Energy storage multi-pack adaptive management system
Patent Information
- Application Number
- CN202521786412.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-08-21
AI Technical Summary
[0003]但是现有的基于拨码开关的硬件级静态管理，存在操作繁琐且灵活性差，需人工逐一拨码效率低下；地址容量有限并且地址冲突风险高，参数管理能力不足，难以支持大规模系统，缺乏自适应调节机制，无法适应多样化需求
[0006]本实用新型的有益效果：采用本实用新型的结构，当储能系统接入新电池包时，Pack中的SCU模块通过CAN总线向主机发送“请求地址”指令，主机自动地址分配完成后SCU将地址保存在本地，全程无需人工操作。
Smart Images
Figure CN224909112U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of energy storage multi-pack management system, and specifically relates to a multi-pack management system. Background Technology
[0002] Current energy storage systems generally adopt a hardware-level static management architecture based on DIP switches for multi-pack management. Its core lies in configuring the address and attributes of the pack unit through physical switches to achieve hierarchical control. Each pack's BMU is set with a unique address (usually 4-8 bits) via DIP switches. For example, a five-bit DIP switch supports 32 addresses (0-31), and binary encoding is achieved through switch combinations (e.g., address 5 = switch 1 + 4 enabled). When the main control unit (SCU / BCU) scans the bus, it identifies the pack based on the DIP switch value and establishes a "physical address - pack data" mapping table.
[0003] However, existing hardware-level static management based on DIP switches suffers from several drawbacks. It is cumbersome and inflexible, requiring manual switching of individual switches, resulting in low efficiency. It also suffers from limited address capacity, high risk of address conflicts, insufficient parameter management capabilities, difficulty in supporting large-scale systems, lack of adaptive adjustment mechanisms, and inability to adapt to diverse needs. Furthermore, it is characterized by high maintenance costs, low intelligence, reliance on manual troubleshooting, and inability to integrate with intelligent management systems. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model proposes an energy storage multi-pack adaptive management system, in which each battery pack is equipped with an SCU board, and the SCU board performs address allocation by monitoring valid signals through its DI.
[0005] The technical solution adopted in this utility model is: an adaptive management system for multi-pack energy storage, including a BCU, a CAN bus, and multiple battery packs. Each battery pack is equipped with an SCU board, and each SCU board interacts with the BCU via the CAN bus. The DI on the SCU board of the first battery pack is connected to the DO on the BCU. The DI on the SCU board of subsequent battery packs is connected to the DO on the SCU board of the previous battery pack. The DO on the SCU board of the last battery pack is connected to the DI on the BCU.
[0006] The beneficial effects of this utility model are as follows: When a new battery pack is connected to the energy storage system using the structure of this utility model, the SCU module in the pack sends a "request address" command to the host via the CAN bus. After the host automatically assigns the address, the SCU saves the address locally, and no manual operation is required throughout the process. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the system of this utility model. Detailed Implementation
[0008] To facilitate understanding of the technical content of this utility model by those skilled in the art, the content of this utility model will be further explained below with reference to the accompanying drawings.
[0009] like Figure 1 The diagram shows a system schematic of this utility model. This utility model discloses an energy storage multi-pack adaptive management system, including multiple battery packs (i.e., Packs), a CAN bus, and a BCU. Each battery pack is equipped with an SCU board, and each SCU board interacts with the BCU via the CAN bus. The DI on the SCU board of the first battery pack is connected to the DO on the BCU. The DI on the SCU board of subsequent battery packs is connected to the DO on the SCU board of the previous battery pack. The DO on the SCU board of the last battery pack is connected to the DI on the BCU.
[0010] In this invention, DIDO is used as a control signal for SCU address allocation. After a new Pack is mounted on the entire energy storage system, it sends an address allocation request to the BCU at address 0xFF. After receiving the request command, the BCU releases a valid signal. The DI on the first SCU board is connected to the DO on the BCU. When the DI on the first SCU detects the valid signal, it starts automatic address allocation. After the first SCU board completes the address allocation and saves it locally, it exchanges information with the BCU. After receiving the command from the BCU that the allocation is complete, it releases a valid signal to the next SCU board, and so on until all Packs complete automatic address allocation.
[0011] With the structure of this utility model, when a new battery pack is connected to the energy storage system, the SCU module in the pack sends a "request address" command to the host via the CAN bus. After the host automatically assigns the address, the SCU saves the address locally, and no manual operation is required throughout the process.
[0012] A battery pack includes multiple battery modules, each supporting 5 BMUs. The specific number of BMUs can be configured as needed in actual applications. Figure 1 As shown, in this embodiment, each battery module is independently configured with one BMU (Battery Management Unit) to collect the voltage and temperature of all cells in the module and perform equalization control. One BMU can support the collection of data from up to 18 cells. The BMU compresses and uploads the data to the BCU (Battery Cluster Controller) via the CAN bus.
[0013] In practical applications, the BMU in the same battery pack can be integrated into the SCU board mounted on the battery pack. Thus, the number of cells can be arranged into modules as needed, and each module is assigned an address, with the SCU performing pack-level data management.
[0014] Those skilled in the art should know that the CAN bus forms a differential signal transmission channel through CANH (high-speed line) and CANL (low-speed line). In practical applications, both SCU and BCU use the standard DB9 interface: pin 2 (CANL) is connected to the low-level differential line, pin 7 (CANH) is connected to the high-level differential line, and pin 3 (GND) is used as the signal reference ground.
[0015] Those skilled in the art will recognize that the embodiments described herein are for the purpose of helping to understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Various modifications and variations can be made to this invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of the claims of this invention.
Claims
1. An adaptive management system for multi-pack energy storage, characterized in that, It includes a BCU, a CAN bus, and multiple battery packs. Each battery pack is equipped with an SCU board, and each SCU board interacts with the BCU via the CAN bus. The DI on the SCU board of the first battery pack is connected to the DO on the BCU. The DI on the SCU board of subsequent battery packs is connected to the DO on the SCU board of the previous battery pack. The DO on the SCU board of the last battery pack is connected to the DI on the BCU. The SCU module of a new battery pack sends a "request address" command to the host via the CAN bus.
2. The energy storage multi-pack adaptive management system according to claim 1, characterized in that, A battery pack contains multiple battery modules.
3. The energy storage multi-pack adaptive management system according to claim 2, characterized in that, Each battery module supports 5 BMUs.
4. The energy storage multi-pack adaptive management system according to claim 3, characterized in that, The BMU in each battery pack is integrated into the SCU board mounted on that battery pack.