CN219801959U - Energy storage conflux cabinet and use energy storage system of this energy storage conflux cabinet - Google Patents
Energy storage conflux cabinet and use energy storage system of this energy storage conflux cabinet Download PDFInfo
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- CN219801959U CN219801959U CN202321365708.8U CN202321365708U CN219801959U CN 219801959 U CN219801959 U CN 219801959U CN 202321365708 U CN202321365708 U CN 202321365708U CN 219801959 U CN219801959 U CN 219801959U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 119
- 238000004891 communication Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 description 12
- 238000007599 discharging Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Abstract
The utility model relates to the field of energy storage, in particular to an energy storage confluence cabinet and an energy storage system using the same. The energy storage busbar cabinet comprises a positive electrode input busbar and a negative electrode input busbar, wherein input connectors are respectively arranged on the positive electrode input busbar and the negative electrode input busbar and used for being connected with a battery cluster, the energy storage busbar cabinet further comprises connectors used for being connected with a standby power supply, and the connectors are respectively connected to the positive electrode input busbar and the negative electrode input busbar through positive electrode lines and negative electrode lines. Through setting up the connector, be convenient for introduce other power after the battery cluster breaks down, replace corresponding battery cluster, be convenient for preset in advance through anodal circuit and negative pole circuit connection, and then solved among the prior art when the battery cluster breaks down can only be with the problem that the battery cluster load increases in the whole charge-discharge capacity of system and the cause other energy storage system of battery cluster down conductance influence.
Description
Technical Field
The utility model relates to the field of energy storage, in particular to an energy storage confluence cabinet and an energy storage system using the same.
Background
In addition to grid connection of generated electricity in solar power generation or wind power generation, there is a means for storing electric energy and discharging the electric energy when needed, so that an energy storage system is needed, and an energy storage bus cabinet is a key component in the energy storage system. The input end of the energy storage conflux cabinet is connected with the battery cluster, and the output end is connected with the energy storage converter, plays the effect of taking the effect of going up and down.
The structure of the energy storage system in the prior art is shown in fig. 1, wherein a battery cluster 1 stores electric quantity, the battery cluster 1 is connected with an energy storage convergence cabinet 2, the energy storage convergence cabinet 2 is electrically connected with an energy storage converter 3, and then the energy storage convergence cabinet is subjected to alternating current-direct current conversion under the action of the energy storage converter 3, so that electric energy is transmitted to a part needing to use electric power or is connected with a power grid. The energy storage busbar cabinet 2 comprises a positive electrode input busbar 21 and a negative electrode input busbar 22, input connectors are respectively arranged on the positive electrode input busbar 21 and the negative electrode input busbar 22 and are used for being connected with the battery cluster 1, and a plurality of energy storage systems can be connected in parallel.
When the battery cluster of the energy storage system has problems, such as cluster communication loss, cluster SOC abnormality and the like, the existing fault processing method generally breaks a main breaker in the energy storage bus cabinet, breaks all connection parts of all clusters and buses to be powered down, and can be powered up again after fault investigation and elimination. The following problems exist in this fault handling method: the part can cause interruption of power supply to the energy storage unit in the overhaul process, the whole charging and discharging capacity of the system can be influenced, and the whole power-down of the system can be caused when serious; and the battery clusters of the group are all withdrawn, so that the load of the rest battery clusters is suddenly increased or overloaded.
Disclosure of Invention
The utility model aims to provide an energy storage bus cabinet which is used for solving the problems that in the prior art, when a battery cluster fails, the charging and discharging capacity of the whole system is affected and the load of the battery cluster in other energy storage systems is increased due to the fact that the electricity of all the battery clusters can be conducted downwards; the utility model also aims to provide an energy storage system which is used for solving the technical problems.
In order to achieve the above purpose, the energy storage bus cabinet of the utility model adopts the following technical scheme:
the utility model provides an energy storage busbar, includes positive electrode input busbar and negative electrode input busbar, is equipped with the input connection on positive electrode input busbar and the negative electrode input busbar respectively and is used for connecting the battery cluster, and energy storage busbar still includes the connector that is used for connecting standby power supply, and the connector is connected to positive electrode input busbar and negative electrode input busbar through anodal circuit and negative electrode circuit respectively.
The beneficial effects of the technical scheme are that: the utility model improves the existing energy storage bus cabinet, facilitates the introduction of other power supplies after the battery cluster fails, replaces the corresponding battery cluster, is convenient for presetting in advance by connecting the positive electrode circuit with the negative electrode circuit, and can be connected into the energy storage bus cabinet directly through the connector when in use, that is to say, after a certain battery cluster fails, the battery cluster can not continue discharging the energy storage bus cabinet, so that a new power supply is introduced by the connector, and the part of the electric quantity which can not be emitted by the corresponding failed battery cluster is supplemented, thereby solving the problems that the whole charging and discharging capacity of the system is influenced and the load of the battery cluster in other energy storage systems is increased due to the fact that when the battery cluster fails, all the battery clusters can only be powered down in the prior art.
Further, a switch is provided on the positive electrode line and/or the negative electrode line.
The beneficial effects of the technical scheme are that: the on-off between the connector and the input bus is conveniently controlled by the setting switch, so that the connector can be connected into a standby power supply in advance, and only the switch is required to be controlled when needed.
Further, a circuit protection unit for preventing excessive voltage or current is arranged on the positive electrode line and/or the negative electrode line.
The beneficial effects of the technical scheme are that: the circuit protection unit is arranged to protect the circuit and the standby power supply at the connector conveniently.
Further, the connector is mounted on the side wall of the tank body of the energy storage confluence tank.
The beneficial effects of the technical scheme are that: the connection is simple, and the use is more convenient.
Further, the connector includes a power input terminal and a communication input terminal.
The beneficial effects of the technical scheme are that: the system can be used for transmitting current and signals and can be used for monitoring the real-time state of the standby power supply.
In order to achieve the above purpose, the energy storage system in the utility model adopts the following technical scheme:
the utility model provides an energy storage system, includes battery cluster, energy storage conflux cabinet and the energy storage unit that connects gradually, and wherein energy storage conflux cabinet includes positive electrode input busbar and negative electrode input busbar, is equipped with the input connection respectively on positive electrode input busbar and the negative electrode input busbar and is used for connecting battery cluster, and energy storage conflux cabinet still includes the connector that is used for connecting stand-by power supply, and the connector is connected to positive electrode input busbar and negative electrode input busbar through anodal circuit and negative electrode circuit respectively.
The beneficial effects of the technical scheme are that: the utility model improves the existing energy storage system, facilitates the introduction of a standby power supply after the failure of a battery cluster, replaces the corresponding battery cluster, is convenient for presetting in advance by connecting the positive electrode circuit with the negative electrode circuit, and can be connected into the energy storage bus cabinet directly through the connector when in use, namely after the failure of a certain battery cluster, the battery cluster can not continue to discharge the energy storage bus cabinet, so that a new power supply is introduced by using the connector, the missing part of electric quantity which can not be emitted by the corresponding failed battery cluster is supplemented, and the problems that the whole charge and discharge capacity of the system is influenced and the load of the battery clusters in other energy storage systems is increased due to the fact that when the failure of the battery cluster occurs, all the battery clusters can only be conducted down in the prior art are solved.
Further, a switch is provided on the positive electrode line and/or the negative electrode line.
The beneficial effects of the technical scheme are that: the on-off between the connector and the input bus is conveniently controlled by the setting switch, so that the connector can be connected into a standby power supply in advance, and only the switch is required to be controlled when needed.
Further, a circuit protection unit for preventing excessive voltage or current is arranged on the positive electrode line and/or the negative electrode line.
The beneficial effects of the technical scheme are that: the circuit protection unit is arranged to protect the circuit and the standby power supply at the connector conveniently.
Further, the connector is mounted on the side wall of the tank body of the energy storage confluence tank.
The beneficial effects of the technical scheme are that: the connection is simple, and the use is more convenient.
Further, the connector includes a power input terminal and a communication input terminal.
The beneficial effects of the technical scheme are that: the system can be used for transmitting current and signals and can be used for monitoring the real-time state of the standby power supply.
Further, the energy storage system further comprises a standby power supply, and the standby power supply is a power supply vehicle.
The beneficial effects of the technical scheme are that: different voltages and currents are conveniently output according to requirements through pre-connecting the power supply vehicle in advance, and adverse effects caused by power-down of a fault battery cluster are timely supplemented.
Further, the energy storage system further comprises a control unit for controlling the standby power supply to be connected with the energy storage bus cabinet and judging whether the standby power supply meets the requirement.
The beneficial effects of the technical scheme are that: the automatic control is facilitated by the control unit, and the real-time state of the standby power supply is monitored in the control process.
Drawings
FIG. 1 is a schematic diagram of a prior art connection of an energy storage system;
FIG. 2 is a schematic diagram illustrating the connection of embodiment 1 of the energy storage system of the present utility model;
FIG. 3 is a block diagram illustrating a process for switching between backup power sources in an energy storage system according to the present utility model.
In the figure: 1. a battery cluster; 2. an energy storage confluence cabinet; 21. a positive electrode input bus; 22. a negative electrode input bus; 23. a positive electrode output bus; 24. a negative electrode output bus; 25. a circuit breaker; 26. a fuse; 27. a contactor; 28. a connector; 3. an energy storage converter.
Detailed Description
The features and capabilities of the present utility model are described in further detail below in connection with the examples.
In embodiment 1 of the energy storage system in the present utility model:
the energy storage busbar cabinet in this embodiment has add the connector to connect with the input busbar, when the battery cluster of being connected with the input busbar breaks down, uses the connector to insert other stand-by power supply and supplies power, avoids the problem that can only lower the electricity and influence the holistic charge-discharge ability of system and cause other battery cluster load to increase when the battery cluster breaks down.
As shown in fig. 2, the energy storage system in this embodiment includes a battery cluster 1, an energy storage busbar 2 electrically connected to the battery cluster 1, and an energy storage unit electrically connected to the energy storage busbar 2, where the energy storage unit in this embodiment is an energy storage converter 3. In addition, the energy storage system further includes a connector 28 and a standby power supply connected to the connector 28, which in this embodiment is a power supply vehicle.
The energy storage bus cabinet 2 includes an input bus bar and an output bus bar, a circuit breaker 25 is connected between the input bus bar and the output bus bar, the input bus bar is provided with an input connector for connecting the battery cluster 1, the input bus bar includes a positive electrode input bus bar 21 and a negative electrode input bus bar 22, the output bus bar includes a positive electrode output bus bar 23 and a negative electrode output bus bar 24, and a surge protector is provided on the positive electrode output bus bar 23 and the negative electrode output bus bar 24. The energy storage busbar 2 further comprises a connector 28 for connecting to a backup power supply, the connector 28 being connected to the input busbar by way of a line.
The connector 28 is a socket mounted on the side wall of the tank body of the energy storage bus cabinet 2, and comprises a power input terminal and a communication input terminal. The power input terminal has two terminals connected to a positive electrode input bus bar 21 and a negative electrode input bus bar 22 by a positive electrode line and a negative electrode line, respectively. The negative electrode line is provided with a switch, the positive electrode line is provided with a circuit protection unit for preventing the voltage or the current from being overlarge, the circuit protection unit in the embodiment is a fuse 26, when the large voltage or the large current appears in the circuit, the fuse can occur to protect the circuit, and the switch is a contactor 27 and is used for controlling under the large voltage. Of course, in other embodiments, the circuit protection unit may be a fuse, and the switch may be a knife. The fuse 26, the contactor 27 and the connector 28 together constitute an emergency circuit.
The input bus bar electrically connects the battery cluster 1 with the input bus bar through a lead wire line on which a shorting switch (not shown in the figure) for shorting the battery cluster 1 is provided. The energy storage system is also provided with a control unit which is used for controlling the standby power supply to be connected to the energy storage bus cabinet 2 and judging whether the standby power supply meets the requirement. When the connector 28 is in communication with the input bus, the shorting switch is simultaneously switched to disengage the failed battery cluster 1 from the energy storage bus 2.
As shown in fig. 2 and 3, when the energy storage system fails in the use process of the battery cluster 1, and cannot continuously input electric energy into the energy storage bus cabinet 2, the control unit detects the corresponding failure and disconnects the connection between the battery cluster 1 and the input bus, i.e. disconnects the shorting switch. The circuit breaker 25 in the energy storage bus 2 is then opened and the fault information is uploaded, requesting the energy storage converter 3 to shut down and requesting access to a backup power supply. And then judging whether the power supply vehicle is connected to the connector 28 or not, sending a demand to the power supply vehicle after detecting that the power supply vehicle is connected to the connector 28, sequentially closing a switch on an emergency circuit and closing a breaker 25 of the energy storage bus cabinet 2 after the output current and the voltage of the power supply vehicle meet the demand, powering up the energy storage system normally at the moment, judging whether the standby power supply meets the demand or not in a delayed mode if the standby power supply does not meet the demand, and reporting a fault and ending if the standby power supply does not meet the demand.
In embodiment 2 of the energy storage system of the present utility model: the present embodiment proposes a new arrangement for the arrangement of the energy storage system. Unlike embodiment 1, the energy storage system in this embodiment is not provided with a control unit, and is controlled and switched manually.
In embodiment 3 of the energy storage system of the present utility model: the present embodiment proposes a new arrangement for the arrangement of the energy storage system. Unlike embodiment 1, the energy storage system in this embodiment no longer includes a standby power supply, and requires a user to configure itself. Or other battery clusters are used as standby power sources, and when one battery cluster fails, the other battery clusters are additionally used as standby power sources for access.
In embodiment 4 of the energy storage system of the present utility model: with respect to the arrangement of the connectors, the present embodiment proposes a new arrangement. Unlike embodiment 1, the connector in this embodiment includes only the power input terminal and no more includes the communication input terminal.
In embodiment 5 of the energy storage system of the present utility model: with respect to the arrangement of the connectors, the present embodiment proposes a new arrangement. Unlike embodiment 1, the connector in this embodiment is a plug structure and is connected to the side wall of the energy storage bus cabinet through a power line. Of course, in other embodiments, the connector may be mounted on the top or bottom of the energy storage busway or a door may be provided on the energy storage busway and the connector may be provided within the energy storage busway.
In embodiment 6 of the energy storage system of the present utility model: aiming at the arrangement of the energy storage confluence cabinet, the embodiment provides a novel arrangement form. Unlike embodiment 1, the circuit protection unit is provided on the negative electrode line in this embodiment, but it is needless to say that the circuit protection unit may be provided on both the positive electrode line and the negative electrode line in other embodiments. Of course, in other embodiments, the circuit protection unit may not be provided.
In embodiment 7 of the energy storage system of the present utility model: aiming at the arrangement of the energy storage confluence cabinet, the embodiment provides a novel arrangement form. Unlike embodiment 1, in this embodiment, a switch is provided on the positive electrode line, but in other embodiments, a switch may be provided on both the positive electrode line and the negative electrode line. Of course, in other embodiments, the switch may not be provided.
In the embodiment of the energy storage bus cabinet in the present utility model, the energy storage bus cabinet in the present embodiment has the same structure as the energy storage bus cabinet in any embodiment of the energy storage system, and will not be repeated here.
The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The utility model provides an energy storage busbar cabinet, includes positive electrode input busbar (21) and negative electrode input busbar (22), is equipped with the input joint on positive electrode input busbar (21) and negative electrode input busbar (22) respectively and is used for connecting battery cluster (1), its characterized in that: the energy storage bus cabinet (2) further comprises a connector (28) for connecting a standby power supply, and the connector (28) is connected to the positive electrode input bus bar (21) and the negative electrode input bus bar (22) through a positive electrode line and a negative electrode line respectively.
2. The energy storage bustle according to claim 1, characterized in that: and a switch is arranged on the positive electrode line and/or the negative electrode line.
3. The energy storage bustle according to claim 1 or 2, characterized in that: the positive electrode line and/or the negative electrode line is provided with a circuit protection unit for preventing excessive voltage or current.
4. The energy storage bustle according to claim 1 or 2, characterized in that: the connector (28) is arranged on the side wall of the tank body of the energy storage confluence tank (2).
5. The energy storage bustle according to claim 1 or 2, characterized in that: the connector (28) includes a power input terminal and a communication input terminal.
6. The utility model provides an energy storage system, includes battery cluster (1), energy storage conflux cabinet (2) and energy storage unit that connects gradually, its characterized in that: the energy storage busbar (2) is identical to the energy storage busbar (2) of any of claims 1 to 5.
7. The energy storage system of claim 6, wherein: the energy storage system also comprises a standby power supply, and the standby power supply is a power supply vehicle.
8. The energy storage system of claim 7, wherein: the energy storage system further comprises a control unit for controlling the standby power supply to be connected to the energy storage bus cabinet (2) and judging whether the standby power supply meets the requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321365708.8U CN219801959U (en) | 2023-05-31 | 2023-05-31 | Energy storage conflux cabinet and use energy storage system of this energy storage conflux cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321365708.8U CN219801959U (en) | 2023-05-31 | 2023-05-31 | Energy storage conflux cabinet and use energy storage system of this energy storage conflux cabinet |
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| Publication Number | Publication Date |
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| CN219801959U true CN219801959U (en) | 2023-10-03 |
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| CN202321365708.8U Active CN219801959U (en) | 2023-05-31 | 2023-05-31 | Energy storage conflux cabinet and use energy storage system of this energy storage conflux cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117117811A (en) * | 2023-10-19 | 2023-11-24 | 新源智储能源发展(北京)有限公司 | Reverse connection preventing device of battery energy storage system and control method |
-
2023
- 2023-05-31 CN CN202321365708.8U patent/CN219801959U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117117811A (en) * | 2023-10-19 | 2023-11-24 | 新源智储能源发展(北京)有限公司 | Reverse connection preventing device of battery energy storage system and control method |
| CN117117811B (en) * | 2023-10-19 | 2024-01-05 | 新源智储能源发展(北京)有限公司 | Reverse connection preventing device of battery energy storage system and control method |
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