CN106160250A - A kind of wireless power transmission systems - Google Patents
A kind of wireless power transmission systems Download PDFInfo
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- CN106160250A CN106160250A CN201510176479.9A CN201510176479A CN106160250A CN 106160250 A CN106160250 A CN 106160250A CN 201510176479 A CN201510176479 A CN 201510176479A CN 106160250 A CN106160250 A CN 106160250A
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Abstract
The open a kind of wireless power transmission systems of the present invention, including wireless power transmission transmitting terminal and wireless power transmission receiving terminal；Wireless power transmission transmitting terminal includes: input, the first inductance, the second inductance and the first electric capacity；First inductance two ends connect input, and second inductance one end connects first electric capacity the first pole plate, the first inductance other end ground connection；The input of wireless power transmission transmitting terminal receives very low frequency electric current, the first inductance and the second inductance mutual inductance, the second inductance and the first electric capacity and produces resonance, by earth terminal by incoming for electric current the earth；Wireless power transmission receiving terminal includes: outfan, the 3rd inductance, the 4th inductance and the second electric capacity；4th inductance two ends connect outfan, and the 3rd inductance one end connects second electric capacity the first pole plate, the 3rd inductance other end ground connection；The earth terminal of the 3rd inductance receives the electric current of the earth, is shaken by the 3rd inductance the 7th inductance and the second capacitance tuning, the 3rd inductance and the 4th inductance mutual inductance, exports very low frequency electric current to outfan.The present invention effectively reduces Transmission Cost.
Description
Technical field
The present invention relates to a kind of wireless power transmission systems, belong to technical field of electric power.
Background technology
Power system is that (primary energy of nature is mainly included pot by generation power device
Stove, steam turbine, electromotor and power plant's accessory production system etc.) change into electric energy, then through defeated,
Transformer substation system and distribution system supply power to each load center, by various equipment reconverts
Become the energy of the multi-forms such as power, heat, light, for regional economy and people's lives service.
Power system is mainly by several part groups such as generating, power transformation, transmission of electricity, distribution, electricity consumptions
Become.Every part in power system all contains many technology to be modified.Power transmission section is allocated as
For the mid portion of power system, be also a part and parcel of power system, and it with
The various aspects of power system all contact closely, are that energy produces, transmission, the important ring of management
Joint.Power plant and power load center are generally all located at different regions.At waterpower, coal etc. one
Power plant is set up in the place that secondary energy resources condition is suitable, can be delivered the power to by transmission of electricity
Away from the load center in power plant, the development and utilization of electric energy is made to surmount the restriction of region.
At present, according to the character of conveying electric current, transmission of electricity is divided into ac transmission and direct current transportation.19
The eighties in century the most successfully achieves direct current transportation.But owing to the voltage of direct current transportation is being worked as
Time technical conditions under be difficult to continue improve so that ability to transmit electricity and benefit are restricted.19th century
End, direct current transportation is progressively replaced by ac transmission.The success of ac transmission, has welcome 20
The New Times of century electrification society.Since the sixties in 20th century, direct current transportation has again new development,
Match with ac transmission, the power system of composition alternating current-direct current mixing.
Traditional electric energy transmission mainly transmits by wire or conductor, generating, transmission of electricity,
In the link of these complexity of electricity consumption, substantial amounts of wire, shaft tower, converting equipment and the change of current to be used
Equipment, regular maintenance to electrical network are also too busy to get away.Wireless power transmission is as a kind of special defeated
Electrically, utilizing wireless radio transmission electrical energy, all too many levels during power transmission save
Slightly, electric energy is made to become the most economical.Wireless power transmission relative to traditional transmission of electricity in specific occasion
Having its prominent advantage, development prospect is the finest.But existing wireless power transmission mode is only real
Show short distance, low-energy transmission of electricity (wireless charging etc.), but transmitted electricity at distance high-energy
Not yet realize, have many difficult points to need to overcome.
Summary of the invention
The technical problem to be solved in the present invention is: how to realize remote-wireless transmission of electricity.
For realizing above-mentioned goal of the invention, the invention provides a kind of wireless power transmission systems, including
Wireless power transmission transmitting terminal and wireless power transmission receiving terminal；Described wireless power transmission transmitting terminal by the earth to
Described wireless power transmission receiving terminal transmission electric current, wherein,
Wireless power transmission transmitting terminal includes: input, the first inductance, the second inductance and the first electric capacity；
Described first inductance two ends connect described input, and described second inductance one end connects first
Electric capacity the first pole plate, described first inductance other end ground connection；
The input of described wireless power transmission transmitting terminal receives very low frequency electric current, the first inductance and second
Inductance mutual inductance, the second inductance and the first electric capacity produces resonance, by earth terminal by incoming for electric current greatly
Ground；
Wireless power transmission receiving terminal includes: outfan, the 3rd inductance, the 4th inductance and the second electric capacity；
Described 4th inductance two ends connect described outfan, and described 3rd inductance one end connects second
Electric capacity the first pole plate, described 3rd inductance other end ground connection；
The earth terminal of the 3rd inductance receives the electric current of the earth, is adjusted by the 3rd inductance and the second electric capacity
Resonance, the 3rd inductance and the 4th inductance mutual inductance, export very low frequency electric current to described outfan.
The most more preferably, also include booster circuit and reduction voltage circuit,
Described booster circuit is connected between described input and described wireless power transmission transmitting terminal use
In improving transmission voltage；
Described reduction voltage circuit is connected between described wireless power transmission receiving terminal and described electricity consumption end use
In reducing the voltage received.
The most more preferably, described wireless power transmission transmitting terminal also includes a liter frequency circuit；
Described raising frequency is electrically connected to the input of described wireless power transmission transmitting terminal and described generating
Between machine, the low-frequency current raising frequency being used for sending electromotor is to very low frequency electric current.
The most more preferably, described liter of frequency circuit includes: the 3rd electric capacity and the sparking of the first power high-frequency
Device；
3rd electric capacity and the first power high-frequency fire maker, the 3rd electric capacity first pole connect high frequency to
First end of the input of wireless power transmission transmitting terminal and the first end of the first power high-frequency fire maker
Connecting, the second pole of the 3rd electric capacity connects the second end of the input of wireless power transmission transmitting terminal, the
Second end of one power high-frequency fire maker connects the first end of the first inductance..
The most more preferably, described wireless power transmission receiving terminal also includes frequency down circuit；
Described frequency down circuit is connected to the outfan of described wireless power transmission receiving terminal and described electricity consumption
Between end, for the very low frequency electric current that described wireless power transmission receiving terminal exports is downconverted to low-frequency electrical
Stream.
The most more preferably, described frequency down circuit includes: the 4th electric capacity and the sparking of the second power high-frequency
Device；
First end of described second power high-frequency fire maker connects the first end of described 4th inductance,
Second end of described second power high-frequency fire maker connects the first end of described outfan and described
First pole of the 4th electric capacity, the second machine of described 4th electric capacity connects the second of described 4th inductance
End and the second end of described outfan.
The most more preferably, described wireless power transmission transmitting terminal also includes the 5th inductance and the 6th inductance；
Described 5th inductance is connected with described first inductance；Described 6th inductance and described two inductance
Series connection.
The most more preferably, described wireless power transmission transmitting terminal also includes the 7th inductance and the 8th inductance；
Described 7th inductance is connected with described 3rd inductance；Described 8th inductance and described four inductance
Series connection.
The most more preferably, it is additionally provided with the first over-current protecting unit at wireless power transmission transmitting terminal, the
One over-current protecting unit is arranged between the input of electromotor and wireless power transmission transmitting terminal；
Wireless power transmission receiving terminal is additionally provided with the second over-current protecting unit, the first over-current protecting unit
It is arranged between the outfan of electricity consumption end and wireless power transmission receiving terminal.
The most more preferably, described first electric capacity, the first pole of the second electric capacity be spheric electrode or
Annular electrode, the first electrode of described first electric capacity and the earth composition the first electric capacity, described second
First electrode of electric capacity constitutes the second electric capacity.
The wireless power transmission systems that the present invention provides, after low-frequency electrical is risen altofrequency, by resonance electricity
Launching of road, using the earth self as conductor, it is achieved tellurian any land can reach
Local transmission of electricity, allow the other wireless power transmission of technical grade become a reality.The nothing provided by the present invention
Line transmission system effectively reduces Transmission Cost.
Accompanying drawing explanation
Fig. 1 is wireless power transmission systems of the present invention transmission of electricity principle schematic；
Fig. 2 is that wireless power transmission systems of the present invention increases boost circuit structure schematic diagram；
Fig. 3 is that wireless power transmission systems of the present invention increases raising frequency electrical block diagram；
Fig. 4 a, 4b are that wireless power transmission systems of the present invention increases inductive circuit structural representation；
Fig. 5 is that wireless power transmission systems of the present invention increases current foldback circuit structural representation；
Fig. 6 is wireless power transmission systems spheric electrode schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is made the most in detail
Describe.Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
As it is shown in figure 1, the present invention provides a kind of wireless power transmission systems, this wireless power transmission systems bag
Include wireless power transmission transmitting terminal and wireless power transmission receiving terminal；Wireless power transmission transmitting terminal passes through the earth to nothing
Line transmission of electricity receiving terminal transmission electric current, wherein, wireless power transmission transmitting terminal includes: input, first
Inductance, the second inductance and the first electric capacity；First inductance two ends connect input, the second inductance one
End connects first electric capacity the first pole plate, the first inductance other end ground connection；Wireless power transmission transmitting terminal
Input receives very low frequency electric current, the first inductance and the second inductance mutual inductance, the second inductance and first
Electric capacity produces resonance, by earth terminal by incoming for electric current the earth；Wireless power transmission receiving terminal includes:
Outfan, the 3rd inductance, the 4th inductance and the second electric capacity；4th inductance two ends connect outfan,
3rd inductance one end connects second electric capacity the first pole plate, the 3rd inductance other end ground connection；3rd electricity
The earth terminal of sense receives the electric current of the earth, is shaken by the 3rd inductance and the second capacitance tuning, and the 3rd
Inductance and the 4th inductance mutual inductance, export very low frequency electric current to outfan.Below the present invention is provided
Wireless power transmission systems launch detailed description.
As in figure 2 it is shown, in order to reduce the circuit loss during transmission of electricity further, wireless
Transmission of electricity transmitting terminal is additionally provided with booster circuit.Booster circuit is connected to input and wireless power transmission is sent out
Penetrate between end for improving transmission voltage.Similarly corresponding with wireless power transmission transmitting terminal, wireless
Transmission of electricity receiving terminal is additionally provided with reduction voltage circuit, and reduction voltage circuit is connected to wireless power transmission receiving terminal and use
For reducing the voltage of reception between electricity end.
As it is shown on figure 3, in the present invention, according to the transmission principle of electromagnetic wave, on ground, electricity
The propagation of magnetic wave is with air as communication media, and it is almost without loss, and wave frequency is optional
Taking high frequency, hyperfrequency, therefore, its radiation efficiency is high, and antenna physical size is short, and volume is little.
And the electromagnetic wave penetrating stratum is to propagate in bigger coal seam and lithosphere are lost, operating frequency
Very low frequency section (VLF) or even audio section (VF) must be dropped to, just can have certain penetration capacity.
Knowable to expression formula Β of amplitude attenuation constant=Π f Λ Ρ, the frequency of electromagnetic wave is the lowest, medium
Electrical conductivity Ρ the least, the rate of decay is the slowest, is more conducive to the transmission of energy.And existing
The electricity that group of motors sends is 50Hz.And such low frequency is easily subject in the earth transmitting procedure
To interference, it is unfavorable for the long-distance transmissions of electric energy.In order to not change existing low-frequency generator
On the premise of group, the low-frequency electrical making existing low-frequency generator group send also can be carried by the present invention
The wireless power transmission systems transmission of confession needs to arrange liter between electromotor and this wireless power transmission systems
Frequency circuit, the low-frequency electrical raising frequency that liter frequency circuit is used for sending generating set, to very low frequency, leads to afterwards
The input crossing wireless power transmission transmitting terminal enters this wireless power transmission systems.Rise frequency circuit and include the 3rd
Electric capacity and the first power high-frequency fire maker, the first pole of the 3rd electric capacity connects high frequency to wireless power transmission
First end of the input of transmitting terminal and the first end of the first power high-frequency fire maker connect, and the 3rd
Second pole of electric capacity connects the second end of the input of wireless power transmission transmitting terminal, the first power high-frequency
Second end of fire maker connects the first end of the first inductance.Same, wireless power transmission receives termination
The electricity receiving output is also very low frequency electricity, cannot normally use, need wireless on conventional equipment
Transmission of electricity receiving terminal receives the electricity of output and reduces frequency, it is therefore desirable to arrange at wireless power transmission receiving terminal
Frequency down circuit.Frequency down circuit is connected between the outfan of wireless power transmission receiving terminal and electricity consumption end,
For the very low frequency electric current that wireless power transmission receiving terminal exports is downconverted to low-frequency current.Frequency down circuit
Including: the 4th electric capacity and the second power high-frequency fire maker；The first of second power high-frequency fire maker
End connects the first end of the 4th inductance, and the second end of the second power high-frequency fire maker connects outfan
The first end and the first pole of the 4th electric capacity, the second pole of the 4th electric capacity connects the of the 4th inductance
Two ends and the second end of outfan.
As shown in fig. 4 a, various such environmental effects wireless power transmission system under the conditions of different geographical
System, in order to step improves this wireless power transmission systems practicality, to the first electricity under the conditions of different geographical
Sense, the second adjustment of inductance, can arrange the first inductance adjustment circuitry at wireless power transmission transmitting terminal,
This first inductance adjustment circuitry includes the 6th inductance；Described 6th inductance and described two inductance strings
Connection.Similarly, described wireless power transmission transmitting terminal can also arrange the second inductance adjustment circuitry, should
Second inductance adjustment circuitry the 7th inductance；Described 7th inductance is connected with described 3rd inductance.?
In the present invention, the 6th inductance, the 7th inductance, the 9th inductance are preferably controllable impedance.
As shown in Figure 4 b, in order to be further ensured that this one wireless power transmission systems is useful in difference
Under regional condition, to the first inductance, the second adjustment of inductance under the conditions of different geographical, wireless
Transmission of electricity transmitting terminal can arrange the first inductance adjustment circuitry, and this first inductance adjustment circuitry includes the
Five inductance and the 6th inductance；Described 5th inductance is connected with described first inductance；Described 6th electricity
Sense is connected with described two inductance.Similarly, described wireless power transmission transmitting terminal can also arrange second
Inductance adjustment circuitry, this second inductance adjustment circuitry the 7th inductance and the 8th inductance；Described 7th
Inductance is connected with described 3rd inductance；Described 8th inductance is connected with described four inductance.At this
In bright, the 5th inductance, the 6th inductance, the 7th inductance, the 8th inductance are preferably controllable impedance.This
Invention is tuned by controllable impedance according to the change of impedance, to adapt to the nothing under the conditions of different geographical
Line is transmitted electricity.
As it is shown in figure 5, for the safety being further ensured that this wireless power transmission systems, wireless
Transmission of electricity transmitting terminal is additionally provided with the first over-current protecting unit, and the first over-current protecting unit is arranged on to be sent out
Between the input of motor and wireless power transmission transmitting terminal.Similarly also set at wireless power transmission receiving terminal
Being equipped with the second over-current protecting unit, the first over-current protecting unit is arranged on electricity consumption end and wireless power transmission
Between the outfan of receiving terminal.
The most described first electric capacity, the first pole of the second electric capacity are spheric electrode or ring
Shape electrode, the first electrode of described second electric capacity and the earth constitute the first electric capacity, described first electricity
Hold the conventional capacitive for coordinating the second electric capacity.Spheric electrode or annular electrode install phase in the wild
More stable for face type electrode, spheric electrode is better than annular electrode.
The wireless power transmission systems that the present invention provides, transmits energy, very low frequency by very low frequency electric current
It is similar to based on single line transmission of electricity principle for being wirelessly transferred, and the wire parameter of single line transmission of electricity may finally
Equivalence becomes a resistance to add a reactance.And present invention the earth does conductor, the earth is equivalent to only
The wire of one.Equivalence a resistance and an electricity can be become with receiving terminal the earth for transmitting terminal
Anti-.
The address of receiving terminal provided due to the present invention can be arbitrarily selected, the vibration of transmitting terminal because of
Son is equal to the earth and the blocking factor sum of receiving terminal.As a example by Lichuan County, Hubei area, if
The electricity of single-phase defeated 2 megawatts, transmission frequency is 20kh, at a distance of 3.75 kms, sends out by calculating
Penetrating end and receiving terminal, the voltage of every phase is 220kv, and equivalent resistance is 243 Europe, the earth etc.
Imitating into single line effective current is about 15.7 peaces, and loss is about percent 3.To the present invention
For, owing to the present invention converts electrical energy into very low frequency electric current by transmitting terminal, made by the earth
For transmitting the conductor of electric energy, between transmitting terminal and receiving terminal between impedance and transmitting terminal and receiving terminal
Geographic distance impact little, small change can solve in tuning.No matter transmitting terminal and
Receiving terminal is far and near, and greatly impedance becomes impedance in tuning process equivalence.Therefore, no matter transmission distance
Transmission system transmission of electricity better than existing power transmission mode that is how far, that provided by the present invention.
In sum, the wireless power transmission systems that the present invention provides, after low-frequency electrical is risen altofrequency,
Launching by resonance circuit, using the earth self as conductor, it is achieved tellurian arbitrarily
The local transmission of electricity that land can reach, allows the other wireless power transmission of technical grade become a reality.By this
The wireless power transmission systems of bright offer effectively reduces Transmission Cost.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, relevant
The those of ordinary skill of technical field, without departing from the spirit and scope of the present invention,
Can also make a variety of changes and modification, the technical scheme of the most all equivalents falls within the present invention
Category, the scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. a wireless power transmission systems, it is characterised in that include wireless power transmission transmitting terminal and nothing
Line transmission of electricity receiving terminal；Described wireless power transmission transmitting terminal passes through the earth to described wireless power transmission receiving terminal
Transmission electric current, wherein,
Wireless power transmission transmitting terminal includes: input, the first inductance, the second inductance and the first electric capacity；
Described first inductance two ends connect described input, and described second inductance one end connects first
Electric capacity the first pole plate, described first inductance other end ground connection；
The input of described wireless power transmission transmitting terminal receives very low frequency electric current, the first inductance and second
Inductance mutual inductance, the second inductance and the first electric capacity produces resonance, by earth terminal by incoming for electric current greatly
Ground；
Wireless power transmission receiving terminal includes: outfan, the 3rd inductance, the 4th inductance and the second electric capacity；
Described 4th inductance two ends connect described outfan, and described 3rd inductance one end connects second
Electric capacity the first pole plate, described 3rd inductance other end ground connection；
The earth terminal of the 3rd inductance receives the electric current of the earth, is adjusted by the 3rd inductance and the second electric capacity
Resonance, the 3rd inductance and the 4th inductance mutual inductance, export very low frequency electric current to described outfan.
2. wireless power transmission systems as claimed in claim 1, it is characterised in that also include rising
Volt circuit and reduction voltage circuit,
Described booster circuit is connected between described input and described wireless power transmission transmitting terminal use
In improving transmission voltage；
Described reduction voltage circuit is connected between described wireless power transmission receiving terminal and described electricity consumption end use
In reducing the voltage received.
3. wireless power transmission systems as claimed in claim 1, it is characterised in that described wireless
Transmission of electricity transmitting terminal also includes a liter frequency circuit；
Described raising frequency is electrically connected to the input of described wireless power transmission transmitting terminal and described generating
Between machine, the low-frequency current raising frequency being used for sending electromotor is to very low frequency electric current.
4. wireless power transmission systems as claimed in claim 3, it is characterised in that described raising frequency
Circuit includes: the 3rd electric capacity and the first power high-frequency fire maker；
3rd electric capacity and the first power high-frequency fire maker, the 3rd electric capacity first pole connect high frequency to
First end of the input of wireless power transmission transmitting terminal and the first end of the first power high-frequency fire maker
Connecting, the second pole of the 3rd electric capacity connects the second end of the input of wireless power transmission transmitting terminal, the
Second end of one power high-frequency fire maker connects the first end of the first inductance.
5. wireless power transmission systems as claimed in claim 1, it is characterised in that described wireless
Transmission of electricity receiving terminal also includes frequency down circuit；
Described frequency down circuit is connected to the outfan of described wireless power transmission receiving terminal and described electricity consumption
Between end, for the very low frequency electric current that described wireless power transmission receiving terminal exports is downconverted to low-frequency electrical
Stream.
6. wireless power transmission systems as claimed in claim 5, it is characterised in that described frequency reducing
Circuit includes: the 4th electric capacity and the second power high-frequency fire maker；
First end of described second power high-frequency fire maker connects the first end of described 4th inductance,
Second end of described second power high-frequency fire maker connects the first end of described outfan and described
First pole of the 4th electric capacity, the second machine of described 4th electric capacity connects the second of described 4th inductance
End and the second end of described outfan.
7. wireless power transmission systems as claimed in claim 1, it is characterised in that described wireless
Transmission of electricity transmitting terminal also includes the 5th inductance and the 6th inductance；
Described 5th inductance is connected with described first inductance；Described 6th inductance and described two inductance
Series connection.
8. wireless power transmission systems as claimed in claim 1, it is characterised in that described wireless
Transmission of electricity transmitting terminal also includes the 7th inductance and the 8th inductance；
Described 7th inductance is connected with described 3rd inductance；Described 8th inductance and described four inductance
Series connection.
9. wireless power transmission systems as claimed in claim 1, it is characterised in that
Wireless power transmission transmitting terminal is additionally provided with the first over-current protecting unit, the first over-current protecting unit
It is arranged between the input of electromotor and wireless power transmission transmitting terminal；
Wireless power transmission receiving terminal is additionally provided with the second over-current protecting unit, the second over-current protecting unit
It is arranged between the outfan of electricity consumption end and wireless power transmission receiving terminal.
10. wireless power transmission systems as claimed in claim 1, it is characterised in that described first
Electric capacity, the first pole of the second electric capacity are spheric electrode or annular electrode, described first electric capacity
First electrode and the earth constitute the first electric capacity, and the first electrode of described second electric capacity is constituted with the earth
Second electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176479.9A CN106160250B (en) | 2015-04-14 | 2015-04-14 | Wireless power transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176479.9A CN106160250B (en) | 2015-04-14 | 2015-04-14 | Wireless power transmission system |
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| CN106160250A true CN106160250A (en) | 2016-11-23 |
| CN106160250B CN106160250B (en) | 2021-01-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879972A (en) * | 2018-06-19 | 2018-11-23 | 武汉大学 | A kind of optimization method of full panel pole plate coupled capacitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108879972A (en) * | 2018-06-19 | 2018-11-23 | 武汉大学 | A kind of optimization method of full panel pole plate coupled capacitor |
| CN108879972B (en) * | 2018-06-19 | 2021-08-03 | 武汉大学 | Optimization method for comprehensive plate electrode plate coupling capacitance |
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| Publication number | Publication date |
|---|---|
| CN106160250B (en) | 2021-01-29 |
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