CN112186818B - Device for carrying out high-potential on-line energy obtaining on high-voltage overhead line - Google Patents
Device for carrying out high-potential on-line energy obtaining on high-voltage overhead line Download PDFInfo
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- CN112186818B CN112186818B CN202011372818.8A CN202011372818A CN112186818B CN 112186818 B CN112186818 B CN 112186818B CN 202011372818 A CN202011372818 A CN 202011372818A CN 112186818 B CN112186818 B CN 112186818B
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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
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Abstract
The invention provides a device for high-potential on-line energy taking on a high-voltage overhead line, which comprises: a floating potential conductor; a conductor connecting member connected to the floating potential conductor; a discharge electrode connected to the conductor connecting member through an insulating member; and the high-potential conductor is connected to the high-voltage overhead line, and forms a discharge channel between the high-potential conductor and the discharge electrode by using a phase voltage from the high-voltage overhead line so as to supply power to an external load connected with the discharge electrode and the conductor connecting piece based on the power generated by the discharge channel. The discharge gap is formed between the discharge electrode and the high-potential conductor, and the potential difference between the discharge electrode and the high-potential conductor causes the air gap breakdown of the discharge gap, so that the charges induced on the discharge electrode are transferred to generate broadband current, and the broadband current is transmitted to an external load through the conductor connecting piece and the discharge electrode so as to supply power to the external load.
Description
Technical Field
The invention relates to the technical field of power taking of overhead lines, in particular to a device for carrying out high-potential on-line power taking on a high-voltage overhead line.
Background
The high-voltage overhead line can obtain energy on line in two modes, one mode is to utilize natural energy, and the other mode is to extract electric energy from a subordinate overhead line. Natural energy including wind energy, solar energy and combinations thereof is utilized. Extracting electric energy from the alternating current overhead line comprises methods of extracting energy by using a voltage division principle, extracting energy from a lead by using a CT (current transformer), extracting energy from an overhead ground wire and the like. For a direct current overhead line, there is an energy extraction method based on insulator leakage current.
The equipment of work at high potential has sensor, on-line monitoring equipment, patrols and examines robot, unmanned aerial vehicle and live working robot etc. and the wire CT of alternating current circuit gets can and overhead earth wire gets can be bulky, and the quality is heavy, and receives the circuit operation mode to influence, and prior art does not support the direct current circuit and gets can on line, gets can the problem and has restricted the circuit greatly and patrolled and examined and apply with robot and on-line monitoring equipment's application, and the operating efficiency of robot can't improve.
Disclosure of Invention
In view of the above, the invention provides a device for performing high-potential online energy taking on a high-voltage overhead line, and aims to solve the problems that the existing energy taking mode is limited in use and low in working efficiency due to the weight of energy taking equipment and the influence of line operation.
The invention provides a device for carrying out high-potential on-line energy acquisition on a high-voltage overhead line, which suspends a potential conductor; a conductor connecting member connected to the floating potential conductor; a discharge electrode connected to the conductor connecting member through an insulating member; a high-potential conductor having a discharge gap with the discharge electrode, the high-potential conductor being connected to a high-voltage overhead line, and forming a discharge channel between the high-potential conductor and the discharge electrode by using a phase voltage from the high-voltage overhead line, so as to supply power to an external load connected to the discharge electrode and the conductor connection member based on power generated by the discharge channel; wherein the discharge gap is determined based on a phase voltage of the high voltage overhead line.
Further, according to the above device for high-voltage online energy extraction on a high-voltage overhead line, the air gap length d of the discharge gap is calculated by using the following formula:
wherein U is a phase voltage of the high-voltage overhead line; k is a gap calculation coefficient, and k is more than or equal to 1 and less than or equal to 25.
Further, according to the device for high-potential online energy obtaining on the high-voltage overhead line, the gap calculation coefficient is determined based on the ground capacitance of the floating potential conductor and the required power of the external load.
Further, in the above apparatus for high-voltage on-line energy extraction in a high-voltage overhead line, the gap calculation coefficient k is calculated by using the following formula:
wherein, C1Is the capacitance to ground of the floating potential conductor; and P is the required power of the external load.
Further, according to the device for carrying out high-potential online energy obtaining on the high-voltage overhead line, an insulation height adjusting piece is arranged between the suspension potential conductor and the high-potential conductor, and the insulation height adjusting piece is used for adjusting the distance between the suspension potential conductor and the high-potential conductor so as to adjust the air gap length of the discharge gap.
Further, according to the device for performing high potential online energy obtaining on the high voltage overhead line, a sensor is arranged on the high potential conductor or the discharge electrode and used for detecting the current discharge gap between the high potential conductor and the discharge electrode; the sensor is connected with a controller and sends the current discharge gap to the controller; the controller is connected with the insulation height adjusting member to determine whether the discharge gap needs to be adjusted based on the current discharge gap received from the sensor, and when it is determined that the discharge gap needs to be adjusted, the controller controls the insulation height adjusting member to adjust the discharge gap between the high-potential conductor and the discharge electrode.
Further, the above mentioned device for high potential online energy obtaining in high voltage overhead line, the controller includes: the input unit is used for inputting the power required by the external load to the computing unit; the calculation unit is electrically connected with the input unit and used for receiving the power required by the external load input by the input unit and determining a discharge gap required between the high-potential conductor and the discharge electrode by combining the phase voltage of the high-voltage overhead line; and the control unit is respectively electrically connected with the calculation unit and the sensor and used for receiving and comparing the required discharge gap determined by the calculation unit and the current discharge gap detected by the sensor, and controlling the insulation height adjusting piece to realize the adjustment of the suspension potential conductor based on the comparison result of the required discharge gap and the current discharge gap so as to adjust the discharge gap between the high potential conductor and the discharge electrode.
Further, the above-mentioned device for carrying out high potential online energy extraction on a high voltage overhead line, a current processing module is connected between the high potential conductor and the discharge electrode, and the current processing module includes: the device comprises a transformer, a radio frequency rectifying unit, a voltage conversion and fine rectifying unit, a filtering unit, an output unit and a storage battery which are sequentially cascaded; the transformer is used for energy coupling; the radio frequency rectifying unit is used for rectifying the discharge current by adopting the series-parallel combination of Schottky diodes, and filtering the rectified discharge current by an LC circuit to obtain pulsating direct current; the voltage conversion and fine rectification unit is used for performing fine rectification and voltage adjustment on the pulsating direct current by adopting a switching power supply to obtain high-frequency pulsating direct current; the filtering unit is used for filtering the high-frequency pulsating direct current to provide direct current output with stable current and small ripple factor; the output unit is used for providing direct current output with stable current and small ripple factor to the storage battery so as to charge the storage battery, and providing electric energy to an external load and/or a control module; the control module is connected with the transformer, the radio frequency rectifying unit, the voltage conversion and fine rectifying unit, the filtering unit and the output unit and is used for controlling the operation states of the transformer, the radio frequency rectifying unit, the voltage conversion and fine rectifying unit, the filtering unit and the output unit.
Further, according to the device for performing high-potential online energy obtaining on the high-voltage overhead line, the primary side input lead terminal of the transformer is respectively connected with the conductor connecting piece and the discharge electrode.
Further, according to the device for carrying out high-potential online energy taking on the high-voltage overhead line, the conductor connecting piece and the discharge electrode are provided with energy taking lead terminals penetrating through the insulating piece.
The device for carrying out high potential on-line energy taking on a high voltage overhead line, provided by the invention, has the advantages that the discharge gap is formed between the discharge electrode and the high potential conductor, the potential difference between the discharge electrode and the high potential conductor causes the air gap breakdown of the discharge gap, so that the charges induced on the discharge electrode are transferred to generate broadband current, the broadband current is transmitted to an external load through the conductor connecting piece and the discharge electrode to supply power to the external load, and further, the device can provide electric energy for high potential working equipment such as a sensor, on-line monitoring equipment, a robot and an unmanned aerial vehicle which work on high potential, solve the energy taking problems of the sensor, the on-line monitoring equipment, the inspection robot, the unmanned aerial vehicle and a live working robot, provide a power supply which is stable, continuous and convenient to access, and the power of the sensor, the on-line monitoring equipment, the inspection robot, the unmanned aerial vehicle and the live, therefore, the high-potential working equipment can be widely applied; the storage batteries of the inspection robot, the unmanned aerial vehicle and the working robot can be charged, so that the cruising ability of the inspection robot, the unmanned aerial vehicle and the working robot is improved, the inspection robot, the unmanned aerial vehicle and the working robot can work online for a long time, the working efficiency is improved, and the problem of power supply of high-potential working equipment is solved; in addition, the device not only can get the energy power than the induction electricity mode and get the electricity big, can satisfy the quick charge demand of equipment.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a high-potential online energy-taking device for a high-voltage overhead line according to an embodiment of the present invention;
fig. 2 is an electrical schematic diagram of a device for high-potential online energy acquisition in a high-voltage overhead line according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of an apparatus for high potential on-line energization of a high voltage overhead line according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the whole device for high potential online energy extraction on a high voltage overhead line according to the embodiment of the invention;
fig. 5 is a block diagram of a power processing module according to an embodiment of the present invention;
FIG. 6 is a block diagram of the structure among the insulation height adjusting member, the sensor and the controller according to the embodiment of the present invention;
fig. 7 is a block diagram of a controller according to an embodiment of the present invention;
reference numerals:
a floating potential conductor 1; a conductor connecting member 2; a discharge electrode 3; a high potential conductor 4; an electric energy processing module 5; an insulating member 6; a bottom plate 7; an insulation height adjuster 100; a sensor 200; a controller 300; an input unit 310, a calculation unit 320, and a control unit 330; a transformer 51; a radio frequency rectifying unit 52; a voltage conversion and fine rectification unit 53; a filtering unit 54; an output unit 55; and a battery 56.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 4, preferred structures of the high-voltage overhead line high-potential online energy-obtaining device provided by the embodiment of the invention are shown. As shown, the apparatus comprises: the device comprises a suspension potential conductor 1, a conductor connecting piece 2, a discharge electrode 3, a high potential conductor 4 and an electric energy processing module 5; wherein the content of the first and second substances,
the conductor connecting piece 2 is arranged and connected on the suspension potential conductor 1; a discharge electrode 3 connected to the conductor connecting member 2 through an insulator 6; a high-potential conductor 4 having a discharge gap with the discharge electrode 3, the high-potential conductor 4 being connected to a high-voltage overhead line, and forming a discharge channel between the high-potential conductor 4 and the discharge electrode 3 by using a phase voltage from the high-voltage overhead line, so as to supply power to an external load connected to the discharge electrode 3 and the conductor connection member 2 based on power generated by the discharge channel; wherein the discharge gap is determined based on a phase voltage of the high voltage overhead line. Specifically, the high potential conductor 4 may be fixed on a high voltage overhead line or may be fixed on a bottom plate 7, the bottom plate 7 is connected to a high potential device such as a housing of a robot connected to the high voltage overhead line, that is, the housing of the robot is equivalent to the same potential of the conductor and the high voltage overhead line, the suspended potential conductor 1 may be supported by an insulating member 6 to be suspended in the air, and the suspended potential conductor 1 is connected by a conductor connecting member 2, the conductor connecting member 2 and the discharge electrode 3 may both be provided with energy-taking lead terminals penetrating the insulating member 6, and the two energy-taking lead terminals may be respectively connected to two ends of the electric energy processing module 5; in order to realize the fixation and suspension of the discharge electrode 3, the discharge electrode 3 is connected with the conductor connecting piece 2 through the insulating piece 6 so as to ensure the mechanical support fixation of the discharge electrode 3 and the conductor connecting piece 2, so that a discharge gap is formed between the discharge electrode 3 and the high-potential conductor 4, and meanwhile, the current conduction between the discharge electrode 3 and the high-potential conductor is avoided; a discharge gap is formed between the discharge electrode 3 and the high-potential conductor 4, the gap is broken down due to the potential difference between the discharge electrode and the high-potential conductor, the charges are transferred to generate broadband current, and the broadband current is processed by the electric energy processing module 5 to extract electric energy and change the electric energy into a required power supply so as to supply power to an external load and the like. The insulating member 6 may be an insulating tube with a hollow interior, and two ends of the insulating member are respectively connected to the conductor connecting member 2 and the discharge electrode 3. The robot is connected on the high-voltage overhead line all the time when working, namely, the robot moves along the high-voltage overhead line all the time when working, under the working condition, the robot is equivalent to a conductor, the high-voltage overhead line and the robot belong to high potential, the device can be arranged on the robot, can move synchronously along with the robot, and can form a discharge channel between the high-potential conductor and the discharge electrode by using phase voltage from the high-voltage overhead line when moving, and the robot is powered on the basis of electric power generated by the discharge channel.
Referring to fig. 5, a block diagram of a power processing module according to an embodiment of the present invention is shown. As shown, the power processing module 5 includes: the transformer 51, the radio frequency rectifying unit 52, the voltage conversion and fine rectifying unit 53, the filtering unit 54, the output unit 55 and the storage battery 56 which are sequentially cascaded, namely, the transformer 51, the radio frequency rectifying unit 52, the voltage conversion and fine rectifying unit 53, the filtering unit 54, the output unit 55 and the storage battery 56 are sequentially cascaded; the discharge current generated between the discharge electrode 3 and the high potential conductor 4 is a broadband pulse signal, the transformer 51 may be a transformer made of nickel-zinc magnetic rings to perform energy coupling by using the principle of electromagnetic induction, and the insulation between the primary and secondary of the transformer 51 and the insulation between the output lead and the high potential require: the withstand voltage of the insulating material is not lower than the discharge voltage of the air gap, and the transmission bandwidth of the transformer comprises 5-200 MHz; the radio frequency rectifying unit 52 is configured to rectify the discharge current by using a series-parallel combination of schottky diodes, and obtain a pulsating direct current through filtering by an LC circuit; the voltage conversion and fine rectification unit 53 is used for performing fine rectification and voltage adjustment on the pulse direct current by using a switching power supply to obtain high-frequency pulsating direct current; the filtering unit 54 is configured to perform the dither dc filtering to provide a dc output with stable current and small ripple factor; the output unit 55 is configured to provide a dc output with a stable current and a small ripple factor to the battery 56 to charge the battery 56, and is configured to provide power to an external load and/or a control module, and the control module may be electrically connected to the transformer 51, the rf rectifying unit 52, the voltage transforming and fine rectifying unit 53, the filtering unit 54, and the output unit 55 to control the operation states of the transformer 51, the rf rectifying unit 52, the voltage transforming and fine rectifying unit 53, and the filtering unit 54. In this embodiment, two primary sides of the transformer 52 can be connected to the conductor connector 2 and the discharge electrode 3, respectively, so that the broadband pulse current flows through the primary side of the transformer 52, the secondary side output is subjected to rf rectification by the rf rectification unit 52, voltage conversion and fine rectification by the voltage conversion and fine rectification unit 53, high frequency components are removed by the filtering unit 54, and finally the output is output to the external load, the control module and the storage battery 56 by the output unit 55. The device utilizes broadband 'high-frequency' current formed in the charge transfer process between a high-potential conductor and a suspension potential conductor to obtain a direct-current power supply which can be used for charging a battery or directly using equipment through electromagnetic coupling, radio frequency rectification, quality improvement, isolation filtering and the like.
In the present embodiment, the air gap length d of the discharge gap can be calculated by using the following formula:
wherein U is a phase voltage of the high-voltage overhead line; k is a gap calculation coefficient, and k is more than or equal to 1 and less than or equal to 25. In this embodiment, the size of the floating potential conductor 1 may be determined according to the size of the space of the energy-taking power supply, and after the size of the conductor of the floating potential conductor 1 is determined, the capacitance to ground C1 of the floating potential conductor 1 may be obtained according to finite element analysis.
In this embodiment, k may be a constant determined according to practical experience, or may be determined based on the capacitance to ground of the floating potential conductor and the required power of the external load; preferably, the gap calculation coefficient k may be calculated using the following formula:
wherein, C1Is the capacitance to ground of the floating potential conductor; and P is the required power of the external load.
The gap calculation coefficient can be accurately determined through the ground capacitance of the suspended potential conductor and the required power of the external load, so that the accuracy of air gap length calculation is ensured; the air gap length of the discharge gap is calculated through the phase voltage of the high-voltage overhead line and the gap calculation coefficient k, so that the discharge gap between the discharge electrode 3 and the high-potential conductor 4 can meet the requirement of air gap breakdown, and further the generation of broadband current is ensured.
Because the gap calculation coefficient k is related to the required power of the external load, when the required power of the external load changes, the air gap length of the discharge gap also needs to change synchronously; in order to adjust the air gap length of the discharge gap, an insulation height adjuster 100 is preferably provided between the floating potential conductor 1 and the high potential conductor 4, and is used to adjust the distance between the floating potential conductor 1 and the high potential conductor 4 to adjust the air gap length of the discharge gap. Specifically, insulating altitude mixture control spare can be electronic extending structure, and its material is insulating material to avoid suspension electric potential conductor 1 with electricity between the high potential conductor 4 is connected, realizes simultaneously suspension electric potential conductor 1 with the regulation of the interval between the high potential conductor 4, and then realize the regulation of interval between discharge electrode 3 and the high potential conductor 4, realize the regulation of discharge gap's air gap length promptly, thereby ensure the stability of external load power supply at the device.
Referring to fig. 6, a block diagram of the structures among the insulation height adjuster, the sensor, and the controller according to an embodiment of the present invention is shown. As shown in the figure, in order to further facilitate the adjustment of the actual air gap length between the discharge electrode 3 and the high potential conductor 4, it is further preferable that a sensor 200 is provided on the high potential conductor 4 or the discharge electrode 3 for detecting the current discharge gap between the high potential conductor 4 and the discharge electrode 5; the sensor 200 is connected with a controller 300, the controller 300 is further connected with the insulation height adjusting member 200 to determine whether the discharge gap needs to be adjusted based on the current discharge gap received from the sensor 200, and when it is determined that the discharge gap needs to be adjusted, the controller 300 controls the insulation height adjusting member 100 to adjust the discharge gap between the high-potential conductor and the discharge electrode so that the discharge gap meets the discharge requirement.
Referring to fig. 7, a block diagram of a controller according to an embodiment of the present invention is shown. As shown, the controller 300 may include: an input unit 310, a calculation unit 320, and a control unit 330; the input unit 310 is used for inputting power required by an external load to the computing unit 320; the calculation unit 320 is electrically connected to the input unit 310, and is configured to receive the power required by the external load input by the input unit 310, and determine, in combination with the phase voltage of the high-voltage overhead line, a discharge gap required between the high-potential conductor 4 and the discharge electrode 3; and a control unit 330 electrically connected to the calculation unit 320 and the sensor 200, respectively, for receiving and comparing the required discharge gap determined by the calculation unit 320 and the current discharge gap detected by the sensor 200, and controlling the insulation height adjuster 100 to adjust the floating potential conductor 1 based on the comparison result of the required discharge gap and the current discharge gap, so as to adjust the discharge gap between the high potential conductor 4 and the discharge electrode 3, so that the discharge gap is adjusted to the required discharge gap.
The calculation unit 320 calculates the gap calculation coefficient k according to the following formula:
wherein, C1Is the capacitance to ground of the floating potential conductor; p is the required power of the external load; u is the phase voltage of the high-voltage overhead line;
and calculating the required air gap length d according to the gap calculation coefficient k:
in summary, the high potential online energy obtaining device for the high voltage overhead line provided by this embodiment has a discharge gap between the discharge electrode and the high potential conductor, and the potential difference between the discharge electrode and the high potential conductor causes the air gap breakdown of the discharge gap, so that the charges induced on the discharge electrode are transferred to generate a broadband current, which is transmitted to an external load via the conductor connecting member 2 and the discharge electrode 3 to supply power to the external load, thereby providing electric energy for high potential working equipment such as a sensor, an online monitoring device, a robot and an unmanned aerial vehicle, and further providing stable and continuous energy obtaining problems for the sensor, the online monitoring device, the robot, the unmanned aerial vehicle and the live working robot, and providing a power supply which is convenient to access, so that the sensor, the online monitoring device, the unmanned aerial vehicle and the live working robot are not limited by energy obtaining, therefore, the high-potential working equipment can be widely applied; the storage batteries of the inspection robot, the unmanned aerial vehicle and the working robot can be charged, so that the cruising ability of the inspection robot, the unmanned aerial vehicle and the working robot is improved, the inspection robot, the unmanned aerial vehicle and the working robot can work online for a long time, the working efficiency is improved, and the problem of power supply of high-potential working equipment is solved; in addition, the device not only can get the energy power than the induction electricity mode and get the electricity big, can satisfy the quick charge demand of equipment. Meanwhile, the device has small overall weight and greatly enlarges the application range.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (9)
1. A device for high potential online energy taking in a high voltage overhead line is characterized by comprising:
a floating potential conductor;
a conductor connecting member connected to the floating potential conductor;
a discharge electrode connected to the conductor connecting member through an insulating member;
a high-potential conductor having a discharge gap with the discharge electrode, the high-potential conductor being connected to a high-voltage overhead line, and forming a discharge channel between the high-potential conductor and the discharge electrode by using a phase voltage from the high-voltage overhead line, so as to supply power to an external load connected to the discharge electrode and the conductor connection member based on power generated by the discharge channel; wherein the discharge gap is determined based on a phase voltage of the high voltage overhead line;
the air gap length d of the discharge gap is calculated by using the following formula:
wherein U is a phase voltage of the high-voltage overhead line; k is a gap calculation coefficient, and k is more than or equal to 1 and less than or equal to 25.
2. The apparatus of claim 1, wherein the clearance calculation factor is determined based on the capacitance to ground of the floating potential conductor and the required power of the external load.
3. The device for high-potential on-line energy extraction on a high-voltage overhead line according to claim 2, wherein the clearance calculation coefficient k is calculated by using the following formula:
wherein, C1Is the capacitance to ground of the floating potential conductor; and P is the required power of the external load.
4. The device for high potential on-line energy extraction on a high voltage overhead line according to any one of claims 1 to 3,
an insulation height adjusting piece is arranged between the suspension potential conductor and the high potential conductor and used for adjusting the distance between the suspension potential conductor and the high potential conductor so as to adjust the air gap length of the discharge gap.
5. The device for high-potential on-line energy extraction on the high-voltage overhead line according to claim 4,
a sensor is arranged on the high-potential conductor or the discharge electrode and used for detecting the current discharge gap between the high-potential conductor and the discharge electrode;
the sensor is connected with a controller and sends the current discharge gap to the controller;
the controller is connected with the insulation height adjusting member to determine whether the discharge gap needs to be adjusted based on the current discharge gap received from the sensor, and when it is determined that the discharge gap needs to be adjusted, the controller controls the insulation height adjusting member to adjust the discharge gap between the high-potential conductor and the discharge electrode.
6. The device for high-potential on-line energy extraction on the high-voltage overhead line according to claim 5, wherein the controller comprises:
the input unit is used for inputting the power required by the external load to the computing unit;
the calculation unit is electrically connected with the input unit and used for receiving the power required by the external load input by the input unit and determining a discharge gap required between the high-potential conductor and the discharge electrode by combining the phase voltage of the high-voltage overhead line;
and the control unit is respectively electrically connected with the calculation unit and the sensor and used for receiving and comparing the required discharge gap determined by the calculation unit and the current discharge gap detected by the sensor, and controlling the insulation height adjusting piece to realize the adjustment of the suspension potential conductor based on the comparison result of the required discharge gap and the current discharge gap so as to adjust the discharge gap between the high potential conductor and the discharge electrode.
7. The device for high-potential online energy taking on the high-voltage overhead line according to any one of claims 1 to 3, wherein a current processing module is connected between the high-potential conductor and the discharge electrode, and comprises: the device comprises a transformer, a radio frequency rectifying unit, a voltage conversion and fine rectifying unit, a filtering unit, an output unit and a storage battery which are sequentially cascaded;
the transformer is used for energy coupling;
the radio frequency rectifying unit is used for rectifying the discharge current by adopting the series-parallel combination of Schottky diodes, and filtering the rectified discharge current by an LC circuit to obtain pulsating direct current;
the voltage conversion and fine rectification unit is used for performing fine rectification and voltage adjustment on the pulsating direct current by adopting a switching power supply to obtain high-frequency pulsating direct current;
the filtering unit is used for filtering the high-frequency pulsating direct current to provide direct current output with stable current and small ripple factor;
the output unit is used for providing direct current output with stable current and small ripple factor to the storage battery so as to charge the storage battery, and providing electric energy to an external load and/or a control module; the control module is respectively connected with the transformer, the radio frequency rectifying unit, the voltage conversion and fine rectifying unit, the filtering unit and/or the output unit and is used for controlling the operation states of the transformer, the radio frequency rectifying unit, the voltage conversion and fine rectifying unit, the filtering unit and/or the output unit.
8. The device for high-potential on-line energy extraction on the high-voltage overhead line according to claim 7,
and a primary side input lead terminal of the transformer is respectively connected with the conductor connecting piece and the discharge electrode.
9. The device for high potential on-line energy extraction on a high voltage overhead line according to any one of claims 1 to 3,
the conductor connecting piece and the discharge electrode are both provided with energy-taking lead terminals penetrating through the insulating piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011372818.8A CN112186818B (en) | 2020-11-30 | 2020-11-30 | Device for carrying out high-potential on-line energy obtaining on high-voltage overhead line |
| PCT/CN2021/117820 WO2022110976A1 (en) | 2020-11-30 | 2021-09-10 | Apparatus for high-potential online energy extraction in high-voltage overhead line |
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| CN202011372818.8A CN112186818B (en) | 2020-11-30 | 2020-11-30 | Device for carrying out high-potential on-line energy obtaining on high-voltage overhead line |
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| CN112186818A CN112186818A (en) | 2021-01-05 |
| CN112186818B true CN112186818B (en) | 2021-02-12 |
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Citations (7)
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| CN107070001A (en) * | 2017-05-10 | 2017-08-18 | 广东电网有限责任公司清远供电局 | Overhead transmission line electricity getting device and method |
| CN107607832A (en) * | 2017-08-19 | 2018-01-19 | 东北电力大学 | A kind of overhead transmission line on-line monitoring device based on contactless electricity getting system |
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| CN108414897A (en) * | 2018-01-24 | 2018-08-17 | 武汉大学 | A kind of helicopter livewire work combination the air gap discharge voltage prediction technique |
| CN108521174A (en) * | 2018-04-12 | 2018-09-11 | 西安交通大学 | A kind of high-voltage alternating electric field takes can circuit and self-excitation type power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005079786A (en) * | 2003-08-29 | 2005-03-24 | Sony Corp | Power transmission system, power supply apparatus, power receiving apparatus, signal transmission system, signal transmission apparatus, and signal receiving apparatus |
| CN112186818B (en) * | 2020-11-30 | 2021-02-12 | 中国电力科学研究院有限公司 | Device for carrying out high-potential on-line energy obtaining on high-voltage overhead line |
-
2020
- 2020-11-30 CN CN202011372818.8A patent/CN112186818B/en active Active
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- 2021-09-10 WO PCT/CN2021/117820 patent/WO2022110976A1/en active Application Filing
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| JPH1118292A (en) * | 1997-06-26 | 1999-01-22 | Omron Corp | Induction dc power unit on pole |
| CN106169888A (en) * | 2016-08-31 | 2016-11-30 | 重庆微标科技股份有限公司 | Electricity getting device, method and electric supply installation under railway overhead contact line environment |
| CN107070001A (en) * | 2017-05-10 | 2017-08-18 | 广东电网有限责任公司清远供电局 | Overhead transmission line electricity getting device and method |
| CN107607832A (en) * | 2017-08-19 | 2018-01-19 | 东北电力大学 | A kind of overhead transmission line on-line monitoring device based on contactless electricity getting system |
| CN108414897A (en) * | 2018-01-24 | 2018-08-17 | 武汉大学 | A kind of helicopter livewire work combination the air gap discharge voltage prediction technique |
| CN108134388A (en) * | 2018-03-08 | 2018-06-08 | 云南电网有限责任公司电力科学研究院 | A kind of electricity-fetching method and device of high voltage iron tower auxiliary equipment |
| CN108521174A (en) * | 2018-04-12 | 2018-09-11 | 西安交通大学 | A kind of high-voltage alternating electric field takes can circuit and self-excitation type power supply |
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| CN112186818A (en) | 2021-01-05 |
| WO2022110976A1 (en) | 2022-06-02 |
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