CN221262478U - Container type energy storage battery system - Google Patents

Abstract

The utility model relates to the technical field of container type energy storage systems, in particular to a container type energy storage battery system. A container type energy storage battery system comprises a container and a rack. A plurality of racks are arranged in the container, and each rack comprises a plurality of battery racks connected side by side. The battery rack is provided with a plurality of battery modules and detection and control devices, each detection and control device is electrically connected with one battery module to form a battery module unit, a plurality of battery module units are connected into a battery pack string, and a plurality of battery pack strings are connected into a battery system. A container type energy storage battery system has the advantages that complicated circuits are regulated, wiring errors are not easy to occur, and the influence of faults of one of a group of battery modules on the whole group of battery modules and even the operation of the whole system is avoided.

Description

Container type energy storage battery system

Technical Field

The utility model relates to the technical field of container type energy storage systems, in particular to a container type energy storage battery system.

Background

With the increasing exhaustion of natural energy, at the same time, the natural energy source greatly damages the living environment of people, and brings harm to the physical health of people, and new energy sources have been widely used. Electric energy storage systems have now become a major new source of energy. Typically, electrical energy storage systems can be built from cabinet-type small energy storage systems to container-type large energy storage systems, depending on the energy requirements of the equipment being powered. In large energy storage systems of the container type, tens or even hundreds of battery modules need to be arranged in each container.

The workload is very large during installation, the circuit is complex, and wiring errors, circuit confusion and the like are easily caused. In the operation process of the container type energy storage system, because of unavoidable differences of battery monomers, the service lives of the battery modules are different, the charge states are different, and moreover, one battery module is abnormal, the circuit of a group of batteries connected in series and parallel with the battery module is broken, and the operation of the whole energy storage system is influenced. For example, chinese patent publication No. CN105151567a discloses an energy storage battery container suitable for wind storage systems. It comprises: a case body including a case top, a pair of side plates, a bottom frame, and a pair of end doors connected to each other; the box body is provided with a grounding system outside, the underframe is of a channel steel structure, a plurality of upright posts are respectively arranged outside each side plate, and the box top is of a double-layer design; the inner space of the box body is an energy storage battery equipment chamber for placing energy storage battery equipment. The container energy storage system of the patent has the problems that the circuit is complex, wiring errors, messy circuits and the like are easy to occur, and the charge state of the battery can be detected in the long-time power-off process, so that the charge state of each battery module cannot be known in the operation process of the energy storage system, and when one of a group of battery modules connected together in series-parallel fails, the whole group of battery modules, even the operation of the whole system, is affected.

Disclosure of utility model

In view of this, the present utility model aims to provide a container type energy storage battery system, a plurality of battery racks are disposed in a container, a plurality of battery modules are disposed on each battery rack, each battery module is connected with a detection device to form a battery module unit, each battery module unit forms a group of battery strings through serial-parallel connection, the connection between each battery module unit and each battery module unit is realized through a wire row disposed on a rack column, each group of battery strings is connected with a wire row disposed on the rack, the wire rows between the racks are connected with each other, each row of wire row is connected with an input port of a hub disposed on a management rack, a plurality of hubs are connected with an energy exchanger, the energy exchanger and a cloud platform realize data transmission through a wireless network, and the problems of complex circuit, easy occurrence of wiring errors, messy circuit and the like are solved, the state of charge of the battery must be detected in the process of power failure of long time, therefore, the state of charge of each battery module cannot be known in the operation of the energy storage system, and when one of the group of battery modules connected together through serial-parallel connection fails, the operation of the whole group of battery modules will be affected, even the whole system is in operation.

In order to solve the above problems, the present utility model provides a container type energy storage battery system, comprising:

A container;

the container comprises a plurality of racks, wherein the racks comprise a plurality of battery racks which are connected side by side, the battery racks are formed by fixing a plurality of partition boards among four upright posts, the partition boards are separated by n heights of 1U in the up-down direction, and n is an integer greater than or equal to 1;

Forming a battery cell between the upper and lower separators, and arranging a battery module in each battery cell;

A plurality of detection and control devices are arranged on the battery rack, each detection and control device is electrically connected with one battery module to form a battery module unit, the detection and control device is used for dispersing the analog energy flow of the battery module into digital energy flow, the battery module units are connected into a battery pack string through at least one of series connection and parallel connection, and the battery pack strings are connected into a battery system through at least one of series connection and parallel connection;

and a wire row is arranged on the side wall plate of the upright post and the partition plate, the inspection device, the battery module and a plurality of battery module units are connected through the wire row, and a first group of serial electrodes and a second group of serial electrodes of the battery string are formed.

Further, a plurality of frame battery wiring rows are arranged on each battery frame, the battery frame wiring rows of two adjacent battery frames are correspondingly arranged, and the two corresponding battery frame wiring rows are mutually connected;

the first group of serial electrodes and the second group of serial electrodes are connected with one battery rack wiring row.

Further, the battery rack wiring row comprises a first electrode wiring row and a second electrode wiring row, the first group of serial electrodes are electrically connected with the first electrode wiring row, and the second group of serial electrodes are electrically connected with the second electrode wiring row;

and battery rack terminals are formed at two ends of the battery rack wiring row, and the two battery rack terminals are respectively connected with the battery rack terminals of the adjacent battery racks.

Further, the detection control device comprises a detection unit and a control unit, wherein the detection unit receives voltage information and temperature information of the battery module;

The control unit comprises a main loop controller and a bypass controller, wherein the first end of the main loop controller is connected with the second end of the battery module in series through the first terminal of the detection control device, the first end of the bypass controller is connected with the first end of the battery module in parallel through the second terminal of the detection control device, and the second end of the main loop controller is connected with the second end of the bypass controller in parallel through the third terminal of the detection control device.

Further, the frame further includes:

the management rack is provided with a plurality of line concentration devices, a plurality of line concentration input ports are arranged on the line concentration devices, and each line connection row of the battery rack adjacent to the management rack is connected with one line concentration input port.

Further, a current detecting unit connected with the line concentration input port is arranged in the line concentration device.

Furthermore, an energy exchanger is further arranged on the management rack, a plurality of exchanger transfer interfaces are arranged on the energy exchanger, a line concentration transfer interface is arranged on each line concentration device, and the line concentration transfer interfaces are connected with one exchanger transfer interface.

Further, a plurality of management rack wiring rows are arranged on the management rack, one end of each management rack wiring row is provided with a management rack terminal, and the management rack terminal is connected with one battery rack terminal of the adjacent battery rack;

the other end of the management rack wiring row of the management rack, which is opposite to the management rack terminal, is provided with an input terminal, and the input terminal is connected with the line concentration input port.

Further, the container type energy storage battery system further comprises:

and the energy exchanger and the cloud platform are used for carrying out data transmission through a wireless network.

Further, the container type energy storage battery system further comprises:

The cooling and radiating device comprises an air conditioner and an exhaust fan, wherein an air outlet of the air conditioner is arranged in the container, the air outlet is connected with the rack through an airflow channel, and the exhaust fan is arranged at an air outlet of the container;

the fire-fighting device is provided with an injection port in the container, and the fire-fighting device sprays fire extinguishing agent through the injection port;

a control device comprising a controller and a sensor, the sensor comprising a temperature sensor and a smoke sensor;

the temperature sensor is used for receiving the environmental temperature information in the container, and the controller is used for adjusting the cooling and heat dissipation device according to the environmental temperature information;

And the smoke sensor is used for receiving smoke concentration information in the container, and the controller is used for controlling the fire-fighting device to spray the fire extinguishing agent according to the environmental temperature information and the smoke concentration information.

Compared with the prior art, the container type energy storage battery system provided by the utility model has the following advantages:

The technical scheme has the advantages that the battery frames are arranged in the container, the battery modules are arranged on each battery frame, each battery module is connected with the detection device to form a battery module unit, the detection of the battery state of each battery module can be realized through the detection device, the charge state of each battery module is obtained according to the detection result, and the on-off of each battery module is realized through the detection device according to the instruction. Each battery module unit forms a group of battery group strings through series-parallel connection, the connection between each battery group string is realized through the wire row arranged on the stand column of the stand, each group of battery group string is connected with the wire row arranged on the stand, the wire rows between the stand are mutually connected, each row of wire row is connected to one input port of the hub arranged on the management stand, a plurality of hubs are connected to the energy exchanger, the energy exchanger and the cloud platform realize data transmission through a wireless network, complicated circuits are regulated, wiring errors are not easy to occur, in the operation process of the energy storage system, the millisecond-level, even microsecond-level on-off switching of each battery module can be realized through the detection and control device, the charge state of each battery module is known, and the battery module reconstruction of the whole group of battery group string is realized. The influence of the failure of one of the battery modules on the whole battery module and even the operation of the whole system is avoided.

Drawings

Fig. 1 is a perspective view of a container-type energy storage battery system according to an embodiment of the present utility model;

FIG. 2 is a front view of a frame according to an embodiment of the present utility model;

FIG. 3 is a front view of a battery rack according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of section A of the battery rack according to an embodiment of the present utility model;

FIG. 5 is a front view of a battery rack according to an embodiment of the present utility model;

fig. 6 is a block diagram of a container type energy storage battery system according to an embodiment of the present utility model;

Fig. 7 is a circuit diagram of a battery module unit according to an embodiment of the present utility model.

Reference numerals illustrate:

100-container, 200-rack, 210-battery rack, 211-column, 212-baffle, 213-battery rack wiring row, 2131-battery rack terminal, 220-management rack, 221-line concentrator, 2211-line concentrator, 2212-line concentrator, 222-energy switch, 2221-switch adapter, 223-management rack wiring row, 300-battery module unit, 310-battery module, 320-inspection device, 321-main loop controller, 322-bypass controller, 330-wire row, 400-cooling heat sink, 500-fire device, 600-cloud platform, 700-powered equipment.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

The description of "first," "second," "upper," "lower," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or the number of technical features indicated. Thus, a feature defining "first", "second", "upper", "lower" may include at least one such feature, either explicitly or implicitly. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the combination between the embodiments, and all the technical solutions are within the scope of protection claimed by the present utility model.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 and 2, a container type energy storage battery system includes: a container 100 and a rack 200. A plurality of racks 200 are provided in the container 100, the racks 200 include a plurality of battery racks 210 connected side by side, and as shown in fig. 3, the battery racks 210 are configured by fixing a plurality of partitions 212 between four columns 211, the partitions 212 are vertically spaced by n heights of 1U, and n is an integer of 1 or more. A battery cell is formed between the upper and lower separators 212, and a battery module 310 is disposed in each of the battery cells. The battery rack 210 is provided with a plurality of detection and control devices 320, each detection and control device 320 is electrically connected with one battery module 310 to form one battery module unit 300, the detection and control devices 320 are used for dispersing the analog energy flow of the battery module 310 into digital energy flow, the battery module units 300 are connected into a battery pack string through at least one of series connection and parallel connection, and the battery pack strings are connected into a battery system through at least one of series connection and parallel connection.

A lead wire row 330 is provided on the side wall plates of the column 211 and the separator 212, and the inspection device 320 and the battery module 310, and the plurality of battery module units 300 are connected by the lead wire row 330, and form a first group of string electrodes and a second group of string electrodes of one battery string.

In the container type energy storage battery system having the above-described structure, a plurality of racks 200 are provided in the container 100, the racks 200 include a plurality of battery racks 210 connected side by side, one battery module 310 is placed in each unit cell of the battery racks 210, the battery modules 310 are connected in series-parallel, in this embodiment, the battery modules 310 are preferably connected in series, and all the battery modules 310 connected in series of each battery rack form one battery string. In order to be able to detect the state of charge of each battery module 310 during operation of the energy storage system, in this example, a detection and control device 320 is configured for each battery module 310. The analog energy flow of the battery module 310 can be dispersed into a digital energy flow by the detection and control device 320, that is, the detection and control device 320 can realize the switching of the main loop connection and the bypass connection of the millisecond level, even microsecond level, for the battery module 310, when the detection and control device 320 controls the battery module 310 connected with the detection and control device to switch to the bypass connection, the detection and control device 320 can detect the voltage information and the temperature information of the battery module 310, thereby obtaining the result of the charge state of the battery module 310. The switching of the main circuit connection and the bypass connection of the battery module 310 is controlled by the sensing device 320 according to the state of charge. For example, in the charging process, if the electric quantity of one battery module 310 is higher than that of other battery modules 310, the battery module 310 is connected in a bypass manner through the detection and control device 320, and the battery module 310 is connected with the main circuit until the electric quantity of the other battery modules 310 is the same. In the discharging process, when the electric quantity of one battery module 310 is lower than that of other battery modules 310, the battery modules are connected in a bypass mode. So that the battery modules 310 in the battery string as a whole are balanced.

Through the energy storage battery system with the structure, in the operation process of the energy storage system, the on-off switching of millisecond level and even microsecond level of the battery modules can be realized through the detection and control device, the charge state of each battery module is obtained, and the battery module reconstruction of the whole battery pack string is realized. The influence of the failure of one of the battery modules on the whole battery module and even the operation of the whole system is avoided.

Further, as shown in fig. 3 and 4, a plurality of battery rack wiring lines 213 are provided on each of the battery racks 210, the battery rack wiring lines 213 of two adjacent battery racks 210 are provided correspondingly, and the two corresponding battery rack wiring lines 213 are connected to each other. The first set of serial electrodes and the second set of serial electrodes are connected to one of the rack wire rows 213.

The connection of battery strings between two adjacent battery racks 210 is connected by a battery rack wiring row 213. By arranging the battery rack wiring rows 213, the circuit connection is regular, and accidents such as electric fire and the like caused by wiring errors due to disorder of the circuit are avoided.

Further, the battery rack wiring row 213 includes a first electrode wiring row and a second electrode wiring row, the first set of serial electrodes are electrically connected with the first electrode wiring row, and the second set of serial electrodes are electrically connected with the second electrode wiring row. Battery rack terminals 2131 are formed at both ends of the battery rack wiring line 213, and two of the battery rack terminals 2131 are connected to the battery rack terminals 2131 of the adjacent battery racks 210, respectively.

Specifically, a plurality of wiring grooves or wiring boxes are provided in parallel on the side walls of the partition 212 of the battery rack 210, the cables are placed in the wiring grooves or wiring boxes, and the battery rack terminals 2131 are connected to the two ends of the wiring grooves or wiring boxes. As an embodiment, the battery rack terminals 2131 at both ends of the battery rack wiring row 213 are plug-in type, one terminal is a male head, and the other terminal is a female head.

Further, as shown in fig. 6 and 7, the detection and control device 320 includes a detection unit and a control unit, wherein the detection unit receives the voltage information and the temperature information of the battery module. The control unit includes a main loop controller 321 and a bypass controller 322, where a first end of the main loop controller 321 is connected in series with a second end of the battery module 310 through a first terminal of the detection control device, a first end of the bypass controller 322 is connected in parallel with a first end of the battery module 310 through a second terminal of the detection control device 320, and a second end of the main loop controller 321 is connected in parallel with a second end of the bypass controller 322 through a third terminal of the detection control device 320.

The control unit performs switching of the main circuit connection and the bypass connection of the battery module 310 through the main circuit controller 321 and the bypass controller 322 according to the voltage information and the temperature information received by the detection unit. Preferably, the main loop controller and the bypass controller employ MOSFET tubes.

Further, as shown in fig. 5, the rack 200 further includes: the management rack 220 is provided with a plurality of line concentration devices 221, a plurality of line concentration input ports 2211 are arranged on the line concentration devices 221, and each battery rack wiring row 213 of the battery racks 210 adjacent to the management rack 220 is connected with one line concentration input port 2211.

The battery rack wiring rows 213 of the battery racks 210 are connected to each other through the battery rack terminals 2131 to form rack wiring lines, each of which is connected to one of the line concentration input ports 2211 of the line concentration device 221, so that all battery strings are connected to the line concentration device 221. The hub 221 is divided into 4-port, 8-port, 16-port and 32-port hub 221 according to the number of hub input ports 2211. A plurality of hub devices 221 may be provided on the management rack 220 so that all battery strings are connected to the hub devices 221.

Further, a current detecting unit connected to the hub input port 2211 is provided in the hub device 221.

Each battery module 310 in the battery string formed by the series connection of the battery module units detects the voltage information and the temperature information through the detection control device 320, and current information is also required to obtain the state of charge of the battery module 310, and the current information of the battery string formed by the series connection can be obtained through the current detection unit arranged in the line concentration device 221.

Further, an energy switch 222 is further disposed on the management rack 220, a plurality of switch interfaces 2221 are disposed on the energy switch 222, a hub adapter 2212 is disposed on each hub device 221, and the hub adapter 2212 is connected to one of the switch interfaces 2221.

The plurality of hubs are connected to the energy switch 222 through the connections described above.

Further, a plurality of management rack wiring rows 223 are provided on the management rack 220, and one end of each management rack wiring row 223 is provided with a management rack terminal, and is connected with one of the battery rack terminals of the adjacent battery racks 210 through the management rack terminal. The other end of the management rack wiring row 223 of the management rack 220 opposite to the management rack terminal is provided with an input terminal, and the input terminal is connected with the line concentration input port 2211.

As with the battery rack 210, a plurality of wiring slots or boxes are provided in the side wall plates of the posts and separators of the management rack 220, and the wiring slots and boxes receive cables to form management rack wiring rows 223. The wiring of the rack 220 is managed regularly.

Further, as shown in fig. 6, the container type energy storage battery system further includes: and the cloud platform 600 performs data transmission between the energy switch 222 and the cloud platform 600 through a wireless network.

Each battery string is connected to the line concentrator 221, and voltage information, temperature information, and current information of each battery module 310 are detected by the detection unit of the detection device 320 and the line concentrator 221 and transmitted to the cloud platform 600 through the energy exchanger 222. The state of charge of each battery module 310 is calculated and obtained at the cloud platform 600 according to the voltage information, the temperature information and the current information, and compared with the states of charge of other battery modules, a control command is sent according to the comparison result, and the control command is sent to the control unit of the detection and control device 320 through the energy switch 222 and the line concentration device 221, so as to control the battery modules 310 to switch between the main loop connection and the bypass connection. The container type energy storage system constructed as described above supplies power to the powered device 700.

Further, as shown in fig. 1, the container type energy storage battery system further includes: cooling heat sink 400 and fire protection device 500. The cooling and heat dissipating device 400 comprises an air conditioner and an exhaust fan, wherein an air outlet of the air conditioner is arranged in the container 100, and the air outlet is connected with the rack 200 through an airflow channel, and the exhaust fan is arranged at an air outlet of the container 100. The fire-fighting device 500 is provided with an injection port in the container 100, and the fire-fighting device 500 sprays fire extinguishing agent through the injection port. A control device comprising a controller and a sensor, the sensor comprising a temperature sensor and a smoke sensor. The temperature sensor receives the information of the ambient temperature in the container 100, and the controller adjusts the cooling and heat dissipating device according to the information of the ambient temperature. The smoke sensor receives the smoke concentration information in the container 100, and the controller controls the fire-fighting device 500 to spray the fire extinguishing agent according to the environmental temperature information and the smoke concentration information.

Although the present utility model is disclosed above, the present utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and the scope of the utility model should be assessed accordingly to that of the appended claims.

Claims (10)

1. A container-type energy storage battery system, comprising:

A container (100);

a plurality of racks (200) are arranged in the container (100), the racks (200) comprise a plurality of battery racks (210) connected side by side, the battery racks (210) are formed by fixing a plurality of partition boards (212) between four upright posts (211), the partition boards (212) are separated by n heights of 1U in the up-down direction, and n is an integer greater than or equal to 1;

Forming a battery cell between the upper and lower separators (212), and disposing a battery module (310) in each of the battery cells;

A plurality of detection and control devices (320) are arranged on the battery rack (210), each detection and control device (320) is electrically connected with one battery module (310) to form one battery module unit (300), the detection and control devices (320) are used for dispersing the analog energy flow of the battery module (310) into digital energy flow, the battery module units (300) are connected into a battery pack string through at least one of series connection and parallel connection, and the battery pack strings are connected into a battery system through at least one of series connection and parallel connection;

A wire row (330) is provided on the side wall plates of the upright post (211) and the separator (212), and the inspection device (320) and the battery module (310), and the plurality of battery module units (300) are connected by the wire row (330), and form a first group of serial electrodes and a second group of serial electrodes of the battery string.

2. The container-type energy storage battery system according to claim 1, wherein,

A plurality of battery rack wiring rows (213) are arranged on each battery rack (210), the battery rack wiring rows (213) of two adjacent battery racks (210) are correspondingly arranged, and the two corresponding battery rack wiring rows (213) are connected with each other;

the first set of string electrodes and the second set of string electrodes are connected to one of the battery rack wiring rows (213).

3. The container-type energy storage battery system according to claim 2, wherein,

The battery rack wiring row (213) comprises a first electrode wiring row and a second electrode wiring row, the first group of serial electrodes are electrically connected with the first electrode wiring row, and the second group of serial electrodes are electrically connected with the second electrode wiring row;

Battery frame terminals (2131) are formed at both ends of the battery frame connection row (213), and two battery frame terminals (2131) are connected to the battery frame terminals (2131) of the adjacent battery frames (210), respectively.

4. The container-type energy storage battery system according to claim 3, wherein,

The detection control device (320) comprises a detection unit and a control unit, wherein the detection unit receives voltage information and temperature information of the battery module;

The control unit comprises a main loop controller (321) and a bypass controller (322), wherein the first end of the main loop controller (321) is connected with the second end of the battery module in series through the first terminal of the detection control device, the first end of the bypass controller (322) is connected with the first end of the battery module in parallel through the second terminal of the detection control device (320), and the second end of the main loop controller (321) is connected with the second end of the bypass controller in parallel through the third terminal of the detection control device.

5. The container-type energy storage battery system according to claim 4, wherein the rack (200) further comprises:

The management rack (220) is provided with a plurality of line concentration devices (221), a plurality of line concentration input ports (2211) are arranged on the line concentration devices (221), and each line connection row (213) of the battery rack (210) adjacent to the management rack (220) is connected with one line concentration input port (2211).

6. The container-type energy storage battery system according to claim 5, wherein,

A current detection unit connected to the hub input port (2211) is provided in the hub device (221).

7. The container-type energy storage battery system according to claim 5, wherein,

The management rack (220) is also provided with an energy switch (222), the energy switch (222) is provided with a plurality of switch interfaces (2221), each line concentration device (221) is provided with a line concentration interface (2212), and the line concentration interfaces (2212) are connected with one switch interface (2221).

8. The container-type energy storage battery system of claim 7, wherein,

A plurality of management rack wiring rows (223) are arranged on the management rack (220), one end of each management rack wiring row (223) is provided with a management rack terminal, and the management rack terminal is connected with one battery rack terminal (2131) of the adjacent battery rack (210);

The other end of the management rack wiring row (223) of the management rack (220) opposite to the management rack terminal is provided with an input terminal, and the input terminal is connected with the line concentration input port (2211).

9. The container-type energy storage battery system of claim 8, further comprising:

And the energy exchanger (222) and the cloud platform (600) perform data transmission through a wireless network.

10. The container-type energy storage battery system according to claim 1, further comprising:

The cooling and radiating device (400) comprises an air conditioner and an exhaust fan, wherein an air outlet of the air conditioner is arranged in the container (100), the air outlet is connected with the rack (200) through an airflow channel, and the exhaust fan is arranged at an air outlet of the container (100);

A fire-fighting device (500) provided with an injection port in the container (100), wherein the fire-fighting device (500) sprays fire-extinguishing agent through the injection port;

a control device comprising a controller and a sensor, the sensor comprising a temperature sensor and a smoke sensor;

Receiving the environmental temperature information in the container (100) through the temperature sensor, and regulating the cooling and radiating device by the controller according to the environmental temperature information;

And the smoke sensor is used for receiving smoke concentration information in the container (100), and the controller is used for controlling the fire-fighting device to spray the fire extinguishing agent according to the environment temperature information and the smoke concentration information.