CN107453490A - A kind of Contactless power transmission device - Google Patents
A kind of Contactless power transmission device Download PDFInfo
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- CN107453490A CN107453490A CN201710855662.0A CN201710855662A CN107453490A CN 107453490 A CN107453490 A CN 107453490A CN 201710855662 A CN201710855662 A CN 201710855662A CN 107453490 A CN107453490 A CN 107453490A
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to wireless power transmission technology, and in particular to a kind of Contactless power transmission device, including power transmitting element and power receiving unit；Power transmitting element includes：Double CT taking energy coils, rectification and closed loop impedance-matching device, high intensity light source, LCL compensation devices, Electromagnetic Launching coil；Power receiving unit includes：Electromagnetism receiving coil, series compensation device, rectifying and voltage-stabilizing device, energy storage device；Double CT taking energy coils are sequentially connected with rectification and closed loop impedance-matching device, high intensity light source, LCL compensation devices, and LCL compensation devices are connected with Electromagnetic Launching coil；Series compensation device is connected with electromagnetism receiving coil, and series compensation device and regulator rectifier circuit, energy storage device are sequentially connected, energy storage device connection load.The transmitting device can both ensure enough electric energy acquisitions, can mitigate circuit load-bearing again；Enough power outputs are also ensured, extend the life-span of battery.With wide market application foreground.
Description
Technical field
The invention belongs to wireless power transmission technical field, more particularly to a kind of Contactless power transmission device.
Background technology
In recent years, with intelligent grid concept deepen constantly and its continuous development of technology, digital monitoring technology
Using more prevalent, particularly in high pressure monitoring system, some digital monitoring equipment have been realized in industrialization, at this
How the major issue that must be solved in the implementation process of a little monitoring systems is persistently powered to these electrical equipments.Pass
The method of system has two kinds：One kind is to take energy using solar panel, although this method cost is relatively low, shortcoming is very bright
Aobvious, to ensure to export enough power, solar panel needs very big area, these batteries are fixed on high pressure shaft tower
Plate, the problem of certain be present；In addition, this method is bigger by inside even from weather, it is difficult to stable power-supplying.
The power supply plan of another shaft tower electrical equipment is to utilize storage battery power supply, relative to solar panel, electric power storage
Pond power supply is more stable, but conventional accumulators finite capacity, and discharge time falls short of, it is necessary to often change, and maintenance cost is high,
Other conventional accumulators are too heavy, and the structural stability of shaft tower may be caused necessarily to influence on shaft tower.For
The power supply problem of high pressure shaft tower electrical equipment at present, wireless power transmission technology is considered as to overcome above-mentioned variety of problems.
Existing wireless power transmission technology comprises at least following five directions：Induction, electromagentic resonance formula, microwave
Formula, ultrasonic type and laser type.
It is induction：The general principle of electromagnetic induction is based on Faraday's electromagnetic induction law, and its basic structure is similar to
Transformer, respectively there is a coil on transmitter and receiver, transmitting end-coil is connected with line power supply, and electric current is produced by coil
Electromagnetic signal, the electromagnetic signal of the coil-induced transmitting terminal of receiving terminal are supplied to electricity consumption end equipment so as to produce electric current.Feature is to pass
Defeated power is big, efficiency high, but transmission range is short, the closely power transmission for small middle power.
The principle of electromagentic resonance is identical with the resonance principle of tuning fork.The identical vibration frequency that has being arranged in a magnetic field
Coil, electric energy transmission of the energy from a coil to another coil can also be realized because its vibration frequency characteristic is identical.It is special
Point be transmission range farther out, one-to-many biography energy can be achieved, but efficiency of transmission is relatively low, is passed suitable for the moderate distance of mid power
It is defeated.
Microwave type：Microwave technology development is more ripe, and principle is identical with radio, mainly there is microwave launcher and microwave
Reception device is formed, and reception device receives the microwave signal of transmitting terminal transmitting by micro-strip arrangement antenna and converted it to steady
Fixed voltage x current output.Feature is long transmission distance, and energy is larger, but less efficient, and microwave radiation safety be present and ask
Topic, available for high-power, several meters of long-distance transmissions for arriving several kms.
Ultrasonic wireless is powered：Ultrasonic wave refers to that more than the sound wave outside ear recognition scope its operation principle is based on pressure
Electrical effect and inverse piezoelectric effect.Ultrasonic wave can be conveniently transformed into electric energy by the inverse piezoelectric effect of piezoelectric, its realization side
Formula be transmitting terminal by controlling piezoelectric device to convert electrical energy into ultrasonic wave, receiving terminal passes through piezoelectric receiving device
Ultrasonic energy is converted to electric energy by inverse piezoelectric effect.Feature be transmission range farther out, can be achieved it is " one-to-many " pass can, but power
It is smaller, the wireless charging available for electronic products such as mobile phones.
Laser type：Laser can realize energy using the directionality transmission and its attenuation characteristic in space of laser
Transmission, its principle is that electric energy is converted to orientation laser by transmitting terminal by optics, and receiving terminal passes through laser pick-off device
Electric energy is converted light energy into, so as to realize being wirelessly transferred for electric energy.Feature is long transmission distance, and efficiency of transmission is high, transimission power
It is larger, but can not isolate and align that precision requirement is higher, the point-to-point charging applied to equipment such as unmanned planes.
The content of the invention
It is an object of the invention to provide a kind of device using wireless power transmission technology transfer electric energy, and energy is taken using double CT
It coil, can both ensure enough electric energy acquisitions, transmission line of electricity load-bearing can be mitigated again；The energy storage device at electrical equipment end is using lithium electricity
Pond and the stand-by power supply scheme of super capacitor, both alleviate installation weight, moreover it is possible to ensure enough power output and power output
Stability, while extend the life-span of lithium battery；Compensation circuit is added in transmitting terminal and receiving terminal, realizes that constant current constant voltage supplies
Electricity.
To achieve the above object, the technical solution adopted by the present invention is：A kind of Contactless power transmission device, including power hair
Send unit and power receiving unit；
Power transmitting element includes：Double CT taking energy coils, rectification and closed loop impedance-matching device, high intensity light source, LCL
Compensation device, transmitting coil；
Power receiving unit includes：Receiving coil, series compensation device, rectifying and voltage-stabilizing device, energy storage device；
Double CT taking energy coils connect successively with rectification and closed loop impedance-matching device, high intensity light source, LCL compensation devices
Connect, LCL compensation devices are connected with transmitting coil；
Series compensation device is connected with receiving coil, and series compensation device and regulator rectifier circuit, energy storage device connect successively
Connect, energy storage device connection load；
Transmitting coil transmits energy to receiving coil.
In above-mentioned Contactless power transmission device, receiving coil and transmitting coil be respectively arranged in insulator upper end and under
End；Double CT taking energy coils are wound on transmission line of electricity；Rectification and closed loop impedance-matching device, high intensity light source and LCL compensation dresses
Put and hang on transmission line of electricity；Energy storage device is arranged on the inside of insulator suspension holdfast, series compensation device and rectifying and voltage-stabilizing
Device is arranged on the outside of the suspension holdfast of insulator.
In above-mentioned Contactless power transmission device, high-permeability material layer is added in receiving coil and transmitting coil,
Its center is provided with clamping rings, and coil is fixed using three stability maintenance supports, and angle is 120 between every two stability maintenance supports
Degree, and stability maintenance support uses triangular supports；Receiving coil is arranged on insulator upper end by clamping rings；Transmitting coil passes through
Clamping rings is arranged on insulator lower end, and the stability maintenance support being arranged on transmitting coil is connected with transmission line of electricity.
In above-mentioned Contactless power transmission device, double CT taking energy coils using double magnet ring CT structures, and two magnet ring CT it
Between have interval.
In above-mentioned Contactless power transmission device, rectification uses isolation type rectification circuit with closed loop impedance-matching device,
And Hall voltage element and Hall current element are added after rectification circuit.
In above-mentioned Contactless power transmission device, energy storage device is connected in parallel on lithium battery both ends using super capacitor.
In above-mentioned Contactless power transmission device, high intensity light source uses full-bridge inverting mode.
In above-mentioned Contactless power transmission device, series compensation device uses compound switching collocation structure.
The beneficial effects of the invention are as follows：Twin coil CT takes energy, takes into account the load-bearing requirements for taking energy power requirement and transmission line of electricity；
Rectification ensures that CT takes the maximization of energy power with closed loop impedance matching；Wireless charging technology will on the basis of efficiency of transmission is ensured
High-pressure side is isolated with low-pressure side；The LCL compensation devices of transmitting terminal ensure that Wireless power transmission system externally has relative constancy
Transmitting alternating magnetic field, strengthening system stability；The compound switching collocation structure of receiving terminal realizes constant pressure by switching switching
Output constant current exports, and realizes simple constant voltage constant current charging mode；The stand-by power supply of electrical equipment is using super capacitor and lithium electricity
Pond composite energy storage, had both ensured energy storage effect, extended the life-span of lithium battery again.Wireless power transmission dress involved in the present invention
To put, design understands, has taken into full account the problem of being likely to occur during wireless charging, and proposes various solutions,
Power supply for high pressure shaft tower electrical equipment provides scientific and effective scheme.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention；
Fig. 2 is the scheme of installation of one embodiment of the invention；
Fig. 3 is double CT taking energy coils schematic diagrames of one embodiment of the invention；
Fig. 4 is rectification and the circuit diagram of closed loop impedance-matching device 12 of one embodiment of the invention；
Fig. 5 is the main circuit topology figure of one embodiment of the invention；
Fig. 6 (a) is the coupling coil schematic diagram of one embodiment of the invention, and Fig. 6 (b) is one embodiment of the invention coupling
Coil installation diagram；
Fig. 7 is the first operation mode of the stand-by power supply of one embodiment of the invention electrical equipment；
Fig. 8 is second of operation mode of stand-by power supply of one embodiment of the invention electrical equipment；
Fig. 9 is the third operation mode of the stand-by power supply of one embodiment of the invention electrical equipment；
Wherein：1- power emitting units, the double CT energy taking devices of 11-, 12- rectifications and closed loop impedance-matching device, 13- high frequencies
Supply unit, 14-LCL compensation devices, 15- transmitting coils；2- power receiving units, 21- receiving coils, 22- series compensations dress
Put, 23- rectifying and voltage-stabilizing devices, 24- energy storage devices, 25- loads.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
The present embodiment realizes that a kind of Contactless power transmission device, including power are sent using following technical scheme
Unit and power receiving unit；
Power transmitting element includes：Double CT taking energy coils, rectification and closed loop impedance-matching device, high intensity light source, LCL
Compensation device, transmitting coil；
Power receiving unit includes：Receiving coil, series compensation device, rectifying and voltage-stabilizing device, energy storage device；
Double CT taking energy coils connect successively with rectification and closed loop impedance-matching device, high intensity light source, LCL compensation devices
Connect, LCL compensation devices are connected with transmitting coil；
Series compensation device is connected with receiving coil, and series compensation device and regulator rectifier circuit, energy storage device connect successively
Connect, energy storage device connection load；
Transmitting coil transmits energy to receiving coil.
Further, receiving coil is respectively arranged in insulator top and bottom with transmitting coil；Double CT taking energy coils are wound on
On transmission line of electricity；Rectification and closed loop impedance-matching device, high intensity light source and LCL compensation devices hang on transmission line of electricity
On；Energy storage device is arranged on the inside of insulator suspension holdfast, and series compensation device and rectifying and voltage-stabilizing device are arranged on insulator
On the outside of suspension holdfast.
Further, high-permeability material layer is added in receiving coil and transmitting coil, its center is provided with fixed circle
Ring, coil are fixed using three stability maintenance supports, and angle is 120 degree between every two stability maintenance supports, and stability maintenance support uses three
Angular support frame；Receiving coil is arranged on insulator upper end by clamping rings；Transmitting coil is arranged on insulation by clamping rings
Sub- lower end, the stability maintenance support being arranged on transmitting coil are connected with transmission line of electricity.
Further, double CT taking energy coils are using double magnet ring CT structures, and have interval between two magnet ring CT.
Further, rectification uses isolation type rectification circuit with closed loop impedance-matching device, and is added after rectification circuit
Hall voltage element and Hall current element.
Further, energy storage device is connected in parallel on lithium battery both ends using super capacitor.
Further, high intensity light source uses full-bridge inverting mode.
Further, series compensation device uses compound switching collocation structure.
When it is implemented, a kind of Contactless power transmission device, including power transmitting element and power receiving unit.Power is sent out
Unit is sent to include：Double CT taking energy coils, rectification and closed loop impedance-matching device, high intensity light source, LCL compensation devices, transmitting
Coil；Power receiving unit includes：Receiving coil, series compensation device, rectifying and voltage-stabilizing device, energy storage device.Its workflow
For：Double CT taking energy coils are connected, closed loop impedance-matching device is real-time from transmission line of electricity high pressure side draw energy with isolation type rectification circuit
Matched load impedance；High intensity light source produces high-frequency alternating current, provides constant height to transmitting coil after LCL compensation devices
Frequency electric current；Through series compensation device and rectifying and voltage-stabilizing device after receiving coil receiving power, realize that constant pressure output is energy storage device
Power supply, and then be the load supplying of corresponding ultra-high-tension power transmission line low-pressure side.
Moreover, to taking energy module to improve, traditional CT, which takes, can only have unicoil, and CT takes energy magnet ring heavier, wirelessly
Power supply region needs 100W electric energy to input, and in design, single CT magnet rings take energy capacity smaller, if design meets
The CT magnet rings weight of 100W output demands may have undesirable effect to transmission line of electricity.For these problems, using double magnet rings
CT structures, it is spaced apart between two magnet ring CT in practical application on transmission line of electricity, it can both ensure that weight of equipment will not be right
Transmission line of electricity has undesirable effect, and ensures that the stability for taking energy modular power output.
Be additionally, since the change of load impedance can influence to take can power size, after the rectification circuit of transformer secondary side
Add Hall voltage element to sample the voltage of output end with electric current with Hall current element, calculate load impedance simultaneously
By feedback of the information to impedance matching control module, impedance matching control module is by impedance information and primary side resistance ratio compared with and sending
Signal drives sliding motor, changes the secondary number of turn by changing centre tapped position so thatOrFormer secondary impedance matching is realized, guarantee takes energy power to reach maximum.In formula, N1：Rectified current
The road primary coil number of turn, N2、N3：The rectification circuit secondary coil number of turn, Zload：The load impedance of rectification circuit, R0：Twin coil electricity
Current transformer secondary sampler resistance, ReFor impedance ZloadReal part.
Moreover, consider several factors when choosing transformation of electrical energy circuit, it is contemplated that wireless power supply system high frequency electric source
The factors such as the power transmission grade of present Research and system, application scenario and coupled system structure, power consumption, heat dissipation problem are to hair
The constraint of end high frequency conversion device, and limitation of the live actual installation to high frequency power module size are penetrated, it is whole to improve system
The utilization rate and efficiency of physical efficiency amount, the wireless power high frequency conversion topology of the present embodiment are realized by full-bridge inverting mode.
Moreover, all add compensation circuit in transmitting terminal and receiving terminal.Because the windage yaw of transmission line of electricity, shake etc. can cause
The change of mutual inductance value, and then the robustness of system is influenceed, the compensation topology structure for being suitable for transmission line of electricity particular surroundings need to be designed；
When transmitting terminal uses LCL compensation devices as compensation topology, receiving coil inductance value, load and mutual inductance change do not interfere with hair
The current value flowed through on ray circle, ensure that wireless power supply system externally has the transmitting alternating magnetic field of relative constancy, the stability of a system
Enhancing.Meanwhile LCL compensation devices cause electric stress requirement of the resonance driving topology to switch element to reduce.In receiving terminal, adopt
With compound switching collocation structure series compensation device, the voltage of receiving terminal can be stablized, realize that constant pressure exports by switching switching
Constant current output, this switching collocation structure can realize simple constant voltage constant current charging mode, while reduce emission current and switch
Loss, it is load supplying to realize constant current constant voltage.To sum up, the present embodiment is mended in wireless power supply system from the compound switchings of LCL
Repay topological network.
Moreover, being improved coupling coil, in order to improve electromagnetic transmission efficiency, high magnetic permeability is added in coil
Material, while in order to fix coil on the insulator, clamping rings is added, and it is best in view of the stability of triangle,
Stability maintenance support uses A-frame form, and the angle between every two supports is 120 degree.The fixed support of transmitting coil also with height
Line ball road is connected, and ensures transmitting coil end and high-tension line equipotential, avoids high-tension circuit from causing electromagnetic interference to transmitting coil.
The load for being additionally, since power system includes peak period and low ebb phase, in order to ensure the extreme case present apparatus still
It can work, electrical equipment must have stand-by power supply.But the space of high pressure shaft tower is limited, common batteries weight is big, may
Tower structure is adversely affected；Cycle-index is limited, short life, and maintenance cost is high.For this problem, the present embodiment storage
Energy device uses lithium battery as reserve battery, and in lithium battery both ends parallel connection super capacitor.Super capacitor and lithium battery all compared with
It is light, alleviate the weight of whole device.And super capacitor is connected in parallel on lithium battery both ends, be advantageous to stablize the input electricity of lithium battery
Pressure, reduces the loss of lithium battery.The addition of super capacitor can reduce the discharge and recharge number of lithium battery simultaneously, extend lithium battery
Life-span.
As shown in figure 1, a kind of Contactless power transmission device, including：Power transmitting element 1 and power receiving unit 2.Power
Transmitting element 1 includes：Double CT taking energy coils 11, rectification and closed loop impedance-matching device 12, high intensity light source 13, LCL compensation
Circuit 14, transmitting coil 15；Power receiving unit 2 includes：Receiving coil 21, series compensation device 22, rectifying and voltage-stabilizing device 23,
Energy storage device 24, load 25.Double CT taking energy coils 11 take energy from transmission line of electricity during work, are connected with isolation type rectification circuit, close
Ring impedance matching real-time matching load impedance；High intensity light source 13 produces high-frequency alternating current, to transmitting after LCL compensation devices
Coil 15 provides constant current, improves the stability of system；Through series compensation device after the receiving power of receiving coil 21, it is embodied as
Load the power supply of 25 constant pressures.
As shown in Fig. 2 installation when the present embodiment Contactless power transmission device is high pressure shaft tower electrical equipment wireless power
Schematic diagram.Double CT taking energy coils 11 are wound on ultra-high-tension power transmission line, and are integrated with isolation type rectification circuit and closed loop impedance matching
Device, to avoid insulator load-bearing too big, high intensity light source 13 equally hangs on ultra-high-tension power transmission line with LCL compensation devices 14
On.Transmitting coil 15 hangs on insulator lower end, in order to which transmitting coil 15 is fixed on the insulator, consolidating on transmitting coil 15
Fixed rack uses triangular structure, and angle is 120 degree between every two.Receiving coil 21 is installed on insulator top, receives
Coil 21 uses the fixed support same with transmitting coil 15.The series compensation device 22 and rectifying and voltage-stabilizing device of power receiving side
23 are arranged on the suspension holdfast of insulator, and the combination in view of lithium battery and super capacitor is heavier, and energy storage device 24 is installed
In the inclined inner side of suspension holdfast, to improve stability.
As shown in figure 3, being double CT taking energy coil schematic diagrames, traditional CT, which takes, can only have unicoil, and CT take energy magnet ring compared with
Weight, the wireless power supply system design involved by the present embodiment need 100W electric energy to input, and in design, single CT magnet rings take energy
Capacity is smaller, and design meets that the CT magnet rings weight of 100W output demands may have undesirable effect to transmission line of electricity.For
This problem, it is spaced apart between two magnet ring CT in transmission line of electricity practical application using double magnet ring CT structures, it can both protect
Card weight of equipment will not have undesirable effect to transmission line of electricity, ensure that CT takes the stability of the power output of energy module.
As shown in figure 4, it is the rectification and the circuit diagram of closed loop impedance-matching device 12 of the present embodiment, due to Current Mutual Inductance
The load change of device can influence the power output of energy taking device, and being taken when realizing optimum impedance matching can power maximum.Closed loop hinders
The programme of work of anti-coalignment is：The current signal of current transformer is changed into voltage signal by sampling resistor, and as every
The input of release rectification circuit, rectification circuit output end add Hall voltage element with Hall current element to output end
Voltage is sampled with electric current, is calculated load impedance and is controlled feedback of the information to impedance matching control module, impedance matching
Module is by impedance information and primary side resistance ratio compared with and sending signal driving sliding motor, changed by changing centre tapped position
Become the secondary number of turn so thatOrFormer secondary impedance matching is realized, ensures to take
Energy power reaches maximum.
As shown in figure 5, it is the topology diagram of the present embodiment main circuit.UinFor the output voltage of rectification circuit, it is contemplated that
The present Research of the wireless power supply system high frequency electric source and power transmission grade of system, application scenario and coupled system structure etc.
Factor, the constraint of power consumption, heat dissipation problem to transmitting terminal high frequency conversion device, and live actual installation are big to high frequency power module
Small limitation, to improve the utilization rate and efficiency of system integral energy, the wireless power high frequency conversion topology of the present embodiment is by complete
Bridge inverting is realized.Compensation circuit is added in transmitting terminal and receiving terminal.Because the windage yaw of transmission line of electricity, shake etc. can cause
The change of mutual inductance value, and then the robustness of system is influenceed, it need to design and be suitable for transmission line of electricity particular surroundings compensation topology structure；
When transmitting terminal uses LCL type as compensation topology, receiving coil inductance value, load and mutual inductance change are not interfered with transmitting coil
The current value flowed through, ensure that wireless power supply system externally has the transmitting alternating magnetic field of relative constancy, stability of a system enhancing.Together
When, LCL collocation structures cause electric stress requirement of the resonance driving topology to switch element to reduce.In receiving terminal, series compensation
Device uses compound switching collocation structure, can stablize the voltage of receiving terminal, realizes that constant pressure output constant current is defeated by switching switching
Go out, this switching collocation structure can realize simple constant voltage constant current charging mode, while reduce emission current and switching loss, real
Existing constant current constant voltage is load supplying.
As shown in Fig. 6 (a), it is the present embodiment transmitting coil 15 and the structural representation of receiving coil 21, is added in coil
High-permeability material layer.As shown in Fig. 6 (b), in order to which coil is fixed on into insulator, be also provided with coil clamping rings and
Stability maintenance support, and it is best in view of the stability of triangle, and stability maintenance support uses A-frame, between every two stability maintenance supports
Angle is 120 degree.The stability maintenance support of transmitting coil 15 is connected with transmission line of electricity, ensures the electricity such as transmitting coil end and transmission line of electricity
Position, avoids transmission line of electricity from causing electromagnetic interference to transmitting coil.
To improve the electrical stability of system and extending the life-span of lithium battery, energy storage device uses super capacitor and lithium battery
Composite energy storage method.Super capacitor has high power density as energy-storage travelling wave tube, and is limited without discharge and recharge number, but energy
Metric density is relatively low, it is difficult to discharges for a long time.Lithium battery has higher energy density, but can not bear high power discharge, and fills
Discharge time is limited.Super capacitor is connected in parallel on lithium battery both ends by the method for super capacitor and lithium battery composite energy storage, this side
The advantages of method combines the two, can meet the high power requirements of electrical equipment, and and can ensures sufficiently long power-on time.Below
Face combines three kinds of working methods that Figure of description illustrates the stand-by power supply of electrical equipment：
The first working method：As shown in fig. 7, under normal operating conditions, such as, peak times of power consumption or have just enter into electricity consumption
Low ebb phase, super capacitor have laid in sufficient electric energy, now the participation without lithium battery, and only super capacitor passes through power conversion
Device is power supply for electrical equipment.
Second of working method：As shown in figure 8, during the low power consumption phase, CT coils take can be insufficient, and super capacitor electric energy is not
Foot, or the power when a certain moment demand of electrical equipment, the underpower that electric capacity provides, now just by lithium battery and super electricity
Hold together by power inverter to power supply for electrical equipment.
The third working method：It is lithium battery by super capacitor as shown in figure 9, when electric quantity of lithium battery is less than 80%
Charging.When electric quantity of lithium battery is more than 80%, supplemented without electric energy, so just prevent the frequent charge of lithium battery to put
Electricity, also can effectively prevent battery overcharge and over-discharge, extend life-span of battery.
It should be appreciated that the part that this specification does not elaborate belongs to prior art.
Although describing the embodiment of the present invention above in association with accompanying drawing, those of ordinary skill in the art should
Understand, these are merely illustrative of, and various deformation or modification can be made to these embodiments, without departing from the original of the present invention
Reason and essence.The scope of the present invention is only limited by the claims that follow.
Claims (7)
1. a kind of Contactless power transmission device, it is characterized in that, in addition to power transmitting element and power receiving unit；
Power transmitting element includes：Double CT taking energy coils, rectification and closed loop impedance-matching device, high intensity light source, LCL compensation
Device, transmitting coil；
Power receiving unit includes：Receiving coil, series compensation device, rectifying and voltage-stabilizing device, energy storage device；
Double CT taking energy coils are sequentially connected with rectification and closed loop impedance-matching device, high intensity light source, LCL compensation devices, LCL
Compensation device is connected with transmitting coil；
Series compensation device is connected with receiving coil, and series compensation device and regulator rectifier circuit, energy storage device are sequentially connected, storage
Can device connection load；
Transmitting coil transmits energy to receiving coil.
2. Contactless power transmission device as claimed in claim 1, it is characterized in that, receiving coil is respectively arranged in transmitting coil
Insulator top and bottom；Double CT taking energy coils are wound on transmission line of electricity；Rectification and closed loop impedance-matching device, high frequency electric source dress
Put and hung on LCL compensation devices on transmission line of electricity；Energy storage device is arranged on the inside of insulator suspension holdfast, series compensation dress
Put and rectifying and voltage-stabilizing device is arranged on the outside of the suspension holdfast of insulator.
3. Contactless power transmission device as claimed in claim 2, it is characterized in that, added in receiving coil and transmitting coil high
Magnetoconductivity material layer, its center are provided with clamping rings, and coil is fixed using three stability maintenance supports, every two stability maintenance supports it
Between angle be 120 degree, and stability maintenance support uses triangular supports；Receiving coil is installed on the insulator by clamping rings
End；Transmitting coil is arranged on insulator lower end, stability maintenance support and the transmission line of electricity being arranged on transmitting coil by clamping rings
It is connected.
4. Contactless power transmission device as claimed in claim 2, it is characterized in that, double CT taking energy coils are using double magnet ring CT knots
Structure, and have interval between two magnet ring CT.
5. Contactless power transmission device as claimed in claim 1, it is characterized in that, rectification and closed loop impedance-matching device use every
Release rectification circuit, and Hall voltage element and Hall current element are added after rectification circuit.
6. Contactless power transmission device as claimed in claim 1, it is characterized in that, energy storage device is connected in parallel on lithium using super capacitor
Battery both ends.
7. Contactless power transmission device as claimed in claim 1, it is characterized in that, high intensity light source uses full-bridge inverting side
Formula.
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| CN201710855662.0A CN107453490A (en) | 2017-09-20 | 2017-09-20 | A kind of Contactless power transmission device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667153A (en) * | 2018-02-02 | 2018-10-16 | 丁文萍 | One kind being used for active electronic transformer high-pressure side wireless power supply |
| CN108879983A (en) * | 2018-07-11 | 2018-11-23 | 西安电子科技大学 | The non-contact type apparatus for transmitting electric energy of electromagnetic force can be offset |
| CN109560587A (en) * | 2018-12-21 | 2019-04-02 | 北京理工大学 | A kind of wireless compensating charge optimization device of bilateral LCC |
| CN110098664A (en) * | 2018-01-31 | 2019-08-06 | 株洲中车时代电气股份有限公司 | The electronic switch for crossing split-phase for ground wirelessly takes energy circuit and passing phase insulator device |
| CN110350944A (en) * | 2018-09-28 | 2019-10-18 | 深圳市速腾聚创科技有限公司 | Wireless communication apparatus and wireless communication method |
| CN110497803A (en) * | 2019-08-05 | 2019-11-26 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of high reliability wireless energy supply system and method |
| CN110712537A (en) * | 2019-12-12 | 2020-01-21 | 江苏方天电力技术有限公司 | Unmanned aerial vehicle wireless charging system, unmanned aerial vehicle and wireless charging method thereof |
| CN111799893A (en) * | 2020-07-30 | 2020-10-20 | 苏州康开电气有限公司 | Energy-taking power supply and system for extra-high voltage line |
| CN111890960A (en) * | 2020-07-28 | 2020-11-06 | 国家电网有限公司 | Wireless charging system of distribution network inspection equipment |
| CN114094721A (en) * | 2021-11-24 | 2022-02-25 | 东南大学 | Disconnect-type fault indicator energy supply mechanism and fault indicator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184221A (en) * | 2014-09-02 | 2014-12-03 | 四川汇源光通信有限公司 | High-voltage transmission line ground wire energy getting device |
| CN104810931A (en) * | 2015-03-30 | 2015-07-29 | 国家电网公司 | Induction pick power device and method thereof for power tracking |
| JP2015177729A (en) * | 2014-03-18 | 2015-10-05 | 株式会社日立ハイテクファインシステムズ | Overhead wire inspection apparatus |
| CN106160024A (en) * | 2016-07-19 | 2016-11-23 | 武汉大学 | A kind of high-voltage power transmission device towards wireless energy transfer system |
| CN106602745A (en) * | 2017-01-18 | 2017-04-26 | 广东电网有限责任公司电力科学研究院 | Wireless power supply method and device for high-voltage on-line monitoring equipment |
| CN107069856A (en) * | 2017-03-29 | 2017-08-18 | 武汉大学 | Crusing robot intelligence continuation of the journey wireless charging system and its charging method |
-
2017
- 2017-09-20 CN CN201710855662.0A patent/CN107453490A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015177729A (en) * | 2014-03-18 | 2015-10-05 | 株式会社日立ハイテクファインシステムズ | Overhead wire inspection apparatus |
| CN104184221A (en) * | 2014-09-02 | 2014-12-03 | 四川汇源光通信有限公司 | High-voltage transmission line ground wire energy getting device |
| CN104810931A (en) * | 2015-03-30 | 2015-07-29 | 国家电网公司 | Induction pick power device and method thereof for power tracking |
| CN106160024A (en) * | 2016-07-19 | 2016-11-23 | 武汉大学 | A kind of high-voltage power transmission device towards wireless energy transfer system |
| CN106602745A (en) * | 2017-01-18 | 2017-04-26 | 广东电网有限责任公司电力科学研究院 | Wireless power supply method and device for high-voltage on-line monitoring equipment |
| CN107069856A (en) * | 2017-03-29 | 2017-08-18 | 武汉大学 | Crusing robot intelligence continuation of the journey wireless charging system and its charging method |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098664A (en) * | 2018-01-31 | 2019-08-06 | 株洲中车时代电气股份有限公司 | The electronic switch for crossing split-phase for ground wirelessly takes energy circuit and passing phase insulator device |
| CN108667153A (en) * | 2018-02-02 | 2018-10-16 | 丁文萍 | One kind being used for active electronic transformer high-pressure side wireless power supply |
| CN108879983A (en) * | 2018-07-11 | 2018-11-23 | 西安电子科技大学 | The non-contact type apparatus for transmitting electric energy of electromagnetic force can be offset |
| CN110350944A (en) * | 2018-09-28 | 2019-10-18 | 深圳市速腾聚创科技有限公司 | Wireless communication apparatus and wireless communication method |
| CN110350944B (en) * | 2018-09-28 | 2023-09-15 | 深圳市速腾聚创科技有限公司 | Wireless communication device and wireless communication method |
| CN109560587A (en) * | 2018-12-21 | 2019-04-02 | 北京理工大学 | A kind of wireless compensating charge optimization device of bilateral LCC |
| CN110497803A (en) * | 2019-08-05 | 2019-11-26 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of high reliability wireless energy supply system and method |
| CN110712537A (en) * | 2019-12-12 | 2020-01-21 | 江苏方天电力技术有限公司 | Unmanned aerial vehicle wireless charging system, unmanned aerial vehicle and wireless charging method thereof |
| CN111890960A (en) * | 2020-07-28 | 2020-11-06 | 国家电网有限公司 | Wireless charging system of distribution network inspection equipment |
| CN111890960B (en) * | 2020-07-28 | 2022-10-28 | 国家电网有限公司 | Wireless charging system of distribution network inspection equipment |
| CN111799893A (en) * | 2020-07-30 | 2020-10-20 | 苏州康开电气有限公司 | Energy-taking power supply and system for extra-high voltage line |
| CN114094721A (en) * | 2021-11-24 | 2022-02-25 | 东南大学 | Disconnect-type fault indicator energy supply mechanism and fault indicator |
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Application publication date: 20171208 |