Power transmission line wire deicing jump height calculation method and device based on fitting slippage condition, storage medium and electronic equipment

Abstract

The invention provides a power transmission line wire deicing jump height calculation method and device based on a fitting slippage condition, a storage medium and electronic equipment, and relates to the technical field of electric power engineering.The method comprises the steps that according to design parameters of a power transmission line, the power transmission line wire deicing jump height is calculated under the most serious non-uniform icing working condition; conducting wire state parameters of an ice-shedding gear and an adjacent non-ice-shedding gear; judging whether the wire slides or not according to the unbalanced tension acting on the two sides of the suspension insulator string at the deicing moment; when it is judged that slippage occurs, calculating a new sag after slippage occurs; calculating a hardware slip correction coefficient based on the new sag and the conductor state parameters; and calculating a final corrected jump height based on the hardware slip correction coefficient. According to the method, the prediction accuracy of the deicing jump amplitude of the power transmission line is improved, and a more reliable basis is provided for line design, anti-icing measures and operation maintenance.

Description

Technical Field

[0001] This application relates to the field of power engineering technology, and more specifically, to a method, apparatus, storage medium, and electronic device for calculating the jump height of power transmission line wires de-icing under fitting slip conditions. Background Technology

[0002] When conductors are covered with ice in winter, the ice can detach unevenly or instantaneously when the temperature rises or when the conductors are disturbed by external forces. This causes the conductors to suddenly release their stored strain energy and jump violently upwards, a phenomenon known as "ice-shedding jump." This jump can result in insufficient air gaps between conductor phases, between conductors and ground, and between conductors and lightning protection wires, leading to serious accidents such as phase-to-phase short circuits and flashover grounding, which severely threaten the safe and stable operation of the power grid.

[0003] To assess the risk of de-icing jumps and guide line design, the engineering community needs to accurately predict the maximum height (amplitude) of power line de-icing jumps. Currently, a simplified empirical formula (1) is widely used in engineering design practice: H=K×Δf Where: H is the maximum ice-removal jump height of the conductor, in meters; K is a coefficient, generally taken as 1.75 to 1.9; Δf is the difference in sag of the conductor before and after ice removal, in meters, within the same span under static conditions.

[0004] This simplified formula is easy to calculate and has a clear physical meaning. Under certain conditions, it can estimate the jump amplitude relatively well, and therefore it has been widely used.

[0005] However, this simplified formula relies on a crucial assumption: that the wire remains stationary at the suspension clamp during the de-icing process, and the conductor length within the span remains constant. In actual engineering, due to terrain variations and mountain obstructions, icing between spans, and even within a single span, is uneven, creating unbalanced tension between adjacent spans. When this unbalanced tension exceeds the gripping force of the suspension clamp, the wire will slip within the clamp. The wire slides from the side with less tension (the span with less icing) to the side with more tension (the span with more icing), causing the actual conductor length in the span with more icing to increase, resulting in greater sag and decreased tension, until the tension difference between the two spans falls below the allowable gripping force of the suspension clamp, at which point the slippage stops.

[0006] This slippage phenomenon alters the initial energy state of the ice-breaking jump. The original Δf was calculated based on the assumption of a constant conductor length, failing to reflect the sag change caused by slippage. Therefore, the jump height H calculated directly using formula (1) will deviate from the actual situation. The existing technology lacks a convenient correction method to account for this hardware slippage effect, resulting in insufficient accuracy in ice-breaking jump analysis and posing a potential safety hazard to the line. Summary of the Invention

[0007] The embodiments of this application provide a method, apparatus, storage medium, and electronic device for calculating the de-icing jump height of transmission line wires under hardware slippage conditions, in order to overcome the defect of inaccurate calculation caused by the simplified formula in the prior art not considering the slippage of the suspension clamp.

[0008] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0009] According to a first aspect of the embodiments of this application, a method for calculating the de-icing jump height of transmission line wires under hardware slippage conditions is provided, including: Based on the transmission line design parameters, calculate the conductor state parameters of the de-icing section and the adjacent non-de-icing section under the most severe uneven icing conditions. Determine whether the conductor has slipped based on the unbalanced tension acting on both sides of the suspension insulator string at the moment of de-icing; Once slippage is determined to have occurred, the new sag after slippage is calculated; Calculate the fitting slip correction coefficient based on the new sag and conductor state parameters; The final corrected jump height is calculated based on the slip correction coefficient of the hardware.

[0010] In some embodiments of this application, based on the foregoing scheme, the step of calculating the conductor state parameters of the de-icing section and the adjacent non-de-icing section under the most severe uneven icing condition according to the transmission line design parameters includes: Obtain the design parameters of the transmission line, including: span, conductor type, design meteorological conditions, insulator string type and length, and design gripping force of suspension clamp; Based on the design parameters, the conductor state parameters of the de-icing section and the adjacent non-de-icing section are calculated under the most severe uneven icing condition, including: Calculate the sag f_ice and horizontal tension T_ice after the ice is removed and re-iced; Calculate the sag f_adj_ice and horizontal tension T_adj_ice after icing of adjacent sections; Calculate the bare conductor sag f_bare and horizontal tension T_bare after de-icing. Calculate the original sag difference: Δf = f_ice - f_bare.

[0011] In some embodiments of this application, based on the foregoing scheme, determining whether the conductor has slipped based on the unbalanced tension acting on both sides of the suspension insulator string at the moment of de-icing includes: Calculate the unbalanced tension ΔT acting on both sides of the suspension insulator string at the moment of ice removal based on the conductor state parameters; Compare the unbalanced tension ΔT with the design grip force Fg of the suspension clamp; If ΔT≤Fg, then it is determined that the conductor will not slip. If ΔT > Fg, then it is determined that the conductor will slip.

[0012] In some embodiments of this application, based on the foregoing scheme, the calculation of the new sag after slippage includes: The slip amount is solved by iterative calculation; The length of the de-icing guide wire after slippage is calculated based on the amount of slippage. Calculate the sag of the conductor under icing conditions based on the length of the de-icing section. Sag in bare wire condition .

[0013] In some embodiments of this application, based on the foregoing scheme, the step of iteratively calculating and solving for the slip includes: Assuming a slip amount ΔL_slip, calculate the conductor length of the new de-icing section and the conductor length of the new adjacent section based on the slip amount ΔL_slip; Based on the new conductor length of the de-icing span and the new conductor length of the adjacent span, the bare conductor tension T'_bare of the de-icing span and the icy conductor tension T'_adj_ice of the adjacent span are recalculated using the conductor state equation. Adjust the value of ΔL_slip and repeat the calculation until the convergence condition |T'_adj_ice-T'_bare|=Fg is met.

[0014] In some embodiments of this application, based on the foregoing scheme, the calculation of the fitting slip correction coefficient based on the new sag and conductor state parameters includes: Calculate the corrected sag difference based on the new sag after slippage. : ; Calculate the corrected sag difference The ratio of the original sag difference Δf to the fitting slip correction factor is used as the fitting slip correction factor. : .

[0015] In some embodiments of this application, based on the foregoing scheme, the calculation of the final corrected jump height based on the hardware slippage correction coefficient includes: Obtain the slip correction coefficient for hardware The original sag difference Δf is used to calculate the final corrected jump height H' using the following formula: H'=k1×K×Δf=( / Δf)×K×Δf=K× ; Where K is a coefficient.

[0016] According to a second aspect of the embodiments of this application, a device for calculating the jump height of power transmission line de-icing under fitting slip conditions is provided, comprising: The first calculation unit is used to calculate the conductor state parameters of the de-icing section and the adjacent non-de-icing section under the most severe uneven icing conditions, based on the transmission line design parameters. The judgment unit is used to determine whether the conductor has slipped based on the unbalanced tension acting on both sides of the suspension insulator string at the moment of de-icing. The second calculation unit is used to calculate the new sag after slippage has occurred once slippage is determined to have occurred. The third calculation unit is used to calculate the fitting slip correction coefficient based on the new sag and conductor state parameters; The fourth calculation unit is used to calculate the final corrected jump height based on the slip correction coefficient of the hardware.

[0017] According to a third aspect of the embodiments of this application, a computer-readable storage medium is provided, the storage medium storing computer instructions that, when executed on a computer, cause the computer to perform the method as described in the first aspect.

[0018] According to a fourth aspect of the embodiments of this application, an electronic device is provided, including: a memory and a processor; The memory is used to store computer instructions; The processor is configured to invoke computer instructions stored in the memory, causing the electronic device to execute the method described in the first aspect.

[0019] Compared with the prior art, the technical solution of this application has the following advantages: 1. Improved calculation accuracy: This invention quantifies the physical phenomenon of suspension clamp slippage for the first time and introduces it into the calculation of ice-breaking jump, making up for the theoretical defects of traditional simplified formulas. This makes the predicted jump amplitude closer to engineering reality and effectively avoids safety problems caused by underestimating jump risks.

[0020] 2. Enhanced design safety and economy: Through more precise calculations, designers can more rationally determine the configuration of anti-jump measures (phase spacers, V-strings, jumper weights, etc.) or optimize tower design and phase sequence arrangement. This avoids investment waste caused by overly conservative design and prevents safety hazards caused by insufficient estimation.

[0021] 3. The method has good engineering applicability and compatibility: The correction coefficient k1 proposed in this invention is an improvement on the widely used simplified formula for de-icing jumps, H=K×Δf, which is easy for designers to understand and accept. The calculation steps are clear and can be easily integrated into existing transmission line design software to achieve automated verification.

[0022] 4. This method provides a new basis for fitting selection: It clarifies the crucial role of the gripping force Fg of the suspension clamp in suppressing ice-breaking jumps. Designers can select clamps with sufficient gripping force based on the calculated unbalanced tension ΔT, thereby actively controlling or eliminating slippage and providing theoretical support for the refined design and selection of fittings.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings: Figure 1 A flowchart illustrating a method for calculating the jump height of power transmission line de-icing under fitting slip conditions according to an embodiment of this application is shown. Figure 2 A block diagram of a device for calculating the jump height of a power line de-icing under fitting slip conditions according to an embodiment of this application is shown. Figure 3 A block diagram of an electronic device according to one embodiment of this application is shown; Figure 4 A schematic diagram of the structure of a computer system suitable for implementing the electronic device of the present application is shown. Detailed Implementation

[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0026] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0027] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0028] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such uses of these terms can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described.

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0031] The following detailed description of some embodiments of this application will be provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] To address the technical problems existing in the prior art, this invention introduces a fitting slip correction coefficient k1 based on the original simplified formula, which takes the following form: H'=k1×H=k1×K×Δf Where: H' is the corrected maximum ice-breaking jump height of the conductor after considering the slippage of the suspension clamp (m); H is the original calculated jump height (m) without considering slippage; Δf is the difference in the original sag of the conductor before and after ice breaking (m), calculated using the same method as in the background art; k1 is the fitting slippage correction coefficient proposed in this invention. The core function of this coefficient is to quantify the change in the initial energy state caused by conductor slippage, thereby correcting the final jump height.

[0033] For details, see Figure 1 The diagram shows a flowchart illustrating a method for calculating the jump height of power transmission line de-icing under fitting slip conditions according to an embodiment of this application.

[0034] like Figure 1 As shown, a method for calculating the jump height of power transmission line wires de-icing under fitting slip conditions is presented, specifically including steps S100 to S500.

[0035] refer to Figure 1 Step S100: Based on the transmission line design parameters, calculate the conductor state parameters of the de-icing section and the adjacent non-de-icing section under the most severe uneven icing condition.

[0036] In some feasible embodiments, based on the foregoing scheme, step S100 includes: Obtain the design parameters of the transmission line, including: span, conductor type, design meteorological conditions, insulator string type and length, and design gripping force of suspension clamp; Based on the design parameters, the conductor state parameters of the de-icing section and the adjacent non-de-icing section are calculated under the most severe uneven icing condition, including: Calculate the sag f_ice and horizontal tension T_ice after the ice is removed and re-iced; Calculate the sag f_adj_ice and horizontal tension T_adj_ice after icing of adjacent sections; Calculate the bare conductor sag f_bare and horizontal tension T_bare after de-icing. Calculate the original sag difference: Δf = f_ice - f_bare.

[0037] Continue to refer to Figure 1 Step S200: Determine whether the conductor has slipped based on the unbalanced tension acting on both sides of the suspension insulator string at the moment of de-icing.

[0038] In some feasible embodiments, based on the foregoing scheme, step S200 includes: Calculate the unbalanced tension ΔT acting on both sides of the suspension insulator string at the moment of ice removal based on the conductor state parameters; Compare the unbalanced tension ΔT with the design grip force Fg of the suspension clamp; If ΔT≤Fg, then it is determined that the conductor will not slip. If ΔT > Fg, then it is determined that the conductor will slip.

[0039] It should be noted that, in this embodiment, the analysis of the unbalanced tension ΔT is simplified, and it can be approximately considered that ΔT≈T_adj_ice-T_bare.

[0040] Continue to refer to Figure 1 In step S300, after determining that slippage has occurred, calculate the new sag after slippage has occurred.

[0041] It should be noted that when slippage is detected, the conductor will slide from the side with lower tension to the side with higher tension until the tension difference between the two sides is rebalanced to be less than or equal to the clamping force Fg. This process results in an increase in the length of the conductor with higher tension, while the length of the conductor in the adjacent span decreases.

[0042] In some feasible embodiments, based on the foregoing scheme, step S300 includes: The slip amount is solved by iterative calculation; The length of the de-icing guide wire after slippage is calculated based on the amount of slippage. Calculate the sag of the conductor under icing conditions based on the length of the de-icing section. Sag in bare wire condition .

[0043] In some feasible embodiments, based on the foregoing scheme, the step of iteratively calculating and solving for the slip includes: Assuming a slip amount ΔL_slip, calculate the conductor length of the new de-icing section and the conductor length of the new adjacent section based on the slip amount ΔL_slip; Based on the new conductor length of the de-icing span and the new conductor length of the adjacent span, the bare conductor tension T'_bare of the de-icing span and the icy conductor tension T'_adj_ice of the adjacent span are recalculated using the conductor state equation. Adjust the value of ΔL_slip and repeat the calculation until the convergence condition |T'_adj_ice-T'_bare|=Fg is met.

[0044] It should be noted that in practice, the convergence condition can be |T'_adj_ice-T'_bare|≈Fg.

[0045] In this embodiment, the wire length of the de-icing switch is L_cond+ΔL_slip; the wire length of the adjacent switch is L_adj_cond-ΔL_slip.

[0046] Continue to refer to Figure 1 Step S400: Calculate the fitting slip correction coefficient based on the new sag and conductor state parameters.

[0047] In some feasible embodiments, based on the foregoing scheme, step S400 includes: Calculate the corrected sag difference based on the new sag after slippage. : ; Calculate the corrected sag difference The ratio of the original sag difference Δf to the fitting slip correction factor is used as the fitting slip correction factor. : .

[0048] It should be noted that due to the slippage causing an increase in the length of the de-icing guide wire, it is usually... and Both will be greater than f_ice and f_bare, and their difference will be greater than f_ice and f_bare. It will also be greater than Δf, so k1 is usually greater than 1.0.

[0049] Continue to refer to Figure 1 Step S500: Calculate the final corrected jump height based on the hardware slip correction coefficient.

[0050] In some feasible embodiments, based on the foregoing scheme, step S500 includes: Obtain the slip correction coefficient for hardware The original sag difference Δf is used to calculate the final corrected jump height H' using the following formula: H'=k1×K×Δf=( / Δf)×K×Δf=K× ; Where K is a coefficient.

[0051] It should be noted that the jump height H' calculated in step S500 is the final ice-breaking jump height that takes into account the hardware slippage effect.

[0052] This method essentially uses a more accurate sag difference after slippage. The original Δf is replaced, and k1 is the coefficient of these two states, which makes this method compatible with the existing formula system.

[0053] Below is a specific example of this method.

[0054] Step 1: Calculate the initial state without considering slip (traditional method) 1. Using line design software or the catenary formula, the following calculations are obtained: After icing (ice thickness 20mm), the sag f_ice = 12.5m, and the horizontal tension T_ice = 35kN. The horizontal tension of the adjacent span after icing is approximately T_adj_ice = T_ice = 35kN. After de-icing (bare conductor), the sag f_bare = 8.0m, and the horizontal tension T_bare = 18kN.

[0055] 2. Calculate the original sag difference: Δf = f_ice - f_bare = 12.5 - 8.0 = 4.5m.

[0056] 3. Calculate the jump height using the traditional formula (K = 1.8): H = 1.8 × Δf = 1.8 4.5 = 8.1m.

[0057] Step 2: Perform slip judgment 1. Calculate the unbalanced tension: ΔT≈T_adj_ice-T_bare=35kN-18kN=17kN.

[0058] 2. Comparison: ΔT=17kN>Fg=15kN.

[0059] 3. Conclusion: It is determined that the conductor will slip.

[0060] Step 3: Calculate the state after slippage 1. Start the iterative calculation program. The goal is to find a slip amount ΔL_slip such that the difference between the icing tension T'_adj_ice of the adjacent span and the bare wire tension T'_bare of the de-icing span after slipping is approximately 15kN.

[0061] 2. After iterative calculation (this process can be completed by software), the final slip ΔL_slip = 0.25m is obtained.

[0062] 3. Apply this slippage amount to the de-icing setting, which increases the actual conductor length by 0.25m.

[0063] 4. Based on the new conductor length, recalculate the sag for this span: Sliding and then icing arc =13.1m.

[0064] Sagging of bare wire after slippage =8.5m.

[0065] Step 4: Calculate the hardware slip correction factor k1 1. Calculate the corrected sag difference: = - =13.1-8.5=4.6m.

[0066] 2. Calculate the correction factor: k1= / Δf=4.6 / 4.5≈1.022.

[0067] Step 5: Calculate the final corrected jump height H' 1. Calculate using the formula of this invention: H' = k1 × H = 1.022 × 8.1 ≈ 8.28 m. Alternatively, calculate directly using the corrected sag difference: H' = 1.8 × =1.8×4.6=8.28m.

[0068] Conclusion and Analysis: Using the method of this invention, the predicted de-icing jump height, considering hardware slippage, is 8.28 meters, an increase of 0.18 meters compared to the 8.1 meters calculated by the traditional method. While the increase is small in this example, in extreme conditions where unbalanced tension far exceeds gripping force, the value of k1 may be larger, leading to a very significant increase in jump height, sufficient to affect the determination of the safe distance between phases. The results of this method provide engineers with a more accurate and safer basis for decision-making.

[0069] The following describes an embodiment of the apparatus described in this application, which can be used to execute a method for calculating the jump height of power transmission line de-icing under fitting slip conditions as described in the above embodiments of this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the method described in the above applications.

[0070] Reference Figure 2 As shown, a device 200 for calculating the jump height of a power transmission line under hardware slippage conditions according to an embodiment of this application includes: The first calculation unit 201 is used to calculate the conductor state parameters of the de-icing section and the adjacent non-de-icing section under the most severe uneven icing conditions, based on the transmission line design parameters. Judgment unit 202 is used to determine whether the conductor has slipped based on the unbalanced tension acting on both sides of the suspension insulator string at the moment of de-icing; The second calculation unit 203 is used to calculate the new sag after slippage occurs when it is determined that slippage has occurred. The third calculation unit 204 is used to calculate the fitting slip correction coefficient based on the new sag and conductor state parameters. The fourth calculation unit 205 is used to calculate the final corrected jump height based on the slip correction coefficient of the hardware.

[0071] like Figure 3As shown, this application embodiment also provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor. When the processor 320 executes the computer program 311, it implements the steps of the above-mentioned method for calculating the de-icing jump height of transmission line wires under hardware slip conditions.

[0072] Since the electronic device described in this embodiment is the device used to implement the device for calculating the jump height of power transmission line wires under the condition of metal fitting slippage in the embodiments of this application, those skilled in the art can understand the specific implementation method and its various variations of the electronic device in this embodiment based on the method described in the embodiments of this application. Therefore, how the electronic device implements the method in the embodiments of this application will not be described in detail here. Any device used by those skilled in the art to implement the method in the embodiments of this application is within the scope of protection of this application.

[0073] In practice, when the computer program 311 is executed by the processor, it can implement any of the embodiments corresponding to the first aspect.

[0074] Figure 4 A schematic diagram of the structure of a computer system suitable for implementing the electronic device of the present application is shown.

[0075] It should be noted that, Figure 4 The computer system 400 of the electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0076] like Figure 4 As shown, the computer system 400 includes a central processing unit 401, which can perform various appropriate actions and processes based on a program stored in read-only memory 402 or a program loaded from storage section 408 into random access memory 403, such as performing the methods described in the above embodiments. The random access memory 403 also stores various programs and data required for system operation. The central processing unit 401, read-only memory 402, and random access memory 403 are interconnected via bus 404. Input / output interface 405 is also connected to bus 404.

[0077] The following components are connected to the input / output interface 405: an input section 406 including a keyboard, mouse, etc.; an output section 407 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the input / output interface 405 as needed. A removable medium 411, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on the drive 410 as needed so that computer programs read from it can be installed into the storage section 408 as needed.

[0078] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 409, and / or installed from removable medium 411. When the computer program is executed by central processing unit 401, it performs various functions defined in the system of this application.

[0079] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such transmitted data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0080] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0081] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0082] In another aspect, this application also provides a computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the method described in the above embodiments for calculating the jump height of power transmission line wires under hardware slippage conditions.

[0083] In another aspect, this application also provides a computer-readable medium, which may be included in the electronic device described in the above embodiments; or it may exist independently and not assembled into the electronic device. The computer-readable medium carries one or more programs, which, when executed by the electronic device, cause the electronic device to implement the method for calculating the jump height of power transmission line wires under hardware slippage conditions as described in the above embodiments.

[0084] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0085] Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, touch terminal, or network device, etc.) to execute the methods according to the embodiments of this application.

[0086] Other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. It should be understood that this application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for calculating the jump height of power transmission lines during de-icing under hardware slippage conditions, characterized in that, include: Based on the transmission line design parameters, calculate the conductor state parameters of the de-icing section and the adjacent non-de-icing section under the most severe uneven icing conditions. Determine whether the conductor has slipped based on the unbalanced tension acting on both sides of the suspension insulator string at the moment of de-icing; Once slippage is determined to have occurred, the new sag after slippage is calculated; Calculate the fitting slip correction coefficient based on the new sag and conductor state parameters; The final corrected jump height is calculated based on the slip correction coefficient of the hardware.

2. The method according to claim 1, characterized in that, The calculation of conductor state parameters between the de-icing section and the adjacent non-de-icing section under the most severe uneven icing conditions, based on the transmission line design parameters, includes: Obtain the design parameters of the transmission line, including: span, conductor type, design meteorological conditions, insulator string type and length, and design gripping force of suspension clamp; Based on the design parameters, the conductor state parameters of the de-icing section and the adjacent non-de-icing section are calculated under the most severe uneven icing condition, including: Calculate the sag f_ice and horizontal tension T_ice after the ice is removed and re-iced; Calculate the sag f_adj_ice and horizontal tension T_adj_ice after icing of adjacent sections; Calculate the bare conductor sag f_bare and horizontal tension T_bare after de-icing. Calculate the original sag difference: Δf = f_ice - f_bare.

3. The method according to claim 2, characterized in that, The method of determining whether conductor slippage has occurred based on the unbalanced tension acting on both sides of the suspension insulator string at the moment of de-icing includes: Calculate the unbalanced tension ΔT acting on both sides of the suspension insulator string at the moment of ice removal based on the conductor state parameters; Compare the unbalanced tension ΔT with the design grip force Fg of the suspension clamp; If ΔT≤Fg, then it is determined that the conductor will not slip. If ΔT > Fg, then it is determined that the conductor will slip.

4. The method according to claim 3, characterized in that, The calculation of the new sag after slippage includes: The slip amount is solved by iterative calculation; The length of the de-icing guide wire after slippage is calculated based on the amount of slippage. Calculate the sag of the conductor under icing conditions based on the length of the de-icing section. Sag in bare wire condition .

5. The method according to claim 4, characterized in that, The step of iteratively calculating and solving for the slip includes: Assuming a slip amount ΔL_slip, calculate the conductor length of the new de-icing section and the conductor length of the new adjacent section based on the slip amount ΔL_slip; Based on the new conductor length of the de-icing span and the new conductor length of the adjacent span, the bare conductor tension T'_bare of the de-icing span and the icy conductor tension T'_adj_ice of the adjacent span are recalculated using the conductor state equation. Adjust the value of ΔL_slip and repeat the calculation until the convergence condition |T'_adj_ice-T'_bare|=Fg is met.

6. The method according to claim 5, characterized in that, The calculation of the fitting slip correction coefficient based on the new sag and conductor state parameters includes: Calculate the corrected sag difference based on the new sag after slippage. : ； Calculate the corrected sag difference The ratio of the original sag difference Δf to the fitting slip correction factor is used as the fitting slip correction factor. : 。 7. The method according to claim 6, characterized in that, The calculation of the final corrected jump height based on the hardware slip correction coefficient includes: Obtain the slip correction coefficient for hardware The original sag difference Δf is used to calculate the final corrected jump height H' using the following formula: H'=k1×K×Δf=( / Δf)×K×Δf=K× ; Where K is a coefficient.

8. A device for calculating the jump height of power transmission line wires during de-icing under fitting slip conditions, characterized in that, include: The first calculation unit is used to calculate the conductor state parameters of the de-icing section and the adjacent non-de-icing section under the most severe uneven icing conditions, based on the transmission line design parameters. The judgment unit is used to determine whether the conductor has slipped based on the unbalanced tension acting on both sides of the suspension insulator string at the moment of de-icing. The second calculation unit is used to calculate the new sag after slippage has occurred once slippage is determined to have occurred. The third calculation unit is used to calculate the fitting slip correction coefficient based on the new sag and conductor state parameters; The fourth calculation unit is used to calculate the final corrected jump height based on the slip correction coefficient of the hardware.

9. A computer-readable storage medium, characterized in that, The storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1-7.

10. An electronic device, characterized in that, include: Memory and processor; The memory is used to store computer instructions; The processor is configured to invoke computer instructions stored in the memory, causing the electronic device to perform the method as described in any one of claims 1-7.

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