A high-voltage transmission line vibration de-icing device based on electromagnetic mutual induction power pickup

Abstract

The present application relates to the technical field of high-voltage transmission line disaster prevention and intelligent operation and maintenance, and particularly relates to a high-voltage transmission line vibration deicing device based on electromagnetic mutual induction power taking, which comprises a box shell, the box shell is composed of a box upper cover and a box body, a high-voltage power taking module, a rectification energy storage module, a vibration control module and a vibration generation module are arranged in the box shell, an electromagnetic mutual induction non-contact power taking mode is adopted, induced power is directly obtained from the alternating electromagnetic field of the high-voltage transmission line, an external power supply is not needed, and manual battery replacement is not needed, the problem of power supply difficulty and insufficient endurance of field equipment of the high-voltage transmission line is completely solved, long-term unattended and all-weather online operation can be realized, the induced alternating current is converted into stable direct current and is efficiently stored in a manner of rectification voltage stabilization combined with super capacitor energy storage, the vibration mechanism can be driven to work when the energy storage voltage reaches a set threshold, and the energy conversion efficiency is high and the instantaneous output power is large.

Description

Technical Field

[0001] This invention relates to the field of disaster prevention and intelligent operation and maintenance technology for high-voltage transmission lines, specifically to a vibration de-icing device for high-voltage transmission lines based on electromagnetic inductance power supply. Background Technology

[0002] High-voltage transmission lines are the core infrastructure for power transmission. In cold, humid, and low-temperature rain and snow environments, ice can easily form on the surface of the conductors. Ice accumulation can significantly increase the load on the conductors, causing problems such as excessive sag, conductor galloping, and fatigue damage to hardware. In severe cases, it can lead to line breaks, tower collapses, and large-scale power outages, posing a major threat to the safe and stable operation of the power grid.

[0003] Existing de-icing technologies for high-voltage transmission lines mainly include manual de-icing, DC thermal melting de-icing, high-frequency pulse de-icing, and mechanical vibration de-icing. Among them, manual de-icing is inefficient and has high operational risks, making it difficult to meet the needs of large-scale line de-icing. DC thermal melting de-icing and high-frequency pulse de-icing consume a lot of energy, cause significant interference to the power grid, and have high equipment deployment and maintenance costs. Mechanical vibration de-icing, with its advantages of low energy consumption, fast de-icing response, and minimal damage to the line itself, has become the mainstream technology for ice control.

[0004] However, current vibration de-icing devices generally rely on external power sources or independent batteries. External power sources are difficult to deploy in high-voltage field scenarios, while independent batteries have problems such as limited battery life, the need for regular replacement, and performance degradation in low-temperature environments, which prevents the devices from operating stably online for a long time. At the same time, most existing equipment does not have the ability to obtain power without contact, and its power supply safety, structural adaptability, and level of intelligence are insufficient in high-voltage and strong electromagnetic environments, making it difficult to meet the requirements of all-weather, automated, and unattended de-icing operation and maintenance of high-voltage transmission lines.

[0005] Therefore, the industry urgently needs an intelligent vibration de-icing device that can directly obtain energy from high-voltage transmission lines, requires no external power supply, has a compact structure, and is adaptable to low-temperature icing environments, in order to solve the shortcomings of existing technologies such as limited power supply, insufficient battery life, and poor adaptability. Summary of the Invention

[0006] This invention addresses the technical problems existing in the prior art by providing a high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A high-voltage transmission line vibration de-icing device based on electromagnetic induction power extraction includes a housing shell, which is composed of a housing cover and a housing body. A high-voltage power extraction module, a rectifier energy storage module, a vibration control module, and a vibration generation module are disposed inside the housing shell. The high-voltage power extraction module achieves non-contact power extraction from the high-voltage transmission line through electromagnetic induction. The rectifier energy storage module is electrically connected to the high-voltage power extraction module. The vibration control module is signal-connected to both the rectifier energy storage module and the vibration generation module. The vibration generation module is adapted to the high-voltage transmission line through a mechanical structure.

[0008] In a preferred embodiment, the high-voltage power extraction module includes a current transformer, an infrared control main switch, a varistor, a resistor-capacitor absorption circuit, a current shunt circuit, and a Zener diode. The current transformer is a primary and secondary mutual inductance coil with a turns ratio of 1:100 to 1:500. The primary coil adopts an open structure.

[0009] In a preferred embodiment, the clamping voltage range of the varistor is 680–1000V, the RC snubber circuit and the current shunt circuit are cascaded in sequence, and the current shunt circuit is composed of a bidirectional thyristor and a matching resistor.

[0010] In a preferred embodiment, the rectifier energy storage module comprises a rectifier bridge, a supercapacitor module, a protection capacitor, a DC-DC voltage regulator output module, a power battery, and a microcontroller. The rectifier bridge is composed of unidirectional diodes connected in series. The supercapacitor module is composed of 30 to 100 supercapacitor units connected in series. Dual-display voltage sensors are configured at both ends of the supercapacitor module. The input end of the DC-DC voltage regulator output module is connected to the rectifier bridge, and the output end is connected to the power battery.

[0011] In a preferred embodiment, the dual-display voltage sensor collects the voltage signal across the supercapacitor module in real time and transmits it to the microcontroller. The microcontroller uses 6-20V and 54-180V as voltage thresholds to perform on / off switching control of the rectifier energy storage circuit and the power supply circuit. The rectifier energy storage module can output DC power of 3.2-40V with a rated power of no more than 10W.

[0012] In a preferred embodiment, the vibration control module includes a microcontroller, a voltage detection unit, a current detection unit, a temperature and humidity sensor, and a control drive circuit. The voltage detection unit and the current detection unit respectively collect the output electrical signal of the power battery, the electrical signal of the supercapacitor module, and the system operating electrical signal. The electrical signal acquisition terminal is connected to the microcontroller, and the signal terminal of the temperature and humidity sensor is connected to the microcontroller.

[0013] In a preferred embodiment, the temperature and humidity sensor is fixed to the outside of the housing body, and the detection signal of the temperature and humidity sensor is directly transmitted to the microcontroller. The microcontroller performs the switching control of the device's sleep and standby states based on the continuous detection data of the temperature and humidity sensor.

[0014] In a preferred embodiment, the vibration generating module comprises a vibration motor, an eccentric excitation mechanism, a motor upper cover, a motor lower cover, and a mechanical connection structure. The vibration motor is electrically connected to the power battery, the eccentric excitation mechanism is coaxially connected to the output end of the vibration motor, and the mechanical connection structure is used to assemble the vibration generating module as a whole onto a high-voltage transmission line.

[0015] In a preferred embodiment, the vibration motor is a frequency-adjustable excitation motor, the excitation frequency range covers the natural frequency range of icing on high-voltage transmission lines, and the rated excitation force range of the eccentric excitation mechanism is 800-1000N.

[0016] In a preferred embodiment, the top cover of the box is hinged to one side of the box body and connected by a mortise and tenon structure on the other side. The box body has 2 to 5 parallel shelves inside, and each shelf has an independent baffle on its outer side. The vibration control module has a built-in ice thickness calculation unit. The ice thickness calculation unit integrates temperature and humidity data and preset ice absorption coefficient parameters, and executes the trigger control of the vibration generation module according to the set thickness threshold.

[0017] The beneficial effects of this invention are: Employing a non-contact electromagnetic induction power extraction method, it directly obtains induced electrical energy from the alternating electromagnetic field of high-voltage transmission lines. This eliminates the need for external power supplies and manual battery replacements, completely solving the problems of power supply difficulties and insufficient endurance for field equipment on high-voltage transmission lines. It enables long-term unattended operation and 24 / 7 online operation.

[0018] By combining rectification and voltage regulation with supercapacitor energy storage, the induced AC power is converted into stable DC power and stored efficiently. When the energy storage voltage reaches the set threshold, it can drive the vibration mechanism to work. It has high energy conversion efficiency and large instantaneous output power, which can fully meet the short-term high power demand of vibration de-icing.

[0019] By employing a specific frequency and amplitude excitation design, the high-voltage transmission line can be equivalent to a simply supported beam model during vibration. The ice layer generates alternating bending stress under the action of periodic bending moment. When the stress exceeds the fatigue limit of the ice layer, fatigue failure and detachment will occur. The de-icing action is direct, energy-efficient, and does not damage the conductor body, resulting in high de-icing reliability.

[0020] By setting up multiple circuit protection structures, including varistor overvoltage protection, RC absorption circuit instantaneous impact protection, and current shunt circuit voltage regulation protection, the overvoltage, overcurrent, and electromagnetic interference problems in high-voltage line environments can be effectively suppressed, significantly improving the operational safety and environmental adaptability of the device.

[0021] Adopting a modular box structure design, the box is connected by hinges and tenons. The interior is equipped with shelves and baffles to achieve layered fixation and protection. It has a compact structure, is easy to install, and has strong sealing performance. It can adapt to complex field working conditions such as high cold, high humidity, and strong electromagnetic fields, and has outstanding mechanical stability and protective performance.

[0022] The intelligent vibration control system built around a microcontroller can collect parameters such as temperature, humidity, voltage, and current in real time, automatically switch between sleep, standby, and working states, and determine the icing status and de-icing timing based on environmental parameters. It has a high degree of automation and intelligence, which greatly reduces the cost of manual operation and maintenance.

[0023] The vibration generation module adopts a frequency-adjustable and excitation force-stable vibration motor and an eccentric excitation mechanism. The working frequency and excitation force can match the inherent characteristics of icing. The excitation energy transfer efficiency is high, which can effectively remove icing in a short time. The overall de-icing efficiency is high and the applicability is wide, which can meet the de-icing needs of high voltage transmission lines of different voltage levels. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a high-voltage transmission line vibration de-icing device based on electromagnetic inductance, as described in this application. Figure 2 This is a rear view of a high-voltage transmission line vibration de-icing device based on electromagnetic inductance, as described in this application example. Figure 3 This is a first internal schematic diagram of a high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply according to an example of this application. Figure 4 This is a schematic diagram of the vibration motor of a high-voltage transmission line vibration de-icing device based on electromagnetic inductance, as described in this application. Figure 5 This is a schematic diagram of the housing of a high-voltage transmission line vibration de-icing device based on electromagnetic inductance, as described in this application. Figure 6 This is a schematic diagram of the second internal structure of a high-voltage transmission line vibration de-icing device based on electromagnetic inductance, as described in this application.

[0025] In the diagram: 1. Top cover of the enclosure; 2. Enclosure body; 3. Hinge; 4. Buzzer; 5. Temperature and humidity sensor; 6. Top cover of the motor; 7. Bottom cover of the motor; 8. Vibration motor; 9. Digital ammeter; 10. Dual-display voltage sensor; 11. Air switch; 12. Supercapacitor module; 13. DC-DC regulated output module; 14. Circuit board; 15. Microcontroller; 16. Shelf; 17. Wire hole; 18. Baffle; 19. Power battery; 20. Current transformer. Detailed Implementation

[0026] The present invention will now be further described with reference to the accompanying drawings.

[0027] This embodiment provides a high-voltage transmission line vibration de-icing device based on electromagnetic induction power extraction, including a housing shell, which consists of a housing cover 1 and a housing body 2. Inside the housing shell are a high-voltage power extraction module, a rectifier energy storage module, a vibration control module, and a vibration generation module. The high-voltage power extraction module achieves non-contact power extraction from the high-voltage transmission line through electromagnetic induction. The rectifier energy storage module is electrically connected to the high-voltage power extraction module. The vibration control module is signal-connected to both the rectifier energy storage module and the vibration generation module. The vibration generation module is adapted to the high-voltage transmission line through a mechanical structure. The housing cover 1 and the housing body 2 are hinged on one side by a hinge 3 and connected on the other side by a mortise and tenon structure. The housing body 2 has 2 to 5 parallel-arranged shelf panels 16 inside, each shelf panel 16 having an independent baffle 18 on its outer side. The vibration control module has a built-in ice thickness calculation unit, which integrates temperature and humidity data and preset ice absorption coefficient parameters, and executes the trigger control of the vibration generation module based on a set thickness threshold.

[0028] like Figure 1 As shown, this device uses a closed box shell as the overall load-bearing and protective structure. The box shell consists of two parts: the box cover 1 and the box body 2.

[0029] The top cover 1 and the body 2 of the enclosure are hinged on the same side by a hinge 3 to achieve a flip-up hinge, while the other side adopts a tenon and mortise structure to lock them together, so that the enclosure has good sealing performance, structural strength and easy disassembly and assembly, and can meet the long-term protection requirements of outdoor high cold, high humidity and strong electromagnetic environment.

[0030] Inside the main body 2, 2 to 5 parallel storage plates 16 are fixedly installed. Each storage plate is evenly distributed along the height of the box and is used to place, support and isolate all electronic components and mechanical parts of the high-voltage power extraction module, rectifier energy storage module, vibration control module and vibration generation module in layers, so as to achieve a modular and orderly layout.

[0031] Each shelf 16 has an integrated baffle 18 on its outer edge. The baffle protrudes upward to form a limiting structure, which can effectively constrain the position of components under vibration conditions, avoid displacement, collision and poor contact, and improve the overall operational stability of the device.

[0032] The side wall of the enclosure body 2 is provided with a wire hole 17. The wire hole is a through hole, which is used to allow the high voltage transmission line to pass smoothly through the enclosure and to connect and assemble with the high voltage power take-off module inside the enclosure.

[0033] On the outer surface of the enclosure, a temperature and humidity sensor 5, a buzzer 4, a digital ammeter 9, a dual-display voltage sensor 10, and an air switch 11 are installed respectively. All of the above components are connected to the internal circuit through sealed wiring to realize environmental monitoring, status indication, electrical parameter display, and manual on / off control functions.

[0034] The high-voltage power extraction module includes a current transformer 20, an infrared control main switch, a varistor, a resistor-capacitor snubber circuit, a current shunt circuit, and a Zener diode. The current transformer 20 is a primary and secondary mutual inductance coil with a turns ratio of 1:100 to 1:500. The primary coil adopts an open structure. The clamping voltage range of the varistor is 680 to 1000V. The resistor-capacitor snubber circuit and the current shunt circuit are cascaded in sequence. The current shunt circuit consists of a bidirectional thyristor and a matching resistor.

[0035] Furthermore, such as Figure 2 and Figure 3 As shown, the high-voltage power extraction module uses the current transformer 20 as the core energy extraction component, and is composed of multi-level protection and voltage stabilization circuits, and is integrated and installed on the circuit board 14.

[0036] The current transformer 20 adopts an open-type primary and secondary mutual inductance coil structure. The primary coil is an openable structure that can be directly clamped onto the high-voltage transmission line, achieving non-contact electromagnetic induction power extraction without damaging the conductor structure. The primary and secondary turns ratio of the coil is set to 1:100 to 1:500, which can match the alternating magnetic field strength around the high-voltage transmission line and stably output induced electrical energy.

[0037] The high-voltage power supply module also includes an infrared control main switch, a varistor, a resistor-capacitor absorption circuit, a current shunt circuit, and a Zener diode.

[0038] The clamping voltage of the varistor is set to 680V~1000V. When a momentary overvoltage occurs in the circuit, the varistor quickly enters a low-resistance conduction state, which makes the primary and secondary mutual inductance coils equivalent to a short circuit, thereby achieving overvoltage protection for downstream electronic components.

[0039] A resistor-capacitor (RC) snubber circuit is connected in series in the circuit to absorb the instantaneous overvoltage and surge current generated during the commutation of the current shunt circuit.

[0040] The current shunt circuit is composed of two bidirectional thyristors and matching resistors. After voltage regulation, the output terminal of the high-voltage power extraction module is electrically connected to the rectifier energy storage module to stably deliver the induced AC power to the subsequent stage.

[0041] The rectifier energy storage module consists of a rectifier bridge, a supercapacitor module 12, a protection capacitor, a DC-DC voltage regulator output module 13, a power battery 19, and a microcontroller 15. The rectifier bridge is composed of unidirectional diodes connected in series. The supercapacitor module 12 is composed of 30 to 100 supercapacitor units connected in series. Dual-display voltage sensors 10 are configured at both ends of the supercapacitor module 12. The input end of the DC-DC voltage regulator output module 13 is connected to the rectifier bridge, and the output end is connected to the power battery 19.

[0042] like Figure 3 As shown, the rectifier energy storage module is arranged in the lower middle part of the main body 2 of the enclosure and is directly electrically connected to the high voltage power extraction module to realize the functions of AC rectification, energy storage, voltage stabilization and power distribution.

[0043] The rectifier energy storage module is specifically composed of a rectifier bridge, a supercapacitor module 12, a protection capacitor, a DC-DC voltage regulator output module 13, a power battery 19, and a microcontroller 15.

[0044] The rectifier bridge is composed of multiple unidirectional diodes connected in series, which can convert the AC power output from the high-voltage power module into DC power.

[0045] The dual-display voltage sensor 10 collects the voltage signal across the supercapacitor module 12 in real time and transmits it to the microcontroller 15. The microcontroller 15 uses 6-20V and 54-180V as voltage thresholds to perform on / off switching control of the rectifier energy storage circuit and the power supply circuit. The rectifier energy storage module can output DC power of 3.2-40V with a rated power of no more than 10W.

[0046] The supercapacitor module 12 is composed of 30 to 100 supercapacitor units connected in series, and has the characteristics of fast charging and discharging and high power output. The two ends of the supercapacitor module 12 are electrically connected to the dual-display voltage sensor 10, which can collect the voltage signal at both ends of the capacitor group in real time and transmit the signal to the microcontroller 15 for monitoring and logic judgment.

[0047] The input terminal of the DC-DC voltage regulator output module 13 is connected to the rectifier bridge. It can automatically identify the input voltage range and output a matching constant current and constant voltage DC power to charge the power battery 19.

[0048] The power battery 19 is installed at the bottom of the enclosure as a dedicated power supply for the vibration generation module, ensuring stable power output during vibration operation.

[0049] Through overall matching design, the rectifier energy storage module can output DC power of 3.2V to 40V with a rated power of no more than 10W, providing a stable and reliable power supply for the entire device.

[0050] The vibration control module includes a microcontroller 15, a voltage detection unit, a current detection unit, a temperature and humidity sensor 5, and a control drive circuit. The voltage detection unit and the current detection unit respectively collect the output electrical signals of the power battery 19, the electrical signals of the supercapacitor module 12, and the system working electrical signals. The electrical signal acquisition terminal is connected to the microcontroller 15. The signal terminal of the temperature and humidity sensor 5 is connected to the microcontroller 15. The temperature and humidity sensor 5 is fixed on the outside of the housing body 2. The detection signal of the temperature and humidity sensor 5 is directly transmitted to the microcontroller 15. The microcontroller 15 executes the switching control of the device's sleep and standby states based on the continuous detection data of the temperature and humidity sensor 5.

[0051] The vibration control module uses a single-chip microcomputer 15 as the core control unit, integrating voltage and current detection, environmental monitoring and drive control functions. It is arranged in the box near the outside for easy signal acquisition and wiring connection.

[0052] The vibration control module includes a microcontroller 15, a voltage detection unit, a current detection unit, a temperature and humidity sensor 5, and a control drive circuit.

[0053] The voltage detection unit and the current detection unit respectively collect the output voltage of the power battery 19, the voltage across the supercapacitor module 12, and the overall operating voltage and current of the system in real time. All electrical signals are connected to the microcontroller 15.

[0054] The temperature and humidity sensor 5 is fixedly installed on the outside of the housing to directly collect external ambient temperature and humidity data and transmit the data to the microcontroller 15 in real time.

[0055] The microcontroller 15 has a built-in logic control program that uses 6V~20V and 54V~180V as voltage thresholds for system energy management and working state switching, and automatically switches the rectifier energy storage circuit and power supply circuit on and off.

[0056] Meanwhile, the vibration control module integrates an ice thickness calculation unit, which can perform comprehensive calculations based on temperature and humidity data, rainfall and snowfall levels, and preset ice absorption coefficient parameters, and form a trigger control structure for the vibration generation module according to the set thickness threshold.

[0057] like Figure 4 As shown, the vibration generating module is installed in the box at the position corresponding to the excitation output. It is rigidly adapted to the high-voltage transmission line through a mechanical structure and is used to apply directional periodic excitation force to the conductor.

[0058] The vibration generating module consists of a vibration motor 8, an eccentric excitation mechanism, a motor upper cover 6, a motor lower cover 7, and a mechanical connection structure. The vibration motor 8 is electrically connected to the power battery 19. The eccentric excitation mechanism is coaxially connected to the output end of the vibration motor 8. The mechanical connection structure is used to assemble the vibration generating module onto the high-voltage transmission line. The vibration motor 8 is a frequency-adjustable excitation motor, and the excitation frequency range covers the natural frequency range of icing on the high-voltage transmission line. The rated excitation force range of the eccentric excitation mechanism is 800-1000N.

[0059] like Figure 5 and Figure 6 As shown, the vibration generating module consists of a vibration motor 8, an eccentric excitation mechanism, a motor upper cover 6, a motor lower cover 7, and a mechanical connection structure.

[0060] The vibration motor 8 is directly electrically connected to the power battery 19, and is independently powered by the battery to ensure stable excitation power.

[0061] The eccentric excitation mechanism is coaxially and fixedly connected to the output shaft of the vibration motor 8. Under the drive of the motor, it rotates at high speed to generate directional excitation force, with a rated excitation force range of 800N to 1000N.

[0062] The vibration motor 8 adopts a frequency adjustable design, with the working frequency range set from 7.35Hz to 11.31Hz. This frequency band covers the inherent frequency range of ice covering high-voltage transmission lines, which can cause the ice layer to resonate.

[0063] The mechanical connection structure is used to securely assemble the vibration generating module with the high-voltage transmission line, ensuring that the excitation force is efficiently and losslessly transmitted to the conductor body, so that the icing will cause structural failure under alternating stress.

[0064] This device adopts a modular, layered assembly method, with each module installed in an orderly manner within the enclosure according to its functional zones: The high-voltage power extraction module is positioned close to the conductor hole 17 to maintain the optimal coupling distance between the current transformer 20 and the high-voltage transmission line, thereby improving power extraction efficiency. The rectifier energy storage module is arranged in the middle of the enclosure, which shortens the electrical connection distance with the high-voltage power extraction module and the vibration control module, reduces line loss, and improves the power conversion efficiency. The vibration control module is positioned close to the outside of the enclosure to facilitate the routing and signal acquisition of temperature and humidity sensors, voltage and current detection elements.

[0065] The vibration generating module is installed close to the interface between the enclosure and the high-voltage transmission line, so that the excitation output direction is directly facing the conductor, ensuring that the excitation force acts directly and stably on the conductor.

[0066] The modules are reliably electrically connected through shielded wires. After assembly, the top cover 1 of the enclosure is fastened and locked to the main body 2 of the enclosure to form a fully enclosed integrated structure, enabling the device to adapt to complex working environments with high cold, high humidity and strong electromagnetic interference in the field, and achieve long-term stable online operation.

[0067] In the actual de-icing process, the entire device is assembled at the target location of the high-voltage transmission line, so that the high-voltage transmission line passes through the wire hole 17 opened on the main body 2 of the box and is fixed with the current transformer 20 in the high-voltage power take-off module in an open-type snap-fit, so as to ensure that the primary and secondary transformer coils maintain a stable electromagnetic coupling relationship with the high-voltage transmission line.

[0068] This invention utilizes the alternating electromagnetic field of high-voltage transmission lines to obtain induced electrical energy through a high-voltage power extraction module. This energy is then converted into direct current by a rectification and voltage regulation module and stored in a supercapacitor energy storage module. When the stored voltage reaches a set threshold (approximately 60V), the intelligent control module controls the vibration drive module to drive the vibration motor, causing the high-voltage transmission line to vibrate at a specific frequency and amplitude.

[0069] During vibration, high-voltage transmission lines can be modeled as simply supported beams, with the ice layer generating alternating bending stress under periodic bending moments. When the stress exceeds the fatigue limit of the ice material, the ice layer undergoes fatigue failure and detaches within a finite number of vibration cycles, thus achieving de-icing.

[0070] The alternating electromagnetic field surrounding the high-voltage transmission line continuously acts on the current transformer 20, generating induced alternating current through electromagnetic inductance. This current is then processed by a protection and voltage regulation circuit consisting of an infrared-controlled main switch, a varistor, a RC absorption circuit, a current shunt circuit, and a Zener diode before being delivered to the rectifier energy storage module. The rectifier bridge converts the AC output from the high-voltage power extraction module into DC power, which, after filtering, charges the supercapacitor module 12 for energy storage. A dual-display voltage sensor 10 collects the voltage across the supercapacitor module 12 in real time and transmits it to the microcontroller 15. When the voltage reaches a set threshold, the DC-DC regulated output module 13 activates, charging the power battery 19 in a constant current and constant voltage manner, providing a stable power supply for subsequent operations.

[0071] The temperature and humidity sensor 5 in the vibration control module continuously collects external ambient temperature and humidity signals and sends the data to the microcontroller 15. The voltage detection unit and current detection unit synchronously collect the output voltage of the power battery 19, the voltage of the supercapacitor module 12, and the system operating electrical signals, which are then comprehensively judged by the microcontroller 15. When the start-up conditions are met, the microcontroller 15 outputs a drive signal to the vibration generation module through the control drive circuit. The power battery 19 supplies power to the vibration motor 8, which drives the eccentric excitation mechanism to operate synchronously, generating a periodic excitation force of a set frequency and magnitude, which is then directly transmitted to the high-voltage transmission line through a mechanical connection structure.

[0072] The excitation force propagates along the axial and radial directions of the high-voltage transmission line, causing the conductor body to generate continuous and stable mechanical vibration. Under continuous vibration, the device maintains stable operation. The enclosed structure formed by the box cover 1 and the box body 2 provides protection for the internal modules. The storage plate 16 and the baffle 18 keep the components in place, ensuring that the device works reliably under vibration conditions.

[0073] During the de-icing process, the high-voltage power extraction module continuously draws power online, the rectifier energy storage module replenishes power in real time, the vibration control module maintains the system state according to the voltage threshold and environmental parameters, and the vibration generation module maintains the set excitation output. All modules work together to enable the device to achieve long-term stable structural operation.

Claims

1. A high-voltage transmission line vibration de-icing device based on electromagnetic inductance, characterized in that, Includes a box shell, which is composed of a box top cover (1) and a box body (2); The outer shell of the enclosure is equipped with a high-voltage power extraction module, a rectifier energy storage module, a vibration control module, and a vibration generation module. The high-voltage power extraction module achieves non-contact power extraction from the high-voltage transmission line through electromagnetic inductance. The rectifier energy storage module is electrically connected to the high-voltage power extraction module; The vibration control module is connected to the rectifier energy storage module and the vibration generation module respectively. The vibration generation module is adapted to the high-voltage transmission line through a mechanical structure.

2. The high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply according to claim 1, characterized in that, The high-voltage power extraction module includes a current transformer (20), an infrared control main switch, a varistor, a resistor-capacitor absorption circuit, a current shunt circuit, and a Zener diode. The current transformer (20) is a primary and secondary mutual inductance coil with a turns ratio of 1:100 to 1:

500. The primary coil adopts an open structure.

3. A high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply according to claim 2, characterized in that, The clamping voltage range of the varistor is 680 to 1000V. The RC snubber circuit and the current shunt circuit are cascaded in sequence. The current shunt circuit is composed of a bidirectional thyristor and a matching resistor.

4. A high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply according to claim 1, characterized in that, The rectifier energy storage module consists of a rectifier bridge, a supercapacitor module (12), a protection capacitor, a DC-DC voltage regulator output module (13), a power battery (19), and a microcontroller (15). The rectifier bridge is composed of unidirectional diodes connected in series. The supercapacitor module (12) is composed of 30 to 100 supercapacitor units connected in series. The two ends of the supercapacitor module (12) are equipped with dual-display voltage sensors (10). The input end of the DC-DC voltage regulator output module (13) is connected to the rectifier bridge, and the output end is connected to the power battery (19).

5. A high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply according to claim 4, characterized in that, The dual-display voltage sensor (10) collects the voltage signal across the supercapacitor module (12) in real time and transmits it to the microcontroller (15). The microcontroller (15) uses 6-20V and 54-180V as voltage thresholds to perform on / off switching control of the rectifier energy storage circuit and the power supply circuit. The rectifier energy storage module can output DC power of 3.2-40V with a rated power of no more than 10W.

6. A high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply according to claim 1, characterized in that, The vibration control module includes a microcontroller (15), a voltage detection unit, a current detection unit, a temperature and humidity sensor (5), and a control drive circuit. The voltage detection unit and the current detection unit respectively collect the output electrical signal of the power battery (19), the electrical signal of the supercapacitor module (12), and the system working electrical signal. The electrical signal acquisition terminal is connected to the microcontroller (15), and the signal terminal of the temperature and humidity sensor (5) is connected to the microcontroller (15).

7. A high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply according to claim 6, characterized in that, The temperature and humidity sensor (5) is fixed to the outside of the box body (2). The detection signal of the temperature and humidity sensor (5) is directly transmitted to the microcontroller (15). The microcontroller (15) performs the switching control of the device's sleep and standby states based on the continuous detection data of the temperature and humidity sensor (5).

8. A high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply according to claim 1, characterized in that, The vibration generating module consists of a vibration motor (8), an eccentric excitation mechanism, a motor upper cover (6), a motor lower cover (7), and a mechanical connection structure. The vibration motor (8) is electrically connected to the power battery (19). The eccentric excitation mechanism is coaxially connected to the output end of the vibration motor (8). The mechanical connection structure is used to assemble the vibration generating module onto the high-voltage transmission line.

9. A high-voltage transmission line vibration de-icing device based on electromagnetic inductance power supply according to claim 8, characterized in that, The vibration motor (8) is a frequency-adjustable excitation motor, and the excitation frequency range covers the inherent frequency range of high voltage transmission line icing. The rated excitation force range of the eccentric excitation mechanism is 800~1000N.

10. The high-voltage transmission line vibration de-icing device according to claim 1, characterized in that, The top cover (1) of the box body (2) is hinged to one side by a hinge (3) and connected by a tenon and mortise structure on the other side. The box body (2) has 2 to 5 parallel shelves (16) inside. Each shelf (16) has an independent baffle (18) on its outer side. The vibration control module has a built-in ice thickness calculation unit. The ice thickness calculation unit integrates temperature and humidity data and preset ice absorption coefficient parameters. It executes the trigger control of the vibration generation module according to the set thickness threshold.

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