CN109494886A - A kind of wireless energy supply system based on electric field induction flat plate array - Google Patents
A kind of wireless energy supply system based on electric field induction flat plate array Download PDFInfo
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- CN109494886A CN109494886A CN201811620810.1A CN201811620810A CN109494886A CN 109494886 A CN109494886 A CN 109494886A CN 201811620810 A CN201811620810 A CN 201811620810A CN 109494886 A CN109494886 A CN 109494886A
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Classifications
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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
- H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/145—Liquid electrolytic capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/26—Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices with each other
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to power transmission technology fields, provide a kind of wireless energy supply system based on electric field induction flat plate array, including front end energy collecting device, overcurrent-overvoltage circuit protection unit, filter circuit of pressure-stabilizing unit and energy storage battery unit, the front end energy collecting device is arranged around transmission line of electricity, the front end energy collecting device includes multiple plate condensers and multiple bridge rectifiers, the output end of the plate condenser is separately connected the input terminal for being connected in the overcurrent-overvoltage circuit protection unit after a bridge rectifier in parallel, the output end of the overcurrent-overvoltage circuit protection unit is connect after the filter circuit of pressure-stabilizing with the input terminal of the energy storage battery unit.The present invention, which can use and store high voltage electricity transmission conductive wire, is formed by space potential energy, and then is powered to the various on-Line Monitor Devices loaded on shaft tower.
Description
Technical field
The present invention relates to power transmission technology fields, and in particular to a kind of wireless energy supply based on electric field induction flat plate array
System.
Background technique
The ultra-high-tension power transmission line of 110KV or more carries out dispatching transmission of electricity every suspension using three three-phase conducting wire high spatials.Conducting wire
At conveying high-pressure alternating current (between 100A~300A, 50HZ), the collective effect of You Sangen three-phase conducting wire promotes its space
Alternating electric field is generated, this has potential difference, the closer position of distance of wire by certain point that will lead in route and its space or over the ground
It sets, the energy of position relative to the earth is higher.The analysis mode of alternating electric field can be equal to electrostatic field, and difference is generated electricity
Galvanic electricity pressure is that alternating current voltage, direction cyclically-varying, while the electric field of alternation also will appear some field strength cataclysms, harmonic wave
The abnormal conditions of interference, so there are certain requirements for the design for adopting energy unit.Plate condenser type partial pressure takes energy mode to utilize
The principle of above-mentioned generation potential difference converts space potential energy, makes to generate induced voltage between plate condenser two-plate, thus away from
(safe distance, 5 meters) places a kind of plate condenser array absorption plant at the shaft tower remote from number of lead wires rice, can be maximum
Such energy of position is captured and is converted storage.
In addition, power grid department is on shaft tower to monitor on-line to the operating status of transmission line of electricity and the environment of surrounding
It is mounted with various on-Line Monitor Devices.It is introduced according to live maintenance staff, the sensor device generally uses the sun at this stage
Energy polar plate battery and wind power generation plant are powered, but influence of such power supply mode vulnerable to weather conditions, especially in yin
Under it or sleet environment, it is unable to satisfy the electrical energy demands of device at all, monitoring system is made to be in the state that short of electricity is unable to run, and
These running state datas can not stablize acquisition and transmission, the strong influence work of maintenance staff.Energy supply this kind of simultaneously
Device installation and replacement are comparatively laborious.A kind of new technology is badly in need of to the problem of on-Line Monitor Device power supply insufficient supply to change this
Class status.
Summary of the invention
For the problem of existing on-line monitoring device power supply technique deficiency, it is flat based on electric field induction that the invention proposes one kind
The wireless energy supply system of plate array solves the unvanquishable problem of solar energy pole plate and wind-power electricity generation power supply station, so that power supply
System no longer climate factor influences.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: one kind is based on electric field induction flat plate array
Wireless energy supply system, including front end energy collecting device, overcurrent-overvoltage circuit protection unit, filter circuit of pressure-stabilizing unit and accumulation of energy electricity
Pool unit, the front end energy collecting device are arranged around ultra-high-tension power transmission line, and the front end energy collecting device includes multiple plate electricity
Container and multiple bridge rectifiers, the output end of the plate condenser are connected in parallel after being separately connected a bridge rectifier
The output end of the input terminal of the overcurrent-overvoltage circuit protection unit, the overcurrent-overvoltage circuit protection unit is filtered through the pressure stabilizing
It is connect after wave circuit with the input terminal of the energy storage battery unit；
The top crown and bottom crown of the plate condenser use copper product, and surrounding insulating materials solidifies intermediate liquid
Electrolyte, top crown and junior's edges of boards edge are provided with rounded corner；The over-current over-voltage protection unit includes current fuse, pressure-sensitive
Resistance R and Transient Voltage Suppressor TVS；The width that the filter circuit of pressure-stabilizing is used to export the over-current over-voltage protection unit is straight
Galvanic electricity pressure is converted into the output voltage of 24V, and carries out noise reduction process to its ripple, to fill to the energy storage battery unit
Electricity.
The front end energy collecting device includes 90 plate condensers and 90 bridge rectifiers, 90 plate condensers
With 18 for one group, 5 near-spherical plate condenser arrays are formed, 5 near-sphericals plate condenser array is each with surrounding
One, the mode that center is one is evenly distributed, in each near-spherical plate condenser array, including 10 square plate capacitors
Device and 8 equilateral triangle plate condensers, 10 square plate capacitors and 8 equilateral triangle plate condensers are formed
The near-spherical structure of space octahedral.
The bridge rectifier is monophasic pulses if bridge rectifier.
The output end of the bridge rectifier is provided with anti-harmonic wave capacitor, and the anti-harmonic wave capacitor is the electrolysis of 68mF/50V
Capacitor.
The filter circuit of pressure-stabilizing unit includes DC-DC converter and LC filter circuit.
The LiFePO4 industrial battery that the energy storage battery unit is battery capacity 60AH, output voltage is DC24V.
Compared with the prior art, the invention has the following beneficial effects: the present invention provides one kind based on electric field induction plate battle array
The wireless energy supply system of column absorbs space potential energy by miniature array plate condenser, and plate condenser is according to specific parallel connection
Array algorithm arrangement, the big efficiency that dimensional energy may be implemented absorb；And pass through rectification unit, overcurrent-overvoltage and voltage regulation filtering electricity
Lu Hou gets up power storage, constantly charges for on-line monitoring sensor.Due to there is alternation electric on transmission line of electricity always
It presses, the fixation position in space can always exist metastable energy of position, also do not influenced by ambient weather, therefore energy-storage units
24 hours uninterrupted supplement energy of (lithium battery) energy, to provide a kind of innovative energy for on-Line Monitor Device
Method of supplying.In addition, the system is by the way of wirelessly taking energy, it is only necessary to install this set system in shaft tower, maintenance is convenient, is not necessarily to
Any device is installed on the transmission line, hot line job is not necessarily to, without applying for line outage.
Detailed description of the invention
Fig. 1 is a kind of structural principle frame of the wireless energy supply system based on electric field induction flat plate array proposed by the present invention
Figure；
Fig. 2 is the structural schematic diagram of plate condenser in the embodiment of the present invention；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is in the embodiment of the present invention, and 5 near-spherical arrays put schematic diagram.
Fig. 5 is that plate condenser puts the upper of near-spherical plate condenser permutation for space octahedral in the embodiment of the present invention
The schematic diagram of half part；
Fig. 6 is the top view of Fig. 5；
Fig. 7 is the circuit diagram of bridge rectifier in the embodiment of the present invention；
Fig. 8 is the circuit diagram of over-current over-voltage protection unit in the embodiment of the present invention；
Specific embodiment
To keep technical solution of the present invention and advantage clearer, below in conjunction with specific embodiments and the drawings, to this hair
Bright technical solution is clearly and completely described, it is clear that and described embodiment is a part of the embodiments of the present invention, and
The embodiment being not all of；Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the invention provides a kind of based on the wireless of alternating electric field space potential energy sorption enhanced
Energy supplying system, including plate condenser unit, rectifier unit, overcurrent-overvoltage circuit protection unit, filter circuit of pressure-stabilizing unit
With energy storage battery unit, wherein plate condenser unit includes 90 plate condenser C1~C90, and rectifier unit includes 90
Rectifier H00~H90 that a anti-three-phase alternating electric field harmonic wave influences, the output end of each plate condenser be separately connected one it is whole
Stream device forms front end and adopts energy unit, and multiple front ends are adopted can unit parallel connection formation front end energy collecting device.Wherein, front end energy collecting device is set
It sets around ultra-high-tension power transmission line, for absorbing the electric energy around transmission line of electricity.Wherein, this 90 plate condensers are according to specific
Absorption and rectification to alternation space potential energy are realized in the arrangement of parallel connected array algorithm；The output end of rectifier unit is flowed through with mistake
Volt circuit protection location is connected, to prevent because of environmental factor caused by Current Voltage moment excessive abnormal feelings in back-end circuit
Condition；Enter in filter circuit of pressure-stabilizing unit the pressure stabilizing carried out to low dc voltage by the electric current of overcurrent-overvoltage circuit protection unit
With the filtering of ripple, meet the requirement to the uninterrupted constant charge of energy-storage lithium battery unit.
Specifically, as shown in Fig. 2, in the embodiment of the present invention, the top crown and bottom crown of plate condenser are all made of copper material
Material, surrounding insulating materials solidify intermediate liquid electrolyte, and edge is using the anti-point discharge design of rounded corner.On increasing simultaneously
The thickness of bottom crown prevents between pole plate or the abnormal conditions of cell-edge mutation, also, uses and be with Kynoar (PVDF)
Matrix, using the precursor powder of the ferroelectric ceramics barium titanate (BT) of nanometer and the high dielectric constant of micro-meter scale as function addition group
Point, the polymer-based nano functional dielectrics composite material of the high dielectric constant prepared using special technique is led as electrolyte
It is electro-hydraulic.Meanwhile the drawbacks of to overcome such material property to influence with ambient temperature and humidity, one layer is smeared on each surface of its pole plate
High-performance coating, the coating are Parylene material (Parylene), which can play isolation air well
With the effect of thermal insulation.
The present invention uses a kind of filling electrolyte of high performance electrolyte as plate condenser, specific as follows:
Alternating electric field in space can use the analysis mode of electrostatic field, only different in terms of the electric current of generation.Electrostatic
In plate condenser generation be direct current and in alternating electric field plate condenser generation be alternating current.It designs in one kind
The plate condenser of bottom crown 10cm*10cm forms parallel connected array, utilizesWherein E is field strength, and U is potential difference (electricity
Pressure), D is exactly distance between plates, then the spacing of the plate condenser pole plate in array is 6mm, and the bottom crown of plate condenser connects
The ground line of shaft tower.For plane-parallel capacitor, capacitance is fixed value, by dielectric constant, the right opposite area of pole plate and
Away from decision, there is general formulaThe value C=400UF of the single plate condenser of design.AndIt is i.e. electric
Appearance=the quantity of electric charge/voltage adopts the current value of energy unit each since 90 plate condensers are in parallel array-type as addition, I
Always=I1+I2+......+I90.
Therefore whole plate condenser is the sum of the power that each tablet capacitor generates, the electricity that individual unit generates
Stream is 10mA, and the electric current integrally generated is 10mA*90=0.9A, (is managed in 20W or more the charge power of rear end accumulation of energy lithium battery
By calculated value in 0.9A*24V=21.6W or so), meet charge power greater than discharge power (the total load power of detection device)
Principle.
Parallel capacitor guarantees that the stabilization field strength between pole plate is the key that the design of leading portion taking energy unit in design.Such as
It is the key that this system what is the need except the mutation of alternation field strength between space or pole plate.By transformation luxuriant and rich with fragrance more than Shi Wanzi-Chris to sky
Between plate condenser analysis, it is known that:
Wherein Z represents the transform that carries out in Z plane, and v0 is pole plate electromotive force, w for position in pole plate to pole plate distance,
D is the spacing of two-plate.Pole plate takes top crown as research object, obtains in conjunction with the analysis method of the graceful condition of Cauchy-pears,
As w →-∞, i.e., electrode thickness increases,The field strength of capacity plate antenna closer to theoretical value,
In order to eliminate the mutation of alternation field strength between space or pole plate, under conditions of guaranteeing that structure and manufacture craft allow, maximize
Increase pole plate thickness, be make plate condenser core key.In the embodiment of the present invention, the top crown of plate condenser
It is greater than d/2 with the range of bottom crown thickness, the section less than d, specifically, thickness can be set to 3mm~6mm, thus originally
Plate condenser in inventive embodiments can eliminate the mutation of alternation field strength between space or pole plate.
The array placement position of plate condenser is also vital simultaneously, is related to what how front end efficiently absorbed
The single array element of energy of position in space, rectangle plane array is analyzed in the case where amplitude weighting and displacement calculate, and passes through array direction
The modulus value AF of figure function model is indicated are as follows:
Exp is to represent using natural constant e as the exponential function at bottom in higher mathematics, and M and N indicate X-coordinate direction and Y-coordinate
Number a little is taken on direction, m and n indicate this coordinate values, and dx and dy are differentiated to X and Y-direction.amnRefer to sky
The coordinate of the interior point, j and k indicate the normal vector on direction, and wherein U and V is the direction vector in space, sit from planar array XY
The global view of system is marked, and by the optimization of element position, the geometry abstract analysis from plane to space obtains wherein
It is one group that 90 plate condenser disposing ways, which are with 18, forms 5 near-spherical plate condenser arrays, 5 classes
Spherical plate condenser array is with surrounding each one, and the mode that center is one is evenly distributed, as shown in Figure 4；As shown in figure 5, being
Plate condenser puts the signal of the top half of the near-spherical plate condenser permutation for space octahedral in the embodiment of the present invention
Figure, the lower half portion of the array and top half are symmetrical about plane where the dash area in figure；It can be seen from the figure that every
In a near-spherical plate condenser array, including 10 square plate capacitors and 8 equilateral triangle plate condensers, it is described
10 square plate capacitors and 8 equilateral triangle plate condensers form the near-spherical structure of space octahedral, and the structure is total
There are 18 faces, each plate condenser is located in one of on surface, and such array format can absorb space to the greatest extent
In energy of position.
The electric field that transmission line of electricity surrounding space is spread also is alternating electric field, and just the field strength of fixed position is essentially fixed
Intensity, analysis method are equal to electrostatic field, by taking 110kV transmission line of electricity as an example, the average field-strength size at its 5m about
For 4000v/m or so.It is also alternating current by the electric energy that plate condenser converts, alternating current can not be directly to energy-storage units
It charges, therefore, it is necessary to alternating current is converted to DC current.Therefore, unidirectional pulse is used in the embodiment of the present invention
Bridge rectifier is rectified as output alternating current of the rectifier to plate condenser, as shown in fig. 7, being the embodiment of the present invention
In, it is the schematic diagram of Unidirectional direct-current output voltage by AC conversion, the capacitor C of the output end of rectifier bridge is anti-harmonic wave electricity in figure
Hold.
For three-phase bridge rectifier circuit, how to reduce influence of the harmonic wave to system of superposition, is the emphasis of integrated circuit.
For superposition harmonic wave influence analysis, by conventional harmonic superposition algorithm it is found that
Pass through the electric current I of capacitorc=ω Cvcos (ω t), the electric current of loadCharging currentFor different harmonic waves, phase ω is different, passes through formula
It may determine that, influence IdFactor be load capacitance C capacitance, need bridge rectifier rear end add one it is specific
The patch capacitor of numerical value filters out harmonic wave, to reduce influence of the superposition harmonic wave to back-end circuit.Simplified by above-mentioned formula
The formula of selection filter capacitor reference outT is the transformation period for being superimposed harmonic wave.Consider the electricity of power grid
Pressure fluctuation is ± 10%, so selecting the electrolytic capacitor C of 68mF/50V as anti-harmonic wave capacitor to complete to alternation electricity AC24V's
Convert the filtering of DC24V.
As shown in figure 8, in the embodiment of the present invention, overcurrent-overvoltage circuit protection unit 3 be include current fuse F, it is pressure-sensitive
The integrated circuit of resistance R1 and Transient Voltage Suppressor TVS combination, the output end of plate condenser export after current fuse F
To filter circuit of pressure-stabilizing, the output end of current fuse is also followed by by varistor R1 and Transient Voltage Suppressor TVS respectively
Ground provides voltage in safe range for back-end circuit, avoids because of power supply line's corona discharge, the brings such as environment cataclysm
The influence of spatial field potential extreme variation.
Specifically, in the embodiment of the present invention, filter circuit of pressure-stabilizing unit includes DC-DC converter and LC filter circuit.Its
Noise reduction process is carried out for converting wide DC voltage to the output voltage of 24V, while to its ripple, so as to be accumulation of energy electricity
Pool unit 5 charges.
Specifically, in the embodiment of the present invention, energy storage battery unit is battery capacity 60AH, output voltage is DC24V phosphorus
Sour iron lithium industrial battery.
The present invention provides a kind of wireless energy supply systems based on electric field induction flat plate array, and this system obviates by severe
The influence of natural weather factor continuously can convert the required energy for energy of position.Moreover, the system takes energy using wireless
Mode, it is only necessary to this set system is installed in shaft tower, maintenance is convenient, without installing any device on the transmission line, is not necessarily to band
It is electrically operated, without applying for line outage.Practical application experience shows that the problem of on-Line Monitor Device maximum is exactly that power supply is supplied not
Foot.The alternating electric field that its spatial position where when the electric energy of the system is directed to transmission line of electricity operation generates, by sky
Between energy of position conversion, Storage Unit be continuously equipment energy supply, moreover, high-voltage conducting wires are formed by space potential energy
Amount, can always exist, and if not being used, can be fallen by the environment institute slow consumption of surrounding, be equal to the waste of electric power energy.This
Outside, the arrangement of plate condenser discharges algorithm by completely new space array in the present invention, can absorb the position to the greatest extent
Energy of position, moreover, the plate condenser in the system can be prevented by alternating electric field bring point discharge, cell-edge mutation
The problem of bringing.
The embodiment of the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Example, within the knowledge of a person skilled in the art, can also make without departing from the purpose of the present invention
Various change out.
Claims (6)
1. a kind of wireless energy supply system based on electric field induction flat plate array, which is characterized in that including front end energy collecting device, overcurrent
Overvoltage circuit protection location (3), filter circuit of pressure-stabilizing unit (4) and energy storage battery unit (5), the front end energy collecting device setting
Around ultra-high-tension power transmission line, the front end energy collecting device includes multiple plate condensers (1) and multiple bridge rectifiers (2),
The output end of the plate condenser (1) is connected in the overcurrent-overvoltage electricity in parallel after being separately connected a bridge rectifier (2)
The input terminal of road protection location (3), the output end of the overcurrent-overvoltage circuit protection unit (3) is after the filter circuit of pressure-stabilizing
It is connect with the input terminal of the energy storage battery unit；
The top crown and bottom crown of the plate condenser (1) use copper product, and surrounding insulating materials solidifies intermediate liquid
Electrolyte, top crown and junior's edges of boards edge are provided with rounded corner；The over-current over-voltage protection unit (3) includes current fuse,
Varistor R and Transient Voltage Suppressor TVS；The filter circuit of pressure-stabilizing is used for the over-current over-voltage protection unit (3) is defeated
Wide DC voltage out is converted into the output voltage of 24V, and carries out noise reduction process to its ripple, thus to the energy storage battery list
First (5) charge.
2. a kind of wireless energy supply system based on electric field induction flat plate array according to claim 1, which is characterized in that institute
Stating front end energy collecting device includes 90 plate condensers (1) and 90 bridge rectifiers (2), 90 plate condensers (1)
With 18 for one group, 5 near-spherical plate condenser arrays are formed, 5 near-sphericals plate condenser array is each with surrounding
One, the mode that center is one is evenly distributed, in each near-spherical plate condenser array, including 10 square plate capacitors
Device and 8 equilateral triangle plate condensers, 10 square plate capacitors and 8 equilateral triangle plate condensers are formed
The near-spherical structure of space octahedral.
3. a kind of wireless energy supply system based on electric field induction flat plate array according to claim 1, which is characterized in that institute
Stating bridge rectifier (2) is monophasic pulses if bridge rectifier.
4. a kind of wireless energy supply system based on electric field induction flat plate array according to claim 3, which is characterized in that institute
The output end for stating bridge rectifier is provided with anti-harmonic wave capacitor, and the anti-harmonic wave capacitor is the electrolytic capacitor of 68mF/50V.
5. a kind of wireless energy supply system based on electric field induction flat plate array according to claim 1, which is characterized in that institute
Stating filter circuit of pressure-stabilizing unit includes DC-DC converter and LC filter circuit.
6. a kind of wireless energy supply system based on electric field induction flat plate array according to claim 1, which is characterized in that institute
State the LiFePO4 industrial battery that energy storage battery unit is battery capacity 60AH, output voltage is DC24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620810.1A CN109494886A (en) | 2018-12-28 | 2018-12-28 | A kind of wireless energy supply system based on electric field induction flat plate array |
Applications Claiming Priority (1)
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| CN112104082A (en) * | 2020-09-16 | 2020-12-18 | 西安交通大学 | System and method for monitoring live state of power distribution network line based on Internet of things technology |
| CN115173577A (en) * | 2022-08-17 | 2022-10-11 | 华北电力大学 | Energy taking circuit and system |
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| CN115173577A (en) * | 2022-08-17 | 2022-10-11 | 华北电力大学 | Energy taking circuit and system |
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