CN104124763B - Tunable wireless power transmission launching technique, apparatus and system - Google Patents
Tunable wireless power transmission launching technique, apparatus and system Download PDFInfo
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- CN104124763B CN104124763B CN201310153300.9A CN201310153300A CN104124763B CN 104124763 B CN104124763 B CN 104124763B CN 201310153300 A CN201310153300 A CN 201310153300A CN 104124763 B CN104124763 B CN 104124763B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- Computer Networks & Wireless Communication (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of tunable wireless power transmission launching techniques, apparatus and system.Whether it compared to power section where previous moment bearing power is same bearing power section that the wireless power transmission launching technique that this is tunable includes: power section where detection present load power；Power section where present load power adjusts driving frequency and resonant parameter compared to when power section is different loads power section where previous moment bearing power.Wireless power transmission launching technique that one kind disclosed by the invention is tunable, apparatus and system, when bearing power is located at different loads power section, adjust resonant parameter and driving frequency, avoid occurring it is detuning, to improve the efficiency of transmission of Wireless power transmission system.
Description
Technical field
The present invention relates to power transmission technology field, more particularly to a kind of tunable wireless power transmission launching technique,
Apparatus and system.
Background technique
Raising with user to power requirement, efficient, convenient and fast wireless power transmission become the mainstream hair of electric energy transmission
Open up direction.
In the prior art, Wireless power transmission system is controlled using conversion system carries out electric energy transmission.Using the party
When the Wireless power transmission system of formula corresponds to the load of different capacity section, resonance ginseng can only be carried out for a certain specific load point
Several configurations.When system works the load in other power sections, setting for resonant parameter cannot be carried out for current load point
It sets, causes driving frequency and resonance frequency detuning, to reduce the efficiency of transmission of Wireless power transmission system.
Summary of the invention
It is an object of the invention to propose the tunable wireless power transmission launching technique of one kind, apparatus and system, overcome
When bearing power changes in the prior art, resonant parameter is non-adjustable, causes driving frequency and resonance frequency detuning, to drop
The problem of efficiency of transmission of low Wireless power transmission system.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of tunable wireless power transmission launching technique, comprising: obtain present load power, detect present load function
Whether power section is same bearing power section compared to power section where previous moment bearing power where rate；
Power section is different loads function compared to power section where previous moment bearing power where present load power
When rate section, driving frequency and resonant parameter are adjusted.
Preferably, power section where detection present load power compared to power section where previous moment bearing power whether
For same bearing power section, comprising:
Present load power and power threshold are obtained, present load function where judging present load power according to power threshold
Rate section, and record；
Power section where obtaining previous moment bearing power, compares present load power section and previous moment bearing power section
It whether is same bearing power section.
Preferably, adjust driving frequency, comprising: according to resonance frequency adjust driving frequency, driving frequency adjusted with
Resonance frequency is identical.
A kind of tunable wireless power transmission emitter, including, bearing power detection module and with the load function
The adjustment of load module of rate detection module connection；
Bearing power detection module, for obtaining present load power, power section where detection present load power is compared
Whether the power section where previous moment bearing power is same bearing power section；
Adjustment of load module, for when present load power place power section is compared to function where previous moment bearing power
When rate section is different loads power section；Adjust driving frequency and resonant parameter.
Preferably, bearing power detection module includes:
Memory module is detected, present load power obtains present load power and power threshold, judges according to power threshold
Present load power section where present load power, and, record；
Multilevel iudge module, obtain previous moment bearing power where power section, compare present load power section with it is previous
Whether moment bearing power section is same bearing power section.
Preferably, adjustment of load module includes:
Main circuit control module and the tuner module being attached thereto；
Main circuit control module, power where the detection present load power for receiving the transmission of bearing power detection module
Section compared to power section where previous moment bearing power whether be same bearing power section signal, and basis signal driving is adjusted
Humorous module；
Tuner module, under the driving of main circuit control module, adjustment to access the resonant capacitance matrix of circuit.
Preferably, further includes: power supply module, primary coil module and inverter circuit module；
Adjustment of load module one end connects power supply module, and the other end connects primary coil module；
Inverter circuit module one end connects adjustment of load module, and the other end connects primary coil module.
A kind of tunable Wireless power transmission system, comprising: by sequentially connected secondary coil, secondary side power module and
Load the tunable wireless power transmission reception device of composition；
With such as tunable wireless power transmission emitter of above-mentioned any one.
It can be seen via above technical scheme that compared with prior art, the radio that one kind disclosed by the invention is tunable
Power transmitting method, apparatus and system, comprising: obtain present load power, power section phase where detection present load power
It whether is same bearing power section compared with power section where previous moment bearing power；Power section where present load power is compared
When power section is different loads power section where previous moment bearing power, driving frequency and resonant parameter are adjusted.Pass through this
The technical solution of disclosure of the invention adjusts resonant parameter and driving frequency, avoids losing when load is located at different capacity section
It is humorous, to improve the efficiency of transmission of Wireless power transmission system.
Detailed description of the invention
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 technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of process signal for tunable wireless power transmission launching technique that the embodiment of the present invention one provides
Figure；
Fig. 2 is a kind of structural representation for tunable wireless power transmission emitter that the embodiment of the present invention three provides
Figure；
Fig. 3 is a kind of structural representation for tunable wireless power transmission emitter that the embodiment of the present invention four provides
Figure；
Fig. 4 is a kind of schematic device for tunable Wireless power transmission system that the embodiment of the present invention five provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Embodiment one
The embodiment of the present invention one discloses a kind of tunable wireless power transmission launching technique, as shown in Figure 1, comprising:
Step S101 obtains present load power；
Step S102, power section is compared to power section where previous moment bearing power where detection present load power
No is same bearing power section；
It needs to be illustrated, if power section is compared to previous moment bearing power institute where detection present load power
It is same bearing power section in power section, then keeps current driving power and resonant parameter.
In step s 102, power section where detection present load power is compared to power where previous moment bearing power
Whether section is that the detailed process of same bearing power section includes:
Firstly, obtaining present load power and power threshold, judge that present load power place is current according to power threshold
Bearing power section, and record；
Secondly, power section where obtaining previous moment bearing power, compares present load power section and previous moment loads
Whether power section is same bearing power section.
Step S103, power section is not compared to power section where previous moment bearing power where present load power
When with bearing power section, driving frequency and resonant parameter are adjusted.
Specifically, adjustment driving frequency include: according to resonance frequency adjust driving frequency, driving frequency adjusted with it is humorous
Vibration frequency is identical.
It should be noted that, the efficiency highest of Wireless power transmission system identical with driving frequency in resonance frequency, thus
Improve the efficiency of transmission of Wireless power transmission system.
The tunable wireless power transmission launching technique of one kind disclosed in one through the embodiment of the present invention, when load is located at not
When with power section, adjust resonant parameter and driving frequency, avoid occurring it is detuning, to improve the transmission effect of wireless power transmission
Rate.
Embodiment two
For the tunable wireless power transmission launch party of one kind disclosed in the elaboration embodiment of the present invention one more clearly
Method, the wireless power transmission launching technique that one kind disclosed in the embodiment of the present invention two is tunable is with regard to one disclosure of the embodiment of the present invention
Technical solution be illustrated.
Bearing power range is 0~600 watt, and load power threshold is 200 watts and 400 watts, then in 0~199 watt of section
Bearing power is located in low-load power section, and the bearing power in 200~399 watts of sections is located in middle bearing power section, 400~
Bearing power in 600 watts of sections is located in high load power section.
Detecting present load power is 99 watts, then power section where present load power is low-load power section, and is recorded.
If previous moment bearing power is 128 watts, power section where previous moment bearing power is low-load power section,
It is identical as bearing power section where present load power, then keep current driving power and tuner parameters.
If previous moment bearing power is 375 watts, power section where previous moment bearing power is high load power section,
It is different from bearing power section where present load power, then adjust driving power and tuner parameters.
The tunable wireless power transmission launching technique of one kind disclosed in two through the embodiment of the present invention, when load is located at not
When with power section, while adjusting resonant parameter and driving frequency, avoid occurring it is detuning, to improve the biography of wireless power transmission
Defeated efficiency.
Embodiment three
The embodiment of the present invention one discloses a kind of tunable wireless power transmission launching technique, corresponds, this hair
Bright embodiment three discloses a kind of tunable wireless power transmission emitter, as shown in Figure 2, comprising: bearing power detection
Module 1 and the adjustment of load module 2 being connect with bearing power detection module 1；
Bearing power detection module 1 loads function compared to previous moment for power section where detecting present load power
Whether power section where rate is same bearing power section；
Wherein, bearing power detection module 1 includes:
Memory module 11 is detected, present load power obtains present load power and power threshold, sentences according to power threshold
Present load power section where disconnected present load power, and, record；
Multilevel iudge module 12, power section where obtaining previous moment bearing power compare present load power section with before
Whether one moment bearing power section is same bearing power section.
Bearing power adjusts module 2, for power section where present load power compared to previous moment bearing power institute
When power section is different loads power section；Adjust driving frequency and resonant parameter.
Wherein, bearing power adjustment module 2 includes:
Main circuit control module 21 and the tuner module 22 being connect with main circuit control module 21；
Main circuit control module 21, function where the detection present load power for receiving the transmission of bearing power detection module
Rate section compared to power section where previous moment bearing power whether be same bearing power section signal, and basis signal drives
Tuner module 22.
Specifically, main circuit control module 21 is MCU (Micro Controller Unit, micro control unit).
In the embodiment of the present invention three, tuner module 22, under the driving of main circuit control module, adjustment access to be electric
The resonant capacitance matrix on road.
When resonance frequency is identical with driving frequency, the efficiency highest of Wireless power transmission system, to improve wireless
The efficiency of transmission of electrical power transmission system.
The wireless power transmission emitter that one kind disclosed in the embodiment of the present invention three is tunable, for different loads function
Rate obtains the corresponding resonant capacitance array of present load power, the resonance according to resonant capacitance array adjustment present load power
Parameter；Meanwhile obtaining the resonance frequency of present load power, the corresponding relationship tune according to preset resonance frequency and driving frequency
Whole driving frequency keeps resonance frequency consistent with driving frequency, to improve the efficiency of transmission of wireless power transmission.
Example IV
A kind of tunable radio power transmitting device disclosed in the embodiment of the present invention four, as shown in Figure 3, comprising: negative
The adjustment of load module 2 for carrying power detection module 1 and connecting with bearing power detection module 1 further includes power supply module 3, primary side
Coil module 4 and inverter circuit module 5；
2 one end of adjustment of load module connects power supply module 3, and the other end connects primary coil module 4；
5 one end of inverter circuit module connects adjustment of load module 2, and the other end connects primary coil module 4.
In the tunable wireless power transmission emitter disclosed in the embodiment of the present invention four, when load is located at difference
When power section, adjust resonant parameter and driving frequency, avoid occurring it is detuning, to improve the transmission effect of wireless power transmission
Rate.
Embodiment five
On the basis of a kind of tunable radio power transmitting device disclosed in the embodiment of the present invention four, the present invention is real
Apply example five and disclose a kind of tunable radio force transmission system, as shown in Figure 4, comprising: bearing power detection module 1 and with it is negative
Carrying the adjustment of load module 2 that power detection module 1 connects further includes power supply module 3, primary coil module 4, inverter circuit module
5；
Further include: sequentially connected secondary coil module: 6, secondary side power module 7 and load 8.
It should be noted that in the prior art, when load is located at different capacity section, reflected umpedance can be generated, caused
The variation of the inductance of primary coil module 4 and secondary coil module 6, causes the variation of resonance frequency, causes detuning, reduces wireless
The efficiency of transmission of electrical power transmission system.
The tunable Wireless power transmission system disclosed in the embodiment of the present invention five is located at different capacity section in load
When, resonant parameter is adjusted, compensation leads to the inductance variable of primary coil module 4 and secondary coil module 6, avoids losing
It is humorous, to improve the efficiency of transmission of Wireless power transmission system.
Obviously, it will be understood by those skilled in the art that each module of the above invention or each step can be with general
Computing device realizes that they can be concentrated on single computing device, or be distributed in net constituted by multiple computing devices
On network, optionally, they can be realized with the program code that computer installation can be performed, and be deposited so as to be stored in
It is performed by computing device in storage device, perhaps they are fabricated to each integrated circuit modules or will be in them
Multiple modules or step are fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware
With the combination of software.
The above is only a preferred embodiment of the present invention, is not intended to restrict the invention, to those skilled in the art,
The invention can have various changes and changes.It is all within the spirit and principles of the present invention made by any modification, equivalent replacement,
Improve etc., it should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of tunable wireless power transmission launching technique characterized by comprising
Present load power is obtained, power section is compared to power where previous moment bearing power where detection present load power
Whether section is same bearing power section；
Power section is different institutes compared to power section where the previous moment bearing power where the present load power
When stating bearing power section, adjustment accesses the resonant capacitance matrix of circuit to adjust resonance frequency, and according to adjusted described humorous
Vibration frequency adjusts driving frequency, and the driving frequency adjusted is identical as the resonance frequency.
2. the method according to claim 1, wherein the detection present load power where power section compared to
Whether power section where previous moment bearing power is that the same bearing power section includes:
The present load power and power threshold are obtained, judges to work as where the present load power according to the power threshold
Preceding bearing power section, and record；
Power section where obtaining the previous moment bearing power, the present load power section and previous moment load function
Whether rate section is the same bearing power section.
3. a kind of tunable wireless power transmission emitter, which is characterized in that including, bearing power detection module and with institute
State the adjustment of load module of bearing power detection module connection；
The bearing power detection module, for obtaining present load power, power section where detection present load power is compared
Whether the power section where previous moment bearing power is same bearing power section；
The adjustment of load module, for loading function compared to the previous moment when the present load power place power section
When power section where rate is different loads power section, the resonant capacitance matrix of adjustment access circuit to adjust resonance frequency, and according to
Driving frequency is adjusted according to the resonance frequency adjusted, the driving frequency adjusted is identical as the resonance frequency.
4. device according to claim 3, which is characterized in that the bearing power detection module includes:
Memory module is detected, present load power and power threshold is obtained, judges present load power according to the power threshold
Place present load power section, and record；
Multilevel iudge module, obtain previous moment bearing power where power section, the present load power section with it is previous
Whether moment bearing power section is same bearing power section.
5. device according to claim 3, which is characterized in that the adjustment of load module includes:
Main circuit control module and the tuner module being attached thereto, wherein
The main circuit control module is used to receive where the detection present load power that the bearing power detection module is sent
Whether power section is the signal of same bearing power section and according to the letter compared to power section where previous moment bearing power
Number driving tuner module, and
Resonant capacitance matrix of the tuner module for the adjustment access circuit under the driving of the main circuit control module.
6. device according to claim 3, which is characterized in that further include:
Power supply module, primary coil module and inverter circuit module, wherein
Adjustment of load module one end connects the power supply module, and the other end connects the primary coil module,
Inverter circuit module one end connects the adjustment of load module, and the other end connects the primary coil module.
7. a kind of tunable Wireless power transmission system characterized by comprising
Dress is received by the tunable wireless power transmission that sequentially connected secondary coil, secondary side power module and load form
It sets；And
Tunable wireless power transmission emitter as described in any one of claim 3~6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153300.9A CN104124763B (en) | 2013-04-27 | 2013-04-27 | Tunable wireless power transmission launching technique, apparatus and system |
| PCT/CN2013/080761 WO2014173034A1 (en) | 2013-04-27 | 2013-08-02 | Tunable method, device and system for emitting and transmitting wireless power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153300.9A CN104124763B (en) | 2013-04-27 | 2013-04-27 | Tunable wireless power transmission launching technique, apparatus and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104124763A CN104124763A (en) | 2014-10-29 |
| CN104124763B true CN104124763B (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310153300.9A Active CN104124763B (en) | 2013-04-27 | 2013-04-27 | Tunable wireless power transmission launching technique, apparatus and system |
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| CN (1) | CN104124763B (en) |
| WO (1) | WO2014173034A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6509450B2 (en) * | 2016-02-24 | 2019-05-08 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Wireless inductive power transfer |
| CN111224472A (en) * | 2018-11-26 | 2020-06-02 | 法雷奥舒适驾驶助手公司 | Calibration method for compensating power loss of wireless power transmission apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971452A (en) * | 2008-03-13 | 2011-02-09 | 捷通国际有限公司 | Inductive power supply system with multiple coil primary |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3520051B2 (en) * | 2001-01-26 | 2004-04-19 | 日本バルーフ株式会社 | High frequency type remote sensor controller |
| US7411371B2 (en) * | 2003-02-28 | 2008-08-12 | Arizona Public Service Company | Battery charger and method of charging a battery |
| JP5135204B2 (en) * | 2008-12-26 | 2013-02-06 | 株式会社日立製作所 | Non-contact power transmission system and load device in the non-contact power transmission system |
| US8497658B2 (en) * | 2009-01-22 | 2013-07-30 | Qualcomm Incorporated | Adaptive power control for wireless charging of devices |
| JP5459058B2 (en) * | 2009-11-09 | 2014-04-02 | 株式会社豊田自動織機 | Resonant contactless power transmission device |
-
2013
- 2013-04-27 CN CN201310153300.9A patent/CN104124763B/en active Active
- 2013-08-02 WO PCT/CN2013/080761 patent/WO2014173034A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971452A (en) * | 2008-03-13 | 2011-02-09 | 捷通国际有限公司 | Inductive power supply system with multiple coil primary |
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| Publication number | Publication date |
|---|---|
| WO2014173034A1 (en) | 2014-10-30 |
| CN104124763A (en) | 2014-10-29 |
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