Insulator embedded type wireless power supply and duplex communication coil

Abstract

The invention relates to the technical field of power supply and communication of high-voltage transmission line on-load equipment, in particular to a wireless power supply and duplex communication coil with an embedded insulator. Comprising a high-voltage end embedded coil, a relay coil and a low-voltage end embedded coil which are embedded in an insulator, the problem of insulation between high-voltage equipment and low-voltage equipment is solved by coupling electric energy transmitting, relay and receiving coils, and stable electric power support is provided for on-line monitoring equipment on a high-voltage transmission line. In addition, the system adopts independent uplink and downlink data transmission paths, so that the stability of two-way communication is guaranteed. In uplink data transmission, monitoring data is sent to a low-voltage side from a high-voltage side, in downlink data transmission, a control instruction is sent to high-voltage side equipment, and the monitoring data and the downlink data do not interfere with each other. Through magnetic core arrangement and coil decoupling design, crosstalk of electric energy transmission on data transmission is effectively eliminated, the safety, the insulation performance and the environmental adaptability of the system are enhanced, and the system is suitable for online monitoring and management of the high-voltage transmission line.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply and communication of equipment on 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, by the end of 2020, a total of 35,868 kilometers of high-voltage transmission lines had been built nationwide. Towers and transmission lines are usually laid out in the wild, where the geographical and climatic environments are complex and changeable, and they face the impact of natural disasters such as earthquakes, landslides, floods, mudslides, ice and snow, typhoons, and thunderstorms. In order to understand the status information of transmission lines in real time and prevent the occurrence of power disasters, online monitoring equipment is widely used in transmission lines. Among them, there are online temperature monitoring devices for high-voltage lines installed on the high-voltage side of the transmission line, inspection robots and other monitoring equipment; 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 the monitoring equipment:

[0004] 1) In terms of power supply, due to the lack of outdoor power supply, new energy power generation equipment such as photovoltaics and batteries are usually used to provide power for online monitoring equipment. However, photovoltaic power supplies and batteries have problems such as randomness and high maintenance costs. At present, the use of current transformers to draw power from high-voltage transmission lines has become a solution for providing stable power supply for online monitoring equipment. For high-voltage side monitoring equipment, the current transformers also located on the high-voltage side can directly power it, but there is still a problem of how to power the low-voltage side monitoring equipment while ensuring the insulation level.

[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 issue that needs to be solved urgently. Summary of the invention

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: 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 comprises a cross magnetic core, an electric energy transmitting coil, an electric energy 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 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 electric energy transmitting coil, the electric energy relay coil and the electric energy receiving coil are coupled to each other and are used to wirelessly transmit electric energy 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, 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.

[0018] Furthermore, the power transmitting coil is a circular winding, and its radius is 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.

[0019] 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 bar 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.

[0020] 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 of the high-voltage end; the third terminal and the fourth terminal of the high-voltage end are connected to the input end of the second signal filter.

[0021] 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.

[0022] Furthermore, a cross magnetic core is placed on the plane where the electric energy receiving coil is located; an uplink data receiving coil is wound on the horizontal magnetic bar 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.

[0023] 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.

[0024] Furthermore, the power relay coil is a circular winding, and the 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.

[0025] Furthermore, a cross magnetic core is placed on the plane where the electric energy 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.

[0026] 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.

[0027] The beneficial effects of the present invention are:

[0028] 1. Achieve efficient and stable wireless power supply:

[0029] The energy on the high-voltage side is wirelessly transmitted to the low-voltage side through a high-frequency inverter and an electric energy transmission coil. Without the need for physical connection lines, the insulation challenge in traditional power supply methods is overcome, providing continuous and stable power for online monitoring equipment on the transmission line. At the same time, the high-frequency rectifier combined with the DC / DC converter provides a stable DC power supply, ensuring the reliable operation of the monitoring equipment and reducing the possibility of power outages.

[0030] 2. Two-way communication without contact and mutual interference:

[0031] The orthogonal uplink and downlink data transmission coil structure realizes two-way communication of uplink and downlink data, and the uplink and downlink signal transmission channels are independent and do not interfere with each other. Such a decoupling design ensures the stability of data transmission, so that monitoring data and control instructions can be transmitted reliably. The data transmission relay design increases the communication distance and enables the signal to remain stable in a complex transmission line environment.

[0032] 3. Effectively avoid electromagnetic interference:

[0033] The power transmission system and the data transmission system are decoupled from each other, and the cross core arrangement avoids the interference of power transmission on data transmission. This design ensures that the wireless power supply and duplex data communication systems will not affect each other when they coexist in the same structure, improving the overall performance and reliability of the system.

[0034] 4. Reduce maintenance and wiring costs:

[0035] Since the system realizes wireless power supply and two-way communication, there is no need for physical cable wiring between high-voltage and low-voltage equipment, which greatly reduces wiring costs. In addition, wireless transmission reduces the risk of damage to external power supplies and cables, thereby reducing subsequent maintenance costs. Compensation capacitor optimization is used inside the coil to further improve the efficiency of power transmission and reduce energy consumption.

[0036] 5. Enhanced system safety and insulation performance:

[0037] The power and data transmission coils are embedded in the insulator, which meets the high-voltage insulation requirements, avoids the risk of insulator breakdown, and ensures the safety of high-voltage transmission lines and the long-term stable operation of equipment. The system adopts a contactless transmission method, avoiding the risk of direct connection of equipment in a high-voltage environment, thereby improving the safety of monitoring equipment.

[0038] 6. Adapt to various complex environments:

[0039] The system design is particularly suitable for transmission lines in complex outdoor environments (such as high altitudes 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

[0040] Figure 1 , a schematic diagram of an insulator-embedded wireless power supply and duplex communication coil according to an embodiment of the present invention.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] Figure 5 , a schematic structural diagram of an insulator-embedded wireless power supply and duplex communication system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the content of 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.

[0046] Example 1

[0047] 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 in the insulator.

[0048] For any insulator with N sections, the insulator sections are named section 1 to section N in sequence from the high-voltage end to the low-voltage end of the transmission line.

[0049] 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 1st section; 1 insulator with an embedded coil at the low-voltage end, which is the 5th section; 3 insulators with embedded coils at the relay ends, which are the middle sections.

[0050] like Figure 2 As shown, the embedded coil at the high-voltage end of the insulator (section 1) includes: 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.

[0051] 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.

[0052] like Figure 4 As shown, the embedded coil at the low-voltage end of the insulator (Section 5) includes: a cross 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.

[0053] 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.

[0054] Furthermore, 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; the fifth terminal 12 of the high-voltage end and the sixth terminal 13 of the high-voltage end are connected to the output end of the first power amplifier.

[0055] Furthermore, a downlink data receiving coil 6 is wound on the vertical magnetic bar 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 third terminal 10 at the high-voltage end; the third terminal 10 and the fourth terminal 11 at the high-voltage end are connected to the input end of the second signal filter.

[0056] 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:

[0057]

[0058] 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 electric energy transmitting coil compensation capacitor 3, C tus is the capacitance value of the uplink data transmission coil compensation capacitor 5, C rdsd The capacitance value of the downlink data receiving coil compensation capacitor 7.

[0059] Furthermore, the power receiving coil 20 is a circular winding, and its radius is 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.

[0060] 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 fifth terminal 30 of the low-voltage end; the fifth terminal 30 of the low-voltage end and the sixth terminal 31 of the low-voltage end are connected to the output end of the first signal filter.

[0061] Furthermore, a downlink data transmitting coil 24 is wound on the vertical magnetic bar 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.

[0062] Furthermore, the values ​​of the inductance of the low-voltage embedded coil of the insulator and its corresponding compensation capacitance satisfy the following relationship:

[0063]

[0064] 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 rusis 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 transmitting coil compensation capacitor is 25.

[0065] Furthermore, the power relay coil 14 is a circular winding, and the 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 .

[0066] 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.

[0067] 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 .

[0068] Furthermore, the values ​​of the inductance of the embedded coil of the insulator relay and its corresponding compensation capacitance satisfy the following relationship:

[0069]

[0070] 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, C usi is the inductance value of the uplink data relay coil compensation capacitor 17, C dsi The inductance value of the downlink data relay coil compensation capacitor 19.

[0071] 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.

[0072] 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;

[0073] Further, the uplink data transmitting coil 4, the uplink data relay coil 16 and the uplink data receiving coil 22, that is, 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;

[0074] Furthermore, the downlink data receiving coil 6 , the downlink data relay coil 18 and the downlink data transmitting coil 24 , that is, 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.

[0075] 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.

[0076] 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 insulating material has excellent mechanical properties, light weight, high mechanical strength, strong adhesion, and convenient 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. Various different curing agents are selected. Epoxy resin can be cured almost in the temperature range of 0 to 180°C. If the multi-stage magnetic resonance module is embedded in the epoxy resin insulating 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.

[0077] Furthermore, the cross core 1 is also provided with a through hole for the insulator core rod of the high-voltage transmission line 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.

[0078] Example 2

[0079] 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 interaction for online monitoring equipment of transmission lines, including:

[0080] Wireless power supply module, used to realize wireless power transmission from the high-voltage side to the low-voltage side of the transmission line, and provide power for online monitoring equipment installed on the transmission line;

[0081] 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, so as to monitor the operation status of the transmission line;

[0082] 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;

[0083] The wireless power supply module, the uplink data transmission module and the downlink data transmission module are electrically connected in sequence.

[0084] Further, the wireless power supply module includes a high-voltage line load transformer, 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;

[0085] The high-voltage line load transformer is used to obtain electric energy from the high-voltage transmission line and convert it into low-frequency alternating current, and the system provides electric energy;

[0086] 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;

[0087] 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;

[0088] The power transmitting coil 2 is electrically connected to the output end 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;

[0089] The power relay coil 14 is used to enhance the high-frequency alternating current transmission;

[0090] The power receiving coil 20 is used to receive the high-frequency alternating current transmitted from the power relay coil;

[0091] 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, and is used to rectify the high-frequency alternating current into direct current;

[0092] 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.

[0093] The specific working process of the wireless power supply module is as follows:

[0094] The wireless power supply module uses a high-voltage line load transformer as a power source, which is rectified by an industrial frequency rectifier to power the 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 to convert the high-frequency AC into a DC voltage, which is then outputted through a subsequent DC / DC converter to provide power for the online monitoring equipment.

[0095] Further, 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;

[0096] The first signal modulator is electrically connected to the high-voltage detection device, the first power amplifier is electrically connected to the first signal modulator, and 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;

[0097] 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 in a wireless transmission form;

[0098] The uplink data relay coil 16 is used to forward the modulated and amplified monitoring data received from the uplink data transmitting coil 4;

[0099] 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.

[0100] Further, 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;

[0101] The second signal modulator is electrically connected to the low voltage detection device and the host computer, the second power amplifier is electrically connected to the second signal modulator, and 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;

[0102] 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;

[0103] The downlink data relay coil 18 is used to forward the modulated and amplified instruction data received from the downlink data transmitting coil 24;

[0104] 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.

[0105] Among them, the system-level structure of the uplink data transmission module is the same as that of the downlink data transmission module. The signal transmitter is composed of a signal modulation system and a power amplifier, followed by multiple data relay coils. The coil output is connected to a signal filter and a signal demodulator in turn. The function of the uplink data transmission system is to transmit the monitoring data of the high-voltage side online monitoring equipment to the low-voltage side host computer; the function of the downlink data transmission system is to transmit the configuration data of the low-voltage side host computer to the high-voltage side online monitoring system.

[0106] The present invention is explained from the viewpoints of purpose of use, efficiency, progress and novelty, and the practical progress it has is in line 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 the patent application of this application, should fall within the scope of protection of the patent application of this application.

[0107] 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 electric energy transmitting coil (2), the electric energy relay coil (14) and the electric energy receiving coil (20) are coupled to each other and are used to wirelessly transmit electric energy from the high-voltage end of the transmission line to the low-voltage end of the 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 the 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 the 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), the power receiving coil (20), the uplink data transmitting coil (4), the uplink data relay coil (16), the uplink data receiving coil (22), the downlink data receiving coil (6), the downlink data relay coil (18) and the downlink data transmitting coil (24) are mutually decoupled to eliminate crosstalk between the coils.

2. The insulator embedded wireless power supply and duplex communication coil according to claim 1, characterized in that: The electric energy transmitting coil (2) is a circular winding, and the radius is smaller than the radius of the insulator; the electric energy transmitting coil compensation capacitor (3) is connected in series with the second terminal (9) of the high-voltage end.

3. The insulator embedded wireless power supply and duplex communication coil according to claim 1, characterized in that: 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); and the uplink data transmitting coil compensation capacitor (5) is connected in series with the fifth terminal (12) of the high-voltage end.

4. The insulator embedded wireless power supply and duplex communication coil according to claim 1, characterized in that: A downlink data receiving coil (6) is wound on the vertical magnetic bar 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 third terminal (10) at the high-voltage end.

5. The insulator embedded wireless power supply and duplex communication coil according to claim 1, characterized in that: The power receiving coil (20) is a circular winding, and the radius is smaller than the insulator radius; the power receiving coil compensation capacitor (21) is connected in series with the low-voltage end second terminal (27).

6. The insulator embedded wireless power supply and duplex communication coil according to claim 1, characterized in that: 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); and the uplink data receiving coil compensation capacitor (23) is connected in series with the fifth terminal (30) at the low voltage end.

7. The insulator embedded wireless power supply and duplex communication coil according to claim 1, characterized in that: A downlink data transmitting coil (24) is wound on the vertical magnetic bar 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 third terminal (28) at the low voltage end.

8. The insulator embedded wireless power supply and duplex communication coil according to claim 1, characterized in that: The electric energy relay coil (14) is a circular winding, and its radius is smaller than the insulator radius; the electric energy relay coil compensation capacitor (15) is connected in series with the circular winding of the electric energy relay coil (14).

9. The insulator embedded wireless power supply and duplex communication coil according to claim 1, characterized in that: A cross magnetic core (1) is placed on the plane where the electric energy relay coil (14) is located; an uplink data relay coil (16) is wound on a horizontal magnetic bar at the relay end of the cross magnetic 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).

10. The insulator embedded wireless power supply and duplex communication coil according to claim 1, characterized in that: A downlink data relay coil (18) is wound on a vertical magnetic bar 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).

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