CN201839050U - Electric vehicle charging station with energy storage device - Google Patents
Electric vehicle charging station with energy storage device Download PDFInfo
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- CN201839050U CN201839050U CN2010205930038U CN201020593003U CN201839050U CN 201839050 U CN201839050 U CN 201839050U CN 2010205930038 U CN2010205930038 U CN 2010205930038U CN 201020593003 U CN201020593003 U CN 201020593003U CN 201839050 U CN201839050 U CN 201839050U
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Abstract
The utility model discloses an electric vehicle charging station with an energy storage device, which comprises an AC (alternating current) power grid, a monitoring device, an energy storage device and a charging device, wherein, the AC power grid sequentially passes through a high pressure relay protection cabinet, a three-phase transformer and a low pressure relay protection cabinet to be accessed to the input end of the energy storage device; the output end of the energy storage device is connected with the input end of the charging device through a switch; and the monitoring device monitors and controls the running state of the AC power grid, the energy storage device and the charging device. The charging station of the utility model is applicable to quick charging of various types of electric vehicles, and can effectively overcome the great current shock on the power grid caused by fast charging of the electric vehicle, thereby ensuring safe and smooth running of the electric power system. The construction cost of the electric vehicle charging station is low, the maintenance is simple and convenient, and the economic benefit is high.
Description
Technical field
The utility model relates to a kind of electric automobile charging station that has energy storage device, belongs to electric automobile and technical field of power systems.
Background technology
Along with the enhancing gradually of serious day by day and people's environmental consciousness of energy crisis, the clean energy resource power vehicle has obtained broad development and has applied, wherein especially with the Development Technology of electric automobile maturation the most.The charging form of electric automobile mainly can be divided into the replacing battery pack and charging station/stake is charged these two kinds.
Because the power of vehicle requires and size differs, vehicle-mounted space is limited and arrange that difference is very big, therefore the required battery capacity size of different vehicle, the configuration and the size of battery pack are difficult to standardization, usually the charging modes of employing replacing battery pack generally is applicable to the vehicle power supply of particular types, such as the motorbus that enough spaces are arranged or the haulage vehicle that adopt modular standard cell group; Or specify the charging station of changing battery pack specially for the motor vehicle of some types of a certain company.This mode scope of application is little, versatility is poor, can't satisfy the charging demand of motor vehicle of all kinds.
And the charging station of vehicle/stake charging modes almost is applicable to the charging of all motor vehicles.Charging at present has two kinds of mode of operations: normal speed charging modes (being full of in general 6～8 hours), and the most generally the electric household vehicle is in parking lot charging down time; Quick charge, motor vehicle at charging station with the electric energy that was full of more than 80% in 15～20 minutes.Yet adopt the normal speed charging, the charging rate of vehicle is too slow, is difficult to satisfy the ageing requirement of commerial vehicle and long-distance operational vehicle.Compare with the normal speed charging modes, the quick charge technology can satisfy the ageing requirement of vehicle, but several normal charging currents that decuple of the charging current of its each car, can bring rush of current to electrical network, when a large amount of electric automobiles concentrates on charging station quick charge simultaneously, energy required in short time is very big, can produce the huge impact electric current, the stability and safety operation of electrical network will be threatened, even meeting damaged line, grid equipments such as transformer, therefore relevant transformer station and circuit certainly will will carry out dilatation, but the average utilization of the transformer station of dilatation and capacity of trunk is very low, does not calculate economically.The charging station quick charge is general many on the daytime of peak of power consumption in addition, not only can increase the burden of electrical network, the electric cost height.
How both economic, efficient, safety and solve problem that electric automobile utilizes the charging station charging reliably for the applying of motor vehicle, and guarantee economy, the safety of operation of power networks and efficiently be significant.Therefore be necessary to develop a kind of charging station scheme charging station be excessive to the charging impulse current of electrical network to solve effectively, transformer station and a series of Technological Economy difficult problems such as capacity of trunk is excessive and utilance is low.
The utility model content
Technical problem:
The purpose of this utility model is, when satisfying the electric vehicle rapid charging demand, when overcoming electric vehicle rapid charging the electric power that electrical network caused is impacted, significantly reduce required substation capacity of electric automobile charging station and capacity of trunk, guarantee power network safety operation, designed a kind of electric automobile charging station that has energy storage device that is applicable to that all kinds charging electric vehicle is used, and charging station operation is optimized, from the price difference that discharges and recharges, obtain extra economic benefit, also can be used for whole electrical network peak clipping Pinggu.
Technical scheme:
The utility model has the electric automobile charging station of energy storage device, is made of AC network, watch-dog, energy storage device and charging device; Wherein, AC network inserts the input of energy storage device successively by high pressure relaying protection cabinet, three-phase transformer and low pressure relaying protection cabinet; the output of energy storage device is connected with the input of charging device by switch, the running status of watch-dog monitoring and control AC network, energy storage device and charging device.
Preferably, described energy storage device has n energy storage device group in parallel to constitute, and each energy storage device group is constituted by the energy-storage travelling wave tube of single series or dissimilar energy-storage travelling wave tubes, and wherein n is the natural number greater than 1.
Preferably, the energy-storage travelling wave tube of described single series is a lithium titanate battery energy storage device.
Preferably, described dissimilar energy-storage travelling wave tube is super capacitor and lithium titanate battery combination.
Preferably, described charging device has n charging device group in parallel to constitute, and the charging device group is made of on-off controller serial connection charging pile.
Beneficial effect:
Provided by the utility modelly have the electric automobile charging station of energy storage device and the beneficial effect of operation and collocation method mainly contains:
1. can effectively alleviate quick charge to the impact that electrical network brings, slow down electrical network pressure, the electricity grid substation that need not charging station is connected carries out large-scale dilatation;
2. can be embodied as different manufacturers, dissimilar various electric automobiles provide the charging service;
3. the charging service is convenient, and the operation simple and flexible is easy to maintenance;
4. can buy power at the low low power consumption of electricity price is stored in the energy storage device, and in the high peak of power consumption of electricity price the energy of energy storage device is sold to electric motor car client or electrical network, thereby obtains bigger income, and helps peak clipping Pinggu of electrical network.
Description of drawings
Fig. 1 (a) is that the utility model has the electric automobile charging station of energy storage device and the composition diagram of operation and collocation method thereof, wherein comprises AC network electric power system 1, watch-dog 2, energy storage device 3, charging device 4 four parts.Fig. 1 (b) is the concrete composition diagram of energy storage device group 1 and charging device group 1.
Fig. 2 is the schematic diagram that adopts the normal accumulation of energy charge operation of electric automobile charging station that has energy storage device, wherein only contains one group of energy storage device, one group of charging device.
Fig. 3 is that employing has the schematic diagram of the electric automobile charging station of energy storage device with surplus electric energy feedback grid (sell the surplus electric energy and give grid company) during the electrical network peak of power consumption, wherein only contains one group of energy storage device, one group of charging device.
Fig. 4 adopts the electric automobile charging station that has energy storage device to give the schematic diagram of the normal quick charge operation of motor vehicle by charging device, wherein only contains one group of energy storage device, one group of charging device.
Embodiment
The charging station configuration:
Fig. 1 (a) is the basic structure composition diagram of system described in the utility model, and wherein the selection of energy storage device is particularly important for this.The energy storage device of charging station can adopt super capacitor and lithium titanate battery combination or adopt the lithium titanate battery to constitute energy storage device separately, this mainly be since the lithium titanate cell charging times can reach 20000 times, operating temperature range is wide, charge rate is fast, energy density is higher, though and the super capacitor energy density is not very high, but has very high power density, can adopt high current charge-discharge, the speed that discharges and recharges is fast and pattern is simple, is quick charge truly, long service life.
Described AC network electric power system is made of high pressure relaying protection cabinet, three-phase transformer and low pressure relaying protection cabinet; Between the high-pressure side that is connected in high-voltage alternating electrical network and three-phase transformer of high pressure relaying protection cabinet, the low-pressure side of three-phase transformer connects low pressure relaying protection cabinet, realizes isolating and protective effect.
Described watch-dog is the core of whole system, mainly finish the control between control (energy accumulating state or regenerating condition), energy storage device and the charging device (user) of flow of power between system monitoring (comprising electric network information monitoring, energy accumulating state monitoring, charged state monitoring), energy storage device and the AC network, instruct the running status of whole charging station system.When charging electric vehicle, when promptly energy requirement being arranged, the energy storage device energy balance of watch-dog supervisory control system and electric network information etc.
Shown in Fig. 1 (b), described energy storage device contains some energy storage device groups, and each energy storage device group is made of some on-off controllers and energy storage device.Its quantity is decided on the scale of institute's construction charging station.Wherein energy storage device is energy storage devices such as lithium titanate battery, super capacitor.The selection energy storage device need be considered the price that recycles life-span, operating temperature range, charge efficiency, energy density, charging station scale and equipment of equipment etc., accomplishes to distribute rationally.Simultaneously, described energy storage device can adopt single energy storage mode, also can adopt the combined accumulation energy mode.
Described charging device contains some charging pile groups, and each fill device group is made of some on-off controllers and charging pile, and its quantity is decided on the scale of institute's construction charging station.
Generally, the capacity of energy storage device will be much larger than the required energy of single electric automobile, for the better utilization energy, optimize charge efficiency, when configuration has the electric automobile charging station of energy storage device, can be one or a several energy storage device band number charging device, such as five charging electric vehicle equipment of an energy storage device control.
Operation manner:
Effectively investigating on the basis of this area charging electric vehicle demand, purchase charging device, energy storage device, build charging station.The operation manner of employing and traditional gas station or gas station, how many charging stations charges by the charge volume of charging automobile (user).
Fig. 2 is the schematic diagram when adopting the normal accumulation of energy charging of the charging station work that has energy storage device.Charging station is energy storage device charging accumulation of energy in the low power consumption period generally.Low power consumption is general many at night, this moment, electricity price was preferential, the quantity of automobile of charging simultaneously is also less, at this moment between in the section charging station obtain the energy storage device charging accumulation of energy that electric power is given charging station to charge normal speed from electrical network, the energy storage time that generally charges is about 6-8 hour.Watch-dog is mainly monitored information such as electric network information and energy storage device stored energy state.
Belong to peak of power consumption daytime, electricity price is higher, and this moment, charging station mainly was to sell the electric automobile user with the electric energy that has stored to charge to electric motor car, and it moves schematic diagram as shown in Figure 4 normally.At this moment, watch-dog is mainly monitored information such as electric network information, energy storage device stored energy residual state, charger operating state.Purchase electricity night, the sale of electricity on daytime, the price difference between this makes charging station can obtain more economic well-being of workers and staff.
If the energy storage of certain section interior charging station of time has more surplus, by day the peak of power consumption period, under the situation that guarantees the charging station operate as normal, charging station can will be sold grid company with the electric energy of surplus by the electrical network demand, realizes the energy feedback in addition.At this moment, energy Flow flows to AC network by energy storage device, and its operation schematic diagram as shown in Figure 3.Charging station still can obtain extra income from the price difference that energy storage device discharges and recharges.At this moment, watch-dog is mainly monitored information such as electric network information and energy storage device energy stored surplus.
When charging station work energy stored can not satisfy electric automobile electricity consumption demand, charging station can directly utilize AC network to give electric automobile with normal speed charging (non-immediate mode charging), to keep charging station normal operation to a certain extent.
Safeguard expansion:
If the electric automobile of this area increases, charging station just needs dilatation, sets up more energy storage device and charging device and get final product, invest lessly, extends simply.
If certain one or more energy storage device need safeguard or change the time, can be isolated this equipment by the switch that draws back these equipment input and output both sides, and can not have influence on the operate as normal of other equipment, very simple and convenient.
Claims (5)
1. an electric automobile charging station that has energy storage device is characterized in that this charging station is made of AC network (1), watch-dog (2), energy storage device (3) and charging device (4); Wherein, AC network (1) inserts the input of energy storage device (3) successively by high pressure relaying protection cabinet, three-phase transformer and low pressure relaying protection cabinet; the output of energy storage device (3) is connected by the input of switch with charging device (4), the running status of watch-dog (2) monitoring and control AC network (1), energy storage device (3) and charging device (4).
2. the electric automobile charging station that has energy storage device according to claim 1, it is characterized in that described energy storage device (3) has n energy storage device group in parallel to constitute, each energy storage device group is constituted by the energy-storage travelling wave tube of single series or dissimilar energy-storage travelling wave tubes, and wherein n is the natural number greater than 1.
3. the electric automobile charging station that has energy storage device according to claim 2, the energy-storage travelling wave tube that it is characterized in that described single series are lithium titanate battery energy storage device.
4. the electric automobile charging station that has energy storage device according to claim 2 is characterized in that described dissimilar energy-storage travelling wave tube is super capacitor and lithium titanate battery combination.
5. the electric automobile charging station that has energy storage device according to claim 1 is characterized in that described charging device (4) has n charging device group in parallel to constitute, and the charging device group is made of on-off controller serial connection charging pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205930038U CN201839050U (en) | 2010-11-05 | 2010-11-05 | Electric vehicle charging station with energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205930038U CN201839050U (en) | 2010-11-05 | 2010-11-05 | Electric vehicle charging station with energy storage device |
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| Publication Number | Publication Date |
|---|---|
| CN201839050U true CN201839050U (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205930038U Expired - Fee Related CN201839050U (en) | 2010-11-05 | 2010-11-05 | Electric vehicle charging station with energy storage device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951008A (en) * | 2010-11-05 | 2011-01-19 | 东南大学 | Electric vehicle charge station with energy storage device |
| CN102222928A (en) * | 2011-06-16 | 2011-10-19 | 北京许继电气有限公司 | Large-scale centralized energy storage intelligent charge and discharge system for power battery of electric vehicle |
| CN102545302A (en) * | 2011-05-30 | 2012-07-04 | 上海华篷防爆科技有限公司 | Skid-mounted type oiling-charging station |
| CN102545301A (en) * | 2011-05-30 | 2012-07-04 | 上海华篷防爆科技有限公司 | Skid-mounted electric vehicle charging station |
| CN102545300A (en) * | 2011-05-30 | 2012-07-04 | 上海华篷防爆科技有限公司 | Sledging-installing type multifunctional energy charging station |
| CN103280856A (en) * | 2013-05-28 | 2013-09-04 | 清华大学 | Electric vehicle ordered charging coordination control method suitable for multiple charging stations |
-
2010
- 2010-11-05 CN CN2010205930038U patent/CN201839050U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951008A (en) * | 2010-11-05 | 2011-01-19 | 东南大学 | Electric vehicle charge station with energy storage device |
| CN102545302A (en) * | 2011-05-30 | 2012-07-04 | 上海华篷防爆科技有限公司 | Skid-mounted type oiling-charging station |
| CN102545301A (en) * | 2011-05-30 | 2012-07-04 | 上海华篷防爆科技有限公司 | Skid-mounted electric vehicle charging station |
| CN102545300A (en) * | 2011-05-30 | 2012-07-04 | 上海华篷防爆科技有限公司 | Sledging-installing type multifunctional energy charging station |
| CN102222928A (en) * | 2011-06-16 | 2011-10-19 | 北京许继电气有限公司 | Large-scale centralized energy storage intelligent charge and discharge system for power battery of electric vehicle |
| CN103280856A (en) * | 2013-05-28 | 2013-09-04 | 清华大学 | Electric vehicle ordered charging coordination control method suitable for multiple charging stations |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20121105 |