CN206834849U - A kind of and series compensation type fractional order inductively radio energy transmission system - Google Patents
A kind of and series compensation type fractional order inductively radio energy transmission system Download PDFInfo
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- CN206834849U CN206834849U CN201720480016.6U CN201720480016U CN206834849U CN 206834849 U CN206834849 U CN 206834849U CN 201720480016 U CN201720480016 U CN 201720480016U CN 206834849 U CN206834849 U CN 206834849U
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Abstract
The utility model discloses a kind of and series compensation type fractional order inductively radio energy transmission system, including emitting portion, receiving portion and the current source being connected with emitting portion and the load being connected with the receiving portion, emitting portion includes transmitting terminal fractional order compensation network, fractional order inductive emitter coil and radiating circuit internal resistance, in parallel with transmitting terminal fractional order compensation network after fractional order inductive emitter coil and radiating circuit internal resistance series connection, receiving portion includes receiving terminal fractional order compensation network, fractional order inductance receiving coil and the receiving circuit internal resistance being connected in series.The utility model is inductively realized wireless power transmission using fractional order inductance coil, the network of transmitting terminal fractional order compensation simultaneously is parallel to compensation system reactive power in emitting portion, receiving terminal fractional order compensates series network compensation system reactive power in receiving portion, System Parameter Design is flexible, is easy to optimize.
Description
Technical field
Wireless power transmission or the technical field of wireless power transmission are the utility model is related to, a kind of parallel-serial is referred in particular to and mends
The type fractional order of repaying inductively radio energy transmission system.
Background technology
Before more than 100 years, Ni Gula teslas (Nikola Tesla) point in the case of no any wire connection
Bright bulb, it was demonstrated that the feasibility of electric energy wireless transmission.Because radio energy technology is a kind of contactless electric energy transmission
Technology, there is the advantages of safe and reliable, flexible, increasing scholar is put into wireless power transmission field.
At present, the implementation of wireless power transmission includes：Magnetic induction coupling, magnetic resonance coupling, field coupling, microwave,
Laser etc..Wherein magnetic induction coupling wireless power transmission is extremely wide in engineer applied, such as implantable medical device, electric tooth
Brush, mobile phone, electric automobile etc..Current magnetic induction coupling radio energy transmission system is all based on the realization of integer rank element.
The concept source of fractional order element (i.e. fractional order inductance and fractional order electric capacity) is in fractional calculus.In fact,
Integer rank inductance, capacity cell in nature and are not present, and the inductance that simply uses at present, the fractional order of electric capacity are close to 1.
As people deepen continuously to inductance, capacitance characteristic understanding, start to consider that their fractional order influences, or purposefully utilize
Their fractional order improves circuit performance, and has also been proved in some application scenarios to have more advantage than integer rank element,
Such as the application in impedance matching circuit.However, fractional order element is in parallel-serial offset-type inductively wireless power transmission
Application in system is never mentioned, therefore proposes a kind of parallel-serial offset-type fractional order inductively wireless power transmission system
System has real value.
The content of the invention
The purpose of this utility model is overcome the deficiencies in the prior art and shortcoming, there is provided a kind of parallel-serial offset-type
Fractional order inductively radio energy transmission system, the wireless biography of electric energy is inductively realized using fractional order inductance coil
Defeated, magnetic linkage or voltage, not only related to inductance value caused by fractional order inductance coil, and related to its fractional order, and divides
The reactive power of number rank compensation network building out is also related to fractional order element exponent number therein, and parameter designing is flexible, is easy to optimize,
Performance is different from the parallel-serial offset-type inductively radio energy transmission system of conventional integer rank element realization completely.
To achieve the above object, technical scheme provided by the utility model is：A kind of parallel-serial offset-type fractional order sense
Should couple radio energy transmission system, including emitting portion, receiving portion and the current source being connected with the emitting portion and with this
Receiving portion connection load, the emitting portion include transmitting terminal fractional order compensation network, fractional order inductive emitter coil and
After radiating circuit internal resistance, the fractional order inductive emitter coil and radiating circuit internal resistance series connection network is compensated with transmitting terminal fractional order
Parallel connection, the transmitting terminal fractional order compensation network are parallel to compensation system reactive power in emitting portion, the acceptance division subpackage
Include receiving terminal fractional order compensation network, fractional order inductance receiving coil and the receiving circuit internal resistance being connected in series, the receiving terminal
Fractional order compensates series network compensation system reactive power in receiving portion；The fractional order inductive emitter coil and fractional order
Inductance receiving coil realizes being wirelessly transferred for electric energy by electromagnetic induction coupling；The transmitting terminal fractional order compensation network and reception
End fractional order compensation network comprises at least a fractional order electric capacity respectively.
The voltage of the fractional order inductive emitter coil, current differential relation meet：Phase relation meetsImpedance is：In formula, iL1For fraction
Rank inductive emitter coil current, vL1For fractional order inductive emitter coil voltage, β1For the self-induction point of fractional order inductive emitter coil
Number exponent number, and 0 ＜ β1≤ 2, Lβ1It is fractional order inductive emitter coil from inductance value, works as β1When taking 1, fractional order inductive emitter line
Circle is integer rank inductance coil；The voltage of the fractional order inductance receiving coil, current differential relation meet：
Phase relation meetsImpedance is：
In formula, iL2For fractional order inductance receiving coil electric current, vL2For fractional order inductance receiving coil voltage, β2Received for fractional order inductance
The self-induction fractional order of coil, and 0 ＜ β2≤ 2, Lβ2It is fractional order inductance receiving coil from inductance value, works as β2When taking 1, fraction
Rank inductance receiving coil is integer rank inductance coil；The fractional order inductive emitter coil and fractional order inductance receiving coil
Mutual inductance value is M, mutual inductance exponent number is γ, and the voltage of mutual inductance, current differential relation meetOr
The voltage v of the fractional order electric capacityCWith electric current iCDifferential relationship meets：Phase relation meetsImpedance is：Wherein fractional order exponent number meets 0 ＜ α≤2,
CαFor fractional order capacitor's capacity, ω is the work angular frequency of system, and when the exponent number of fractional order electric capacity is 1, as integer rank is electric
Hold.
The utility model compared with prior art, has the following advantages that and beneficial effect：
1st, inductively wireless power transmission is realized using fractional order inductance, adds the free degree of parameter designing, completely
It is different from conventional integer rank inductively radio energy transmission system.
2nd, using the compensation network comprising fractional order electric capacity, by reasonably designing exponent number, not only can with compensation system without
Work(power can also compensate for the active power of system, be different from completely conventional integer rank parallel-serial compensation inductively without
Line electric energy transmission system.
3rd, by being suitably designed fractional order exponent number, transimission power can be made bigger.
Brief description of the drawings
Fig. 1 is that the structure of parallel-serial offset-type fractional order of the present utility model inductively radio energy transmission system is shown
It is intended to.
Fig. 2 is the physical circuit figure of Tthe utility model system in embodiment.
Power output and the relation curve of mutual inductance when Fig. 3 is α=β in embodiment.
Fig. 4 is when being α=β in embodiment efficiency and the relation curve of mutual inductance.
Fig. 5 is when being α ≠ β in embodiment power output and the relation curve of mutual inductance.
Fig. 6 is when being α ≠ β in embodiment efficiency and the relation curve of mutual inductance.
Fig. 7 is α=0.9 in embodiment, the voltage x current time domain of transmitting terminal fractional order compensation network during β=1.1
Waveform.
Fig. 8 is α=0.9 in embodiment, the voltage x current time domain ripple of fractional order inductive emitter coil during β=1.1
Shape.
Embodiment
For content and feature of the present utility model is expanded on further, below in conjunction with accompanying drawing to specific implementation of the present utility model
Scheme is specifically described, but implementation of the present utility model and protection not limited to this.
It is shown in Figure 1, the parallel-serial offset-type fractional order that the present embodiment is provided inductively wireless power transmission system
System, including emitting portion, receiving portion and the current source I being connected with the emitting portionSThe load being connected with the receiving portion
RL, the emitting portion include transmitting terminal fractional order compensation network, fractional order inductive emitter coil Lβ1With radiating circuit internal resistance RS1,
The fractional order inductive emitter coil Lβ1With radiating circuit internal resistance RS1It is in parallel with transmitting terminal fractional order compensation network after series connection, institute
State transmitting terminal fractional order compensation network and be parallel to compensation system reactive power in emitting portion, the receiving portion includes series connection and connected
Receiving terminal fractional order compensation network, the fractional order inductance receiving coil L connectβ2With receiving circuit internal resistance RS2, the receiving terminal fraction
Rank compensates series network compensation system reactive power in receiving portion；The transmitting terminal fractional order compensation network and receiving terminal point
Number rank compensation network comprises at least a fractional order electric capacity respectively.
It is shown in Figure 2, ZC1Represent transmitting terminal fractional order compensation network, ZC2Receiving terminal fractional order compensation network is represented, its
Mid-score rank inductive emitter coil Lβ1Exponent number and inductance value be respectively β1And Lβ1, β1Meet 0 ＜ β1≤2；Fractional order inductance receives
Coil Lβ2Exponent number and inductance value be respectively β2And Lβ2, β2Meet 0 ＜ β2≤2；Fractional order inductive emitter coil Lβ1With fractional order electricity
Feel receiving coil Lβ2Being wirelessly transferred for electric energy is realized by electromagnetic induction coupling, wherein mutual inductance value is M, mutual inductance exponent number is γ；
In Fig. 2, transmitting terminal fractional order compensation network ZC1Employ a fractional order electric capacity composition, receiving terminal fractional order compensation network ZC2
A fractional order electric capacity composition is employed, therefore, the fractional order compensation network impedance expression formula point of emitting portion and receiving portion
It is not：
Wherein Cα1、Cα2Electric capacity respectively in transmitting terminal fractional order compensation network and receiving terminal fractional order compensation network holds
Value, fractional order exponent number α1Meet 0 ＜ α1≤ 2, fractional order exponent number α2Meet 0 ＜ α2≤2.From the expression formula of above-mentioned impedance, divide
Number ranks compensation networks not only can compensate for it is idle can also compensate for it is active, and exponent number be more than 1 when, fractional order compensate network impedance
With negative resistance property.And integer rank compensation network can only compensating reactive power.
It can be obtained according to KCL and KVL by Fig. 2：
Therefore solving output current is：
Wherein：
So power output can be obtained being：
PO=| I2(jω)|2RL
In order to realize the full reactive-load compensation of system, receiving portion need to meet that receiving terminal fractional order electric capacity receives inductance with fractional order
Coil resonance, emitting portion meet that input impedance is pure resistance characteristic, then can try to achieve the fractional order electric capacity of receiving terminal and transmitting terminal
It need to meet respectively：
Wherein：
Input voltage when can then obtain the full reactive-load compensation of system is：
Input power is：
The efficiency of transmission of system is expressed as：
From above-mentioned equation, the power output and efficiency of system are not only relevant with working frequency ω, mutual inductance M, also with electricity
Feel exponent number β1、β2, γ and fractional order compensation network exponent number α1, α2It is relevant.Shadow of the following discussion fractional order exponent number to systematic function
Ring.For easy analysis, make the fractional order electric capacity exponent number in emitting portion and receiving portion equal, fractional order inductive emitter and connect
The self-induction exponent number and mutual inductance exponent number of take-up circle are equal, i.e. α1=α2=α, β1=β2=γ=β.
1) as α=β, as an example, the design parameter of fractional order inductively radio energy transmission system is：IS=
1A,RS1=RS2=1 Ω, RL=10 Ω, Lβ1=Lβ2=LβThe π * 20000rad/s of=200 μ H, ω=2, exponent number take respectively β=
0.99, β=1.00, β=1.01.Ca1And Ca2Value meet the condition of the full reactive-load compensation of system.Power output and efficiency with mutually
Feel relation curve as shown in Figure 3 and Figure 4.As shown in Figure 3 as β=1.01, system output power and efficiency are all higher than integer rank
Situation power output is more than integer rank situation, the especially situation in low mutual inductance.
2) as α ≠ β, as an example, system element exponent number takes α=0.9, β=1.1, α=1.1 respectively, and β=0.9, α=
0.9, β=0.8, other parameters are same as above, and power output and efficiency and mutual inductance relationships curve are as shown in Figure 5 and Figure 6.As α=0.9, β
When=1.1, system output power and efficiency are both greater than the situation of integer rank in full mutual inductance scope, particularly in M=100 μ H,
Voltage x current, time domain waveform such as Fig. 7 and Fig. 8 of emission inductance voltage x current of transmitting compensation network.
Above-mentioned analysis understands, parallel-serial offset-type fractional order of the present utility model inductively radio energy transmission system
Inductively there is very big difference, the utility model system in radio energy transmission system to the integer rank compensated with traditional parallel-serial
The advantages of system, is it is clear that be worthy to be popularized.
Embodiment described above is only the preferred embodiment of the utility model, not limits implementation of the present utility model with this
Scope, therefore the change that all shape, principles according to the utility model are made, all should cover in the scope of protection of the utility model.
Claims (3)
- A kind of 1. parallel-serial offset-type fractional order inductively radio energy transmission system, it is characterised in that：Including emission part Point, receiving portion and the current source being connected with the emitting portion and the load being connected with the receiving portion, the emission part subpackage Include transmitting terminal fractional order compensation network, fractional order inductive emitter coil and radiating circuit internal resistance, the fractional order inductive emitter line In parallel with transmitting terminal fractional order compensation network after circle and radiating circuit internal resistance series connection, the transmitting terminal fractional order compensation network is in parallel The compensation system reactive power in emitting portion, the receiving portion include be connected in series receiving terminal fractional order compensation network, Fractional order inductance receiving coil and receiving circuit internal resistance, the receiving terminal fractional order compensation series network compensate in receiving portion System reactive power；The fractional order inductive emitter coil and fractional order inductance receiving coil are coupled by electromagnetic induction and realize electricity Energy is wirelessly transferred；The transmitting terminal fractional order compensation network and receiving terminal fractional order compensation network comprise at least one point respectively Number rank electric capacity.
- 2. a kind of parallel-serial offset-type fractional order according to claim 1 inductively radio energy transmission system, it is special Sign is：The voltage of the fractional order inductive emitter coil, current differential relation meet：Phase relation meetsImpedance is：In formula, iL1For fraction Rank inductive emitter coil current, vL1For fractional order inductive emitter coil voltage, β1For the self-induction point of fractional order inductive emitter coil Number exponent number, and 0 ＜ β1≤ 2, Lβ1It is fractional order inductive emitter coil from inductance value, works as β1When taking 1, fractional order inductive emitter line Circle is integer rank inductance coil；The voltage of the fractional order inductance receiving coil, current differential relation meet： Phase relation meetsImpedance is：Formula In, iL2For fractional order inductance receiving coil electric current, vL2For fractional order inductance receiving coil voltage, β2Line is received for fractional order inductance The self-induction fractional order of circle, and 0 ＜ β2≤ 2, Lβ2It is fractional order inductance receiving coil from inductance value, works as β2When taking 1, fractional order Inductance receiving coil is integer rank inductance coil；The fractional order inductive emitter coil and fractional order inductance receiving coil it is mutual Inductance value is M, mutual inductance exponent number is γ, and the voltage of mutual inductance, current differential relation meetOr
- 3. a kind of parallel-serial offset-type fractional order according to claim 1 inductively radio energy transmission system, it is special Sign is：The voltage v of the fractional order electric capacityCWith electric current iCDifferential relationship meets：Phase relation meetsImpedance is：Wherein fractional order exponent number meets 0 ＜ α≤2, CαFor fractional order capacitor's capacity, ω is the work angular frequency of system, and when the exponent number of fractional order electric capacity is 1, as integer rank is electric Hold.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086674A (en) * | 2017-05-03 | 2017-08-22 | 华南理工大学 | A kind of and series compensation type fractional order inductively radio energy transmission system |
| CN110556926A (en) * | 2018-05-30 | 2019-12-10 | 兴澄股份有限公司 | Multi-receiving wireless charging system and method thereof |
-
2017
- 2017-05-03 CN CN201720480016.6U patent/CN206834849U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086674A (en) * | 2017-05-03 | 2017-08-22 | 华南理工大学 | A kind of and series compensation type fractional order inductively radio energy transmission system |
| CN110556926A (en) * | 2018-05-30 | 2019-12-10 | 兴澄股份有限公司 | Multi-receiving wireless charging system and method thereof |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230315 Address after: Room 402-F001, Building 4, No. 5 Mupi East Road, Tianhe District, Guangzhou City, Guangdong Province, 510630 Patentee after: Guangzhou Qingdian Technology Co.,Ltd. Address before: 510640 No. five, 381 mountain road, Guangzhou, Guangdong, Tianhe District Patentee before: SOUTH CHINA University OF TECHNOLOGY |
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