CN215322084U - Energy storage type direct current charging pile - Google Patents
Energy storage type direct current charging pile Download PDFInfo
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- CN215322084U CN215322084U CN202120921016.1U CN202120921016U CN215322084U CN 215322084 U CN215322084 U CN 215322084U CN 202120921016 U CN202120921016 U CN 202120921016U CN 215322084 U CN215322084 U CN 215322084U
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- 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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Abstract
The utility model relates to an energy storage type direct current charging pile, which is characterized in that: comprises the following steps: the input end of the AC-DC module is connected with an alternating current power grid; the energy storage battery is connected with the output end of the AC-DC module; the input end of the first DC-DC module is connected between the energy storage battery and the output end of the AC-DC module, and the output end of the first DC-DC module is connected with a load and used for supplying power to the load; and the control module is in communication connection with the energy storage battery and the load, is connected with the control end of the AC-DC module and the control end of the first DC-DC module, and is used for controlling whether the AC-DC module and the first DC-DC module work or not according to the conditions of monitoring the energy storage battery and the load. Has the advantages that: this direct current fills electric pile has realized intelligent charging through control module, is different from current single mode of charging, also realizes the short time power supply after alternating current network outage, make full use of the electric energy, has improved energy utilization.
Description
Technical Field
The utility model relates to the field of charging piles, in particular to an energy storage type direct current charging pile.
Background
The charging pile of the electric automobile is used as an energy supply device of the electric automobile, and the charging performance of the charging pile is related to the service life and the charging time of the battery pack. This is also one of the most important concerns for consumers before purchasing electric cars. The realization of quick, efficient, safe and reasonable electric quantity supply to the power battery is a basic principle of electric automobile charger design, and in addition, the applicability of the charger to various power batteries is also considered. At present, charging piles are divided into direct current charging piles, alternating current charging piles and alternating current and direct current integrated charging piles according to charging modes, wherein the direct current charging piles are generally high in power and have high requirements for power grid loads, a single pile reaches 60 KW-480 KW, and especially after large-scale application, the direct current charging piles have large influences on a power grid.
In order to solve the problem, the utility model discloses a chinese utility model patent with application number CN201821826692.5 (No. CN209224963U) discloses an energy storage type DC charging pile for electric vehicles, including ac charging machine, energy storage battery, DC/DC conversion circuit, main control circuit, charging gun and charging control circuit, ac charging machine, energy storage battery and DC/DC conversion circuit are connected with the main control circuit electricity respectively, the main control circuit is connected with the interface electricity that charges of outside electric vehicle through the charging control circuit, ac charging machine and energy storage battery are connected with DC/DC conversion circuit electricity respectively, ac charging machine is connected with the energy storage battery electricity, DC/DC conversion circuit is connected with the interface electricity that charges of outside electric vehicle through the charging gun, the charging gun is connected with the charging control circuit electricity. The direct current charging pile needs an additional alternating current charger, but the direct current charging pile firstly utilizes the electric energy of the alternating current charger, if the electric energy is not enough, the electric energy is drawn from the energy storage battery, if the electric energy of the alternating current charger is enough, the energy storage battery is charged, and the direct current charging pile actually preferentially uses the electric energy of the alternating current charger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of the prior art and provides an energy storage type direct current charging pile which can adjust the working condition of a power supply module according to the monitoring condition so as to improve the energy utilization rate.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an energy storage formula direct current fills electric pile which characterized in that: comprises the following steps:
the input end of the AC-DC module is connected with an alternating current power grid;
the energy storage battery is connected with the output end of the AC-DC module;
the input end of the first DC-DC module is connected between the energy storage battery and the output end of the AC-DC module, and the output end of the first DC-DC module is connected with a load and used for supplying power to the load;
and the control module is in communication connection with the energy storage battery and the load, is connected with the control end of the AC-DC module and the control end of the first DC-DC module, and is used for controlling whether the AC-DC module and the first DC-DC module work or not according to the conditions of monitoring the energy storage battery and the load.
In order to realize the utilization of other energy sources, the device also comprises a photovoltaic battery pack and a second DC-DC module connected with the photovoltaic battery pack, wherein the second DC-DC module is connected with the input end of the first DC-DC module.
Further, the photovoltaic battery pack is connected with the second DC-DC module through a first power line.
Further, the second DC-DC module is connected with the first DC-DC module through a second power line.
The control module is also in communication connection with the photovoltaic battery pack and is connected with the control end of the second DC-DC module.
In order to realize the power supply of the control module, the control device further comprises a third DC-DC module connected with the first DC-DC module, and the output end of the third DC-DC module is connected with the control module and used for supplying power to the control module. The third DC-DC module converts the voltage to a low voltage for use by the control module.
Further, the AC-DC module is connected with an alternating current power grid through a third power line.
Further, the first DC-DC module is connected with a load through a fourth power line.
In order to realize the monitoring of the components, the monitoring device further comprises a voltage acquisition module for acquiring the voltages of the first power line, the second power line, the third power line and the fourth power line, and the voltage acquisition module is connected with the control module.
Preferably, the energy storage battery is a power battery stack. The power battery stack is a recycled battery, so that the recycled battery can be fully utilized, and the utilization rate of energy is improved.
Compared with the prior art, the utility model has the advantages that: the control module is in communication connection with the load and the energy storage battery to monitor the load and the energy storage battery, and the control module controls whether the AC-DC module and the first DC-DC module work or not through a monitoring result, so that the direct-current charging pile realizes intelligent charging through the control module, is different from the existing single charging mode, realizes short-time power supply after the power failure of an alternating-current power grid, makes full use of electric energy and improves the energy utilization rate.
Drawings
Fig. 1 is a schematic block diagram of an energy storage type dc charging pile according to an embodiment of the present invention;
fig. 2 is a control block diagram of the energy storage type dc charging pile in fig. 1.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 and fig. 2, an energy storage type dc charging pile includes:
the input end of the AC-DC module 7 is connected with an alternating current grid 9; under normal conditions, the voltage of the alternating current power grid 9 is 380V; the AC-DC module is a module capable of converting AC into DC, and can adopt the existing module unit;
the energy storage battery 5 is connected with the output end of the AC-DC module 7;
a first DC-DC module 11, the input end of which is connected between the energy storage battery 5 and the output end of the AC-DC module 7, and the output end of which is connected to a load 13, for supplying power to the load 13; in this embodiment, the load 13 is an electric vehicle;
and the control module 15 is in communication connection with the energy storage battery 5 and the load 13, and the control module 15 is connected with the control end of the AC-DC module 7 and the control end of the first DC-DC module 11, and is used for controlling whether the AC-DC module 7 and the first DC-DC module 11 work or not according to the conditions of monitoring the energy storage battery 5 and the load 13. The control module 15 may include a plurality of control system groups, and the control end of the AC-DC module 7 and the control end of the second DC-DC module 11 are both ports capable of controlling the AC-DC module 7 and the second DC-DC module 11 to be turned on or turned off, and then the control module 15 sends a control signal for controlling the AC-DC module 7 or the second DC-DC module 11 to be turned on or turned off, so that control may be implemented.
In order to realize energy utilization, the photovoltaic solar energy generation system further comprises a photovoltaic battery pack 1 and a second DC-DC module 3 connected with the photovoltaic battery pack 1, wherein the second DC-DC module 3 is connected with the input end of the first DC-DC module 11.
In order to realize low-voltage power supply in the circuit, the circuit further comprises a third DC-DC module 10 connected with the input end of the first DC-DC module 11, and the output end of the third DC-DC module 10 is connected with a control module 15 through a fifth power line 14 and used for supplying power to the control module 15. In addition, the control module 15 is also connected in communication with the photovoltaic cell 1 and is connected to a control terminal of the second DC-DC module 3.
The photovoltaic battery pack 1 is connected with the second DC-DC module 3 through a first power line 2; the second DC-DC module 3 is connected with the first DC-DC module 11 through a second power line 4; the AC-DC module 7 is connected with an alternating current power grid 9 through a third power line 8; the first DC-DC module 11 is connected to a load 13 via a fourth power line 12. In order to realize the output monitoring of the modules, the charging pile further comprises a voltage acquisition module for acquiring electric energy on the first power line 2, the second power line 4, the third power line 8 and the fourth power line 12, and the voltage acquisition module is connected with the control module 15. The energy storage battery 5 is connected to the second power line 4 by means of a sixth power line 6, whereby said second power line 4 acts as a bus for the transmission of electric energy.
The second DC-DC module 3 described above is used to implement the voltage conversion on the first power line 2 to the voltage on the second power line 4, the AC-DC module 7 is used to implement the voltage conversion on the third power line 8 to the voltage on the second power line 4, the first DC-DC module 11 is used to implement the voltage conversion on the second power line 4 to the voltage on the fourth power line 12, and, correspondingly, the third DC-DC module 10 is used to implement the voltage conversion on the second power line 4 to the fifth power line 14.
In this embodiment, the energy storage cell 5 is a recycled power cell stack. Of course, the photovoltaic cell group 1 may also be a combination of a fan and an AC-DC adjustable module or other clean power generation energy, and the energy utilization rate is improved by storing the electric energy of sunlight through the photovoltaic cell group 1.
This stake of charging transmits the electric energy of photovoltaic cell group 1 and alternating current network 9 to second power line 4 through second DC-DC module 3 and AC-DC module 7 on, and energy storage battery 5 is as the part that can supply power for second power line 4 simultaneously, also can obtain the electric energy from second power line 4, has improved the utilization ratio of electric energy to through the voltage conversion of first DC-DC module 11 on with second power line 4 to the voltage that can supply load 13 to use.
The working process of the embodiment is as follows: through interaction between the control module 5 and the load 13, when the load 13 needs to be charged, the control module 5 controls the first DC-DC module 11 to work, otherwise, the first DC-DC module 11 does not work; wherein, the power supply of above-mentioned electric pile divide into following several parts:
(1) and the power supply process of the photovoltaic battery pack 1: the control module 15 detects whether the electric quantity supply of the first power line 2 is sufficient, if yes, the control module 15 controls the second DC-DC module 3 to work, the second DC-DC module 3 provides energy for the second power line 4, and whether the electric quantity supply of the first power line 2 is sufficient is continuously detected; if not, the second DC-DC module 3 is disconnected from working through the control module 15;
(2) and the power supply process of the energy storage battery 5: the control module 15 detects whether the electric quantity of the energy storage battery 5 is sufficient, if yes, the control module 15 controls the AC-DC module 7 to be closed; if not, the AC-DC module 7 is controlled to work through the control module 15, and the AC-DC module 7 provides energy for the second power line 4;
(3) and the power supply process of the alternating current power grid 9: when the control module 15 detects that the electric quantity of the first power line 2 and the electric quantity of the energy storage battery 5 are insufficient, the control module 15 controls the AC-DC module 7 to work, and the alternating current power grid 9 supplies energy to the second power line 4 through the AC-DC module 7;
the photovoltaic battery pack 1, the energy storage battery 5 and the alternating current power grid 9 can supply power to the load 13 at the same time or simultaneously by one or more modules, and different modules can be selected for supplying power according to actual conditions; when the ac power grid 9 is in a power-down state, the electric quantities in the photovoltaic battery pack 1 and the energy storage battery 5 can be used to charge the vehicle, for example: when the first power line 2 and the third power line 8 are in a power-down state, the storage capacity of the energy storage battery 5 is calculated, when a vehicle is charged, the vehicle is charged, at the moment, if the electric quantity of the energy storage battery 5 is calculated to be in a low-electric-quantity state, the vehicle is suspended from being charged until the system monitors that the first power line 2 or the third power line 8 is restored to a power-up state, and the vehicle is continuously charged; when the stored electric quantity of the energy storage battery 5 needs to be adjusted, the storage quantity of the energy storage battery 5 can be adjusted by dynamically adjusting the voltage from the second DC-DC module 3 and the AC-DC module 7 to the second power line 4; the energy storage battery 5 can be charged by preferentially adopting the valley power of the power grid, and the energy storage battery 5 is preferentially adopted to supply power to the vehicle when the power grid is in the peak power and the vehicle needs to be charged.
In the embodiment, the energy storage battery 5 is a power battery stack for secondary recovery, so that on one hand, charging stop caused by sudden power failure in the charging process of a vehicle can be effectively prevented, on the other hand, the secondary recovery power battery can be fully utilized, the utilization rate of the power battery is improved, and the influence of battery scrapping on the environment is reduced; in addition, in the embodiment, the cleaning capability is fully utilized, the requirement on the energy of the power grid is reduced, the large-scale application is particularly obvious, the valley electricity is fully utilized to charge the energy storage battery 5, the vehicle is charged during peak electricity, the charging cost is reduced, the output electricity price is improved, the system profit is improved, the fluctuation of the power grid can be smoothed, and the peak clipping and valley filling effects are achieved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an energy storage formula direct current fills electric pile which characterized in that: comprises the following steps:
an AC-DC module (7) with an input end connected with an alternating current grid (9);
the energy storage battery (5) is connected with the output end of the AC-DC module (7);
a first DC-DC module (11), the input end of which is connected between the energy storage battery (5) and the output end of the AC-DC module (7), and the output end of which is connected with a load (13) for supplying power to the load (13);
and the control module (15) is in communication connection with the energy storage battery (5) and the load (13), and the control module (15) is connected with the control end of the AC-DC module (7) and the control end of the first DC-DC module (11) and used for controlling whether the AC-DC module (7) and the first DC-DC module (11) work or not according to the condition of monitoring the energy storage battery (5) and the load (13).
2. The energy storage type direct current charging pile according to claim 1, characterized in that: the photovoltaic solar energy collecting system further comprises a photovoltaic battery pack (1) and a second DC-DC module (3) connected with the photovoltaic battery pack (1), wherein the second DC-DC module (3) is connected with the input end of the first DC-DC module (11).
3. The energy storage type direct current charging pile according to claim 2, characterized in that: the photovoltaic battery pack (1) is connected with the second DC-DC module (3) through a first power line (2).
4. The energy storage type direct current charging pile according to claim 3, characterized in that: the second DC-DC module (3) is connected with the first DC-DC module (11) through a second power line (4).
5. The energy storage type direct current charging pile according to any one of claims 2-4, characterized in that: the control module (15) is also in communication connection with the photovoltaic battery pack (1) and is connected with the control end of the second DC-DC module (3).
6. The energy storage type direct current charging pile according to claim 5, characterized in that: the device also comprises a third DC-DC module (10) connected with the first DC-DC module (11), wherein the output end of the third DC-DC module (10) is connected with the control module (15) and used for supplying power to the control module (15).
7. The energy storage type direct current charging pile according to claim 4, characterized in that: the AC-DC module (7) is connected with an alternating current power grid (9) through a third power line (8).
8. The energy storage type direct current charging pile according to claim 7, characterized in that: the first DC-DC module (11) is connected with a load (13) through a fourth power line (12).
9. The energy storage type direct current charging pile according to claim 8, characterized in that: the device is characterized by further comprising a voltage acquisition module for acquiring voltages on the first power line (2), the second power line (4), the third power line (8) and the fourth power line (12), wherein the voltage acquisition module is connected with the control module (15).
10. The energy storage type direct current charging pile according to claim 1, characterized in that: the energy storage battery (5) is a power battery stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120921016.1U CN215322084U (en) | 2021-04-29 | 2021-04-29 | Energy storage type direct current charging pile |
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| CN202120921016.1U CN215322084U (en) | 2021-04-29 | 2021-04-29 | Energy storage type direct current charging pile |
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| CN215322084U true CN215322084U (en) | 2021-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117335417A (en) * | 2023-11-28 | 2024-01-02 | 东莞市奥海科技股份有限公司 | Load power supply control method, power supply controller, control assembly and charging pile |
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2021
- 2021-04-29 CN CN202120921016.1U patent/CN215322084U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117335417A (en) * | 2023-11-28 | 2024-01-02 | 东莞市奥海科技股份有限公司 | Load power supply control method, power supply controller, control assembly and charging pile |
| CN117335417B (en) * | 2023-11-28 | 2024-03-19 | 东莞市奥海科技股份有限公司 | Load power supply control method, power supply controller, control assembly and charging pile |
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