+α4(fs s -fs r )

[0106] Wherein, T is the ambient temperature index; W is the ambient humidity index; V is the ambient wind speed index; F is the ambient sunshine intensity index; α1 is the first weight value, which can be taken as 0.5 here; α2 is the second weight value, which can be taken as 0.05 here; α3 is the third weight value, which can be taken as 0.2 here; α4 is the third weight value, which can be taken as 0.1 here; ceil is the upward rounding function; temp r is the ideal value of ambient temperature; temp s is the temperature in the actual environment; sd r is the ideal value of ambient humidity; sd s is the humidity in the actual environment; wv s is the wind speed in the actual environment; wv r Ideal ambient wind speed; fs s fs is the sunlight intensity in the actual environment; r The first weight value, the second weight value, the third weight value and the fourth weight value can be flexibly selected according to actual conditions.

[0107] When calculating the current carrying capacity adjustment factor, the four factors of environmental temperature, wind speed, sunshine intensity and humidity are taken into consideration. Temperature is the most important influencing factor, which will directly affect the heat dissipation capacity of the transmission line. Therefore, the first weight value is given the largest value. The other weight values ​​are similarly set according to the degree of influence of each factor on the heat dissipation capacity of the transmission line.

[0108] When the actual value of the ambient temperature is greater than the actual value of the ambient temperature, the heat dissipation capacity of the wire decreases, causing its own temperature to rise, and the current carrying capacity rating can be correspondingly reduced, otherwise the current carrying capacity rating can be increased; when the actual value of the ambient wind speed is greater than the ideal value of the ambient wind speed, the better the heat dissipation effect of the wire, the better the current carrying capacity rating can be correspondingly increased, otherwise the current carrying capacity rating can be reduced; when the actual value of the ambient sunshine intensity is greater than the ideal value of the ambient sunshine intensity, the temperature of the wire will be increased, and the current carrying capacity rating can be correspondingly reduced, otherwise the current carrying capacity rating can be increased; when the actual value of the ambient humidity is greater than the ideal value of the ambient humidity, the moisture in the air can improve the heat dissipation effect of the wire surface, thereby reducing the temperature of the wire, and the current carrying capacity rating can be correspondingly increased, otherwise the current carrying capacity rating can be reduced; the units of the ideal value of the ambient temperature and the actual value of the ambient temperature are both degrees Celsius; the units of the actual value of the ambient wind speed and the ideal value of the ambient wind speed are both meters per second; the units of the ideal value of the ambient sunshine intensity and the actual value of the ambient sunshine intensity are both watts per square meter. The above units are only examples, and technicians in this field can set different units according to actual needs when implementing this solution.

[0109] Step S3, calculating and generating a current carrying capacity adjustment factor according to an ambient temperature index, an ambient humidity index, an ambient wind speed index, an ambient sunshine intensity index and a current carrying capacity rating set when the transmission line leaves the factory.

[0110] In a preferred embodiment, the current carrying capacity adjustment factor is calculated by the following formula:

[0111]

[0112] Among them, CR is the current carrying capacity adjustment factor; zl e The current carrying capacity rating set for the transmission line when it leaves the factory;

[0113] The purpose of calculating the current carrying capacity adjustment factor is to dynamically adjust the rated current carrying capacity set at the factory based on actual environmental conditions, ensuring the safety and reliability of the transmission line operation in complex environments.

[0114] Step S4, calculate and generate the aging factor of the transmission line according to the real-time current carrying capacity of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line and the damage index of the surface of the transmission line.

[0115] The calculated aging factor of the transmission line is used to evaluate the aging degree of the transmission line and provide a reference for the subsequent adjustment of the rated current of the transmission line. In addition, this factor can also provide a scientific basis for the reasonable arrangement of the maintenance and replacement of the transmission line, extend the service life of the equipment and ensure the stable operation of the transmission system.

[0116] In a preferred embodiment, the aging factor of the transmission line is calculated by the following formula:

[0117]

[0118] Where Ag is the aging factor of the transmission line; temp tl is the average surface temperature of the transmission line; zl s is the real-time current carrying capacity of the transmission line; year sy The number of years the transmission line has been in use; year cs is the estimated value of the transmission line life; wx is the total number of transmission line failures; jc is the total number of transmission line inspections; lw is the crack index; qp is the bubble index; fs is the corrosion index; the average surface temperature of the transmission line is calculated by the following formula:

[0119]

[0120] Where M is the total number of temperature detections; wd m is the surface temperature of the transmission line detected for the mth time.

[0121] Specifically, the units of the years of use of the transmission line and the estimated value of the life of the transmission line are both years. If the years of use of the transmission line are less than 1 year, it will be counted as 1 year. The estimated value of the life of the transmission line can be obtained by querying the factory information; the total number of transmission line inspections is the total number of actual inspections by the staff, and the total number of faults is calculated based on the total number of transmission line inspections to obtain the total number of transmission line faults; the total number of temperature detections should be greater than or equal to 10. The above units are only examples, and those skilled in the art can set different units according to actual needs when implementing this solution.

[0122] Step S5: adjusting the rated current carrying capacity of the transmission line according to the current carrying capacity adjustment factor and the aging factor.

[0123] According to the current carrying capacity adjustment factor and the aging factor, the current carrying capacity rating of the transmission line is comprehensively adjusted. This adjustment process is designed to ensure the safe operation of the transmission line under different environmental conditions and aging conditions, and to avoid overload or potential failures. Specifically, when the environmental conditions are poor or the line is seriously aged, the current carrying capacity rating should be reduced to avoid line overload; conversely, when the environment is good and the line is relatively new, the current carrying capacity rating can be appropriately increased. This adjustment mechanism not only improves the operational safety of the transmission line, but also extends the service life of the equipment, ensuring the reliability and stability of the power system.

[0124] In a preferred embodiment, the adjusted transmission line current carrying capacity rating is calculated as follows:

[0125] The current carrying capacity adjustment factor and the aging factor are respectively normalized to generate a normalized current carrying capacity adjustment factor and a normalized aging factor, wherein the normalization operation limits the values ​​of the current carrying capacity adjustment factor and the aging factor to 0-1.

[0126] The product of the normalized current carrying capacity adjustment factor and the normalized aging factor is calculated to obtain a first product result.

[0127] The first product result and the current carrying capacity rating set when the transmission line leaves the factory are calculated to obtain a second product result.

[0128] The second product result is used as the adjusted current carrying capacity rating of the transmission line, so that the current carrying capacity rating of the transmission line is subsequently updated according to the adjusted current carrying capacity rating of the transmission line.

[0129] Based on the above method embodiment, the present invention provides a corresponding device embodiment.

[0130] like Figure 2As shown, an embodiment of the present invention provides a dynamic adjustment device for the rated current of a power transmission line, comprising: a data acquisition module, an environmental index calculation module, a current carrying capacity adjustment factor calculation module, a power transmission line aging factor calculation module and a current carrying capacity rating adjustment module;

[0131] The data acquisition module is used to obtain the rated current carrying capacity set when the power transmission line leaves the factory; obtain the temperature, humidity, wind speed and sunshine intensity in the actual environment; obtain 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. The damage index includes the crack index, the bubble index and the corrosion index.

[0132] The environmental index calculation module is used to generate an environmental temperature index, an environmental humidity index, an environmental wind speed index and an environmental sunshine intensity index according to the gap between the temperature, humidity, wind speed and sunshine intensity in the actual environment and their corresponding ideal values.

[0133] The current carrying capacity adjustment factor calculation module is used to calculate and generate the current carrying capacity adjustment factor according to the ambient temperature index, ambient humidity index, ambient wind speed index, ambient sunshine intensity index and the current carrying capacity rated value set when the transmission line leaves the factory.

[0134] The transmission line aging factor calculation module is used to calculate and generate the transmission line aging factor based on the real-time current carrying capacity of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line and the damage index of the surface of the transmission line.

[0135] The current carrying capacity rating adjustment module is used to adjust the current carrying capacity rating of the power transmission line according to the current carrying capacity adjustment factor and the aging factor.

[0136] In a preferred embodiment, the data acquisition module includes: a current carrying capacity rating storage unit, a temperature detection unit, a humidity detection unit, a wind speed detection unit, a sunlight 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 detection unit.

[0137] The current carrying capacity rating storage unit is used to obtain and store the current carrying capacity rating set when the power transmission line leaves the factory.

[0138] The temperature detection unit is used to detect the temperature in the actual environment.

[0139] The humidity detection unit is used to detect the humidity in the actual environment.

[0140] The wind speed detection unit is used to detect the wind speed in the actual environment.

[0141] The sunlight intensity detection unit is used to detect the sunlight intensity in the actual environment.

[0142] The real-time current carrying capacity detection unit is used to detect the real-time current carrying capacity of the transmission line.

[0143] The infrared temperature measuring unit is used to detect the surface temperature of the transmission line and store the total number of temperature detections.

[0144] The time statistics unit is used to count the service life of the transmission line and the estimated value of the life of the transmission line.

[0145] The maintenance statistics unit is used to count the total number of transmission line faults and the total number of transmission line inspections.

[0146] The visual detection unit is used to detect the damage index of the surface of the transmission line.

[0147] Optionally, the sunlight intensity detection unit includes a photovoltaic radiometer detector, a signal processor, and a microprocessor;

[0148] The photovoltaic radiometer detector is used to convert radiation energy into electrical signals.

[0149] The signal processor is used to amplify the electrical signal processed by the photovoltaic radiometer detector and convert the electrical signal into a digital signal.

[0150] The microprocessor is used to convert the digital signal into sunlight intensity and obtain the actual value of the ambient sunlight intensity.

[0151] Preferably, the current carrying capacity adjustment factor calculation module calculates the current carrying capacity adjustment factor by the following formula:

[0152]

[0153] Among them, CR is the current carrying capacity adjustment factor; zl e It is the rated current carrying capacity set when the transmission line leaves the factory; T is the ambient temperature index; V is the ambient wind speed index; F is the ambient sunlight intensity index; and W is the ambient humidity index.

[0154] It should be noted that the embodiments of the device described above correspond to the above embodiments of the present invention, and can implement any of the methods described above in the present invention. In addition, the embodiments of the above-mentioned device are merely schematic, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which can be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art can understand and implement it without paying any creative work.

[0155] Based on the above method embodiment of the present invention, a corresponding electronic device embodiment is provided.

[0156] An embodiment of the present invention provides an electronic device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, the method for dynamically adjusting the current-carrying rating of a transmission line as described in any one of the present invention is implemented, or, when the processor executes the computer program, the functions of the modules in the above-mentioned device embodiments are implemented.

[0157] Exemplarily, the computer program may be divided into one or more modules, which are stored in the memory and executed by the processor to implement the present invention. The one or more modules may be a series of computer program instruction segments capable of implementing specific functions, which are used to describe the execution process of the computer program in the terminal device.

[0158] The terminal device may be a computing device such as a desktop computer, a notebook, a PDA, a cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0159] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the terminal device, and uses various interfaces and lines to connect various parts of the entire terminal device.

[0160] The memory can be used to store the computer program and / or module, and the processor realizes various functions of the terminal device by running or executing the computer program and / or module stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function, etc.; the data storage area can store data created according to the use of the mobile phone, etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0161] Based on the above method embodiment, the present invention provides a storage medium embodiment;

[0162] Another embodiment of the present invention provides a storage medium, which includes a stored computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute any of the above-mentioned methods for dynamically adjusting the current carrying capacity rating of a transmission line of the present invention.

[0163] The storage medium is a computer-readable storage medium, and the computer program includes computer program code, which may be in source code form, object code form, executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium may be appropriately increased or decreased 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 electric carrier signals and telecommunication signals.

[0164] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0165] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. 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: include: Obtain the current carrying capacity rating set at the factory for the transmission line; Obtain the temperature, humidity, wind speed and sunshine intensity in the actual environment; obtain the real-time current carrying capacity of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line, and the damage index of the surface of the transmission line; wherein the damage index includes the crack index, the bubble index and the corrosion index; Generate an environmental temperature index, an environmental humidity index, an environmental wind speed index, and an environmental sunshine intensity index according to the gap between the temperature, humidity, wind speed, and sunshine intensity in the actual environment and their corresponding ideal values; The current carrying capacity adjustment factor is calculated and generated according to the ambient temperature index, ambient humidity index, ambient wind speed index, ambient sunshine intensity index and the current carrying capacity rating set when the transmission line leaves the factory; The aging factor of the transmission line is calculated based on the real-time current carrying capacity of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line and the damage index of the surface of the transmission line; The current carrying capacity rating of the transmission line is adjusted according to the current carrying capacity adjustment factor and the aging factor.

2. The method for dynamically adjusting the current carrying capacity rating of a power transmission line according to claim 1, characterized in that: The generating of the environment temperature index, environment humidity index, environment wind speed index and environment sunshine intensity index according to the gap between the temperature, humidity, wind speed and sunshine intensity in the actual environment and the corresponding ideal values ​​respectively comprises: Calculate the difference between the temperature in the actual environment and the ideal value of the ambient temperature to obtain a first difference value; Calculate and generate an ambient temperature index according to the first difference and a preset first weight value; Calculate the difference between the humidity in the actual environment and the ideal value of the ambient humidity to obtain a second difference value; Calculate and generate an environmental humidity index according to the second difference and a preset second weight value; Calculate the difference between the wind speed in the actual environment and the ideal value of the environmental wind speed to obtain a third difference value; Calculate and generate an environmental wind speed index according to the third difference and a preset third weight value; Calculate the difference between the sunshine intensity in the actual environment and the ideal value of the sunshine intensity in the environment to obtain a fourth difference value; The ambient sunlight intensity index is calculated and generated according to the fourth difference and a preset fourth weight value.

3. The method for dynamically adjusting the current carrying capacity rating of a power transmission line according to claim 2, characterized in that: The current carrying capacity adjustment factor is calculated by the following formula: Among them, CR is the current carrying capacity adjustment factor; zl e It is the rated current carrying capacity set when the transmission line leaves the factory; T is the ambient temperature index; V is the ambient wind speed index; F is the ambient sunlight intensity index; and W is the ambient humidity index.

4. The method for dynamically adjusting the current carrying capacity rating of a power transmission line according to claim 3, characterized in that: The aging factor of the transmission line is calculated by the following formula: Where Ag is the aging factor of the transmission line; temp tl is the average surface temperature of the transmission line; temp s is the temperature in the actual environment; zl s is the real-time current carrying capacity of the transmission line; year sy The number of years the transmission line has been in use; year cs is the estimated value of the transmission line life; wx is the total number of transmission line failures; jc is the total number of transmission line inspections; lw is the crack index; qp is the bubble index; fs is the corrosion index; the average surface temperature of the transmission line is calculated by the following formula: Where M is the total number of temperature detections; wd m is the surface temperature of the transmission line detected for the mth time.

5. The method for dynamically adjusting the current carrying capacity rating of a power transmission line according to claim 4, characterized in that: The damage index of the transmission line surface is determined by: Acquire surface images of power lines; Performing filtering processing on the surface image to obtain a processed image; By applying the thresholding technique, the outline of the power line is extracted from the processed image to generate an image of the power line; Identify whether there are bubble areas, crack areas and corrosion areas in the image of the transmission line; If there is a bubble area, the bubble index is set to the first index value; if there is no bubble area, the bubble index is set to 0; If there is a crack region, the crack index is set to a second index value; if there is no crack region, the crack index is set to 0; If there is a corrosion area, the corrosion index is set to a third index value; if there is no corrosion area, the corrosion index is set to 0; The first index value is smaller than the second index value, and the second index value is smaller than the third index value.

6. A device for dynamically adjusting the rated current carrying capacity of a power transmission line, characterized in that: include: Data acquisition module, environmental index calculation module, current carrying capacity adjustment factor calculation module, transmission line aging factor calculation module and current carrying capacity rating adjustment module; The data acquisition module is used to obtain the rated current carrying capacity set when the power transmission line leaves the factory; obtain the temperature, humidity, wind speed and sunshine intensity in the actual environment; obtain 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 includes a crack index, a bubble index and a corrosion index; The environmental index calculation module is used to generate an environmental temperature index, an environmental humidity index, an environmental wind speed index and an environmental sunshine intensity index according to the gap between the temperature, humidity, wind speed and sunshine intensity in the actual environment and their corresponding ideal values; The current carrying capacity adjustment factor calculation module is used to calculate and generate the current carrying capacity adjustment factor according to the ambient temperature index, ambient humidity index, ambient wind speed index, ambient sunshine intensity index and the current carrying capacity rating set when the transmission line leaves the factory; The transmission line aging factor calculation module is used to calculate and generate the transmission line aging factor according to the real-time current carrying capacity of the transmission line, the historical surface temperature data of the transmission line, the service life parameters of the transmission line, the historical inspection data of the transmission line and the damage index of the surface of the transmission line; The current carrying capacity rating adjustment module is used to adjust the current carrying capacity rating of the power transmission line according to the current carrying capacity adjustment factor and the aging factor.

7. The device for dynamically adjusting the rated current of a power transmission line according to claim 6, characterized in that: The environmental index calculation module includes an environmental temperature index calculation unit, an environmental humidity index calculation unit, an environmental wind speed index calculation unit and an environmental sunshine intensity index calculation unit; The ambient temperature index calculation unit is used to calculate the difference between the temperature in the actual environment and the ideal value of the ambient temperature to obtain a first difference; and calculate and generate the ambient temperature index according to the first difference and a preset first weight value; The environmental humidity index calculation unit is used to calculate the difference between the humidity in the actual environment and the ideal value of the environmental humidity to obtain a second difference; Calculate and generate an environmental humidity index according to the second difference and a preset second weight value; The environmental wind speed index calculation unit is used to calculate the difference between the wind speed in the actual environment and the ideal value of the environmental wind speed to obtain a third difference; and calculate and generate the environmental wind speed index according to the third difference and a preset third weight value; The ambient sunlight intensity index calculation unit is used to calculate the difference between the sunlight intensity in the actual environment and the ideal value of the ambient sunlight intensity to obtain a fourth difference value; The ambient sunlight intensity index is calculated and generated according to the fourth difference and a preset fourth weight value.

8. The device for dynamically adjusting the rated current of a power transmission line according to claim 7, characterized in that: The current carrying capacity adjustment factor calculation module calculates the current carrying capacity adjustment factor by the following formula: Among them, CR is the current carrying capacity adjustment factor; zl e It is the rated current carrying capacity set when the transmission line leaves the factory; T is the ambient temperature index; V is the ambient wind speed index; F is the ambient sunlight intensity index; and W is the ambient humidity index.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method for dynamically adjusting the current carrying capacity rating of a power transmission line as described in any one of claims 1 to 5 can be implemented.

10. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it can implement the method for dynamically adjusting the current carrying capacity rating of a power transmission line as described in any one of claims 1 to 5.

Images