Method, system and equipment for erecting ADSS (all-dielectric self-supporting optical cable) on power transmission line and medium

Abstract

The invention discloses a method, system and equipment for erecting an ADSS (all-dielectric self-supporting) optical cable on a power transmission line and a medium, and relates to the technical field of electric power communication, and the method comprises the steps: building a structure model for erecting power transmission lines at two sides of a tower in a coordinate system, and non-uniformly dividing the arc-shaped power transmission lines at two sides into a plurality of target line segments according to a fitting precision value; based on the calculated equivalent radius of each target line segment, calculating an electric field coefficient of each target line segment in a two-dimensional plane coordinate system along a coordinate axis direction; mapping the electric field coefficient of each target line segment in the two-dimensional plane into a three-dimensional space, and fitting to obtain an induced electric field around the erected tower; determining the minimum electric field effective value as a target suspension point based on the induced electric field, and erecting an ADSS optical cable in a preset mode; the problems that the construction efficiency is low, the safety risk is high, the construction process is complex and limited by terrains in the erecting process, and stable operation of an electric power communication system is affected by optical cable damage are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power communication, more particularly, it relates to an ADSS optical cable erection method, system, device and medium on a power transmission line. BACKGROUND

[0002] With the rapid development of power communication technology, optical fiber communication has become the core component of the power system communication network due to its high bandwidth, low loss, and anti-electromagnetic interference advantages; as an important power communication optical cable, the all-dielectric self-supporting optical cable (ADSS optical cable) is widely used in the communication network of the power system; however, the erection of the ADSS optical cable still faces many challenges, especially in complex terrain (such as railways, highways, rivers, etc.), the traditional erection of the ADSS optical cable has the following problems: 1. Low construction efficiency and high safety risk: the traditional erection requires two times of flying out of the line by the operating personnel for installing and removing the fixed pulley, and the average construction time is as high as 6.1h / km, which is 2.65 times of the ground dragging construction, and the high-altitude operating personnel need to be suspended on the power transmission line for a long time, facing high risks such as falling and electric shock, and there are many uncontrollable factors in the construction process; 2. Complex construction process and limited by terrain: the traditional method needs to install multiple fixed pulleys on the conductor, and the optical cable is pulled through the lead line, which is complicated and increases the operation difficulty; at the same time, in the impassable obstacle areas such as railways, highways, and rivers, the traditional ground dragging method cannot be implemented, and the traditional flying out of the line becomes the only choice, but this method has high requirements for the terrain and limited scope of application; 3. Random selection of ADSS optical cable hanging points: since the ADSS optical cable often operates near high-voltage power transmission lines, it is surrounded by strong electric fields, and under the action of the induced electric field, the "dry arc" phenomenon occurs, which causes electric corrosion, and the ADSS optical cable itself is damaged by the electric corrosion, and the electric corrosion eventually leads to the rupture of the optical cable protection sleeve and even the cable breakage, which seriously affects the smooth operation of the power communication system.

[0003] Therefore, the present application is proposed. SUMMARY

[0004] The purpose of the present application is to provide an ADSS optical cable erection method, system, device and medium on a power transmission line to solve the problems in the background art.

[0005] The above technical purpose of the present application is achieved by the following technical scheme: In a first aspect, the present application provides an ADSS optical cable erection method on a power transmission line, comprising the following specific steps: establish a structure model of the power transmission lines on both sides of the erected tower in a preset coordinate system, the structure model representing the height of any point of the power transmission lines on both sides relative to the ground; Based on the structure model, the two sides of the arc-shaped power transmission lines are non-uniformly divided into a plurality of target line segments according to the fitting accuracy value; Based on the calculated equivalent radii of the target line segments, the electric field coefficients of the target line segments in the two-dimensional plane coordinate system along the coordinate axis direction are calculated; The electric field coefficients of the target line segments in the two-dimensional plane are mapped to the three-dimensional space, and the induced electric field around the erected tower is fitted; Based on the induced electric field, the electric field effective values of the various to-be-suspended points on the erected tower are obtained, the target suspension point with the minimum electric field effective value is determined, and the ADSS optical cable is erected through a preset mode.

[0006] On the basis of the technical scheme, the application can also be improved as follows.

[0007] Further, the above-mentioned erection of the ADSS optical cable through the preset mode is specifically as follows: Auxiliary pulleys are installed at the corresponding positions of the erected tower A and the erected tower B, and the ADSS optical cable is stretched to be in transmission connection with the auxiliary pulley of the erected tower A; The suspension rope and the control rope are sleeved with a moving pulley, the suspension rope is overlapped on the power transmission conductor between the erected tower A and the erected tower B, and the ADSS optical cable is overlapped with the moving pulley, and the moving pulley is an open pulley; The moving pulley is moved close to the power transmission conductor through the suspension rope at the obstacle between the erected tower A and the erected tower B through the carrying lead line, and the moving pulley is fixed through the suspension rope and the control rope; The ADSS optical cable is pulled from the erected tower A to the erected tower B through the carrying lead line, and the ADSS optical cable is in transmission connection with the auxiliary pulley of the erected tower B; The ADSS optical cable is pulled at the erected tower B and the sag is made to reach a preset condition, the ADSS optical cable is fixed at the target suspension points on the erected tower A and the erected tower B, the moving pulley is moved away from the power transmission conductor through the control rope and the suspension rope, the moving pulley is separated from the ADSS optical cable, and the optical cable erection is completed.

[0008] Further, the above-mentioned structure model of the power transmission lines on both sides of the erected tower is specifically as follows: ; In the formula, represents the specific load, N / m·mm 2 ; represents the horizontal stress of the power transmission line, N / mm 2 , represents the sag of the erected tower on the X axis negative half axis side of the corresponding coordinate system, represents the suspension height of the power transmission line on the erected tower, is the value of the X axis in the coordinate system, and represents the horizontal distance from the erected tower; represents the sag of the erected tower on the X axis positive half axis side of the corresponding coordinate system, represents the horizontal distance from the erected tower at low height.

[0009] Further, the fitting accuracy value divides the two sides of the arc-shaped power transmission line into a plurality of target line segments unevenly, specifically: For any power transmission line on the two sides, the power transmission line is divided at equal intervals; For any segment divided at equal intervals, a true function of the segment is obtained through a structural model, and a first function of a straight line connecting the two ends of the segment is fitted; The fitting accuracy value is calculated through the true function of each segment and the corresponding first function, and if the fitting accuracy value exceeds the threshold value, the division is performed again until the fitting accuracy value of each segment after division does not exceed the threshold value; In each segment of the line whose fitting accuracy value does not exceed the threshold value, the true function is replaced by the first function in each segment, and each segment represented by the first function is determined as a target line segment.

[0010] Further, the fitting accuracy value is specifically: ; In the formula, represents the horizontal coordinate interval of any segment divided at equal intervals, and , represents a first function formed by a straight line connecting the end points of the two ends of the segment, is a function of the structural model corresponding to the horizontal coordinate interval , represents the fitting accuracy value of the segment.

[0011] Further, the equivalent radius of each target line segment is specifically: ; In the formula, represents the equivalent radius of the target line segment, represents the radius of a sub-conductor in the target line segment, represents the number of sub-conductors in the target line segment, The split distance of the target line segment represents the distance from the center of each sub-conductor to the center of the circle formed by the sub-conductor distribution, i.e., the radius of the sub-conductor distribution circle;

[0012] The electric field coefficient of each target line segment in the coordinate axis direction in the two-dimensional plane coordinate system, specifically: ; In the formula, represents the electric field coefficient of the target line segment with a length of in the two-dimensional plane coordinate system along the axis, represents the electric field coefficient of the target line segment with a length of in the two-dimensional plane coordinate system along the axis, and are the coordinate values of the matching points of the target line segment with a length of in the plane coordinate system , represents the dielectric constant of the dielectric, is the length of the target line segment, and are the coordinate values of the two ends of the target line segment in the plane coordinate system along the axis, and are the distances from the matching points

[0013] to the two end points of the target line segment. ; In the formula, ; In the formula, is the electric field effective value at the coordinate in the coordinate system where the structure model is located, and represent the electric field components in the X-Y-Z three directions at the coordinate in the coordinate system where the structure model is located, and represent the electric field coefficients corresponding to the three directions at the coordinate ,

[0014] In a second aspect, the application provides a system for erecting an ADSS optical cable on a power transmission line, applied to the method for erecting the ADSS optical cable on the power transmission line according to any one of the first aspect, comprising: a model construction module, configured to establish a structure model of the power transmission lines on both sides of the erected tower in a preset coordinate system, the structure model representing the height of any point of the power transmission lines on both sides relative to the ground; a line segment division module, configured to non-uniformly divide the arc-shaped power transmission lines on both sides into a plurality of target line segments according to the fitting accuracy value based on the structure model; an electric field coefficient calculation module, configured to calculate the electric field coefficients of the target line segments in the two-dimensional plane coordinate system along the coordinate axis direction based on the calculated equivalent radii of the target line segments; an induced electric field fitting module, configured to map the electric field coefficients of the target line segments in the two-dimensional plane to the three-dimensional space, and fit the induced electric field around the erected tower; a suspension point determination module, configured to obtain the electric field effective values of the to-be-suspended points on the erected tower based on the induced electric field, determine the target suspension point with the minimum electric field effective value, and erect the ADSS optical cable through a preset mode.

[0015] In a third aspect, the application provides an electronic device, comprising at least one processor, at least one memory and a data bus; wherein the processor and the memory complete mutual communication through the data bus; the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the method for erecting the ADSS optical cable on the power transmission line according to any one of the first aspect.

[0016] In a fourth aspect, the application provides a non-transitory computer readable storage medium, which stores computer instructions, and the computer instructions make the computer execute the method for erecting the ADSS optical cable on the power transmission line according to any one of the first aspect.

[0017] Compared with the prior art, the application has at least the following beneficial effects: In the application, the sag of the power transmission lines on both sides is considered through the three-dimensional electric field calculation model of the power transmission lines, a parabolic equation is adopted to establish a power transmission line model, the power transmission lines are discretely processed based on fitting accuracy through non-uniform division, a separate plane coordinate system is established for each line charge, and finally the calculated two-dimensional electric field is derived to the three-dimensional space through space transformation, so that not only the electric field effective values of the to-be-determined suspension points can be obtained, but also the complexity of three-dimensional electric field calculation is simplified; finally, the suspension points of the ADSS optical cable are provided, which are not affected by the electric field or have reduced electric field influence, the ADSS optical cable itself is prevented from being damaged due to the dry charged arc phenomenon leading to electric corrosion, and the smooth operation of the power communication system is improved.

[0018] In the present application, the second fly-out operation is cancelled by using the pulley suspension scheme combining the suspension rope and the control rope through the opening pulley in the form of the movement pulley, which optimizes the construction process, reduces the construction steps, shortens the construction time, effectively improves the construction efficiency, reduces the safety risk, and provides an economic and efficient solution for the optical cable erection under complex terrain. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the embodiments of the application. In the drawings: Figure 1 The method flow chart of the erection method in the embodiments of the present application; Figure 2 The schematic diagram of the movement pulley and the movement pulley suspension in the embodiments of the present application; Figure 3 The connection schematic diagram of the erection system in the embodiments of the present application; Figure 4 The connection schematic diagram of the electronic device in the embodiments of the present application. DETAILED DESCRIPTION

[0020] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0022] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0023] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the present application when it is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0024] In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, they do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0025] In the description of the embodiments of the present application, "a plurality of" represents at least 2.

[0026] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Embodiment 1: In order to solve the problems of low construction efficiency, high safety risk, complex construction process, terrain limitation, and random selection of hanging points of ADSS optical cable on the tower, which leads to damage to the ADSS optical cable itself when affected by electric corrosion, and seriously affects the smooth operation of the power communication system, etc., the embodiment provides a method for erecting ADSS optical cable on a power transmission line, as shown in Figure 1 The specific steps include: S1, a structure model of the power transmission lines on both sides of the erected tower is established in a preset coordinate system, and the structure model represents the height of any point of the power transmission lines on both sides relative to the ground.

[0028] Wherein, when the structural model of the power transmission line on both sides of the erected tower is established, since the power transmission line will be affected by its own mechanical weight, ice coating and wind pressure load and other factors in actual operation, a certain sag will be generated, and then a parabolic equation can be used to establish; the structural model can be established by taking the intersection of the tower axis and the ground as the origin, taking the direction of the power transmission line as the X axis, taking the vertical direction of the line as the Y axis, and taking the vertical ground direction as the Z axis, and then the structural model of the power transmission line on both sides of the erected tower can be expressed as: ; In the formula, represents the specific load, N / m·mm 2 ; represents the horizontal stress of the power transmission line, N / mm 2 , represents the span of the erected tower on the negative half axis side of the X axis of the corresponding coordinate system, represents the suspension height of the power transmission line on the erected tower, is the value of the X axis in the coordinate system, which represents the horizontal distance from the erected tower; represents the span of the erected tower on the positive half axis side of the X axis of the corresponding coordinate system, represents the horizontal distance from the erected tower at the low height.

[0029] S2, based on the structural model, the two sides of the arc-shaped power transmission line are non-uniformly divided into a plurality of target line segments according to the fitting accuracy value.

[0030] Wherein, since the structure of the power transmission line has a certain curvature, in order to improve the accuracy in electric field calculation, the power transmission line can be divided into a plurality of line segments, and then each segment can be regarded as a straight line, so that the accuracy of the calculated electric field can be effectively improved.

[0031] Optionally, the two sides of the arc-shaped power transmission line are non-uniformly divided into a plurality of target line segments according to the fitting accuracy value, and the specific method is as follows: S21, for any power transmission line on both sides, the power transmission line is equally divided.

[0032] S22, for any segment after equal interval division, the true function of the segment is obtained through the structural model, and a first order function of the straight line connecting the two ends of the segment is fitted.

[0033] S23, the fitting accuracy value is calculated through the true function of each segment and the corresponding first order function, if the fitting accuracy value exceeds the threshold value, then the division is performed again, until the fitting accuracy value of each segment after division does not exceed the threshold value; wherein the fitting accuracy value can be: ; In the formula, represents the horizontal coordinate interval of any segment after equal interval division, and , represents a linear function formed by the straight line connecting the end points of the segment , is a function of the structure model corresponding to the horizontal coordinate interval , represents the fitting accuracy value of the segment.

[0034] S24, in each segment line whose fitting accuracy value does not exceed the threshold value, the real function is replaced by a linear function in each segment, and each segment represented by the linear function is determined as a target segment.

[0035] Specifically, when the fitting accuracy value is less than the set threshold value, the linear function may be used to replace the real function , when the fitting accuracy value is higher than the set threshold value, the error is too large to be equivalent, and the division in this interval should be continued until the accuracy is met; finally, the model will be adaptively divided into segments of different lengths.

[0036] S3, based on the equivalent radius of each target segment calculated, the electric field coefficient of each target segment in the two-dimensional plane coordinate system along the coordinate axis direction is calculated.

[0037] Specifically, before the electric field calculation, the simulation charge needs to be set, and a set of line charges can be uniformly set at an angle interval of around the axis of each equivalent transmission line segment, the number of line charges is equal to the number of sub-conductors, so that the structure of the actual transmission line can be more closely matched; wherein the equivalent radius of each target segment is specifically: ; In the formula, represents the equivalent radius of the target segment, represents the radius of the sub-conductor in the target segment, represents the number of sub-conductors in the target segment, is the split distance of the target segment, which represents the distance from the center of each sub-conductor to the center of the circumference formed by the distribution of each sub-conductor, i.e. the radius of the sub-conductor distribution circle.

[0038] Wherein, in the constructed two-dimensional plane coordinate system, the longitudinal axis represents the direction of the line charge, and the horizontal axis is the vertical direction of the matching point to the line charge; therefore, on the two-dimensional plane formed by the line charge and the matching point, the coordinates of the start and end points of the target segment (line charge) are , , and the potential generated at the matching point is: ; In the formula, , , respectively represent the matching points The distance from the two endpoints of the target line segment, due to the charge density Then the potential coefficient at the matching point is: ; Furthermore, based on the first type of boundary condition, the potential at the matching point is known, which can be expressed using the vector method as follows: (1); In the formula, , , Given the phase angle of each phase line, the real and imaginary parts of the line charge are obtained by solving the simulated charge matrix equation: (2); Therefore, the electric field coefficients of each target line segment along the coordinate axes in the two-dimensional plane coordinate system are as follows: ; In the formula, Represents a preset two-dimensional plane coordinate system medium length is target line segment along The electric field coefficient of the shaft, Represented in a two-dimensional plane coordinate system medium length is target line segment along The electric field coefficient of the shaft, They are respectively of length The target line segment in the plane coordinate system Matching points in coordinates, This represents the dielectric constant of the dielectric material. The length of the target line segment, Represent the two ends of the target line segment in the plane coordinate system. middle The coordinate values ​​of the axis. and They represent the matching points respectively. The distance to the two endpoints of the target line segment.

[0039] S4 maps the electric field coefficients of each target line segment in the two-dimensional plane to the three-dimensional space and fits the induced electric field around the erected tower.

[0040] Among these steps, mapping the calculation results of the two-dimensional planar electric field coefficients to three-dimensional space allows us to use points... ,point These represent the start and end points of the target line segment, for example, through... Let S be the field point to be calculated, and point R be the perpendicular point of field point S on the target line segment. The length of the target line segment remains the same. ,pass This represents the distance from point R to point A. The value can be positive or negative. When the value is negative, it indicates that the perpendicular point R lies on the opposite extension of the target line segment, which can then be calculated using vectors: Then the coordinates of point R can be obtained as follows: ; The electric field coefficients in a three-dimensional coordinate system can be obtained by using spatial transformation: ; ; ; In the formula, , Let A and B represent the spatial angles between the target line segment (line charge) and its perpendicular segment and the horizontal plane, respectively: .

[0041] S5: Based on the induced electric field, obtain the effective electric field value of each suspension point on the tower, determine the point with the smallest effective electric field value as the target suspension point, and install the ADSS optical cable in a preset manner.

[0042] The electric field coefficients in the three-dimensional coordinate system have been obtained from the above steps. Then, the simulated charge can be obtained through equations (1) and (2) in the above content. The electric field components in the three directions of any point in the three-dimensional space can be calculated. Finally, the effective value of the electric field at each point can be obtained through the electric field components.

[0043] Optionally, the effective values ​​of the electric field at each of the above-mentioned suspension points are as follows: ; in: ; In the formula, The coordinates in the coordinate system of the structural model The effective value of the electric field at that location, These represent the coordinates in the coordinate system where the structural model resides. The electric field components in the X, Y, and Z directions, Representing coordinates The electric field coefficients in the three directions are respectively. Let these represent the real and imaginary parts of the line charge, respectively. The imaginary unit is the imaginary part, representing the imaginary portion of the electric field components.

[0044] Optionally, the ADSS optical cable is laid using the preset method described above, specifically as follows: S61, Install auxiliary pulleys at corresponding positions on tower A and tower B, and stretch the ADSS optical cable to make it drive-connected to the auxiliary pulley of tower A. S62, connect the suspension rope and control rope to the motion pulley, such as Figure 2 As shown, the suspension rope is attached to the power transmission line between tower A and tower B, and the ADSS optical cable is attached to the moving pulley, which is an open pulley. See [reference needed]. Figure 2 The height of the baffles on both sides of the open pulley can be 175mm and 75mm respectively. The pulley opening is large and the belly is small. The baffles have a 30° slope to prevent the optical cable from slipping out. S63, by carrying the lead wire from the fly-out line of the erection tower A to the obstacle between erection tower A and erection tower B, the moving pulley is brought closer to the transmission line by the suspension rope at the obstacle, and the moving pulley is fixed by the suspension rope and the control rope; S64, pull the ADSS optical cable from the ground to the erection tower A to the erection tower B, and connect the ADSS optical cable to the auxiliary pulley drive of the erection tower B; S65, pull the ADSS optical cable at the erection tower B and make the sag reach the preset condition, fix the ADSS optical cable at the target suspension point on the erection tower A and erection tower B, and move the moving pulley away from the power transmission line through the control rope and suspension rope, so that the moving pulley is detached from the ADSS optical cable, and the optical cable erection is completed.

[0045] Example 2: This application provides an ADSS optical cable installation system on a power transmission line, applied to the ADSS optical cable installation method in Example 1, such as... Figure 3 As shown, it includes: The model building module is used to build a structural model of the transmission lines on both sides of the tower in a preset coordinate system. The structural model represents the height of any point on the transmission lines above the ground. The line segment division module is used to non-uniformly divide the two sides of the arc-shaped transmission line into several target line segments based on the structural model and the fitting accuracy value. The electric field coefficient calculation module is used to calculate the electric field coefficient of each target line segment along the coordinate axis in a two-dimensional plane coordinate system based on the calculated equivalent radius of each target line segment. The induced electric field fitting module is used to map the electric field coefficients of each target line segment in the two-dimensional plane to the three-dimensional space and fit the induced electric field around the erected tower. The suspension point determination module is used to obtain the effective electric field value of each suspension point on the erection tower based on the induced electric field, determine the point with the smallest effective electric field value as the target suspension point, and erect the ADSS optical cable in a preset manner.

[0046] Example 3: This application provides an electronic device, such as... Figure 4 As shown, it includes: at least one processor, at least one memory, and a data bus;

[0047] The processor and memory communicate with each other via a data bus; the memory stores program instructions that can be executed by the processor, and the processor calls the program instructions to execute the method of laying ADSS optical cable on the power transmission line as in Example 1.

[0048] Example 4: This application provides a non-transitory computer-readable storage medium that stores computer instructions, which cause the computer to execute the ADSS optical cable laying method of Example 1 on the power transmission line.

[0049] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0050] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0051] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1The function specified in one or more boxes.

[0052] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0053] Those skilled in the art will understand that all or part of the steps in the above facts and methods can be implemented by a program instructing related hardware. The program or the program described therein can be stored in a computer-readable storage medium. When the program is executed, it includes the following steps: at this time, the corresponding method steps are introduced. The storage medium can be a method, system, device and medium M for laying ROM / RADSS optical cables on the transmission line, magnetic disk, optical disk, etc.

[0054] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment 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 within the scope of protection of the present invention.

Claims

1. A method for installing ADSS optical cables on power transmission lines, characterized in that, The specific steps include the following: A structural model of the transmission lines on both sides of the tower is established in a preset coordinate system. The structural model represents the height of any point on the transmission lines above the ground. Based on the aforementioned structural model, the arc-shaped transmission lines on both sides are non-uniformly divided into several target line segments according to the fitting accuracy value. Based on the calculated equivalent radius of each target line segment, the electric field coefficient of each target line segment along the coordinate axis in the two-dimensional plane coordinate system is calculated. The electric field coefficients of each target line segment in the two-dimensional plane are mapped to the three-dimensional space, and the induced electric field around the erected tower is obtained by fitting. Based on the induced electric field, the effective electric field value of each suspension point on the tower is obtained, the point with the smallest effective electric field value is determined as the target suspension point, and the ADSS optical cable is erected in a preset manner.

2. The method for installing ADSS optical cable on a power transmission line according to claim 1, characterized in that, The installation of ADSS optical cables using a preset method is specifically as follows: Install auxiliary pulleys at corresponding positions on tower A and tower B, and stretch the ADSS optical cable to make it drive-connected to the auxiliary pulley of tower A. The suspension rope and control rope are connected to the moving pulley, and the suspension rope is laid on the power transmission line between the erected tower A and the erected tower B. The ADSS optical cable is also laid on the moving pulley, which is an open pulley. By carrying the lead wire from the overhead line of the vehicle to the obstacle between the overhead line and the overhead line B, the moving pulley is brought closer to the transmission line by the suspension rope at the obstacle, and the moving pulley is fixed by the suspension rope and the control rope. The ADSS optical cable is pulled from tower A to tower B by a ground-based traction cable, and then connected to the auxiliary pulley drive of tower B. At tower B, pull the ADSS optical cable and make the sag reach the preset condition. Fix the ADSS optical cable at the target suspension point on towers A and B. Use the control rope and suspension rope to move the moving pulley away from the power transmission line, so that the moving pulley is detached from the ADSS optical cable, and the optical cable erection is completed.

3. The method for installing ADSS optical cable on a power transmission line according to claim 1, characterized in that, The structural model of the transmission lines on both sides of the erected tower is as follows: ； In the formula, Specific load, N / m·mm 2 ; This represents the horizontal stress in a power transmission line, in N / mm². 2 , This represents the span of the erected tower on the negative half of the X-axis in a preset coordinate system, with the intersection of the tower's axis and the ground as the origin, the direction of the transmission line as the X-axis, the direction perpendicular to the line as the Y-axis, and the direction perpendicular to the ground as the Z-axis. This indicates the suspension height of the transmission line on the erection tower. The value of the X-axis in this coordinate system represents the horizontal distance from the tower being erected; This indicates the span of the erected tower on the positive half-axis of the corresponding coordinate system. Indicates the horizontal distance from the erected tower. At low altitudes.

4. The method for installing ADSS optical cable on a power transmission line according to claim 1, characterized in that, The fitting accuracy value divides the arc-shaped transmission lines on both sides into several target line segments non-uniformly, specifically: For any two transmission lines, divide the transmission lines into equal intervals; For any segment after equal intervals, the true function of the segment is obtained through the structural model, and a linear function of the line connecting the two ends of the segment is fitted. The fitting accuracy value is calculated by the true function and the corresponding linear function of each segment. If the fitting accuracy value exceeds the threshold, the segment is divided again until the fitting accuracy value of each segment does not exceed the threshold. In each line segment where the fitting accuracy value does not exceed the threshold, the true function is replaced by a linear function in each segment, and each segment represented by the linear function is determined as the target line segment.

5. The method for installing ADSS optical cable on a power transmission line according to claim 4, characterized in that, The specific fitting accuracy value is: ； In the formula, This represents the x-coordinate interval of any segment after equal division, and , Indicates the endpoints at both ends of the segment. A linear function formed by connecting straight lines. For the x-axis interval The corresponding structural model function, This indicates the fitting accuracy value for that segment.

6. The method for installing ADSS optical cable on a power transmission line according to claim 1, characterized in that, The equivalent radius of each target line segment is as follows: ； In the formula, Represents the equivalent radius of the target line segment. This represents the radius of the sub-traverse in the target line segment. This indicates the number of sub-traverses in the target line segment. The split spacing of the target line segment represents the distance from the center of each sub-conductor to the center of the circle formed by the distribution of each sub-conductor, i.e., the radius of the sub-conductor distribution circle; The electric field coefficients of each target line segment along the coordinate axes in the two-dimensional plane coordinate system are as follows: ； In the formula, Represents a preset two-dimensional plane coordinate system medium length is target line segment along The electric field coefficient of the shaft, Represented in a two-dimensional plane coordinate system medium length is target line segment along The electric field coefficient of the shaft, They are respectively of length The target line segment in the plane coordinate system Matching points in coordinates, This represents the dielectric constant of the dielectric material. The length of the target line segment, Represent the two ends of the target line segment in the plane coordinate system. middle The coordinate values ​​of the axis. and They represent the matching points respectively. The distance to the two endpoints of the target line segment.

7. The method for installing ADSS optical cable on a power transmission line according to claim 1, characterized in that, The effective values ​​of the electric field at each suspension point are as follows: ； in: ； In the formula, The coordinates in the coordinate system of the structural model The effective value of the electric field at that location, These represent the coordinates in the coordinate system where the structural model resides. The electric field components in the X, Y, and Z directions, Representing coordinates The electric field coefficients in the three directions are respectively. Let these represent the real and imaginary parts of the line charge, respectively. The imaginary unit is the imaginary part, representing the imaginary portion of the electric field components.

8. An ADSS optical cable installation system on a power transmission line, characterized in that, include: The model building module is used to establish a structural model of the transmission lines on both sides of the tower in a preset coordinate system. The structural model represents the height of any point on both sides of the transmission lines above the ground. The line segment division module is used to divide the arc-shaped transmission lines on both sides into several target line segments non-uniformly based on the structural model and according to the fitting accuracy value. The electric field coefficient calculation module is used to calculate the electric field coefficient of each target line segment along the coordinate axis in a two-dimensional plane coordinate system based on the calculated equivalent radius of each target line segment. The induced electric field fitting module is used to map the electric field coefficients of each target line segment in the two-dimensional plane to the three-dimensional space and fit the induced electric field around the erected tower. The suspension point determination module is used to obtain the effective electric field value of each suspension point on the erection tower based on the induced electric field, determine the one with the smallest effective electric field value as the target suspension point, and erect the ADSS optical cable in a preset manner.

9. An electronic device, characterized in that, include: At least one processor, at least one memory, and a data bus; The processor and the memory communicate with each other via the data bus. The memory stores program instructions that can be executed by the processor, which calls the program instructions to execute the method for laying ADSS optical cable on the power transmission line as described in any one of claims 1-7.

10. A non-transitory computer-readable storage medium, characterized in that, The non-transitory computer-readable storage medium stores computer instructions that cause the computer to execute the method for laying ADSS optical cable on the power transmission line as described in any one of claims 1-7.

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