TWM508154U - Power grid level energy storage device - Google Patents

Description

Grid-level energy storage device

This creation is about an energy storage device, especially a grid-level energy storage cabinet with wireless intelligent sensing function.

According to the electric grid (electric grid), it is a power supply network for connecting the supply end and the customer end. Traditionally, it is composed of a power generation system, a transmission system and a power distribution system. The recently emerging smart grid (smart grid) focuses on how to use and distribute the electricity produced more efficiently. It applies information technology (IT) to the power system, allowing it to instantly observe and control the grid, and between power suppliers and consumers. Two-way communication optimizes the efficiency of the grid. It can also be used in conjunction with renewable energy power generation systems (such as solar power systems or wind power systems) to improve power utilization efficiency by providing immediate consumer power usage information. Necessary investment in electrical facilities and greenhouse gas emissions.

The Energy Storage System (ESS) is one of the key technologies related to the smart grid. The energy storage system balances the excess power generated by the power generation system during off-peak hours and uses the stored power during peak hours to achieve load balancing. To maintain the stability of the power supply of the renewable energy power generation system. Generally, the basic unit of the existing energy storage system is a battery formed by loading a predetermined number of battery modules (such as lead-acid batteries or lithium-iron batteries) on a carrier. A battery rack or an energy storage cabinet, in fact, a certain number of battery brackets can be combined to one In the case of container-sized ESS energy storage containers, even multiple ESS energy storage containers can be further combined to form an energy storage cabinet array. Thus, a megawatt (MW) grid-level energy storage system can be realized. Please refer to the first figure. Shown, a conventional battery carrier is shown comprising: a carriage assembly 13 having a frame 11 and a panel 12, a plurality of shelves 14, a predetermined number of battery modules 10 mounted on the shelf in the form of a stage 14 on.

The existing battery bracket or energy storage cabinet can only provide the work of placing the battery module 10 Yes, it is not closely integrated with information or communication equipment, and it is difficult to implement a complete intelligent monitoring function. At the same time, the sensing data of the battery module 10 is transmitted to the control end of the energy storage cabinet in a wired manner, resulting in a large number of signal lines. It is covered in the energy storage cabinet with limited space, which causes inconvenient wiring construction and subsequent maintenance difficulties, and has a negative impact on the heat dissipation effect and reliability of the system. Therefore, how to improve the above problems, that is, the creators of this case The technical difficulty of solving it lies.

In view of the existing battery brackets or energy storage cabinets for the power grid, the lack of good integration with information or communication equipment, and the use of wired communication between the energy storage cabinet and the battery module, resulting in a large number of complex and complex lines, resulting in The inconvenience in construction and maintenance and the reduction of heat dissipation performance, the purpose of this creation is to develop a grid-level energy storage cabinet with wireless intelligent sensing.

In order to achieve the above objective, the present invention provides a power grid-level energy storage device, comprising: an energy storage cabinet body, the energy storage cabinet body is provided with a shell body, and at least one side of the shell body is provided with a movable removable The side cover body is provided with a plurality of carriers arranged at an equal interval from top to bottom, and the carrier is respectively provided with a positioning block extending longitudinally or laterally; and an energy storage cabinet monitoring device is disposed on the shell In the body, the energy storage cabinet monitoring device is provided with a second microcontroller, a pair of internal wireless communication modules and an external communication module, and the second microcontroller separately and the warning The device, the internal wireless communication module and the external communication module are electrically connected.

With the above structure, the creation can be matched with the battery module with wireless sensing, and the setting of the signal transmission line can be omitted, thereby saving considerable wire cost, man-hours required for construction and maintenance, and improving The heat dissipation efficiency of the energy storage cabinet can further reduce the cost and improve the reliability of the system.

[Use]

10‧‧‧Battery module

11‧‧‧Frame

12‧‧‧ panel

13‧‧‧Bracket assembly

14‧‧‧Shelf

[this creation]

3‧‧‧ Energy storage cabinet body

31‧‧‧Shell body

32‧‧‧ side cover

321‧‧‧ vents

33‧‧‧Baffle

331‧‧‧Device accommodation space

332‧‧‧Battery pack accommodation space

34‧‧‧ Carrier

341‧‧‧ Positioning bracket

342‧‧‧deep area

35‧‧‧ Warning device

4‧‧‧Battery module

41‧‧‧ battery core

42‧‧‧Sensor module

421‧‧‧First microcontroller

422‧‧‧ sensor

423‧‧‧Wireless communication module

5‧‧‧ Energy storage cabinet monitoring device

51‧‧‧second microcontroller

52‧‧‧Internal wireless communication module

53‧‧‧External communication module

6‧‧‧Management control equipment

7‧‧‧Special battery

The first figure is a schematic view of the structure of a conventional battery holder.

The second picture is a schematic diagram of the structure of the creation.

The second A picture is a schematic diagram of the creation of the battery module.

The second picture B is a schematic diagram showing the detailed structure relationship of the energy storage cabinet monitoring device.

The third figure is a block diagram showing the detailed structure of the sensing module of the battery module.

The fourth picture is a schematic diagram of the action of this creation.

Referring to the second figure, the present invention provides a grid-level energy storage device, comprising: an energy storage cabinet body 3, the energy storage cabinet body 3 is a casing, and the energy storage cabinet body 3 is provided with a shell body. 31. The side surface of the shell body 31 is provided with a movable side cover 32. The side cover 32 is provided with a plurality of heat dissipation holes 321 . In the embodiment, the shell body 31 is formed as a long side. The side cover 32 is disposed on at least one of the left and right sides of the shell body 31. The shell body 31 can be provided with a warning device 35 for displaying the energy storage cabinet. The operation status message or the abnormal alarm message, the warning device 35 may specifically display In the present embodiment, the warning device 35 is disposed on one side of the case body 31, such as the front side, and the warning device 35 is exemplified by a display screen. In addition, the warning device 35 can also be used instead. An external electronic device having a screen, such as a tablet computer, is used instead, thereby improving the maneuverability and elasticity of the operation, and the housing body 31 is separated by a partition 33 to partition a device housing space 331 and a battery pack. The space 332, in general, the partition 33 can be vertically erected or horizontally erected. In the present embodiment, the partition 33 is horizontally erected to separate the device accommodating space 331 from the space. The battery pack accommodating space 332 is provided with a plurality of carriers 34 disposed at equal intervals from the top to the bottom. The module 4 is placed above the module 34, and the carrier 34 is respectively provided with a positioning block 341 extending in the longitudinal direction or the lateral direction, and the battery module 4 placed therein can achieve the effect of stopping the positioning. Avoid moving the battery module 4 when moving the energy storage cabinet Dropping, thereby improving the reliability of the product of the present invention, in addition, the carrier 34 is formed or provided with an appropriately sized transparent area 342 between adjacent positioning blocks 341, and the battery module 4 is placed on the bearing. After the frame 34 is above, the transparent area 342 can provide a flow path at the bottom of the battery module 4, thereby improving the heat dissipation effect; generally, the battery modules 4 are connected in series and/or in parallel to form a larger capacity storage. The battery module 4 can be a lead-acid battery or a lithium-iron battery. Please refer to the second figure A. The battery module 4 is provided with a battery core 41 and a battery core 41. The sensing module 42 is electrically connected to the sensing module 42 . The sensing module 42 can be disposed on the upper surface of the battery module 4 . Please refer to the third figure. The sensing module 42 is provided with a first micro control. The sensor 421 is electrically connected to the sensor 422 and the wireless communication module 423, and the sensor 422 is specifically a voltage sense. Measurement The temperature sensor or the temperature sensor is configured to sense the voltage or temperature of the battery core 41. The wireless communication module 423 is configured to wirelessly transmit the sensing data of the sensor 422 to the control device at the back end. The wireless communication module 423 is specifically a wireless communication chip (RF IC) conforming to the IEEE 802.15.4 standard; an energy storage cabinet monitoring device 5, and the energy storage cabinet monitoring device 5 is disposed on the device body of the shell body 31. In the space 331, please refer to the second figure B. The storage cabinet monitoring device 5 is provided with a second microcontroller 51, a pair of internal wireless communication modules 52 and an external communication module 53. The second microcontroller 51 is electrically connected to the warning device 35, the internal wireless communication module 52 and the external communication module 53 respectively, wherein the internal wireless communication module 52 is in wireless communication with the battery module 4. The module 423 is configured to transmit and exchange information with the wireless communication module 423, for example, receive battery sensing data transmitted from the wireless communication module 423, or transmit the control signal to the wireless communication module 423. A control is usually executed in the second microcontroller 51. The battery management system (BMS) is used to control the charging and discharging actions of the individual battery modules 4 according to the battery sensing data, thereby achieving optimal control effect of load balancing, and, in addition, please refer to As shown in FIG. 4 , the external communication module 53 can be a WiFi communication module or an RS-232 interface, so that the external communication module 53 can be connected to a management control device 6 in a wired or wireless manner. The management control device 6 is specifically an industrial computer. Generally, the management control device 6 generally executes a graphic control software for monitoring the operation state of the entire energy storage system (ESS); see the second B. As shown in the figure, as a preferred embodiment of the present invention, the internal wireless communication module 52 is disposed at the bottom of the energy storage cabinet monitoring device 5, and the external communication module 53 can be disposed in the energy storage cabinet for monitoring. The top of the device 5, at this time, please refer to the second As shown in FIG. A, the storage cabinet monitoring device 5 can be located above each battery module 4 by separating the device accommodation space 331 above the battery pack accommodation space 332. Thus, the in-band wireless communication The antenna of the module 52 can face the antenna of the wireless communication module 423 of each of the lower battery modules 4, so as to achieve the best signal transmission and reception effect; in addition, when there are multiple energy storage cabinets combined, due to other energy storage The cabinet is usually placed on the side of an energy storage cabinet rather than below it. Therefore, the configuration of this creation will also avoid or greatly reduce the interference of the internal wireless communication module 52 of one energy storage cabinet to other energy storage cabinets. In the case of the battery module 4, the probability of communication confusion can be reduced and the complexity of the related software and hardware design can be reduced, thereby improving the reliability and practicability of the creation; in addition, please refer to the second figure A The present invention may further include a dedicated battery 7 electrically connected to the energy storage cabinet monitoring device 5 for independently supplying power required by the energy storage cabinet monitoring device 5, and the dedicated battery 7 may also be Provided on the carrier 34 and can be The battery module 4 accepts the charging and energy storage operation, but the power is not provided to other loads, thereby preventing the operation of the energy storage cabinet monitoring device 5 from being affected by the state of charge of the general battery module 4, so that The present invention can achieve better reliability; please refer to the second and third figures, wherein the battery module 4 is provided with a wireless communication module 423, and the housing body 31 is provided with an energy storage cabinet monitoring device 5 The energy storage cabinet monitoring device 5 is provided with an internal wireless communication module 52 corresponding to the wireless communication module 423. Therefore, please refer to the first micro-indicator in each battery module 4 as shown in the fourth figure. The controller 421 can transmit the sensing data of the sensor 422 to the second microcontroller 51 of the energy storage cabinet monitoring device 5 through the wireless communication module 423 and the inbound wireless communication module 52, the second micro The controller 51 can then transmit the sensing data to the warning device 35 to display the signal or the screen information. Meanwhile, the second microcontroller 51 can further transmit the sensing data through the external communication module 53. In wired or wireless mode It is selected as wireless (such as WiFi) and transmitted to the remotely located management control device 6, so that the remote monitoring personnel can instantly monitor the charging and discharging states of the energy storage cabinet and the battery module 4, so that the creation can achieve wireless feeling. The grid-level energy storage device of the measurement function; in addition, when the battery module 4 itself is abnormal, or the communication between the battery module 4 and the energy storage cabinet monitoring device 5 is abnormal, the creation can also be performed on the management control device 6 Or the warning device 35 displays a light signal or screen information representing an abnormal message, which can facilitate maintenance or troubleshooting; please refer to the second and third figures, and the storage body is provided with the energy storage cabinet. The device 5 and the energy storage cabinet monitoring device 5 are provided with an internal wireless communication module 52, please refer to the fourth figure, so that the creation can be matched with the battery module 4 with wireless sensing function, and wirelessly The method of transmitting the sensing parameters of the temperature and voltage of the battery to the energy storage cabinet monitoring device 5 and the management control device 6 at the back end, and omitting the setting of the signal transmission line between the battery module 4 and the energy storage cabinet monitoring device 5, This saves quite Wire concept and construction costs, labor hours needed to maintain and improve the cooling effect of the storage cabinet, thereby enabling the creation of this can be achieved cost savings and improve the effectiveness of the reliability of the system.

3‧‧‧ Energy storage cabinet body

31‧‧‧Shell body

32‧‧‧ side cover

321‧‧‧ vents

33‧‧‧Baffle

331‧‧‧Device accommodation space

332‧‧‧Battery pack accommodation space

34‧‧‧ Carrier

341‧‧‧ Positioning bracket

342‧‧‧deep area

35‧‧‧ Warning device

5‧‧‧ Energy storage cabinet monitoring device

Claims (10)

A power grid-level energy storage device includes: an energy storage cabinet body, the energy storage cabinet body is provided with a shell body, and at least one side of the shell body is provided with a movable side cover, and the shell body is transparent a partitioning area separates a device accommodating space and a battery pack accommodating space, and the battery pack accommodating space is provided with a plurality of carriers arranged at an upper and lower intervals; an energy storage cabinet monitoring device, the energy storage device The cabinet monitoring device is disposed in a device accommodating space of the shell body, wherein the energy storage cabinet monitoring device is provided with a second microcontroller, a pair of internal wireless communication modules, and an external communication module, and the second microcontroller They are electrically connected to the internal wireless communication module and the external communication module. The grid-level energy storage device of claim 1, wherein the carrier is provided with a positioning block extending longitudinally or laterally. The grid-level energy storage device of claim 2, wherein the carrier is provided with a transparent area between adjacent positioning blocks. The power grid-level energy storage device of claim 1, wherein the housing body is provided with a warning device. The power grid-level energy storage device of claim 1, wherein the side cover is provided with a plurality of heat dissipation holes. The grid-level energy storage device of claim 1, wherein the partition is disposed in a horizontally erected manner, and the device is vacantly spaced above the battery pack accommodating space. The grid-level energy storage device of claim 6, wherein the pair of internal wireless communication modules are disposed at a bottom of the energy storage cabinet monitoring device, and the external communication module is disposed at the energy storage cabinet monitoring device the top of. The power grid-level energy storage device of claim 7, further comprising at least one battery module, the battery module is disposed on the carrier, and the battery module is provided with a battery core and a battery The sensing module is electrically connected to the core, and the sensing module is disposed on the upper surface of the battery module. The power grid-level energy storage device of claim 8, wherein the sensing module is provided with a first microcontroller, a sensor, and an internal wireless communication module with the energy storage cabinet monitoring device. The corresponding wireless communication module. The power grid-level energy storage device according to claim 9, wherein the utility model further comprises a special battery electrically connected to the energy storage cabinet monitoring device for independently supplying the energy storage cabinet monitoring device. electric power.