Method and device for detecting the movement state of a downlead cable

Abstract

The application discloses a method and device for detecting the motion state of a downlead cable. The method comprises the following steps: acquiring the operation parameters of the downlead cable; dividing the operation parameters of the downlead cable into the sub-operation parameters of each cable microelement; calculating the stress sub-information of each cable microelement according to the sub-operation parameters of each cable microelement; determining the motion state of the downlead cable according to the stress sub-information of each cable microelement; and calculating the horizontal tension received by the downlead cable according to the motion state of the downlead cable. The technical scheme provided by the application determines the motion state of the downlead cable through the sub-operation parameters of each cable microelement divided by the operation parameters of the downlead cable, and then calculates the horizontal tension received by the downlead cable, so that the motion state and stress condition of the downlead cable are accurately analyzed, and the downlead cable can be adjusted to improve the safety of the power grid.

Description

Technical Field

[0001] This invention relates to the field of power cable technology, and in particular to a method and apparatus for detecting the motion state of a downleading cable. Background Technology

[0002] With societal development, the power system plays an increasingly vital role in national economic development, making the safe and stable operation of the power grid crucial. In practical applications, bypass cables of transmission lines may be affected by forces such as gravity, wind, tension, and electromagnetic forces, causing relative displacement and resulting in frictional damage at the connection between the cable and the cable clamp, thus impacting power grid safety. Therefore, a method for detecting the movement of these cables is needed. Summary of the Invention

[0003] This invention provides a method and apparatus for detecting the motion state of a downlead cable, in order to solve the problem that the downlead cable may be damaged by friction due to external forces, which may affect the safety of the power grid.

[0004] According to one aspect of the present invention, a method for detecting the motion state of a downlead cable is provided, comprising:

[0005] Obtain the operating parameters of the downlead cable;

[0006] The operating parameters of the downlead cable are divided into sub-operating parameters of each cable micro-element;

[0007] Based on the sub-operational parameters of each cable micro-element, calculate the force sub-information of each cable micro-element;

[0008] The motion state of the downlead cable is determined based on the force information of each cable micro-element.

[0009] Calculate the horizontal tension force on the down cable based on its motion state.

[0010] Optionally, the step of dividing the operating parameters of the downlead cable into sub-operating parameters of each cable micro-element includes:

[0011] Differentiate the operating parameters of the downlead cable to obtain the sub-operating parameters of each cable element.

[0012] Optionally, the step of calculating the force sub-information of each cable micro-element based on its sub-operational parameters includes:

[0013] Based on the sub-operational parameters of each cable micro-element, calculate the wind force, electromagnetic force, resistance, and tension information experienced by the cable micro-element.

[0014] Optionally, determining the motion state of the downlead cable based on the force information of each cable micro-element includes:

[0015] Based on the force information of each cable micro-element, calculate the displacement information of each cable micro-element;

[0016] The motion state of the downlead cable is determined based on the displacement information of each cable element.

[0017] Optionally, calculating the horizontal tension on the down cable based on the motion state of the down cable includes:

[0018] Calculate the tension and gravity acting on the down cable based on its motion state;

[0019] Calculate the horizontal tension force on the down cable based on the tension and gravity acting on it.

[0020] Optionally, the horizontal tension is calculated using the following formula:

[0021]

[0022] Among them, F H The horizontal tension is M, the mass of the downlead cable is g, the proportionality coefficient is n, the number of cable micro-elements is n-1, and α is the angle between the (n-1)th cable micro-element and the nth cable micro-element.

[0023] Optionally, after calculating the horizontal tensile force on the down cable based on the tension and gravity acting on the down cable, the method further includes:

[0024] Calculate the horizontal tension on the cable clamp based on the horizontal tension on the down-lead cable;

[0025] The horizontal tension force on the cable clamp is equal in magnitude but opposite in direction to the horizontal tension force on the downlead cable.

[0026] Optionally, after calculating the horizontal tension on the down cable based on the motion state of the down cable, the method further includes:

[0027] The horizontal tension force on the down cable is compared with a first threshold to obtain a first comparison result;

[0028] Based on the first comparison result, determine whether to adjust the downlead cable and the cable clamp.

[0029] Optionally, determining whether to adjust the downlead cable and the cable clamp based on the first comparison result includes:

[0030] When the horizontal tension is greater than or equal to the first threshold, the downlead cable and the cable clamp are adjusted.

[0031] When the horizontal tension is less than the first threshold, the downlead cable and the cable clamp are not adjusted.

[0032] Secondly, embodiments of the present invention provide a motion state detection device for a downlead cable, comprising:

[0033] The acquisition module is used to acquire the operating parameters of the downlead cable;

[0034] The acquisition module is also used to divide the operating parameters of the downlead cable into sub-operating parameters of each cable micro-element;

[0035] The calculation module is used to calculate the force information of each cable micro-element based on the sub-operation parameters of each cable micro-element.

[0036] The confirmation module is used to determine the motion state of the downlead cable based on the force information of each cable micro-element.

[0037] The calculation module is also used to calculate the horizontal tension force on the down cable based on the motion state of the down cable.

[0038] The motion state detection method for downlead cables in this invention acquires the operating parameters of the downlead cable and divides these parameters into sub-operating parameters for each cable micro-element. Based on these sub-operating parameters, the force information of each cable micro-element is calculated. The motion state of the downlead cable is determined based on this force information. The horizontal tension on the downlead cable is calculated based on its motion state. By acquiring the operating parameters of the downlead cable to determine its motion state and calculate the horizontal tension, accurate analysis of the downlead cable's motion state and force conditions is achieved, enabling adjustments to the downlead cable to improve power grid safety.

[0039] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a flowchart of a motion state detection method for a downlead cable provided in an embodiment of the present invention;

[0042] Figure 2 This is a flowchart of another motion state detection method for a downlead cable provided in an embodiment of the present invention;

[0043] Figure 3 This is a power grid circuit diagram provided in an embodiment of the present invention;

[0044] Figure 4 This is a flowchart of another motion state detection method for a downlead cable provided in an embodiment of the present invention;

[0045] Figure 5 This is a flowchart of another motion state detection method for a downlead cable provided in an embodiment of the present invention;

[0046] Figure 6 This is a flowchart of another motion state detection method for a downlead cable provided in an embodiment of the present invention;

[0047] Figure 7 This is a flowchart of another motion state detection method for a downlead cable provided in an embodiment of the present invention;

[0048] Figure 8 This is a flowchart of another motion state detection method for a downlead cable provided in an embodiment of the present invention;

[0049] Figure 9 This is a flowchart of another motion state detection method for a downlead cable provided in an embodiment of the present invention;

[0050] Figure 10 This is a schematic diagram of the structure of a motion state detection device for a downlead cable provided in an embodiment of the present invention. Detailed Implementation

[0051] 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.

[0052] 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.

[0053] Figure 1 This is a flowchart of a motion state detection method for a downlead cable provided in an embodiment of the present invention. See also... Figure 1 The motion state detection method for downlead cables provided in this embodiment of the invention includes:

[0054] S101. Obtain the operating parameters of the downlead cable.

[0055] Specifically, the downlead cable is subjected to various forces during actual operation. By obtaining the operating parameters of the downlead cable, the forces acting on the downlead cable can be calculated, thereby determining the motion state of the downlead cable.

[0056] S102. Divide the operating parameters of the down-lead cable into sub-operating parameters of each cable micro-element.

[0057] Specifically, because different parts of the downlead cable experience different stresses, it is difficult to obtain accurate data by analyzing the entire cable. Therefore, the downlead cable can be divided into multiple cable micro-elements, and then the operating parameters of the downlead cable can be divided into sub-operating parameters for each cable micro-element. By analyzing the cable micro-elements, the motion state of the entire cable can be obtained.

[0058] S103. Calculate the force information of each cable micro-element based on its sub-operational parameters.

[0059] Specifically, based on the sub-operational parameters of each cable micro-element, the force information of each cable micro-element can be calculated, thereby determining the motion state of each cable micro-element. By analyzing the motion state of each cable micro-element, the overall motion state of the cable can be confirmed.

[0060] S104. Determine the motion state of the downlead cable based on the force information of each cable micro-element.

[0061] Specifically, by analyzing the force information of each cable element, the overall motion state of the cable can be determined, and then the motion model of the downlead cable can be calculated. Analyzing the motion model allows us to determine the motion state of the downlead cable under different conditions.

[0062] S105. Calculate the horizontal tension force on the down cable based on the motion state of the down cable.

[0063] Specifically, based on the current movement state of the downlead cable, the horizontal tension it experiences can be calculated. Downlead cables are typically secured with cable clamps. If the horizontal tension is too high, it may cause frictional damage at the connection between the downlead cable and the cable clamp, affecting power grid safety. In this case, the horizontal tension on the downlead cable can be adjusted by replacing the downlead cable and cable clamp, or by adjusting the parameters of the downlead cable, thereby improving power grid safety.

[0064] For example, when analyzing the motion state of a downlead cable, the operating parameters of the downlead cable are first obtained, and the downlead cable is divided into multiple cable micro-elements. Based on these cable micro-elements, the operating parameters of the downlead cable are further divided into sub-operating parameters for each cable micro-element. Based on the sub-operating parameters of each cable micro-element, the force information of each cable micro-element is calculated. By analyzing the force information of each cable micro-element, the overall motion state of the cable is confirmed, and then the motion model of the downlead cable is calculated. Based on the current motion state of the downlead cable, the horizontal tension currently acting on the downlead cable is calculated. If the horizontal tension is large, it may cause frictional damage at the connection between the downlead cable and the cable clamp, affecting the safety of the power grid. In this case, the horizontal tension acting on the downlead cable can be adjusted by replacing the downlead cable and the cable clamp, or by adjusting the parameters of the downlead cable, to improve the safety of the power grid.

[0065] The motion state detection method for downlead cables provided in this embodiment divides the acquired operating parameters of the downlead cable into sub-operating parameters of each cable micro-element. Based on the sub-operating parameters of each cable micro-element, the force information of each cable micro-element is calculated, thereby judging the motion state of the downlead cable and calculating the horizontal tension on the downlead cable. This achieves accurate analysis of the motion state and force of the downlead cable, and allows for adjustment of the downlead cable to improve the safety of the power grid.

[0066] Optional, Figure 2 This is a flowchart of another method for detecting the motion state of a downlead cable provided in an embodiment of the present invention. Figure 3 This is a power grid circuit diagram provided in an embodiment of the present invention. Based on the above embodiment, see [link to other embodiments]. Figure 2 and Figure 3 The motion state detection method for downlead cables provided in this embodiment of the invention includes:

[0067] S101. Obtain the operating parameters of the downlead cable.

[0068] S201. Differentiate the operating parameters of the down-lead cable to obtain the sub-operating parameters of each cable element.

[0069] For details, see Figure 3 The downlead cable 40 is connected to the transmission line 20 via cable clamp 10. Because different parts of the downlead cable 40 experience different stresses, analyzing the entire cable makes it difficult to obtain accurate data. A chain-model analysis method can be used, dividing the entire downlead cable 40 into a finite number of cable micro-elements 30. By analyzing each cable micro-element 30 and integrating their motion states, the motion state of the entire cable can be obtained. Differentiating the operating parameters of the downlead cable yields the sub-operating parameters of each cable micro-element, allowing for the calculation of the stress information of each cable micro-element. This setup combines the actual operating state of each cable micro-element to analyze the downlead cable, improving the accuracy of motion state detection.

[0070] S103. Calculate the force information of each cable micro-element based on its sub-operational parameters.

[0071] S104. Determine the motion state of the downlead cable based on the force information of each cable micro-element.

[0072] S105. Calculate the horizontal tension force on the down cable based on the motion state of the down cable.

[0073] Optional, Figure 4 This is a flowchart of another method for detecting the motion state of a downleading cable provided in an embodiment of the present invention. Based on the above embodiments, see... Figure 4 The motion state detection method for downlead cables provided in this embodiment of the invention includes:

[0074] S101. Obtain the operating parameters of the downlead cable.

[0075] S201. Differentiate the operating parameters of the down-lead cable to obtain the sub-operating parameters of each cable element.

[0076] S301. Based on the sub-operational parameters of each cable micro-element, calculate the wind force information, electromagnetic force information, resistance information, and tensile force information experienced by the cable micro-element.

[0077] Specifically, the forces acting on a cable micro-element can include wind force, electromagnetic force, drag, and tension. By using the sub-operational parameters of each cable micro-element, the force information of the cable micro-element can be calculated.

[0078] The electromagnetic force on a cable element can be calculated using the following formula:

[0079] F mi =L i I i B i (2)

[0080] Among them, F mi L represents the electromagnetic force acting on a small element of the cable. i Let I be the length of the cable element. i B is the current flowing through the infinitesimal element of the cable. i This represents the magnetic field at the location of the cable element.

[0081] The resistance information of the cable element can be calculated using the following formula:

[0082]

[0083] Among them, F ai C represents the air resistance experienced by the cable element. D R is the air drag coefficient. i Let ρ be the radius of the cable element, ρ be the air density, and v be the radius of the cable element. i The speed of the cable element.

[0084] The wind force information experienced by the cable element can be calculated using the following formula:

[0085]

[0086] Among them, F fi Let be the wind force acting on the cable element, r be the air density, v be the wind speed, s be the cross-sectional area of ​​the interaction between the wind and the down-leading cable, and g be the proportionality coefficient.

[0087] The tensile force on a cable element can be calculated using the following formula:

[0088]

[0089]

[0090] Among them, F 1i F is the upward tensile force acting on the cable element. 2i Let n be the downward tension force on the cable element, n be the number of cable elements, a1 be the vertical angle between the current cable element and the previous cable element, and a2 be the vertical angle between the current cable element and the next cable element.

[0091] By calculating the force information of each cable micro-element, such as wind force, electromagnetic force, resistance, and tension, the motion of each cable micro-element can be analyzed, thereby determining the motion of the downlead cable. This setup allows for analysis of the motion of the downlead cable based on its actual operating data, further improving the accuracy of motion state detection.

[0092] S104. Determine the motion state of the downlead cable based on the force information of each cable micro-element.

[0093] S105. Calculate the horizontal tension force on the down cable based on the motion state of the down cable.

[0094] Optional, Figure 5 This is a flowchart of another method for detecting the motion state of a downleading cable provided in an embodiment of the present invention. Based on the above embodiments, see... Figure 5 The motion state detection method for downlead cables provided in this embodiment of the invention includes:

[0095] S101. Obtain the operating parameters of the downlead cable.

[0096] S102. Divide the operating parameters of the down-lead cable into sub-operating parameters of each cable micro-element.

[0097] S103. Calculate the force information of each cable micro-element based on its sub-operational parameters.

[0098] S401. Calculate the displacement information of each cable micro-element based on the force information of each cable micro-element.

[0099] Specifically, based on the calculated wind force, electromagnetic force, drag, and tension information of each cable micro-element, the displacement information of each cable micro-element can be calculated using the following formula:

[0100] ma i =F mi +F ai +F fi +F 1i +F 2i (7)

[0101]

[0102]

[0103] Where m is the mass of the cable element, a iLet v0 be the acceleration caused by the resultant force acting on the cable element, v0 be the initial velocity of the cable element, and x be the displacement of the cable element. Using formulas (7), (8), and (9), the displacement information of each cable element can be calculated, thereby determining the motion state of the down-leading cable.

[0104] S402. Determine the motion state of the downlead cable based on the displacement information of each cable micro-element.

[0105] Specifically, based on the displacement information of each cable element obtained through calculation, the motion equation of the down-lead cable can be calculated and a motion model can be established. By analyzing the motion model, the motion state of the down-lead cable under different conditions can be confirmed. This setup can further improve the accuracy of motion state detection.

[0106] S105. Calculate the horizontal tension force on the down cable based on the motion state of the down cable.

[0107] Optional, Figure 6 This is a flowchart of another method for detecting the motion state of a downleading cable provided in an embodiment of the present invention. Based on the above embodiments, see... Figure 6 The motion state detection method for downlead cables provided in this embodiment of the invention includes:

[0108] S101. Obtain the operating parameters of the downlead cable.

[0109] S102. Divide the operating parameters of the down-lead cable into sub-operating parameters of each cable micro-element.

[0110] S103. Calculate the force information of each cable micro-element based on its sub-operational parameters.

[0111] S104. Determine the motion state of the downlead cable based on the force information of each cable micro-element.

[0112] S501. Calculate the tension and gravity acting on the down-lead cable based on its motion state.

[0113] Specifically, by analyzing the motion equation of the down-lead cable, the tension and gravity acting on the down-lead cable under its current motion state can be calculated.

[0114] The tensile force and gravity acting on the down-lead cable can be calculated using the following formulas:

[0115]

[0116]

[0117] Among them, F 2nLet α be the tension force on the nth cable element, α be the angle between the (n-1)th and nth cable elements, G be the gravity of the downlead cable, and M be the mass of the downlead cable. The tension force on the cable element can be decomposed into gravity in the vertical direction and tension in the horizontal direction. By calculating the tension and gravity on the downlead cable, the horizontal tension force on the downlead cable can be calculated.

[0118] S502. Calculate the horizontal tension force on the down-lead cable based on the tension and gravity acting on it.

[0119] Specifically, the horizontal tension on the down-lead cable can be calculated using the following formula:

[0120]

[0121] Among them, F H Let M be the horizontal tension, g be the mass of the downlead cable, n be the number of cable micro-elements, and α be the angle between the (n-1)th and nth cable micro-elements. The horizontal tension on the downlead cable is the horizontal component of the resultant force on the downlead cable. Based on the horizontal tension on the downlead cable, the magnitude of the frictional force and the displacement between the downlead cable and the cable clamp can be determined, thereby determining whether the downlead cable needs adjustment. This configuration can improve the safety of the power grid.

[0122] Optional, Figure 7 This is a flowchart of another method for detecting the motion state of a downleading cable provided in an embodiment of the present invention. Based on the above embodiments, see... Figure 7 The motion state detection method for downlead cables provided in this embodiment of the invention includes:

[0123] S101. Obtain the operating parameters of the downlead cable.

[0124] S102. Divide the operating parameters of the down-lead cable into sub-operating parameters of each cable micro-element.

[0125] S103. Calculate the force information of each cable micro-element based on its sub-operational parameters.

[0126] S104. Determine the motion state of the downlead cable based on the force information of each cable micro-element.

[0127] S501. Calculate the tension and gravity acting on the down-lead cable based on its motion state.

[0128] S502. Calculate the horizontal tension force on the down-lead cable based on the tension and gravity acting on it.

[0129] S601. Calculate the horizontal tension of the cable clamp based on the horizontal tension of the down-leading cable.

[0130] The horizontal tension force on the cable clamp is equal in magnitude but opposite in direction to the horizontal tension force on the downlead cable.

[0131] Specifically, the horizontal forces interact between the down-lead cable and the cable clamp, with the horizontal tension on the cable clamp being equal in magnitude but opposite in direction to the horizontal tension on the down-lead cable. This configuration allows for monitoring of the stress on the cable clamp, enabling determination of whether adjustment is necessary and improving power grid safety.

[0132] Optional, Figure 8 This is a flowchart of another method for detecting the motion state of a downleading cable provided in an embodiment of the present invention. Based on the above embodiments, see... Figure 8 The motion state detection method for downlead cables provided in this embodiment of the invention includes:

[0133] S101. Obtain the operating parameters of the downlead cable.

[0134] S102. Divide the operating parameters of the down-lead cable into sub-operating parameters of each cable micro-element.

[0135] S103. Calculate the force information of each cable micro-element based on its sub-operational parameters.

[0136] S104. Determine the motion state of the downlead cable based on the force information of each cable micro-element.

[0137] S501. Calculate the tension and gravity acting on the down-lead cable based on its motion state.

[0138] S502. Calculate the horizontal tension force on the down-lead cable based on the tension and gravity acting on it.

[0139] S601. Calculate the horizontal tension of the cable clamp based on the horizontal tension of the down-leading cable.

[0140] S701. The horizontal tension force on the down-lead cable is compared with the first threshold to obtain the first comparison result.

[0141] Specifically, the first threshold is the maximum pressure that the cable clamp and the down cable can withstand under normal operating conditions. The horizontal tension on the down cable is compared with the first threshold, and the result of the comparison can determine whether the down cable can maintain normal operation under the current stress condition.

[0142] S702. Based on the first comparison result, determine whether to adjust the downlead cable and the cable clamp.

[0143] Specifically, when the horizontal tension on the downlead cable is greater than or equal to the first threshold, the excessive horizontal tension may cause frictional damage at the connection between the downlead cable and the cable clamp, affecting power grid safety. Adjustments can be made to the downlead cable and the cable clamp to reduce the horizontal tension on the downlead cable. When the horizontal tension on the downlead cable is less than the first threshold, the working environment of the downlead cable is safe, and no adjustment is required. This configuration further improves power grid safety.

[0144] Optional, Figure 9 This is a flowchart of another method for detecting the motion state of a downleading cable provided in an embodiment of the present invention. Based on the above embodiments, see... Figure 9 The motion state detection method for downlead cables provided in this embodiment of the invention includes:

[0145] S101. Obtain the operating parameters of the downlead cable.

[0146] S102. Divide the operating parameters of the down-lead cable into sub-operating parameters of each cable micro-element.

[0147] S103. Calculate the force information of each cable micro-element based on its sub-operational parameters.

[0148] S104. Determine the motion state of the downlead cable based on the force information of each cable micro-element.

[0149] S501. Calculate the tension and gravity acting on the down-lead cable based on its motion state.

[0150] S502. Calculate the horizontal tension force on the down-lead cable based on the tension and gravity acting on it.

[0151] S601. Calculate the horizontal tension of the cable clamp based on the horizontal tension of the down-leading cable.

[0152] S701. The horizontal tension force on the down-lead cable is compared with the first threshold to obtain the first comparison result.

[0153] S801. When the horizontal tension is greater than or equal to the first threshold, the downlead cable and the cable clamp are adjusted.

[0154] Specifically, when the horizontal tension is greater than or equal to the first threshold, the horizontal tension is relatively large, which may cause displacement between the cable and the cable clamp. This can lead to frictional damage at the connection between the down-lead cable and the cable clamp, affecting power grid safety. In this case, adjustments need to be made to the down-lead cable and cable clamp, such as replacing the down-lead cable and cable clamp, or adjusting the parameters of the down-lead cable, to improve power grid safety.

[0155] S802. When the horizontal tension is less than the first threshold, the downlead cable and the cable clamp are not adjusted.

[0156] Specifically, when the horizontal tension is less than the first threshold, the connection between the down cable and the cable clamp is stable, and the down cable can operate normally without adjustment.

[0157] For example, when analyzing the motion state of a downleading cable, the operating parameters of the downleading cable are first obtained, and the cable is divided into a finite number of cable micro-elements. Based on these micro-elements, the operating parameters are differentiated to obtain sub-operating parameters for each micro-element. Based on these sub-operating parameters, the wind force, electromagnetic force, drag, and tension information experienced by each micro-element are calculated. Based on the calculated wind force, electromagnetic force, drag, and tension information, the displacement information of each micro-element is calculated, thereby deriving the motion equation of the downleading cable and establishing a motion model. The motion of each micro-element is analyzed to confirm the overall motion state of the cable, and the motion model of the downleading cable is then calculated. By analyzing the motion model, the motion state of the downleading cable under different conditions is confirmed.

[0158] Based on the current motion state of the downlead cable, the motion equation of the downlead cable is analyzed to calculate the tension and gravity acting on it under this state, and then the horizontal tension acting on the downlead cable and cable clamp is calculated. When the horizontal tension is greater than or equal to the first threshold, the horizontal tension is large, which may cause displacement between the cable and the cable clamp, resulting in frictional damage at the connection between the downlead cable and the cable clamp, affecting power grid safety. In this case, adjustments to the downlead cable and cable clamp are necessary, such as replacing them or adjusting the parameters of the downlead cable, to improve power grid safety. When the horizontal tension is less than the first threshold, the connection between the downlead cable and the cable clamp is stable, and the downlead cable can operate normally without adjustment.

[0159] Optional, Figure 10 This is a schematic diagram of a motion state detection device for a downlead cable provided in an embodiment of the present invention. Based on the above embodiment, see... Figure 10 The motion state detection device 10 for the downlead cable provided in this embodiment of the invention includes:

[0160] Module 11 is used to acquire the operating parameters of the downlead cable;

[0161] The acquisition module 11 is further configured to divide the operating parameters of the downlead cable into sub-operating parameters of each cable micro-element;

[0162] The calculation module 12 is used to calculate the force information of each cable micro-element based on the sub-operation parameters of each cable micro-element.

[0163] The confirmation module 13 is used to determine the motion state of the downlead cable based on the force information of each cable micro-element.

[0164] The calculation module 12 is also used to calculate the horizontal tension force on the down cable based on the motion state of the down cable.

[0165] The motion state detection device for downlead cables provided in this invention acquires the operating parameters of the downlead cable and divides these parameters into sub-operating parameters for each cable micro-element. Based on these sub-operating parameters, the force information of each cable micro-element is calculated. The motion state of the downlead cable is determined based on this force information. The horizontal tension on the downlead cable is calculated based on its motion state. By acquiring the operating parameters of the downlead cable to determine its motion state and calculate the horizontal tension, the device accurately analyzes the motion state and force conditions of the downlead cable, thereby enabling adjustments to the downlead cable to improve power grid safety.

[0166] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0167] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for detecting the motion state of a downleading cable, characterized in that, include: Obtain the operating parameters of the downlead cable; The operating parameters of the downlead cable are divided into sub-operating parameters of each cable micro-element; Based on the sub-operational parameters of each cable micro-element, calculate the force sub-information of each cable micro-element; The motion state of the downlead cable is determined based on the force information of each cable micro-element. Calculate the horizontal tension force on the down cable based on its motion state; The process of dividing the operating parameters of the downlead cable into sub-operating parameters for each cable micro-element includes: Differentiate the operating parameters of the downlead cable to obtain the sub-operating parameters of each cable element; The step of calculating the force sub-information of each cable micro-element based on its sub-operational parameters includes: Based on the sub-operational parameters of each cable micro-element, calculate the wind force, electromagnetic force, resistance, and tensile force information experienced by the cable micro-element. Determining the motion state of the downlead cable based on the force information of each cable micro-element includes: Based on the force information of each cable micro-element, calculate the displacement information of each cable micro-element; The motion state of the downlead cable is determined based on the displacement information of each cable micro-element. The step of calculating the horizontal tension on the down cable based on the motion state of the down cable includes: Calculate the tension and gravity acting on the down cable based on its motion state; Calculate the horizontal tension force on the down cable based on the tension and gravity acting on it. The horizontal tensile force is calculated using the following formula: ； in, The horizontal tension is M, the mass of the downlead cable is g, the proportionality coefficient is n, the number of cable micro-elements is n-1, and α is the angle between the (n-1)th cable micro-element and the nth cable micro-element. After calculating the horizontal tension on the down cable based on its motion state, the method further includes: The horizontal tension force on the down cable is compared with a first threshold to obtain a first comparison result; Based on the first comparison result, determine whether to adjust the downlead cable and cable clamp.

2. The motion state detection method according to claim 1, characterized in that, After calculating the horizontal tensile force on the down cable based on the tension and gravity acting on the down cable, the method further includes: Calculate the horizontal tension on the cable clamp based on the horizontal tension on the down-lead cable; The horizontal tension force on the cable clamp is equal in magnitude but opposite in direction to the horizontal tension force on the downlead cable.

3. The motion state detection method according to claim 1, characterized in that, The step of determining whether to adjust the downlead cable and the cable clamp based on the first comparison result includes: When the horizontal tension is greater than or equal to the first threshold, the downlead cable and the cable clamp are adjusted. When the horizontal tension is less than the first threshold, the downlead cable and the cable clamp are not adjusted.

4. A motion state detection device for a downlead cable, comprising: The acquisition module is used to acquire the operating parameters of the downlead cable; The acquisition module is also used to divide the operating parameters of the downlead cable into sub-operating parameters of each cable micro-element; The calculation module is used to calculate the force information of each cable micro-element based on the sub-operation parameters of each cable micro-element. The confirmation module is used to determine the motion state of the downlead cable based on the force information of each cable micro-element. The calculation module is also used to calculate the horizontal tension force on the down cable based on the motion state of the down cable; The acquisition module is specifically used for: Differentiate the operating parameters of the downlead cable to obtain the sub-operating parameters of each cable element; The computing module is specifically used for: Based on the sub-operational parameters of each cable micro-element, calculate the wind force, electromagnetic force, resistance, and tensile force information experienced by the cable micro-element. The confirmation module is specifically used for: Based on the force information of each cable micro-element, calculate the displacement information of each cable micro-element; The motion state of the downlead cable is determined based on the displacement information of each cable micro-element. The computing module is specifically used for: Calculate the tension and gravity acting on the down cable based on its motion state; Calculate the horizontal tension force on the down cable based on the tension and gravity acting on it. The horizontal tensile force is calculated using the following formula: ； in, The horizontal tension is M, the mass of the downlead cable is g, the proportionality coefficient is n, the number of cable micro-elements is n-1, and α is the angle between the (n-1)th cable micro-element and the nth cable micro-element. After calculating the horizontal tension on the down cable based on the motion state of the down cable, the device is further configured to: The horizontal tension force on the down cable is compared with a first threshold to obtain a first comparison result; Based on the first comparison result, determine whether to adjust the downlead cable and cable clamp.

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