CN217427717U - Independent energy storage module and energy storage system - Google Patents
Independent energy storage module and energy storage system Download PDFInfo
- Publication number
- CN217427717U CN217427717U CN202220790518.XU CN202220790518U CN217427717U CN 217427717 U CN217427717 U CN 217427717U CN 202220790518 U CN202220790518 U CN 202220790518U CN 217427717 U CN217427717 U CN 217427717U
- Authority
- CN
- China
- Prior art keywords
- energy storage
- module
- storage module
- bms
- power conversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application provides an independent energy storage module and an energy storage system. Because the independent energy storage module comprises the first battery module, the first power patch cord, the first BMS and the first communication patch cord, and the devices are arranged between the upper surface and the lower surface of the independent energy storage module, namely the structure of the energy storage module in the energy storage system in the prior art is the same, the independent energy storage module can be used as the energy storage module in the energy storage system; in addition, because a charging branch circuit is arranged between the connecting end of the first battery module in the independent energy storage module and the power input interface of the independent energy storage module, and a discharging branch circuit is arranged between the connecting end of the first battery module and the power output interface of the independent energy storage module, the independent energy storage module can be independently charged and discharged; to sum up, the independent energy storage module that this application provided can realize energy storage module's independent charge-discharge among the energy storage system.
Description
Technical Field
The utility model relates to a power electronic technology field especially relates to an independent energy storage module and energy storage system.
Background
The household energy storage system can store energy in various modes such as a power generation device and commercial power when in charging, and can supply power to household appliances which stop running due to abnormal power supply when in discharging; in addition, under the common condition, the electric quantity with different gradients is realized in a mode of overlapping a plurality of energy storage modules, so that the power consumption requirements of different families are met.
At present, single energy storage modules in household energy storage systems in the market cannot be independently charged and discharged; however, if a single energy storage module can be used independently, then the user can use the single energy storage module as a mobile power supply, and the power consumption requirement of the user outdoors can be met, so that the application scenes of the user energy storage system are richer, and the product utilization rate of the user energy storage system is improved.
Therefore, how to realize the independent charging and discharging of the energy storage module in the energy storage system is a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an independent energy storage module and energy storage system to realize energy storage module's independent charge-discharge among the energy storage system.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the present application provides in a first aspect an independent energy storage module comprising: the system comprises a first battery module, a first power patch cord, a first BMS, a first communication patch cord, a discharging branch and a charging branch; wherein:
the first battery module, the first power patch cord, the first BMS and the first communication patch cord are all arranged between the upper surface and the lower surface of the independent energy storage module;
two sampling ends of the first BMS are respectively arranged in: a first connection port on the upper surface connected to a positive electrode of the first battery module, and a second connection port on the lower surface connected to a negative electrode of the first battery module;
the two poles of the first battery module are connected with the power input interface of the independent energy storage module through the charging branch circuit, and the two poles of the first battery module are also connected with the power output interface of the independent energy storage module through the discharging branch circuit;
and the control end of the charging branch and the control end of the discharging branch are connected with the first BMS.
Optionally, the charging branch includes: a charge-discharge controller, a first relay, and at least one first power conversion unit; wherein:
the power input interface on the independent energy storage module comprises at least one sub-input interface, and the first side of each first power conversion unit is respectively connected with the sub-input interfaces in one-to-one correspondence;
the second side of each first power conversion unit is connected with the input end of the charge-discharge controller; the second side of the first power conversion unit is a direct current side;
two output terminals of the charge and discharge controller are connected with two terminals of the first battery module through the first relay;
each of the first power conversion unit, the charge and discharge controller, and the first relay is connected to the first BMS.
Optionally, the first power conversion unit includes: a DCDC converter or an ACDC converter.
Optionally, the charging branch further includes: at least one diode; wherein:
and anodes of the diodes are respectively connected with anodes of second sides of the first power conversion units in one-to-one correspondence, and cathodes of the diodes are respectively connected with anodes of input ends of the charge and discharge controllers.
Optionally, the discharge branch and the charge branch share the charge and discharge controller.
Optionally, the discharge branch further includes: a second relay and at least one second power conversion unit; wherein:
the two poles of the input end of the charge and discharge controller are connected with the two poles of the first battery module, the output end of the charge and discharge controller is respectively connected with the first side of each second power conversion unit through the second relay, and the first side of each second power conversion unit is a direct current side;
the power output interfaces on the independent energy storage modules comprise at least one sub-output interface, and the second sides of the second power conversion units are respectively connected with the sub-output interfaces in one-to-one correspondence;
each of the second power conversion unit and the second relay is connected to the first BMS.
Optionally, the second power conversion unit includes: a DCDC converter or a DCAC converter.
Optionally, the method further includes: a first voltage stabilization module; wherein:
the first voltage stabilizing module is arranged in: the positive electrode of the first battery module is connected with the first connection port of the independent energy storage module, or the negative electrode of the first battery module is connected with the second connection port of the independent energy storage module;
the first BMS is connected with the control end of the first voltage stabilizing module.
Optionally, the first voltage stabilizing module is a DCDC converter.
Another aspect of the present application provides an energy storage system, including: the energy storage device comprises a top cover, a base and at least two energy storage modules; wherein:
the energy storage modules are stacked between the top cover and the base in a layered manner;
at least one of the energy storage modules is an independent energy storage module according to any one of the previous aspects of the present application;
at least one of the energy storage modules is a dependent energy storage module.
Optionally, the non-independent energy storage module includes: a second battery module, a second power patch cord, a second BMS and a second communication patch cord; wherein:
the second battery module, the second power patch cord, the second BMS and the second communication patch cord are all arranged between the upper surface and the lower surface of the dependent energy storage module;
two sampling ends of the second BMS are respectively arranged in: and the upper surface of the first connecting port is connected with the positive electrode of the first battery module, and the lower surface of the first connecting port is connected with the negative electrode of the first battery module.
Optionally, the dependent energy storage module further includes: a second voltage stabilization module; wherein:
the second voltage stabilizing module is arranged in: the positive electrode of the second battery module is connected with the third connection port, or the negative electrode of the second battery module is connected with the fourth connection port;
the second BMS is connected with the control end of the second voltage stabilizing module.
Optionally, the second voltage stabilizing module is a DCDC converter.
Optionally, each interface between the top cover and the energy storage module, each interface between the base and the energy storage module, and each interface between the two energy storage modules all adopt an aerial plug interface.
Optionally, all of the independent energy storage modules are stacked on all of the dependent energy storage modules.
According to the above technical scheme, the utility model provides an independent energy storage module. Because the independent energy storage module comprises the first battery module, the first power patch cord, the first BMS and the first communication patch cord, and the devices are arranged between the upper surface and the lower surface of the independent energy storage module, namely the structure of the energy storage module in the energy storage system in the prior art is the same, the independent energy storage module can be used as the energy storage module in the energy storage system; in addition, because a charging branch circuit is arranged between the connecting end of the first battery module in the independent energy storage module and the power input interface of the independent energy storage module, and a discharging branch circuit is arranged between the connecting end of the first battery module and the power output interface of the independent energy storage module, the independent energy storage module can be independently charged and discharged; to sum up, the independent energy storage module that this application provided can realize energy storage module's independent charge-discharge among the energy storage system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 to fig. 5 are schematic structural diagrams of five implementations of an independent energy storage module according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an energy storage system according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a dependent energy storage module according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In this application, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In order to realize independent charging and discharging of an energy storage module in an energy storage system, an embodiment of the present application provides an independent energy storage module, and a specific structure thereof is shown in fig. 1 and specifically includes: a first Battery module 10, a first power patch cord 20, a first BMS 30(Battery Management System), a first communication patch cord 40, a discharging branch 50, and a charging branch 60; the specific connection relationship is as follows:
the first battery module 10, the first power patch cord 20, the first BMS 30, and the first communication patch cord 40 are disposed between the upper and lower surfaces of the independent energy storage module.
The two sampling terminals of the first BMS 30 are respectively provided at: a first connection port on the upper surface of the independent energy storage module connected to the positive electrode of the first battery module 10, and a second connection port on the lower surface of the independent energy storage module connected to the negative electrode of the first battery module 10.
The two poles of the first battery module 10 are connected with the power input interface of the independent energy storage module through the charging branch 60, and the two poles of the first battery module 10 are also connected with the power output interface of the independent energy storage module through the discharging branch 50; the control terminals of the charging branch 60 and the discharging branch 50 are connected to the first BMS 30 (not shown in fig. 1 for a simplified view).
The working principle is as follows:
when the independent energy storage module performs independent charging, the first BMS 30 acquires the voltage state of the charging branch 60, and controls the charging branch 60 to be turned on to charge the first battery module 10, that is, to charge the independent energy storage module, when the voltage thereof conforms to a reasonable state.
When the independent energy storage module independently discharges, the first BMS 30 acquires the voltage state of the discharging branch 50, and controls the discharging branch 50 to be turned on when the voltage thereof conforms to a reasonable state, and the first battery module 10 discharges outwardly, that is, the independent energy storage module discharges outwardly.
Since the independent energy storage module includes the first battery module 10, the first power patch cord 20, the first BMS 30, and the first communication patch cord 40, and these devices are disposed between the upper and lower surfaces of the independent energy storage module, that is, the structure of the energy storage module in the energy storage system in the related art is the same, the independent energy storage module can be used as the energy storage module in the energy storage system.
In addition, since the charging branch 60 is provided between the connection terminal of the first battery module 10 and the power input interface thereof and the discharging branch 50 is provided between the connection terminal of the first battery module 10 and the power output interface thereof, the independent energy storage module can be independently charged and discharged.
To sum up, the independent energy storage module that this application provided can realize energy storage module's independent charge-discharge among the energy storage system.
It is worth to be noted that, because the independent energy storage module can be charged and discharged independently, the independent energy storage module can replace a vehicle-mounted mobile power supply to meet the outdoor power demand of a user, so that the energy storage module has various use scenes and abundant functional configurations; in addition, because the independent energy storage module can be put back to the energy storage system, the problem that the vehicle-mounted mobile power supply is always in an idle state can be solved, namely, the product utilization rate is improved, and the vehicle-mounted mobile power supply is in a half-load or no-load state during use.
Another embodiment of the present application provides a specific implementation manner of the charging branch 60, and the specific structure thereof is as shown in fig. 2, and specifically includes: a charge-discharge controller 51, a first relay 52, and at least one first power conversion unit 53; the specific connection relationship is as follows:
the power input interface on the independent energy storage module comprises at least one sub-input interface, and the first side of each first power conversion unit 53 is connected with the sub-input interface corresponding to one; a second side of each first power conversion unit 53 is connected to an input terminal of the charge and discharge controller 51; the second side of the first power conversion unit 53 is a direct current side; two output terminals of the charge and discharge controller 51 are connected to two terminals of the first battery module 10 through a first relay 52; each of the first power conversion unit 53, the charge and discharge controller 51, and the first relay 52 is connected to the first BMS 30 (not shown in fig. 2 for simplicity of view).
Preferably, CAN communication is used between the BMS and the charging branch 60 and between the BMS and the discharging branch 50, which is within the scope of the present application in practical applications, including but not limited thereto, as the case may be.
The number of the first power conversion units 53 may be set according to specific requirements, and is not specifically limited herein; the input requirement of each first power conversion unit 53 may also be set according to specific requirements, which are not specifically limited herein, for example, the input of one first power conversion unit 53 is 24Vdc, and the input of another power conversion unit is 12Vdc, that is, the independent energy storage module can be charged by the energy storage batteries of 12V and 24V.
Optionally, the first power conversion unit 53 may be a DCDC converter, or an ACDC converter, and in practical applications, including but not limited to this, as long as one side is a current conversion circuit of a dc side, this is not particularly limited herein, and it is within the protection scope of the present application as the case may be.
When the first power conversion unit 53 is a DCDC converter, the corresponding sub-input interface is connected to the dc output end of the energy storage system or the photovoltaic power generation apparatus; in practical applications, including but not limited to, this, it is not limited specifically here, and it is within the scope of this application as the case may be.
When the first power conversion unit 53 is an ACDC converter, the corresponding sub-input interface is connected to an ac output terminal of the grid or the energy storage system; in practical applications, including but not limited to, this, it is not limited specifically here, and it is within the scope of this application as the case may be.
The working principle is as follows:
when the independent energy storage module is charged alone, the first BMS 30 detects each sub-input interface through each first power conversion unit 53, and controls the corresponding first power conversion unit 53 to start operating after determining the powered sub-input interface; thereafter, the first BMS 30 detects whether the output voltage of the corresponding first power conversion unit 53 is in a reasonable state through the charge and discharge controller 51, and turns on the first relay 52 to charge the first battery module 10 after the output voltage of the corresponding first power conversion unit 53 is in a reasonable state.
The present embodiment further provides a specific implementation of the charging branch 60, and the specific structure of the charging branch is as shown in fig. 3, and on the basis of the foregoing implementation, the charging branch further includes: at least one diode Z; anodes of the diodes Z are respectively connected to second-side anodes of the first power conversion units 53 corresponding to one another, and cathodes of the diodes Z are respectively connected to an input-end anode of the charge/discharge controller 51.
In this embodiment, a diode is added to avoid the charging branch 60 from causing damage to the power device due to the backward flow of current.
Another embodiment of the present application provides a specific structure of the discharging branch 50, as shown in fig. 4, the charging/discharging controller 51 is shared by the discharging branch 50 and the charging branch 60, and besides the charging/discharging controller 51, the discharging branch 50 further includes: a second relay 61 and at least one second power conversion unit 62; the specific connection relationship is as follows:
the input end of the charge and discharge controller 51 is connected to two poles of the first battery module 10, the output end of the charge and discharge controller 51 is connected to the first side of each second power conversion unit 62 through a second relay 61, and the first side of each second power conversion unit 62 is a dc side; the power output interface on the independent energy storage module comprises at least one sub-output interface, and the second side of each second power conversion unit 62 is connected with the sub-output interfaces corresponding to one another; each of the second power conversion unit 62 and the second relay 61 is connected to the first BMS 30.
The number of the second power conversion units 62 may be set according to specific requirements, and is not specifically limited herein; the output requirement of each second power conversion unit 62 may also be set according to specific requirements, and is not limited to this, for example, the output of one second power conversion unit 62 is 24Vdc, the input of one power conversion unit is 12Vdc, the output of one second power conversion unit 62 is 2ac, and the output of one second power conversion unit 62 is 5 Vac.
Optionally, the second power conversion unit 62 may be a DCDC converter or an ACDC converter, and in practical applications, including but not limited to this, as long as one side is a current conversion circuit of a dc side, this is not particularly limited herein, and it is within the protection scope of the present application as the case may be.
When the second power conversion unit 62 is a DCDC converter, the corresponding sub-output interface is connected to a dc load, and when the first power conversion unit 53 is an ACDC converter, the corresponding sub-output interface is connected to an ac load, which is not specifically limited herein and can be selected according to actual situations.
The working principle is as follows:
when the independent energy storage module is independently discharged, the first BMS 30 detects the voltage state of the first battery module 10 through the charge and discharge controller 51, and turns on the second relay 61 after the voltage of the first battery module 10 conforms to a reasonable state; the first BMS 30 detects the sub output interfaces through the second power conversion units 62, and controls the corresponding second power conversion units 62 to start operating and discharge the first battery module 10 after determining the sub output interface to which the load is connected.
Another embodiment of the present application provides another implementation of an independent energy storage module, which has a specific structure as shown in fig. 5 (tactics is performed only on the basis of the figure), and further includes, on the basis of the above embodiment: the first voltage stabilization module 70.
The first voltage stabilization module 70 is provided with: the positive electrode of the first battery module 10 is connected with the first connection port of the independent energy storage module, or the negative electrode of the first battery module 10 is connected with the second connection port of the independent energy storage module; the first BMS 30 is connected to a control terminal of the first voltage stabilization module 70 (not shown in fig. 5 for a simplified view).
Optionally, the first voltage stabilizing module 70 is a DCDC converter; in practical applications, including but not limited to, this, it is not limited specifically here, and it is within the scope of this application as the case may be.
It should be noted that the function of the first voltage stabilizing module 70 is the same as that of the prior art, and the detailed description thereof is omitted, and reference may be made to the description of the prior art.
Another embodiment of the present application provides an energy storage system, a specific structure of which is shown in fig. 6, including: top cover 100, base 400, and at least two energy storage modules.
The energy storage modules are layered and overlapped between the top cover 100 and the base 400; at least one energy storage module is the independent energy storage module 200 provided in the above embodiments; at least one energy storage module is a dependent energy storage module 300.
As shown in fig. 6, each dependent energy storage module 300 includes a second battery module 310, a second power patch cord 320, a second BMS 330, and a second communication patch cord 340, and the second battery module 310, the second power patch cord 320, the second BMS 330, and the second communication patch cord 340 are disposed between the upper and lower surfaces of the dependent energy storage module 300; two sampling terminals of the second BMS 330 are respectively provided at: a third connection port on the upper surface of the non-independent energy storage module 300 connected to the positive electrode of the second battery module 310, and a fourth connection port on the lower surface of the non-independent energy storage module 300 connected to the negative electrode of the second battery module 310.
In practical applications, as shown in fig. 7, each dependent energy storage module 300 further includes a second voltage regulation module 350, and the second voltage regulation module 350 is disposed at: the positive electrode of the second battery module 310 is connected to the third connection port of the non-independent energy storage module 300, or the negative electrode of the second battery module 310 is connected to the fourth connection port of the non-independent energy storage module 300; the second BMS 330 is connected to a control terminal of the second voltage stabilization module 350 (not shown in fig. 7 for a simplified view).
Optionally, the second voltage stabilizing module 350 is a DCDC converter; in practical applications, including but not limited to, this, it is not limited specifically here, and it is within the scope of this application as the case may be.
As shown in fig. 6, the top cover 100 includes a third BMS 110 and a charge and discharge integration module 120; the connection relationship is as follows:
a first side positive electrode and a first side negative electrode of the charge and discharge integrated module 120 are both arranged on the lower surface of the top cover 100; the first side positive electrode of the charge and discharge integrated module 120 is connected to the first connection port of the adjacent independent energy storage module 200, or connected to the third connection port of the adjacent dependent energy storage module 300; the first side negative electrode of the charging and discharging integrated module 120 is connected to the first power patch cord 20 of the adjacent independent energy storage module 200, or connected to the second power patch cord 320 of the adjacent dependent energy storage module 300. The second side of the charging and discharging integrated module 120 serves as an input port of the energy storage system, and the third side of the charging and discharging integrated module 120 serves as an output port of the energy storage system.
The communication input terminal of the third BMS 110 and the communication output terminal of the third BMS 110 are disposed at the lower surface of the top cover 100; the communication input terminal of the third BMS 110 is connected to the communication output terminal of the first BMS 30 in the adjacent independent energy storage module 200 or to the communication output terminal of the second BMS 330 in the adjacent non-independent energy storage module 300; the communication output terminal of the third BMS 110 is connected to the communication input terminal of the first BMS 30 in the adjacent independent energy storage module 200 or to the communication input terminal of the second BMS 330 in the adjacent non-independent energy storage module 300; the third BMS 110 is connected to the charge and discharge integration module 120.
It should be noted that the third BMS 110 is a master BMS, the first BMS 30 and the second BMS 330 are both slave BMSs, and the master BMS is communicatively connected to the adjacent slave BMSs, thereby achieving the communicative connection between the master BMS and each of the slave BMSs.
During operation, the master BMS obtains the verification result from each slave BMS, and judges the state of the whole circuit according to the verification result, if the state is abnormal, the master BMS controls the charging and discharging integrated module 120 to stop running.
In actual use, the energy storage system is charged in a commercial power and photovoltaic solar energy mode; when photovoltaic solar energy is utilized, an inverter can be arranged externally, and the inverter can also be arranged in an energy storage system.
One preferred embodiment is: all the independent energy storage modules 200 are superposed on all the dependent energy storage modules 300; therefore, the independent energy storage module 200 can be taken conveniently, and the use experience of a user is improved.
The above is only one arrangement of the energy storage modules, and in practical applications, including but not limited to this, it is within the scope of the present application.
Optionally, in the energy storage system, each interface between the top cover 100 and the energy storage module, each interface between the base 400 and the energy storage module, and each interface between two energy storage modules all adopt an air-plug interface; in practical applications, including but not limited to, this, can be determined according to specific situations and is within the protection scope of the present application.
In the above description of the disclosed embodiments, features described in various embodiments in this specification can be substituted for or combined with each other to enable those skilled in the art to make or use the present application. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The invention is not limited to the embodiments described herein, and it is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown, unless otherwise specified, but may be embodied in various forms and modifications within the scope of the appended claims. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (15)
1. A self-contained energy storage module, comprising: the system comprises a first battery module, a first power patch cord, a first BMS, a first communication patch cord, a discharging branch and a charging branch; wherein:
the first battery module, the first power patch cord, the first BMS and the first communication patch cord are all arranged between the upper surface and the lower surface of the independent energy storage module;
two sampling ends of the first BMS are respectively arranged in: a first connection port on the upper surface connected to a positive electrode of the first battery module, and a second connection port on the lower surface connected to a negative electrode of the first battery module;
the two poles of the first battery module are connected with the power input interface of the independent energy storage module through the charging branch circuit, and the two poles of the first battery module are also connected with the power output interface of the independent energy storage module through the discharging branch circuit;
and the control end of the charging branch and the control end of the discharging branch are connected with the first BMS.
2. The self-contained energy storage module of claim 1, wherein the charging branch comprises: a charge-discharge controller, a first relay, and at least one first power conversion unit; wherein:
the power input interface on the independent energy storage module comprises at least one sub-input interface, and the first side of each first power conversion unit is respectively connected with the sub-input interfaces in one-to-one correspondence;
the second side of each first power conversion unit is connected with the input end of the charge-discharge controller; the second side of the first power conversion unit is a direct current side;
two output terminals of the charge and discharge controller are connected with two terminals of the first battery module through the first relay;
each of the first power conversion unit, the charge and discharge controller, and the first relay are connected to the first BMS.
3. The self-contained energy storage module of claim 2, wherein the first power conversion unit comprises: a DCDC converter or an ACDC converter.
4. The self-contained energy storage module of claim 2, wherein the charging branch further comprises: at least one diode; wherein:
and anodes of the diodes are respectively connected with anodes of second sides of the first power conversion units in one-to-one correspondence, and cathodes of the diodes are respectively connected with anodes of input ends of the charge and discharge controllers.
5. The self-contained energy storage module of claim 2, wherein the discharge branch and the charge branch share the charge-discharge controller.
6. The self-contained energy storage module of claim 5, wherein the discharge branch further comprises: a second relay and at least one second power conversion unit; wherein:
the two poles of the input end of the charge and discharge controller are connected with the two poles of the first battery module, the output end of the charge and discharge controller is respectively connected with the first side of each second power conversion unit through the second relay, and the first side of each second power conversion unit is a direct current side;
the power output interfaces on the independent energy storage modules comprise at least one sub-output interface, and the second sides of the second power conversion units are respectively connected with the sub-output interfaces in one-to-one correspondence;
each of the second power conversion unit and the second relay is connected to the first BMS.
7. The self-contained energy storage module of claim 6, wherein the second power conversion unit comprises: a DCDC converter or a DCAC converter.
8. The self-contained energy storage module of any one of claims 1 to 7, further comprising: a first voltage stabilization module; wherein:
the first voltage stabilizing module is arranged in: the positive electrode of the first battery module is connected with the first connection port of the independent energy storage module, or the negative electrode of the first battery module is connected with the second connection port of the independent energy storage module;
the first BMS is connected with a control end of the first voltage stabilizing module.
9. The self-contained energy storage module of claim 8, wherein the first voltage regulation module is a DCDC converter.
10. An energy storage system, comprising: the energy storage device comprises a top cover, a base and at least two energy storage modules; wherein:
the energy storage modules are stacked between the top cover and the base in a layered manner;
at least one of the energy storage modules is a self-contained energy storage module as claimed in any one of claims 1 to 9;
at least one of the energy storage modules is a dependent energy storage module.
11. The energy storage system of claim 10, wherein the non-self-contained energy storage module comprises: a second battery module, a second power patch cord, a second BMS and a second communication patch cord; wherein:
the second battery module, the second power patch cord, the second BMS and the second communication patch cord are arranged between the upper surface and the lower surface of the dependent energy storage module;
two sampling ends of the second BMS are respectively arranged in: and the upper surface of the first connecting port is connected with the positive electrode of the first battery module, and the lower surface of the first connecting port is connected with the negative electrode of the first battery module.
12. The energy storage system of claim 11, wherein the non-self-contained energy storage module further comprises: a second voltage stabilization module; wherein:
the second voltage stabilizing module is arranged in: the positive electrode of the second battery module is connected with the third connection port, or the negative electrode of the second battery module is connected with the fourth connection port;
the second BMS is connected with the control end of the second voltage stabilizing module.
13. The energy storage system of claim 12, wherein the second voltage regulation module is a DCDC converter.
14. The energy storage system of any of claims 10 to 13, wherein each interface between the top cover and the energy storage modules, each interface between the base and the energy storage modules, and each interface between two energy storage modules are aerial plug interfaces.
15. The energy storage system of any of claims 10-13, wherein all of the independent energy storage modules are superimposed on all of the non-independent energy storage modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220790518.XU CN217427717U (en) | 2022-04-07 | 2022-04-07 | Independent energy storage module and energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220790518.XU CN217427717U (en) | 2022-04-07 | 2022-04-07 | Independent energy storage module and energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217427717U true CN217427717U (en) | 2022-09-13 |
Family
ID=83182966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220790518.XU Active CN217427717U (en) | 2022-04-07 | 2022-04-07 | Independent energy storage module and energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217427717U (en) |
-
2022
- 2022-04-07 CN CN202220790518.XU patent/CN217427717U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102113192B (en) | Multipurpose portable storage and supply system | |
| CN111497670B (en) | Charging device, system and method | |
| CN112519620B (en) | Flexible charging system for electric automobile and control method | |
| CN104092236B (en) | hybrid renewable energy and energy storage system power supply system and control method thereof | |
| CN102148512A (en) | Charger and charging method thereof | |
| CN202888862U (en) | Energy storage inverter suitable for distributed new energy power | |
| CN112909914A (en) | Intelligent direct-current micro-grid system suitable for building comprehensive energy supply station | |
| CN210468814U (en) | Charging and storing integrated device based on multiplexing bidirectional DCDC converter | |
| KR102092088B1 (en) | Apparatus and method for energy storage system controlling operating mode | |
| CN111293777A (en) | Uninterrupted power supply system and method for multi-station fusion in power operation | |
| CN106026174B (en) | A kind of grid-connected photovoltaic system with intelligent power dividing function | |
| CN205622244U (en) | Power supply access device | |
| CN210941427U (en) | Fuel cell power generation, storage and charging system | |
| CN109494860B (en) | Online interactive solar grid-connected and off-grid energy storage three-in-one all-in-one machine and control method | |
| CN217427717U (en) | Independent energy storage module and energy storage system | |
| CN217882946U (en) | Parallel direct-current power supply | |
| CN116455045A (en) | Base station light reserve power supply guarantee system based on lead-acid storage battery | |
| CN202949236U (en) | Distributed power supply control system | |
| CN215300264U (en) | Energy-saving power supply system for IT equipment | |
| CN113281672B (en) | Battery pack detection control method, energy storage conversion system and computer readable storage medium | |
| CN115441486A (en) | Light storage charging and discharging battery replacing system and system matching method | |
| CN201616699U (en) | Charger | |
| CN211981550U (en) | Movable multifunctional modular energy storage device | |
| CN214028277U (en) | Electric automobile charging system capable of peak clipping and valley filling | |
| CN212627214U (en) | Power management system for unattended bayonet and unattended bayonet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |