Method, device, equipment and medium for monitoring ice thickness of conductor of strain tower

Abstract

The application discloses a kind of monitoring method, device, equipment and medium of the ice thickness of strain tower conductor, comprising: first data acquisition, including obtaining monitoring basic data and the real-time monitoring data of strain tower at current monitoring moment.Then calculate, including based on microclimate data, and the size comparison relationship between real-time total tension and average total tension determines whether the current existence of strain tower conductor icing;If strain tower conductor currently exists icing, then according to real-time total tension, average total tension and inclination angle calculate the net weight and horizontal tension of strain tower conductor in vertical direction;According to the radius of conductor, horizontal tension, horizontal distance and / or vertical distance, the total length of strain tower conductor is calculated;According to net weight, ice density, total length, conductor radius and conductor number of division, the ice thickness of strain tower conductor is calculated.The calculation of the above data can accurately deduce the ice thickness of conductor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of on-line monitoring of icing on power transmission lines, and in particular to a method, device, equipment and medium for monitoring the icing thickness of a conductor of a strain tower. BACKGROUND

[0002] Social production and life, economic growth cannot do without electricity. It can be said that electricity has supported the formation and development of modern civilization, and stable power transmission is the key to driving sustained economic development. However, icing, as a natural disaster, threatens the stability of power transmission in the cold winter season, especially in the humid southern region in winter.

[0003] Severe icing can cause ice flashover of insulators, damage of fittings, line breakage and tower collapse, and even cause the power grid in a certain area or region to be paralyzed. In order to ensure the stable operation of the power grid, it is necessary to monitor the icing of the conductor in real time in the cold winter season. SUMMARY

[0004] Therefore, it is necessary to provide a method, device, equipment and medium for monitoring the icing thickness of a conductor of a strain tower to solve the problem that it is difficult to monitor the icing of the conductor in real time in the cold winter season.

[0005] A method for monitoring the icing thickness of a conductor of a strain tower, the method comprising:

[0006] obtaining monitoring basic data and real-time monitoring data of the strain tower at the current monitoring time; wherein the real-time monitoring data includes real-time total tension of the conductor of the strain tower, inclination angle of the insulator on the strain tower compared to the vertical direction and microclimate data, and the monitoring basic data includes average total tension of the conductor of the strain tower in the non-icing period, horizontal distance and vertical distance between adjacent strain towers, icing density, conductor radius and conductor sub-number;

[0007] determining whether the conductor of the strain tower currently has icing based on the microclimate data and the size comparison relationship between the real-time total tension and the average total tension;

[0008] if the conductor of the strain tower currently has icing, calculating the net weight and horizontal tension of the conductor of the strain tower in the vertical direction according to the real-time total tension, the average total tension and the inclination angle;

[0009] calculating the total length of the conductor of the strain tower according to the conductor radius, the horizontal tension, the horizontal distance and / or the vertical distance;

[0010] calculating the icing thickness of the conductor of the strain tower according to the net weight, the icing density, the total length, the conductor radius and the conductor sub-number.

[0011] In one of the embodiments, the determination of whether the overhead ground wire of the strain tower is currently covered with ice based on the microclimate data and the comparison between the real-time total tension and the average total tension includes:

[0012] If the real-time temperature in the microclimate data is less than 0°, the real-time air humidity is greater than 80%, and the real-time total tension is greater than the average total tension, it is determined that the overhead ground wire of the strain tower is currently covered with ice.

[0013] In one of the embodiments, the formula for calculating the net weight and the horizontal tension of the overhead ground wire of the strain tower in the vertical direction is:

[0014]

[0015] In the above formula, is the net weight, is the horizontal tension, is the real-time total tension, is the average total tension, is the inclination angle.

[0016] In one of the embodiments, when the vertical heights between adjacent strain towers are equal, the formula for calculating the total length of the overhead ground wire of the strain tower is:

[0017]

[0018] In the above formula, is the total length of the overhead ground wire of the strain tower when the vertical heights between adjacent strain towers are equal, is the circular constant, is the radius of the wire, is the acceleration of gravity, is the hyperbolic sine function, is the horizontal distance.

[0019] In one of the embodiments, when the vertical heights between adjacent strain towers are equal, the formula for calculating the ice thickness of the overhead ground wire of the strain tower is:

[0020]

[0021] In the above formula, is the ice thickness of the overhead ground wire of the strain tower when the vertical heights between adjacent strain towers are equal, is the net weight is the ice density, is the number of wire sections.

[0022] In one of the embodiments, when the vertical heights between adjacent strain towers are not equal, the formula for calculating the total length of the overhead ground wire of the strain tower is:

[0023]

[0024] In the above formula, is the total length of the strain tower conductor when the vertical height between adjacent strain towers is not equal, is the vertical distance.

[0025] In one embodiment, when the vertical height between adjacent strain towers is not equal, the formula for calculating the total length of the strain tower conductor is:

[0026]

[0027] In the above formula, is the ice thickness of the strain tower conductor when the vertical height between adjacent strain towers is not equal, is the net weight is the ice density, is the number of conductor sections.

[0028] A monitoring device for the ice thickness of a strain tower conductor, the device comprising:

[0029] a data acquisition module for acquiring monitoring basic data and real-time monitoring data of the strain tower at the current monitoring time; wherein the real-time monitoring data includes the real-time total tension of the strain tower conductor, the inclination angle of the insulator on the strain tower compared to the vertical direction, and microclimate data, and the monitoring basic data includes the average total tension of the strain tower conductor in the non-icing period, the horizontal distance and the vertical distance between adjacent strain towers, the ice density, the conductor radius, and the number of conductor sections;

[0030] an ice thickness calculation module for determining whether the strain tower conductor currently has ice based on the microclimate data and the size comparison relationship between the real-time total tension and the average total tension; if the strain tower conductor currently has ice, calculating the net weight and the horizontal tension of the strain tower conductor in the vertical direction according to the real-time total tension, the average total tension, and the inclination angle; calculating the total length of the strain tower conductor according to the conductor radius, the horizontal tension, the horizontal distance, and / or the vertical distance; and calculating the ice thickness of the strain tower conductor according to the net weight, the ice density, the total length, the conductor radius, and the number of conductor sections.

[0031] A computer-readable storage medium storing a computer program, the computer program being executed by a processor to cause the processor to perform the steps of the above monitoring method for the ice thickness of a strain tower conductor.

[0032] The monitoring device for the ice thickness of the conductor of the strain tower comprises a memory and a processor, the memory stores a computer program, and the computer program is executed by the processor to make the processor execute the steps of the monitoring method for the ice thickness of the conductor of the strain tower.

[0033] The present application provides a monitoring method, device, equipment and medium for the ice thickness of the conductor of the strain tower. The present application firstly acquires data, including acquiring monitoring basic data and real-time monitoring data of the strain tower at the current monitoring time. Then, calculation is performed, including determining whether the conductor of the strain tower currently exists ice based on the microclimate data and the size comparison relationship between the real-time total tension and the average total tension; if the conductor of the strain tower currently exists ice, calculating the net weight and the horizontal tension of the conductor of the strain tower in the vertical direction according to the real-time total tension, the average total tension and the inclination angle; calculating the total length of the conductor of the strain tower according to the conductor radius, the horizontal tension, the horizontal distance and / or the vertical distance; and calculating the ice thickness of the conductor of the strain tower according to the net weight, the ice density, the total length, the conductor radius and the conductor section number. The calculation of the above data can accurately deduce the ice thickness of the conductor. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0035] In the formula, the parameters are as follows:

[0036] Figure 1 It is a flowchart of the monitoring method for the ice thickness of the conductor of the strain tower in an embodiment;

[0037] Figure 2 It is a structural schematic diagram of the monitoring device for the ice thickness of the conductor of the strain tower in an embodiment;

[0038] Figure 3 It is a structural block diagram of the monitoring device for the ice thickness of the conductor of the strain tower in an embodiment. DETAILED DESCRIPTION

[0039] 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 some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0040] AsFigure 1 As shown, Figure 1 As shown in FIG. 1, the flowchart of the method for monitoring the ice thickness of the conductor of the strain tower in an embodiment, the steps provided by the method for monitoring the ice thickness of the conductor of the strain tower in the embodiment include:

[0041] S101, obtaining monitoring basic data and real-time monitoring data of the strain tower at a current monitoring moment.

[0042] The monitoring basic data is some data that can be obtained in advance, and the data generally does not change with time. The monitoring basic data in the embodiment includes the average total tension of the conductor of the strain tower in the non-icing period, the horizontal distance and the vertical distance between adjacent strain towers, the ice density, the conductor radius and the number of conductor branches.

[0043] Optionally, the model of the strain tower can be obtained first, and the model is input into the database to query the data such as the horizontal distance and the vertical distance between adjacent strain towers, the conductor radius and the number of conductor branches. Further, the average total tension of the conductor of the strain tower in the non-icing period can be obtained by searching historical charts.

[0044] Optionally, the type of ice on the line can be determined according to the historical distribution map of the conductor icing type in China or the line icing photos uploaded by the online monitoring terminal, and then an appropriate ice density is selected. For example, if the type of ice is rain icing, the ice density is 0.85 ; if the type of ice is fog icing, the ice density is 0.25 ; and if the type of ice is mixed icing, the ice density is 0.6-0.9 .

[0045] The real-time monitoring data is determined in real time based on monitoring requirements, and the data changes with time. The real-time monitoring data in the embodiment includes the real-time total tension of the conductor of the strain tower, the inclination angle of the insulator on the strain tower relative to the vertical direction and the microclimate data, which can be detected in real time by the sensors arranged on the strain tower.

[0046] S102, determining whether the conductor of the strain tower currently exists icing based on the microclimate data and the comparison relationship between the real-time total tension and the average total tension. If the conductor of the strain tower currently exists icing, S103 is performed.

[0047] In a specific embodiment, whether the conductor currently exists icing is determined by the following method:

[0048] If the real-time temperature in the microclimate data is less than 0°, the real-time air humidity is greater than 80%, and the real-time total tension is greater than the average total tension, it is judged that the tower conductor currently exists icing. Of course, if any one of the conditions is not met, it is judged that the tower conductor currently does not exist icing.

[0049] Because if the condition of "real-time temperature less than 0° and real-time air humidity greater than 80%" is not met, it indicates that the current environment does not have the physical conditions to form icing, and at this time it is impossible to exist icing. If the condition of "real-time total tension greater than average total tension" is not met, it indicates that the current has not formed enough icing, and it can be considered that the current does not exist icing or the icing can be basically ignored, and there is no need to monitor the icing thickness subsequently. Of course, the judgment criteria of microclimate data here can be set by actual situation, and is not limited.

[0050] S103, calculating the net weight and horizontal tension of the tower conductor in the vertical direction according to the real-time total tension, the average total tension and the inclination angle.

[0051] In one specific embodiment, the formula for calculating the net weight and horizontal tension of the tower conductor in the vertical direction is:

[0052]

[0053] In the above formula, is the net weight of the tower conductor in the vertical direction; is the horizontal tension of the tower conductor in the vertical direction is the real-time total tension, unit: Kg is the average total tension, unit: Kg is the inclination angle of the insulator on the tower compared to the vertical direction.

[0054] S104, calculating the total length of the tower conductor according to the conductor radius, the horizontal tension, the horizontal distance and / or the vertical distance.

[0055] The vertical height between adjacent towers exists two cases, one is that the vertical height between adjacent towers is the same, and the other is that the vertical height between adjacent towers is different, and the total length of the tower conductor calculated in the two cases is different. Therefore, the total length of the tower conductor is discussed below.

[0056] Optionally, when the vertical height between adjacent towers is equal, the total length can be calculated by using the catenary formula, and the basic form is:

[0057]

[0058]

[0059] In the above formula, is the total length, w is the horizontal tension, is the load ratio, r is the conductor radius, d is the horizontal distance between adjacent tension towers, is the acceleration of gravity, is the circular constant.

[0060] By simultaneously solving the above two equations and substituting the actual parameters, the formula for calculating the total length of the tension tower conductor is finally obtained as:

[0061]

[0062] In the above formula, is the total length of the tension tower conductor when the vertical height between adjacent tension towers is equal, is the circular constant, is the conductor radius, is the acceleration of gravity, is the hyperbolic sine function, is the horizontal distance between adjacent tension towers.

[0063] Alternatively, when the vertical height between adjacent tension towers is not equal, since there may be a height difference between adjacent tension towers, the length of the non-equal height line is greater than that of the equal height line, which can be further calculated by the arc length calculus formula, and the formula for calculating the total length of the tension tower conductor is finally obtained as:

[0064]

[0065]

[0066] In the above formula, is the total length of the tension tower conductor when the vertical height between adjacent tension towers is not equal, is the vertical distance between adjacent tension towers.

[0067] S105, according to the net weight, the ice density, the total length, the conductor radius and the conductor division number, the ice thickness of the tension tower conductor is calculated.

[0068] Similarly, there are two cases for the calculation method of the ice thickness of the tension tower conductor, so the following cases are discussed.

[0069] When the vertical height between adjacent tension towers is equal, the formula for calculating the ice thickness of the tension tower conductor is:

[0070]

[0071] In the above formula, is the ice thickness of the tension tower conductor when the vertical height between adjacent tension towers is equal, with the unit of millimeters; 1000 is used for unit conversion; for the net weight for the ice density for the number of wire sections. indicating the wire surface area, indicating the weight in kg.

[0072] After the above formula is arranged, the final result is:

[0073]

[0074] When the vertical height between adjacent tension towers is not equal, the formula for calculating the total length of the tension tower wire is:

[0075]

[0076] In the above formula, is the ice thickness of the tension tower wire when the vertical height between adjacent tension towers is not equal, in millimeters; for the net weight for the ice density for the number of wire sections.

[0077] In one embodiment, as shown in Figure 2 , a monitoring device for the ice thickness of a tension tower wire is proposed, which comprises:

[0078] a data acquisition module 201, configured to acquire monitoring basic data and real-time monitoring data of the tension tower at a current monitoring time; wherein the real-time monitoring data comprises real-time total tension of the tension tower wire, an inclination angle of the insulator on the tension tower compared to the vertical direction, and microclimate data, and the monitoring basic data comprises average total tension of the tension tower wire in the ice-free period, horizontal distance and vertical distance between adjacent tension towers, ice density, wire radius, and the number of wire sections;

[0079] an ice thickness calculation module 202, configured to determine whether the tension tower wire currently has ice based on the microclimate data and a size comparison relationship between the real-time total tension and the average total tension; if the tension tower wire currently has ice, to calculate the net weight and the horizontal tension of the tension tower wire in the vertical direction according to the real-time total tension, the average total tension, and the inclination angle; to calculate the total length of the tension tower wire according to the wire radius, the horizontal tension, the horizontal distance, and / or the vertical distance; and to calculate the ice thickness of the tension tower wire according to the net weight, the ice density, the total length, the wire radius, and the number of wire sections.

[0080] Figure 3 An internal structure diagram of the monitoring device for the ice thickness of the tension tower wire in one embodiment is shown. As Figure 3As shown, the monitoring device for ice thickness of the tension tower conductor includes a processor, a memory and a network interface connected through a system bus. The memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the monitoring device for ice thickness of the tension tower conductor stores an operating system, and can also store a computer program which, when executed by the processor, enables the processor to implement the monitoring method for ice thickness of the tension tower conductor. The internal memory can also store a computer program which, when executed by the processor, enables the processor to execute the monitoring method for ice thickness of the tension tower conductor. Those skilled in the art can understand that, Figure 3 The structure shown in the above is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the monitoring device for ice thickness of the tension tower conductor to which the scheme of the present application is applied. The specific monitoring device for ice thickness of the tension tower conductor can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0081] A monitoring device for ice thickness of a tension tower conductor includes a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented: obtaining monitoring basic data and real-time monitoring data of the tension tower at a current monitoring time; determining whether the tension tower conductor currently has ice based on the microclimate data and a size comparison relationship between the real-time total tension and the average total tension; if the tension tower conductor currently has ice, calculating the net weight and the horizontal tension of the tension tower conductor in the vertical direction according to the real-time total tension, the average total tension and the inclination angle; calculating the total length of the tension tower conductor according to the conductor radius, the horizontal tension, the horizontal distance and / or the vertical distance; and calculating the ice thickness of the tension tower conductor according to the net weight, the ice density, the total length, the conductor radius and the conductor number.

[0082] A computer readable storage medium stores a computer program which, when executed by a processor, implements the following steps: obtaining monitoring basic data and real-time monitoring data of a tension tower at a current monitoring time; determining whether the tension tower conductor currently has ice based on the microclimate data and a size comparison relationship between the real-time total tension and the average total tension; if the tension tower conductor currently has ice, calculating the net weight and the horizontal tension of the tension tower conductor in the vertical direction according to the real-time total tension, the average total tension and the inclination angle; calculating the total length of the tension tower conductor according to the conductor radius, the horizontal tension, the horizontal distance and / or the vertical distance; and calculating the ice thickness of the tension tower conductor according to the net weight, the ice density, the total length, the conductor radius and the conductor number.

[0083] It should be noted that the above monitoring method, device, equipment and computer readable storage medium of the ice thickness of the tension tower conductor are one overall inventive concept, and the contents in the monitoring method, device, equipment and computer readable storage medium of the ice thickness of the tension tower conductor are applicable to each other.

[0084] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing related hardware, the program can be stored in a non-volatile computer readable storage medium, and the program can include the processes of the above-mentioned embodiments when executed. Wherein, any reference to memory, storage, database or other medium used in each embodiment provided by the present application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM) and the like.

[0085] Each technical feature of the above embodiments can be combined arbitrarily, and in order to make the description simple, each technical feature in the above embodiments is not described in all possible combinations, however, as long as the combination of the technical features does not exist, it should be considered as the scope of the present application.

[0086] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A method for monitoring the ice thickness of conductors on tension towers, characterized in that, The method includes: Acquire basic monitoring data and real-time monitoring data of the tension tower at the current monitoring time; wherein, the real-time monitoring data includes the real-time total tension of the conductor of the tension tower, the tilt angle of the insulator on the tension tower relative to the vertical direction, and micro-meteorological data, and the basic monitoring data includes the average total tension of the conductor of the tension tower during the ice-free period, the horizontal and vertical distances between adjacent tension towers, the ice density, the conductor radius, and the number of conductor splits; Based on the micro-meteorological data and the comparison between the real-time total tension and the average total tension, it is determined whether the tension tower conductor is currently covered with ice. If the tension tower conductor is currently covered with ice, the net weight and horizontal tension of the tension tower conductor in the vertical direction are calculated based on the real-time total tension, the average total tension, and the tilt angle. Calculate the total length of the tension tower conductor based on the conductor radius, the horizontal tension, the horizontal distance, and / or the vertical distance; The ice thickness of the tension tower conductor is calculated based on the net weight, the ice density, the total length, the conductor radius, and the number of conductor splits. The formulas for calculating the net weight of the conductor in the vertical direction and the horizontal tension of the tension tower are as follows: In the above formula, The net weight is... The horizontal tension, The real-time total tensile force, The average total tension, The tilt angle is mentioned above; When the vertical height between adjacent tension towers is equal, the formula for calculating the icing thickness of the conductor on the tension tower is: In the above formula, To determine the ice thickness of the conductor on adjacent tension towers when their vertical heights are equal, The net weight The ice density is... The number of wire splits, This refers to the total length of the conductor in the tension towers when the vertical heights between adjacent tension towers are equal. Let be the radius of the conductor.

2. The method according to claim 1, characterized in that, The method of determining whether the tension tower conductor is currently covered with ice based on the micro-meteorological data and the comparison between the real-time total tension and the average total tension includes: If the real-time temperature in the micro-meteorological data is less than 0°C, the real-time air humidity is greater than 80%, and the real-time total tension is greater than the average total tension, then it is determined that the tension tower conductor is currently covered with ice.

3. The method according to claim 1, characterized in that, When the vertical height between adjacent tension towers is equal, the formula for calculating the total length of the conductor in the tension tower is: In the above formula, This refers to the total length of the conductor in the tension towers when the vertical heights between adjacent tension towers are equal. Pi The radius of the conductor is... It is the acceleration due to gravity. It is a hyperbolic sine function. The horizontal distance is... The load ratio.

4. The method according to claim 3, characterized in that, When the vertical heights between adjacent tension towers are not equal, the formula for calculating the total length of the conductor of the tension tower is: In the above formula, This refers to the total length of the conductor in the tension towers when the vertical heights between adjacent tension towers are not equal. The vertical distance is given.

5. The method according to claim 4, characterized in that, When the vertical heights between adjacent tension towers are not equal, the formula for calculating the total length of the conductor of the tension tower is: In the above formula, The ice thickness of the conductor on the tension tower is calculated when the vertical heights between adjacent tension towers are not equal. The net weight The ice density is... The number of splits in the conductor is denoted as .

6. A monitoring device for the ice thickness of a tension tower conductor, applied to the monitoring method for the ice thickness of a tension tower conductor as described in claim 1, characterized in that, The device includes: The data acquisition module is used to acquire basic monitoring data and real-time monitoring data of the tension tower at the current monitoring time. The real-time monitoring data includes the real-time total tension of the conductor of the tension tower, the tilt angle of the insulator on the tension tower relative to the vertical direction, and micro-meteorological data. The basic monitoring data includes the average total tension of the conductor of the tension tower during the ice-free period, the horizontal and vertical distances between adjacent tension towers, the ice density, the conductor radius, and the number of conductor splits. The icing thickness calculation module is used to determine whether the tension tower conductor is currently iced based on the micro-meteorological data and the comparison between the real-time total tension and the average total tension; if the tension tower conductor is currently iced, the module calculates the net weight and horizontal tension of the tension tower conductor in the vertical direction based on the real-time total tension, the average total tension, and the tilt angle; calculates the total length of the tension tower conductor based on the conductor radius, the horizontal tension, the horizontal distance, and / or the vertical distance; and calculates the icing thickness of the tension tower conductor based on the net weight, the icing density, the total length, the conductor radius, and the number of conductor splits.

7. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, the processor performs the steps of the method as described in any one of claims 1 to 5.

8. A monitoring device for the ice thickness of a tension tower conductor, comprising a memory and a processor, characterized in that, The memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of the method as described in any one of claims 1 to 5.

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