Method for calculating uneven ice shedding jump height of overhead transmission line and related device

Abstract

The application belongs to the technical field of overhead transmission line, and discloses a kind of overhead transmission line uneven ice shedding jump height calculation method and related device, comprising: obtaining ice shedding rate and ice shedding section span;According to ice shedding rate and ice shedding section span, conversion section span is calculated;According to conversion section span, through the preset uneven ice shedding ice jump height coefficient calculation formula, uneven ice shedding ice jump height coefficient is obtained;Then, according to the uneven ice shedding jump height calculation formula of overhead transmission line, the uneven ice shedding jump height of overhead transmission line is obtained.The whole process does not need complex processing and analysis process, and the calculation can be completed through simple and practical calculation formula, which is convenient for most engineering design personnel to use, and can meet the requirements of engineering precision through test verification.

Description

Technical Field

[0001] This invention belongs to the field of overhead transmission line technology, and relates to a method and related device for calculating the uneven de-icing jump height of overhead transmission lines. Background Technology

[0002] Conductor icing is a common phenomenon in overhead transmission lines. After conductors are covered with ice, their tension and sag will change. When the iced line encounters external disturbances such as temperature rise or wind load, it may de-icing, causing the conductor and ground wire to jump and flash over.

[0003] Currently, methods for calculating the de-icing jump height of conductors and ground wires are mostly focused on uniform icing and de-icing morphology. Although there is some research on non-uniform de-icing conditions, most of it is based on qualitative results obtained through simulation using finite element analysis software. The calculation process is complex and difficult, making it inconvenient for engineering designers to use. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing methods for calculating the uneven de-icing jump height of overhead transmission lines, which are complex and difficult to use by engineering designers. This invention provides a method and related apparatus for calculating the uneven de-icing jump height of overhead transmission lines.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] In a first aspect, the present invention provides a method for calculating the jump height of uneven de-icing on overhead transmission lines, comprising:

[0007] Obtain the de-icing rate w and the de-icing interval l;

[0008] Based on the de-icing rate and the de-icing gear spacing, calculate the converted gear spacing l': l' = w × l;

[0009] Based on the converted span l', the uneven de-icing ice jump height coefficient α is obtained by using the preset formula for calculating the uneven de-icing ice jump height coefficient. The formula for calculating the uneven de-icing ice jump height coefficient is obtained by fitting the correlation between the coefficient between the complete de-icing jump height of the overhead transmission line and the uneven de-icing jump height of the overhead transmission line under each converted span and the converted span.

[0010] The uneven de-icing jump height H of overhead transmission lines is obtained through the calculation formula for the uneven de-icing jump height of overhead transmission lines; where the calculation formula for the uneven de-icing jump height of overhead transmission lines is:

[0011] H=αn[1.75+(5.67l′+4.3h) / 10000]Δf′

[0012] Where h is the height difference of the de-icing span, Δf′ is the sag difference of the overhead transmission line before and after complete de-icing under the converted span, and n is the tower-line effect coefficient.

[0013] Optionally, when fitting the correlation between the coefficient of the jump height of the overhead transmission line after complete de-icing and the jump height of the overhead transmission line after uneven de-icing under each converted span, the fitting is based on the quadratic function correlation.

[0014] Optionally, the formula for calculating the uneven de-icing ice jump height coefficient is as follows:

[0015]

[0016] Optionally, the tower line effect coefficient is 1.00 when considering the influence of the tower line effect factor, and 0.74 when not considering the influence of the tower line effect factor.

[0017] In a second aspect, the present invention provides a system for calculating the uneven de-icing jump height of overhead transmission lines, comprising:

[0018] The data acquisition module is used to obtain the de-icing rate w and the de-icing gap l;

[0019] The conversion module is used to calculate the conversion distance l′ based on the de-icing rate and the de-icing gear distance: l′=w×l;

[0020] The coefficient determination module is used to obtain the uneven icing jump height coefficient α based on the converted span l′ and the preset uneven icing jump height coefficient calculation formula. The uneven icing jump height coefficient calculation formula is obtained by fitting the correlation between the coefficient between the complete icing jump height of the overhead transmission line and the uneven icing jump height of the overhead transmission line under each converted span and the converted span.

[0021] The calculation module is used to obtain the uneven de-icing jump height H of overhead transmission lines using the calculation formula for uneven de-icing jump height of overhead transmission lines; wherein, the calculation formula for uneven de-icing jump height of overhead transmission lines is:

[0022] H=αn[1.75+(5.67l′+4.3h) / 10000]Δf′

[0023] Where h is the height difference of the de-icing span, Δf′ is the sag difference of the overhead transmission line before and after complete de-icing under the converted span, and n is the tower-line effect coefficient.

[0024] Optionally, when fitting the correlation between the coefficient of the jump height of the overhead transmission line after complete de-icing and the jump height of the overhead transmission line after uneven de-icing under each converted span, the fitting is based on the quadratic function correlation.

[0025] Optionally, the formula for calculating the uneven de-icing ice jump height coefficient is as follows:

[0026]

[0027] Optionally, the tower line effect coefficient is 1.00 when considering the influence of the tower line effect factor, and 0.74 when not considering the influence of the tower line effect factor.

[0028] In a third aspect, the present invention provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the above-described method for calculating the uneven de-icing jump height of overhead transmission lines.

[0029] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the above-described method for calculating the uneven de-icing jump height of overhead transmission lines.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] This invention provides a method for calculating the uneven de-icing jump height of overhead transmission lines. It obtains the de-icing rate and the span distance of the de-icing sections, then calculates the converted span distance and determines the uneven de-icing jump height coefficient based on the converted span distance. Combining this with the calculation formula for uniform de-icing, and substituting the uneven de-icing jump height coefficient, a calculation formula for uneven de-icing is obtained. Finally, the uneven de-icing jump height of the overhead transmission line can be directly obtained using this formula. The entire process requires no complex processing or analysis; the calculation can be completed using a simple and practical formula, making it convenient for most engineering designers. Furthermore, experimental verification shows that it meets the accuracy requirements for engineering applications. Attached Figure Description

[0032] Figure 1 This is a flowchart illustrating the method for calculating the uneven de-icing jump height of overhead transmission lines according to an embodiment of the present invention.

[0033] Figure 2 This is a schematic diagram of 50% non-uniform de-icing in an embodiment of the present invention.

[0034] Figure 3 This is a schematic diagram of 80% non-uniform de-icing in an embodiment of the present invention.

[0035] Figure 4 This is a schematic diagram of the ice jump height under different ice removal rates at different ice removal gear distances according to an embodiment of the present invention.

[0036] Figure 5This is a structural block diagram of the overhead transmission line uneven de-icing jump height calculation system according to an embodiment of the present invention. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] The present invention will now be described in further detail with reference to the accompanying drawings:

[0040] See Figure 1 In one embodiment of the present invention, a method for calculating the jump height of uneven de-icing of overhead transmission lines is provided, specifically including the following steps:

[0041] S1: Obtain the de-icing rate w and the de-icing gap l.

[0042] S2: Calculate the converted gear distance l′ based on the de-icing rate and the de-icing gear distance: l′=w×l.

[0043] S3: Based on the converted span l′, the uneven de-icing ice jump height coefficient α is obtained through the preset formula for calculating the uneven de-icing ice jump height coefficient; wherein, the formula for calculating the uneven de-icing ice jump height coefficient is obtained by fitting the correlation between the coefficient between the complete de-icing jump height of the overhead transmission line and the uneven de-icing jump height of the overhead transmission line under each converted span and the converted span.

[0044] S4: The uneven de-icing jump height H of overhead transmission lines is obtained through the calculation formula for the uneven de-icing jump height of overhead transmission lines; whereby the calculation formula for the uneven de-icing jump height of overhead transmission lines is:

[0045] H=αn[1.75+(5.67l′+4.3h) / 10000]Δf′

[0046] Where h is the height difference of the de-icing span, Δf′ is the sag difference of the overhead transmission line before and after complete de-icing under the converted span, and n is the tower-line effect coefficient.

[0047] Among them, the conversion gap is a variable defined by summarizing the simulation results. It can be regarded as the actual de-icing length and is defined as the product of the de-icing gap and the de-icing rate.

[0048] This embodiment is based on the analysis and fitting of simulation calculation results for the de-icing jump height of continuous sections with different gaps, height differences, number of sections, and icing patterns. See [link / reference]. Figure 2 and 3 The simulation results show the states of 50% and 80% non-uniform de-icing. Based on the simulation results, an improved formula for the jump height of the power line during uniform de-icing is derived from the previous formula for calculating the de-icing jump height:

[0049]

[0050] Where H′ is the uniform de-icing jump height of the overhead transmission line, in meters; n is the tower-line effect coefficient; l is the de-icing span distance, in meters; h is the de-icing span height difference, in meters; and Δf is the sag difference of the overhead transmission line before and after complete de-icing under the current de-icing span distance, in meters. Optionally, the tower-line effect coefficient is set as follows: 1.00 when considering the influence of tower-line effects, and 0.74 when not considering the influence of tower-line effects.

[0051] In summary, the present invention provides a method for calculating the uneven de-icing jump height of overhead transmission lines. This method obtains the de-icing rate and the span distance of the de-icing sections, then calculates the converted span distance and determines the uneven de-icing jump height coefficient based on the converted span distance. Combining this with the calculation formula for uniform de-icing, and substituting the uneven de-icing jump height coefficient, a calculation formula for uneven de-icing is obtained. Finally, the uneven de-icing jump height of the overhead transmission line can be directly obtained using this formula. The entire process requires no complex processing or analysis; the calculation can be completed using a simple and practical formula, making it convenient for most engineering designers. Furthermore, experimental verification shows that it meets the accuracy requirements for engineering applications.

[0052] In one possible implementation, when fitting the correlation between the coefficient of the complete de-icing jump height and the uneven de-icing jump height of the overhead transmission line under each converted span and the converted span, the fitting is based on a quadratic function correlation.

[0053] Specifically, based on the simulation results, the conversion relationship between uniform and non-uniform de-icing jump heights of overhead transmission lines is sought. The following two phenomena can be observed based on the simulation results:

[0054] 1. When the de-icing gate spacing is different in uneven de-icing, 80% uneven de-icing with different de-icing gate spacing 'a' can be equated to 100% uniform de-icing with different de-icing gate spacing 'b', but where b = a × 80%. In this case, the de-icing jump height in the two situations will have a relatively fixed proportional relationship due to the difference in constraints at both ends of the de-icing gate. This allows us to derive a quantitative relationship between the ice jump height under the two de-icing methods when the de-icing gate spacing is different, and further, to determine the ice jump height caused by uneven de-icing when the de-icing gate spacing is different.

[0055] 2. When the ice removal rate is different for the same ice removal gap A, different ice removal rates w can be equated to 100% uniform ice removal with an ice removal gap b = a × w. In this case, the ice jump height in the two situations will have a relatively fixed proportional relationship due to the difference in constraints at both ends of the ice removal gap. Therefore, by comparing this with 100% uniform ice removal with different uniform gaps, the ice jump height caused by uneven ice removal while maintaining the same ice removal rate w can be determined.

[0056] See Figure 4 Based on the above two phenomena, a new variable is defined: converted range, where converted range = ice-free range × ice-free rate. Using interpolation, the ice jump heights corresponding to converted ranges of 400m, 500m, 600m, 700m, and 800m are marked and connected by dashed lines. The ice jump heights at 100% complete ice removal for the same range are marked with an asterisk. It can be seen that the line connecting the ice jump heights at the same converted range is essentially a horizontal line, and there is a coefficient relationship between this coefficient and the ice jump heights at 100% complete ice removal for the same range marked by the asterisks on the right side of the figure. This coefficient decreases from 400m to 800m, reaching its minimum at 800m. Statistical fitting reveals a quadratic function correlation between this coefficient and the range.

[0057] In this embodiment, the formula for calculating the uneven de-icing ice jump height coefficient obtained by fitting is as follows:

[0058]

[0059] Then, substituting the uneven de-icing jump height coefficient into the correction formula for the jump height of the power line in the improved uniform de-icing method, we obtain the calculation formula for the uneven de-icing jump height of overhead transmission lines:

[0060] H=αn[1.75+(5.67l′+4.3h) / 10000]Δf′

[0061] The calculation method for the difference in sag of overhead transmission lines before and after complete de-icing under the converted span can be found in professional books such as "Design of Overhead Transmission Lines (Second Edition)" and will not be elaborated here.

[0062] In one possible implementation, a specific example illustrates the method for calculating the uneven de-icing jump height of overhead transmission lines according to the present invention. In this implementation, the number of consecutive spans is 7, with the fourth span in the middle experiencing de-icing, and the length of the suspension insulator string is taken as 9m. Specific parameters are shown in Tables 1 and 2.

[0063] Table 1 Meteorological Parameters

[0064] Meteorological Zone Temperature (°C) Wind speed (m / s) Ice thickness (mm) minimum temperature -30 0 0 average temperature 10 0 0 Maximum wind -5 30 0 Ice -5 10 10 highest temperature 40 0 0 Install -15 10 0 External overvoltage 15 10 0 Internal overvoltage 10 16.76 0

[0065] Table 2 Conductor Parameter Table

[0066]

[0067] The method for calculating the uneven de-icing jump height of overhead transmission lines according to the present invention was used to calculate the uneven de-icing jump height of overhead transmission lines and compared with the results obtained by the finite element method, resulting in Table 3.

[0068] Table 3 Comparison of Calculation Results

[0069]

[0070]

[0071]

[0072] It is evident that the difference between the calculated value by the method of the present invention and the calculation by the finite element method is rarely greater than 5%, indicating that the method for calculating the uneven de-icing jump height of overhead transmission lines of the present invention is a simplified calculation method applicable to the calculation of the uneven de-icing jump height of overhead transmission lines.

[0073] In summary, the present invention provides a method for calculating the non-uniform de-icing jump height of overhead transmission lines. Compared with previous research results, this method not only obtains quantitative results through simulation using finite element analysis software, but also derives a simplified calculation formula for the non-uniform de-icing jump height through data analysis and by combining the calculation formula for uniform de-icing with a fitting and derivation method. This fills a gap in related research and enables rapid calculation of the non-uniform de-icing jump height.

[0074] The following are embodiments of the apparatus of the present invention, which can be used to execute embodiments of the method of the present invention. For details not disclosed in the apparatus embodiments, please refer to the embodiments of the method of the present invention.

[0075] See Figure 5In another embodiment of the present invention, a system for calculating the uneven de-icing jump height of overhead transmission lines is provided, which can be used to implement the above-mentioned method for calculating the uneven de-icing jump height of overhead transmission lines. Specifically, the system for calculating the uneven de-icing jump height of overhead transmission lines includes a data acquisition module, a conversion module, a coefficient determination module, and a calculation module.

[0076] The data acquisition module is used to acquire the de-icing rate w and the de-icing span distance l; the conversion module is used to calculate the conversion span distance l′ based on the de-icing rate and the de-icing span distance: l′=w×l; the coefficient determination module is used to obtain the uneven de-icing ice jump height coefficient α based on the conversion span distance l′ and the preset uneven de-icing ice jump height coefficient calculation formula; the uneven de-icing ice jump height coefficient calculation formula is obtained by fitting the correlation between the coefficient between the complete de-icing jump height and the uneven de-icing jump height of the overhead transmission line under each conversion span distance and the conversion span distance; the calculation module is used to obtain the uneven de-icing jump height H of the overhead transmission line through the uneven de-icing jump height calculation formula of the overhead transmission line, where the uneven de-icing jump height calculation formula of the overhead transmission line is: H=αn[1.75+(5.67l′+4.3h) / 10000]Δf′.

[0077] In one possible implementation, when fitting the correlation between the coefficient of the complete de-icing jump height and the uneven de-icing jump height of the overhead transmission line under each converted span and the converted span, the fitting is based on a quadratic function correlation.

[0078] In one possible implementation, the formula for calculating the uneven de-icing ice jump height coefficient is as follows:

[0079]

[0080] In one possible implementation, the tower line effect coefficient is 1.00 when the tower line effect factor is taken into account, and 0.74 when the tower line effect factor is not taken into account.

[0081] All relevant content of each step involved in the aforementioned embodiment of the method for calculating the uneven de-icing jump height of overhead transmission lines can be referenced to the functional description of the corresponding functional module of the system for calculating the uneven de-icing jump height of overhead transmission lines in the embodiments of the present invention, and will not be repeated here.

[0082] The module division in this embodiment of the invention is illustrative and represents only one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in the various embodiments of the invention can be integrated into a single processor, exist as separate physical entities, or be integrated into a single module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0083] In another embodiment of the present invention, a computer device is provided, comprising a processor and a memory. The memory stores a computer program, which includes program instructions. The processor executes the program instructions stored in the computer storage medium. The processor may 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. It is the computing and control core of the terminal, suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in the computer storage medium to achieve a corresponding method flow or corresponding function. The processor described in this embodiment of the present invention can be used in the operation of a method for calculating the jump height of uneven de-icing of overhead transmission lines.

[0084] In another embodiment of the present invention, a storage medium is provided, specifically a computer-readable storage medium (Memory), which is a memory device in a computer device used to store programs and data. It is understood that the computer-readable storage medium here can include both the built-in storage medium in the computer device and extended storage media supported by the computer device. The computer-readable storage medium provides storage space that stores the terminal's operating system. Furthermore, the storage space also stores one or more instructions suitable for loading and execution by a processor. These instructions can be one or more computer programs (including program code). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk storage device. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the corresponding steps of the method for calculating the uneven de-icing jump height of overhead transmission lines in the above embodiments.

[0085] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0086] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0087] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0088] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for calculating the jump height of uneven de-icing on overhead transmission lines, characterized in that, include: Obtain the de-icing rate and de-icing gear distance ; Calculate the converted gear distance based on the de-icing rate and the de-icing gear spacing. : = × ; Based on the converted gear distance The uneven ice-freeing ice jump height coefficient is obtained by using a preset formula for calculating the uneven ice-freeing ice jump height coefficient. The formula for calculating the ice jump height coefficient of uneven de-icing is obtained by fitting the correlation between the coefficient of the complete de-icing jump height of the overhead transmission line and the uneven de-icing jump height of the overhead transmission line under each converted span and the converted span. The uneven de-icing jump height of overhead transmission lines is obtained using the calculation formula. The formula for calculating the uneven de-icing jump height of overhead transmission lines is as follows: in, To reduce the height difference of the ice removal gear, To calculate the sag difference of overhead transmission lines before and after complete ice removal under the specified span, n This is the tower line effect coefficient; The formula for calculating the uneven de-icing ice jump height coefficient is as follows: 。 2. The method for calculating the uneven de-icing jump height of overhead transmission lines according to claim 1, characterized in that, When fitting the correlation between the coefficient of the jump height of the overhead transmission line after complete de-icing and the jump height of the overhead transmission line after uneven de-icing under each converted span, the fitting is based on the quadratic function correlation.

3. The method for calculating the uneven de-icing jump height of overhead transmission lines according to claim 1, characterized in that, The tower line effect coefficient is 1.00 when the tower line effect factor is considered, and 0.74 when the tower line effect factor is not considered.

4. A system for calculating the uneven de-icing jump height of overhead transmission lines, characterized in that, include: The data acquisition module is used to obtain the de-icing rate. and de-icing gear distance ; The conversion module is used to calculate the conversion distance based on the de-icing rate and the de-icing gear distance. : = × ; The coefficient determination module is used to determine the conversion range. The uneven ice-freeing ice jump height coefficient is obtained by using a preset formula for calculating the uneven ice-freeing ice jump height coefficient. The formula for calculating the ice jump height coefficient of uneven de-icing is obtained by fitting the correlation between the coefficient of the complete de-icing jump height of the overhead transmission line and the uneven de-icing jump height of the overhead transmission line under each converted span and the converted span. The calculation module is used to obtain the uneven de-icing jump height of overhead transmission lines using the formula for calculating the uneven de-icing jump height of overhead transmission lines. The formula for calculating the uneven de-icing jump height of overhead transmission lines is as follows: in, To reduce the height difference of the ice removal gear, To calculate the sag difference of overhead transmission lines before and after complete ice removal under the specified span, n This is the tower line effect coefficient; The formula for calculating the uneven de-icing ice jump height coefficient is as follows: 。 5. The calculation system for uneven de-icing jump height of overhead transmission lines according to claim 4, characterized in that, When fitting the correlation between the coefficient of the jump height of the overhead transmission line after complete de-icing and the jump height of the overhead transmission line after uneven de-icing under each converted span, the fitting is based on the quadratic function correlation.

6. The calculation system for uneven de-icing jump height of overhead transmission lines according to claim 4, characterized in that, The tower line effect coefficient is 1.00 when the tower line effect factor is considered, and 0.74 when the tower line effect factor is not considered.

7. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method for calculating the uneven de-icing jump height of overhead transmission lines as described in any one of claims 1 to 3.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the method for calculating the uneven de-icing jump height of overhead transmission lines as described in any one of claims 1 to 3.

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