CN108099647A - Electric automobile stereo garage charging system based on 10kv direct current micro-grid - Google Patents
Electric automobile stereo garage charging system based on 10kv direct current micro-grid Download PDFInfo
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- CN108099647A CN108099647A CN201711282952.7A CN201711282952A CN108099647A CN 108099647 A CN108099647 A CN 108099647A CN 201711282952 A CN201711282952 A CN 201711282952A CN 108099647 A CN108099647 A CN 108099647A
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- 230000006855 networking Effects 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 15
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- 230000002457 bidirectional effect Effects 0.000 abstract description 5
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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
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
- B60L53/51—Photovoltaic 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
- 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
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
- B60L53/53—Batteries
-
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
-
- 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
-
- 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
- B60L2210/40—DC to AC converters
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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
- Y02T10/70—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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an electric vehicle three-dimensional parking garage charging system based on a 10kv direct current micro-grid, which comprises a direct current micro-grid sharing a primary direct current bus and an electric vehicle charger; the direct-current micro-grid comprises a direct-current power supply unit, a secondary direct-current bus and an energy storage unit, wherein the output end of the direct-current power supply unit is connected with the secondary direct-current bus through a first unidirectional DC/DC converter, and the secondary bus is connected to a primary direct-current bus through a first bidirectional DC/DC converter; the energy storage unit is connected to the primary direct current bus through a second bidirectional DC/DC converter; the electric vehicle charger comprises an electric vehicle charging and replacing unit and a whole vehicle charging and replacing pile, wherein the electric vehicle charging and replacing unit is connected to the first-level direct-current bus through a third bidirectional DC/DC converter, and the whole vehicle charging and replacing pile is directly connected to the first-level direct-current bus. The invention has simpler and more convenient connection form, does not need to consider the problems of frequency, phase and the like of the output voltage of the alternating current power supply, saves a plurality of current transformation devices compared with an alternating current micro-grid, thereby greatly reducing the cost and the loss of the system.
Description
Technical field
The invention belongs to electric vehicle charging technique fields, and in particular to a kind of electric vehicle based on 10kv direct-current micro-grids
Parking systems charging system.
Background technology
With global energy crisis and worsening environment, the development of fuel-engined vehicle industry is seriously constrained.Electronic vapour
The limit that vehicle generates the development for becoming electric vehicle again as the main direction of development of automobile, but the problem of charging hardly possible and parking difficulty
System.China has started in a organized way, in a planned way to promote the research and development and industrialization of electric vehicle.At present, electric vehicle in the market
Charging equipment has two kinds of charging station and charging pile.Using charging pile mode, the charging time is long and cannot save floor occupying area；Using
Charging station mode, investment is big, it is few to build quantity, is only suitable for the public transport electric vehicle of demonstration operation at present.
Three-dimensional parking device efficiently solve the problems, such ass that soil supply and demand is nervous, and species has lifting cross-sliding type, tunnel heap
Pile formula, vertical etc..But three-dimensional parking device currently on the market can only all stop, it is impossible to charge.If it can allow electronic
Energy automatic charging when automobile is parked in garage, it will largely promote the development of electric vehicle industry.
The content of the invention
In view of the above-mentioned problems, the present invention proposes a kind of electric vehicle parking systems Charging based on 10kv direct-current micro-grids
System carries out DC charging using direct-current micro-grid, and type of attachment is more simple, conveniently, is not required to consideration AC power output voltage
The problems such as frequency, phase, eliminates many converter plants compared to exchange micro-capacitance sensor, thus greatly reduces system cost and damage
Consumption.
It realizes above-mentioned technical purpose, reaches above-mentioned technique effect, the invention is realized by the following technical scheme：
A kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids, including common level-one dc bus
Direct-current grid and electric automobile battery charger；It is characterized in that：
The direct-current grid includes at least one DC power supply unit, two level dc bus and at least one energy storage list
Member, the output terminal of the DC power supply unit are connected by the first unidirectional DC/DC converters with two level dc bus, the two level
Busbar is connected to level-one dc bus by the first two-way DC/DC converters, and the direct current signal of DC power supply unit output passes through
Two level dc bus is linked into after first unidirectional DC/DC converters, level-one is then accessed by the first two-way DC/DC converters again
Dc bus；The energy-storage units are connected to level-one dc bus by the second two-way DC/DC converters；
The electric automobile battery charger includes electric vehicle charging and conversion electric unit and vehicle charge and discharge stake, the electric vehicle fill
It changes electric unit and level-one dc bus is connected to by the 3rd two-way DC/DC converters, the vehicle charge and discharge stake is directly connected to
Level-one dc bus.
Further, a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids, is also wrapped
The first two-way DC/AC converters are included, level-one dc bus is connected by the first two-way DC/AC converters with points of common connection,
The points of common connection is connected with AC network.
Further, a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids, is also wrapped
Include direct-current microgrid energy management system, the direct-current microgrid energy management system respectively with the first unidirectional DC/DC converters, first
Two-way DC/DC converters, the second two-way DC/DC converters, the 3rd two-way DC/DC converters, the first two-way DC/AC converters,
Electric vehicle charging and conversion electric unit is connected with vehicle charge and discharge stake, controls the operational mode of direct-current grid.
Further, the direct-current grid further includes DC load, and the DC load is turned by the second unidirectional DC/DC
Parallel operation is connected with two level dc bus, and the second unidirectional DC/DC converters are connected with direct-current microgrid energy management system.
Further, the operational mode includes：Networking operation pattern, networking current-limit mode and independent operation mode；
The networking operation pattern is：Direct-current grid is connected with bulk power grid, the constancy of level-one DC bus-bar voltage by
First two-way DC/AC converters control；
It is described networking current-limit mode be：When exchanging power beyond first two-way between direct-current grid and AC network
When the maximum of DC/AC converters bears to load or Voltage Drop failure occurs for Alternating Current Power Supply network so that the first two-way DC/
AC converter output powers are restricted, and system enables networking current-limit mode；
The independent operation mode is：Direct-current grid is disconnected with AC network, and level-one DC bus-bar voltage is micro- by direct current
DC power supply unit or energy-storage units control in power grid.
Further, the DC power supply unit is photovoltaic battery plate.
Further, the photovoltaic battery plate is disposed around the outside of the electric vehicle parking systems.
Further, the energy-storage units are energy-storage battery.
Beneficial effects of the present invention：
(1) present invention carries out DC charging using direct-current micro-grid, and type of attachment is more simple, conveniently, is not required to consider to exchange
The problems such as frequency of electric power output voltage, phase, eliminates many converter plants, so as to substantially reduce compared to exchange micro-capacitance sensor
System cost and loss.
(2) present invention controls direct-current micro-grid using direct-current microgrid energy management system, so that electric vehicle solid is filled
There are three types of operational modes, i.e. networking operation pattern, networking current-limit mode and independent operation mode for electric storehouse tool.
(3) control of the present invention to direct-current micro-grid, is solely dependent upon busbar voltage, it is easy to accomplish the coordination control between each micro battery
System.
(4) the electric vehicle charging and conversion electric device in the present invention is connected by a DC/DC conversion with level-one dc bus, energy
Enough achieve the effect that peak load shifting, energy-saving and emission-reduction, improve utilization rate of equipment and installations and reduce system cost.
Description of the drawings
Fig. 1 is the system block diagram of the electric vehicle parking systems electrical system the present invention is based on 10kv direct-current micro-grids；
Fig. 2 is the operation control hierarchy structure diagram of direct-current microgrid energy management system；
Fig. 3 is the structure diagram of two-way DC/DC converters.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The application principle of the present invention is explained in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids, micro- including direct current
The direct-current grid and electric automobile battery charger of network energy management system, altogether level-one dc bus；Direct-current grid passes through level-one
Dc bus is connected into electric automobile battery charger and carries out DC charging；
The direct-current grid is to be connected all micro batteries by public level-one dc bus in the form of DC distribution
Pick up the individually controllable system come；It includes at least one DC power supply unit, two level dc bus, at least one energy-storage units
And DC load；
Since the DC power supply unit (photovoltaic battery plate) in direct-current grid and DC load have different current standards,
It is connect firstly the need of the unidirectional converter primary strains of DC-DC are used to two level dc bus, then by DC-DC bidirectional converter rectifications
Enter level-one dc bus, using this two-layer equation bus structure, level-one busbar is accessed by DC/DC using two level busbar, is influenced
Busbar voltage can be better adapted to that there is the electric vehicle solid of the common DC bus of multiple voltage grade power demand to fill
In electric storehouse；
Specifically：The output terminal of the DC power supply unit passes through the first unidirectional DC/DC converters and two level dc bus
It is connected, the two level busbar is connected to level-one dc bus by the first two-way DC/DC converters, i.e. DC power supply unit exports
Direct current signal be linked into two level dc bus after the first unidirectional DC/DC converters, then pass through the first two-way DC/DC again
Converter accesses level-one dc bus；The energy-storage units are connected to level-one dc bus by the second two-way DC/DC converters；
The DC load is linked into two level dc bus by the second unidirectional DC/DC converters, DC bus powered by two level, described
DC load is that the system leaves the direct current electrical interface tackled under actual condition, such as direct current cabinet；The DC power supply unit
For photovoltaic battery plate or any other device that can realize direct current supply, in embodiments of the present invention, the Charging apparatus it is outer
It encloses to be built by several photovoltaic battery plates and form；The energy-storage units are energy-storage battery or any other device that can realize energy storage
Part.Compared to exchanging micro-capacitance sensor, the type of attachment of the direct-current grid in the embodiment of the present invention is more simple, conveniently, is not required to examine
The problems such as considering frequency, the phase of AC power output voltage, eliminates many converter plants, and system cost and loss are dropped significantly
It is low；Moreover, the control to direct-current grid, is solely dependent upon level-one DC bus-bar voltage, it is easy to accomplish the coordination between each micro battery
Control, the micro battery refer to DC power supply unit and energy-storage units.
The electric automobile battery charger includes electric vehicle charging and conversion electric unit (change under power mode and charger is concentrated in standing)
With vehicle charge and discharge stake (charger i.e. under charge mode), the electric vehicle charging and conversion electric unit passes through the 3rd two-way DC/DC
Converter is connected to level-one dc bus, and the vehicle charge and discharge stake is directly connected to level-one dc bus.The electric vehicle
Charging and conversion electric unit turns DC conversion by a DC and is connected with level-one dc bus, reaches peak load shifting, solves distributed new
Efficiently receive, reduce the grid-connected impact to bulk power grid of distributed new effect.
The level-one dc bus is connected by the first two-way DC/AC converters with points of common connection, the public company
Contact is connected with AC network, realizes the grid-connected free switching with island mode；Specifically, when disconnecting points of common connection, then directly
Stream micro-capacitance sensor enters island mode, it is possible to directly control control direct-current grid by level-one DC bus-bar voltage；The present invention
In embodiment, the first two-way DC/AC converters are using the numerically controlled two-way DC/AC of TMS320F28335 types DSP
Power inverter.
As shown in Fig. 2, the direct-current microgrid energy management system respectively with the first unidirectional DC/DC converters, second unidirectional
DC/DC converters, the first two-way DC/DC converters, the second two-way DC/DC converters, the 3rd two-way DC/DC converters, first
Two-way DC/AC converters, electric vehicle charging and conversion electric unit are connected with vehicle charge and discharge stake, control the operation mould of direct-current grid
Formula, in the present invention, progress control method and algorithm in the direct-current microgrid energy management system can pass through existing skill
Art is realized, does not do excessive detailed description in the present invention, its control with other devices in present system is only protected in the present invention
Relation；
The operational mode includes：Networking operation pattern, networking current-limit mode and independent operation mode；
The networking operation pattern is connected with bulk power grid for direct-current grid, and the constancy of level-one DC bus-bar voltage is by the
One two-way DC/AC converters control；
The networking current-limit mode is when the power that exchanges between direct-current grid and AC network exceeds the first two-way DC/
When the maximum of AC converters bears to load or Voltage Drop failure occurs for supply network so that bidirectional converter output power
It is restricted, system enables networking current-limit mode；
The independent operation mode disconnects for direct-current grid and AC network, and level-one DC bus-bar voltage is by DC micro-electric
DC power supply unit or energy-storage units control in net.
As shown in figure 3, the electric vehicle charging and conversion electric unit established in DC micro-electric net side converts and direct current through a DC/DC
Busbar is connected, and both electric energy was stored in the power battery in charging pile, is carried by way of replacing power battery for electric vehicle
For energy, and micro-capacitance sensor energy-storage battery (i.e. electric automobile power battery is as the reversed power grid electric discharge of energy storage) can be served as, also may be used
With the electric energy foldback telegram in reply net that when electricity price is higher, will be stored in percentage of batteries.It plays and stability contorting is carried out to micro-capacitance sensor, is improved
Power quality and the effect to parking systems uninterrupted power supply.Two-way DC/DC converters are as energy-storage battery and level-one direct current
Interface between busbar is to change and fill and put the core that (can select model CEV2000 change to fill put) realizes to and fro flow of power
Center portion point.Changing for charging system is changed effectively to promote direct current and fills flexibility and service efficiency, so as to the storage to different voltages grade
Energy, distributed generation resource and load access are adapted to.The public pole dc bus of two energy-storage units in charging and conversion electric system, and
The inside of entire straight-flow system can form two relatively independent current supply circuits, and this structure is used for the electricity of common DC bus
Electrical automobile, which changes, to be filled and puts, and can effectively promote the reliability of transmission system.
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids, including the straight of common level-one dc bus
Flow micro-capacitance sensor and electric automobile battery charger；It is characterized in that：
The direct-current grid includes at least one DC power supply unit, two level dc bus and at least one energy-storage units, institute
The output terminal for stating DC power supply unit is connected by the first unidirectional DC/DC converters with two level dc bus, the two level busbar
Level-one dc bus is connected to by the first two-way DC/DC converters, the direct current signal of DC power supply unit output passes through first
Two level dc bus is linked into after unidirectional DC/DC converters, level-one direct current is then accessed by the first two-way DC/DC converters again
Busbar；The energy-storage units are connected to level-one dc bus by the second two-way DC/DC converters；The electric automobile battery charger
Including electric vehicle charging and conversion electric unit and vehicle charge and discharge stake, the electric vehicle charging and conversion electric unit is directly connected to level-one direct current
Busbar；The vehicle charge and discharge stake is connected to level-one dc bus by the 3rd two-way DC/DC converters.
2. a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids according to claim 1,
It is characterized in that：Further include the first two-way DC/AC converters, the first two-way DC/AC converters by level-one dc bus with it is public
Tie point is connected altogether, and the points of common connection is connected with AC network.
3. a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids according to claim 2,
It is characterized in that：Further include direct-current microgrid energy management system, the direct-current microgrid energy management system respectively with the first unidirectional DC/
It is DC converters, the first two-way DC/DC converters, the second two-way DC/DC converters, the 3rd two-way DC/DC converters, first two-way
DC/AC converters, electric vehicle charging and conversion electric unit are connected with vehicle charge and discharge stake, control the operational mode of direct-current grid.
4. a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids according to claim 3,
It is characterized in that：The direct-current grid further includes DC load, and the DC load passes through the second unidirectional DC/DC converters and two
Grade dc bus is connected, and the second unidirectional DC/DC converters are connected with direct-current microgrid energy management system.
5. a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids according to claim 4,
It is characterized in that：The operational mode includes：Networking operation pattern, networking current-limit mode and independent operation mode；
The networking operation pattern is：Direct-current grid is connected with bulk power grid, and the constancy of level-one DC bus-bar voltage is by first
Two-way DC/AC converters control；
It is described networking current-limit mode be：When the power that exchanges between direct-current grid and AC network exceeds the first two-way DC/AC
When the maximum of converter bears to load or Voltage Drop failure occurs for Alternating Current Power Supply network so that the first two-way DC/AC conversions
Device output power is restricted, and system enables networking current-limit mode；
The independent operation mode is：Direct-current grid is disconnected with AC network, and level-one DC bus-bar voltage is by direct-current grid
Interior DC power supply unit or energy-storage units control.
6. a kind of electric vehicle parking systems electricity based on 10kv direct-current micro-grids according to any one of claim 1-5
Gas system, it is characterised in that：The DC power supply unit is photovoltaic battery plate.
7. a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids according to claim 6,
It is characterized in that：The photovoltaic battery plate is disposed around the outside of the electric vehicle parking systems.
8. a kind of electric vehicle parking systems electrical system based on 10kv direct-current micro-grids according to claim 1,
It is characterized in that：The energy-storage units are energy-storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282952.7A CN108099647A (en) | 2017-12-07 | 2017-12-07 | Electric automobile stereo garage charging system based on 10kv direct current micro-grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282952.7A CN108099647A (en) | 2017-12-07 | 2017-12-07 | Electric automobile stereo garage charging system based on 10kv direct current micro-grid |
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| CN108099647A true CN108099647A (en) | 2018-06-01 |
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| CN201711282952.7A Pending CN108099647A (en) | 2017-12-07 | 2017-12-07 | Electric automobile stereo garage charging system based on 10kv direct current micro-grid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417038A (en) * | 2019-07-15 | 2019-11-05 | 海通科创(深圳)有限公司 | The power supply system and method for stereo garage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011083545A1 (en) * | 2010-01-06 | 2011-07-14 | ビーエルデーオリエンタル株式会社 | Charging control apparatus and charging system using charging control apparatus |
| CN205017058U (en) * | 2015-09-22 | 2016-02-03 | 广东安和威电力建设有限公司 | Fill and trade two segmentation dc bus power supply system of electric formula charging station |
| CN105914799A (en) * | 2016-05-03 | 2016-08-31 | 北京北变微电网技术有限公司 | V2G (Vehicle-to-grid) AC-DC mixed micro grid power supply system and structure |
| CN106026168A (en) * | 2016-06-28 | 2016-10-12 | 江苏现代能源微网系统有限公司 | Energy management strategy of wind and solar energy-storage intelligent energy tower |
-
2017
- 2017-12-07 CN CN201711282952.7A patent/CN108099647A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011083545A1 (en) * | 2010-01-06 | 2011-07-14 | ビーエルデーオリエンタル株式会社 | Charging control apparatus and charging system using charging control apparatus |
| CN205017058U (en) * | 2015-09-22 | 2016-02-03 | 广东安和威电力建设有限公司 | Fill and trade two segmentation dc bus power supply system of electric formula charging station |
| CN105914799A (en) * | 2016-05-03 | 2016-08-31 | 北京北变微电网技术有限公司 | V2G (Vehicle-to-grid) AC-DC mixed micro grid power supply system and structure |
| CN106026168A (en) * | 2016-06-28 | 2016-10-12 | 江苏现代能源微网系统有限公司 | Energy management strategy of wind and solar energy-storage intelligent energy tower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417038A (en) * | 2019-07-15 | 2019-11-05 | 海通科创(深圳)有限公司 | The power supply system and method for stereo garage |
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