CN106564397A - Direct-current charging type charging station system - Google Patents
Direct-current charging type charging station system Download PDFInfo
- Publication number
- CN106564397A CN106564397A CN201610975773.0A CN201610975773A CN106564397A CN 106564397 A CN106564397 A CN 106564397A CN 201610975773 A CN201610975773 A CN 201610975773A CN 106564397 A CN106564397 A CN 106564397A
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- Prior art keywords
- charging
- station system
- charging station
- distribution transformer
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- 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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- 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)
- Rectifiers (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a direct-current charging type charging station system. The direct-current charging type charging station system comprises a distribution transformer (1), a power supply cable (2) and at least one set of charging piles (3). A multi-pulse transformer rectifier (4) is arranged on the distribution transformer (1), or the distribution transformer and the multi-pulse transformer rectifier are integrated into a power distribution transformer rectifier for converting the alternate current into the direct current. A direct-current-direct-current converter for converting the direct-current voltage is arranged in each charging pile (3). By the adoption of the direct-current charging type charging station system, the reliability of the system can be improved greatly, the conversion efficiency of electric energy can be improved, and the power loss is reduced.
Description
Technical field
The present invention relates 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, as the electric automobile of new-energy automobile the favor of masses is increasingly subject to.It is right
For electric automobile, quick charge stake is indispensable configuration.Existing electric vehicle rapid charging stake typically adopts three
Cross streams are powered, and are charged a battery after two stage power conversion.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 converts
It is that internal high voltage direct current is converted to charging current required for battery, becomes typically by an isolated DC/DC
Parallel operation is completed.Fig. 2 shows the schematic diagram of a typical charging station, and in a usual charging station multiple charging piles are provided with,
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.Power converter link includes that the AC/AC of distribution transformer is converted, the AC/DC conversion inside charging pile, and charges
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 the common AC/DC in each charging pile inside
Ring change section is extracted outside charging pile, is combined into a powerful AC/DC translation circuit, only retains original 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 circuit only affects 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 affect 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 system reliability to bring up to n times, that is to say, that it is difficult to system reliability is lifted
To the level same with ac power supply system.
Therefore, it is necessary to further be improved existing charging station system.
The content of the invention
The present invention is to overcome the charging station system of prior art mesohigh DC charging due to by AC/DC transform parts
Extract charging pile outside and cause the shortcoming that the reliability of system declines to a great extent, so as to provide a kind of charging station of DC charging
System, can effectively improve the reliability of system, and can improve the conversion efficiency of electric energy, reduce power consumption.
The present invention provides a kind of charging station system of DC charging, including distribution transformer, service cable and at least one
Group charging pile, is provided with a multiple-pulse vertoro at distribution transformer, for alternating current to be converted to into direct current, charges
Stake is internal to be provided with DC-DC converter, for changing galvanic voltage.
A kind of charging station system of DC charging of the present invention, it is preferred that, distribution transformer and multiple-pulse
Vertoro is connected, and multiple-pulse vertoro is connected by service cable with charging pile.
A kind of charging station system of DC charging of the present invention, it is preferred that, multiple-pulse vertoro by
Multiple-pulse transformer and multiple three-phase rectifiers are constituted.
A kind of charging station system of DC charging of the present invention, it is preferred that, multiple-pulse vertoro
Secondary is 12 pulses, 18 pulses or 24 pulses.
The present invention provides a kind of charging station system of DC charging, including one be used to being converted in alternating current it is galvanic
Distribution transformer rectifier, service cable and least one set charging pile, are provided with DC-DC converter inside charging pile, for turning
Change galvanic voltage.
A kind of charging station system of DC charging of the present invention, it is preferred that, distribution transformer rectifier includes
One group of primary side winding, at least two groups vice-side windings and at least two rectifier bridges, the vice-side winding be connected with the rectifier bridge and
Correspond.
A kind of charging station system of DC charging of the present invention, it is preferred that, primary side winding connects for triangle
Method.
A kind of charging station system of DC charging of the present invention, it is preferred that, vice-side winding includes one group of pair
Side main winding and least one set secondary auxiliary winding, secondary main winding is star connection, the phase of secondary main winding and secondary auxiliary winding
The product of potential difference and vice-side winding number is 60 °.
A kind of charging station system of DC charging of the present invention, it is preferred that, the line diameter ratio of secondary main winding
The secondary auxiliary winding is thick.The exchange capacity and D.C. capacity of output, secondary main winding can be adjusted by the adjustment to line footpath
Line diameter ratio secondary auxiliary winding it is thick, AC power can be provided simultaneously.
A kind of charging station system of DC charging of the present invention, it is preferred that, secondary main winding is included at least
One group of tap.Secondary main winding carries out tap and is designed to, by the different voltage of different tap outputs, increased user's
It is selective.
The present invention due to by AC/DC translation circuits using by transformer and rectifier realization passive circuit of not controlling come generation
For three-phase pfc circuit, its main circuit part only has transformer and rectifier bridge, can effectively improve the reliability of system.
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 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
Pressure rectifier；51st, primary side winding；52nd, vice-side winding；521st, secondary main winding；522nd, secondary auxiliary winding；53rd, rectifier bridge.
Specific embodiment
Below in conjunction with accompanying drawing, the charging station system of the DC charging of the present invention is made further specifically with specific embodiment
It is bright.It should be understood that following examples are merely to illustrate the present invention not for restriction the scope of the present invention.
Embodiment 1
As shown in Figures 4 and 5, the present invention provides a kind of charging station system of DC charging, including distribution transformer 1, power supply
Cable 2 and six groups of charging piles 3, are provided with a multiple-pulse vertoro 4 at distribution transformer 1, for alternating current to be turned
Direct current is changed to, inside charging pile 3 DC-DC converter is provided with, for changing galvanic voltage.Distribution transformer 1 with
Multiple-pulse vertoro 4 is connected, the voltage of the alternating current for transition electric power system to be provided, multiple-pulse vertoro 4
It is connected with charging pile 3 by service cable 2, multiple-pulse vertoro 4 is by multiple-pulse transformer and multiple three-phase rectifier structures
Into 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 improve power converter efficiency to 96.5% by original 96.0%, and increase rate is
12.5%.
Embodiment 2
Such as Fig. 6~Shown in 7, the present invention provides a kind of charging station system of DC charging, including one is used for alternating current
Galvanic distribution transformer rectifier 5, service cable 2 and six groups of charging piles 3 are converted to, inside charging pile 3 DC-to-dc is provided with
Converter, for changing galvanic voltage.Distribution transformer rectifier 5 include one group of primary side winding 51, at least two groups secondary around
The rectifier bridge 53 of group 52 and at least two, vice-side winding 52 is connected and corresponds with rectifier bridge 53；Primary side winding 51 is triangle
Connection；Vice-side winding 52 includes one group of secondary main winding 521 and least one set secondary auxiliary winding 522, and secondary main winding 521 is star
Shape connection, secondary auxiliary winding 522 is the phase place of delta connection or wye connection, secondary main winding 521 and secondary auxiliary winding 522
The product of difference and vice-side winding number is 60 °；Secondary main winding 521 includes least one set tap.
The present embodiment can improve power converter efficiency to 97.5% by original 96.0%, and increase rate is
37.5%.
It is described above to be merely exemplary for the purpose of the present invention, and it is nonrestrictive, and those of ordinary skill in the art understand,
In the case of the spirit and scope limited without departing from claim, any modification, change or the equivalents that can be made are all
To fall within the protection domain of invention.
Claims (10)
1. a kind of charging station system of DC charging, including distribution transformer (1), service cable (2) and least one set charge
Stake (3), it is characterised in that：A multiple-pulse vertoro (4) is provided with the distribution transformer (1) place, for exchanging
Electricity is converted to direct current, DC-DC converter is provided with inside the charging pile (3), for changing the galvanic voltage.
2. the charging station system of a kind 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. the charging station system of a kind 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. the charging station system of a kind of DC charging according to claim 3, it is characterised in that：The multiple-pulse becomes repoussage
The secondary of stream 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 least one set charging pile (3), it is characterised in that：
System also includes that one is used to for alternating current to be converted to galvanic distribution transformer rectifier (5), sets inside the charging pile (3)
There is DC-DC converter, for changing the galvanic voltage.
6. the charging station system of a kind 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 corresponds with the rectifier bridge (53).
7. the charging station system of a kind of DC charging according to claim 6, it is characterised in that：The primary side winding (51)
For delta connection.
8. the charging station system of a kind 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 least one set 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 taking advantage of for the vice-side winding (52) number
Product is 60 °.
9. the charging station system of a kind of DC charging according to claim 6～8 any one, it is characterised in that：It is described
Secondary auxiliary winding (522) described in the line diameter ratio of secondary main winding (521) is thick.
10. the charging station system of a kind of DC charging according to claim 9, it is characterised in that：The secondary main winding
(521) including least one set tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975773.0A CN106564397A (en) | 2016-11-07 | 2016-11-07 | Direct-current charging type charging station system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975773.0A CN106564397A (en) | 2016-11-07 | 2016-11-07 | Direct-current charging type charging station system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106564397A true CN106564397A (en) | 2017-04-19 |
Family
ID=58540262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610975773.0A Pending CN106564397A (en) | 2016-11-07 | 2016-11-07 | Direct-current charging type charging station system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106564397A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318740A (en) * | 2018-08-24 | 2019-02-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Wisdom street lamp and charging pile integration apparatus based on DC power-supply system |
| CN112821765A (en) * | 2019-11-15 | 2021-05-18 | 武汉新能源汽车工业技术研究院有限公司 | Method and system for power conversion of multi-modular electric vehicle charging station |
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| CN103532402A (en) * | 2013-09-18 | 2014-01-22 | 四川英杰电气股份有限公司 | Power supply power distribution system and method |
| CN104092270A (en) * | 2014-06-06 | 2014-10-08 | 湖南大学 | Direct-current power supply system applicable to pure electric bus charging stations and charging station thereof |
| CN105141019A (en) * | 2015-09-25 | 2015-12-09 | 西安特锐德智能充电科技有限公司 | Electric vehicle charging system |
| CN105762899A (en) * | 2014-12-17 | 2016-07-13 | 深圳市深泰明科技有限公司 | Charging system for AC-DC distribution intelligent charging station |
| CN105932893A (en) * | 2016-06-24 | 2016-09-07 | 南京航空航天大学 | Multi-pulse rectifier substation system for electric vehicle direct current charging station |
| CN206344699U (en) * | 2016-11-07 | 2017-07-21 | 上海泓语电气技术有限公司 | The charging station system of DC charging |
-
2016
- 2016-11-07 CN CN201610975773.0A patent/CN106564397A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532402A (en) * | 2013-09-18 | 2014-01-22 | 四川英杰电气股份有限公司 | Power supply power distribution system and method |
| CN104092270A (en) * | 2014-06-06 | 2014-10-08 | 湖南大学 | Direct-current power supply system applicable to pure electric bus charging stations and charging station thereof |
| CN105762899A (en) * | 2014-12-17 | 2016-07-13 | 深圳市深泰明科技有限公司 | Charging system for AC-DC distribution intelligent charging station |
| CN105141019A (en) * | 2015-09-25 | 2015-12-09 | 西安特锐德智能充电科技有限公司 | Electric vehicle charging system |
| CN105932893A (en) * | 2016-06-24 | 2016-09-07 | 南京航空航天大学 | Multi-pulse rectifier substation system for electric vehicle direct current charging station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318740A (en) * | 2018-08-24 | 2019-02-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Wisdom street lamp and charging pile integration apparatus based on DC power-supply system |
| CN112821765A (en) * | 2019-11-15 | 2021-05-18 | 武汉新能源汽车工业技术研究院有限公司 | Method and system for power conversion of multi-modular electric vehicle charging station |
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Application publication date: 20170419 |