Adaptive rapid wiring device for overhead line

Abstract

The invention relates to an overhead line self-adaptive rapid wiring device which comprises two wiring sections, the wiring sections are symmetrically spliced to form a conical conductive shell, the two ends of the conical conductive shell are each provided with a wire inlet guide nozzle, and a wiring mechanism is arranged in each wiring section; the wire inlet guide mouths of the wiring sections are arranged in a back-to-back manner; the multi-module replaceable intelligent monitoring device comprises a CT electricity taking module, a temperature and humidity monitoring module, a voltage and current monitoring module, a wireless communication module and an icing detection module, the CT electricity taking module is arranged outside the splicing position of the two wiring sections in a sleeving mode, and three module grooves are formed in the CT electricity taking module; connecting contacts are arranged on the three module grooves; a module male connecting plug and a module female connecting plug are arranged on the CT power taking module; the connecting contacts are used for butt joint and replacement of the temperature and humidity monitoring module, the voltage and current monitoring module, the wireless communication module and the icing detection module, rapid wiring can be completed, and normal and stable operation of the repaired cable is ensured.

Description

Technical Field

[0001] The invention relates to an overhead line adaptive quick wiring device, belonging to the technical field of wiring. Background Art

[0002] With the rapid development of the economy and the progress of society, the demand for electricity in all walks of life is increasing. As an important way of power transmission, the stability and reliability of overhead lines are directly related to the quality of power supply. In order to ensure the stable supply of electricity, it is necessary to continuously improve the overhead line cable repair technology to quickly and efficiently handle cable faults and reduce the time and scope of power outages. After long-term operation, the overhead lines built in the early days are affected by factors such as the natural environment and electrical stress. The cables are gradually aged, the insulation performance is reduced, the mechanical strength is weakened, and they are prone to damage, broken strands and other faults. According to statistics, the failure rate of overhead lines that have been in operation for more than 20 years is significantly higher than that of newly built lines. In order to extend the service life of overhead lines and ensure the safe operation of the power grid, advanced repair technologies are needed to repair and maintain aging cables. At the same time, in recent years, global climate change has led to frequent extreme weather events, such as heavy rain, strong winds, lightning strikes, ice and snow, etc. These extreme weather events have caused serious damage to overhead lines. For example, strong winds may cause cables to dance and break, ice and snow may cause cables to be overloaded by ice, and lightning strikes may cause cable insulation breakdown and other faults. In order to improve the ability of overhead lines to cope with extreme weather and quickly repair damaged cables, the development of cable repair technology has become imperative.

[0003] Chinese patent CN116885512A discloses "a cable connector and a method for connecting a cable and a cable connector". Through the cable fixing mechanism, the metal circuit inside the cable end is placed on the right connecting piece inside the right fixing groove, and then the right cover plate is covered, the right limit plate is put on, and the right threaded sleeve is rotated to continuously tighten the right threaded piece, and then the right limit plate is quickly fixed to complete the connection and fixation of the right plug and the cable end. The same operation can be repeated to complete the connection and fixation of the cable; but the overall operation is still relatively cumbersome, and the internal structure of the device is complex; at the same time, the existing technology has no way to perform comprehensive measurements of parameters such as temperature, humidity, voltage and current on the quality of the repaired line, and cannot ensure the normal and stable operation of the repaired cable. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides an overhead line adaptive quick wiring device, which can complete quick wiring and ensure the normal and stable operation of the repaired cable.

[0005] The technical solution of the present invention is as follows: An overhead line adaptive quick wiring device comprises two wiring segments, wherein the two wiring segments are symmetrically spliced ​​to form a conical conductive shell, both ends of the conical conductive shell are provided with an incoming line guide nozzle, and a wiring mechanism is arranged inside the wiring segment; the incoming line guide nozzles of the two wiring segments are arranged back to back; the adaptive quick wiring device also comprises a multi-module replaceable intelligent monitoring device, the multi-module replaceable intelligent monitoring device comprises a CT power supply module, a temperature and humidity monitoring module, a voltage and current monitoring module, a wireless communication module and an ice detection module, the CT power supply module is sleeved on the outside of the splicing of the two wiring segments, the CT power supply module is provided with three module grooves, the three module grooves are provided with connection contacts, the CT power supply module is also provided with a module male plug connector and a module female plug connector; the connection contacts are used for docking and replacing the temperature and humidity monitoring module, the voltage and current monitoring module, the wireless communication module and the ice detection module.

[0006] Among them, the wiring mechanism includes a clamping mechanism and a telescopic spring, the joints of the two wiring segments are interconnected and fixedly provided with an insulating isolation plate, one end of the telescopic spring is fixedly connected to the clamping mechanism, and the other end of the telescopic spring is fixedly connected to the insulating isolation plate.

[0007] Wherein, the clamping mechanism comprises three mutually independent fan-shaped components, the three fan-shaped components are arranged to slide in contact with the inner wall surface of the wiring segment, and the inner arc surface of the fan-shaped component is provided with a thread groove.

[0008] Wherein, spring steel balls are also arranged on the inner arc surface of the fan-shaped component.

[0009] Wherein, a metal protective sleeve for the cable conductor is arranged on the inner arc surface of one end of the clamping mechanism away from the insulating isolation plate.

[0010] Wherein, a groove structure is provided inwardly at the port on the spliced ​​side of the two wiring segments, and the insulating isolation plate is fixedly installed between the groove structures of the two wiring segments.

[0011] Among them, the ice detection module includes a multi-band microwave radar and a fiber grating composite sensor. The multi-band microwave radar emits microwave signals of different frequencies. When the microwave signals encounter the ice layer, they will be reflected and scattered. The reflected signals are analyzed to obtain ice information. The fiber grating composite sensor is based on photoelastic and thermo-optical effects. The changes in ambient temperature and stress will cause the central reflection wavelength to drift. By arranging the fiber grating composite sensors into an array, the ice conditions at different locations can be measured in a distributed manner. An ice thickness calculation model is established: , where h is the ice thickness, mm; is the time difference between microwave emission and reception, ns; c is the speed of light, is the dielectric constant of the ice layer, D is the line diameter, mm; the ice detection module also includes a deicing structure.

[0012] Among them, the deicing structure integrates three deicing modes, including a deflection motor deicing module, an electric pulse deicing module and a directional thermal melting deicing module; the deflection motor deicing module includes an adjustable frequency electromagnetic exciter; the electric pulse deicing module uses a pulse generator, and the critical breakdown energy is calculated by the formula: , where k is the ice adhesion coefficient, ; is the ice layer bonding strength, MPa, ; A is the effective area, ; h is the thickness of the ice layer, m; the directional hot melt deicing module includes a carbon fiber composite heating film, which is used to heat and de-ice.

[0013] Among them, it also includes an edge computing de-icing decision model, which calculates the ice load ratio in real time. ,in, is the actual ice load monitored in real time, kN / m²; is the preset design ice load threshold, kN / m²; ≥0.7, the third-level de-icing program will be automatically started.

[0014] Among them, the edge computing deicing decision model establishes deicing efficiency evaluation indicators: ,in, is the deicing area, cm²; is the energy consumption, kWh.

[0015] The present invention has the following beneficial effects: On the basis of adaptive rapid wiring, the present invention integrates multiple functions such as temperature and humidity monitoring, voltage and current data acquisition, Internet of Things communication, and high-voltage line CT power supply, realizes global perception, and provides strong support for the rapid repair and connection of overhead line cables and subsequent operation and maintenance; while realizing the rapid docking of traditional cables, the temperature and humidity monitoring module, voltage and current monitoring module, etc. on the device are used to monitor the status of the repaired cables and the environmental status in real time, which not only improves the efficiency of cable repair without power outages and the accuracy and comprehensiveness of abnormal fault warnings, but also effectively reduces the risk of failures caused by single factors, accidental factors or insufficient monitoring, and the cost of subsequent manual operation and maintenance. When the temperature, voltage, and current of the intermediate joint of the cable are detected to be abnormal or the external damage state exceeds the set threshold, the edge and platform can issue graphic alarms to quickly convey information to the operation and maintenance personnel, so that they can respond to the fault in time. Thereby avoiding the occurrence of secondary cable damage failures, which will cause losses to the local economy due to sudden power outages; The invention has good stability and adaptability, can quickly and accurately dock with overhead line cables, reduce the time and difficulty of manual operation, and improve repair efficiency. The clamping structure can ensure that the connection after docking is firm and reliable, and can withstand the tension of the cable and the force of the external environment; the docking part ensures sufficient contact area.

[0016] Due to the conical design of the present invention, which is large in the middle and small at both ends, it can be used for the repair and docking of 10kV - 350kV cables, covering multiple voltage levels from power distribution to transmission. The device body of the product is IP67-level waterproof and dustproof. At the same time, the power supply system of the device adopts CT high-voltage cable power supply, without the need for built-in batteries, and can ensure the normal and stable operation of the device in multiple environmental conditions such as severe cold, high temperature and water immersion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the internal structure of the conical conductive shell of the present invention; Figure 2 for Figure 1 Middle AA section view; Figure 3 This is a schematic diagram of the internal structure of the wiring segment of the present invention; Figure 4 for Figure 1 Middle BB cross section; Figure 5 This is a structural diagram of a multi-module replaceable intelligent monitoring device of the present invention; Figure 6 This is a diagram of the architecture of the multi-module replaceable intelligent monitoring device of the present invention; Figure 7 This is a structural diagram of the ice detection module.

[0018] The reference numerals in the figure represent: 1. Inlet guide nozzle; 2. Conical conductive shell; 3. Clamping mechanism; 4. Spring steel ball; 5. Cable conductor metal protective cover; 6. Telescopic spring; 7. Insulating isolation plate; 8. Groove structure; 9. CT power supply module; 10. Temperature and humidity monitoring module; 11. Voltage and current monitoring module; 12. Wireless communication module; 13. Connection contacts; 14. Module male connector; 15. Module female connector; 16. Cable; 17. Ice detection module; 18. Deflection motor deicing module; 19. Electric pulse deicing module; 20. Directional hot melt deicing module. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] See also Figures 1 to 7 , the invention provides a technical solution: An overhead line adaptive quick wiring device includes two wiring sections, the two wiring sections are symmetrically spliced ​​to form a conical conductive shell 2, both ends of the conical conductive shell 2 are provided with a line guide nozzle 1, the line guide nozzle 1 is a flared design, and it is convenient to insert a cable 16 into the conical conductive shell 2 for wiring; A clamping mechanism 3 and a telescopic spring 6 are arranged inside the wiring segment; the inlet guide nozzles 1 of the two wiring segments are arranged back to back, the joints of the two wiring segments are interconnected and fixedly provided with an insulating isolation plate 7, specifically, a groove structure 8 is arranged inwardly at the port on one side of the joint of the two wiring segments, the insulating isolation plate 7 is fixedly installed between the groove structures 8 of the two wiring segments, one end of the telescopic spring 6 is fixedly connected to the clamping mechanism 3, and the other end of the telescopic spring 6 is fixedly connected to the insulating isolation plate 7; the clamping mechanism 3 includes three fan-shaped components, the three fan-shaped components are arranged to fit the inner wall surface of the wiring segment, and the inner arc surface of the fan-shaped component is provided with a thread groove; specifically, the inner arc surface is processed with a three-order thread structure: coarse tooth segment: pitch 3mm, to achieve rapid bite; fine tooth segment: pitch 1.5mm, precise pressure transmission; the toothless segment provides final locking and forms a mechanical stop to prevent overpressure from damaging the cable; at the same time, the clamping surface is silver-plated with a thickness of ≥8μm, which can reduce the contact resistance; After the cable 16 is pulled from both sides into the line guide nozzles 1 of the two wiring sections, the cable 16 is moved toward the side of the insulating isolation plate 7 with force. At the same time, due to the mutual compression of the cable 16 and the three internally threaded fan-shaped components, the three fan-shaped components are synchronously driven to move toward the insulating isolation plate 7. At the same time, the end faces of the three fan-shaped components squeeze the telescopic spring 6 until the cable 16 hits the insulating isolation plate 7. Since the insulating isolation plate 7 is fixed, after the cable 16 is released, the activity space of the three fan-shaped components is expanded. Under the action of the telescopic spring 6, the telescopic spring 6 rebounds and pushes the clamping mechanism 3 backward. Since the conical conductive shell 2 is a conical structure, the clamping mechanism 3 is gradually reset, and the movable space inside the wiring section is reduced until the three internally threaded fan-shaped components are reset to clamp the cable 16, thereby clamping the cable 16, that is, completing the quick wiring work; As a preferred embodiment, a shape memory alloy sheet can be embedded in the conical conductive housing 2 to automatically adjust the clamping gap when the temperature changes by more than ±15°C. A spring steel ball 4 is also provided on the inner arc surface of the fan-shaped component, and the spring steel ball 4 is provided with a self-lubricating graphite coating. At the same time, due to the conical structure, the clamping mechanism 3 with the spring steel ball 4 will act between the conical conductive shell 2 and the cable 16 to form a three-point supported mechanically stable structure. The conical conductive shell 2 will push the spring steel ball 4 to move inward, thereby achieving a second clamping of the cable 16; Figure 3As shown, the other end of the telescopic spring 6 is clamped on the insulating isolation plate 7, and the insulating isolation plate 7 is fixed to the conical conductive housing 2 through a groove structure 8, so that it cannot move left and right at will, and also serves as a limit position for the insertion depth of the cable 16.

[0021] A cable conductor metal protective sleeve 5 is installed on the inner arc surface of the end of the clamping mechanism 3 away from the insulating isolation plate 7 to prevent the cable 16 from rubbing against the thread groove of the clamping mechanism 3 during the connection process and causing damage; When in use, the live operation is carried out in a load-removing manner, and the cables 16 to be repaired at both ends are inserted into the conical conductive housing 2 through the inlet guide nozzle 1 and the cable conductor metal protective sleeve 5, and then through the clamping mechanism 3, the cable 16 and the cable conductor metal protective sleeve 5 are pushed to the position of the insulating isolation plate 7 and released. Due to the action of the telescopic spring 6, the clamping mechanism 3 with the cable 16 is rebounded to the end of the conical conductive housing 2, thereby clamping the clamping mechanism 3 through the large to small structure of the conical conductive housing 2, and clamping cables 16 of multiple specifications and models through the threaded groove structure on the clamping mechanism 3. At the same time, the clamping mechanism 3 is also designed with a spring steel ball 4, which can realize the secondary clamping function. Since all the components are made of conductive metal materials, the contact surface of the cable 16 and the conduction of voltage and current are guaranteed. Thus, the purpose of rapid repair and connection is achieved. At the same time, a multi-module replaceable intelligent monitoring device is installed in the middle position of the conical conductive housing 2, which can collect relevant data and remotely monitor and alarm the repaired cable 16 in real time for a long time, thereby reducing the pressure of operation and maintenance in the later stage.

[0022] The multi-module replaceable intelligent monitoring device includes a CT power supply module 9, a temperature and humidity monitoring module 10, a voltage and current monitoring module 11 and a wireless communication module 12; the CT power supply module 9 is provided with a magnetic induction coil, a lightning protection circuit, an overvoltage clamping protection circuit, a rectifier circuit, a voltage stabilizing filter circuit, a data microprocessor chip, etc., and the specific content is the same as the prior art. The CT power supply module 9 is sleeved on the outside of the joint of the two wiring sections, and three module grooves are provided on the CT power supply module 9, and connection contacts 13 are provided on the three module grooves. The CT power supply module 9 is also provided with a module male plug connector 14; the connection contacts 13 are used to connect and replace the temperature and humidity monitoring module 10, the voltage and current monitoring module 11 and the wireless communication module 12; the modules on the CT power supply module 9 can be replaced and combined with each other, which is convenient to install, and thus realizes the collection function of different data parameters on the rapid wiring connection and repair device.

[0023] Each module converts the collected analog signal into a digital signal and outputs it to the processor. The processor gathers the digital signal and sends it to the platform or edge IoT gateway for processing and analysis through the wireless communication module 12, so as to achieve the purpose of remote data collection and monitoring. The CT power supply module 9 adopts an open-and-close buckle structure, which can realize fast opening and closing or mechanical locking, facilitates on-site installation and maintenance, and can adapt to harsh working conditions such as high vibration and high dust. The hardware circuit board of the device of the present invention adopts SMT surface mount welding technology to achieve automated production, combined with miniaturized PCB board design and modular assembly technology, significantly improving production efficiency. In terms of environmental adaptability, through the innovative use of layered buffer packaging technology-including inner layer thermal conductive silicone potting, middle layer elastic silicone rubber buffer layer and outer layer polyurethane protective coating three-level composite packaging structure, it can effectively cope with extreme temperature changes from -40°C to 85°C, mechanical shock and underwater 1 meter / 72 hours immersion and other harsh environmental challenges. In terms of appearance and structure, the multi-module replaceable intelligent monitoring device adopts a combined structure of 6061-T6 aviation aluminum alloy frame and V0-grade PC flame-retardant composite material, and its fire resistance grade reaches A0 standard; the quick wiring device adopts CNC one-piece molded aluminum alloy cavity packaging, combined with IP67-level sealing ring and waterproof breathable valve design, while maintaining structural strength, it achieves excellent dustproof and waterproof performance.

[0024] The multi-module replaceable intelligent monitoring device also includes an ice detection module 17, which is activated by docking with the connection contact 13; The present invention can add new sensor modules according to different monitoring requirements, such as adding a vibration sensor for detecting the vibration of the overhead cable 16, which is used to monitor the vibration of the cable 16 caused by factors such as strong winds, and prevent fatigue damage to the cable 16; adding an ice sensor for detecting ice coating, and grasping the ice thickness of the cable 16 in real time, to provide data support for deicing operations; Ice detection module 17 adopts a revolutionary multi-modal intelligent expansion architecture, which adds a special expansion system for deicing in extreme cold environments on the basis of existing functions; The ice detection module 17 includes a multi-band microwave radar and a fiber grating composite sensor. The multi-band microwave radar emits microwave signals of different frequencies, which will be reflected and scattered when encountering an ice layer. Because ice has different dielectric constants from other substances, microwave propagation characteristics are different. By analyzing the amplitude, phase, frequency, etc. of the reflected signal, ice information can be obtained. It has strong penetration ability, a large monitoring range, and is not affected by bad weather; the fiber grating composite sensor is based on photoelastic and thermo-optical effects, and changes in ambient temperature and stress will cause its central reflection wavelength to drift; arranging it into an array can be used for distributed measurement of ice conditions at different locations. When ice is applied, the weight and temperature changes of the ice layer affect the wavelength. Monitoring wavelength changes can sense ice thickness, temperature, etc. It has high measurement accuracy, strong resistance to electromagnetic interference, and can be measured in a distributed manner. The composite detection of ice by the two can be achieved through data fusion and collaborative work; Establish ice thickness calculation model: , where h is the ice thickness, mm; is the time difference between microwave emission and reception, ns; c is the speed of light, is the dielectric constant of the ice layer, D is the line diameter, mm; The ice detection module 17 also includes a deicing structure; the deicing structure integrates three deicing modes, including a deflection motor deicing module 18, an electric pulse deicing module 19 and a directional thermal melting deicing module 20; the deflection motor deicing module 18 is a frequency-adjustable electromagnetic exciter, configured with a 0.5-2kHz frequency-adjustable electromagnetic exciter, an output force ≥ 200N, and an amplitude accuracy of ±0.1mm; the electric pulse deicing module 19 uses a pulse generator, a 10kV / 100J high-voltage pulse generator, and the critical breakdown energy is calculated by the formula: , where k is the ice adhesion coefficient, ; is the ice layer bonding strength, MPa, ; A is the effective area, ; h is the thickness of the ice layer, m; the directional hot melt deicing module 20 includes a carbon fiber composite heating film, a power density of 50W / cm², supports PID temperature control algorithm, a thermal response time of <15s, and de-ices by heating the carbon fiber composite heating film.

[0025] The deicing efficiency is as follows: deflection motor deicing module 18: clearance rate ≥ 95% (residual ice thickness ≤ 1mm); electric pulse deicing module 19: when the ice thickness is less than 5mm, electric pulses can make the ice layer fall off from the line surface quickly, and the clearance rate is ≥ 95%; directional hot melt deicing module 20: clearance rate ≥ 99% (completely melt the ice layer); response time: from detecting the threshold ice thickness (such as 5mm) to starting deicing ≤ 30 seconds.

[0026] Energy consumption is controlled as follows: deflection motor deicing module 18: single deicing energy consumption ≤100Wh (continuous vibration for 5 minutes); electric pulse deicing module 19: the energy consumption of electric pulse deicing is only about 1 / 10 of that of ice melting; directional thermal melting deicing module 20: single heating energy consumption ≤500Wh (power 1kW, continuous 5 minutes).

[0027] Environmental adaptability: working temperature: -40℃~+70℃; wind resistance level: ≥12; protection level: IP67 (waterproof and dustproof).

[0028] It also includes an edge computing de-icing decision model, which calculates the ice load ratio in real time. ,in, is the actual ice load monitored in real time, kN / m²; is the preset design ice load threshold, kN / m²; ≥0.7, the three-level deicing program will be automatically started; and the deicing efficiency evaluation index will be established: ,in, is the deicing area, cm²; is the energy consumption, kWh.

[0029] As a preferred option, matching algorithms and performance indicators can also be used to develop an ice layer stress distribution algorithm, combined with temperature-humidity-wind speed multi-parameter coupling analysis to achieve: ice layer thickness resolution of ±0.5mm; ice type recognition accuracy >92%; automatic generation of a "Conductor Load Safety Factor Assessment Report".

[0030] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An overhead line adaptive quick connection device, characterized in that: The invention comprises two wiring segments, wherein the two wiring segments are symmetrically spliced ​​to form a conical conductive shell (2), both ends of the conical conductive shell (2) are provided with a line guide nozzle (1), and a wiring mechanism is arranged inside the wiring segment; the line guide nozzles (1) of the two wiring segments are arranged opposite to each other; the adaptive quick wiring device also comprises a multi-module replaceable intelligent monitoring device, wherein the multi-module replaceable intelligent monitoring device comprises a CT power supply module (9), a temperature and humidity monitoring module (10), a voltage and current monitoring module (11), and a wireless communication module (12 ) and an ice detection module (17), the CT power taking module (9) being sleeved on the outside of the joint of the two wiring segments, the CT power taking module (9) being provided with three module grooves, the three module grooves being provided with connection contacts (13), the CT power taking module (9) being further provided with a module male plug connector (14) and a module female plug connector (15); the connection contacts (13) being used for docking and replacing the temperature and humidity monitoring module (10), the voltage and current monitoring module (11), the wireless communication module (12) and the ice detection module (17).

2. An overhead line adaptive quick connection device according to claim 1, characterized in that: The wiring mechanism comprises a clamping mechanism (3) and a telescopic spring (6); the joints of the two wiring segments are interconnected and fixedly provided with an insulating isolation plate (7); one end of the telescopic spring (6) is fixedly connected to the clamping mechanism (3); and the other end of the telescopic spring (6) is fixedly connected to the insulating isolation plate (7).

3. An overhead line adaptive quick connection device as claimed in claim 2, characterized in that: The clamping mechanism (3) comprises three mutually independent fan-shaped components, the three fan-shaped components are arranged to slide in contact with the inner wall surface of the wiring segment, and the inner arc surface of the fan-shaped component is provided with a thread groove.

4. An overhead line adaptive quick connection device as claimed in claim 3, characterized in that: A spring steel ball (4) is also provided on the inner arc surface of the fan-shaped component.

5. An overhead line adaptive quick connection device as claimed in claim 4, characterized in that: A cable conductor metal protective sleeve (5) is mounted on the inner arc surface of one end of the clamping mechanism (3) away from the insulating isolation plate (7).

6. An overhead line adaptive quick connection device as claimed in claim 2, characterized in that: A groove structure (8) is provided inwardly recessed at the port on one side where the two wiring segments are spliced, and the insulating isolation plate (7) is fixedly installed between the groove structures (8) of the two wiring segments.

7. An overhead line adaptive quick connection device according to claim 1, characterized in that: The ice detection module (17) comprises a multi-band microwave radar and a fiber grating composite sensor. The multi-band microwave radar emits microwave signals of different frequencies. The microwave signals are reflected and scattered when encountering an ice layer. The reflected signals are analyzed to obtain ice information. The fiber grating composite sensor is based on photoelastic and thermo-optical effects. Changes in ambient temperature and stress will cause the central reflection wavelength to drift. By arranging the fiber grating composite sensors into an array, the ice conditions at different locations can be measured in a distributed manner. An ice thickness calculation model is established: , where h is the ice thickness, mm; is the time difference between microwave emission and reception, ns; c is the speed of light, is the dielectric constant of the ice layer, D is the line diameter, in mm; the ice coating detection module (17) also includes a deicing structure.

8. An overhead line adaptive quick connection device as claimed in claim 7, characterized in that: The deicing structure integrates three deicing modes, the three deicing modes comprising a deflection motor deicing module (18), an electric pulse deicing module (19) and a directional thermal melting deicing module (20); the deflection motor deicing module (18) comprises an adjustable frequency electromagnetic exciter; the electric pulse deicing module (19) uses a pulse generator, and the critical breakdown energy is calculated by the formula: , where k is the ice adhesion coefficient, ; is the ice layer bonding strength, MPa, ; A is the effective area, ; h is the thickness of the ice layer, m; the directional hot melt deicing module (20) comprises a carbon fiber composite heating film, and deicing is performed by heating the carbon fiber composite heating film.

9. An intelligent deicing system for overhead line wiring devices according to claim 8, characterized in that: It also includes an edge computing de-icing decision model, which calculates the ice load ratio in real time. ,in, is the actual ice load monitored in real time, kN / m²; is the preset design ice load threshold, kN / m²; ≥0.7, the third-level de-icing program will be automatically started.

10. An intelligent deicing system for overhead line wiring devices according to claim 9, characterized in that: The edge computing deicing decision model establishes deicing efficiency evaluation indicators: ,in, is the deicing area, cm²; is the energy consumption, kWh.

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