CN108711948A - A kind of wireless charging device of the capacitance compensation network based on primary topology - Google Patents
A kind of wireless charging device of the capacitance compensation network based on primary topology Download PDFInfo
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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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Abstract
The wireless charging device of the invention discloses a kind of capacitance compensation network based on primary topology, including, charge power supply, transmitting coil in emitting side is set, receiving coil in receiving side is set, charging load, the capacitance matrix and control capacitance matrix of one primary topology change the relay group of topological structure, control and transmitting coil string of the capacitance matrix by relay group, it is connected in parallel, constitute equivalent source edge emitting coil sides antiresonant circuit, secondary side receiving coil side transmitting coil receives the energy of wireless transmission and charges for load, charge power supply provides electric power for the antiresonant circuit of transmitting coil side；Using the capacitance compensation network of primary topology, the topological structure of capacitance matrix is adjusted into Mobile state by the capacitor of limited quantity, to dramatically increase the capacitance range of compensating electric capacity, it enables devices to keep resonant condition to carry out the wireless transmission of energy under more different charge frequencies, and energy maximization is kept to transmit.
Description
Technical field
The present invention relates to wireless charging devices, more particularly to a kind of capacitance compensation network based on primary topology
Wireless charging device.
Background technology
Not with the universal of portable electronic device, the continuous development of power electronic technique and transmission coil topology performance
Disconnected to be promoted, wireless energy transmission technology has tended to be ripe.
Magnetic resonance coupling formula wireless energy transfer, it is higher as a kind of energy transmission efficiency, and transmission range is farther out
Transmission mode utilizes several calutrons with identical resonance frequency, inductance coil of the cooperating under specific frequency
It intercouples and generates EMR electromagnetic resonance, finally transfer energy to load.In magnetic resonance coupling formula wireless energy transform device, need
It wants former and deputy side transmitting device by changing capacitance and inductance value, while entering the resonant condition under identical frequency, and it is once humorous
The coil that shakes winding is completed, and inductance value immobilizes therewith, therefore device generally enters a certain specific frequency by changing capacitance
Under resonant condition.
In practical applications, due to component tolerance, under the variation of the conditions such as change of distance change and working frequency, emission lines
Resonant frequency at circle and receiving coil is susceptible to deviation.Existing capacitor array can not change in time since structure is fixed
Capacitance in circuit, capacitance matching value is unique, cannot be exactly matched with inductance coil under new charge frequency, in circuit
Reactance cannot be cancelled, and the resonant condition of device circuit changes, and transmitted energy with non-resonant condition, caused energy loss.
For this purpose, a kind of capacitance matrix device of new changeable topological structure of market active demand, when device charge frequency changes
When, it can be mutually matched in time with charge coil using capacitance compensation network, the resonant condition of device made not change, that is,
The wireless charging technology of the capacitance compensation network of primary topology.
Invention content
The technical solution adopted in the present invention is a kind of wireless charging of the capacitance compensation network based on primary topology
Device, which is characterized in that including, charge power supply, be arranged source edge emitting side transmitting coil, connecing in secondary side receiving side is set
Take-up circle, charging load, the capacitance matrix of primary topology and control capacitance matrix change the relay of topological structure
Group, the capacitance matrix are connect by the control of relay group with transmitting coil series and parallel, and it is humorous to constitute equivalent emitting side parallel connection
Shake circuit, and receiving coil receives the energy of wireless transmission from transmitting coil and charges for load（Receiving coil and loading section are not
Diagram）, charge power supply provides electric power for emitting side antiresonant circuit.
Capacitance matrix byM×NA capacitance composition（M1, A）, N1, A）A is positive integer）, each in relay group
A relay controls the access capacitance matrix of each corresponding capacitance serial or parallel connection so that equivalent emitting side is in parallel
After resonance wireless transmission energy is carried out with receiving coil.
The topological structure of the capacitance matrix, including, SP and SP2Topological structure, the SP and SP2Topological structure and transmitting
Coil carries out impedance matching, and assembly first selection carries out impedance matching using SP topological structures with transmitting coil.
The invention has the advantages that due to the capacitance compensation network using primary topology, Finite Number can be passed through
The topological structure that the capacitor of amount adjusts capacitance matrix into Mobile state makes dress to dramatically increase the capacitance range of compensating electric capacity
Setting can keep resonant condition to carry out energy wireless transmission under more different charge frequencies, and energy maximization is kept to pass
It is defeated；In addition, also helping the integrated of capacitive means, solves traditional capacitance array way wireless energy transform device capacitance and open up
Flutter the problem that structure is fixed, capacitance is single.
Description of the drawings
Fig. 1 is in the capacitance compensation network of the present inventionM×NCapacitance matrix electrical schematic diagram；
Fig. 2 a are 2 × 5 capacitance matrix electrical schematic diagrams used during the MATLAB of the present invention is emulated；
Fig. 2 b are the isoboles electricity principles of the capacitance SP topological structures in the capacitance compensation network of the primary topology of the present invention
Figure
Fig. 2 c are the capacitance SP in the capacitance compensation network of the primary topology of the present invention2The isoboles electricity principle of topological structure
Figure；
Fig. 3 a are the capacitance value datas for 2 × 5 capacitance matrix of composition that the present invention uses in simulations；
Fig. 3 b are the present invention in simulations when charge frequency is in 20kHz -24kHz, in device not
With the composition and capacitance value data of capacitor topology；
Fig. 4 a be the present invention MATLAB emulation in, when device charge frequency be 20kHz when, use
Capacitance SP topologys and SP2When topological, the comparison result of the phase angle difference size of transmitting coil side main circuit voltage and electric current；
Fig. 4 b be the present invention MATLAB emulation in, when device charge frequency be 20kHz when, use
Capacitance SP topologys and SP2When topological, the comparison result of receiving coil lateral load watt level；
Fig. 4 c be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
Capacitance SP topologys and SP2When topological, the comparison result of the phase angle difference size of transmitting coil side main circuit voltage and electric current；
Fig. 4 d be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
Capacitance SP topologys and SP2When topological, the comparison result of receiving coil lateral load watt level；
Fig. 5 a be the present invention JMAG emulation in, when device charge frequency be 23kHz when, use electricity
Hold SP topologys and SP2When topological, the comparison result of the 3D figures for the magnetic induction intensity that receiving coil is obtained from transmitting coil；
Fig. 5 b be the present invention JMAG emulation in, when device charge frequency be 23kHz when, use electricity
Hold SP topologys and SP2When topological, the size of magnetic induction intensity；
Fig. 6 a be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
Capacitance difference SP topologys and capacitance SP2The capacitance composition situation of topology and its size of capacitance, wherein
When, use capacitance SP topological,When, using being capacitance SP2Topology；
Fig. 6 b be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
The capacitance SP topologys and capacitance value data that different ideal capacitances are constituted；
Fig. 6 c be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
Capacitance difference SP topologys and capacitance SP2When topological, the size data of secondary side receiving coil lateral load power；
Fig. 6 d be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
When the capacitance SP topologys that different ideal capacitances are constituted, the size data of secondary side receiving coil side lateral load power；
Fig. 7 a be the present invention MATLAB emulation in, frequency situation of change when device charge frequency continuously changes；
Fig. 7 b be the present invention MATLAB emulation in, when device charge frequency connects according to shown in Fig. 7 a
When continuous change, capacitance SP and SP are used2After topological structure, the phase angle difference of source edge emitting coil sides circuit voltage and electric current
Situation of change；
Fig. 7 c be the present invention MATLAB emulation in, when device charge frequency connects according to shown in Fig. 7 a
When continuous change, capacitance SP and SP are used2After topological structure, the situation of change of secondary side receiving coil lateral load watt level.
In figure：
It is description convenient for expression, use is representative, versatility reference numeral.
C 11 - C MN ：Capacitance in matrix
K 111– K MN1、 K 11– K M2：Control the relay of the capacitance access topology structure in matrix
L：Transmitting/receiving coil
D L0：Capacitance left end relay upper contact
D R0：Capacitance right end relay upper contact
D L1：Capacitance left end relay lower contact
D R1：Capacitance right end relay lower contact
D M ：Contact in capacitance right end relay
C S0：Constitute SP2Series capacitance at the first of topological structure
C P0：Constitute SP2Shunt capacitance at the first of topological structure
C S1：Constitute the series electrical perhaps SP of SP topological structures2Series capacitance at the second of topological structure
C P1：Constitute the shunt capacitance or SP of SP topological structures2Shunt capacitance at the second of topological structure
C1 -C10：Capacitance in MATLAB emulation.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is in the capacitance compensation network of the present inventionM×NCapacitance matrix electrical schematic diagram；As shown in Figure 1, a kind of based on variable
The wireless charging device of the capacitance compensation network of topological structure, including, emission lines in source edge emitting side are arranged in charge power supply
It encloses, the receiving coil in secondary side receiving side, charging load, the capacitance matrix of primary topology and control capacitance square is set
The relay group of battle array change topological structure, the capacitance matrix are connect by the control of relay group with transmitting coil series and parallel,
Equivalent emitting side antiresonant circuit is constituted, receiving coil receives the energy of wireless transmission from transmitting coil and filled for load
Electricity, charge power supply provide electric power for emitting side antiresonant circuit.
Capacitance matrix byM×NA capacitance composition（M1, A）, N1, A）A is positive integer）, each in relay group
Relay controls the access capacitance matrix of each corresponding capacitance serial or parallel connection so that equivalent emitting side parallel connection is humorous
After circuit resonance of shaking wireless transmission energy is carried out with receiving coil.
The topological structure of the capacitance matrix, including, SP and SP2Topological structure, the SP and SP2Topological structure and transmitting
Coil carries out impedance matching, and the present apparatus preferentially selects to carry out impedance matching with transmitting coil using SP topological structures.
Fig. 2 a are 2 × 5 capacitance matrix electrical schematic diagrams used during the MATLAB of the present invention is emulated；As shown in Figure 2 a, to test
The validity for demonstrate,proving the capacitance compensation network of primary topology proposed by the present invention, the electric principle of the specific capacitance matrix used
Figure, is 2 × 5 capacitance matrixs, the validity of the capacitance compensation network is verified using MATLAB emulation.
Fig. 2 b are the isoboles electricity of the capacitance SP topological structures in the capacitance compensation network of the primary topology of the present invention
Schematic diagram；As schemed shown in b, the specific configuration mode of SP capacitance matrix circuits is：Use capacitanceC 4WithC 8It forms in SP topological structures
CapacitanceC S1, by controlling relayK 141Connect capacitanceC 4Right side upper contactD R0MakeC 4Access capacitanceC S1；RelayK 231It connects
CapacitanceC 8Right side upper contactD R0MakeC 8Access capacitanceC S1.Use capacitanceC 7WithC 10Form the capacitance in SP topological structuresC P1, pass through
Control relayK 221Connect capacitanceC 7Left side upper contactD L0, relayK 222Connect capacitanceC 7Right side lower contactD R1MakeC 7Access electricity
HoldC P1；By controlling relayK 251Connect capacitanceC 10Right side lower contactD R1MakeC 10Access capacitanceC P1。
Fig. 2 c are the capacitance SP in the capacitance compensation network of the primary topology of the present invention2Topology knot
Isoboles electrical schematic diagram；As shown in Figure 2 c, SP2The concrete composition mode of capacitance matrix circuit is：Use capacitanceC 1WithC 6Group
At SP2Capacitance in topological structureC S0, by controlling relayK 111Connect capacitanceC 1Left side lower contactD L1, relayK 112It connects
CapacitanceC 1Right side upper contactD R0MakeC 1Access capacitanceC S0；By controlling relayK 211Connect capacitanceC 6Left side lower contactD L1, relay
DeviceK 212Connect capacitanceC 6Right side upper contactD R0MakeC 6Access capacitanceC S0.Use capacitanceC 2WithC 7Form SP2Electricity in topological structure
HoldC P0, by controlling relayK 121Connect capacitanceC 2Left side lower contactD L1, relayK 122Connect capacitanceC 2Right side lower contactD R1
MakeC 2Access capacitanceC P0；By controlling relayK 221Connect capacitanceC 7Left side lower contactD L1, relayK 222Connect capacitanceC 6It is right
Side lower contactD R1MakeC 7Access capacitanceC P0.Use capacitanceC 3WithC 8Form SP2Capacitance in topological structureC S1, by controlling relay
DeviceK 131Connect capacitanceC 3Contact in right sideD M MakeC 3Access capacitanceC S1；By controlling relayK 231Connect capacitanceC 8It is touched in right side
PointD M MakeC 8Access capacitanceC S1.Use capacitanceC 4Form SP2Capacitance in topological structureC P1, by controlling relayK 141Connect electricity
HoldC 4Right side lower contactD R1It realizes.In addition, in composition SP2In topological structure, the contact of relay groupK 11、K 12、K 21、K 22It is intended to
It connects.
Fig. 3 a are the capacitance value datas for 2 × 5 capacitance matrix of composition that the present invention uses in simulations；As shown in Figure 2 c,
The concrete composition situation of 2 × 5 capacitance matrixs used in MATLAB emulation, including capacitanceC 1(470nF)、 C 2(1.5nF)、C 3
(10nF)、C 4(22nF)、C 5(1nF)、C 6(47nF)、C 7(12nF)、C 8(47nF)、C 9(6.8nF) andC 10(100pF)。
Fig. 3 b are the present invention in simulations when charge frequency is in 20kHz -24kHz, different capacitor topologies in device
Composition and capacitance value data；As shown in Figure 3b, Fig. 3 b are in MATLAB emulation when present apparatus charge frequency is in 20kHz-24kHz
When, capacitance compensation network is using SP topologys and SP2The combined situation of capacitance when topological structure, specially：When the present apparatus charges
When frequency is 20kHz, capacitance compensation network uses SP topological structures, capacitanceC 4WithC 8Form capacitanceC S1, capacitanceC 7WithC 10Composition
CapacitanceC P1；When charge frequency is 21kHz, capacitance compensation network uses SP2Topological structure, capacitanceC 1WithC 6Form capacitanceC S0,
CapacitanceC 2WithC 7Form capacitanceC P0, capacitanceC 3WithC 8Form capacitanceC S1, capacitanceC 4Form capacitanceC P1；When charge frequency is 22kHz
When, capacitance compensation network uses SP topological structures, capacitanceC 4、C 7WithC 10Form capacitanceC S1, capacitanceC 5WithC 9Form capacitanceC P1；When
When charge frequency is 23kHz, capacitance compensation network uses SP2Topological structure, capacitanceC 1Form capacitanceC S0, capacitanceC 2Form capacitanceC P0, capacitanceC 3WithC 8Form capacitanceC S1, capacitanceC 7Form capacitanceC P1；When device charge frequency is 24kHz, capacitance compensation network
Using SP topological structures, capacitanceC 4WithC 5Form capacitanceC S1, capacitanceC 2WithC 9Form capacitanceC P1。
Fig. 4 a be the present invention MATLAB emulation in, when device charge frequency be 20kHz when, use
Capacitance SP topologys and SP2When topological, the comparison result of the phase angle difference size of transmitting coil side main circuit voltage and electric current；Figure
4b is the present invention in MATLAB emulation, when device charge frequency is 20kHz, uses capacitance SP topology and SP2When topological, connect
The comparison result of take-up circle lateral load watt level；As shown in Fig. 4 a, Fig. 4 b, the direct current supply voltage used in emulation is
260v, secondary side load use 1 Ω.When, using SP topological structures, at this point, voltage, the electric current of source edge emitting side
Phase angle difference is -1.8 °, shows that the circuit of source edge emitting coil sides is resonant condition, at this point, work(in secondary side receiving coil lateral load
Rate is 3.42kW；When, using SP2Topological structure, circuit voltage, the current phase angle difference of source edge emitting side are
68 °, the circuit of source edge emitting side is non-resonant condition, at this point, the secondary upper power of side load only has 0.93kW.
Fig. 4 c be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
Capacitance SP topologys and SP2When topological, the comparison of the main circuit voltage of source edge emitting coil sides and the phase angle difference size of electric current
As a result, Fig. 4 d are the present invention in MATLAB emulation, when device charge frequency is 21kHz, capacitance SP topology and SP are used2It opens up
When flutterring, the comparison result of receiving coil lateral load watt level；As shown in Fig. 4 a, Fig. 4 b, whenWhen, the present apparatus
Using SP topological structures, voltage, the current phase angle difference of source edge emitting coil sides are 46 °, show the circuit of source edge emitting coil sides
Energy is transmitted with non-resonant condition, at this point, power is 1.35kW in the load of secondary side receiving coil side；When
When, present apparatus capacitance compensation network changes into SP2Topological structure, side voltage, the current phase angle difference of source edge emitting coil are reduced to
0.6 °, show that transmitting coil side is restored to resonant condition, at this point, the power rise in secondary side receiving coil lateral load is
3.41kW。
Fig. 5 a be the present invention JMAG emulation in, when device charge frequency be 23kHz when, use electricity
Hold SP topologys and SP2When topological, the comparison result of the 3D figures for the magnetic induction intensity that receiving coil is obtained from transmitting coil,
Fig. 5 b are the present invention in JMAG emulation, when device charge frequency is 23kHz, use capacitance SP topology and SP2When topological, magnetic
The size figure of induction；As shown in Fig. 5 a, Fig. 5 b, Fig. 5 a are described in JMAG simulation models, when device charges frequently
When rate is 23kHz and direct current supply voltage is 260v, SP and SP is respectively adopted in present apparatus capacitance compensation network2When topological structure,
The comparison knot for the magnetic field intensity 3D effect figure that secondary side receiving coil side is sensed from the source edge emitting coil sides from distance 20cm
Fruit.Fig. 5 b are the sizes of corresponding magnetic induction intensity.It can see from Fig. 5 a, using SP and SP2The magnetic strength of topological structure
It is respectively 21.53mT and 44.32mT to answer maximum of intensity.Can intuitively it be seen very much by the 3D effect figure, when the present apparatus charges
When frequency is 23kHz, capacitance compensation Web vector graphic SP in emulation2Topological structure can be such that secondary side receiving coil lateral load obtains more
High power, uses SP2Topological structure is more suitable.
Fig. 6 a, Fig. 6 b, Fig. 6 c, Fig. 6 d are to verify when present apparatus charge frequency is 21kHz, capacitance compensation Web vector graphic
SP2More suitable the done simulation comparison result figure of topological structure ratio SP topological structures.Our power to charge to electric vehicle
As standard, using identical direct current supply voltage, the bearing power on secondary side, which at least needs to reach 3.3kW, just to be met the requirements.
Fig. 6 a be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
Capacitance difference SP topologys and capacitance SP2The capacitance composition situation of topology and its size of capacitance, whereinWhen, make
It is capacitance SP topologys,When, using being capacitance SP2Topology；As shown in Figure 6 a, whenWhen,
Use 5 kinds of SP topological structures of capacitor combination of 2 × 5 capacitance matrixs.
Fig. 6 c are the present invention in MATLAB emulation, when device charge frequency is 21kHz, use capacitance difference SP topology
With capacitance SP2When topological, the size data of secondary side receiving coil lateral load power；
As fig. 6 c,When can see, at this point, attainable maximum in secondary side receiving coil lateral load
Power is 1.35kW.
Fig. 6 a be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
Capacitance difference SP topologys and capacitance SP2The capacitance composition situation of topology and its size of capacitance, wherein
When, use capacitance SP topological,When, using being capacitance SP2Topology；As shown in Figure 6 a, whenWhen, the present apparatus is using the capacitor combination of 2 × 5 capacitance matrixs at SP2It, in fig. 6 c can be with when topological structure
It was found that secondary side receiving coil lateral load power is 3.4kW, meet electric vehicle charging requirement.
Fig. 6 b be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use different ideal capacitances
The capacitance SP topologys and capacitance value data of composition；As shown in Figure 6 b, when to be bearing power can reach requirement, SP topological structures are used
Desirable combination situation.
Fig. 6 d be the present invention MATLAB emulation in, when device charge frequency be 21kHz when, use
When the capacitance SP topologys that different ideal capacitances are constituted, the size data of secondary side receiving coil lateral load power；Such as Fig. 6 d institutes
Show, when charge frequency is 21kHz, at this point, capacitanceC S1+C P1Value when reaching 73.4nF, secondary side receiving coil lateral load work(
Rate is likely to be breached 3.3kW or more.And it can see and work as capacitanceC S1Value it is closerC S1+C P1And value when, secondary side receiving coil
Power is bigger in lateral load.
Fig. 7 a to Fig. 7 c are when device charge frequency consecutive variations between 19kHz-25kHz, and capacitance compensation network is adopted
With SP and SP2When topological structure, the present apparatus transmit energy the case where.
Fig. 7 a are the present invention in MATLAB emulation, and frequency when device charge frequency continuously changes becomes
Change situation；As shown in Figure 7a, device charge frequency is from 19kHz-25kHz consecutive variations.When charge frequency is in 20kHz-
When 24kHz, use is combined in capacitance compensation network such as Fig. 3 b, that is, charge frequency 20kHz, 22kHz and 24kHz are used
SP topological structures, charge frequency are that 21kHz and 23kHz uses SP2Topological structure, and charge frequency be 19 kHz and 25kHz when
What is be respectively adopted is the capacitance compensation network of 20 kHz and 24kHz.
Fig. 7 b be the present invention MATLAB emulation in, when device charge frequency shown in Fig. 7 a according to continuously changing, use
Capacitance SP and SP2After topological structure, the situation of change of the phase angle difference of source edge emitting coil sides circuit voltage and electric current；So from figure
7b can see, and when device charge frequency is 19kH and 25kHz, the voltage and current phase angle difference of source edge emitting coil sides all exists
80 ° or so, and when charge frequency consecutive variations between 20kHz-24kHz, phase angle difference remains near 0 ° of line, shows
When charge frequency consecutive variations, device remains that resonant condition is transmitted energy.
Fig. 7 c be the present invention MATLAB emulation in, when device charge frequency shown in Fig. 7 a according to continuously changing, use
Capacitance SP and SP2After topological structure, the situation of change of secondary side receiving coil lateral load watt level；As shown in Figure 7 c, work as charging
When frequency is 19kH and 25kHz, device transmits energy with non-resonant condition, and the bearing power on secondary side only has 0.02kW, 0.04kW,
And charge frequency is between 20kHz-24kHz when consecutive variations, the bearing power on secondary side be respectively 3.45kW, 3.40kW,
3.73kW, 3.55kW are attained by the requirement of electric vehicle charging.This shows when device charge frequency consecutive variations, uses
The capacitance compensation network of primary topology can make charging unit remain that resonant condition carries out energy transmission.
The present invention uses the capacitance compensation network of primary topology, can be by the capacitor of limited quantity into Mobile state
The topological structure for adjusting capacitance matrix enables devices to dramatically increase the capacitance range of compensating electric capacity more different
It keeps resonant condition to carry out energy wireless transmission under charge frequency, and energy maximization is kept to transmit；In addition, also helping capacitance
Device it is integrated, solve traditional capacitance array way wireless energy transform device capacitor topological structure fix, capacitance list
One the problem of.
Claims (3)
1. a kind of wireless charging device of the capacitance compensation network based on primary topology, which is characterized in that including charging electricity
Source, be arranged source edge emitting side transmitting coil, be arranged the receiving coil in secondary side receiving side, charging load, one variable open up
The relay group of the capacitance matrix and control capacitance matrix change topological structure of structure is flutterred, the capacitance matrix passes through relay group
Control connect with transmitting coil series and parallel, constitute equivalent emitting side antiresonant circuit, receiving coil connects from transmitting coil
It receives the energy of wireless transmission and charges for load, charge power supply provides electric power for emitting side antiresonant circuit.
2. the wireless charging device of the capacitance compensation network based on primary topology, feature exist according to claim 1
In, the capacitance matrix byM×NA capacitance composition（M1, A）, N1, A）A is positive integer）, each in relay group
A relay controls the access capacitance matrix of each corresponding capacitance serial or parallel connection so that equivalent emitting side is in parallel
After resonance wireless transmission energy is carried out with receiving coil.
3. the wireless charging device of the capacitance compensation network according to claim 1 or claim 2 based on primary topology, feature
It is, the topological structure of the capacitance matrix, including, SP and SP2Topological structure, the SP and SP2Topological structure and transmitting coil
Impedance matching is carried out, assembly first selection carries out impedance matching using SP topological structures with transmitting coil.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109760530A (en) * | 2019-01-14 | 2019-05-17 | 安徽省航嘉智源科技有限公司 | The wireless charging device and its wireless charging method of electric vehicle |
| CN112104099A (en) * | 2020-08-31 | 2020-12-18 | 西北工业大学 | IPT system maximum power transmission method based on bilateral LC-CCM compensation structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602579A (en) * | 2016-12-27 | 2017-04-26 | 武汉大学 | Wireless charging bidirectional energy transmission resonance compensating circuit and method |
| CN106849257A (en) * | 2017-03-13 | 2017-06-13 | 深圳市尧元科技有限公司 | The automatic impedance matching device and method of magnetic coupling resonance formula wireless charging system |
-
2018
- 2018-05-04 CN CN201810421838.6A patent/CN108711948A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602579A (en) * | 2016-12-27 | 2017-04-26 | 武汉大学 | Wireless charging bidirectional energy transmission resonance compensating circuit and method |
| CN106849257A (en) * | 2017-03-13 | 2017-06-13 | 深圳市尧元科技有限公司 | The automatic impedance matching device and method of magnetic coupling resonance formula wireless charging system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109760530A (en) * | 2019-01-14 | 2019-05-17 | 安徽省航嘉智源科技有限公司 | The wireless charging device and its wireless charging method of electric vehicle |
| CN112104099A (en) * | 2020-08-31 | 2020-12-18 | 西北工业大学 | IPT system maximum power transmission method based on bilateral LC-CCM compensation structure |
| CN112104099B (en) * | 2020-08-31 | 2024-01-16 | 西北工业大学 | IPT system maximum power transmission method based on bilateral LC-CCM compensation structure |
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Application publication date: 20181026 |