CN108312888B - Electric automobile charging station - Google Patents
Electric automobile charging station Download PDFInfo
- Publication number
- CN108312888B CN108312888B CN201810360205.9A CN201810360205A CN108312888B CN 108312888 B CN108312888 B CN 108312888B CN 201810360205 A CN201810360205 A CN 201810360205A CN 108312888 B CN108312888 B CN 108312888B
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- Prior art keywords
- electric vehicle
- charging station
- converter
- terminal
- energy storage
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- 238000004146 energy storage Methods 0.000 claims abstract description 38
- 238000005070 sampling Methods 0.000 claims abstract description 12
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/53—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
-
- 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
- B60L53/60—Monitoring or controlling charging stations
-
- 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
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application discloses an electric vehicle charging station, comprising: n unidirectional AC/DC converters connected to the AC bus, wherein N is more than or equal to 2; at least one power distribution device comprising n+3 switches, wherein 3 switches are connected end to end in sequence to form a delta connection; one end of the other N switches is connected to the first terminal of the triangular connection, and the other end of the other N switches is connected to the DC sides of the N unidirectional AC/DC converters one to one; the second terminal of the triangle connection is connected with the electric automobile; the third terminal of the triangle connection in all the power distribution devices is connected as a point; the energy storage device comprises an energy storage battery and a bidirectional DC/DC converter connected with the energy storage battery and the third terminal; a voltage sampling circuit for sampling voltage data on both sides of each switch; and a control unit connected with the voltage sampling circuit and the control end of each switch. The application improves the energy conversion efficiency by simply modifying the existing electric vehicle charging station.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging, in particular to an electric vehicle charging station.
Background
An electric vehicle charging station is a station that charges an electric vehicle. With the popularization of electric vehicles, electric vehicle charging stations are becoming important for the development of the vehicle industry and the energy industry.
The existing electric vehicle charging station is an alternating current micro-grid, and the energy storage device and the power grid are combined to charge the electric vehicle. As shown in fig. 1, the electric vehicle charging station specifically includes an AC bus L1, at least one power distribution device 10, and an energy storage device 20 and a plurality of unidirectional AC/DC converters 30 connected to the AC bus L1, wherein: the energy storage device 20 comprises an energy storage battery and a bi-directional AC/DC converter 202 connecting the energy storage battery and an AC bus L1; the power distribution device 10 includes a branch switch connected to the DC side of each unidirectional AC/DC converter 30 and a main switch K12 connected between all the branch switches and the electric vehicle, and after the main switch K12 is closed, the purpose of correctly outputting specific power can be achieved by adjusting the switch combination state of the branch switches.
In the electric vehicle charging station shown in fig. 1, the energy of the energy storage battery needs to be transferred to the electric vehicle through two-stage conversion of DC/AC and AC/DC, so that the energy conversion efficiency is low, and improvement is needed. However, the power electronic equipment and the cable path in the electric automobile charging station are relatively fixed, if the electric automobile charging station is to be modified, the replacement of the original power electronic equipment and the re-laying of the cable path can be eliminated, the modification engineering amount is large, and the investment cost is high.
Disclosure of Invention
In view of the above, the present invention provides an electric vehicle charging station to achieve an improvement in energy conversion efficiency by simply retrofitting an existing electric vehicle charging station.
An electric vehicle charging station, comprising:
An alternating current bus;
N unidirectional AC/DC converters connected to the AC bus, wherein N is more than or equal to 2;
At least one power distribution device comprising n+3 switching devices, wherein: the 3 switching devices are connected end to end in sequence to form triangular connection; one ends of the other N switching devices are connected to the first terminals of the triangular connection, and the other ends of the N switching devices are connected to the DC sides of the N unidirectional AC/DC converters one by one; the second terminal of the triangular connection is used for being connected with an electric automobile; the third terminal of the triangle connection in all the power distribution devices is connected as a point;
The energy storage device comprises an energy storage battery and a bidirectional DC/DC converter connected with the energy storage battery and a third terminal of the triangle connection;
the voltage sampling circuit is used for sampling voltage data on two sides of each switching device in the electric automobile charging station;
and the input end of the control unit is connected with the voltage sampling circuit, and the output end of the control unit is connected with the control end of each switching device in the electric vehicle charging station.
Optionally, the electric vehicle charging station further comprises:
A switching device connected between the third terminal and the energy storage battery;
and a switching device connected between the third terminal and the bidirectional DC/DC converter.
Optionally, the third terminal is further connected with a DC/DC converter for accessing the electric automobile.
Optionally, the DC/DC converter for accessing the electric automobile is a unidirectional DC/DC converter.
Optionally, the DC/DC converter for accessing the electric automobile is a bidirectional DC/DC converter.
Optionally, the control unit further comprises a communication interface which is communicated with the upper computer.
According to the technical scheme, the power electronic equipment in the existing electric automobile charging station is fully utilized, the original cable path is reserved as much as possible, the system is simple to reconstruct, and the investment cost is low. When the energy storage battery is actually applied, the energy storage battery can be used for transmitting power to meet the emergency charging requirement of the electric automobile under the condition of power grid faults, and the energy of the energy storage battery is directly transmitted to the electric automobile through DC/DC primary conversion, so that an AC/DC conversion link is omitted compared with the prior art, and the energy conversion efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of an electric vehicle charging station disclosed in the prior art;
Fig. 2 is a schematic structural diagram of an electric vehicle charging station according to an embodiment of the present invention;
Fig. 3 is a schematic structural diagram of another electric vehicle charging station according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 2, an embodiment of the present invention discloses an electric vehicle charging station, comprising:
An ac bus L1;
N unidirectional AC/DC converters 30 connected to the AC bus L1, N.gtoreq.2, FIG. 2 only taking 5 unidirectional AC/DC converters 30 as an example;
At least one power distribution apparatus 100, each power distribution apparatus 100 comprising n+3 switching devices, wherein: 3 switching devices are connected end to end in sequence to form a triangular connection (the three switching devices are defined as K12, K13 and K23 respectively, then the K12, K13 and K23 are connected end to form the triangular connection in sequence, one end of the K12 is connected with one end of the K13, the other end of the K13 is connected with one end of the K23, and the other end of the K23 is connected with the other end of the K12); one ends of the remaining N switching devices are connected to the first terminals of the delta-shaped junctions, and the other ends of the remaining N switching devices are connected to the DC sides of the N unidirectional AC/DC converters 100 one-to-one; the second terminal of the triangular connection is used for being connected with an electric automobile; the third terminal of the delta-connection in all power distribution devices 100 is tied to a point;
An energy storage device 40 comprising an energy storage battery, and a bi-directional DC/DC converter 401 connecting the energy storage battery and the third terminal of the delta-junction;
A voltage sampling circuit (not shown) for sampling voltage data across each switching device in the electric vehicle charging station;
And a control unit (not shown in the figure), wherein the input end of the control unit is connected with the voltage sampling circuit, and the output end of the control unit is connected with the control end of each switching device in the electric vehicle charging station.
The embodiment of the invention is obtained by modifying the original electric vehicle charging station (namely the electric vehicle charging station shown in fig. 1), fully utilizes the original power electronic equipment such as an alternating current bus L1, each unidirectional AC/DC converter 30, an energy storage battery and a power distribution device 10 (a switching device K12 in fig. 2 is a main switch K12 in the electric vehicle charging station shown in fig. 1; the rest N switching devices in fig. 2 are branch switches in the electric vehicle charging station shown in fig. 1), and the like, reserves the cable paths among the alternating current bus L1, the unidirectional AC/DC converters 30, the power distribution device 10 and the electric vehicle, and has higher equipment utilization rate for the original electric vehicle charging station. On the basis, in the embodiment of the invention, two switching devices K13 and K23 are added in each power distribution device 10 so as to form triangular connection with K12, and the energy storage device 40 is hung on the direct current side, so that reconstruction of the original electric vehicle charging station can be realized, the system transformation is simple, and the investment cost is low.
The working principle of the rebuilt electric vehicle charging station is as follows: for any one of the power distribution devices 100, when the switching device K12 is closed, the energy output by the unidirectional AC/DC converter 30 is delivered to the electric vehicle, so that the electric vehicle is charged by the power grid. When the switching device K23 is closed, the energy storage battery can be used for transmitting power to meet the emergency charging requirement of the electric automobile under the condition of power grid faults, and the energy of the energy storage battery is directly transmitted to the electric automobile through DC/DC primary conversion, so that an AC/DC conversion link is omitted compared with the prior art, and the energy conversion efficiency is improved. When the switching device K13 is closed, the energy output by the unidirectional AC/DC converter 30 is supplied to the energy storage device 40, completing the charging requirement of the energy storage battery.
In any one of the working modes, the control unit combines voltage signals at two ends of each switching device to determine which branch switches should be closed and which branch switches should be opened, so that the switch combination state of the branch switches is adjusted, and the purpose of correctly outputting specific power is achieved.
Optionally, the control unit is provided with a communication interface for communicating with the upper computer, for example, receiving a control instruction issued by the upper computer, and controlling the electric vehicle charging station to enter a corresponding working mode.
Optionally, a switching device K301 and a switching device K302 are added on the basis of the electric vehicle charging station shown in fig. 2, so as to obtain another electric vehicle charging station disclosed in the embodiment of the invention, as shown in fig. 3. In fig. 3, a switching device K301 is connected between the third terminal of the delta-junction and the energy storage battery, and a switching device K302 is connected between the third terminal of the delta-junction and the bidirectional DC/DC converter 401.
The technical solution shown in fig. 3 also enables the following functions to be implemented: when the switching device K301 is closed and the switching device K302 is opened, the electric energy from the direct current bus L1 directly charges the energy storage battery after passing through the unidirectional AC/DC converter 30 and the triangular connection structure; when the switching device K301 is opened and the switching device K302 is closed, the electric quantity of the energy storage battery is transmitted to the electric automobile through the bidirectional DC/DC converter 401 and the triangular connecting structure for the electric automobile.
Alternatively, the energy storage device 40 in any of the electric vehicle charging stations disclosed above may be replaced with an ac/dc hybrid micro-grid, which contains the energy storage device 40.
Optionally, any of the electric vehicle charging stations disclosed above further satisfies: the third terminal is further connected to a DC/DC converter 50 for connecting to an electric vehicle. The DC/DC converter 50 may be a unidirectional DC/DC converter or a bidirectional DC/DC converter. When the DC/DC converter 50 is a bidirectional DC/DC converter: compared with an electric vehicle in the system, which is not connected with the DC/DC converter 50, when the electric vehicle in the system is not running, the battery power of the electric vehicle connected with the DC/DC converter 50 can be discharged to the outside through the DC/DC converter 50, and conversely, when the battery of the electric vehicle connected with the DC/DC converter 50 needs to be full, the battery can acquire the power from the power grid or the energy storage device 40, so that the bidirectional charging and discharging functions of the electric vehicle connected with the DC/DC converter 50 are realized.
In summary, the invention fully utilizes the power electronic equipment in the existing electric vehicle charging station, retains the original cable path as much as possible, and has simple system reconstruction and low investment cost. When the energy storage battery is actually applied, the energy storage battery can be used for transmitting power to meet the emergency charging requirement of the electric automobile under the condition of power grid faults, and the energy of the energy storage battery is directly transmitted to the electric automobile through DC/DC primary conversion, so that an AC/DC conversion link is omitted compared with the prior art, and the energy conversion efficiency is improved.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments of the invention. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An electric vehicle charging station, comprising:
An alternating current bus;
N unidirectional AC/DC converters connected to the AC bus, wherein N is more than or equal to 2;
At least one power distribution device comprising n+3 switching devices, wherein: the 3 switching devices are connected end to end in sequence to form triangular connection; one ends of the other N switching devices are connected to the first terminals of the triangular connection, and the other ends of the N switching devices are connected to the DC sides of the N unidirectional AC/DC converters one by one; the second terminal of the triangular connection is used for being connected with an electric automobile; the third terminal of the triangle connection in all the power distribution devices is connected as a point;
The energy storage device comprises an energy storage battery and a bidirectional DC/DC converter connected with the energy storage battery and a third terminal of the triangle connection;
the voltage sampling circuit is used for sampling voltage data on two sides of each switching device in the electric automobile charging station;
and the control unit is connected with the input end of the control unit and the voltage sampling circuit, the output end of the control unit is connected with the control end of each switching device in the electric vehicle charging station, and the control unit is used for adjusting the switch combination state of the branch switch by combining voltage signals at two ends of each switching device and outputting specific power.
2. The electric vehicle charging station of claim 1, further comprising:
A switching device connected between the third terminal and the energy storage battery;
and a switching device connected between the third terminal and the bidirectional DC/DC converter.
3. An electric vehicle charging station according to claim 1 or 2, characterized in that the third terminal is further connected with a DC/DC converter for switching in an electric vehicle.
4. An electric vehicle charging station according to claim 3, characterized in that the DC/DC converter for switching in an electric vehicle is a unidirectional DC/DC converter.
5. An electric vehicle charging station according to claim 3, characterized in that the DC/DC converter for switching in an electric vehicle is a bi-directional DC/DC converter.
6. The electric vehicle charging station of claim 1 or 2, wherein the control unit further comprises a communication interface in communication with an upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810360205.9A CN108312888B (en) | 2018-04-20 | 2018-04-20 | Electric automobile charging station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810360205.9A CN108312888B (en) | 2018-04-20 | 2018-04-20 | Electric automobile charging station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108312888A CN108312888A (en) | 2018-07-24 |
| CN108312888B true CN108312888B (en) | 2024-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810360205.9A Active CN108312888B (en) | 2018-04-20 | 2018-04-20 | Electric automobile charging station |
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| CN (1) | CN108312888B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126658A (en) * | 2019-04-23 | 2019-08-16 | 全球能源互联网研究院有限公司 | A kind of bidirectional charger and its application method of multiplexed port |
| CN110803051B (en) * | 2019-11-28 | 2021-07-27 | 南京米特能源科技有限公司 | Energy storage type charging pile and charging system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361334A (en) * | 2011-10-17 | 2012-02-22 | 广东电网公司深圳供电局 | Photovoltaic energy storage electric automobile charging station system and method for switching state of energy storage system |
| CN208343973U (en) * | 2018-04-20 | 2019-01-08 | 青岛特来电新能源有限公司 | A kind of electric automobile charging station |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202488178U (en) * | 2012-02-22 | 2012-10-10 | 广东电网公司深圳供电局 | Photovoltaic energy storage electric vehicle charging station system based on direct current bus |
| KR101330349B1 (en) * | 2012-05-18 | 2013-11-15 | 엘에스산전 주식회사 | Apparatus and method for power conversion |
| CN103762703B (en) * | 2014-02-19 | 2016-04-27 | 国家电网公司 | Electric automobile fills and stores integrated charging station and charging/discharging thereof |
| CN105471055A (en) * | 2015-12-31 | 2016-04-06 | 西安特锐德智能充电科技有限公司 | Energy storage system for charging electric vehicle |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361334A (en) * | 2011-10-17 | 2012-02-22 | 广东电网公司深圳供电局 | Photovoltaic energy storage electric automobile charging station system and method for switching state of energy storage system |
| CN208343973U (en) * | 2018-04-20 | 2019-01-08 | 青岛特来电新能源有限公司 | A kind of electric automobile charging station |
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| CN108312888A (en) | 2018-07-24 |
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Address after: 266000 Shandong Province, Qingdao city Laoshan District Songling Road No. 336 Applicant after: Telai New Energy Co.,Ltd. Applicant after: QINGDAO TGOOD ELECTRIC Co.,Ltd. Address before: 266000 No. 826-29 East China Road, hi tech Zone, Shandong, Qingdao Applicant before: QINGDAO TELD NEW ENERGY Co.,Ltd. Applicant before: QINGDAO TGOOD ELECTRIC Co.,Ltd. |
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Effective date of registration: 20191211 Address after: Room 1001, 10 / F, No. 336, Songling Road, Laoshan District, Qingdao City, Shandong Province Applicant after: Qingdao teltel New Energy Technology Co.,Ltd. Address before: 266000 Shandong Province, Qingdao city Laoshan District Songling Road No. 336 Applicant before: Telai New Energy Co.,Ltd. Applicant before: QINGDAO TGOOD ELECTRIC Co.,Ltd. |
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