Method, system and equipment for calculating equivalent icing thickness of strain tower of power transmission line
By constructing an ice-covered mass calculation model that takes into account the insulating angle of the insulator string, the problem of difficulty in calculating the thickness of the equal value of the tension tower is solved, and the accurate calculation of the ice-covered thickness of the tension tower is achieved, and the accuracy and reliability of ice-covered monitoring are improved.
Patent Information
- Application Number
- CN202411776784.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-03-28
AI Technical Summary
Due to the large change in the angle of the insulator string, the calculation of the equivalent ice thickness is difficult, and it is difficult for the prior art to accurately obtain the equivalent ice thickness of the tensile tower.
By obtaining the dynamic parameters of the insulator strings at both ends of the transmission lines before and after the ice-covered, and combining the tensile force and angle of the insulator string, an ice-covered mass calculation model considering the insulator string inclination angle is constructed, thereby calculating the equivalent ice-covered thickness of the transmission line.
The difficulty in calculating the thickness of the equal value of the tension tower is solved, and the accurate calculation of the thickness of the tension tower is achieved, which improves the accuracy and reliability of the ice covering monitoring.
Smart Images
Figure CN119719580A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of ice coating thickness calculation, and in particular to a method, system and device for calculating the equivalent ice coating thickness of a transmission line tension tower. Background Art
[0002] The ice tension monitoring device installed on the transmission line tower can measure the change in the weight of the conductor by weighing. The change in tension is directly related to the thickness of ice covering the conductor. The absolute values of insulator tension in different line sections and towers vary greatly. It is difficult to intuitively reflect the severity of line icing through the tension value and its change. It is usually necessary to convert the tension value into the equivalent ice thickness of the line conductor.
[0003] The calculation of the tension of a straight tower is relatively simple because the insulator string is in an almost vertical state, and a relatively accurate ice thickness value can be obtained through an appropriate calculation model. However, due to the large changes in the insulator angle of the tension tower, it is necessary to consider the tension in addition to the gravity of the conductor, so it is relatively difficult to calculate the equivalent ice thickness. At the same time, there are relatively many tension towers in heavy ice areas, which leads to the application of ice tension monitoring devices for tension towers being greatly restricted, making it impossible to accurately obtain the equivalent ice thickness of the tension tower.
[0004] In view of this, the present invention aims to provide a method, system and device for calculating the equivalent ice thickness of a transmission line tension tower to solve the above-mentioned related problems. Summary of the invention
[0005] The technical problem to be solved by the present invention is that in the prior art, due to the large angle variation of the insulator string of the tension tower, it is necessary to consider the tension force other than the gravity of the conductor, which leads to the technical problem that the calculation of the equivalent ice thickness is relatively difficult. The present invention provides a method, system and device for calculating the equivalent ice thickness of the transmission line tension tower, by obtaining the dynamic parameters of the insulator strings at both ends of the transmission line before and after icing, combining the tension force and the angle of the insulator strings at both ends before and after icing to construct an ice mass calculation model considering the inclination angle of the insulator string, thereby solving the technical problem that in the prior art, due to the large angle variation of the insulator string of the tension tower, it is necessary to consider the tension force other than the gravity of the conductor, which leads to the technical problem that the calculation of the equivalent ice thickness is relatively difficult.
[0006] The present invention is achieved through the following technical solutions:
[0007] A method for calculating equivalent ice thickness of a transmission line tension tower, the method comprising:
[0008] Acquire the line parameters of the transmission line and the first historical dynamic parameters of the insulator strings at both ends of the transmission line before ice coating, and construct a first relationship function using the line parameters, the first historical dynamic parameters and gravity acceleration;
[0009] Obtaining second historical dynamic parameters of insulator strings at both ends of the transmission line after ice coating, and constructing a second relationship function using the line parameters, the second historical dynamic parameters and gravity acceleration;
[0010] The first relationship function and the second relationship function are combined and simplified to construct an ice mass calculation model;
[0011] The dynamic parameters of the insulator strings at both ends of the transmission line after ice coating to be calculated are input into the ice coating mass calculation model to calculate the ice coating mass per unit length of the transmission line;
[0012] The ice mass per unit length of the transmission line is input into the equivalent thickness calculation model to obtain the equivalent ice thickness of the transmission line.
[0013] Furthermore, the line parameters of the transmission line and the first historical dynamic parameters of the insulator strings at both ends of the transmission line before ice coating are obtained, and the first relationship function is constructed by using the line parameters, the first historical dynamic parameters and the gravity acceleration, which is specifically:
[0014] Acquire line parameters of the transmission line, wherein the line parameters include the length of the transmission line and the weight per unit length of the transmission line;
[0015] Acquire first historical dynamic parameters of the insulator strings at both ends of the transmission line before icing, wherein the first historical dynamic parameters include the tension of the two insulator strings before icing, the inclination angles of the two insulator strings before icing, and the weight of the two insulator strings;
[0016] The first relationship function is constructed by using the line parameters, the first historical dynamic parameters and the gravity acceleration, which is:
[0017] F a0 cosθ a0 +F b0 cosθ b0 ≈(lω+M a +M b )
[0018] Among them, F a0 、F b0 Respectively represent the tension of the two insulator strings before ice coating; θ a0 ,θ b0 Respectively represent the ice-covered forward inclination angles of the two insulator strings; M a 、M b represents the weight of the insulator string; l represents the length of the transmission line; ω represents the weight of the conductor per unit length of the transmission line; g is the acceleration due to gravity.
[0019] Furthermore, the second historical dynamic parameters of the insulator strings at both ends of the transmission line after ice coating are obtained, and the second relationship function is constructed by using the line parameters, the second historical dynamic parameters and the gravity acceleration, which is specifically:
[0020] Acquire second historical dynamic parameters of the insulator strings at both ends of the transmission line after ice coating, wherein the second historical dynamic parameters include the tension of the two insulator strings after ice coating, the inclination angles of the two insulator strings after ice coating, and the weights of the two insulator strings;
[0021] The second relationship function is constructed by using the line parameters, the second historical dynamic parameters and the gravity acceleration, which is:
[0022] F a1 cosθ a1 +F b1 cosθ b1 ≈(lω+lq i +M a +M b )
[0023] Among them, F a1 、F b1 Represents the tension of two insulator strings after ice coating; θ a1 ,θ b1 Indicates the ice-covered forward inclination angle of two insulator strings; M a 、M b represents the weight of the insulator string; l represents the length of the transmission line; ω represents the weight of the conductor per unit length of the transmission line; g is the acceleration due to gravity.
[0024] Furthermore, the first relationship function and the second relationship function are combined and simplified to construct an ice mass calculation model, and the ice mass calculation model is specifically:
[0025]
[0026] Among them, q i represents the ice mass per unit length of the transmission line; l represents the length of the transmission line; g is the acceleration of gravity; F a1 、F b1 Represents the tension of two insulator strings after ice coating; θ a1 ,θ b1 Indicates the ice-covered forward tilt angle of two insulator strings; F a0 、F b0 Respectively represent the tension of the two insulator strings before ice coating; θ a0 ,θ b0 They represent the ice-covered forward inclination angles of the two insulator strings respectively.
[0027] Furthermore, the ice mass per unit length of the transmission line is input into the equivalent thickness calculation model to obtain the equivalent ice thickness of the transmission line, wherein the equivalent thickness calculation model is specifically:
[0028]
[0029] Where b is the equivalent thickness; q i represents the ice mass per unit length of the transmission line; ρ represents the ice density, ρ=0.9×10 -3 kg / (m·m 2 );D represents the diameter of the transmission line conductor.
[0030] The present invention also provides a system for calculating the equivalent ice thickness of a transmission line tension tower, which is used in any one of the above-mentioned methods for calculating the equivalent ice thickness of a transmission line tension tower, and the system comprises:
[0031] The first module is used to obtain the line parameters of the transmission line and the first historical dynamic parameters of the insulator strings at both ends of the transmission line before ice coating, and to construct a first relationship function using the line parameters, the first historical dynamic parameters and gravity acceleration;
[0032] The second module is used to obtain the second historical dynamic parameters of the insulator strings at both ends of the transmission line after ice coating, and to construct a second relationship function using the line parameters, the second historical dynamic parameters and the gravity acceleration;
[0033] The third module is used to combine and simplify the first relationship function and the second relationship function to construct an ice mass calculation model;
[0034] The fourth module is used to input the dynamic parameters of the insulator strings at both ends of the transmission line after ice coating to be calculated into the ice coating mass calculation model, and calculate the ice coating mass per unit length of the transmission line;
[0035] The fifth module is used to input the ice mass per unit length of the transmission line into the equivalent thickness calculation model to obtain the equivalent ice thickness of the transmission line.
[0036] Furthermore, the line parameters of the transmission line and the first historical dynamic parameters of the insulator strings at both ends of the transmission line before ice coating are obtained, and the first relationship function is constructed by using the line parameters, the first historical dynamic parameters and the gravity acceleration, which is specifically:
[0037] Acquire line parameters of the transmission line, wherein the line parameters include the length of the transmission line and the weight per unit length of the transmission line;
[0038] Acquire first historical dynamic parameters of the insulator strings at both ends of the transmission line before icing, wherein the first historical dynamic parameters include the tension of the two insulator strings before icing, the inclination angles of the two insulator strings before icing, and the weight of the two insulator strings;
[0039] The first relationship function is constructed by using the line parameters, the first historical dynamic parameters and the gravity acceleration, which is:
[0040] F a0 cosθ a0 +F b0 cosθ b0 ≈(lω+M a +M b )
[0041] Among them, F a0 、F b0 Respectively represent the tension of the two insulator strings before ice coating; θ a0 ,θ b0 Respectively represent the ice-covered forward inclination angles of the two insulator strings; M a 、M b represents the weight of the insulator string; l represents the length of the transmission line; ω represents the weight of the conductor per unit length of the transmission line; g is the acceleration due to gravity.
[0042] The present invention also provides a computer device, comprising a system memory and a processor, wherein the system memory stores a computer program, and the processor implements the steps of the method described in any one of claims 1 to 5 when executing the computer program.
[0043] The present invention also provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of any one of the methods described above are implemented.
[0044] The present invention also provides a computer program product comprising instructions, and when the instructions are executed by a computer device cluster, the computer device cluster executes any of the above methods.
[0045] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0046] In the present invention, by acquiring the dynamic parameters of the insulator strings at both ends of the transmission line before and after icing, the tension and angle of the insulator strings at both ends before and after icing are combined to construct an icing mass calculation model that takes into account the inclination angle of the insulator strings, thereby solving the technical problem in the prior art that the calculation of equivalent icing thickness is relatively difficult due to the large angle variation of the insulator strings of the tension tower and the need to consider the tension in addition to the gravity of the conductor. BRIEF DESCRIPTION OF THE DRAWINGS
[0047] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:
[0048] Figure 1 This is a method flow chart of a method for calculating equivalent ice thickness of a transmission line tension tower in this embodiment;
[0049] Figure 2 A schematic diagram of the stress condition of an insulator string provided in this embodiment when both ends are tension towers;
[0050] Figure 3 This is a schematic cross-sectional view of the transmission line conductor after ice coating in this embodiment;
[0051] Figure 4 A schematic diagram of the stress condition of an insulator string provided in this embodiment when one end is a tension tower and the other end is a straight tower;
[0052] Figure 5 This is a schematic diagram of system modules of a system for calculating equivalent ice thickness of a transmission line tension tower in this embodiment;
[0053] Figure 6 A schematic diagram of the structure of a computer device. DETAILED DESCRIPTION
[0054] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope of the present disclosure. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.
[0055] In the present disclosure, unless otherwise specified, the use of the terms "first", "second", etc. to describe various elements is not intended to limit the positional relationship, timing relationship, or importance relationship of these elements, and such terms are only used to distinguish one element from another element. In some examples, the first element and the second element may refer to the same instance of the element, and in some cases, based on the description of the context, they may also refer to different instances.
[0056] The terms used in the description of various examples in this disclosure are only for the purpose of describing specific examples and are not intended to be limiting. Unless the context clearly indicates otherwise, if the number of elements is not specifically limited, the element can be one or more. In addition, the term "and / or" used in this disclosure covers any one of the listed items and all possible combinations.
[0057] Example 1
[0058] In this embodiment, it is taken as an example that both ends of the transmission line are tension towers. Figure 2 The figure shows a schematic diagram of the stress condition of a tension tower at both ends. This embodiment provides a method for calculating the equivalent ice thickness of a transmission line tension tower. Figure 1 As shown, the method includes:
[0059] S1: Obtain the line parameters of the transmission line and the first historical dynamic parameters of the insulator strings at both ends of the transmission line before ice coating, and construct a first relationship function using the line parameters, the first historical dynamic parameters and gravity acceleration, specifically:
[0060] Acquire line parameters of the transmission line, wherein the line parameters include the length of the transmission line and the weight per unit length of the transmission line;
[0061] Acquire first historical dynamic parameters of the insulator strings at both ends of the transmission line before icing, wherein the first historical dynamic parameters include the tension of the two insulator strings before icing, the inclination angles of the two insulator strings before icing, and the weight of the two insulator strings;
[0062] The first relationship function is constructed by using the line parameters, the first historical dynamic parameters and the gravity acceleration, which is:
[0063] F a0 cosθ a0 +F b0 cosθ b0 ≈(lω+M a +M b )
[0064] Among them, F a0 、F b0 Respectively represent the tension of the two insulator strings before ice coating; θ a0 ,θ b0 Respectively represent the ice-covered forward inclination angles of the two insulator strings; M a 、M b represents the weight of the insulator string; l represents the length of the transmission line; ω represents the weight of the conductor per unit length of the transmission line; g is the acceleration due to gravity.
[0065] It should be noted that, in this embodiment, the first relationship function can be obtained by Newton's first law, which represents the tension ( a0 cosθ a0 +F b0 cosθ b0 ) is equal to the weight of the insulator string and the line conductor ((lω+M a +M b )g).
[0066] S2: Obtain the second historical dynamic parameters of the insulator strings at both ends of the transmission line after ice coating, and construct a second relationship function using the line parameters, the second historical dynamic parameters and the gravity acceleration, specifically:
[0067] Acquire second historical dynamic parameters of the insulator strings at both ends of the transmission line after ice coating, wherein the second historical dynamic parameters include the tension of the two insulator strings after ice coating, the inclination angles of the two insulator strings after ice coating, and the weights of the two insulator strings;
[0068] The second relationship function is constructed by using the line parameters, the second historical dynamic parameters and the gravity acceleration, which is:
[0069] F a1 cosθ a1 +F b1 cosθ b1 ≈(lω+lq i +M a +M b )
[0070] Among them, F a1 、F b1 Represents the tension of two insulator strings after ice coating; θ a1 ,θ b1 Indicates the ice-covered forward inclination angle of two insulator strings; M a 、M b represents the weight of the insulator string; l represents the length of the transmission line; ω represents the weight of the conductor per unit length of the transmission line; g is the acceleration due to gravity.
[0071] S3: The first relationship function and the second relationship function are combined and simplified to construct an ice mass calculation model. The ice mass calculation model is specifically:
[0072]
[0073] Among them, q i represents the ice mass per unit length of the transmission line; l represents the length of the transmission line; g is the acceleration of gravity; F a1 、F b1 Represents the tension of two insulator strings after ice coating; θ a1,θ b1 Indicates the ice-covered forward tilt angle of two insulator strings; F a0 、F b0 Respectively represent the tension of the two insulator strings before ice coating; θ a0 ,θ b0 They represent the ice-covered forward inclination angles of the two insulator strings respectively.
[0074] S4: inputting the dynamic parameters of the insulator strings at both ends of the transmission line after ice coating to be calculated into the ice coating mass calculation model, and calculating the ice coating mass per unit length of the transmission line;
[0075] S5: Input the ice mass per unit length of the transmission line into an equivalent thickness calculation model to obtain the equivalent ice thickness of the transmission line, wherein the equivalent thickness calculation model is specifically:
[0076]
[0077] Where b is the equivalent thickness; q i represents the ice mass per unit length of the transmission line; ρ represents the ice density, ρ=0.9×10 -3 kg / (m·m 2 );D represents the diameter of the transmission line conductor.
[0078] It should be noted that, in this embodiment, see Figure 3 As shown in the figure, D is the diameter of the transmission line conductor, b is the equivalent thickness, and the derivation process of the equivalent thickness calculation model is as follows: First, the cross-sectional area of the ice-covered part is calculated For a transmission line with a length of l, the formula for calculating the ice mass is: Importing the ice mass calculation model into the calculation formula, we can get πρl(Db+b 2 )=q i l; then use the root-finding formula to convert and get the equivalent thickness calculation model.
[0079] Specifically, in this embodiment, by obtaining the dynamic parameters of the insulator strings at both ends of the transmission line before and after icing, the tension and angle of the insulator strings at both ends before and after icing are combined to construct an icing mass calculation model that takes into account the inclination angle of the insulator strings, thereby solving the technical problem in the prior art that the calculation of equivalent icing thickness is relatively difficult due to the large angle variation of the insulator strings of the tension tower and the need to consider the tension in addition to the gravity of the conductor.
[0080] Meanwhile, in other embodiments, there is also a case where one end of the transmission line is a straight tower and the other end is a tension tower, see Figure 4 As shown in the figure, a schematic diagram of the stress condition of a straight tower at one end and a tension tower at the other end is given. The inclination angle θ of the insulator string at one end of the straight tower before and after ice coating is shown in the figure.a0 and θ a1 Both are 0.
[0081] Example 2
[0082] See also Figure 5 As shown, the present invention also provides a system for calculating the equivalent ice thickness of a transmission line tension tower, which is used in any one of the above-mentioned methods for calculating the equivalent ice thickness of a transmission line tension tower, and the system includes:
[0083] The first module 100 is used to obtain line parameters of the transmission line and first historical dynamic parameters of insulator strings at both ends of the transmission line before ice coating, and construct a first relationship function using the line parameters, the first historical dynamic parameters and gravity acceleration;
[0084] The second module 200 is used to obtain the second historical dynamic parameters of the insulator strings at both ends of the transmission line after ice coating, and construct a second relationship function using the line parameters, the second historical dynamic parameters and gravity acceleration;
[0085] The third module 300 is used to combine and simplify the first relationship function and the second relationship function to construct an ice mass calculation model;
[0086] The fourth module 400 is used to input the dynamic parameters of the insulator strings at both ends of the transmission line after ice coating to be calculated into the ice coating mass calculation model, and calculate the ice coating mass per unit length of the transmission line;
[0087] The fifth module 500 is used to input the ice mass per unit length of the transmission line into the equivalent thickness calculation model to obtain the equivalent ice thickness of the transmission line.
[0088] It should be noted that the modules in the system of Example 2 correspond to the steps in the method of Example 1. The steps in the method of Example 1 have been described in detail in Example 1. In this Example 2, the contents of the modules in the system will not be described in detail.
[0089] Example 3
[0090] See also Figure 6 As shown, this embodiment further provides a computer device, including a system memory 1005 and a processor 1001, wherein the system memory 1005 stores a computer program, and the processor 1001 implements the steps of any of the above methods when executing the computer program.
[0091] It should be noted that the processor 1001 is used to execute the steps in the above method embodiments according to the instructions in the program code. Alternatively, the processor 1001 implements the functions of each module / unit in the above system / device embodiments when executing the computer program.
[0092] Specifically, in this embodiment, the computer program may be divided into one or more modules / units, one or more modules / units are stored in the system memory 1005, and are executed by the processor 1001 to complete the present application. One or more modules / units may be a series of computer program instruction segments that can complete specific functions, and the instruction segments are used to describe the execution process of the computer program in the terminal device.
[0093] 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 1001 and a system memory 1005. Those skilled in the art will appreciate that this does not constitute a limitation on the terminal device, and may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal device may also include an input / output device 1003, a network access device 1002, a bus 1006, etc.
[0094] The processor 1001 may be a central processing unit (CPU), or other general-purpose processors 1001, digital signal processors 1001 (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 1001 may be a microprocessor or any conventional processor, etc.
[0095] The system memory 1005 may be an internal storage unit of the terminal device, such as a hard disk or memory of the terminal device. The system memory 1005 may also be a storage device 1004 of the terminal device, such as a plug-in hard disk, a smart memory card (SmartMedia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (FlashCard), etc. equipped on the terminal device. Further, the system memory 1005 may also include both the internal storage unit of the terminal device and the storage device 1004. The system memory 1005 is used to store computer programs and other programs and data required by the terminal device. The system memory 1005 may also be used to temporarily store data that has been output or is to be output.
[0096] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems, systems and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0097] Example 4
[0098] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any one of the above methods are implemented.
[0099] Among them, the computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared or semiconductor system, system or device, or any combination of the above. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection with 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), registers, hard disks, optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above, or any other form of computer-readable storage medium known in the art.
[0100] An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an application-specific integrated circuit (ASIC). In an embodiment of the present invention, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system, or device.
[0101] Example 5
[0102] This embodiment also provides a computer program product including instructions. When the instructions are executed by a computer device cluster, the computer device cluster executes the method described in Embodiment 1.
[0103] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A method for calculating the equivalent ice thickness of a transmission line tension tower, characterized in that the method include: Acquire the line parameters of the transmission line and the first historical dynamic parameters of the insulator strings at both ends of the transmission line before ice coating, and construct a first relationship function using the line parameters, the first historical dynamic parameters and gravity acceleration; Obtaining second historical dynamic parameters of insulator strings at both ends of the transmission line after ice coating, and constructing a second relationship function using the line parameters, the second historical dynamic parameters and gravity acceleration; The first relationship function and the second relationship function are combined and simplified to construct an ice mass calculation model; The dynamic parameters of the insulator strings at both ends of the transmission line after ice coating to be calculated are input into the ice coating mass calculation model to calculate the ice coating mass per unit length of the transmission line; The ice mass per unit length of the transmission line is input into the equivalent thickness calculation model to obtain the equivalent ice thickness of the transmission line.
2. A method for calculating equivalent ice thickness of a transmission line tension tower according to claim 1, characterized in that: The line parameters of the transmission line and the first historical dynamic parameters of the insulator strings at both ends of the transmission line before ice coating are obtained, and the first relationship function is constructed by using the line parameters, the first historical dynamic parameters and the gravity acceleration, which is specifically: Acquire line parameters of the transmission line, wherein the line parameters include the length of the transmission line and the weight per unit length of the transmission line; Acquire first historical dynamic parameters of the insulator strings at both ends of the transmission line before icing, wherein the first historical dynamic parameters include the tension of the two insulator strings before icing, the inclination angles of the two insulator strings before icing, and the weight of the two insulator strings; The first relationship function is constructed by using the line parameters, the first historical dynamic parameters and the gravity acceleration, which is: F a0 cosθ a0 +F b0 cosθ b0 ≈(lω+M a +M b )g Among them, F a0 、F b0 Respectively represent the tension of the two insulator strings before ice coating; θ a0 ,θ b0 Respectively represent the ice-covered forward inclination angles of the two insulator strings; M a 、M b represents the weight of the insulator string; l represents the length of the transmission line; ω represents the weight of the conductor per unit length of the transmission line; g is the acceleration due to gravity.
3. The method for calculating the equivalent ice thickness of a transmission line tension tower according to claim 1, characterized in that: The second historical dynamic parameters of the insulator strings at both ends of the transmission line after ice coating are obtained, and the second relationship function is constructed by using the line parameters, the second historical dynamic parameters and the gravity acceleration, which is specifically: Acquire second historical dynamic parameters of the insulator strings at both ends of the transmission line after ice coating, wherein the second historical dynamic parameters include the tension of the two insulator strings after ice coating, the inclination angles of the two insulator strings after ice coating, and the weights of the two insulator strings; The second relationship function is constructed by using the line parameters, the second historical dynamic parameters and the gravity acceleration, which is: F a1 cosθ a1 +F b1 cosθ b1 ≈(lω+lq i +M a +M b )g Among them, F a1 、F b1 Represents the tension of two insulator strings after ice coating; θ a1 ,θ b1 Indicates the ice-covered forward inclination angle of two insulator strings; M a 、M b represents the weight of the insulator string; l represents the length of the transmission line; ω represents the weight of the conductor per unit length of the transmission line; g is the acceleration due to gravity.
4. The method for calculating the equivalent ice thickness of a transmission line tension tower according to claim 1, characterized in that: The first relationship function and the second relationship function are combined and simplified to construct an ice mass calculation model. The ice mass calculation model is specifically: Among them, q i represents the ice mass per unit length of the transmission line; l represents the length of the transmission line; g is the acceleration of gravity; F a1 、F b1 Represents the tension of two insulator strings after ice coating; θ a1 ,θ b1 Indicates the ice-covered forward tilt angle of two insulator strings; F a0 、F b0 Respectively represent the tension of the two insulator strings before ice coating; θ a0 ,θ b0 They represent the ice-covered forward inclination angles of the two insulator strings respectively.
5. The method for calculating equivalent ice thickness of a transmission line tension tower according to claim 1, characterized in that: The ice mass per unit length of the transmission line is input into the equivalent thickness calculation model to obtain the equivalent ice thickness of the transmission line. The equivalent thickness calculation model is specifically as follows: Where b is the equivalent thickness; q i represents the ice mass per unit length of the transmission line; ρ represents the ice density, ρ=0.9×10 -3 kg / (m·m 2 );D represents the diameter of the transmission line conductor.
6. A system for calculating equivalent ice thickness of a transmission line tension tower, characterized in that: The system is used in a method for calculating equivalent ice thickness of a transmission line tension tower according to any one of claims 1 to 5, and the system comprises: The first module is used to obtain the line parameters of the transmission line and the first historical dynamic parameters of the insulator strings at both ends of the transmission line before ice coating, and to construct a first relationship function using the line parameters, the first historical dynamic parameters and gravity acceleration; The second module is used to obtain the second historical dynamic parameters of the insulator strings at both ends of the transmission line after ice coating, and to construct a second relationship function using the line parameters, the second historical dynamic parameters and the gravity acceleration; The third module is used to combine and simplify the first relationship function and the second relationship function to construct an ice mass calculation model; The fourth module is used to input the dynamic parameters of the insulator strings at both ends of the transmission line after ice coating to be calculated into the ice coating mass calculation model, and calculate the ice coating mass per unit length of the transmission line; The fifth module is used to input the ice mass per unit length of the transmission line into the equivalent thickness calculation model to obtain the equivalent ice thickness of the transmission line.
7. A transmission line tension tower equivalent ice thickness calculation system according to claim 6, characterized in that: The line parameters of the transmission line and the first historical dynamic parameters of the insulator strings at both ends of the transmission line before ice coating are obtained, and the first relationship function is constructed by using the line parameters, the first historical dynamic parameters and the gravity acceleration, which is specifically: Acquire line parameters of the transmission line, wherein the line parameters include the length of the transmission line and the weight per unit length of the transmission line; Acquire first historical dynamic parameters of the insulator strings at both ends of the transmission line before icing, wherein the first historical dynamic parameters include the tension of the two insulator strings before icing, the inclination angles of the two insulator strings before icing, and the weight of the two insulator strings; The first relationship function is constructed by using the line parameters, the first historical dynamic parameters and the gravity acceleration, which is: F a0 cosθ a0 +F b0 cosθ b0 ≈(lω+M a +M b )g Among them, F a0 、F b0 Respectively represent the tension of the two insulator strings before ice coating; θ a0 ,θ b0 Respectively represent the ice-covered forward inclination angles of the two insulator strings; M a 、M b represents the weight of the insulator string; l represents the length of the transmission line; ω represents the weight of the conductor per unit length of the transmission line; g is the acceleration due to gravity.
8. A computer device comprising a system memory and a processor, wherein the system memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.
9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.
10. A computer program product comprising instructions, characterized in that When the instructions are executed by a computer device cluster, the computer device cluster executes the method according to any one of claims 1 to 5.