CN220298335U - Energy storage charging pile system - Google Patents
Energy storage charging pile system Download PDFInfo
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- CN220298335U CN220298335U CN202322073935.XU CN202322073935U CN220298335U CN 220298335 U CN220298335 U CN 220298335U CN 202322073935 U CN202322073935 U CN 202322073935U CN 220298335 U CN220298335 U CN 220298335U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 200
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims description 28
- 230000005611 electricity Effects 0.000 claims description 24
- 238000007599 discharging Methods 0.000 claims description 18
- 230000001276 controlling effect Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
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- 229910052744 lithium Inorganic materials 0.000 description 1
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Classifications
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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
Abstract
The utility model discloses an energy storage charging pile system, which comprises: the system comprises a charging pile, an energy management module, an energy storage bidirectional converter and a mains supply interface; the energy storage module is connected with the energy storage bidirectional converter and then connected with a power grid through a mains interface; the energy storage bidirectional converter is used for converting alternating current of the power grid into direct current and storing the direct current in the energy storage module or converting the direct current in the energy storage module into alternating current and supplying the alternating current to the charging pile; the energy management module is connected with the energy storage bidirectional converter and is used for sending a control signal to the energy storage bidirectional converter so as to convert alternating current of the power grid into direct current or convert direct current of the energy storage module into alternating current. The energy storage charging pile can realize peak clipping and valley filling of the charging pile, improve the electric energy quality, improve the reliability and reduce the cost.
Description
Technical Field
The utility model relates to the technical field of new energy charging, in particular to an energy storage charging pile system.
Background
With the development of new energy automobiles, as clean energy automobiles, the main energy of electric automobiles is a power battery, and in order to meet the high-power application requirements of the electric automobiles, the key of popularization and application of the electric automobiles is in charging convenience.
The charging pile is convenient and applicable; meanwhile, different special requirements of different vehicle owners need to be met, for example: the high-end user requires uninterrupted communication, peak clipping, valley filling and the like for saving electric charge, and the existing charging pile does not have a perfect scheme so as to reduce the charging cost and relieve the voltage of a power grid.
Disclosure of Invention
The utility model provides an energy storage charging pile system, which is used for realizing peak clipping and valley filling of a charging pile, saving electric energy and running cost, relieving voltage force for a power grid and ensuring uninterrupted charging.
According to an aspect of the present utility model, there is provided an energy storage charging pile system comprising: the system comprises a charging pile, an energy management module, an energy storage bidirectional converter and a mains supply interface;
the mains supply interface is used for connecting a power grid to provide electric energy for the charging pile or to provide electric energy for the energy storage module and the charging pile;
the energy storage module is connected with the energy storage bidirectional converter and then connected with the power grid through the mains supply interface; the energy storage bidirectional converter is used for converting alternating current of the power grid into direct current and storing the direct current in the energy storage module or converting the direct current in the energy storage module into alternating current and supplying the alternating current to the charging pile;
the energy management module is connected with the energy storage bidirectional converter, and is used for sending a control signal to the energy storage bidirectional converter so as to convert alternating current of the power grid into direct current or convert direct current of the energy storage module into alternating current.
Optionally, the energy storage charging pile system further comprises a power grid detection module, wherein the power grid detection module is respectively connected with the power grid and the energy management module; the power grid detection module is used for detecting voltage and current of the power grid and transmitting the detected current to the energy management module, and the energy management module is used for managing the energy storage bidirectional converter according to the current.
Optionally, the energy management module is configured to control the energy storage bidirectional converter to convert direct current of the energy storage module into alternating current to supply to the charging pile when a current value of the current exceeds a current threshold preset by the energy management module.
Optionally, the energy storage charging pile system further comprises a battery management module, wherein the battery management module comprises a charging switch and a discharging switch, and the battery management module realizes charging or outward power supply of the energy storage module through connection or disconnection of the charging switch and the discharging switch.
Optionally, the energy storage bidirectional converter comprises an AC/DC converter and a DC/AC converter;
the energy management module is connected with the AC/DC converter and used for controlling the AC/DC converter to be conducted in a first electricity period so as to convert alternating current of the power grid into direct current to charge the energy storage module;
the DC/AC converter is connected between the discharging switch and the charging pile, and the energy management module is connected with the DC/AC converter and used for controlling the DC/AC converter to be conducted in a second electricity utilization period so as to convert direct current of the energy storage module into alternating current to supply power to the charging pile.
Optionally, the energy storage charging pile system further comprises a temperature detection module and a temperature adjustment module, wherein the temperature detection module is arranged in an energy storage container, and the energy storage module is arranged in the energy storage container;
the temperature detection module is connected with the energy management module;
the energy management module is connected with the temperature regulation module, and the energy management module is used for controlling the temperature regulation module to refrigerate or heat according to the temperature in the energy storage container acquired by the temperature detection module.
Optionally, the temperature regulating module is connected with the power grid and an alternating current output end of the energy storage bidirectional converter;
the power grid provides alternating current to the temperature regulation module;
and/or the energy storage module converts direct current of the energy storage module into alternating current through the energy storage bidirectional converter and supplies the alternating current to the temperature regulation module.
Optionally, the energy storage fills electric pile system, still includes the pilot lamp group, the pilot lamp group includes electric wire netting circular telegram pilot lamp, charge pilot lamp and discharge pilot lamp at least, the pilot lamp group with energy management module is connected.
Optionally, the energy storage charging pile system further comprises a load, the power grid and/or the energy storage module are/is used for providing electric energy for the load, and the load is a resident user.
Optionally, the energy storage charging pile system further comprises a scram switch and a power distribution switch, wherein the scram switch is respectively connected with the energy management module and the power distribution switch, and the scram switch is arranged between the power grid and the first access point; and the public end, connected with the charging pile, of the energy storage bidirectional converter is used as the first access point.
In the energy storage charging pile provided by the embodiment of the utility model, the energy management module is used for controlling the energy storage bidirectional converter to convert direct current of the energy storage module into alternating current in the electricity utilization peak period so as to supply power to the charging pile, and the energy management module is used for controlling the energy storage bidirectional converter to convert alternating current of a power grid into direct current to charge the energy storage module in the electricity utilization valley period so as to store electric energy, so that peak clipping and valley filling of the charging pile are realized, the electric energy quality is improved, the reliability is improved and the cost is reduced.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the utility model or to delineate the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an energy storage charging pile system according to an embodiment of the present utility model;
FIG. 2 is an electrical energy flow diagram of an energy storage charging pile system according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of an electric energy flow direction of an energy storage charging pile system in a first electric period according to an embodiment of the present utility model;
fig. 4 is a schematic diagram of an electric energy flow direction of an energy storage charging pile system in a second electricity utilization period according to an embodiment of the present utility model.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic structural diagram of an energy storage charging pile system according to an embodiment of the present utility model, fig. 2 is an electrical energy flow diagram of the energy storage charging pile system according to an embodiment of the present utility model, and solid arrows in fig. 2 represent electrical energy transmission, and dashed arrows represent signal transmission. Referring to fig. 1 and 2, an energy storage charging pile system includes: the energy storage system comprises a charging pile 1, an energy management module 2, an energy storage module 3, an energy storage bidirectional converter 4, a battery management module 5 and a mains supply interface;
the mains interface is used for connecting the power grid 01 to provide electric energy for the charging pile 1 or to provide electric energy for the energy storage module 3 and the charging pile 1;
the energy storage module 3 is connected with the energy storage bidirectional converter 4 and then connected with the power grid 01 through a mains interface; the energy storage bidirectional converter 4 is used for converting alternating current of the power grid 01 into direct current and storing the direct current in the energy storage module 3 or the energy storage bidirectional converter 4 is used for converting the direct current in the energy storage module 3 into alternating current and supplying the alternating current to the charging pile 1;
the energy management module 2 is connected to the energy storage bidirectional converter 4, and the energy management module 4 is configured to send a control signal to the energy storage bidirectional converter 4 to control the energy storage bidirectional converter 4 to convert the ac power of the power grid 01 into dc power or convert the dc power of the energy storage module 3 into ac power.
The energy storage bidirectional converter 4 is also connected with the charging pile 1 and the mains interface respectively, and the charging pile 1 is connected with the mains interface.
The energy management module 2 is an energy management system (Engine Management System, EMS) and the energy storage module 3 is an energy storage battery, such as a lithium battery. The control signals include a charging signal and a discharging signal, and the energy management module 2 is used for sending the charging signal to the energy storage bidirectional converter 4 in the low-valley period of electricity consumption so that the energy storage bidirectional converter 4 converts alternating current of the power grid 01 into direct current to charge the energy storage module 3, and is also used for sending the discharging signal to the energy storage bidirectional converter 4 in the peak period of electricity consumption so that the energy storage bidirectional converter 4 converts direct current of the energy storage module 3 into alternating current to supply power to the charging pile.
In the energy storage charging pile of the embodiment, the energy management module is used for controlling the energy storage bidirectional converter to convert direct current of the energy storage module into alternating current in a power consumption peak period so as to supply power to the charging pile, and the energy management module is used for controlling the energy storage bidirectional converter to convert alternating current of a power grid into direct current to charge the energy storage module in a power consumption valley period so as to store electric energy, so that peak clipping and valley filling of the charging pile are realized, the electric energy quality is improved, the reliability is improved and the cost is reduced.
With continued reference to fig. 1 and 2, the optional energy storage charging pile system further includes a grid detection module 7, where the grid detection module 7 is connected to the grid 01 and the energy management module 2, respectively; the grid detection module 7 is configured to detect a voltage and a current of the grid 01 and transmit the detected current to the energy management module 2, and the energy management module 2 is configured to manage the energy storage bidirectional converter 4 according to the current.
The power grid detection module 7 may be an electric meter with an information transmission function, and the power grid detection module 7 is configured to detect voltage and current of the power grid 01 and transmit the detected voltage and current to the energy management module 2. The energy management module 2 generates a control signal according to the magnitude of the current value to control the energy storage bidirectional converter 4 to convert the alternating current into the direct current or convert the direct current into the alternating current. Specifically, the energy management module 2 is configured to control the energy storage bidirectional converter 4 to convert the direct current of the energy storage module into alternating current for charging when the current value of the current exceeds a current threshold preset by the energy management module 2, and 1.
The energy management module 2 is used for determining that the current period is the electricity consumption peak period when the current value of the power grid 01 acquired by the power grid detection module 7 is larger than a preset current threshold value, generating a discharge signal, and controlling the energy storage bidirectional converter 4 to convert the direct current of the energy storage module into alternating current to supply to the charging pile 1 so as to relieve the voltage consumption. The energy management module 2 is further configured to determine that the current period is a power consumption valley period when the current value of the power grid 01 obtained by the power grid detection module 7 is less than or equal to a preset current threshold, generate a charging signal, and control the energy storage bidirectional converter 4 to convert the alternating current of the power grid 01 into direct current to supply to the energy storage module 3 for storing electric energy.
With continued reference to fig. 1 and 2, optionally, the battery management module 5 includes a charge switch and a discharge switch, and the battery management module 5 implements charging or externally supplying power to the energy storage module 3 by turning on or off the charge switch and the discharge switch. The battery management module 5 is a battery management system (Battery Management System, BMS) for monitoring the state of each single battery in the energy storage module 3, preventing the battery from being overcharged and overdischarged, and prolonging the service life of the energy storage module 3. Optionally, the charging switch and the discharging switch are MOS transistors. The charging switch is connected between the energy storage module 3 and the energy storage bidirectional converter 4, the discharging switch is connected between the energy storage module 3 and the energy storage bidirectional converter 4, the charging switch is used for being conducted when the power grid 01 charges the energy storage module 3, and the discharging switch is used for being conducted when the energy storage module 3 discharges outwards, such as supplying power to the charging pile 1. With continued reference to fig. 1, the energy storage charging pile system optionally further comprises a load 02, the grid 01 and/or the energy storage module 3 being adapted to provide electrical energy to the load 02, the load 02 being a residential user. Besides the charging pile 1, the power grid 01 and the energy storage bidirectional converter 4 can be electrically connected with a plurality of loads 02, so that the power grid 01 supplies power to the loads 02 or the energy storage module 3 supplies power to the loads 02. By way of example, if the energy management module 2 determines through the battery management module 5 that the electric quantity in the energy storage module 3 can supply power to the load with the total power of 8.2KW, the energy management module 5 controls the plurality of loads 02 (the sum of the powers of the plurality of loads is 8.2 KW) to be turned on, so as to form a path for supplying power to the plurality of loads 02 by the energy storage module 3. The energy management module 5 is further configured to control a portion of the electric energy to be transferred to the charging pile 1 and another portion of the electric energy to be transferred to the energy storage module 3 during a first electric period, such as a low electric period. In the second electricity consumption period, namely the electricity consumption peak period, the energy storage module 3 participates in the power supply of the charging pile 1 and the load, so that peak clipping is realized, the capacity of the commercial power configured according to typical maximum power is reduced, and further, the effect of 'not changing the commercial power' is realized, and the transformation cost is reduced. In a first electricity utilization period, namely an electricity utilization valley period, the power grid 01 is controlled to charge the energy storage module 3, so that the valley filling of the mains supply is realized, a part of electric energy of the power grid 01 is used for supplying power to the charging pile 1 and the load 02, and a part of electric energy is used for charging the energy storage module 3.
Fig. 3 is a schematic electrical energy flow diagram of an energy storage charging pile system in a first power consumption period according to an embodiment of the present utility model, and fig. 4 is a schematic electrical energy flow diagram of an energy storage charging pile system in a second power consumption period according to an embodiment of the present utility model, referring to fig. 1, fig. 3 and fig. 4, optionally, the energy storage bidirectional converter 4 includes an AC/DC converter 41 and a DC/AC converter 42. The AC/DC converter 41 is connected between the charging switch and the power grid 01, and the energy management module 2 is connected with the AC/DC converter 41 and is used for controlling the AC/DC converter 41 and the charging switch to be conducted in a first electricity period so as to convert the alternating current of the power grid 01 into direct current to charge the energy storage module 3; the DC/AC converter 42 is connected between the discharge switch and the charging pile 1, and the energy management module 2 is connected with the DC/AC converter 42, and is used for controlling the DC/AC converter 42 and the discharge switch to be turned on during the second electricity utilization period, so as to convert the direct current of the energy storage module 3 into alternating current to supply power to the charging pile. The first power consumption period is a power consumption valley period, and the second power consumption period is a power consumption peak period. The AC/DC converter 41 may be any commercially available device capable of converting alternating current into direct current, and the DC/AC converter 42 may be any commercially available device capable of converting direct current into alternating current. The electric energy output by the power grid 01 is alternating current, and in the first electricity period, the alternating current output by the power grid 01 is directly transmitted to the charging pile 1 and the load 02, and is converted into direct current by the AC/DC converter 41 and then output to the energy storage module 3. In the second electricity consumption period, the alternating current output by the power grid 01 is directly transmitted to the charging pile 1 and the load 02, and meanwhile, the direct current output by the energy storage module 3 is converted into alternating current by the DC/AC converter 42 and then is output to the charging pile 1 and the load 02. During the day, electricity peak periods such as 6:00-10:00,17:00-22:00, electricity valley periods such as 22:00-6:00 are included. The time periods can be prestored in the energy management module 2 in advance, the energy management module determines whether the current moment is in the electricity consumption peak time period or the electricity consumption valley time period according to the preset time period, and the working states of the charging switch, the discharging switch and the energy storage bidirectional converter are controlled according to the time periods.
The working process of the energy storage charging pile system is as follows:
in the second electricity utilization period, the energy management module 2 controls the AC/DC converter 41 to be disconnected and the DC/AC converter 42 to be conducted, and meanwhile controls the charging switch to be disconnected and the discharging switch to be closed through the battery management module 5, so that the direct current output by the energy storage module 3 is converted into alternating current and then output to the charging pile 1, the charging pile 1 is powered, and the voltage consumption of the power grid 01 in the peak period is relieved. In the first electricity period, the energy management module 2 controls the AC/DC converter 41 to be conducted and the DC/AC converter 42 to be disconnected, and simultaneously controls the charging switch to be closed and the discharging switch to be opened through the battery management module 5, so that alternating current output by the power grid 01 is converted into direct current and then is output to the energy storage module 3, and the energy storage module 3 is charged, thereby realizing peak clipping and valley filling of electric energy.
With continued reference to fig. 1, optionally, the energy management module 2, the energy storage bidirectional converter 4, the energy storage module 3, the charge switch, the discharge switch, and the battery management module 5 are disposed in the energy storage container, so as to reduce corrosion of rainwater to devices, and form a protection effect on the devices.
With continued reference to fig. 1, optionally, the energy storage charging pile system further includes a temperature detection module and a temperature adjustment module, the temperature detection module being disposed within the energy storage container;
the temperature detection module is connected with the energy management module 2;
the energy management module 2 is connected with the temperature regulation module, and the energy management module 2 is used for controlling the temperature regulation module to refrigerate or heat according to the temperature in the energy storage container acquired by the temperature detection module.
The temperature detection module may be a temperature sensor, the temperature adjustment module includes a fan 61 and/or an air conditioner 62, the setting of the air conditioner 62 and the fan 61 is determined according to the size of the energy storage module 3, when the number of batteries in the energy storage module 3 is large, and when the heat generated in the charge and discharge process is large, the air conditioner 62 and the fan 61 are set together in the energy storage container.
The energy management module 2, the energy storage module 3 and the battery management module 5 have certain requirements on temperature during operation, and the devices can be damaged due to overhigh or overlow temperature, so that the temperature detection module is required to detect the temperatures of the energy management module 2, the battery management module 5 and the energy storage module 3. The temperature detection module is arranged in the energy storage container, and the temperature of the energy storage container is approximately equal to the temperatures of the energy management module 2, the energy storage module 3 and the battery management module 5. The energy management module 2 is configured to control the temperature adjustment module to perform cooling, such as controlling the fan 61 to be turned on and controlling the air conditioner 62 to enter a cooling mode, when the temperature in the energy storage container is greater than a first threshold temperature, where the first threshold temperature is typically between 40 ℃ and 60 ℃. The energy management module 2 is further configured to control the temperature adjustment module to heat, such as controlling the air conditioner 62 to enter a heating mode, when the temperature in the energy storage container is less than a second threshold temperature. Wherein the first threshold temperature is greater than the second threshold temperature; the second threshold temperature is typically less than 10 ℃.
With continued reference to fig. 1, optionally, the temperature regulation module is connected to the ac output terminals of the power grid 01 and the energy storage bidirectional converter 4;
the power grid 01 supplies alternating current to the temperature regulation module;
and/or the energy storage module 3 converts direct current of the energy storage module 3 into alternating current through the energy storage bidirectional converter 4 and supplies the alternating current to the temperature regulation module.
The ac end of the energy storage bidirectional converter 4 is used for outputting ac. The energy storage bidirectional converter 4 comprises an AC/DC converter 41 and a DC/AC converter 42, wherein a first end of the DC/AC converter 42 is connected with the energy storage module 3, and a second end of the DC/AC converter 42 is connected with the temperature regulating module as an alternating-current end of the energy storage bidirectional converter 4. The temperature regulation module is powered by the grid 01 or the energy storage module 3.
With continued reference to fig. 1, optionally, the energy storage charging pile system further includes an indicator light set 8, where the indicator light set 8 includes at least a power grid energizing indicator light, a charging indicator light, and a discharging indicator light, and the indicator light set 8 is connected with the energy management module 2.
The energy management module 2 is used for controlling the power grid to be electrified and indicating lamp to be on when the power grid output electric energy is obtained through the power grid detection module 7, controlling the charging and indicating lamp to be on when the charging switch is closed and the power grid charges the energy storage module 3, and controlling the discharging and indicating lamp to be on when the discharging switch is closed and the energy storage module 3 discharges the electric pile 1. By arranging the indicating lamp group 8, the state of the energy storage charging pile system can be clearly known to a user.
With continued reference to fig. 1, the energy storage charging stake system optionally further includes a display module 9, the display module 9 being connected with the energy management module 2.
The display module 9 may be a liquid crystal display, an OLED display or other devices for displaying, and the display module 9 may be a touch screen, which is not limited herein. The display module 9 is used for displaying some basic information of the energy storage charging pile system, such as charging and discharging states, charging switches, conducting states of the discharging switches, temperatures and the like, so that information interaction between a user and the system is facilitated.
With continued reference to fig. 1, optionally, the energy storage charging pile system further includes a scram switch 10 and a power distribution switch Q3, the scram switch 10 is respectively connected with the energy management module 2 and the power distribution switch Q3, and the power distribution switch Q3 is disposed between the power grid and the first access point A1; the common end of the energy storage bidirectional converter 4 connected with the charging pile 1 serves as a first access point A1.
The energy management module 2 is used for controlling the disconnection of the distribution switch Q3 through the emergency stop switch 10 when the power grid is in an abnormal state so as to cut off the connection between the power grid 01 and the charging pile 1 and the energy storage module 3, and avoid the damage to the whole system caused by the abnormality of the power grid 01 when the output current is overlarge.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present utility model may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present utility model are achieved, and the present utility model is not limited herein.
The above embodiments do not limit the scope of the present utility model. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. An energy storage charging pile system, comprising: the system comprises a charging pile, an energy management module, an energy storage bidirectional converter and a mains supply interface;
the mains supply interface is used for connecting a power grid to provide electric energy for the charging pile or to provide electric energy for the energy storage module and the charging pile;
the energy storage module is connected with the energy storage bidirectional converter and then connected with the power grid through the mains supply interface; the energy storage bidirectional converter is used for converting alternating current of the power grid into direct current and storing the direct current in the energy storage module or converting the direct current in the energy storage module into alternating current and supplying the alternating current to the charging pile;
the energy management module is connected with the energy storage bidirectional converter, and is used for sending a control signal to the energy storage bidirectional converter so as to convert alternating current of the power grid into direct current or convert direct current of the energy storage module into alternating current.
2. The energy storage charging stake system of claim 1, further comprising a grid detection module connected to the grid and the energy management module, respectively; the power grid detection module is used for detecting voltage and current of the power grid and transmitting the detected current to the energy management module, and the energy management module is used for managing the energy storage bidirectional converter according to the current.
3. The energy storage charging pile system according to claim 2, wherein the energy management module is configured to control the energy storage bidirectional converter to convert direct current of the energy storage module into alternating current for the charging pile when a current value of the current exceeds a current threshold preset by the energy management module.
4. The energy storage charging stake system of claim 1, further comprising a battery management module including a charge switch and a discharge switch, the battery management module effecting charging or externally powering of the energy storage module by turning on or off the charge switch and the discharge switch.
5. The energy storage charging pile system of claim 4, wherein the energy storage bi-directional converter comprises an AC/DC converter and a DC/AC converter;
the energy management module is connected with the AC/DC converter and used for controlling the AC/DC converter to be conducted in a first electricity period so as to convert alternating current of the power grid into direct current to charge the energy storage module;
the DC/AC converter is connected between the discharging switch and the charging pile, and the energy management module is connected with the DC/AC converter and used for controlling the DC/AC converter to be conducted in a second electricity utilization period so as to convert direct current of the energy storage module into alternating current to supply power to the charging pile.
6. The energy storage charging stake system of claim 1, further comprising a temperature detection module and a temperature adjustment module, the temperature detection module disposed within an energy storage container, the energy storage module disposed within the energy storage container;
the temperature detection module is connected with the energy management module;
the energy management module is connected with the temperature regulation module, and the energy management module is used for controlling the temperature regulation module to refrigerate or heat according to the temperature in the energy storage container acquired by the temperature detection module.
7. The energy storage charging pile system according to claim 6, wherein the temperature regulation module is connected to the grid and an ac output of the energy storage bi-directional converter;
the power grid provides alternating current to the temperature regulation module;
and/or the energy storage module converts direct current of the energy storage module into alternating current through the energy storage bidirectional converter and supplies the alternating current to the temperature regulation module.
8. The energy storage charging stake system of claim 1, further comprising an indicator light set including at least a grid energizing indicator light, a charging indicator light and a discharging indicator light, the indicator light set being connected with the energy management module.
9. The energy storage charging pile system according to claim 1, further comprising a load, the grid and/or the energy storage module being adapted to provide electrical energy to the load, the load being a residential consumer.
10. The energy storage charging pile system of claim 1, further comprising a scram switch and a power distribution switch, the scram switch being connected to the energy management module and the power distribution switch, respectively, the scram switch being disposed between the power grid and a first access point; and the public end, connected with the charging pile, of the energy storage bidirectional converter is used as the first access point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322073935.XU CN220298335U (en) | 2023-08-03 | 2023-08-03 | Energy storage charging pile system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322073935.XU CN220298335U (en) | 2023-08-03 | 2023-08-03 | Energy storage charging pile system |
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| CN220298335U true CN220298335U (en) | 2024-01-05 |
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