An Insulator-Embedded Wireless Power Supply and Duplex Communication Coil

Abstract

The present invention relates to the field of power supply and communication technology for onboard equipment on high-voltage transmission lines, and in particular to an insulator-embedded wireless power supply and duplex communication coil. It comprises a high-voltage end embedded coil, a relay coil and a low-voltage end embedded coil embedded in the insulator. By coupling the power transmitting, relaying and receiving coils, it overcomes the insulation problem between high and low voltage equipment, and provides stable power support for online monitoring equipment on high-voltage transmission lines. In addition, the system adopts independent uplink and downlink data transmission paths to ensure the stability of two-way communication. Uplink data transmission sends monitoring data from the high-voltage side to the low-voltage side, and downlink data transmission realizes the sending of control instructions to the high-voltage side equipment, and the two do not interfere with each other. Through the magnetic core arrangement and coil decoupling design, the present invention effectively eliminates the crosstalk of power transmission on data transmission, enhances the safety, insulation performance and environmental adaptability of the system, and is suitable for online monitoring and management of high-voltage transmission lines.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply and communication technology for onboard equipment of high-voltage transmission lines, and in particular to an insulator-embedded wireless power supply and duplex communication coil. Background Art

[0002] According to official statistics from the State Grid Corporation of China, by the end of 2020, a total of 35,868 kilometers of high-voltage transmission lines had been built nationwide. These towers and transmission lines are typically deployed outdoors, exposed to complex and changing geographical and climatic conditions, and are subject to natural disasters such as earthquakes, landslides, floods, mudslides, snow, typhoons, and thunderstorms. To provide real-time status information on transmission lines and prevent power-related disasters, online monitoring equipment is widely used. This includes online temperature monitoring devices and inspection robots installed on the high-voltage side of the transmission lines, as well as lightning monitoring equipment and tower tilt monitoring equipment installed on the low-voltage side.

[0003] However, the huge potential difference between the high and low voltage sides of the transmission line and the complex electromagnetic environment pose challenges to the power supply and data transmission of monitoring equipment:

[0004] 1) Regarding power supply, due to the lack of outdoor power sources, renewable energy generation equipment such as photovoltaics and batteries are typically used to power online monitoring equipment. However, photovoltaic power sources and batteries each present issues such as randomness and high maintenance costs. Currently, current transformers, which draw power from high-voltage transmission lines, are the preferred solution for providing a stable power supply for online monitoring equipment. While current transformers, also located on the high-voltage side, can directly power high-voltage monitoring equipment, the challenge remains in ensuring insulation levels while also providing power to low-voltage monitoring equipment.

[0005] 2) Similarly, in terms of communication, the high-voltage side monitoring equipment needs to transmit the monitoring data to the low-voltage side host computer for storage or processing. At the same time, the host computer also needs to send configuration instructions to the high-voltage side sensor. How to achieve duplex signal transmission between the high and low voltage sides while ensuring the insulation level is also an urgent problem to be solved. Summary of the Invention

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: an insulator-embedded wireless power supply and duplex communication coil, comprising an insulator high-voltage end embedded coil, an insulator relay embedded coil, and an insulator low-voltage end embedded coil embedded inside the insulator;

[0007] The insulator high-voltage end embedded coil includes a cross magnetic core, a power transmitting coil, a power transmitting coil compensation capacitor, an uplink data transmitting coil, an uplink data transmitting coil compensation capacitor, a downlink data receiving coil, a downlink data receiving coil compensation capacitor, a high-voltage end first terminal, a high-voltage end second terminal, a high-voltage end third terminal, a high-voltage end fourth terminal, a high-voltage end fifth terminal and a high-voltage end sixth terminal;

[0008] The insulator relay embedded coil includes a cross core, an electric energy relay coil, an electric energy relay coil compensation capacitor, an uplink data relay coil, an uplink data relay coil compensation capacitor, a downlink data relay coil and a downlink data relay coil compensation capacitor;

[0009] The embedded coil at the low-voltage end of the insulator includes a cross magnetic core, a power receiving coil, a power receiving coil compensation capacitor, an uplink data receiving coil, an uplink data receiving coil compensation capacitor, a downlink data transmitting coil, a downlink data transmitting coil compensation capacitor, a low-voltage end first terminal, a low-voltage end second terminal, a low-voltage end third terminal, a low-voltage end fourth terminal, a low-voltage end fifth terminal and a low-voltage end sixth terminal;

[0010] The power transmitting coil, the power relay coil and the power receiving coil are coupled to each other and are used to wirelessly transmit power from the high-voltage end of the transmission line to the low-voltage end of the transmission line;

[0011] The uplink data transmitting coil, the uplink data relay coil and the uplink data receiving coil are coupled to each other and are used to wirelessly transmit the uplink data from the high-voltage end of the transmission line to the low-voltage end of the transmission line;

[0012] The downlink data receiving coil, the downlink data relay coil and the downlink data transmitting coil are coupled to each other and are used to wirelessly transmit the downlink data from the low-voltage end of the transmission line to the high-voltage end of the transmission line;

[0013] The power transmitting coil, power relay coil, power receiving coil, uplink data transmitting coil, uplink data relay coil, uplink data receiving coil, downlink data receiving coil, downlink data relay coil and downlink data transmitting coil are decoupled from each other to eliminate crosstalk between the coils.

[0014] Furthermore, the power transmitting coil, the power relay coil and the power receiving coil are coupled to each other to wirelessly transmit power from the high voltage end to the low voltage end;

[0015] The uplink data transmitting coil, the uplink data relay coil and the uplink data receiving coil are coupled to each other and are used to wirelessly transmit the uplink data from the high-voltage end to the low-voltage end;

[0016] The downlink data receiving coil, the downlink data relay coil and the downlink data transmitting coil are coupled to each other and are used to wirelessly transmit the downlink data from the low-voltage end to the high-voltage end;

[0017] The power transmitting coil, power relay coil and power receiving coil are power transmission system coils;

[0018] The uplink data transmitting coil, uplink data relay coil and uplink data receiving coil are uplink data transmission system coils;

[0019] The downlink data receiving coil, downlink data relay coil and downlink data transmitting coil are downlink data transmission system coils;

[0020] The power transmission system coil, the uplink data transmission system coil and the downlink data transmission system coil are decoupled from each other to eliminate crosstalk between the coils.

[0021] Furthermore, the power transmitting coil is a circular winding with a radius smaller than the insulator radius; the power transmitting coil compensation capacitor is connected in series with the second high-voltage terminal, and the first high-voltage terminal and the second high-voltage terminal are connected to the output end of the high-frequency inverter.

[0022] Furthermore, a cross magnetic core is placed on the plane where the electric energy transmitting coil is located; an uplink data transmitting coil is wound on the horizontal magnetic rod of the cross magnetic core; the uplink data transmitting coil compensation capacitor is connected in series with the fifth terminal of the high-voltage end; the fifth terminal of the high-voltage end and the sixth terminal of the high-voltage end are connected to the output end of the first power amplifier.

[0023] Furthermore, a downlink data receiving coil is wound on the vertical magnetic rod at the high-voltage end of the cross magnetic core; the downlink data receiving coil compensation capacitor is connected in series with the third terminal at the high-voltage end; the third terminal and the fourth terminal at the high-voltage end are connected to the input end of the second signal filter.

[0024] Furthermore, the power receiving coil is a circular winding with a radius smaller than the insulator radius; the power receiving coil compensation capacitor is connected in series with the second low-voltage terminal; the first low-voltage terminal and the second low-voltage terminal are connected to the input end of the high-frequency rectifier.

[0025] Furthermore, a cross magnetic core is placed on the plane where the power receiving coil is located; an uplink data receiving coil is wound on the horizontal magnetic rod of the cross magnetic core; the uplink data receiving coil compensation capacitor is connected in series with the fifth terminal of the low-voltage end; the fifth terminal of the low-voltage end and the sixth terminal of the low-voltage end are connected to the output end of the first signal filter.

[0026] Furthermore, a downlink data transmitting coil is wound on the vertical magnetic rod at the low voltage end of the cross magnetic core; the downlink data transmitting coil compensation capacitor is connected in series with the low voltage end third terminal; the low voltage end third terminal and the low voltage end fourth terminal are connected to the output end of the second power amplifier.

[0027] Furthermore, the power relay coil is a circular winding, and its radius is smaller than the insulator radius; the power relay coil compensation capacitor is connected in series with the circular winding of the power relay coil.

[0028] Furthermore, a cross magnetic core is placed on the plane where the power relay coil is located; an uplink data relay coil is wound on the horizontal magnetic bar at the relay end of the cross magnetic core; and the uplink data relay coil compensation capacitor is connected in series with the circular winding of the uplink data relay coil.

[0029] Furthermore, a downlink data relay coil is wound on the vertical magnetic rod at the relay end of the cross magnetic core; and the downlink data relay coil compensation capacitor is connected in series with the circular winding of the downlink data relay coil.

[0030] The beneficial effects of the present invention are:

[0031] 1. Achieve efficient and stable wireless power supply:

[0032] Through a high-frequency inverter and power transmission coils, energy from the high-voltage side is wirelessly transmitted to the low-voltage side. This eliminates the need for physical wiring, overcoming the insulation challenges of traditional power supply methods and providing continuous and stable power to online monitoring equipment on the transmission lines. Furthermore, a high-frequency rectifier combined with a DC / DC converter provides a stable DC power supply, ensuring reliable operation of monitoring equipment and reducing the possibility of power outages.

[0033] 2. Two-way communication without contact and mutual interference:

[0034] The orthogonal uplink and downlink data transmission coil structures enable bidirectional communication of uplink and downlink data, with independent uplink and downlink signal transmission channels preventing interference. This decoupling design ensures stable data transmission, enabling reliable transmission of monitoring data and control commands. The data transmission relay design increases communication distance and ensures signal stability in complex transmission line environments.

[0035] 3. Effectively avoid electromagnetic interference:

[0036] The power transmission system and data transmission system are decoupled from each other, and the cross-core arrangement prevents power transmission from interfering with data transmission. This design ensures that wireless power delivery and duplex data communication systems coexist in the same structure without interfering with each other, improving the overall performance and reliability of the system.

[0037] 4. Reduce maintenance and wiring costs:

[0038] Because this system enables wireless power supply and bidirectional communication, it eliminates the need for physical cabling between high-voltage and low-voltage equipment, significantly reducing wiring costs. Furthermore, wireless transmission reduces the risk of damage to external power supplies and cables, thereby lowering subsequent maintenance costs. Optimized compensation capacitors within the coil further enhance power transmission efficiency and reduce energy consumption.

[0039] 5. Enhanced system safety and insulation performance:

[0040] The power and data transmission coils are embedded within the insulators, meeting high-voltage insulation requirements and eliminating the risk of insulator breakdown, ensuring the safety of high-voltage transmission lines and the long-term stable operation of the equipment. The system utilizes contactless transmission, eliminating the risk of direct connection to equipment in high-voltage environments, thereby enhancing the safety of the monitoring equipment.

[0041] 6. Adapt to various complex environments:

[0042] The system design is particularly suitable for transmission lines in complex outdoor environments (such as high altitude and mountainous terrain), and can maintain high power supply and communication reliability even under the influence of natural disasters such as earthquakes, floods, and typhoons. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 , a schematic diagram of an insulator-embedded wireless power supply and duplex communication coil according to an embodiment of the present invention.

[0044] Figure 2 , a schematic diagram of the structure of an insulator high-voltage end embedded coil of an insulator embedded wireless power supply and duplex communication coil according to an embodiment of the present invention.

[0045] Figure 3 , a schematic diagram of the structure of an embedded coil in an insulator relay end of an insulator-embedded wireless power supply and duplex communication coil according to an embodiment of the present invention.

[0046] Figure 4 , a schematic diagram of the structure of an insulator low-voltage end embedded coil of an insulator embedded wireless power supply and duplex communication coil according to an embodiment of the present invention.

[0047] Figure 5 , a structural diagram of an insulator-embedded wireless power supply and duplex communication system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the present invention and make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. The illustrative embodiments of the present invention and their description are only used to explain the present invention and are not intended to further limit the present invention.

[0049] Example 1

[0050] like Figure 1 As shown, Example 1 proposes an insulator-embedded wireless power supply and duplex communication coil, including an insulator high-voltage end embedded coil, an insulator relay embedded coil and an insulator low-voltage end embedded coil embedded inside the insulator.

[0051] For any insulator with N sections, the insulator sections are named from Section 1 to Section N in sequence from the high-voltage end to the low-voltage end of the transmission line.

[0052] In this embodiment, according to the voltage value of the high-voltage transmission line and the working parameters of the online monitoring equipment, the number of insulator sections is determined to be 5, including: 1 insulator with an embedded coil at the high-voltage end, which is the first section; 1 insulator with an embedded coil at the low-voltage end, which is the fifth section; and 3 insulators with embedded coils at the relay ends, which are intermediate sections.

[0053] like Figure 2 As shown, the embedded coil at the high-voltage end of the insulator (Section 1) includes: a cross magnetic core 1, a power transmitting coil 2, a power transmitting coil compensation capacitor 3, an uplink data transmitting coil 4, an uplink data transmitting coil compensation capacitor 5, a downlink data receiving coil 6, a downlink data receiving coil compensation capacitor 7, a high-voltage end first terminal 8, a high-voltage end second terminal 9, a high-voltage end third terminal 10, a high-voltage end fourth terminal 11, a high-voltage end fifth terminal 12 and a high-voltage end sixth terminal 13.

[0054] like Figure 3 As shown, the insulator relay embedded coil (middle section) includes: a cross magnetic core 1, an electric energy relay coil 14, an electric energy relay coil compensation capacitor 15, an uplink data relay coil 16, an uplink data relay coil compensation capacitor 17, a downlink data relay coil 18 and a downlink data relay coil compensation capacitor 19.

[0055] like Figure 4 As shown, the embedded coil at the low-voltage end of the insulator (Section 5) includes: a cross magnetic core 1, a power receiving coil 20, a power receiving coil compensation capacitor 21, an uplink data receiving coil 22, an uplink data receiving coil compensation capacitor 23, a downlink data transmitting coil 24, a downlink data transmitting coil compensation capacitor 25, a low-voltage end first terminal 26, a low-voltage end second terminal 27, a low-voltage end third terminal 28, a low-voltage end fourth terminal 29, a low-voltage end fifth terminal 30 and a low-voltage end sixth terminal 31.

[0056] Furthermore, the power transmitting coil 2 is a circular winding, and its radius is smaller than the insulator radius; the power transmitting coil compensation capacitor 3 is connected in series with the second high-voltage terminal 9, and the first high-voltage terminal 8 and the second high-voltage terminal 9 are connected to the output end of the high-frequency inverter.

[0057] Furthermore, a cross magnetic core 1 is placed on the plane where the power transmission coil 2 is located; an uplink data transmission coil 4 is wound on the horizontal magnetic bar of the cross magnetic core 1; the uplink data transmission coil compensation capacitor 5 is connected in series with the high-voltage end fifth terminal 12; the high-voltage end fifth terminal 12 and the high-voltage end sixth terminal 13 are connected to the output end of the first power amplifier.

[0058] Furthermore, a downlink data receiving coil 6 is wound on the vertical magnetic rod at the high-voltage end of the cross magnetic core 1; the downlink data receiving coil compensation capacitor 7 is connected in series with the high-voltage end third terminal 10; the high-voltage end third terminal 10 and the high-voltage end fourth terminal 11 are connected to the input end of the second signal filter.

[0059] Furthermore, the values of the inductance of the coil embedded in the high-voltage end of the insulator and its corresponding compensation capacitor satisfy the following relationship:

[0060]

[0061] Where ω is the system operating angular frequency, j is the imaginary unit, L tp is the inductance of the power transmitting coil 1, L tus is the inductance of the uplink data transmitting coil 4, L rds is the inductance of the downlink data receiving coil 6, C tp is the capacitance value of the power transmission coil compensation capacitor 3, C tus The capacitance value of the uplink data transmission coil compensation capacitor 5, C rds The capacitance value of capacitor 7 is compensated for the downlink data receiving coil.

[0062] Furthermore, the power receiving coil 20 is a circular winding with a radius smaller than the insulator radius; the power receiving coil compensation capacitor 21 is connected in series with the low-voltage end second terminal 27; the low-voltage end first terminal 26 and the low-voltage end second terminal 27 are connected to the input end of the high-frequency rectifier.

[0063] Furthermore, a cross magnetic core 1 is placed on the plane where the power receiving coil 20 is located; an uplink data receiving coil 22 is wound on the horizontal magnetic bar of the cross magnetic core 1; the uplink data receiving coil compensation capacitor 23 is connected in series with the low-voltage end fifth terminal 30; the low-voltage end fifth terminal 30 and the low-voltage end sixth terminal 31 are connected to the output end of the first signal filter.

[0064] Furthermore, a downlink data transmitting coil 24 is wound on the vertical magnetic rod at the low-voltage end of the cross magnetic core 1; the downlink data transmitting coil compensation capacitor 25 is connected in series with the low-voltage end third terminal 28; the low-voltage end third terminal 28 and the low-voltage end fourth terminal 29 are connected to the output end of the second power amplifier.

[0065] Furthermore, the values of the inductance of the low-voltage embedded coil of the insulator and its corresponding compensation capacitance satisfy the following relationship:

[0066]

[0067] Where ω is the system operating angular frequency, j is the imaginary unit, L rp is the inductance of the power receiving coil 20, L rus is the inductance of the uplink data receiving coil 22, L tds is the inductance of the downlink data transmitting coil 24, C rp The inductance value of the power receiving coil compensation capacitor 21, C rus The inductance value of the uplink data receiving coil compensation capacitor 23, C tp The inductance value of the downlink data transmission coil compensation capacitor is 25.

[0068] Furthermore, the power relay coil 14 is a circular winding, and its radius is smaller than the insulator radius; the power relay coil compensation capacitor 15 is connected in series with the circular winding of the power relay coil 14.

[0069] Furthermore, a cross core 1 is placed on the plane where the power relay coil 14 is located; an uplink data relay coil 16 is wound on the horizontal magnetic bar at the relay end of the cross core 1; and the uplink data relay coil compensation capacitor 17 is connected in series with the circular winding of the uplink data relay coil 16.

[0070] Furthermore, a downlink data relay coil 18 is wound on the vertical magnetic rod at the relay end of the cross magnetic core 1 ; the downlink data relay coil compensation capacitor 19 is connected in series with the circular winding of the downlink data relay coil 18 .

[0071] Furthermore, the values of the inductance of the embedded coil of the insulator relay and its corresponding compensation capacitance satisfy the following relationship:

[0072]

[0073] Where ω is the system operating angular frequency, j is the imaginary unit, L pi is the inductance of the power relay coil 14, L usi is the inductance of the uplink data relay coil 16, L dsi is the inductance of the downlink data relay coil 18, C pi The inductance value of the compensation capacitor of the power relay coil is 15, Cusi The inductance value of the uplink data relay coil compensation capacitor is 17, C dsi The inductance value of capacitor 19 is compensated for the downlink data relay coil.

[0074] Furthermore, the power transmitting coil 2, the power relay coil 14 and the power receiving coil 20 are the power transmission system coils; the uplink data transmitting coil 4, the uplink data relay coil 16 and the uplink data receiving coil 22 are the uplink data transmission system coils; the downlink data receiving coil 6, the downlink data relay coil 18 and the downlink data transmitting coil 24 are the downlink data transmission system coils.

[0075] Furthermore, the power transmitting coil 2, the power relay coil 14 and the power receiving coil 20, i.e., the power transmission system coils are coupled to each other, so that energy can be wirelessly transmitted from the high voltage side to the low voltage side;

[0076] Furthermore, the uplink data transmitting coil 4, the uplink data relay coil 16 and the uplink data receiving coil 22, i.e., the uplink data transmission system coils are coupled to each other, so that the uplink data can be wirelessly transmitted from the high voltage side to the low voltage side;

[0077] Furthermore, the downlink data receiving coil 6 , the downlink data relay coil 18 and the downlink data transmitting coil 24 , ie, the downlink data transmission system coils, are coupled to each other, so that the downlink data can be wirelessly transmitted from the low voltage side to the high voltage side.

[0078] Furthermore, the power transmission system coil, the uplink data transmission system coil and the downlink data transmission system coil are decoupled from each other, so that the power transmission system has no crosstalk to the data transmission system, and there is no crosstalk between the uplink and downlink data transmission systems.

[0079] Furthermore, the insulator described in this embodiment uses epoxy resin as the insulating material of the multi-stage magnetic resonance coupling insulator. Currently, commonly used composite insulator materials include silicone rubber and epoxy resin. Among them, epoxy resin insulation material has excellent mechanical properties, light weight, high mechanical strength, strong adhesion, and easy curing. It can achieve the purpose of preventing bird pecking, resisting strong wind damage, and resisting trampling. It is convenient for line maintenance and installation and transportation. By selecting various different curing agents, epoxy resin can be cured in almost the temperature range of 0 to 180°C. If the multi-stage magnetic resonance module is embedded in the epoxy resin insulation material, it can not only ensure the stability of the position and structure of the magnetic resonance coil, but also facilitate the selection of a processing environment that does not affect the performance of the magnetic resonance coil and the magnetic core within a wide curing temperature range.

[0080] Furthermore, the cross core 1 is also provided with a through hole for the core rod of the high-voltage transmission line insulator to pass through, so that the cross core 1 is not affected by the stress area passing through the high-voltage transmission line. Without changing the original insulator structure, the wireless power supply and duplex communication effect of the insulator-embedded wireless power supply and duplex communication coil described in this embodiment is achieved.

[0081] Example 2

[0082] Based on the insulator embedded wireless power supply and duplex communication coil proposed in Example 1, Figure 5 As shown, embodiment 2 of the present invention provides an insulator-embedded wireless power supply and duplex communication system applicable to the coil, which is mainly used for power supply and bidirectional signal exchange for online monitoring equipment of transmission lines, including:

[0083] Wireless power supply module, used to realize wireless power transmission from the high-voltage side to the low-voltage side of the transmission line, providing power for online monitoring equipment installed on the transmission line;

[0084] The uplink data transmission module transmits the data collected by the high-voltage monitoring equipment on the high-voltage side of the transmission line to the low-voltage monitoring equipment and the host computer on the low-voltage side of the transmission line for monitoring the operating status of the transmission line;

[0085] The downlink data transmission module transmits the low-voltage monitoring equipment on the low-voltage side of the transmission line and the command data of the host computer to the high-voltage monitoring equipment on the high-voltage side of the transmission line, thereby realizing remote control and management of the high-voltage monitoring equipment on the high-voltage side of the transmission line;

[0086] The wireless power supply module, the uplink data transmission module and the downlink data transmission module are electrically connected in sequence.

[0087] Furthermore, the wireless power supply module includes a high-voltage line-loaded mutual inductor, an industrial frequency rectifier, a high-frequency inverter, a power transmitting coil 2, a power relay coil 14 and a power receiving coil 20, a high-frequency rectifier and a DC / DC converter;

[0088] The high-voltage line-loaded transformer is used to obtain electrical energy from the high-voltage transmission line and convert it into low-frequency alternating current, and the system provides electrical energy;

[0089] The input end of the power frequency rectifier is electrically connected to the output end of the high-voltage line load transformer, and is used to rectify the low-frequency alternating current output by the high-voltage line load transformer into direct current;

[0090] The input end of the high-frequency inverter is electrically connected to the output end of the power frequency rectifier, and is used to convert the direct current into high-frequency alternating current;

[0091] The power transmitting coil 2 is electrically connected to the output terminal of the high-frequency inverter, and is used to couple the high-frequency alternating current to the adjacent power relay coil 14 according to the electromagnetic coupling effect;

[0092] The power relay coil 14 is used to enhance the high-frequency alternating current transmission;

[0093] The power receiving coil 20 is used to receive the high-frequency alternating current transmitted from the power relay coil;

[0094] The input end of the high-frequency rectifier is electrically connected to the power receiving coil 20 and is arranged at the low-voltage end of the power transmission line to rectify the high-frequency alternating current into direct current;

[0095] The input end of the DC / DC converter is electrically connected to the output end of the high-frequency rectifier, and the direct current output by the high-frequency rectifier is further stabilized to supply power to the low-voltage monitoring equipment and the host computer.

[0096] The specific working process of the wireless power supply module is as follows:

[0097] The wireless power supply module uses a high-voltage line transformer as its power source. After being rectified by a power-frequency rectifier, it supplies power to a subsequent high-frequency rectifier. The high-frequency inverter converts the DC voltage into a high-frequency AC voltage, which is then connected to multiple power relay coils. The coil output is connected to a high-frequency rectifier, which converts the high-frequency AC power into a DC voltage. After passing through a subsequent DC / DC converter, the output voltage is stabilized and used to power the online monitoring equipment.

[0098] Furthermore, the uplink data transmission module includes a first signal modulator, a first power amplifier, an uplink data transmitting coil 4, an uplink data relay coil 16, an uplink data receiving coil 22, a first signal filter and a first signal demodulator;

[0099] The first signal modulator is electrically connected to the high-voltage detection device, and the first power amplifier is electrically connected to the first signal modulator. The first signal modulator and the first power amplifier are used to modulate and amplify the monitoring data collected by the high-voltage detection device to obtain the modulated and amplified monitoring data;

[0100] The uplink data transmitting coil 4 is electrically connected to the output end of the first power amplifier, and is used to transmit the modulated and amplified monitoring data to the uplink data relay coil 16 via wireless transmission;

[0101] The uplink data relay coil 16 is used to forward the modulated and amplified monitoring data received from the uplink data transmitting coil 4;

[0102] The uplink data receiving coil 22 is used to receive the modulated and amplified monitoring data sent from the uplink data relay coil 16 and transmit it to the low voltage detection device and the host computer.

[0103] Furthermore, the downlink data transmission module includes a second signal modulator, a second power amplifier, a downlink data transmitting coil 24, a downlink data relay coil 18, a downlink data receiving coil 6, a second signal filter and a second signal demodulator;

[0104] The second signal modulator is electrically connected to the low voltage detection device and the host computer, and the second power amplifier is electrically connected to the second signal modulator. The second signal modulator and the second power amplifier are used to modulate and amplify the command data of the low voltage detection device and the host computer to obtain the modulated and amplified command data;

[0105] The downlink data transmitting coil 24 is electrically connected to the output end of the second power amplifier, and is used to transmit the modulated and amplified command data to the downlink data relay coil 18 via wireless transmission;

[0106] The downlink data relay coil 18 is used to forward the modulated and amplified instruction data received from the downlink data transmitting coil 24;

[0107] The downlink data receiving coil 6 is used to receive the modulated and amplified instruction data sent from the downlink data relay coil 18 and transmit it to the high-voltage detection equipment.

[0108] The uplink and downlink data transmission modules share the same system-level architecture. The signal transmitter consists of a signal modulation system and a power amplifier, followed by multiple data relay coils. The coil outputs are then connected to a signal filter and a signal demodulator. The uplink data transmission system transmits monitoring data from the high-voltage online monitoring equipment to the low-voltage host computer. The downlink data transmission system transmits configuration data from the low-voltage host computer to the high-voltage online monitoring system.

[0109] The present invention is explained from the perspectives of purpose of use, effectiveness, progress and novelty. The practical progress it has is in compliance with the functional enhancement and use requirements emphasized by the Patent Law. The above description and drawings of this application are only preferred embodiments of this application and are not intended to limit this application. Therefore, all structures, devices, features, etc. that are similar or identical to those of this application, that is, all equivalent replacements or modifications made in accordance with the scope of this patent application, should fall within the scope of protection of this patent application.

[0110] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An insulator-embedded wireless power supply and duplex communication coil, comprising an insulator high-voltage end embedded coil, an insulator relay embedded coil, and an insulator low-voltage end embedded coil embedded in an insulator, characterized in that: The insulator high-voltage end embedded coil comprises a cross magnetic core (1), an electric energy transmitting coil (2), an electric energy transmitting coil compensation capacitor (3), an uplink data transmitting coil (4), an uplink data transmitting coil compensation capacitor (5), a downlink data receiving coil (6), a downlink data receiving coil compensation capacitor (7), a high-voltage end first terminal (8), a high-voltage end second terminal (9), a high-voltage end third terminal (10), a high-voltage end fourth terminal (11), a high-voltage end fifth terminal (12) and a high-voltage end sixth terminal (13); The insulator relay embedded coil comprises a cross magnetic core (1), an electric energy relay coil (14), an electric energy relay coil compensation capacitor (15), an uplink data relay coil (16), an uplink data relay coil compensation capacitor (17), a downlink data relay coil (18) and a downlink data relay coil compensation capacitor (19); The insulator low-voltage end embedded coil comprises a cross magnetic core (1), an electric energy receiving coil (20), an electric energy receiving coil compensation capacitor (21), an uplink data receiving coil (22), an uplink data receiving coil compensation capacitor (23), a downlink data transmitting coil (24), a downlink data transmitting coil compensation capacitor (25), a low-voltage end first terminal (26), a low-voltage end second terminal (27), a low-voltage end third terminal (28), a low-voltage end fourth terminal (29), a low-voltage end fifth terminal (30) and a low-voltage end sixth terminal (31); The power transmitting coil (2), the power relay coil (14) and the power receiving coil (20) are coupled to each other and are used to wirelessly transmit power from the high-voltage end of the power transmission line to the low-voltage end of the power transmission line; The uplink data transmitting coil (4), the uplink data relay coil (16) and the uplink data receiving coil (22) are coupled to each other and are used to wirelessly transmit uplink data from the high-voltage end of the transmission line to the low-voltage end of the transmission line; The downlink data receiving coil (6), the downlink data relay coil (18) and the downlink data transmitting coil (24) are coupled to each other and are used to wirelessly transmit downlink data from the low-voltage end of the transmission line to the high-voltage end of the transmission line; The power transmitting coil (2), the power relay coil (14), and the power receiving coil (20) are coils of the power transmission system; The uplink data transmitting coil (4), the uplink data relay coil (16), and the uplink data receiving coil (22) are uplink data transmission system coils; The downlink data receiving coil (6), the downlink data relay coil (18) and the downlink data transmitting coil (24) are downlink data transmission system coils; The power transmission system coil, the uplink data transmission system coil and the downlink data transmission system coil are decoupled from each other to eliminate crosstalk between the coils; The electric energy transmitting coil (2) is a circular winding, and its radius is smaller than the insulator radius; the electric energy transmitting coil compensation capacitor (3) is connected in series with the high-voltage end second terminal (9); A cross magnetic core (1) is placed on the plane where the electric energy transmitting coil (2) is located; an uplink data transmitting coil (4) is wound on the horizontal magnetic bar of the cross magnetic core (1); the uplink data transmitting coil compensation capacitor (5) is connected in series with the fifth terminal (12) of the high-voltage end; A downlink data receiving coil (6) is wound on the vertical magnetic rod at the high-voltage end of the cross magnetic core (1); a downlink data receiving coil compensation capacitor (7) is connected in series with a third terminal (10) at the high-voltage end; The power receiving coil (20) is a circular winding with a radius smaller than the insulator radius; the power receiving coil compensation capacitor (21) is connected in series with the low-voltage end second terminal (27); A cross magnetic core (1) is placed on the plane where the electric energy receiving coil (20) is located; an uplink data receiving coil (22) is wound on the horizontal magnetic bar of the cross magnetic core (1); the uplink data receiving coil compensation capacitor (23) is connected in series with the low-voltage end fifth terminal (30); A downlink data transmitting coil (24) is wound on the vertical magnetic rod at the low-voltage end of the cross magnetic core (1); a downlink data transmitting coil compensation capacitor (25) is connected in series with a low-voltage end third terminal (28); The power relay coil (14) is a circular winding with a radius smaller than the insulator radius; the power relay coil compensation capacitor (15) is connected in series with the circular winding of the power relay coil (14); An uplink data relay coil (16) is wound on the horizontal magnetic bar at the relay end of the cross magnetic core (1); the uplink data relay coil compensation capacitor (17) is connected in series with the circular winding of the uplink data relay coil (16); A downlink data relay coil (18) is wound on a vertical magnetic bar at the relay end of the cross magnetic core (1); and the downlink data relay coil compensation capacitor (19) is connected in series with the circular winding of the downlink data relay coil (18).

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