CN107579601B - Wireless energy transform device - Google Patents
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Abstract
Wireless energy transform device, it includes: capacitance matrix, detection circuit, relay system, oscillator and single chip control unit, the single chip control unit, which is configured to can control oscillator, makes the working frequency scan variations of excitation power supply, can control relay system makes the intrinsic frequency scan variations of launching circuit, output voltage can be recorded and export the size and frequency of each output electric current when current in phase, the frequency of the minimum output current in each output electric current recorded can be selected, the intrinsic frequency of the working frequency and launching circuit that can also make excitation power supply is all identical as the frequency of the minimum output current.Only control device is arranged in the transmitting terminal of system in apparatus of the present invention, and the intrinsic frequency of the working frequency and launching circuit that can make excitation power supply all scan variations and dynamically track receive the intrinsic frequency in circuit, can be achieved with the resonant operational of whole system.
Description
Technical field
The present invention relates to wireless energy transmission technology field, in particular to a kind of wireless energy transform device and this kind dress
The resonance frequency control method set.
Background technique
Various electrical equipments realize the transmission of energy usually using wired connection.Make since the wireless transmission of energy has
With safe and convenient feature, realize that the wireless transmission of energy is always that people thirst for the dream realized.It is answered in some special
With place, such as underwater operation, medical embedded equipment, wireless network is inconvenient or conducting wire cannot be used to provide the occasion of energy,
Realize wireless energy transfer application value with higher.
According to energy transmission principle, currently, the wireless energy transmission technology at home and abroad studied mainly has electromagnetism wave energy
Measure transmission technology, inductive coupling type wireless energy transmission technology and resonance type wireless energy transmission technology.
Electromagnetic wave energy transmission technology is the principle sent and received using antenna, for example carries out wireless energy using microwave
Transmission, this technology can be realized high transimission power, main problem existing for the technology be in energy transmission path not
There can be barrier to block, i.e., energy transmission can not bypass or pass through barrier.
Inductive coupling type wireless energy transmission technology using loosely coupled transformer or is separated using electromagnetic induction principle
Formula transformer realizes contactless power transmission.Main problem existing for this kind of technology is energy transmission distance by transmission principle
Limitation and be limited in a millimeter grade.
Resonance type wireless electric energy transmission technology be it is a kind of make launching circuit separated by a distance and receive circuit all in
The energy transmission technology of resonant state, it is suitble to realize the transmission of wireless energy in moderate distance.Due to launching circuit and reception
Circuit is easy by various interference in actual working environment, and whole system is made to be difficult to work in resonant state, and system
It is detuning sharply to decline the efficiency of transmission for making system.
Summary of the invention
It is an object of the present invention in wireless energy transform device, it is capable of the resonance frequency of adjust automatically or control system
Rate simultaneously makes whole system work in resonant state.
In order to achieve the object of the present invention, the first aspect of the present invention is to provide for a kind of the humorous of wireless energy transform device
Vibration frequency control method, the wireless energy transform device is using the coupling of electromagnetic field from the launching circuit of transmitting terminal is located to position
Reception loop transfer energy in receiving end, which is characterized in that the resonance frequency control method includes that detection is emitted by access
The output voltage and output electric current of the excitation power supply in circuit；Make the working frequency of excitation power supply and the intrinsic frequency point of launching circuit
Do not change in first frequency region and second frequency sector scanning, wherein first frequency region and second frequency region all include
Receive third frequency field locating for the intrinsic frequency in circuit, the working frequency of excitation power supply and the intrinsic frequency point of launching circuit
It Sao Miao not first frequency region and second frequency region at least one time；Record during the scanning process the output voltage of excitation power supply with
Export the size and frequency of each output electric current that electric current is in excitation power supply detected when phase；It selects and is recorded
The frequency of minimum output current in each output electric current；Make the working frequency of excitation power supply and the intrinsic frequency of launching circuit again
It is all identical as the frequency of the minimum output current.
In actual application system, launching circuit and the circuit parameter for receiving circuit are subjected to the influence of environment and become
Change, makes launching circuit and the intrinsic frequency in reception circuit that will change, in fact, the intrinsic frequency and reception of launching circuit
The intrinsic frequency in circuit may all change in respective a certain frequency field, for example, the intrinsic frequency for receiving circuit may be
Variation in the third frequency field, therefore in actual working environment, launching circuit and reception the detuning of circuit are very
It is incidental.
Resonance frequency control method of the invention only takes control measure in the transmitting terminal of system, makes excitation power supply
Working frequency and the intrinsic frequency of launching circuit all scan variations and the intrinsic frequency in dynamically track reception circuit, to make entire
System is in resonant operational state.
And existing technology usually requires all to take control measure in transmitting terminal and receiving end, can just make at whole system
In resonant operational state；And in the application such as medical embedded equipment, taking control measure in the receiving end of system is very
Difficult, even not possible with；Therefore, resonance frequency control method of the invention only takes control in the transmitting terminal of system
Measure can be achieved with the resonant operational of system, this is technically an important breakthrough and has very high application value.
Since the frequency of the output electric current of excitation power supply is identical as the working frequency of excitation power supply, so excitation power supply is defeated
The working frequency of the frequency i.e. excitation power supply of electric current out.
Scanning first frequency region, which refers to for one time, to be scanned since the one end in first frequency region to first frequency region
The other end terminates to scan one time in this way；Equally, scanning second frequency region refers to since the one end in second frequency region for one time
The other end scanned to second frequency region terminates to scan one time in this way.
In the resonance frequency control method, first frequency region can be greater than second frequency region, first frequency area
Domain can be equal to second frequency region, and first frequency region might be less that second frequency region.
In one preferred embodiment, first frequency region includes second frequency region.It is preferred real at another
It applies in embodiment, second frequency region includes first frequency region.
In the resonance frequency control method, the intrinsic frequency of the launching circuit is in second frequency region with certain
Stepping-in amount scan variations, and intrinsic frequency one stepping-in amount of every scan variations of the launching circuit, the excitation power supply
Working frequency is scanned for first frequency region one time.
One stepping-in amount of every scan variations described here, which refers to, often increases or decreases a stepping-in amount.If stepping-in amount is
100 hertz, a stepping-in amount just represents 100 hertz, and intrinsic frequency one stepping-in amount of every scan variations refers to the every increasing of intrinsic frequency
It adds deduct 100 hertz few.
In the resonance frequency control method, the working frequency of the excitation power supply is in first frequency region with certain
Stepping-in amount scan variations, and working frequency one stepping-in amount of every scan variations of the excitation power supply, the launching circuit
Intrinsic frequency is scanned for second frequency region one time.
In the resonance frequency control method, it can make to emit by the parameter of the resonant element of control launching circuit
The intrinsic frequency scan variations in circuit.Preferably, launching circuit is made by the size of the resonant capacitance of control launching circuit
Intrinsic frequency scan variations.
In the resonance frequency control method, it is usually preparatory to receive third frequency field locating for the intrinsic frequency in circuit
Setting, and set accuracy is verified by testing, usually require that third frequency field is small as far as possible, but require to receive circuit
Intrinsic frequency can only change in third frequency field.
The second aspect of the present invention is to provide for a kind of new wireless energy transform device, and described device utilizes electromagnetic field
It couples from the launching circuit positioned at transmitting terminal to the reception loop transfer energy positioned at receiving end, which is characterized in that described device
Including, capacitance matrix, the resonant element as launching circuit；Detection circuit, for detecting by the excitation electricity of access launching circuit
The output voltage and output electric current in source；Relay system, for controlling capacitance matrix so that the intrinsic frequency of launching circuit can be swept
Retouch variation；Oscillator, for controlling the working frequency of excitation power supply；Single chip control unit, the single chip control unit quilt
It is arranged to, the frequency of oscillation that can control oscillator makes the working frequency scan variations of excitation power supply, and can control relay system makes
The intrinsic frequency scan variations of launching circuit, detection circuit when can be recorded in the output voltage and output current in phase of excitation power supply
The size and frequency of each output electric current of detected excitation power supply, can select in each output electric current recorded
The frequency of minimum output current, moreover it is possible to control oscillator and relay system makes the working frequency and launching circuit of excitation power supply
Intrinsic frequency is all identical as the frequency of the minimum output current；Wherein, the working frequency of excitation power supply and launching circuit is intrinsic
Frequency changes in first frequency region and second frequency sector scanning respectively, and first frequency region and second frequency region all include
Receive third frequency field locating for the intrinsic frequency in circuit.
The device of the invention is only arranged control device in the transmitting terminal of system, can make the working frequency of excitation power supply
The intrinsic frequency that circuit is received with the intrinsic frequency all scan variations and dynamically track of launching circuit, can be achieved with whole system
Resonant operational.And existing technology usually requires that control device is all arranged in the transmitting terminal of system and the receiving end of system, ability
Make whole system resonant operational.Therefore, the device of the invention technically has significant progress.
In the device, first frequency region can be greater than second frequency region, and first frequency region can be equal to
Second frequency region, first frequency region might be less that second frequency region.
In a preferred embodiment, first frequency region includes second frequency region.Preferably implement at another
In example, second frequency region includes first frequency region.
Preferably, the intrinsic frequency of the launching circuit in second frequency region with certain stepping-in amount scan variations, and
And intrinsic frequency one stepping-in amount of every scan variations of the launching circuit, the working frequency of the excitation power supply are scanned for first
Frequency field one time.
Preferably, the working frequency of the excitation power supply in first frequency region with certain stepping-in amount scan variations, and
And working frequency one stepping-in amount of every scan variations of the excitation power supply, the intrinsic frequency of the launching circuit are scanned for second
Frequency field one time.
In the wireless energy transform device, the intrinsic of launching circuit can be made by changing the parameter of capacitance matrix
Frequency scanning variation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wireless energy transform device of the invention.
Fig. 2 is the working frequency of excitation power supply in wireless energy transform device shown in FIG. 1, the intrinsic frequency of launching circuit
Relation schematic diagram between the intrinsic frequency in reception circuit.
Fig. 3 is the control flow schematic diagram of the resonance frequency control method of wireless energy transform device.
Fig. 4 is the control flow of another embodiment of the resonance frequency control method of wireless energy transform device.
Specific embodiment
Fig. 1 is the structural schematic diagram of wireless energy transform device of the invention, it is made of transmitting terminal and receiving end.?
In Fig. 1, transmitting terminal includes by excitation power supply, transmitting coil, transmitting capacitorAnd capacitance matrixWhat is constituted is transmitted back to
Road and the control circuit being mainly made of single chip control unit, relay system and detection circuit.Wherein, excitation power supply
Including DC power supply, by field-effect tubeWithHalf bridge circuit, driving circuit and the oscillator constituted.Receiving end includes
By receiving coil, receive capacitorAnd loadThe reception circuit constituted.
In Fig. 1, detection circuit detects the output voltage of excitation power supply respectivelyWith output electric current, it is then passed to A/D
Converter carries out analog-to-digital conversion, is finally sent in Micro-processor MCV.The control signal that Micro-processor MCV issues is connect by I/O
Mouth controls oscillator respectively and relay system carries out relevant operation.With reference to Fig. 2, single chip control unit control oscillator and after
Electric system makes the working frequency of excitation power supplyChange in first frequency sector scanning, makes the intrinsic frequency of launching circuit?
Second frequency sector scanning variation, wherein receive the intrinsic frequency in circuitIn third frequency field, first frequency region
It all include third frequency field with second frequency region.
In Fig. 1, if the electric current for flowing through launching circuit and reception circuit is respectively、, transmitting coilWith receiving coilBetween mutual inductance and distance be respectively、, excitation power supplyInternal resistance be, transmitting coilWith receiving coilElectricity
Resistance is respectively、, using Kirchhoff's second law, following formula can be obtained:
(1)
It can be solved by (1) formula:
(2)
In formula:
(3)
(4)
(5)
As can be seen that the output voltage of excitation power supply from (2) formulaWith the electric current of launching circuitWhen in same phase, have, at this moment (2) formula can be changed to
(6)
It can be seen that resistance from (4) formula and (6) formulaSize and angular frequencyIt is closely related, in the defeated of excitation power supply
Voltage outWith launching circuitIn the case where same phase, ifMaximum value is obtained, at this momentObtain minimum value.
It enables, can be obtainedWhen obtaining maximum value,Following formula should be met:
(7)
In formulaFor the quality factor for receiving circuit, it meets following formula:
(8)
Due in actual application system, quality factorTypically much deeper than 1, at this moment (7) formula is variable are as follows:
(9)
At this moment above formula explanation receives circuit will be in resonant state.(9) formula is substituted into (5) formula and applies relationship,
It is available:
(10)
At this moment launching circuit is also at resonant state to above formula explanation.
Therefore, in heightIn the application system of value, in the output voltage of excitation power supplyWith the electric current of launching circuitIt is in
In the case where with phase,When obtaining minimum value, launching circuit and it is received back road and lies substantially in resonant state.Here it is the present invention
The theoretical foundation that is only controlled in transmitting terminal of resonance frequency control technology.
Fig. 2 shows the working frequency of the excitation power supply of the present embodiment, launching circuit intrinsic frequencyWith reception circuit
Intrinsic frequencyCorrelation between three.It will be clear that the working frequency of excitation power supply in Fig. 2Sweep
Range is retouched to existExtremelyBetween, the intrinsic frequency of launching circuitScanning range existExtremelyBetween, receive the intrinsic of circuit
FrequencyIt can beExtremelyBetween change, whereinScanning range includeThe entire frequency range that may change,Scanning
Range includesScanning range.
In the present embodiment, the intrinsic frequency of launching circuitIt is 100 hertz in second frequency region with stepping-in amount to scan
Variation, and every 100 hertz of the variation of intrinsic frequency of launching circuit, the working frequency of excitation power supplyIt is scanned for first frequency area
Domain one time.If the intrinsic frequency of launching circuitFrom frequencyIt scans to frequencyStepping n times are needed, that is, change N number of 100 hertz
Hereby, then the working frequency of excitation power supplyFirst frequency region is scanned for N times, in this way when the intrinsic frequency of launching circuitFrom
FrequencyIt scans to frequency, the working frequency of excitation power supplyScan through first frequency region N all over when, excitation power supply it is defeated
Voltage and output electric current just have n times to be in cophasal state out, if being recorded in the output electricity of excitation power supply in this scanning process
It presses and is in the size and frequency of N number of output electric current with excitation power supply detected when phase with output electric current, and select institute
The frequency of minimum output current in N number of output electric current of record, then control oscillator and relay system and make excitation power supply
Working frequencyWith the intrinsic frequency of launching circuitAll identical as the frequency of the minimum output current, such whole system will be located
In resonant state.
Fig. 3 is the control flow schematic diagram of the resonance frequency control method of wireless energy transform device of the invention.In Fig. 3
In it can be seen that, the resonance frequency control method include: detection by the output voltage of the excitation power supply of access launching circuitWith
Export electric current；Make the working frequency of excitation power supplyWith the intrinsic frequency of launching circuitRespectively in first frequency region and
Two frequency field scan variations, and make the working frequency of excitation power supplyWith the intrinsic frequency of launching circuitFirst is scanned respectively
Frequency field and second frequency region at least one time, wherein first frequency region and second frequency region all include receiving circuit
Intrinsic frequencyLocating third frequency field；Record the output voltage of excitation power supply during the scanning processWith output electric currentThe size and frequency of each output electric current of detected excitation power supply when in same phase；Select recorded it is each defeated
The frequency of minimum output current in electric current out；Make the working frequency of excitation power supply againWith the intrinsic frequency of launching circuit
All with the frequency of the minimum output currentIt is identical.
Fig. 4 shows the control stream of the another embodiment of the resonance frequency control method of wireless energy transform device
Journey.In this embodiment, resonance frequency control method includes: system initialization, is parameter、、、Assignment respectively、, 0,0, wherein、The respectively low-limit frequency in first frequency region and second frequency region；Control oscillator makes to motivate
The working frequency of power supplyWork in the low-limit frequency in first frequency region, the capacitance matrix for controlling launching circuit makes its transmitting
The intrinsic frequency in circuitWork in the low-limit frequency in second frequency region；Detection is by the excitation power supply of access launching circuit
Output voltageWith output electric current；To parameterWhether it is greater than 0 to be judged, to output voltageWith output electric currentWhether
It is same mutually to be judged；When the intrinsic frequency of launching circuit works in the low-limit frequency in second frequency region, the work of excitation power supply
Working frequencyWith stepping-in amountLow-limit frequency from first frequency regionIt scans to the highest frequency in first frequency region,
Intrinsic frequencyOne stepping-in amount of every increase, the working frequency of excitation power supplyWith stepping-in amountScan first frequency region
One time, when the intrinsic frequency of launching circuit is scanned to the highest frequency in second frequency regionAnd the work frequency of excitation power supply
Rate is also scanned to the highest frequency in first frequency regionAfterwards, scanning temporarily ceases, and is recorded in defeated in above-mentioned scanning process
Voltage outWith output electric currentThe size and frequency of each output electric current when in same phase；Select recorded it is each defeated
Minimum current in electric current outFrequency；The intrinsic frequency of the working frequency and launching circuit that make excitation power supply again all with
Minimum currentFrequencyIt is identical, and to parameterIncrease by 1, so as to subsequent control.In this embodiment, resonance frequency
It further include the size and frequency for emptying each output electric current recorded in control method, to save memory space；To in operation
Whether the ratio between the offset of detected output electric current and original output electric current are greater thanJudged, parameter hereIt can
To be set as needed, such asIt can be set to, if it is determined that condition is invalid, system is with originally selected minimum
The frequency of electric current works, if it is determined that condition is set up, process as described above is selected to the frequency of new minimum current again
Rate, and make excitation power supply working frequency and launching circuit intrinsic frequency it is identical as the frequency of new minimum current.
While there has been shown and described that it is presently considered to be preferred the embodiment of the present invention, but it will be apparent that this field
Technical staff can carry out various changes and improvement.And these are altered or modified, and belong to the appended claims and are limited
The scope of the present invention.
Claims (2)
1. a kind of wireless energy transform device, described device is using the coupling of electromagnetic field from the launching circuit of transmitting terminal is located to position
Reception loop transfer energy in receiving end, which is characterized in that described device includes: capacitance matrix, as the humorous of launching circuit
Shake element；Detection circuit, for detecting by the output voltage of the excitation power supply of access launching circuit and output electric current；Relay system
System, for control capacitance matrix so that launching circuit intrinsic frequency energy scan variations；Oscillator, for controlling excitation power supply
Working frequency；Single chip control unit, the single chip control unit are configured to, and the frequency of oscillation that can control oscillator makes to swash
The working frequency scan variations for encouraging power supply, can control relay system makes the intrinsic frequency scan variations of launching circuit, can record
Each output electric current of excitation power supply detected by detection circuit in the output voltage and output current in phase of excitation power supply
Size and frequency, the frequency of the minimum output current in each output electric current recorded can be selected, moreover it is possible to control oscillation
Device and relay system make excitation power supply working frequency and launching circuit intrinsic frequency all with the frequency of the minimum output current
Rate is identical；Wherein, the working frequency of excitation power supply and the intrinsic frequency of launching circuit are respectively in first frequency region and the second frequency
The variation of rate sector scanning, first frequency region and second frequency region all include receiving the frequency of third locating for the intrinsic frequency in circuit
Rate region, the working frequency of the excitation power supply with certain stepping-in amount scan variations, and described swash in first frequency region
Working frequency one stepping-in amount of every scan variations of power supply is encouraged, the intrinsic frequency of the launching circuit is scanned for second frequency region
One time.
2. device as described in claim 1, which is characterized in that make consolidating for launching circuit by changing the parameter of capacitance matrix
There is frequency scanning to change.
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| CN201711087634.5A CN107579601B (en) | 2014-07-07 | 2014-07-07 | Wireless energy transform device |
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| CN201711087634.5A CN107579601B (en) | 2014-07-07 | 2014-07-07 | Wireless energy transform device |
| CN201410319501.6A CN105305642B (en) | 2014-07-07 | 2014-07-07 | The resonant frequency control method of wireless energy transform device and this kind of device |
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| CN107046330A (en) * | 2016-02-08 | 2017-08-15 | 松下电器产业株式会社 | Signal generating apparatus |
| CN105978169B (en) * | 2016-04-05 | 2018-10-23 | 西南交通大学 | A kind of dynamic tuning method of wireless power transmission equipment transmitting terminal frequency-tracking |
| CN106037269B (en) * | 2016-05-30 | 2018-10-09 | 华南理工大学 | Intelligent heat preserving table arrangement and its working method based on magnetic resonance wireless energy transfer |
| CN106404210B (en) * | 2016-12-08 | 2023-10-20 | 广东中实源创科技有限公司 | Temperature measuring method and device and product using same |
| CN109962531B (en) * | 2017-12-26 | 2021-02-12 | 北京万集科技股份有限公司 | Laser radar wireless power supply control method and laser radar device |
| CN110350670B (en) * | 2019-05-29 | 2022-05-17 | 北京航空航天大学 | Universal wireless charging transmitting terminal device and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316053A (en) * | 2008-06-04 | 2008-12-03 | 哈尔滨工业大学 | Magnetic coupling resonance vibration type wireless energy transform device |
| CN103199634A (en) * | 2013-03-01 | 2013-07-10 | 西安理工大学 | Magnetic coupling resonant type wireless power transmission phase control capacitance tuning device |
| CN103457362A (en) * | 2012-06-04 | 2013-12-18 | 比亚迪股份有限公司 | Wireless charging sending device, wireless charging system and wireless charging control method |
Family Cites Families (4)
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|---|---|---|---|---|
| CN102315692B (en) * | 2010-06-29 | 2013-09-18 | 富达通科技股份有限公司 | Power supply transmission method of high-power wireless induction type power supplier |
| US8310202B2 (en) * | 2010-08-17 | 2012-11-13 | Ut-Battelle, Llc | Off-resonance frequency operation for power transfer in a loosely coupled air core transformer |
| CN102290873A (en) * | 2011-08-22 | 2011-12-21 | 重庆大学 | Frequency stabilizing circuit for non-contact energy transmission system |
| JP5997456B2 (en) * | 2012-02-17 | 2016-09-28 | 学校法人慶應義塾 | Wireless power feeder |
-
2014
- 2014-07-07 CN CN201410319501.6A patent/CN105305642B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316053A (en) * | 2008-06-04 | 2008-12-03 | 哈尔滨工业大学 | Magnetic coupling resonance vibration type wireless energy transform device |
| CN103457362A (en) * | 2012-06-04 | 2013-12-18 | 比亚迪股份有限公司 | Wireless charging sending device, wireless charging system and wireless charging control method |
| CN103199634A (en) * | 2013-03-01 | 2013-07-10 | 西安理工大学 | Magnetic coupling resonant type wireless power transmission phase control capacitance tuning device |
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| CN105305642A (en) | 2016-02-03 |
| CN105305642B (en) | 2017-12-15 |
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Effective date of registration: 20200114 Address after: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 555 Patentee after: Zhejiang Police College Address before: 310052 Hangzhou City, Binjiang District Province, No., Shing Road, Garden Court, building 2, room 3, unit 1402, room 3191 Patentee before: Xu Jiqiong |