CN108718100A - A kind of centralization quick-charging circuit and system - Google Patents
A kind of centralization quick-charging circuit and system Download PDFInfo
- Publication number
- CN108718100A CN108718100A CN201711182071.8A CN201711182071A CN108718100A CN 108718100 A CN108718100 A CN 108718100A CN 201711182071 A CN201711182071 A CN 201711182071A CN 108718100 A CN108718100 A CN 108718100A
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- China
- Prior art keywords
- quick
- series
- connection
- charging circuit
- centralization
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- 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.)
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Classifications
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
-
- 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
- B60L53/20—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 converters located in the vehicle
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of centralized quick-charging circuits and system, the centralization quick-charging circuit to include:Power module, high frequency transformer, the first AC DC converting unit, connection in series-parallel control unit, wherein the input terminal of power module is connect with input power, and the output of power module is terminated at the primary side of high frequency transformer;The secondary side of high frequency transformer is connected to the input terminal of the first AC DC converting unit;The output end of DC conversion unit is connect with connection in series-parallel control unit, and connection in series-parallel control unit is used to control the connection relation of the first AC DC converting unit.Centralized quick-charging circuit designed by the present invention realizes the exchange of power energy between isolating transformer secondary side by the setting of connection in series-parallel control unit;And by the charging current and charging voltage for adjusting output, the flexibility of whole system is improved, to make system be expanded as the super quick charging system of high voltage, high current by common DC charging system.
Description
Technical field
It charges field the present invention relates to electric vehicle, and in particular to a kind of centralization quick-charging circuit and system.
Background technology
With the fast development of electric vehicle, quick charge demand becomes more, and development fast-speed direct current charging technique is electronic vapour
The key technology of vehicle charging technique.Direct current quick charge, charge power is big, and the charging time is short, saves user time, but simultaneously one
As direct-current charging post it is more of high cost than alternating-current charging pile, control is handed over complicated.
Direct current quick charging system at present, major defect are that hardware cost is higher, cannot achieve isolating transformer secondary side
Between power energy exchange;And existing charging pile is not expanded space, once pile body design is completed, maximum power is just really
Fixed, if it is desired to it is higher power grade to expand, such as super fast charge then needs Overall Reconstruction or redesign, DC charging system
The flexibility of system is poor.
Invention content
The technical problem to be solved in the present invention is to overcome existing direct current quick charging system, cannot achieve isolating transformer
The exchange of power energy between secondary side;And the flexibility of existing DC charging system is poor, what charge power can not be adjusted
Problem.
For this purpose, the present invention provides a kind of centralized quick-charging circuit, including:Power module, high frequency transformer, first are handed over
Flow DC conversion unit, connection in series-parallel control unit, wherein the input terminal of the power module is connect with input power, the work(
The output of rate module is terminated at the primary side of the high frequency transformer;The secondary side of the high frequency transformer is connected to described first and hands over
Flow the input terminal of DC conversion unit;The output end of the DC conversion unit and the input terminal of the connection in series-parallel control unit connect
It connects, the output end of the connection in series-parallel control unit is connect with distributed charging pile terminal, and the connection in series-parallel control unit is for controlling
Make the connection relation of the first AC DC converting unit.
Optionally, the power module includes:Second AC DC converting unit is used for the exchange of the input power
Electricity is converted to direct current signal;DC communication converting unit is converted to for receiving the direct current signal, and by the direct current signal
High frequency ac signal is sent to the primary side of the high frequency transformer.
Optionally, the DC communication converting unit includes one or more direct-current-alternating-current converters.
Optionally, the first AC DC converting unit includes one or more AC-DC converters.
Optionally, when the direct-current-alternating-current converter is multiple, the direct-current-alternating-current converter and the AC DC
Converter is corresponded by the high frequency transformer, is connected to the primary side and secondary side of the high frequency voltage transformation unit.
Optionally, the connection in series-parallel control unit is specifically used for:Control the output end of multiple AC-DC converters
It is connected in parallel.
Optionally, when the output end of the n AC-DC converters is connected in parallel, the n-1 AC DCs become
First output end of parallel operation is connect with the first output end of the 1st AC-DC converter, the n-1 AC DCs become
The second output terminal of parallel operation is connect with the second output terminal of the 1st AC-DC converter.
Optionally, the connection in series-parallel control unit is specifically used for:Control the output end of multiple AC-DC converters
It is connected in series with.
Optionally, when the output end of the n AC-DC converters is connected in series with, the 1st AC DC becomes
It is whole that the second output terminal of first output end of parallel operation and n-th of AC-DC converter is connected to the distributed charging pile
It is first defeated to be connected to the adjacent AC-DC converter for end, the second output terminals of remaining n-2 AC-DC converters
Outlet.
Optionally, the connection in series-parallel control unit includes multiple control switches.
For this purpose, the present invention also provides a kind of centralized quick charging systems, including:Distributed charging pile terminal and described
Centralized quick-charging circuit, wherein the input terminal of the centralization quick-charging circuit is connect with input power, the concentration
The output end of formula quick-charging circuit is connect with the distributed charging pile terminal.
Technical solution of the present invention has the following advantages that:
By the setting of connection in series-parallel control unit, the exchange of power energy between isolating transformer secondary side is realized;And
And charging current and charging voltage by adjusting output, the flexibility of whole system is improved, to make system by common
DC charging system is expanded as the super quick charging system of high voltage, high current.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of centralization quick-charging circuit of the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of power module of the embodiment of the present invention;
Fig. 3 is another structural schematic diagram of power module of the embodiment of the present invention;
Fig. 4 is another structural schematic diagram of centralization quick-charging circuit of the embodiment of the present invention;
Fig. 5 is another structural schematic diagram of centralization quick-charging circuit of the embodiment of the present invention;
Fig. 6 is the structural schematic diagram of centralization quick charging system of the embodiment of the present invention;
Fig. 7 is the structural schematic diagram of distributed charging pile terminal of the embodiment of the present invention.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected;It can be machine
Tool connects, and can also be electrical connection;It can be directly connected, can also can also be two indirectly connected through an intermediary
Connection inside element can be wirelessly connected, can also be wired connection.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other at conflict.
Embodiment 1
The embodiment of the present invention provides a kind of electric vehicle DC charging circuit, as shown in Figure 1, including:Power module 11 is used
In the alternating current of input power 3 is converted to high-frequency ac electric signal;High frequency transformer 12, for receiving high-frequency ac telecommunications
Number, and high-frequency ac electric signal is physically separated;First AC DC converting unit 13, after receiving physical isolation
High-frequency ac electric signal, and the high-frequency ac electric signal after physical isolation is converted into output DC signal;Connection in series-parallel controls
Unit 15, the connection in series-parallel control unit 15 are connect with the output end of the first AC DC converting unit 13, are handed over for controlling first
Flow the connection relation of multiple AC-DC converters in DC conversion unit 13.
In a preferred embodiment, as shown in Figures 2 and 3, above-mentioned power module 11 includes:The conversion of second AC DC is single
Member 111, for the alternating current of input power 3 to be converted to direct current signal;DC communication converting unit 112, for receiving direct current
Signal, and direct current signal is converted into the primary side that high frequency ac signal is sent to high frequency transformer 12.
Specifically, in one embodiment, as shown in Figures 2 and 3, above-mentioned DC communication converting unit 112 include one or
Multiple direct-current-alternating-current converters.
Specifically, in one embodiment, as shown in Figures 2 and 3, above-mentioned first AC DC converting unit 13 includes one
Or multiple AC-DC converters.
Specifically, as shown in figure 3, when direct-current-alternating-current converter is multiple, direct-current-alternating-current converter becomes with AC DC
Parallel operation is corresponded by high frequency transformer 12, is connected to the primary side and secondary side of high frequency transformer.
Specifically, in one embodiment, as shown in figure 4, above-mentioned connection in series-parallel control unit 15 is specifically used for:Control multiple friendships
The output end of stream DC converter is connected in parallel.When the output end of n AC-DC converter is connected in parallel, n-1 exchange
First output end of DC converter connect with the first output end of the 1st AC-DC converter, n-1 AC/DC transfer
The second output terminal of device is connect with the second output terminal of the 1st AC-DC converter.
Specifically, in one embodiment, as shown in figure 5, above-mentioned connection in series-parallel control unit 15 is specifically used for:Control multiple friendships
The output end of stream DC converter is connected in series with.When the output end of n AC-DC converter is connected in series with, the 1st exchange
First output end of DC converter and the second output terminal of n-th of AC-DC converter are connected to distributed charging pile terminal 2,
The second output terminal of remaining n-2 AC-DC converter is connected to the first output end of adjacent AC-DC converter.
Specifically, in one embodiment, as shown in Figures 4 and 5, above-mentioned connection in series-parallel control unit 15 includes that multiple controls are opened
It closes, the connection in series-parallel of multiple AC-DC converters is realized by controlling switch.
It should be noted that above-described embodiment is illustrated for accessing load and being batteries of electric automobile, but in reality
Access load can also be other types in the application of border, such as:Battery of electric bicycle etc., the present invention is not limited thereto.
By the setting of above-mentioned connection in series-parallel control unit 15, the friendship of power energy between isolating transformer secondary side is realized
It changes;And by regulating system export charging current and charging voltage, improve the flexibility of whole system, to make system by
Common DC charging system is expanded as the super quick charging system of high voltage, high current.
Embodiment 2
The embodiment of the present invention provides a kind of electric vehicle DC charging system, as shown in fig. 6, including:Centralization is quickly filled
Circuit 1 and distributed charging pile terminal 2, wherein centralized quick-charging circuit 1 is set in substation, and input power 3 connects
In the input terminal of centralized quick-charging circuit 1, output end and the distributed charging pile terminal 2 of centralized quick-charging circuit 1
It is connected.In practical applications, input power 3 can be mains supply or three phase mains etc., and the present invention is not limited thereto.
In a preferred embodiment, which includes:Power module 11 is used for the friendship of input power 3
Galvanic electricity is converted to high-frequency ac electric signal;High frequency transformer 12, for receiving high-frequency ac electric signal, and to high-frequency ac telecommunications
It number is physically separated;First AC DC converting unit 13, for receiving the high-frequency ac electric signal after being physically isolated, and will
High-frequency ac electric signal after physical isolation is converted to output DC signal, connection in series-parallel control unit 15, connection in series-parallel control
Unit 15 is connect with the output end of the first AC DC converting unit 13, more in the first AC DC converting unit 13 for controlling
The connection relation of a AC-DC converter.The power module 11, high frequency transformer 12, the first AC DC converting unit 13 and
The concrete structure and function of connection in series-parallel control unit 15 please refer to described in above-described embodiment 1.
In a preferred embodiment, as shown in fig. 7, above-mentioned distributed charging pile terminal 2 includes:Man-machine interaction unit 21,
Operational order for receiving user;Metering units 22, for calculating charging expense according to operational order;Charge pipette tips 23, uses
In for charging batteries of electric automobile;Control unit 24 is filled for controlling charging pipette tips according to operational order for batteries of electric automobile
Electricity.
In a preferred embodiment, the distribution that the above-mentioned output end with centralized quick-charging circuit 1 is connect as shown in Figure 7
One or more can be arranged in formula charging pile terminal 2.
It should be noted that above-described embodiment is illustrated for accessing load and being batteries of electric automobile, but in reality
Access load can also be other types in the application of border, such as:Battery of electric bicycle etc., the present invention is not limited thereto.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of centralization quick-charging circuit, which is characterized in that including:Power module (11), high frequency transformer (12), first
AC DC converting unit (13), connection in series-parallel control unit (15), wherein
The input terminal of the power module (11) is connect with input power (3), and the output of the power module (11) is terminated at institute
State the primary side of high frequency transformer (12);
The secondary side of the high frequency transformer (12) is connected to the input terminal of the first AC DC converting unit (13);
The output end of the DC conversion unit is connect with connection in series-parallel control unit (15) input terminal;The connection in series-parallel control
The output end of unit (15) is connect with distributed charging pile terminal (2);The connection in series-parallel control unit (15) is described for controlling
The connection relation of first AC DC converting unit (13).
2. centralization quick-charging circuit according to claim 1, which is characterized in that the power module (11) includes:
Second AC DC converting unit (111), for the alternating current of the input power (3) to be converted to direct current signal;
DC communication converting unit (112) is converted to high-frequency ac for receiving the direct current signal, and by the direct current signal
Signal is sent to the primary side of the high frequency transformer (12).
3. centralization quick-charging circuit according to claim 2, which is characterized in that the DC communication converting unit
(112) include one or more direct-current-alternating-current converters;The first AC DC converting unit (13) includes one or more
The AC-DC converter.
4. centralization quick-charging circuit according to claim 3, which is characterized in that when the direct-current-alternating-current converter is
When multiple, the direct-current-alternating-current converter is corresponded with the AC-DC converter by the high frequency transformer (12),
It is connected to the primary side and secondary side of the high frequency voltage transformation unit.
5. centralization quick-charging circuit according to claim 3, which is characterized in that the connection in series-parallel control unit (15)
It is specifically used for:
The output end for controlling multiple AC-DC converters is connected in parallel.
6. centralization quick-charging circuit according to claim 5, which is characterized in that when the n AC/DC transfers
When the output end of device is connected in parallel, the first output end of a AC-DC converters of n-1 and the 1st AC DC become
The first output end connection of parallel operation, second output terminal and the 1st AC DC change of a AC-DC converters of n-1
The second output terminal of parallel operation connects.
7. centralization quick-charging circuit according to claim 1, which is characterized in that the connection in series-parallel control unit (15)
It is specifically used for:
The output end for controlling multiple AC-DC converters is connected in series with.
8. centralization quick-charging circuit according to claim 7, which is characterized in that when the n AC/DC transfers
When the output end of device is connected in series with, the first output end of the 1st AC-DC converter and n-th of AC DC become
The second output terminal of parallel operation is connected to the distributed charging pile terminal (2), and the second of remaining n-2 AC-DC converters
Output is terminated at the first output end of the adjacent AC-DC converter.
9. the centralized quick-charging circuit according to claim 6 or 8, which is characterized in that the connection in series-parallel control unit
(15) include multiple control switches.
10. a kind of centralization quick charging system, which is characterized in that including:Distributed charging pile terminal (2) and such as claim
Centralized quick-charging circuit (1) in 1-9 described in any claim, wherein the centralization quick-charging circuit (1)
Input terminal is connect with input power (3), output end and the distributed charging pile of the centralization quick-charging circuit (1)
Terminal (2) connects.
Priority Applications (1)
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CN201711182071.8A CN108718100A (en) | 2017-11-23 | 2017-11-23 | A kind of centralization quick-charging circuit and system |
Applications Claiming Priority (1)
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CN201711182071.8A CN108718100A (en) | 2017-11-23 | 2017-11-23 | A kind of centralization quick-charging circuit and system |
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CN201711182071.8A Pending CN108718100A (en) | 2017-11-23 | 2017-11-23 | A kind of centralization quick-charging circuit and system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109698543A (en) * | 2019-01-29 | 2019-04-30 | 深圳市傲基电子商务股份有限公司 | A kind of intelligent charger and charge control method |
CN110138239A (en) * | 2019-05-20 | 2019-08-16 | 深圳市优优绿能电气有限公司 | A kind of wide scope invariable power converter circuit |
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DE102009028973A1 (en) * | 2009-08-28 | 2011-03-03 | Robert Bosch Gmbh | DC / DC converter circuit and battery system |
CN105119334A (en) * | 2015-08-31 | 2015-12-02 | 深圳驿普乐氏科技有限公司 | Voltage transformation circuit with wide voltage output range and DC charging pile |
CN106828145A (en) * | 2016-12-26 | 2017-06-13 | 浙江万马新能源有限公司 | Fully apply the off-board charger flexibility charging optimization method of electric automobile |
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2017
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102009028973A1 (en) * | 2009-08-28 | 2011-03-03 | Robert Bosch Gmbh | DC / DC converter circuit and battery system |
CN105119334A (en) * | 2015-08-31 | 2015-12-02 | 深圳驿普乐氏科技有限公司 | Voltage transformation circuit with wide voltage output range and DC charging pile |
CN106828145A (en) * | 2016-12-26 | 2017-06-13 | 浙江万马新能源有限公司 | Fully apply the off-board charger flexibility charging optimization method of electric automobile |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109698543A (en) * | 2019-01-29 | 2019-04-30 | 深圳市傲基电子商务股份有限公司 | A kind of intelligent charger and charge control method |
CN110138239A (en) * | 2019-05-20 | 2019-08-16 | 深圳市优优绿能电气有限公司 | A kind of wide scope invariable power converter circuit |
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Application publication date: 20181030 |