CN108110910A - The method of work of composite CLCC structures and the structure based on array lines ring type wireless energy transfer - Google Patents
The method of work of composite CLCC structures and the structure based on array lines ring type wireless energy transfer Download PDFInfo
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- CN108110910A CN108110910A CN201711463645.9A CN201711463645A CN108110910A CN 108110910 A CN108110910 A CN 108110910A CN 201711463645 A CN201711463645 A CN 201711463645A CN 108110910 A CN108110910 A CN 108110910A
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- Prior art keywords
- high frequency
- pumping unit
- clcc
- group pattern
- frequency pumping
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Classifications
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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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
-
- 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
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The method of work of composite CLCC structures and the structure based on array lines ring type wireless energy transfer, is related to wireless energy transfer field.The present invention is to solve the problem of that the poor input voltage requirement of existing LCL compensation networks expansion is high.It is high-frequency ac voltage that high frequency pumping unit of the present invention, which is used for the DC voltage conversion of power supply buses, the one end of two voltage output ends of high frequency pumping unit respectively with two group pattern coils is connected, the other end of two group pattern coils is connected with one end of intermediate capacitance, switching circuit is connected on the access between the other end of intermediate capacitance and two voltage output ends of high frequency pumping unit, high frequency pumping unit individually can apply voltage by switching circuit to a group pattern coil so that the group pattern coil generates constant exciting current.High frequency pumping unit is opened, applies alive array coil using switching circuit selection so that the group pattern coil generates constant exciting current.The present invention is suitable for wireless energy transfer.
Description
Technical field
The invention belongs to wireless energy transfer fields.
Background technology
Electric vehicle dynamic radio charging technique can effectively promote the course continuation mileage of electric vehicle, and reduce battery pack number
Mesh, had not only reduced the cost of electric vehicle, but also extended its service life so that electric energy supply is more safe and reliable.
Applied to the array coil structure of dynamic radio power supply, main advantage has:The coupling mechanism of small size effectively drops
The low loss that is powered, while leakage field is also limited, it is higher in the security for the magnetic radiation for improving efficiency of transmission.Monomer array coil
Relatively small inductance effectively reduces power supply apparent energy, and matching capacitance is more prone to, and cost is also lower.Small array coil
The damage of unit, the influence to global circuit is smaller, replaces opposite be easier to.
In the wireless energy transfer system for being array coil in transmitting terminal, as shown in Figure 1, using LCL compensation networks with reality
, it is necessary to be each array emitter coil one benefit identical with its self-induction of additional coiling when now emitting the constant current drive of end-coil
Repay inductance L0.Above-mentioned LCL compensation networks are that resonant network is made of compensation inductance L2, compensating electric capacity C1 and primary inductance L1, therefore
Referred to as LCL, as shown in Figure 4.
It so can not only increase the cost of manufacture of equipment;The occasion adjusted simultaneously in transmitting terminal coil inductance needs, compensation
Inductance value is difficult to follow adjustment, also greatly limits the expansion of equipment, in addition as inductance value L1When larger, in order to obtain enough
I1, can cause input voltage USIt is larger.
The content of the invention
The present invention is to solve the occasion that existing LCL compensation networks are adjusted in transmitting terminal coil inductance needs, compensation electricity
The problem of inductance value is difficult to follow adjusting device, and expansion is poor, and input voltage requirement is high is now provided based on the wireless energy of array lines ring type
Measure the composite CLCC structures of transmission and the method for work of the structure.
Composite CLCC structures based on array lines ring type wireless energy transfer, including intermediate capacitance, high frequency pumping unit,
Switching circuit and two group pattern coils;
It is high-frequency ac voltage that high frequency pumping unit, which is used for the DC voltage conversion of power supply buses,
The one end of two voltage output ends of high frequency pumping unit respectively with two group pattern coils is connected,
The other end of two group pattern coils is connected with one end of intermediate capacitance,
Switching circuit is connected on logical between the other end of intermediate capacitance and two voltage output ends of high frequency pumping unit
On the road,
High frequency pumping unit individually can apply voltage by switching circuit to a group pattern coil so that the group pattern line
Circle generates constant exciting current.
Above-mentioned switching circuit includes two power switch, two power switch be connected on respectively the other end of intermediate capacitance with
On access between two voltage output ends of high frequency pumping unit.
Above-mentioned switching circuit is single-pole double-throw switch (SPDT), and high frequency pumping unit is applied alive by single-pole double-throw switch (SPDT) selection
Array coil.
Above-mentioned composite CLCC structures further include two compensating electric capacities, and two compensating electric capacities are connected on two group pattern lines respectively
On access between circle and intermediate capacitance.
Above-mentioned power switch is full-control type two-way power switch.
The method of work of composite CLCC structures opens high frequency pumping unit, is applied using switching circuit selection alive
Array coil so that the group pattern coil generates constant exciting current.
The advantageous effect of composite CLCC structures of the present invention based on array lines ring type wireless energy transfer:
1st, two groups of transmitting terminal array coils are needed each other as the compensation inductance of other side with solving in traditional LC L topologys
Additional the problem of making a power inductance, the making volume of monomer power supply is reduced, has saved circuit cost.
2nd, in traditional LCL collocation structures, compensation inductance be often a fixed value, therefore, it is difficult to adjust transmitting coil from
Sense is to adapt to different power supply occasions, such issues which can effectively overcome, adaptable.
3rd, due to the presence of compensating electric capacity C1, C2, the equivalent inductance value that can be effectively reduced, and then reduce wanting for input voltage
It asks.
The present invention is suitable for wireless energy transfer.
Description of the drawings
Fig. 1 is the equivalent circuit of existing LCL resonance;
Fig. 2 is the circuit diagram of the composite CLCC structures containing power switch;
Fig. 3 is the circuit diagram of the composite CLCC structures containing single-pole double-throw switch (SPDT);
Fig. 4 is the structure diagram of the LCL described in background technology;
Fig. 5 is the structure diagram of CLCC topologys.
Specific embodiment
Specific embodiment one:Illustrate present embodiment with reference to Fig. 2, described in present embodiment based on array coil
The composite CLCC structures of formula wireless energy transfer, including compensating electric capacity C1, compensating electric capacity C2, intermediate capacitance C3, array coil
L1, array coil L2, power switch K1, power switch K2With high frequency pumping unit;
It is high-frequency ac voltage that high frequency pumping unit, which is used for the DC voltage conversion of power supply buses,
One voltage output end of high frequency pumping unit connects array coil L simultaneously1One end and power switch K1One
End, array coil L1Other end connection compensating electric capacity C1One end,
Another voltage output end of high frequency pumping unit connects array coil L simultaneously2One end and power switch K2One
End, array coil L2Other end connection compensating electric capacity C2One end,
Intermediate capacitance C3One end connect compensating electric capacity C simultaneously1The other end and compensating electric capacity C2The other end, intermediate electricity
Hold C3The other end connect power switch K simultaneously1The other end and power switch K2The other end.
The method of work of composite CLCC structures described in present embodiment is as follows:
Original state:Power switch K1With power switch K2It disconnects, high frequency pumping unit is closed;
Array coil L1Work:Make power switch K first1Conducting, is then turned on high frequency pumping unit so that array coil
L1It is upper to generate constant exciting current;Array coil L1After the completion of work, sequentially close high frequency pumping unit, disconnect power switch
K1, restPose.
Array coil L2Work:Make power switch K first2Conducting, is then turned on high frequency pumping unit so that array coil
L2It is upper to generate constant exciting current;Array coil L2After the completion of work, sequentially close high frequency pumping unit, disconnect power switch
K2, restPose.
Specific embodiment two:Illustrate present embodiment with reference to Fig. 3, described in present embodiment based on array coil
The composite CLCC structures of formula wireless energy transfer, including compensating electric capacity C1, compensating electric capacity C2, intermediate capacitance C3, array coil
L1, array coil L2, single-pole double-throw switch (SPDT) and high frequency pumping unit;
It is high-frequency ac voltage that high frequency pumping unit, which is used for the DC voltage conversion of power supply buses,
One voltage output end of high frequency pumping unit connects array coil L simultaneously1One end and single-pole double-throw switch (SPDT) K1
Contact, array coil L1Other end connection compensating electric capacity C1One end,
Another voltage output end of high frequency pumping unit connects array coil L simultaneously2One end and single-pole double-throw switch (SPDT)
K2Contact, array coil L2Other end connection compensating electric capacity C2One end,
Intermediate capacitance C3One end connect compensating electric capacity C simultaneously1The other end and compensating electric capacity C2The other end, intermediate electricity
Hold C3The other end connection single-pole double-throw switch (SPDT) non-moving end.
The method of work of composite CLCC structures described in present embodiment is as follows:
Original state:Single-pole double-throw switch (SPDT) is placed in room, and high frequency pumping unit is closed;
Array coil L1Work:Make single-pole double-throw switch (SPDT) and K first1Contact turns on, and is then turned on high frequency pumping unit, makes
Obtain array coil L1It is upper to generate constant exciting current;Array coil L1After the completion of work, sequentially close high frequency pumping unit, break
Open single-pole double-throw switch (SPDT) and K1Contact restPoses.
Array coil L2Work:Single-pole double-throw switch (SPDT) and K first2Contact turns on, and is then turned on high frequency pumping unit so that
Array coil L2It is upper to generate constant exciting current;Array coil L2After the completion of work, sequentially close high frequency pumping unit, disconnect
Single-pole double-throw switch (SPDT) and K2Contact restPoses.
The present invention is based on LCL topologys, improve its compensation network, it is proposed that CLCC topologys.As shown in figure 5, CLCC topologys
Feature is to form parallel resonance chamber after primary coil L1 and the first compensating electric capacity C1 series compensations with intermediate capacitance C3 again, while the
Series resonance chamber is formed with intermediate capacitance C3 again after two compensation inductance L2 and the second compensating electric capacity C2 series compensations, due to primary line
The compensation network of circle L1 is made of C2, L2, C3, C1, therefore referred to as CLCC is topological.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (6)
1. the composite CLCC structures based on array lines ring type wireless energy transfer, which is characterized in that including intermediate capacitance, high frequency
Exciting unit, switching circuit and two group pattern coils;
It is high-frequency ac voltage that high frequency pumping unit, which is used for the DC voltage conversion of power supply buses,
The one end of two voltage output ends of high frequency pumping unit respectively with two group pattern coils is connected,
The other end of two group pattern coils is connected with one end of intermediate capacitance,
Switching circuit is connected on the access between the other end of intermediate capacitance and two voltage output ends of high frequency pumping unit,
High frequency pumping unit individually can apply voltage by switching circuit to a group pattern coil so that the group pattern coil produces
Raw constant exciting current.
2. the composite CLCC structures according to claim 1 based on array lines ring type wireless energy transfer, feature exist
In switching circuit is single-pole double-throw switch (SPDT), and high frequency pumping unit applies alive array coil by single-pole double-throw switch (SPDT) selection.
3. the composite CLCC structures according to claim 1 based on array lines ring type wireless energy transfer, feature exist
In switching circuit includes two power switch, and two power switch are connected on the other end and high frequency pumping of intermediate capacitance respectively
On access between two voltage output ends of unit.
4. the composite CLCC structures based on array lines ring type wireless energy transfer according to claim 1,2 or 3, special
Sign is, further includes two compensating electric capacities, and two compensating electric capacities are connected on respectively between two group pattern coils and intermediate capacitance
On access.
5. the composite CLCC structures according to claim 3 based on array lines ring type wireless energy transfer, feature exist
In power switch is full-control type two-way power switch.
6. the method for work of composite CLCC structures described in claim 1, which is characterized in that
High frequency pumping unit is opened, applies alive array coil using switching circuit selection so that the group pattern coil generates
Constant exciting current.
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Cited By (2)
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CN113595259A (en) * | 2021-07-05 | 2021-11-02 | 哈尔滨工业大学 | Integrated guide rail distribution switching power supply topology based on LCL compensation |
WO2022116413A1 (en) * | 2020-12-01 | 2022-06-09 | 浙江大学 | Variable circuit topology capable of switching wireless power transmission coil and compensation capacitor |
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Publication number | Priority date | Publication date | Assignee | Title |
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