CN206344699U - The charging station system of DC charging - Google Patents
The charging station system of DC charging Download PDFInfo
- Publication number
- CN206344699U CN206344699U CN201621199051.2U CN201621199051U CN206344699U CN 206344699 U CN206344699 U CN 206344699U CN 201621199051 U CN201621199051 U CN 201621199051U CN 206344699 U CN206344699 U CN 206344699U
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- Prior art keywords
- charging
- station system
- charging station
- distribution transformer
- winding
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- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of charging station system of DC charging, including distribution transformer (1), service cable (2) and at least one set of charging pile (3), a multiple-pulse vertoro (4) is provided with distribution transformer (1) place or distribution transformer and multi-pulse rectifier are integrated into a distribution transformer rectifier, for alternating current to be converted into direct current, DC dc converter, the voltage for changing the direct current are provided with inside charging pile (3).A kind of charging station system for DC charging that the utility model is provided can greatly improve the reliability of system, and can improve the conversion efficiency of electric energy, reduce power consumption.
Description
Technical field
The utility model is related to technical field of electric power, and in particular to a kind of charging station system of DC charging.
Background technology
With the continuous lifting of environmental consciousness, the favor of masses is increasingly subject to as the electric automobile of new-energy automobile.It is right
For electric automobile, quick charge stake is indispensable configuration.Existing electric vehicle rapid charging stake typically uses three
Cross streams are powered, and are charged a battery after two stage power is converted.As shown in figure 1, first order conversion is three-phase alternating current
The high voltage direct current inside charging pile is converted to, is completed typically by a three-phase PFC active rectifying circuit；The second level is converted
It is internal high voltage direct current to be converted to the charging current required for battery, becomes typically by an isolated DC/DC
Parallel operation is completed.Fig. 2, which is shown in the schematic diagram of a typical charging station, a usual charging station, is provided with multiple charging piles,
It is powered by a 10kV distribution transformer.
In the charging station system shown in Fig. 2, critical piece includes 10kV distribution transformers, the service cable of Three-phase five-wire
And charging pile.The AC/AC that power converter link includes distribution transformer is converted, the AC/DC conversion inside charging pile, and charging
DC/DC conversion inside stake.Power consumption is lost including distribution transformer, service cable loss, charging pile own loss etc..
In order to reduce power consumption, current HVDC charging station system becomes AC/DC common inside each charging pile
Ring change section is extracted outside charging pile, is combined into a powerful AC/DC translation circuit, is only retained originally in charging pile
DC/DC conversion sections, as shown in Figure 3.
Although this scheme simplifies AC/DC transform parts, but the reliability of system declines to a great extent.Reason is：By
AC/DC translation circuits in this scheme are consistent with the AC/DC circuits inside charging pile in principle, therefore reliability index
Also it is consistent.When AC/DC is distributed in each charging pile, the failure of each AC/DC circuits only influences a charging pile.And work as AC/
DC is put together when becoming a centrally connected power supply power supply, and the failure of AC/DC circuits will influence the operation of whole charging station.Therefore such as
Fruit has n charging pile, then the system reliability of whole charging station is reduced to original 1/n.Although using methods such as Redundancy Designs
System reliability can be improved, but is difficult that system reliability is brought up to n times, that is to say, that it is difficult to which system reliability is lifted
To the level same with ac power supply system.
Improved therefore, it is necessary to further to existing charging station system.
Utility model content
The utility model is to overcome the charging station system of the charging of HVDC in the prior art due to AC/DC being converted
Link extracts the shortcoming for causing the reliability of system to decline to a great extent outside charging pile, so as to provide a kind of filling for DC charging
Electric power station system, can effectively improve the reliability of system, and can improve the conversion efficiency of electric energy, reduce power consumption.
The utility model provides a kind of charging station system of DC charging, including distribution transformer, service cable and extremely
Few one group of charging pile, provided with a multiple-pulse vertoro at distribution transformer, for alternating current to be converted into direct current,
DC-DC converter, the voltage for changing direct current are provided with inside charging pile.
A kind of charging station system of DC charging described in the utility model, it is preferred that, distribution transformer with it is many
Pulse transforming rectifier is connected, and multiple-pulse vertoro is connected by service cable with charging pile.
A kind of charging station system of DC charging described in the utility model, it is preferred that, multiple-pulse Transformer Rectifier
Device is made up of multiple-pulse transformer and multiple three-phase rectifiers.
A kind of charging station system of DC charging described in the utility model, it is preferred that, multiple-pulse Transformer Rectifier
The secondary of device is 12 pulses, 18 pulses or 24 pulses.
The utility model provides a kind of charging station system of DC charging, including one is used to alternating current being converted to direct current
DC-DC converter is provided with inside distribution transformer rectifier, service cable and at least one set of charging pile of electricity, charging pile, is used
In the voltage of conversion direct current.
A kind of charging station system of DC charging described in the utility model, it is preferred that, distribution transformer rectifier
Including one group of primary side winding, at least two groups vice-side windings and at least two rectifier bridges, the vice-side winding and the rectifier bridge phase
Connect and correspond.
A kind of charging station system of DC charging described in the utility model, it is preferred that, primary side winding is triangle
Shape connection.
A kind of charging station system of DC charging described in the utility model, it is preferred that, vice-side winding includes one
Group secondary main winding and at least one set of secondary auxiliary winding, secondary main winding are star connection, secondary main winding and secondary auxiliary winding
Phase difference and vice-side winding number product be 60 °.
A kind of charging station system of DC charging described in the utility model, it is preferred that, the line of secondary main winding
Footpath is thicker than the secondary auxiliary winding.The exchange capacity and D.C. capacity of output, secondary master can be adjusted by the adjustment to line footpath
The line diameter ratio secondary auxiliary winding of winding is thick, and AC power can be provided simultaneously.
A kind of charging station system of DC charging described in the utility model, it is preferred that, secondary main winding includes
At least one set of tap.Secondary main winding carries out tap and is designed to, by the different voltage of different tap outputs, add use
The selectivity at family.
The utility model does not control circuit due to AC/DC translation circuits being used by transformer and the passive of rectifier realization
To replace three-phase pfc circuit, its main circuit part only has transformer and rectifier bridge, can effectively improve the reliability of system.
Brief description of the drawings
Fig. 1 is the charging principle schematic diagram of existing charging pile；
Fig. 2 is the principle schematic of existing charging station；
Fig. 3 is the charging station system schematic diagram of DC charging in the prior art；
Fig. 4 is a kind of charging station system schematic diagram of DC charging；
Fig. 5 is the charging station system schematic diagram of DC charging in embodiment 1；
Fig. 6 is the charging station system schematic diagram of DC charging in embodiment 2；
Fig. 7 is distribution transformer rectifier schematic diagram.
Reference：1st, distribution transformer；2nd, service cable；3rd, charging pile；4th, multiple-pulse vertoro；5th, distribution becomes
Press rectifier；51st, primary side winding；52nd, vice-side winding；521st, secondary main winding；522nd, secondary auxiliary winding；53rd, rectifier bridge.
Embodiment
Below in conjunction with accompanying drawing, further detailed is made to the charging station system of DC charging of the present utility model with specific embodiment
Describe in detail bright.It should be understood that following examples are merely to illustrate the utility model not for restriction scope of the present utility model.
Embodiment 1
As shown in Figures 4 and 5, a kind of charging station system of DC charging of the utility model offer, including distribution transformer 1,
Service cable 2 and six groups of charging piles 3, provided with a multiple-pulse vertoro 4 at distribution transformer 1, for that will exchange
Electricity is converted to direct current, and the inside of charging pile 3 is provided with DC-DC converter, the voltage for changing direct current.Distribution transformer
1 is connected with multiple-pulse vertoro 4, for the voltage for the alternating current for providing transition electric power system, multiple-pulse Transformer Rectifier
Device 4 is connected by service cable 2 with charging pile 3, and multiple-pulse vertoro 4 is by multiple-pulse transformer and multiple three-phase rectifiers
Constitute, the secondary of multiple-pulse vertoro 4 is 12 pulses, 18 pulses or 24 pulses；Service cable 2 is three-core cable.
The present embodiment can be by power converter efficiency by 96.0% original raising to 96.5%, and increase rate is
12.5%.
Embodiment 2
Such as Fig. 6~Shown in 7, the utility model provides a kind of charging station system of DC charging, including one is used to hand over
Stream electricity is converted to the distribution transformer rectifier 5, service cable 2 and six groups of charging piles 3 of direct current, the inside of charging pile 3 provided with direct current-
DC converter, the voltage for changing direct current.Distribution transformer rectifier 5 includes one group of primary side winding 51, at least two groups pairs
The rectifier bridge 53 of side winding 52 and at least two, vice-side winding 52 is connected and corresponded with rectifier bridge 53；Primary side winding 51 is three
Angular connection；Vice-side winding 52 includes one group of secondary main winding 521 and at least one set of secondary auxiliary winding 522, secondary main winding 521
For star connection, secondary auxiliary winding 522 is delta connection or wye connection, secondary main winding 521 and secondary auxiliary winding 522
The product of phase difference and vice-side winding number is 60 °；Secondary main winding 521 includes at least one set of tap.
The present embodiment can be by power converter efficiency by 96.0% original raising to 97.5%, and increase rate is
37.5%.
It is described above to be merely exemplary for the utility model, and nonrestrictive, those of ordinary skill in the art
Understand, in the case where not departing from the spirit and scope that claim is limited, any modification, change or the equivalent shape that can be made
Formula is fallen within the protection domain of utility model.
Claims (10)
1. a kind of charging station system of DC charging, including distribution transformer (1), service cable (2) and at least one set of charging
Stake (3), it is characterised in that：At the distribution transformer (1) place provided with a multiple-pulse vertoro (4), for that will exchange
Electricity is converted to and is provided with DC-DC converter, the voltage for changing the direct current inside direct current, the charging pile (3).
2. a kind of charging station system of DC charging according to claim 1, it is characterised in that：The distribution transformer
(1) be connected with the multiple-pulse vertoro (4), the multiple-pulse vertoro (4) by the service cable (2) with
The charging pile (3) is connected.
3. a kind of charging station system of DC charging according to claim 2, it is characterised in that：The multiple-pulse becomes repoussage
Stream device (4) is made up of multiple-pulse transformer and multiple three-phase rectifiers.
4. a kind of charging station system of DC charging according to claim 3, it is characterised in that：The multiple-pulse becomes repoussage
The secondary for flowing device (4) is 12 pulses, 18 pulses or 24 pulses.
5. a kind of charging station system of DC charging, including service cable (2) and at least one set of charging pile (3), it is characterised in that：
System also includes setting inside a distribution transformer rectifier (5) for being used to being converted to alternating current into direct current, the charging pile (3)
There is DC-DC converter, the voltage for changing the direct current.
6. a kind of charging station system of DC charging according to claim 5, it is characterised in that：The distribution transformer rectification
Device (5) includes one group of primary side winding (51), at least two groups vice-side windings (52) and at least two rectifier bridges (53), the secondary around
Group (52) is connected and corresponded with the rectifier bridge (53).
7. a kind of charging station system of DC charging according to claim 6, it is characterised in that：The primary side winding (51)
For delta connection.
8. a kind of charging station system of DC charging according to claim 7, it is characterised in that：The vice-side winding (52)
Including one group of secondary main winding (521) and at least one set of secondary auxiliary winding (522), the secondary main winding (521) connects for star
Method, the secondary main winding (521) and the phase difference of the secondary auxiliary winding (522) and multiplying for the vice-side winding (52) number
Product is 60 °.
9. a kind of charging station system of DC charging according to claim 8, it is characterised in that：The secondary main winding
(521) secondary auxiliary winding (522) described in line diameter ratio is thick.
10. a kind of charging station system of DC charging according to claim 9, it is characterised in that：The secondary main winding
(521) at least one set of tap is included.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199051.2U CN206344699U (en) | 2016-11-07 | 2016-11-07 | The charging station system of DC charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621199051.2U CN206344699U (en) | 2016-11-07 | 2016-11-07 | The charging station system of DC charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206344699U true CN206344699U (en) | 2017-07-21 |
Family
ID=59316166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621199051.2U Active CN206344699U (en) | 2016-11-07 | 2016-11-07 | The charging station system of DC charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206344699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106564397A (en) * | 2016-11-07 | 2017-04-19 | 上海泓语电气技术有限公司 | Direct-current charging type charging station system |
-
2016
- 2016-11-07 CN CN201621199051.2U patent/CN206344699U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106564397A (en) * | 2016-11-07 | 2017-04-19 | 上海泓语电气技术有限公司 | Direct-current charging type charging station system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230314 Address after: 518063 383, Phase I, Huiheng Building, 138 Gaoxin South 7th Road, High-tech Zone Community, Yuehai Street, Nanshan District, Shenzhen, Guangdong Province Patentee after: Shenzhen Lvdian DC Electrical Technology Co.,Ltd. Address before: Room 1410, Building 3, No. 2388, Xiupu Road, Pudong New Area, Shanghai, 201315 Patentee before: SHANGHAI HONYO ELECTRIC Co.,Ltd. |
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| TR01 | Transfer of patent right |