CN105575235B - A kind of magnetic coupling wireless energy transfer emulation experiment method and device - Google Patents
A kind of magnetic coupling wireless energy transfer emulation experiment method and device Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of magnetic coupling wireless energy transfer emulation experiment method and device, step is：According to coil former loop equation, two-port network scattering parameter is obtained；Two-port network scattering parameter maximum value is calculated, most strong theoretical Coupling point is obtained；According to most strong theoretical Coupling point, coil distance is adjusted；Signal occurs for the energy transmission that signal generator exports different wave；Judge that different wave energy transmission occurs whether signal reaches most strong theoretical Coupling point.The most close coupling point for occurring to search out under signal by the energy transmission to different wave is verified, and the magnetic coupling wireless energy transfer characteristic of different coil formers under different wave is probed into.
Description
Technical field
The present invention relates to Experiments of Electricity technical fields, more particularly to a kind of magnetic coupling wireless energy transfer emulation experiment side
Method and device.
Background technology
Wireless energy transmission technology generally comprises electromagnetic wave wireless energy transmission technology, inductive coupling type wireless energy transfer
Technology and magnetic coupling resonance formula wireless energy transmission technology.Wherein, electromagnetic wave wireless energy transmission technology, inductive coupling type are wireless
The limitation of energy transmission technology transmission range and power is bigger.Magnetic coupling resonance formula wireless energy transmission technology using magnetic field as
Transmission medium establishes the transmission channels between transmitting and receiving device, to effectively transmit energy by resonance.Utilize magnetic coupling
It closes resonant wireless energy transfer skill and carries out energy transmission, can not only improve the power and efficiency of transmission, and theoretically may be used
The distance of transmission is increased to 1 to 2 meters and will not be influenced by spatial obstacle object.
Magnetic coupling wireless energy transfer emulation experiment in the prior art, using coupled mode theory and resonance circuit characteristic,
Intrinsic propesties and rule of the magnet coupled resonant type wireless power in radiating near field resonance coupling are analyzed, in conjunction with theory analysis knot
Fruit establishes analysis model using electromagnetic simulation software simulation calculation function, resonant frequency and coil has been obtained by simulation calculation
The relation curve of material and quality factor.
However, existing magnetic coupling wireless energy transfer emulation experiment method, it can not be according to theoretical analysis result, to difference
The most close coupling point that the energy transmission of waveform occurs to search out under signal is verified, to probe into different coils under different wave
The magnetic coupling wireless energy transfer characteristic of model.
Invention content
A kind of magnetic coupling wireless energy transfer emulation experiment method and device is provided in the embodiment of the present invention, it is existing to solve
There is magnetic coupling wireless energy transfer emulation experiment method in technology that can not be passed to the energy of different wave according to theoretical analysis result
The problem of most close coupling point searched out under defeated generation signal is verified.
In order to solve the above-mentioned technical problem, the embodiment of the invention discloses following technical solutions：
A kind of magnetic coupling wireless energy transfer emulation experiment method, includes the following steps：
According to coil former loop equation, two-port network scattering parameter is obtained；
Two-port network scattering parameter maximum value is calculated, most strong theoretical Coupling point is obtained；
According to most strong theoretical Coupling point, coil distance is adjusted；
Signal occurs for the energy transmission that signal generator exports different wave；
Judge that different wave energy transmission occurs whether signal reaches most strong theoretical Coupling point；
If signal, which occurs, for different wave energy transmission reaches most strong theoretical Coupling point, most strong theoretical Coupling point and experiment
As a result it is consistent；
If different wave energy transmission occurs signal and does not reach most strong theoretical Coupling point, most strong theoretical Coupling point with
Experimental result is not inconsistent.
Preferably, equation is solved, two-port network scattering parameter method is obtained and includes the following steps：
Obtain coil impedance and mutual inductance；
Coil former loop equation is sought according to coil impedance and mutual inductance to solve equation, and obtains coil current；
According to coil current, input voltage and output voltage are calculated；
According to input voltage and output voltage, two-port network scattering coefficient is obtained.
Preferably, two-port network scattering parameter maximum value is calculated, it includes following step to obtain most strong theoretical coupling point methods
Suddenly：Obtain coil coefficient of coup minimum value；Obtain two-port network scattering parameter maximum value.
Preferably, judge that the method whether different wave energy transmission generation signal reaches resonance point is：
Oscilloscope display loads both ends output voltage；
Judge that load both ends output voltage occurs whether signal voltage couples with energy transmission.
Preferably, it is square wave, sine wave or three that signal waveform, which occurs, for the energy transmission of signal generator output different wave
Angle wave.
A kind of magnetic coupling wireless energy transfer nature imitation experiment device, for verifying magnetic coupling wireless energy transfer emulation experiment
Method, including signal generator, load, oscillograph, driving coil, transmit coil, intensifier coil, receiving coil and load line
Circle, wherein：
Signal generator is connected with driving coil, and driving coil is connected with transmit coil, and load is connected with loading coil, bears
It carries coil with receiving coil to be connected, between transmit coil and receiving coil, transmit coil, connects intensifier coil intensifier coil
Take-up circle is coaxial；Oscillograph includes four channels, is connected respectively with signal generator and load both ends.
Preferably, magnetic coupling wireless energy transfer nature imitation experiment device further includes internal resistance, the first compensating electric capacity, the second compensation
Capacitance and bulb, wherein internal resistance are connected with signal generator and the first compensating electric capacity, the first compensating electric capacity and driving coil phase
Even, the second compensating electric capacity both ends are connected with loading coil and load respectively, and bulb is in parallel with load.
Preferably, the capacitance range of the first compensating electric capacity and the second compensating electric capacity is 15pF-1000pF.
Preferably, transmit coil, intensifier coil and receiving coil relative distance are adjustable, transmit coil and receiving coil distance
Ranging from 20cm-200cm.
By above technical scheme as it can be seen that magnetic coupling wireless energy transfer emulation experiment method provided in an embodiment of the present invention and
Device solves equation, obtains two-port network scattering parameter, calculate two-port network and dissipate by listing coil former loop equation
Parameter maximum value is penetrated, most strong theoretical Coupling point is obtained, according to most strong theoretical Coupling point, adjusts coil distance, signal generator is defeated
The energy transmission for going out different wave occurs signal and judges that the side whether signal reaches resonance point occurs for different wave energy transmission
Method, the most close coupling point for occurring to search out under signal to the energy transmission of different wave is verified, to probe into different wave
The magnetic coupling wireless energy transfer characteristic of lower difference coil former.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of flow signal of magnetic coupling wireless energy transfer emulation experiment method provided in an embodiment of the present invention
Figure；
Fig. 2 is the structural representation of the first magnetic coupling wireless energy transfer nature imitation experiment device provided in an embodiment of the present invention
Figure；
Fig. 3 is the structural representation of second of magnetic coupling wireless energy transfer nature imitation experiment device provided in an embodiment of the present invention
Figure.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution in the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work, should all belong to protection of the present invention
Range.
Fig. 1 is a kind of flow signal of magnetic coupling wireless energy transfer emulation experiment method provided in an embodiment of the present invention
Figure, as seen from Figure 1, magnetic coupling wireless energy transfer emulation experiment method includes the following steps：
S101：According to wire loop equation, two-port network scattering parameter is obtained；
S102：Two-port network scattering parameter maximum value is calculated, most strong theoretical Coupling point is obtained；
S103：According to most strong theoretical Coupling point, coil distance is adjusted；
S104：Signal occurs for the energy transmission that signal generator exports different wave；
S105：Judge that different wave energy transmission occurs whether signal reaches most close coupling point；
S106：If signal, which occurs, for different wave energy transmission reaches most strong theoretical Coupling point, most strong theoretical Coupling point
It is consistent with experimental result；
S107：If signal, which occurs, for different wave energy transmission does not reach most strong theoretical Coupling point, most strong theoretical coupling
Chalaza is not inconsistent with experimental result.
Wherein, equation is solved, two-port network scattering parameter method is obtained and includes the following steps：
It calculates and obtains coil impedance and mutual inductance；It asks coil former loop equation to solve equation, obtains coil current；Root
According to coil current, input voltage and output voltage is calculated；According to input voltage and output voltage, obtains two-port network and dissipate
Penetrate coefficient.
Two-port network scattering parameter maximum value is calculated, most strong theoretical coupling point methods is obtained and includes the following steps：If each
Coil q, the coefficient of coup are equal；If coil intrinsic frequency is with when concussion frequency phase, each coil coefficient of coup is most
It is small；Seek coil coefficient of coup minimum value；Obtain two-port network scattering parameter maximum value.
The present invention using two coils, three-winding and four coil formers as embodiment, theoretical analysis and calculation magnet coupled resonant type without
The Coupling point of heat input transmission mode.
Two coil formers：
Model mainly consists of two parts：Transmitting terminal and receiving terminal.Transmitting terminal is made of signal generating source and transmit coil,
The two is directly connected to；Receiving terminal is made of receiving coil and load, and the two is directly connected to.The course of work is：Transmit coil receives
The signal that signal generator generates generates medium-high frequency magnetic field, and magnetic coupling resonance occurs with receiving coil, and energy is by transmit coil
It has been transmitted to receiving coil.
List two wire loop equations：
Wherein, I1 is transmit coil electric current, and I2 is receiving coil electric current, and R1 is transmit coil resistance (containing the internal resistance of source),
R2 is receiving coil resistance, and ω is coupling frequency, and L1 is transmit coil inductance, and L2 is receiving coil inductance, and C1 is transmit coil
Capacitance, C2 are receiving coil capacitance, and M12 is mutual inductance, and Vs is input voltage；
If the impedance of each coil is：
Wherein, Z1 is transmit coil impedance, and Z2 is receiving coil impedance；
Mutual inductance M12 is expressed as：
K12 is transmit coil and the receiving coil coefficient of coup.
Solve two coil equations
Output end voltage V0 is
Wherein, K12 is transmit coil and the receiving coil coefficient of coup
System gain is：
Wherein, S21 is the scattering parameter of two-port network；
If R=R1=R2, the scattering parameter S21 of two-port network can be expressed as：
By finding maximum S21, so that it may to find strongest Coupling point.
According to coupled resonance theory, under coupling frequency, there is following relationship
If in two coil formers, R=R1=R2, K=K12, L=L1=L2, C=C1=C2So scattering of two-port network
Parameter S21 can be expressed as
Quality factor q value can be expressed as：
The scattering parameter S21 of two-port network can be expressed as
In order to obtain S21K when extreme value obtains above formula derivation
It solves
When, the efficiency highest of transmission, two coil formers reach Best Coupling point.
Three-winding model：
The three-winding model of magnetic coupling wireless energy transfer is mainly made of three parts：Transmit coil, intensifier coil, reception
Coil.The course of work：Transmit coil receives the signal of signal generator generation, generates medium-high frequency magnetic field, and send out with intensifier coil
With receiving coil magnetic coupling resonance occurs for magnetisation coupled resonance, subsequent intensifier coil again.Energy is just transmitted to increasing from transmit coil
Strong coil, and it is transmitted to receiving coil from intensifier coil.Three-winding loop equation is listed according to Circuit theory：
Wherein, I1 is transmit coil electric current, and I2 is intensifier coil electric current, and I3 is receiving coil electric current, and R1 is transmit coil
Resistance (contains the internal resistance of source), and R2 is intensifier coil resistance, and R3 is receiving coil resistance, and L1 is transmit coil inductance, and L2 is enhancing
Coil inductance, L3 are receiving coil inductance, and C1 is transmit coil capacitance, and C2 is intensifier coil capacitance, and C3 is receiving coil capacitance,
M12 is transmit coil and intensifier coil mutual inductance, and M23 is receiving coil and intensifier coil mutual inductance, and Vs is input voltage；
If the impedance of each coil is：
Wherein, Z1 is transmit coil impedance, and Z2 is intensifier coil impedance, and Z2 is receiving coil impedance；
Mutual inductance is that M12 and M23 is expressed as：
Wherein, K12 is transmit coil and the intensifier coil coefficient of coup, wherein K12 is that intensifier coil is coupled with receiving coil
Coefficient
Solve three-winding equation
Output end voltage V0 is
The gain of system is：
Wherein, S21 is the scattering parameter of two-port network；
If R=R1=R3, the scattering parameter S21 of two-port network can be expressed as：
By finding maximum S21, so that it may to find strongest Coupling point.
Four coil formers：
Four coil formers of magnetic coupling wireless energy transfer consist of two parts：Transmitting terminal and receiving terminal.Transmitting terminal is by driving
Moving winding and transmit coil composition, receiving terminal are made of receiving coil and loading coil.In the course of work：Driving coil receives to come
The signal of automatic signal generator generates medium-high frequency magnetic field as driving source, and transmit coil resonance under extrinsic motivated, energy is by driving
Moving winding is coupled to transmit coil, and transmit coil generates magnetic coupling resonance with receiving coil and carries out energy transmission, and receiving coil is again
It is coupled with loading coil and realizes energy transmission, maximal end point bright light bubble.Between driving coil and transmit coil and receiving coil with it is negative
All it is closely to couple between load coil, is to couple at a distance between transmit coil and receiving coil.According to Circuit theory, list
Four wire loop equations：
Wherein, I1 is driving coil electric current, and I2 is transmit coil electric current, and I3 is receiving coil electric current, and I4 is loading coil
Electric current, R1 are driving coil resistance, and R2 is transmit coil resistance, and R3 is receiving coil resistance, and R4 is loading coil resistance, and L1 is
Driving coil inductance, L2 are transmit coil inductance, and L3 is receiving coil inductance, and L4 is loading coil inductance, and C1 is driving coil
Capacitance, C2 are transmit coil capacitance, and C3 is receiving coil capacitance, and C4 is loading coil capacitance, and M12 is driving coil and sends line
Mutual inductance is enclosed, M23 is transmit coil and receiving coil mutual inductance, and M34 is receiving coil and loading coil mutual inductance, Vs
For input voltage；
If the impedance of each coil is
Z1 is driving coil impedance, and Z2 is transmit coil impedance, and Z3 is receiving coil impedance, and Z4 is loading coil impedance；
Mutual inductance M12, M23 and M34 are expressed as：
Wherein, K12 is driving coil and the transmit coil coefficient of coup, and K23 is transmit coil and the receiving coil coefficient of coup,
K34 is receiving coil and the loading coil coefficient of coup；
I is obtained by solving three-winding equation4, the voltage in load is VL=I4R4, finally obtain input VS and output VL
Between relationship：
The gain of system is：
Wherein, S21 is the scattering parameter of two-port network, by finding maximum S21, so that it may to find strongest coupling
Point.
For each coil, their quality factor q value and intrinsic frequency can be defined as：
Assuming that driving coil and loading coil quality factor are identical as coefficient of coup difference, transmit coil and receiving coil product
Prime factor is identical as coefficient of coup difference, if：
Qcoil=Q2=Q3；Qloop=Q1=Q4；klc=k12=k34；kcc=k23
The intrinsic frequency of transmit coil and receiving coil is ω 0.When frequency of oscillation is equal to intrinsic frequency, Ke Yishi
Now farthest Coupling point (kcc is minimum), i.e.,
It to above formula kcc derivations, and solves equation, minimum kcc can be obtained
The value of the scattering parameter S21 of two-port network can be expressed as：
In the present embodiment, judge that the method whether different wave energy transmission generation signal reaches resonance point is：
Oscilloscope display loads both ends output voltage；
Judge that load both ends output voltage occurs whether signal voltage couples with energy transmission.
In the present embodiment, signal waveform occurs for the energy transmission that signal generator exports different wave for square wave, sine wave
Or triangular wave.There are mainly three types of common AC signal waveforms：Square wave, sine wave and triangular wave.The embodiment of the present invention chooses this
Generation signal of three kinds of typical waveforms as wireless energy transfer primary circuit, signal frequency are each provided on resonance point, are
2.174MHz.Wireless energy transfer process nature is a kind of conversion of energy, and the energy since signal occurs will have a direct impact on
The energy of transmitting terminal exports, and is simply analyzed three kinds of typical wave type energies, and power is a kind of table of signal energy
Existing form, with the energy of power measurement signal, average power signal P is：
Wherein W is the energy of signal, and T is the signal a certain period.
Its resistance value of signal generator is fixed, and the measurement of power can be determined by the U of signal, choose the electricity of signal
Valid value is pressed with to be analyzed to replace the energy spectrometer to signal occurs.
Fig. 2 is a kind of structural representation of magnetic coupling wireless energy transfer nature imitation experiment device provided in an embodiment of the present invention
Figure, magnetic coupling wireless energy transfer nature imitation experiment device are used for magnetic coupling wireless energy transfer emulation experiment method.Device includes
Signal generator, load, oscillograph, driving coil, transmit coil, intensifier coil, receiving coil and loading coil, wherein：Letter
Number generator is connected with driving coil, and driving coil is connected with transmit coil, and load is connected with loading coil, loading coil with connect
Take-up circle is connected, and for intensifier coil between transmit coil and receiving coil, transmit coil, intensifier coil, receiving coil are coaxial；
Oscillograph includes four channels, is connected respectively with signal generator and load both ends.
It is imitative can to carry out two coils, three-winding and four coils in magnetic coupling wireless energy transfer experimentation by the present invention
True experiment.Intensifier coil, driving coil and loading coil are taken out when two coils are tested；Driving line is taken out when three-winding is tested
Circle and loading coil；Intensifier coil is taken out when four coils are tested.
Fig. 3 is the structural representation of the third magnetic coupling wireless energy transfer nature imitation experiment device provided in an embodiment of the present invention
Figure, as seen from the figure, magnetic coupling wireless energy transfer nature imitation experiment device further include internal resistance, the first compensating electric capacity, the second compensation electricity
To hold and bulb, wherein internal resistance are connected with signal generator and the first compensating electric capacity, the first compensating electric capacity is connected with driving coil,
Second compensating electric capacity both ends are connected with loading coil and load respectively, and bulb is in parallel with load.
The brands such as U.S.'s Agilent, U.S.'s fluke, German moral figure, Germany Sai Duolisi may be selected in signal generator AC,
It is preferred that 5064 type signal generators of Tabor companies wonder wave, exportable various waveforms.
The capacitance range of first compensating electric capacity and the second compensating electric capacity is 15pF-1000pF.
Transmit coil, intensifier coil and receiving coil relative distance are adjustable, and transmit coil is with receiving coil distance range
20cm-200cm.Transmit coil, booster, receiving coil three are coaxial, and resonant frequency having the same, transmit coil,
Booster is interacted with receiving coil three by magnetic coupling, and the distance between transmit coil and receiving coil are energy
Transmission range.
By taking three-winding model as an example, the magnetic coupling wireless energy transfer nature imitation experiment device course of work is：Adjust power supply and
The driving signal frequency of driving circuit encourages transmit coil resonance, generates alternating magnetic field.Transmit coil magnetic fields in booster,
Cause booster resonance, since booster is an independent LC resonance circuit, there are very high quality factor, can generate more
For powerful magnetic field so that the distance between booster and receiving coil always greater than between booster and transmit coil away from
From.Booster magnetic fields make receiving coil generate resonance, since three's resonant frequency is identical, to generate in receiving coil
Resonance, the energy transmission of power supply to receiving coil lights light bulb.
First, power supply drives transmit coil resonance by high-frequency inversion, and power supply energy is converted into resonance transmit coil
Electric field energy and magnetic field energy, electric field energy is stored in capacitance, and magnetic field energy is stored in coil inductance, they are equal to each other,
And it is in periodic swinging.
Secondly, the magnetic field energy that transmit coil generates, electric field energy in booster, booster are converted by magnetic coupling
Resonance, electric field energy and magnetic field energy exchange each other between booster capacitance and inductance.Finally, the magnetic field energy of booster is logical
Cross the electric field energy that magnetic coupling is converted into receiving coil, receiving coil resonance, electric field energy receiving coil capacitance and
It is exchanged with each other between inductance, electric field energy supplies bulb consumption, since three's resonant frequency is identical, resonance is generated, by energy source
Source is constantly from power delivery to light bulb.To sum up, energy is transmitted in systems by resonance and magnetic coupling, in entire energy
In the transmission process of amount, the coupling efficiency between magnetic field determines the efficiency of transmission of energy, while also determining the transmission of energy
Distance.
By the description of above embodiment of the method, it is apparent to those skilled in the art that the present invention can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to by hardware, but in many cases the former
It is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially makes tribute to the prior art in other words
The part offered can be expressed in the form of software products, which is stored in a storage medium, packet
Some instructions are included to use so that a computer equipment (can be personal computer, server or the network equipment etc.) executes
All or part of the steps of the method according to each embodiment of the present invention.And storage medium above-mentioned includes：Read-only memory
(ROM), the various media that can store program code such as random access memory (RAM), magnetic disc or CD.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for device or
For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method
The part of embodiment illustrates.Apparatus and system embodiment described above is only schematical, wherein the conduct
The unit that separating component illustrates may or may not be physically separated, the component shown as unit can be or
Person may not be physical unit, you can be located at a place, or may be distributed over multiple network units.It can root
According to actual need that some or all of module therein is selected to achieve the purpose of the solution of this embodiment.Ordinary skill
Personnel are without creative efforts, you can to understand and implement.
It is understood that the present invention can be used in numerous general or special purpose computing system environments or configuration.Such as：It is a
People's computer, server computer, handheld device or portable device, multicomputer system, are based on microprocessor at laptop device
The system of device, set top box, programmable consumer-elcetronics devices, network PC, minicomputer, mainframe computer including to take up an official post
The distributed computing environment etc. of what system or equipment.
The present invention can describe in the general context of computer-executable instructions executed by a computer, such as program
Module.Usually, program module includes routines performing specific tasks or implementing specific abstract data types, program, object, group
Part, data structure etc..The present invention can also be put into practice in a distributed computing environment, in these distributed computing environments, by
Task is executed by the connected remote processing devices of communication network.In a distributed computing environment, program module can be with
In the local and remote computer storage media including storage device.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above is only the specific implementation mode of the present invention, is made skilled artisans appreciate that or realizing this hair
It is bright.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
The above is only the specific implementation mode of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of magnetic coupling wireless energy transfer emulation experiment method, which is characterized in that the magnetic coupling wireless energy transfer is imitative
True experiment method includes the following steps：
According to coil former loop equation, two-port network scattering parameter is obtained；
Two-port network scattering parameter maximum value is calculated, most strong theoretical Coupling point is obtained；
According to most strong theoretical Coupling point, coil distance is adjusted；
Signal occurs for the energy transmission that signal generator exports different wave；
Judge that different wave energy transmission occurs whether signal reaches most strong theoretical Coupling point；
If signal, which occurs, for different wave energy transmission reaches most strong theoretical Coupling point, most strong theoretical Coupling point and experimental result
It is consistent；
If signal, which occurs, for different wave energy transmission does not reach most strong theoretical Coupling point, most strong theoretical Coupling point and experiment
As a result it is not inconsistent.
2. magnetic coupling wireless energy transfer emulation experiment method according to claim 1, which is characterized in that the calculating is double
Port network scattering parameter max methods include the following steps：
Obtain coil impedance and mutual inductance；
Coil former loop equation is sought according to the coil impedance and mutual inductance to solve equation, and obtains coil current；
According to the coil current, input voltage and output voltage are calculated；
According to the input voltage and the output voltage, two-port network scattering coefficient is obtained.
3. magnetic coupling wireless energy transfer emulation experiment method according to claim 1 or 2, which is characterized in that the meter
Two-port network scattering parameter maximum value is calculated, most strong theoretical coupling point methods is obtained and includes the following steps：Obtain coil coupled systemes
Number minimum value；Obtain two-port network scattering parameter maximum value.
4. magnetic coupling wireless energy transfer emulation experiment method according to claim 1, which is characterized in that the judgement is not
Same waveform energy transmission occurs signal and whether reaches the method for most strong theoretical Coupling point：
Oscilloscope display loads both ends output voltage；
Judge that load both ends output voltage occurs whether signal voltage couples with energy transmission.
5. magnetic coupling wireless energy transfer emulation experiment method according to claim 1, which is characterized in that the signal hair
It is square wave, sine wave or triangular wave that signal waveform, which occurs, for the energy transmission of raw device output different wave.
6. a kind of magnetic coupling wireless energy transfer nature imitation experiment device, for verifying magnetic coupling wireless energy transfer emulation experiment side
Method, which is characterized in that including signal generator, load, oscillograph, driving coil, transmit coil, intensifier coil, receiving coil
And loading coil, wherein：
The signal generator is connected with the driving coil, and the driving coil is connected with the transmit coil, the load
It is connected with the loading coil, the loading coil is connected with the receiving coil, and the intensifier coil is located at the transmission line
Between circle and the receiving coil, the transmit coil, the intensifier coil, the receiving coil are coaxial；The oscillograph packet
Four channels are included, are connected respectively with the signal generator and the load both ends.
7. magnetic coupling wireless energy transfer nature imitation experiment device according to claim 6, which is characterized in that the magnetic coupling
Wireless energy transfer nature imitation experiment device further includes internal resistance, the first compensating electric capacity, the second compensating electric capacity and bulb, wherein described
Internal resistance is connected with the signal generator and first compensating electric capacity, first compensating electric capacity and the driving coil phase
Even, second compensating electric capacity both ends are connected with the loading coil and the load respectively, the bulb and the load
It is in parallel.
8. magnetic coupling wireless energy transfer nature imitation experiment device according to claim 7, which is characterized in that described first mends
The capacitance range for repaying capacitance and second compensating electric capacity is 15pF-1000pF.
9. magnetic coupling wireless energy transfer nature imitation experiment device according to claim 6, which is characterized in that the transmission line
Circle, the intensifier coil and the receiving coil relative distance are adjustable, the transmit coil and the receiving coil distance range
For 20cm-200cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090789.3A CN105575235B (en) | 2016-02-18 | 2016-02-18 | A kind of magnetic coupling wireless energy transfer emulation experiment method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090789.3A CN105575235B (en) | 2016-02-18 | 2016-02-18 | A kind of magnetic coupling wireless energy transfer emulation experiment method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105575235A CN105575235A (en) | 2016-05-11 |
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| CN107015175B (en) * | 2017-02-23 | 2020-01-14 | 电子科技大学 | Circuit and method for detecting coupling coefficient between magnetic coupling inductance coils |
| CN106710399A (en) * | 2017-03-28 | 2017-05-24 | 渤海大学 | Magnetic coupling wireless energy transmission simulation experiment method |
| US10734847B2 (en) * | 2017-08-23 | 2020-08-04 | Apple Inc. | Wireless power system with coupling-coefficient-based coil selection |
| CN110348106A (en) * | 2019-07-08 | 2019-10-18 | 江苏科技大学 | A kind of wireless power transmission EFFICIENCY PREDICTION method based on Gaussian process |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593964A (en) * | 2012-03-20 | 2012-07-18 | 中国人民解放军国防科学技术大学 | Direction-adaptive magnetic coupling resonant wireless power supply method and device |
| CN103105526A (en) * | 2013-01-31 | 2013-05-15 | 广西电网公司电力科学研究院 | Method of verifying affection on resonant induction wireless energy transmission efficiency by signal waveform |
| CN103400682A (en) * | 2013-08-14 | 2013-11-20 | 广西电网公司电力科学研究院 | Magnetic core structure and electromagnetic coupling device based on magnetic core structure |
| CN203706838U (en) * | 2014-01-24 | 2014-07-09 | 广西电网公司电力科学研究院 | Electromagnetic coupling coil used for wireless power transmission |
| CN204102405U (en) * | 2014-08-28 | 2015-01-14 | 哈尔滨工业大学 | A kind of experiment device for teaching of magnet coupled resonant type wireless electric power transfer |
| CN204632212U (en) * | 2015-05-28 | 2015-09-09 | 西安科技大学 | A kind of magnet coupled resonant type wireless delivery of electrical energy teaching training apparatus |
| CN103134998B (en) * | 2013-01-31 | 2015-09-30 | 广西电网公司电力科学研究院 | Based on the wireless energy transfer coil number of turn system of selection of resonance coupling |
| CN104995849A (en) * | 2013-01-11 | 2015-10-21 | 皇家飞利浦有限公司 | Wireless inductive power transfer |
| CN205487042U (en) * | 2016-02-18 | 2016-08-17 | 云南电网有限责任公司电力科学研究院 | Magnetic coupling wireless energy transmission simulation experiment device |
-
2016
- 2016-02-18 CN CN201610090789.3A patent/CN105575235B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593964A (en) * | 2012-03-20 | 2012-07-18 | 中国人民解放军国防科学技术大学 | Direction-adaptive magnetic coupling resonant wireless power supply method and device |
| CN104995849A (en) * | 2013-01-11 | 2015-10-21 | 皇家飞利浦有限公司 | Wireless inductive power transfer |
| CN103105526A (en) * | 2013-01-31 | 2013-05-15 | 广西电网公司电力科学研究院 | Method of verifying affection on resonant induction wireless energy transmission efficiency by signal waveform |
| CN103134998B (en) * | 2013-01-31 | 2015-09-30 | 广西电网公司电力科学研究院 | Based on the wireless energy transfer coil number of turn system of selection of resonance coupling |
| CN103400682A (en) * | 2013-08-14 | 2013-11-20 | 广西电网公司电力科学研究院 | Magnetic core structure and electromagnetic coupling device based on magnetic core structure |
| CN203706838U (en) * | 2014-01-24 | 2014-07-09 | 广西电网公司电力科学研究院 | Electromagnetic coupling coil used for wireless power transmission |
| CN204102405U (en) * | 2014-08-28 | 2015-01-14 | 哈尔滨工业大学 | A kind of experiment device for teaching of magnet coupled resonant type wireless electric power transfer |
| CN204632212U (en) * | 2015-05-28 | 2015-09-09 | 西安科技大学 | A kind of magnet coupled resonant type wireless delivery of electrical energy teaching training apparatus |
| CN205487042U (en) * | 2016-02-18 | 2016-08-17 | 云南电网有限责任公司电力科学研究院 | Magnetic coupling wireless energy transmission simulation experiment device |
Non-Patent Citations (1)
| Title |
|---|
| 磁耦合谐振式无线能量传输功率特性研究;任立涛;《中国优秀硕士学位论文全文数据库(工程科技Ⅱ辑)》;20111215;正文第1页第1段至第39页第2段 * |
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