CN109969008A - The mutual inductance estimation technique and system based on AC/DC converter multi-source wireless charging - Google Patents
The mutual inductance estimation technique and system based on AC/DC converter multi-source wireless charging Download PDFInfo
- Publication number
- CN109969008A CN109969008A CN201910172598.5A CN201910172598A CN109969008A CN 109969008 A CN109969008 A CN 109969008A CN 201910172598 A CN201910172598 A CN 201910172598A CN 109969008 A CN109969008 A CN 109969008A
- Authority
- CN
- China
- Prior art keywords
- transmitting coil
- coil
- current
- mutual inductance
- pressure regulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
Disclosed herein is a kind of mutual inductance estimations technique and system based on AC/DC converter multi-source wireless charging, the coil that transmitting coil possesses identical resonance frequency by n forms, each transmitting coil has an independent alternating-current voltage source to provide electric energy, and each voltage source can generate the alternating current of any amplitude and phase；One MOS switch pipe is housed, for voltage source to connect or cut off with transmitting coil on each transmitting coil；Voltage/current detection probe is equipped on each transmitting coil, for monitoring the value of the voltage/current on each transmitting coil in real time；The resonance frequency of receiving coil is identical as transmitting coil；Receiving coil connects with a two-way AC/DC pressure regulation converter, then connect again with battery pack.The advantage of this system be it is quick, accurate and it is safe estimation is made to the mutual inductance transmitted/received between coil so that multi-emitting end/mono- receiving end wireless charging system to electric vehicle efficiently be charged in order to may.
Description
Technical field
The present invention relates to the static wireless charging field of electric car, can be used for more particularly to a kind of to pure in static
The mutual inductance estimation technique and system of electric car progress wireless charging.
Background technique
In existing pure electric automobile wireless charging technology, usually single transmitting coil is fixedly mounted on ground parking position
On, electric car must accurately be parked in specified position, make at the receiving coil on electric automobile chassis and the transmitting coil on ground
It just can be carried out charging behind face position.However this one-to-one wireless charging system is very quick between the relative position coil
Sense.When two coil not coaxial faces, transimission power and efficiency of transmission will all have a greatly reduced quality.
Therefore more and more wireless systems begin to use multiple transmitting coils for receiving coil power supply.Multiple coils
Collective effect makes the power of transmission have the possibility being sharply increased, but also makes to transmit/receive the coupling condition between coil and become multiple
Miscellaneous (can also generate and be mutually coupled between such as multiple transmitting coils).In order to which the electromagnetic wave for issuing all transmitting coils is receiving
Energy Downward addition enhancing on coil, then the mutual inductance between each transmitting coil and receiving coil must first be calculated, then
The optimal drive voltage amplitude and phase of each transmitting coil are obtained by certain algorithm with the mutual inductance obtained again, so that passing
Defeated system power reaches maximum.There are two types of the mutual inductance estimation modes of mainstream: first is that use experience formula is calculated, but this meter
Calculating formula is usually to obtain in ecotopia, therefore error when practical application is very big；Second is that by complicated detection and leading to
All power information in transmitting coil and receiving coil are collected, then are calculated by letter system.Although this calculating is more
Accurately, but the structure of wireless transmitting system is become more complicated, increases failure rate, be also unfavorable for minimizing.
Meanwhile traditional mutual inductance estimation mode be all be powered to generating electromagnetic wave using transmitting coil, then to receiving coil into
Row coupling, calculates mutual inductance finally by the relationship of coupling.However, the internal resistance very little of transmitting coil, owes coupling between transmitting/receiving coil
When conjunction, even if the voltage for loading very little on transmitting coil is also possible to generate very big electric current, transmitting coil is caused to overload, generated
Security risk.In automobile wireless charging, when automobile is far from charge position, transmitting coil is in light condition, transmits/receives coil
It is now in zero couple state, at this time if transmitting coil driving voltage is blindly added, overload current will be generated, burn out electricity
Road causes safety accident.
Summary of the invention
1, the purpose of the present invention
For overcome the deficiencies in the prior art, the invention discloses one kind to be based on two-way AC/DC pressure regulation converter multi-emitting
End/mono- receiving end wireless charging system and the corresponding mutual inductance estimation technique.
2, the technical solution adopted in the present invention
Mutual inductance estimating system proposed by the present invention based on AC/DC converter multi-source wireless charging, transmitting coil are gathered around by n
It is made of the coil of identical resonance frequency, each transmitting coil has an independent alternating-current voltage source to provide electric energy, Mei Ge electricity
Potential source can generate the alternating current of any amplitude and phase；One MOS switch pipe is housed, being used for will be electric on each transmitting coil
Potential source connect or cuts off with transmitting coil；
Voltage/current detection probe is equipped on each transmitting coil, for monitoring in real time on each transmitting coil
The value of voltage/current；The resonance frequency of receiving coil is identical as transmitting coil；Receiving coil and a two-way AC/DC pressure regulation become
Parallel operation connects, and then connect again with battery pack；
AC/DC pressure regulation converter includes two parts composition:
First part is the two-way AC/DC pressure regulation converter of four bridge legs, and each bridge arm is reversely coupled by two IGBT switching tubes
It constitutes, the rectification and inversion of electric current is realized by controlling different IGBT switching tubes；
Second part is the Buck-Boost chopper circuit of bidirectionally conductive, which can be by pwm signal in circuit
The control of switching tube carries out Bidirectional up-down buckling and changes；Two-way AC/DC pressure regulation converter is divided into two kinds of operating modes:
Rectification mode, direction of energy flow is from left to right；Inverter mode, direction of energy flow is from right to left；Battery pack and Buck-
The connection of Boost chopper circuit, in different modes, battery pack both can receive the energy that front stage circuits transmit and filled
Electricity can also be that transmitting coil reversely provides exciting current by two-way AC/DC pressure regulation converter.
Further, the alternating-current voltage source of each transmitting coil is independent control, and each voltage source can
To generate the alternating current of any amplitude and phase.
Further, switching rectification mould is realized by controlling IGBT switching tube different in two-way AD/DC pressure regulation converter
Formula and inverter mode；The double of voltage are realized by the opening/closing time that pwm signal controls the switching tube of Buck-Boost chopper circuit
To transformation.
Further, two-way AC/DC pressure regulation converter for receiving coil provides the size of driving current not when inverter mode
The maximum current that can be carried more than receiving coil.
The invention proposes a kind of mutual inductance estimations technique based on AC/DC converter multi-source wireless charging, in accordance with the following steps
It carries out:
Metal-oxide-semiconductor disconnection on transmitting coil is made transmitting coil open a way by step 1, i.e. disconnection transmitting coil switching tube QT1…
QT5；
Step 2 goes out alternating current by the two-way reversed inversion of AC/DC pressure regulation converter using the battery pack of receiving end, i.e.,
Control and receive coil Q3、Q4、Q5、Q7、Q9Into inverter mode；
Step 3, inversion generate exchange electric excitation receiving coil and generate alternating electromagnetic field and couple with transmitting coil, i.e., from electricity
Pond group obtains electric energy and carries out providing alternating current I identical with receiving coil resonance frequency for receiving coil after pressure regulation inversionE；
At this point, receiving coil is by electric current IEExcitation surrounding space formed alternating electromagnetic field；
Step 4, transmitting coil generate induced electromotive force V ' in electromagnetic fieldi, while the size of the electromotive force is by voltage/electricity
Stream detection probe is obtained, i.e., carries out simultaneous solution to the electrical information in two coils using kirchhoff electricity equation
The mutual inductance of each transmitting coil and receiving coil is obtained, that is, utilizes V 'i=j ω MiIE(1≤i≤n), estimates mutual inductance, due to connecing
Alternating current I in take-up circleEIt is got by AC/DC pressure regulation convertor controls inversion, therefore electric current IEFor known quantity；Each transmitting
The induced electromotive force V ' of coiliIt can be popped one's head in and be measured by voltage/current detection.Therefore between each transmitting coil and receiving coil
Mutual inductance MiIt can be obtained by following equation:
Transmitting coil is disconnected, i.e. disconnection Q3、Q4、Q5、Q7, there is no electric current in transmitting coil, avoid electric current is excessive from causing to overload
Risk；
It avoids blindly being closed the overload risk that transmitting coil switching tube may cause under electromagnetic coupling state.When system is cut
After changing transmission of status into, it can be carried out using amplitude, phase of the mutual inductance acquired to the driving voltage of each transmitting coil
Configuration reaches maximum power and most so that the electromagnetic wave that generates of all transmitting coils Downward addition at receiving coil enhances
Big efficiency wireless charging；
Then step 5 controls two-way AC/DC pressure regulation converter conducting Q1、Q2、Q6、Q8, receiving end enters rectification mode；
Step 6, closure transmitting coil switch QT1…QT5；
Step 7 utilizes the mutual inductance M acquiredi, transmitting coil voltage is configured, transmission is optimal；
Step 8, mutual inductance estimation are completed to start to charge.
3, beneficial effects of the present invention
(1) present invention estimates mutual inductance without using empirical equation and any additional electronic equipment, not only estimation procedure
It is simple and reliable, the mutual inductance value between all transmitting coils and receiving coil can be estimated next time in any working environment, and
Obtained mutual inductance value accuracy is high.
(2) mutual inductance estimation of the present invention emits electromagnetic wave using receiving coil, so that there was only induced electromotive force in transmitting coil
Without induced current, the risk of transmitting coil current overload in undercoupling is avoided.
(3) present invention due on transmitting coil electric current be zero, so will not be generated between transmitting coil electromagnetic coupling interference.
So that the estimation of mutual inductance is easier, accurate between transmitting coil and receiving coil.
(4) present invention is energy saving.In traditional wireless charging, whether no matter coupling, transmitting coil is in work always
State, therefore cause the waste of energy.In method disclosed by the invention, transmitting coil is by the electromagnetism from receiving coil
Incude before starting, is in an off state always.It only just will start when receiving coil needs to charge, reach energy saving
Effect.
Detailed description of the invention
Fig. 1 is multi-emitting coil/single receiving line circle wireless charging circuit diagram；
Fig. 2 is multi-emitting coil/single receiving line circle wireless charging system relative position schematic diagram；
Fig. 3 be under mutual inductance estimated state, on transmitting coil with the waveform of voltage on receiving coil；
Fig. 4 be under mutual inductance estimated state, on transmitting coil with the waveform of electric current on receiving coil；
Fig. 5 is operational flowchart.
Specific embodiment
The following further describes the present invention with reference to the drawings.
Mutual inductance is the core parameter of wireless charging system, and the present invention is connecing for the electromagnetic wave for emitting multiple transmitting coils
Downward addition enhances at take-up circle, and then reaches optimal transmission power, first must accurately calculate each transmitting coil and receive line
Mutual inductance between circle.Meanwhile in order to avoid the risk that current overload occurs for transmitting coil, the present invention utilizes two-way AC/DC pressure regulation
Converter driving receiving coil establishes electromagnetic field, and couples with the generation of the transmitting coil of all open circuits, eventually by transmitting coil
Upper induced electromotive force calculates mutual inductance.Since transmitting coil is in an off state, only induced electromotive force, and no current, it avoids
The risk of overload.
Metal-oxide-semiconductor disconnection on transmitting coil is first made transmitting coil open a way by the present invention, recycles the battery pack of receiving end logical
It crosses the two-way reversed inversion of AC/DC pressure regulation converter and goes out alternating current, to drive receiving coil to generate alternating electromagnetic field, with transmitting
Coil coupling.Transmitting coil generates induced electromotive force in electromagnetic field, while the size of the electromotive force is visited by voltage/current detection
Needle is obtained.Since transmitting coil disconnects, there is no electric current in transmitting coil at this time, avoids the excessive risk for leading to overload of electric current.
Simultaneous solution is carried out to the electrical information in two coils using kirchhoff electricity equation, each transmitting coil can be obtained and connect
The mutual inductance of take-up circle.Then controlling two-way AC/DC pressure regulation converter makes receiving end become rectification mode, recloses transmitting coil and opens
It closes, system is made to enter electric energy transmission state.
Mutual inductance estimating system proposed by the present invention based on AC/DC converter multi-source wireless charging, as shown in Figure 1, transmitting
Coil is made of 5 coils.Each transmitting coil has an independent alternating-current voltage source (V1…V5) be powered, it can be with
Generate the alternating current of any amplitude and phase.Inductance (L in transmitting coil1…L5) and capacitor (C1…C5) composition resonant body, resonance
Angular frequency is ω (ω=100kHz).One MOS switch pipe (Q is housed on each transmitting coilT1…QT5), for connect or
Disconnect the access of transmitting coil and power supply；Meanwhile voltage/current detection probe is equipped on each transmitting coil, for real-time
Monitor the value of the voltage/current on each transmitting coil.Mutual inductance between transmitting coil and receiving coil is denoted as (Mi)。
Receiving coil is inductance (L6) and capacitor (C6) resonant tank is formed, resonance angular frequency is similarly (ω=100kHz).
Coil is connect with two-way AC/DC pressure regulation converter.Two-way AC/DC pressure regulation converter consists of two parts: first part is four bridges
The two-way AC/DC pressure regulation converter of arm, each bridge arm is reversely coupled by two IGBT switching tubes to be constituted, by controlling different IGBT's
Opening/closing time realizes the rectification of electric current and the switching of inverter mode；Second part is the Buck-Boost copped wave electricity of bidirectionally conductive
Road, the circuit can carry out Bidirectional up-down buckling to the control of switching tube in circuit by pwm signal and change.Two-way AC/DC pressure regulation
Converter is divided into two kinds of operating modes: rectification mode (direction of energy flow is from left to right) and inverter mode (direction of energy flow from the right side to
It is left).Battery pack is connect with Buck-Boost chopper circuit, the battery pack both can receive energy that front stage circuits transmit into
Row charging can also be that transmitting coil reversely provides exciting current by two-way AC/DC pressure regulation converter.
As shown in Fig. 2, in the same plane by 5 transmitting coil (Tx) installations, receiving coil (Rx) is parallel to transmitting
Coil and distance are 20 centimetres.Transmitting coil may be at any position in darkened boxes.
Fig. 5 is that flow chart describes the rate-determining steps of entire mutual inductance estimation, is carried out in accordance with the following steps:
Step 1, when wireless charging starts, first by the MOS switch pipe (Q on all transmitting coilsT1…QT5) disconnect, make
Obtain transmitting coil open circuit.
Step 2, by controlling and receiving Q in coil3、Q4、Q5、Q7And Q9Opening and closing make two-way AC/DC pressure regulation converter work
Make in reversed inverter mode (Q9It controls Buck-Boost circuit and pressure regulation, Q is carried out to the direct current in battery pack3、Q4、Q5、Q7It exchanges
Direct current after pressure carries out inversion).
It is I that step 3, two-way AC/DC pressure regulation converter will provide size for receiving coilE, frequency is the exchange of 100kHz
Electric current.Again under the excitation of alternating current, transmitting coil generates the alternating electromagnetic field that frequency is similarly 100kHz around it.
Step 4, the transmitting coil being in alternating electromagnetic field will generate induced electromotive force under the action of electromagnetic induction
(V′i...V′5).But due to the switch (Q of transmitting coilT1…QT5) be in an off state, so there is no electric current in transmitting coil
(I1=...=I5=0), only induced electromotive force (V '1...V′5).Under relative position as shown in Figure 2, each transmitting coil
As shown in Figure 3 with the voltage magnitude of receiving coil and waveform: it can be seen that voltage-phase on all transmitting coils and receiving line
90 degree of the voltage phase difference of circle, while the virtual value of voltage can be measured by voltage probe.Electric current is on transmitting coil shown in Fig. 4
Zero.The electrical relation between transmitting coil and receiving coil can be expressed by Kirchhoff's equation at this time:
V′i=j ω MiIE(1≤i≤5)
Due to the alternating current I in receiving coilE(I in this exampleE=2.88A) by two-way AC/DC pressure regulation converter inversion
It generates, by the control of switching tube, therefore current value is known quantity；The induced electromotive force V ' of each transmitting coiliIt can be by electricity
Pressure/current detecting probe measures.Therefore the mutual inductance M between each transmitting coil and receiving coiliIt can be obtained by above-mentioned equation group:
After transmitting/receiving the mutual inductance between coil under measuring current state, mutual inductance estimation procedure terminates, control switch pipe make be
System enters electric energy wireless transmission state:
Step 5 disconnects Q3、Q4、Q5、Q7And Q is connected1、Q2、Q6、Q8, become the AC/DC pressure regulation converter in receiving coil
Rectification mode；
All transmitting coil switching tube (Q are connected in step 6 againT1…QT5)。
Step 7, the mutual inductance acquired configure amplitude, the phase of the driving voltage of each transmitting coil, so that all
The electromagnetic wave that transmitting coil generates Downward addition at receiving coil enhances, and reaches maximum power or maximal efficiency wireless charging
Purpose.
Claims (5)
1. a kind of mutual inductance estimating system based on AC/DC converter multi-source wireless charging, it is characterised in that: transmitting coil is by n
Possess the coil composition of identical resonance frequency, each transmitting coil has an independent alternating-current voltage source to provide electric energy, each
Voltage source can generate the alternating current of any amplitude and phase；One MOS switch pipe is housed, being used for will on each transmitting coil
Voltage source connect or cuts off with transmitting coil；Voltage/current detection probe is equipped on each transmitting coil, for real-time
Monitor the value of the voltage/current on each transmitting coil；The resonance frequency of receiving coil is identical as transmitting coil；Receiving coil with
One two-way AC/DC pressure regulation converter connects, and then connect again with battery pack；
AC/DC pressure regulation converter includes two parts composition:
First part is the two-way AC/DC pressure regulation converter of four bridge legs, and each bridge arm is reversely coupled by two IGBT switching tubes to be constituted,
The rectification and inversion of electric current are realized by controlling different IGBT switching tubes；
Second part is the Buck-Boost chopper circuit of bidirectionally conductive, which can be by pwm signal to switching in circuit
The control of pipe carries out Bidirectional up-down buckling and changes；Two-way AC/DC pressure regulation converter is divided into two kinds of operating modes: rectification mode, can flow
Direction is from left to right；Inverter mode, direction of energy flow is from right to left；Battery pack is connect with Buck-Boost chopper circuit, in difference
Under mode, battery pack both can receive the energy that front stage circuits transmit and charge, and can also pass through two-way AC/DC pressure regulation
Converter is that transmitting coil reversely provides exciting current.
2. mutual inductance estimating system according to claim 1, it is characterised in that: the alternating voltage of each transmitting coil
Source is independent control, and each voltage source can generate the alternating current of any amplitude and phase.
3. mutual inductance estimating system according to claim 1, it is characterised in that: by controlling two-way AD/DC pressure regulation converter
Middle different IGBT switching tube realizes switching rectification mode and inverter mode；Buck-Boost copped wave electricity is controlled by pwm signal
The opening/closing time of the switching tube on road realizes the two-way changing of voltage.
4. mutual inductance estimating system according to claim 1, it is characterised in that: two-way AC/DC pressure regulation transformation when inverter mode
Device is receiving coil, and the size for providing driving current is no more than the maximum current that receiving coil can carry.
5. it is a kind of using any mutual inductance estimation technique based on AC/DC converter multi-source wireless charging of claim 1-4,
It is characterized in that:
Metal-oxide-semiconductor disconnection on transmitting coil is made transmitting coil open a way by step 1；
Step 2 goes out alternating current by the two-way reversed inversion of AC/DC pressure regulation converter using the battery pack of receiving end；
Step 3, inversion generate exchange electric excitation receiving coil and generate alternating electromagnetic field and couple with transmitting coil, i.e., from battery pack
It obtains electric energy and carries out providing alternating current I identical with receiving coil resonance frequency for receiving coil after pressure regulation inversionE；This
When, receiving coil is by electric current IEExcitation surrounding space formed alternating electromagnetic field；
Step 4, transmitting coil generate induced electromotive force V ' in electromagnetic fieldi, while the size of the electromotive force is examined by voltage/current
Probing needle is obtained, i.e., carries out simultaneous solution to the electrical information in two coils using kirchhoff electricity equation, can be obtained
The mutual inductance of each transmitting coil and receiving coil, that is, utilize
V′i=j ω MiIE(1≤i≤n)
Mutual inductance is estimated, due to the alternating current I in receiving coilEIt is got by AC/DC pressure regulation convertor controls inversion, therefore electricity
Flow IEFor known quantity；The induced electromotive force V ' of each transmitting coiliIt can be popped one's head in and be measured by voltage/current detection；Therefore each hair
Mutual inductance M between ray circle and receiving coiliIt can be obtained by following equation:
Transmitting coil is disconnected, does not have electric current in transmitting coil, avoids the excessive risk for leading to overload of electric current；
Then step 5 controls two-way AC/DC pressure regulation converter conducting receiving end and enters rectification mode；
Step 6, closure transmitting coil switch；
Step 7 utilizes the mutual inductance M acquiredi, transmitting coil voltage is configured, transmission is optimal；
Step 8, mutual inductance estimation are completed to start to charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172598.5A CN109969008B (en) | 2019-03-07 | 2019-03-07 | Mutual inductance estimation method and system based on AC/DC converter multi-source wireless charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172598.5A CN109969008B (en) | 2019-03-07 | 2019-03-07 | Mutual inductance estimation method and system based on AC/DC converter multi-source wireless charging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109969008A true CN109969008A (en) | 2019-07-05 |
| CN109969008B CN109969008B (en) | 2021-02-05 |
Family
ID=67078268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910172598.5A Active CN109969008B (en) | 2019-03-07 | 2019-03-07 | Mutual inductance estimation method and system based on AC/DC converter multi-source wireless charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109969008B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549883A (en) * | 2019-08-30 | 2019-12-10 | 中兴新能源汽车有限责任公司 | Wireless charging state detection method, wireless charging pile and readable storage medium |
| CN111585331A (en) * | 2020-06-10 | 2020-08-25 | 常熟理工学院 | Multi-input/single-output wireless charging system, corresponding beam forming control method and multi-element wireless charging system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016191999A1 (en) * | 2015-06-01 | 2016-12-08 | The University Of Hong Kong | Fast method for identifying coil misalignment/mutualcoupling in wireless charging systems |
| CN106828174A (en) * | 2017-03-13 | 2017-06-13 | 西南交通大学 | A kind of enhanced wireless charging system in multi-emitting source |
| CN108616167A (en) * | 2018-04-09 | 2018-10-02 | 哈尔滨理工大学 | A kind of wireless pressure-adjustable charging system |
| CN109383315A (en) * | 2018-11-14 | 2019-02-26 | 常熟理工学院 | To multi-emitting end/mono- receiving end wireless charging system mutual inductance estimation method |
-
2019
- 2019-03-07 CN CN201910172598.5A patent/CN109969008B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016191999A1 (en) * | 2015-06-01 | 2016-12-08 | The University Of Hong Kong | Fast method for identifying coil misalignment/mutualcoupling in wireless charging systems |
| CN106828174A (en) * | 2017-03-13 | 2017-06-13 | 西南交通大学 | A kind of enhanced wireless charging system in multi-emitting source |
| CN108616167A (en) * | 2018-04-09 | 2018-10-02 | 哈尔滨理工大学 | A kind of wireless pressure-adjustable charging system |
| CN109383315A (en) * | 2018-11-14 | 2019-02-26 | 常熟理工学院 | To multi-emitting end/mono- receiving end wireless charging system mutual inductance estimation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549883A (en) * | 2019-08-30 | 2019-12-10 | 中兴新能源汽车有限责任公司 | Wireless charging state detection method, wireless charging pile and readable storage medium |
| CN111585331A (en) * | 2020-06-10 | 2020-08-25 | 常熟理工学院 | Multi-input/single-output wireless charging system, corresponding beam forming control method and multi-element wireless charging system |
| CN111585331B (en) * | 2020-06-10 | 2021-11-23 | 常熟理工学院 | Wireless charging system, beam forming control method thereof and multi-element wireless charging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109969008B (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9963040B2 (en) | Non-contact power supply system, and power transmission device and vehicle used therein | |
| CN103563216B (en) | Contactless power supply device | |
| EP2810814B1 (en) | Vehicle power receiving device, power supply equipment and electrical power transmission system | |
| JP5664544B2 (en) | Non-contact power receiving device and non-contact charging system | |
| CN102195328B (en) | To the system and method that energy-storage system that is electronic or Hybrid Electrical Vehicle (HEV) charges | |
| US9735625B2 (en) | Electric power transmission device, electric power reception device, vehicle, and non-contact electric power feed system | |
| US9469209B2 (en) | Vehicular power reception device and vehicle equipped with the same, power supply apparatus, and electric power transmission system | |
| US20100295506A1 (en) | Noncontact power receiving apparatus and vehicle including the same | |
| CN201594757U (en) | Vehicular charging device | |
| EP2395624A1 (en) | Charging system for vehicle | |
| JPWO2012073349A1 (en) | Non-contact power supply facility, vehicle, and control method for non-contact power supply system | |
| CN102197566A (en) | Contactless power receiving device, contactless power transmitting device, contactless power supply system, and vehicle | |
| KR20140084369A (en) | An all in one onboard battery charger for electric vehicle, electric vehicle having the function of the charge, and the system and method for controlling a battery charger for electric vehicle including the on board battery charger | |
| CN108448740B (en) | Dynamic wireless energy transmission circuit system and primary side multi-coil real-time switching method thereof | |
| CN111123133B (en) | Non-contact power battery impedance measuring and charging device | |
| CN109383315A (en) | To multi-emitting end/mono- receiving end wireless charging system mutual inductance estimation method | |
| CN109969008A (en) | The mutual inductance estimation technique and system based on AC/DC converter multi-source wireless charging | |
| US20160114688A1 (en) | Power feed device and method for acquisition of frequency characteristics | |
| CN110103739A (en) | Weak magnetic field excitation three-winding detection device | |
| CN112072765A (en) | Hybrid charging system based on minimum apparent power module and design method | |
| CN110962633B (en) | Low-voltage high-current wireless charging system and method | |
| CN111864920A (en) | Transformer substation inspection robot, wireless charging room, wireless charging system and method | |
| CN208923894U (en) | Portable DC charging machine device | |
| CN207535722U (en) | A kind of wireless charging quickly stake system applied to pure electric automobile | |
| JP2013223301A (en) | Power reception device and power transmission device of contactless power transfer unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230719 Address after: Building 1, No. 10, Jindu Road, Southeast Street, Changshu, Suzhou, Jiangsu 215558 Patentee after: Suzhou Reston Power Technology Co.,Ltd. Address before: 215500 Changshou City South Three Ring Road No. 99, Suzhou, Jiangsu Patentee before: CHANGSHU INSTITUTE OF TECHNOLOGY |
|
| TR01 | Transfer of patent right |