CN113394889A - Wireless energy supply system for high-voltage line monitoring and setting - Google Patents
Wireless energy supply system for high-voltage line monitoring and setting Download PDFInfo
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- CN113394889A CN113394889A CN202110556034.9A CN202110556034A CN113394889A CN 113394889 A CN113394889 A CN 113394889A CN 202110556034 A CN202110556034 A CN 202110556034A CN 113394889 A CN113394889 A CN 113394889A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 38
- 230000006698 induction Effects 0.000 claims abstract description 29
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 230000005672 electromagnetic field Effects 0.000 claims description 18
- 238000004146 energy storage Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000005674 electromagnetic induction Effects 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 14
- 238000001514 detection method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
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Abstract
The invention discloses a wireless energy supply system for high-voltage line monitoring setting, which comprises a high-voltage line tower, wherein high-voltage buses are arranged on two sides of the top of the high-voltage line tower, a supporting plate is fixedly connected to the middle position of the top of the high-voltage line tower, a high-voltage line monitoring terminal is fixedly connected to the top of the supporting plate, a supporting seat is fixedly connected to one side of the bottom of the high-voltage line tower, a wireless function box is fixedly connected to the top of the supporting seat, and a high-voltage induction electricity taking device, a high-voltage electric energy transmitting device and a high-voltage electric energy receiving device are fixedly connected to the inside of the wireless function box. According to the invention, the storage battery module in the high-frequency electric energy receiving device stores electric energy, provides electric energy for the high-voltage line monitoring terminal, and realizes a system for high-efficiency energy transfer between the high-frequency electric energy transmitting device and the high-frequency electric energy receiving device, so that the output current is stable, and a certain protection function is provided.
Description
Technical Field
The invention relates to the technical field of high-voltage line monitoring, in particular to a wireless energy supply system for high-voltage line monitoring.
Background
The high-voltage transmission line monitoring equipment is an important component of the construction and transmission link of the smart grid. At present, monitoring equipment mainly adopts power supply modes such as solar energy and wind energy, the power supply caused by environmental factors such as insufficient sunshine in rainy and snowy seasons is unstable, the power supply problem of high-voltage towers, distribution equipment and cable monitoring equipment is effectively solved by adopting a wireless power transmission mode, the stability and the safety of the monitoring equipment are greatly improved, the intelligent power grid is of great significance to the construction of the intelligent power grid, and the characteristics of maintenance free, non-contact electric sparks, stability and high efficiency can bring huge revolution to power transmission and power utilization technologies. The wireless power supply system is stable and safe for scientifically and normatively monitoring the state of the high-voltage line of the smart grid, the technical standard of the high-voltage line wireless power supply system is unified, the device is effective, stable, reliable, advanced and applicable, and the standard of the high-voltage line wireless power supply system is specially set.
At present, the system generally comprises a high-voltage induction electricity taking device, a high-frequency electric energy transmitting device, a high-frequency electric energy receiving device and an online monitoring terminal. The high-voltage induction electricity taking device comprises an induction coil used for taking electricity on a high-voltage line and a control module used for outputting electric energy; the high-frequency electric energy transmitting device comprises 3 parts of a transmitting end control module, a transmitting end energy storage module and a transmitting end coil; the high-frequency electric energy receiving device is composed of a receiving end coil, a receiving end energy storage module, a receiving end rectifying and detecting module and a storage battery module, and therefore a wireless energy supply system for high-voltage line monitoring is urgently needed to be designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a wireless power supply system for a high-voltage line monitoring device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a wireless energy supply system for high tension line monitoring sets up, includes the high-tension line tower, and the top both sides of high-tension line tower are provided with high-voltage bus, the top intermediate position fixedly connected with backup pad of high-tension line tower, the top fixedly connected with high-tension line monitor terminal of backup pad, bottom one side fixedly connected with supporting seat of high-tension line tower, and the wireless function case of top fixedly connected with of supporting seat, the inside fixedly connected with high pressure induction of wireless function case gets electric installation, high-voltage electric energy emitter and high-voltage electric energy receiving arrangement.
Preferably: the high-voltage induction power taking device is connected with the high-voltage induction power taking device through a step-down transformer, the high-voltage induction power taking device comprises an induction coil used for taking power on a high-voltage line and a control module used for outputting electric energy, the high-voltage induction power taking device is connected with the high-voltage electric energy transmitting device through the output electric energy control module, and the high-voltage power taking device is a power supply device which utilizes the electromagnetic induction principle, obtains electric energy from the high-voltage bus and provides stable voltage output.
Preferably: the high-voltage electric energy transmitting device is composed of a transmitting end control module, a transmitting end energy storage module and a transmitting end coil, an alternating current electromagnetic field used for transmitting energy is arranged between the high-voltage electric energy transmitting device and the high-voltage electric energy receiving device, and the high-voltage electric energy transmitting device is a device which is driven by the high-voltage induction electricity taking device and then transmits the energy in the form of an alternating electromagnetic field.
Preferably: the high-voltage electric energy receiving device comprises a receiving end coil for forming an alternating-current electromagnetic field, a receiving end energy storage module and a storage battery module for receiving electric energy, and a receiving end rectifying and detecting module which enables the high-frequency electric energy transmitting device, the high-frequency electric energy receiving device and the whole system to have the same resonant frequency, and the high-voltage electric energy receiving device is a device for receiving electric energy transmitted by the high-frequency electric energy transmitting device through coupling of a high-frequency alternating electromagnetic field.
Preferably: the high-voltage line monitoring terminal comprises high-voltage line monitoring equipment, and the high-voltage line monitoring equipment is electrically connected with the high-voltage electric energy receiving device.
Preferably: one side of the wireless function box is provided with an overhaul door body, air vents distributed equidistantly are formed in one side of the overhaul door body, and the inner wall of each air vent is fixedly connected with a ventilation net.
The invention has the beneficial effects that:
1. according to the invention, electric energy is obtained from a high-voltage bus by the electromagnetic induction principle of high-voltage induction electricity taking equipment, the voltage is controlled by using a step-down transformer, a power supply device for outputting stable voltage is provided for the whole wireless energy supply system, the high-voltage electric energy transmitting device is driven to transmit the energy in the form of an alternating electromagnetic field, and then the high-voltage electric energy receiving device receives the electric energy transmitted by the high-voltage electric energy transmitting device through coupling of a high-frequency alternating electromagnetic field, so that a storage battery module in the high-frequency electric energy receiving device stores the electric energy and provides the electric energy for a high-voltage line monitoring terminal.
2. In the invention, in the electric energy transmission process through the high-voltage electric energy transmitting device and the high-voltage electric energy receiving device, after the parameters of the high-frequency electric energy transmitting device and the high-frequency electric energy receiving device are set by utilizing the principle of resonance by utilizing the receiving end rectifying and detecting module, the high-frequency electric energy transmitting device, the high-frequency electric energy receiving device and the whole system have the same resonance frequency, and the system can reach an 'electric resonance' state under the driving of a power supply with the resonance frequency, thereby realizing the system for high-efficiency energy transmission between the high-frequency electric energy transmitting device and the high-frequency electric energy receiving device.
3. According to the invention, through the set parameters of the high-frequency electric energy transmitting device and the high-frequency electric energy receiving device, the high-frequency electric energy transmitting device can transmit electric energy in a wireless mode, the high-frequency inverter circuit has a self-protection function, when a bridge arm is driven to be conducted, a control signal can be turned off in time, the high-frequency inverter circuit also has a current and transmitting power detection function, the optimal working state of equipment can be kept in an automatic adjustment mode, the high-frequency inverter circuit also has the function of self-adaptive frequency adjustment of software, the device can work in the optimal state, and a novel power consumption component is selected, so that the high-frequency inverter circuit has good heat dissipation and low power consumption, and can normally and stably work under a specified voltage and current value; the high-frequency electric energy receiving device is stable in output current, has a certain protection function, is required to be turned off in time for short circuit, has a current and voltage detection function, and can transmit data to the wireless communication device.
Drawings
Fig. 1 is a schematic overall system structure diagram of a wireless power supply system for a high-voltage line monitoring arrangement according to the present invention;
fig. 2 is a schematic structural diagram of a classification system of a wireless power supply system for a high-voltage line monitoring arrangement according to the present invention;
fig. 3 is a schematic circuit diagram of a wireless power supply system for a high-voltage line monitoring arrangement according to the present invention;
fig. 4 is a schematic overall structure diagram of a wireless power supply system for a high-voltage line monitoring arrangement according to the present invention;
fig. 5 is a schematic diagram of a wireless power supply structure of a wireless power supply system for a high-voltage line monitoring device according to the present invention.
In the figure: 1 high-voltage line tower, 2 wireless energy supply boxes, 201 high-voltage induction electricity-taking device, 202 high-voltage electric energy transmitting device, 203 high-voltage electric energy receiving device, 3 inspection door bodies, 4 air vents, 5 high-voltage buses and 6 high-voltage line monitoring terminals.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements throughout, or to elements having the same or similar power supplies. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1-5, a wireless energy supply system for high voltage transmission lines monitoring setting, including high voltage line tower 1, and the top both sides of high voltage line tower 1 are provided with high voltage generating line 5, and there is the backup pad top intermediate position of high voltage line tower 1 through bolted connection, and there is high voltage transmission lines monitor terminal the top of backup pad through bolted connection, there is the supporting seat bottom one side of high voltage line tower 1 through bolted connection, and there is wireless function case 2 at the top of supporting seat through bolted connection, and there are high-pressure induction electricity taking device 201, high-voltage electric energy emitter 202 and high-voltage electric energy receiving arrangement 203 through bolted connection in the inside of wireless function case 2.
Further, one side of the high-voltage bus 5 is connected with the high-voltage induction electricity-taking device 201 through a step-down transformer, the high-voltage induction electricity-taking device 201 comprises an induction coil for taking electricity on a high-voltage line and a control module for outputting electric energy, the high-voltage induction electricity-taking device 201 is connected with the high-voltage electric energy emitting device 202 through the output electric energy control module, the high-voltage electricity-taking device 201 is a power supply device which obtains electric energy from the high-voltage bus 5 and provides stable voltage output by utilizing the electromagnetic induction principle, the basic technical requirements of the high-voltage induction electricity-taking device 201 are in accordance with the technical specifications of the Q/TK 122 and 2012 high-voltage induction electricity-taking device, the electric energy is obtained from the high-voltage bus 5 by the electromagnetic induction principle of the high-voltage induction electricity-taking device 201, the voltage is controlled by the step-down transformer, and the power supply device provides stable voltage output for the whole wireless energy supply system, the high-voltage electric energy transmitting device 202 is driven to transmit energy in the form of an alternating electromagnetic field, and then the high-voltage electric energy receiving device 203 receives the electric energy transmitted by the high-voltage electric energy transmitting device 202 through the coupling of the high-frequency alternating electromagnetic field, so that the storage battery module in the high-frequency electric energy receiving device 202 stores the electric energy and provides the electric energy for the high-voltage line monitoring terminal.
Further, the high voltage electric energy transmitting device 202 is composed of a transmitting end control module, a transmitting end energy storage module and a transmitting end coil, an alternating current electromagnetic field for transmitting energy is arranged between the high voltage electric energy transmitting device 202 and the high voltage electric energy receiving device 203, the high voltage electric energy transmitting device 202 is a device which is driven by the high voltage induction electricity-taking device 201 and then transmits energy in the form of an alternating electromagnetic field, and the high voltage electric energy transmitting device 202: the working temperature is-25 ℃ to +70 ℃ (industrial grade) or-40 ℃ to +85 ℃ (industrial expansion grade), the input voltage is 24V direct current, the output frequency is 0.5MHz to 10MHz, the output power is more than or equal to 100W, and the frequency adjustment mode is software self-adaptive adjustment.
Further, the high voltage power receiving device 203 includes a receiving end coil for forming an alternating electromagnetic field, a receiving end energy storage module and a storage battery module for receiving power, and a receiving end rectifying and detecting module for making the high frequency power transmitting device 202 and the high frequency power receiving device 203 and the whole system have the same resonance frequency, the high voltage power receiving device 203 refers to a device for receiving power transmitted by the high frequency power transmitting device 202 through coupling of the high frequency alternating electromagnetic field, the high voltage power receiving device 203: the working temperature is-25 ℃ to +70 ℃ (industrial grade) or-40 ℃ to +85 ℃ (industrial expansion grade), the output voltage is 24V DC or 48V AC, the precision of the output voltage is less than or equal to +/-8%, the input frequency is 0.5MHz to 10MHz, the output power is more than or equal to 20W, the distance between the high-frequency electric energy receiving device 203 and the high-frequency electric energy transmitting device 202 is more than or equal to 3m, during the transmission of power through the high voltage power transmission device 202 and the high voltage power reception device 203, after setting parameters of the high-frequency power transmitting device 202 and the high-frequency power receiving device 203 by using the principle of resonance of the receiving end rectifying and detecting module, so that the high-frequency power transmission device 202 and the high-frequency power reception device 203 and the entire system have the same resonance frequency, and the system can reach an 'electric resonance' state under the driving of the power supply with the resonance frequency, and the system can realize the efficient energy transfer between the high-frequency electric energy transmitting device 202 and the high-frequency electric energy receiving device 203.
Furthermore, the high-voltage line monitoring terminal comprises a high-voltage line monitoring device 6, the high-voltage line monitoring device 6 is electrically connected with the high-voltage electric energy receiving device 203, the working temperature of the high-voltage line monitoring terminal is-25 ℃ to +70 ℃ (industrial grade) or-40 ℃ to +85 ℃ (industrial extension grade), the resolution ratio of the collected real-time monitoring image is not lower than 320 to 240, and the detection voltage error is not more than +/-2%. The detection current error is less than or equal to +/-3 percent, the detection power error is less than or equal to +/-6 percent, the detection frequency error is less than or equal to +/-2 percent, the frequency measurement range is 0.5MHz-10MHz, the serial port baud rate is not less than 9600, and the relative humidity is 5-95 percent, the high-frequency electric energy transmitting device 202 has a self-protection function through the arranged parameters of the high-frequency electric energy receiving device 203, when the bridge arm is driven to be conducted, a control signal can be turned off in time, the detection function of current and transmission power is also provided, the optimal working state of equipment can be kept through an automatic adjustment mode, the self-adaptive frequency adjustment of software is also provided, the device can work in the optimal state, and a novel power consumption component is selected, so that the heat dissipation performance is good, the power consumption is low, and the device can normally and stably work under the specified voltage current value; the high-frequency electric energy receiving device 203 is stable in output current, has a certain protection function, is required to be turned off in time for short circuit, has a current and voltage detection function, and can transmit data to the wireless communication device.
Furthermore, an overhaul door body 3 is arranged on one side of the wireless function box 2, air vents 4 distributed at equal intervals are formed in one side of the overhaul door body 3, and the inner walls of the air vents 4 are connected with a ventilation net through bolts.
The working principle is as follows: the method comprises the steps of obtaining electric energy from a high-voltage bus 5 through the electromagnetic induction principle of a high-voltage induction electricity-taking device 201, controlling the voltage by using a step-down transformer, providing a power supply device for outputting stable voltage for the whole wireless energy supply system, driving a high-voltage electric energy transmitting device 202 to transmit the energy in the form of an alternating electromagnetic field, receiving the electric energy transmitted by the high-voltage electric energy transmitting device 202 through coupling of a high-frequency alternating electromagnetic field through a high-voltage electric energy receiving device 203, enabling a storage battery module in the high-frequency electric energy receiving device 202 to store the electric energy, providing the electric energy for a high-voltage line monitoring terminal, and utilizing the principle that a receiving end rectifies and a detecting module utilize resonance in the electric energy transmission process of the high-voltage electric energy transmitting device 202 and the high-voltage electric energy receiving device 203, and enabling the high-frequency electric energy transmitting device 202, the high-frequency electric energy receiving device 203 and the whole system to have the same parameters after the high-frequency electric energy receiving device 203 and the high-frequency electric energy transmitting device 202 have the same parameters The resonance frequency, and the system can reach an 'electric resonance' state under the power supply driving of the resonance frequency, and the system realizes the high-efficiency energy transfer between the high-frequency electric energy transmitting device 202 and the high-frequency electric energy receiving device 203, by setting the respective parameters of the high-frequency power transmission device 202 and the high-frequency power reception device 203, so that the high-frequency electric energy transmitting device 202 can transmit the electric energy in a wireless manner, the high-frequency inverter circuit has a self-protection function, when the bridge arm is driven to be conducted, the control signal can be turned off in time, and the device also has the current and emission power detection function, the device can keep the best working state of the equipment by an automatic adjustment mode, and also has the function of self-adaptive frequency adjustment of software to ensure that the device works in the best state, the novel power consumption assembly is selected, so that the heat dissipation is good, the power consumption is low, and the normal and stable work can be realized under the specified voltage and current values; the high-frequency electric energy receiving device 203 is stable in output current, has a certain protection function, is required to be turned off in time for short circuit, has a current and voltage detection function, and can transmit data to the wireless communication device.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a wireless energy supply system for high tension line monitoring sets up, includes high-voltage line tower (1), and the top both sides of high-voltage line tower (1) are provided with high-voltage bus (5), the top intermediate position fixedly connected with backup pad of high-voltage line tower (1), the top fixedly connected with high-voltage line monitoring terminal of backup pad, a serial communication port, bottom one side fixedly connected with supporting seat of high-voltage line tower (1), and the wireless function box of top fixedly connected with (2) of supporting seat, the inside fixedly connected with high-pressure induction of wireless function box (2) is got electric installation (201), high-voltage electric energy emitter (202) and high-voltage electric energy receiving arrangement (203).
2. The wireless energy supply system for the high-voltage line monitoring setting according to claim 1, wherein one side of the high-voltage bus (5) is connected with the high-voltage induction electricity taking device (201) through a step-down transformer, the high-voltage induction electricity taking device (201) comprises an induction coil for taking electricity on the high-voltage line and a control module for outputting electric energy, the high-voltage induction electricity taking device (201) is connected with the high-voltage electric energy emitting device (202) through an output electric energy control module, and the high-voltage electricity taking device (201) is a power supply device which utilizes an electromagnetic induction principle, obtains electric energy from the high-voltage bus (5) and provides stable voltage output.
3. The wireless energy supply system for the high-voltage line monitoring setting according to claim 2, wherein the high-voltage electric energy transmitting device (202) is composed of a transmitting end control module, a transmitting end energy storage module and a transmitting end coil, an alternating current electromagnetic field for transmitting energy is arranged between the high-voltage electric energy transmitting device (202) and the high-voltage electric energy receiving device (203), and the high-voltage electric energy transmitting device (202) is a device which is driven by the high-voltage induction electricity taking device (201) and transmits energy in the form of an alternating electromagnetic field.
4. The wireless power supply system for the high-voltage line monitoring setting according to claim 3, wherein the high-voltage power receiving device (203) comprises a receiving end coil for forming an alternating electromagnetic field, a receiving end energy storage module and a storage battery module for receiving power, a receiving end rectifying and detecting module for enabling the high-frequency power transmitting device (202) and the high-frequency power receiving device (203) and the whole system to have the same resonance frequency, and the high-voltage power receiving device (203) is a device for receiving the high-frequency power transmitting device (202) and transmitting the power through the coupling of the high-frequency alternating electromagnetic field.
5. A wireless power supply system for high voltage line monitoring arrangement according to claim 4, characterized in that the high voltage line monitoring terminal comprises a high voltage line monitoring device (6) and that the high voltage line monitoring device (6) is electrically connected to the high voltage power receiving device (203).
6. The wireless energy supply system for the high-voltage line monitoring setting according to any one of claims 1 to 5, characterized in that one side of the wireless function box (2) is provided with an inspection door body (3), one side of the inspection door body (3) is provided with air vents (4) distributed at equal intervals, and the inner walls of the air vents (4) are fixedly connected with an air permeable net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110556034.9A CN113394889A (en) | 2021-05-21 | 2021-05-21 | Wireless energy supply system for high-voltage line monitoring and setting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110556034.9A CN113394889A (en) | 2021-05-21 | 2021-05-21 | Wireless energy supply system for high-voltage line monitoring and setting |
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| CN113394889A true CN113394889A (en) | 2021-09-14 |
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| CN202110556034.9A Pending CN113394889A (en) | 2021-05-21 | 2021-05-21 | Wireless energy supply system for high-voltage line monitoring and setting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115425769A (en) * | 2022-09-05 | 2022-12-02 | 广东电网有限责任公司 | Resonance energy taking method, system and device for insulated overhead ground wire |
-
2021
- 2021-05-21 CN CN202110556034.9A patent/CN113394889A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115425769A (en) * | 2022-09-05 | 2022-12-02 | 广东电网有限责任公司 | Resonance energy taking method, system and device for insulated overhead ground wire |
| CN115425769B (en) * | 2022-09-05 | 2024-06-07 | 广东电网有限责任公司 | Resonance energy-taking method, system and device for insulating overhead ground wire |
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