CN114243177B - Container type energy storage system - Google Patents

Container type energy storage system Download PDF

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Publication number
CN114243177B
CN114243177B CN202111296076.XA CN202111296076A CN114243177B CN 114243177 B CN114243177 B CN 114243177B CN 202111296076 A CN202111296076 A CN 202111296076A CN 114243177 B CN114243177 B CN 114243177B
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China
Prior art keywords
battery
voltage
control unit
energy storage
voltage box
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CN202111296076.XA
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Chinese (zh)
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CN114243177A (en
Inventor
李洁
姜力文
姚光辉
王伟超
李想
赵庆斌
吕喆
钱昊
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Beijing Hyperstrong Technology Co Ltd
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Beijing Hyperstrong Technology Co Ltd
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Priority to CN202111296076.XA priority Critical patent/CN114243177B/en
Publication of CN114243177A publication Critical patent/CN114243177A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application provides a container type energy storage system, which relates to the electric power technology and comprises: a plurality of battery clusters, an energy storage control structure; the energy storage control structure comprises an integrated high-voltage box structure and a control unit; each battery cluster comprises a plurality of battery modules connected in series, and the integrated high-voltage box structure comprises a high-voltage box correspondingly connected with each battery cluster; the integrated high-pressure box structure is connected with the control unit; the high-voltage box is correspondingly connected with each battery cluster and is used for receiving the user information fed back by the control unit and controlling the operation of the battery clusters according to the user information; and the control unit is used for acquiring the battery information acquired by each high-voltage box and the high-voltage box information of each high-voltage box, and controlling the operation of the user side equipment according to the battery information and the high-voltage box information. The scheme provided by the application integrates the high-voltage boxes into an integrated high-voltage box structure and places the integrated high-voltage box structure in an electric bin. If the high-voltage box fails, physical damage to the battery cluster can not be caused in a short time.

Description

Container type energy storage system
Technical Field
The application relates to the electric power technology, in particular to a container type energy storage system.
Background
With the development of society and the improvement of living standard of people, energy storage systems have been greatly developed. The energy storage system provides electrical energy to the user.
In the prior art, an energy storage system includes a plurality of battery clusters, a high voltage tank connected to each battery cluster, and a control structure. Wherein the battery cluster and the high-voltage box are arranged together.
In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: because the battery cluster and the high-voltage box are arranged together, if the control part of the high-voltage box fails, physical damage can be directly caused to the battery cluster, and the whole energy storage system is caused to fail, so that electric energy cannot be normally provided for a user.
Disclosure of Invention
The application provides a container type energy storage system, which aims to solve the problems that at least the battery cluster and a high-voltage box are arranged together in the prior art, and if the control part of the high-voltage box fails, the control part directly causes physical damage to the battery cluster, and the whole energy storage system fails, so that electric energy cannot be normally supplied to a user.
According to a first aspect of the present application there is provided a container-type energy storage system comprising: a plurality of battery clusters, and an energy storage control structure; the energy storage control structure comprises an integrated high-voltage box structure and a control unit;
each battery cluster comprises a plurality of battery modules connected in series, and the integrated high-voltage box structure comprises a high-voltage box correspondingly connected with each battery cluster; the integrated high-pressure tank structure is connected with the control unit;
The high-voltage boxes are correspondingly connected with each battery cluster and are used for receiving the user information fed back by the control unit and controlling the operation of the battery clusters according to the user information;
The control unit is used for acquiring the battery information acquired by each high-voltage box and the high-voltage box information of each high-voltage box, and controlling the operation of the user side equipment according to the battery information and the high-voltage box information.
In one embodiment of the application, the integrated high pressure tank structure further comprises a housing structure; each of the high pressure tanks is disposed in the housing structure; each of the high pressure tanks is arranged in a plurality of rows in the housing structure.
In one embodiment of the application, a first integrated interface is arranged on the integrated high-pressure tank structure;
the first integrated interface comprises a first interface corresponding to each battery cluster; each battery cluster and the corresponding high-voltage box of each battery cluster are connected through a first interface.
In one embodiment of the application, a second integrated interface is arranged on the integrated high-pressure tank structure;
The second integrated interface comprises a plurality of second interfaces; the substructure in the control unit is connected with each high-pressure tank through a corresponding second interface.
In one embodiment of the application, the control unit comprises: a control cabinet and at least one confluence control unit;
The integrated high-voltage box structure is connected with the control cabinet; the control cabinet is connected with each converging control unit;
each high-pressure tank in the integrated high-pressure tank structure forms a plurality of high-pressure tank groups; each high-pressure tank group comprises at least one high-pressure tank; each converging control unit and the high-pressure box group corresponding to the converging control unit are correspondingly connected;
the control cabinet is used for acquiring battery information acquired by each high-voltage box and high-voltage box information of each high-voltage box, and controlling operation of user side equipment according to the battery information and the high-voltage box information;
Each confluence control unit is used for carrying out confluence processing on each battery cluster under the high-voltage box group corresponding to the confluence control unit to obtain confluence information of the batteries; and carrying out power supply processing for the user side equipment according to the battery confluence information.
In one embodiment of the present application, each of the bus control units is further configured to perform charging processing on each battery cluster under the high-voltage box group corresponding to the bus control unit according to the battery bus information.
In one embodiment of the present application, each of the bus control units is an energy storage converter, and the energy storage converters have a bus cabinet function.
In one embodiment of the present application, each of the bus control units includes a bus cabinet and an energy storage converter connected to each other; the convergence cabinets in each convergence control unit are connected with the control cabinet; and the converging cabinets in each converging control unit and the high-voltage box group corresponding to the converging control units are correspondingly connected.
In one embodiment of the present application, the integrated high-voltage box structure, the control cabinet, and the convergence cabinets in the convergence control units are disposed in a first warehouse structure;
The energy storage converters in the converging control units are arranged in the second storage structure.
In one embodiment of the application, each of the busbar control units is connected to the integrated high voltage tank structure by a high voltage harness;
Each converging control unit is connected with the control cabinet through a low-voltage wire harness, and the low-voltage wire harness comprises a communication wire harness and a control wire harness.
The application provides a container type energy storage system, which comprises a plurality of battery clusters and an energy storage control structure; the energy storage control structure comprises an integrated high-voltage box structure and a control unit; each battery cluster comprises a plurality of battery modules connected in series, and the integrated high-voltage box structure comprises a high-voltage box correspondingly connected with each battery cluster; the integrated high-pressure box structure is connected with the control unit; the high-voltage box is correspondingly connected with each battery cluster and is used for receiving the user information fed back by the control unit and controlling the operation of the battery clusters according to the user information; and the control unit is used for acquiring the battery information acquired by each high-voltage box and the high-voltage box information of each high-voltage box, and controlling the operation of the user side equipment according to the battery information and the high-voltage box information. According to the container type energy storage system provided by the application, all the high-voltage boxes which are originally and independently placed in the battery cluster are taken out and are intensively placed in the integrated high-voltage box structure, and the integrated high-voltage box structure and the control unit are placed in the electric bin. The integrated high-voltage box structure and the control unit are closer in distance, and the communication wire harness and the power wire harness can avoid flat traveling wires and are shorter in distance, so that the interference to the communication wire harness is small. If the high-voltage box fails, the battery clusters cannot be physically damaged in a short time due to a firewall interval between the battery bin and the electric bin. In addition, the vacant positions in the battery clusters can be used for placing battery modules, and the battery capacity of the battery clusters is increased under the same size.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application and that other drawings may be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a conventional container-type energy storage system according to an exemplary embodiment of the present application;
FIG. 2 is a schematic diagram of a conventional battery cluster configuration in a conventional container-type energy storage system according to an exemplary embodiment of the present application;
FIG. 3 is a schematic diagram of a plurality of conventional battery clusters arranged in a conventional container-type energy storage system according to an exemplary embodiment of the present application;
FIG. 4 is a schematic diagram of a container-type energy storage system according to an exemplary embodiment of the present application;
FIG. 5 is a schematic diagram of a cluster of cells in a container-type energy storage system according to an exemplary embodiment of the present application;
FIG. 6 is a schematic diagram of a plurality of battery clusters arranged in a container-type energy storage system according to an exemplary embodiment of the present application;
fig. 7 is a schematic structural view of a container-type energy storage system according to another exemplary embodiment of the present application;
Fig. 8 is a schematic view of an integrated high-voltage tank in a container-type energy storage system according to an exemplary embodiment of the present application.
Reference numerals:
1: a conventional battery cluster;
2: a battery module;
3: a high pressure tank;
4: a battery cluster;
5: and integrating the high-pressure tank structure.
Detailed Description
With the development of society and the improvement of living standard of people, energy storage systems have been greatly developed. The energy storage system provides electrical energy to the user. Currently, energy storage systems include a plurality of battery clusters, a high voltage tank connected to each battery cluster, and a control structure. Wherein the battery cluster and the high-voltage box are arranged together.
However, at present, such energy storage systems have at least the following problems: because the battery cluster and the high-voltage box are arranged together, if the control part of the high-voltage box fails, physical damage can be directly caused to the battery cluster, and the whole energy storage system is caused to fail, so that electric energy cannot be normally provided for a user.
In order to solve the technical problems, the scheme provided by the application comprises a container type energy storage system, wherein all high-voltage boxes which are originally and independently placed in a battery cluster are taken out and are intensively placed in an integrated high-voltage box structure, and the integrated high-voltage box structure and a control unit are placed in an electric bin. The integrated high-voltage box structure and the control unit are closer in distance, and the communication wire harness and the power wire harness can avoid flat traveling wires and are shorter in distance, so that the interference to the communication wire harness is small. If the high-voltage box fails, the battery clusters cannot be physically damaged in a short time due to a firewall interval between the battery bin and the electric bin. In addition, the vacant positions in the battery clusters can be used for placing battery modules, and the battery capacity of the battery clusters is increased under the same size.
Fig. 1 is a schematic structural view of a conventional container-type energy storage system according to an exemplary embodiment of the present application.
As shown in fig. 1, the energy storage system includes a plurality of conventional battery clusters 1, a high voltage tank 3 connected to each conventional battery cluster 1, and a control structure. Wherein a high-voltage tank 3 connected to each conventional battery cluster 1 is provided in each conventional battery cluster 1. The control structure comprises a control cabinet and a plurality of converging control units. The convergence control unit may be an energy storage converter (Power Conversion System, PCS) with a convergence cabinet function, or may be a convergence cabinet.
As shown in fig. 1, the left half of fig. 1 is a battery compartment, and the right half is an electrical compartment. A firewall interval is arranged between the battery compartment and the electric compartment. The battery compartment comprises a plurality of conventional battery clusters 1 and an air conditioner for adjusting the temperature, wherein the conventional battery clusters 1 are composed of a plurality of battery modules 2 and a high-voltage box 3. The electrical cabinet includes a control cabinet and at least one PCS or busway cabinet. Wherein, the structure schematic diagram of the conventional battery cluster 1 is shown in fig. 2; a schematic of the arrangement of a plurality of conventional battery clusters 1 is shown in fig. 3.
In the above energy storage system, the high voltage tank 3 is within the conventional battery cluster 1, but the high voltage tank 3 contains an electrical control unit, and thus the battery and the electrical control section are not completely separated. Because there is communication pencil to be connected between high-voltage tank 3 and the switch board in the conventional battery cluster 1, there is power pencil to be connected between high-voltage tank 3 and PCS/conflux cabinet, and unavoidable power pencil and communication pencil need the parallel line of going on, and the heavy current can produce the interference to the communication, and communication pencil is also longer in addition, also can influence signal transmission. On the other hand, the high-voltage box 3 contains an electrical control part, in the limit case, the electrical component may explode, the upper part of the high-voltage box 3 is the battery module 2, once the high-voltage box 3 is on fire, the battery module 2 inevitably needs to be on fire, and the physical damage to the conventional battery cluster 1 can be directly caused, so that the whole energy storage system fails, and thus, the electric energy cannot be normally provided for users.
Fig. 4 is a schematic structural view of a container-type energy storage system according to an exemplary embodiment of the present application.
As shown in fig. 4, the energy storage system includes:
A plurality of battery clusters 4, and an energy storage control structure; the energy storage control structure comprises an integrated high-voltage tank structure 5 and a control unit.
Wherein each battery cluster 4 comprises a plurality of battery modules 2 connected in series, and the integrated high-voltage box structure 5 comprises a high-voltage box 3 correspondingly connected with each battery cluster 4; the integrated high-pressure tank structure 5 is connected with a control unit.
And the high-voltage box 3 is correspondingly connected with each battery cluster 4 and is used for receiving the user information fed back by the control unit and controlling the operation of the battery clusters 4 according to the user information.
And the control unit is used for acquiring the battery information acquired by each high-voltage box 3 and the high-voltage box 3 information of each high-voltage box 3, and controlling the operation of the user side equipment according to the battery information and the high-voltage box 3 information.
Specifically, the container type energy storage system provided in this embodiment includes a plurality of battery clusters 4 and an energy storage control structure, where the energy storage control structure includes an integrated high-voltage tank structure 5 and a control unit.
Wherein a plurality of battery clusters 4 are connected in parallel, and each battery cluster 4 comprises a plurality of battery modules 2 connected in series. The number of the battery clusters 4 is the same as that of the high-voltage boxes 3, and each battery cluster 4 is connected with each high-voltage box 3 in a one-to-one correspondence manner. The high-pressure tanks 3 are integrated together to form an integrated high-pressure tank structure 5.
Specifically, the integrated high-pressure tank structure 5 is connected with a control unit. Each high-voltage tank 3 in the integrated high-voltage tank structure 5 is connected with the control unit through a communication harness and a control harness in the low-voltage harness. The communication harness CAN comprise a CAN wire, an Ethernet wire and an RS-485 wire. Other ones of the low voltage harnesses than the communication harness are collectively referred to as the control harness.
Specifically, the control unit may be connected to the user side, and acquire user information on the user side. The user side can be, for example, a lighting lamp, an air conditioner, a fan and the like on a container powered by the energy storage system. The control unit can control the service condition of the user-side electric equipment. The user information on the user side can include, for example, on-off conditions, brightness conditions, etc. of the illumination lamps on the container powered by the energy storage system. Specifically, the user information of the user side may include all power consumption condition information of the electric equipment powered by the energy storage system. Specifically, the control unit may acquire user information from the user side and feed back the user information to the high-pressure tank 3.
Specifically, the high voltage tank 3 may receive the user information sent from the control unit, and the high voltage tank 3 may control the operation of the battery cluster 4 connected thereto according to the received user information, wherein controlling the operation of the battery cluster 4 includes controlling the charge and discharge of the battery cluster 4.
Specifically, each high-voltage tank 3 and each battery cluster 4 may be connected by a communication harness among the high-voltage harness and the low-voltage harness. Wherein a high voltage harness may be used to transfer electrical energy from each battery cluster 4 to its corresponding high voltage tank 3. The communication harness in the low-voltage harness can be used for transmitting information between each battery cluster 4 and the corresponding high-voltage box 3, for example, each battery cluster 4 can transmit the battery information in the battery cluster 4 to the corresponding high-voltage box 3 through the communication harness. Each high-voltage tank 3 can acquire battery information transmitted from each battery cluster 4.
Specifically, each high-voltage box 3 may transmit the collected battery information and the high-voltage box 3 information of each high-voltage box 3 to the control unit through the communication harness, and the control unit may obtain the battery information collected by each high-voltage box 3 and the high-voltage box information of each high-voltage box 3. Further, the control unit may control the operation of the user-side device by controlling the internal contactor or switch of each high-voltage tank 3 according to the acquired battery information and the information of each high-voltage tank 3.
Specifically, in fig. 4, the left half part is a battery compartment, and the right half part is an electrical compartment. A firewall interval is arranged between the battery compartment and the electric compartment. The battery compartment includes a plurality of battery clusters 4 and an air conditioner for adjusting temperature. The electrical compartment comprises an integrated high voltage tank structure 5, and a control unit. Wherein, the structure schematic diagram of the battery cluster 4 is shown in fig. 5; a schematic of the arrangement of the plurality of battery clusters 4 is shown in fig. 6.
The application provides a container type energy storage system, which comprises: a plurality of battery clusters 4, and an energy storage control structure; the energy storage control structure comprises an integrated high-voltage box structure 5 and a control unit; wherein each battery cluster 4 comprises a plurality of battery modules 2 connected in series, and the integrated high-voltage box structure 5 comprises a high-voltage box 3 correspondingly connected with each battery cluster 4; the integrated high-pressure tank structure 5 is connected with the control unit; the high-voltage box 3 is correspondingly connected with each battery cluster 4 and is used for receiving the user information fed back by the control unit and controlling the operation of the battery clusters 4 according to the user information; and the control unit is used for acquiring the battery information acquired by each high-voltage box 3 and the high-voltage box information of each high-voltage box 3, and controlling the operation of the user side equipment according to the battery information and the high-voltage box information. According to the container type energy storage system provided by the application, each high-voltage tank 3 is taken out of each battery cluster 4 and integrated into the integrated high-voltage tank structure 5, and the integrated high-voltage tank structure 5 and other energy storage control structures are placed together. The integrated high-voltage box structure 5 and the control unit are closer in distance, and the communication wire harness and the power wire harness can avoid flat traveling wires and are shorter in distance, so that the interference to the communication wire harness is small. In the limit case, if the electrical components contained in the high-voltage box 3 explode, the explosion fires in the electrical bin, the ignition of the battery can be avoided in a short time, the time for fire fighting is reserved, and the battery part can be stored for continuous use. In addition, the hollow position of the battery cluster 4 can be used for placing the battery module 2, and the battery capacity of the battery cluster 4 is increased under the same size.
Fig. 7 is a schematic structural view of a container-type energy storage system according to another exemplary embodiment of the present application.
As shown in fig. 7, in the energy storage system, the integrated high-voltage tank structure 5 further includes a housing structure; each high-pressure tank 3 is arranged in the housing structure; the high-pressure tanks 3 are arranged in a plurality of rows in the housing structure.
Specifically, the high-pressure tanks 3 are placed together to form an integrated high-pressure tank structure 5. The outside of the integrated high-pressure tank structure 5 is provided with a shell structure. Wherein the housing structure may for example be a metal housing. The high-pressure tanks 3 may be arranged in a plurality of rows in the housing structure, and the specific arrangement of the high-pressure tanks 3 is not limited in this embodiment.
In one example, the integrated high pressure tank structure 5 is provided with a first integrated interface; the first integrated interface comprises a first interface corresponding to each battery cluster 4; each battery cluster 4 and the corresponding high-voltage box 3 of each battery cluster 4 are connected through a first interface.
The first interface refers to an interface that each battery cluster 4 is connected to the high-voltage box 3 corresponding to each battery cluster 4. More than one first interface may be provided, and the first interfaces are integrated together to form a first integrated interface.
The integrated high-pressure tank structure 5 is provided with a second integrated interface; the second integrated interface comprises a plurality of second interfaces; the substructures in the control unit are connected with the respective high-pressure tanks 3 via corresponding second interfaces.
Specifically, the control unit may include various sub-structures, and each high-pressure tank 3 in the integrated high-pressure tank 3 is connected with each sub-structure of the control unit through each second interface. The second integrated interface comprises a plurality of second interfaces, and the second interfaces are integrated together to form the second integrated interface.
For example, a first integrated interface may be provided on one side of the integrated high-pressure tank 3 and a second integrated interface may be provided on the other side of the integrated high-pressure tank 3.
A schematic of the integrated high pressure tank structure 5 is shown in fig. 8.
In one example, a control unit includes: a control cabinet and at least one confluence control unit; the integrated high-pressure box structure 5 is connected with the control cabinet; the control cabinet is connected with each converging control unit; integrating the high-pressure tanks 3 in the high-pressure tank structure 5 to form a plurality of groups of high-pressure tanks 3; each high-pressure tank 3 group comprises at least one high-pressure tank 3; each converging control unit and the high-pressure box 3 group corresponding to the converging control unit are correspondingly connected.
And the control cabinet is used for acquiring the battery information acquired by each high-voltage box 3 and the high-voltage box 3 information of each high-voltage box 3, and controlling the operation of the user side equipment according to the battery information and the high-voltage box 3 information.
Each confluence control unit is used for carrying out confluence processing on each battery cluster 4 under the high-voltage box 3 group corresponding to the confluence control unit to obtain battery confluence information; and carrying out power supply processing for the user side equipment according to the battery confluence information.
In particular, the control unit may comprise sub-structures, wherein each sub-structure may comprise one control cabinet and at least one confluence control unit.
Wherein, integrated high-pressure tank structure 5 is connected with the switch board, and specifically, each high-pressure tank 3 in the integrated high-pressure tank structure 5 is connected with the switch board through communication pencil and the control pencil in the low pressure pencil, and specifically, each high-pressure tank 3 in the integrated high-pressure tank structure 5 can be through each second interface connection in the second integrated interface that sets up on the integrated high-pressure tank structure 5 with the switch board.
The control cabinet is connected with each confluence control unit, and specifically, the control cabinet is connected with each confluence control unit through a communication wire harness and a control wire harness in the low-voltage wire harness.
Specifically, which of the plurality of battery clusters 4 is supplied with electric power by each of the bus control units is set in advance, and thus the number of bus control units is also set in advance.
Specifically, each high-pressure tank 3 in the integrated high-pressure tank structure 5 constitutes a plurality of high-pressure tank groups; each high-pressure tank group comprises at least one high-pressure tank 3; each converging control unit and the high-pressure box group corresponding to the converging control unit are correspondingly connected. And each high-voltage tank 3 is connected to a corresponding battery cluster 4. Each converging cabinet converges the electric energy of the battery cluster 4 correspondingly connected with the high-voltage box group connected with the converging cabinet.
Specifically, if there is more than one high-pressure tank 3 connected to each confluence control unit, these high-pressure tanks 3 may constitute a high-pressure tank group. Each converging control unit is correspondingly connected with the corresponding high-pressure box 3 groups of the converging control units. The high-pressure tanks 3 in the integrated high-pressure tank structure 5 may constitute a plurality of high-pressure tank groups, wherein each high-pressure tank group comprises at least one high-pressure tank 3.
The high-voltage boxes 3 in the integrated high-voltage box structure 5 can collect battery information transmitted by the battery clusters 4 correspondingly connected with the high-voltage boxes through communication wire harnesses in the low-voltage wire harnesses, and can include voltage and temperature information, and the high-voltage boxes 3 can also collect high-voltage box information of the high-voltage boxes and can include information such as total voltage, total current and electric device states. Each high-voltage box 3 can transmit battery information collected by each high-voltage box 3 and high-voltage box information of each high-voltage box 3 to the control cabinet through each second interface and a communication wire harness in the low-voltage wire harness. The control cabinet acquires battery information acquired by each high-voltage box 3 and high-voltage box information of each high-voltage box 3, and controls operation of electric equipment at a user side according to the battery information and the high-voltage box information.
Specifically, the control cabinet can control the operation of all user-side electric equipment powered by the energy storage equipment.
For example, the user side device may include an air conditioner, and the controller may control a switch of the air conditioner, a mode conversion, and the like.
Specifically, each confluence control unit is configured to perform confluence processing on the battery clusters 4 correspondingly connected to the high-voltage box groups correspondingly connected to the confluence control units, and obtain confluence information of the batteries. Specifically, the bus control unit is connected to the user-side device. And each confluence control unit performs power supply processing for the user side equipment according to the obtained battery confluence information.
In one example, each of the bus control units is further configured to perform charging processing on each of the battery clusters 4 under the high-voltage box group corresponding to the bus control unit according to battery bus information such as voltage, current, and the like.
Specifically, the confluence control unit may be further connected to a power grid, and the energy storage system may charge the battery through the power grid. Specifically, each of the confluence control units charges each of the battery clusters 4 under the high-voltage box 3 group correspondingly connected to the confluence control unit according to the obtained battery confluence information.
In one example, each of the bus control units is an energy storage converter having a bus cabinet function.
The converging cabinet is connected with the corresponding high-voltage box 3 groups, and converges electric energy in each battery cluster 4 connected with the high-voltage box 3 groups, the converged electric energy is supplied to the PCS, and the PCS supplies power or charges power to a user side or a power grid.
The energy storage converter (Power Conversion System, PCS) can control the charging and discharging processes of the battery to perform AC/DC conversion. The ac load can be directly supplied without a power grid. The PCS receives a control command sent by the control cabinet through the communication wire harness, and controls the PCS to charge or discharge the battery according to the sign and the size of the power command in the control command, so that the active power and the reactive power of the power grid are regulated.
Further, in one implementation, each of the current collection control units may be an energy storage current transformer, where the energy storage current transformer further has a function of a current collection cabinet.
Or in another implementation manner, each confluence control unit comprises a confluence cabinet and an energy storage converter which are connected with each other; the convergence cabinet in each convergence control unit is connected with the control cabinet; the bus cabinet in each bus control unit and the high-voltage box group corresponding to the bus control unit are correspondingly connected.
In one possible implementation, the high-voltage box structure 5, the control cabinet, and the convergence cabinets in the convergence control units are integrated and arranged in the first storage structure; the energy storage converters in the converging control units are arranged in the second storage structure.
Specifically, each confluence control unit comprises a confluence cabinet and an energy storage converter which are connected with each other. Wherein, the conflux cabinet in each conflux control unit is connected with the control cabinet; and the converging cabinets in each converging control unit are correspondingly connected with the high-voltage box groups corresponding to the converging control units.
Specifically, the PCS in each busbar control unit and the energy storage system are not placed in one storage structure body, i.e., the PCS can be externally arranged. Specifically, the high-voltage box structure 5, the control cabinet and the convergence cabinets in the convergence control units can be arranged in the first storage structure; the energy storage converters in the respective busbar control units may be arranged in the second storage structure.
In one example, each of the busbar control units is connected to the integrated high-voltage tank structure 5 by a high-voltage harness; each confluence control unit is connected with the control cabinet through a low-voltage wire harness, and the low-voltage wire harness comprises a communication wire harness and a control wire harness.
Specifically, each of the confluence control units is connected to each corresponding high-voltage tank 3 in the integrated high-voltage tank structure 5 through a high-voltage harness. Each confluence control unit is connected with the control cabinet through a low-voltage wire harness, wherein the low-voltage wire harness comprises a communication wire harness and a control wire harness.
Further, each high-voltage tank 3 in the integrated high-voltage tank structure 5 is connected with the corresponding each battery cluster 4 by a high-voltage harness and a communication harness. Each high-voltage tank 3 in the integrated high-voltage tank structure 5 is connected with the control cabinet through a communication harness and a control harness.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (9)

1. A container-type energy storage system, the energy storage system comprising:
A plurality of battery clusters, and an energy storage control structure; the energy storage control structure comprises an integrated high-voltage box structure and a control unit; the integrated high-voltage box structure and the control unit are arranged in an electric bin, and the battery bin and the electric bin are separated by a firewall;
each battery cluster comprises a plurality of battery modules connected in series, and the integrated high-voltage box structure comprises a high-voltage box correspondingly connected with each battery cluster; the integrated high-pressure tank structure is connected with the control unit;
The high-voltage boxes are correspondingly connected with each battery cluster and are used for receiving the user information fed back by the control unit and controlling the operation of the battery clusters according to the user information;
The control unit is used for acquiring battery information acquired by each high-voltage box and high-voltage box information of each high-voltage box, and controlling the operation of user side equipment according to the battery information and the high-voltage box information;
the control unit includes: a control cabinet and at least one confluence control unit;
The integrated high-voltage box structure is connected with the control cabinet; the control cabinet is connected with each converging control unit;
each high-pressure tank in the integrated high-pressure tank structure forms a plurality of high-pressure tank groups; each high-pressure tank group comprises at least one high-pressure tank; each converging control unit and the high-pressure box group corresponding to the converging control unit are correspondingly connected;
the control cabinet is used for acquiring battery information acquired by each high-voltage box and high-voltage box information of each high-voltage box, and controlling operation of user side equipment according to the battery information and the high-voltage box information;
Each confluence control unit is used for carrying out confluence processing on each battery cluster under the high-voltage box group corresponding to the confluence control unit to obtain confluence information of the batteries; and carrying out power supply processing for the user side equipment according to the battery confluence information.
2. The energy storage system of claim 1, wherein the integrated high pressure tank structure further comprises a housing structure; each of the high pressure tanks is disposed in the housing structure; each of the high pressure tanks is arranged in a plurality of rows in the housing structure.
3. The energy storage system of claim 2, wherein the integrated high pressure tank is structurally provided with a first integrated interface;
the first integrated interface comprises a first interface corresponding to each battery cluster; each battery cluster and the corresponding high-voltage box of each battery cluster are connected through a first interface.
4. The energy storage system of claim 2, wherein the integrated high pressure tank is structurally provided with a second integrated interface;
The second integrated interface comprises a plurality of second interfaces; the substructure in the control unit is connected with each high-pressure tank through a corresponding second interface.
5. The energy storage system of claim 1, wherein each of the confluence control units is further configured to perform charging processing on each of the battery clusters under the high voltage box group corresponding to the confluence control unit according to the battery confluence information.
6. The energy storage system of claim 1, wherein each of the current collection control units is an energy storage current transformer having a current collection cabinet function.
7. The energy storage system of claim 1, wherein each of said bus control units comprises a bus cabinet and an energy storage converter connected to each other; the convergence cabinets in each convergence control unit are connected with the control cabinet; and the converging cabinets in each converging control unit and the high-voltage box group corresponding to the converging control units are correspondingly connected.
8. The energy storage system of claim 7, wherein the integrated high-voltage tank structure, the control cabinet, and a convergence cabinet of each of the convergence control units are disposed in a first warehouse structure;
The energy storage converters in the converging control units are arranged in the second storage structure.
9. The energy storage system of claim 1, wherein each of said bussing control units is connected to said integrated high voltage tank structure by a high voltage harness;
Each converging control unit is connected with the control cabinet through a low-voltage wire harness, and the low-voltage wire harness comprises a communication wire harness and a control wire harness.
CN202111296076.XA 2021-11-03 2021-11-03 Container type energy storage system Active CN114243177B (en)

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