Air-cooled sodium electrical commercial energy storage system

Abstract

This utility model discloses an air-cooled sodium-ion battery commercial energy storage system, including a main cabinet and a slave cabinet. The main cabinet has a battery compartment for installing sodium-ion battery packs and an electrical compartment for installing electrical control equipment. The slave cabinet has a battery compartment for installing sodium-ion battery packs. The main cabinet and the slave cabinet are electrically connected by a bus harness. By adopting a structural design suitable for sodium-ion batteries, the entire energy storage system can take advantage of the wide operating temperature range of sodium-ion batteries, operating normally within a temperature range of -40℃ to 80℃. At the same time, it adopts customizable bus harnesses and customizable sodium-ion battery pack numbers to accommodate more different industrial and commercial energy storage needs.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment, and in particular to an air-cooled sodium electrical commercial energy storage system. Background Technology

[0002] Lithium iron phosphate (LFP) batteries are widely used in traditional industrial and commercial energy storage systems. LFP battery energy storage systems can take advantage of peak-valley electricity price differences, charging during off-peak hours and discharging during peak hours, reducing the electricity costs for enterprises. At the same time, they can provide emergency power for critical equipment (such as servers and lighting) during grid outages. As the technology continues to mature, its application areas are constantly expanding in various markets. However, due to the low energy density of LFP batteries and the significant capacity decay at low temperatures, sodium-ion batteries are gradually being used to replace LFP batteries in existing technologies. Therefore, there is a need to design an energy storage system suitable for industrial and commercial use based on sodium-ion batteries. To address this need, this application proposes a solution. Summary of the Invention

[0003] Purpose of the utility model: The purpose of this utility model is to provide an air-cooled sodium electrical commercial energy storage system that can meet the energy storage needs of industrial and commercial enterprises, operate normally in a wider temperature range, and be compatible with more different industrial and commercial energy storage needs.

[0004] Technical solution: The present invention discloses a wind-cooled sodium electrical commercial energy storage system, comprising a main cabinet and a slave cabinet. The main cabinet is provided with a battery compartment for installing sodium-ion battery packs and an electrical compartment for installing electrical control equipment. The slave cabinet is provided with a battery compartment for installing sodium-ion battery packs. The main cabinet and the slave cabinet are electrically connected by a bus harness.

[0005] The system consists of a main cabinet and a slave cabinet. The sodium-ion battery packs in the second battery compartment of the slave cabinet are fed into the main cabinet, and then together with the sodium-ion battery packs in the first battery compartment of the main cabinet, they are fed into the electrical compartment for unified conversion and management, and finally provided to the power grid.

[0006] Preferably, both battery compartment one and battery compartment two are equipped with multiple sodium-ion battery packs, which are detachably installed inside battery compartment one and battery compartment two.

[0007] Preferably, the electrical compartment is equipped with a high-voltage box 1, a high-voltage box 2, a power conversion system (PCS), and a molded case circuit breaker. The high-voltage box 1 houses a battery management system (BMS) 1 for the sodium-ion battery pack installed in the main control battery compartment 1, and the BMS 1 is electrically connected to the sodium-ion battery pack in the battery compartment 1. The high-voltage box 2 houses a battery management system (BMS) 2 for the sodium-ion battery pack installed in the main control battery compartment 2, and the BMS 2 is electrically connected to the sodium-ion battery pack in the battery compartment 2. The high-voltage box 1 and high-voltage box 2 are electrically connected to the power conversion system (PCS), the PCS is electrically connected to the molded case circuit breaker, and the molded case circuit breaker is electrically connected to the external power grid.

[0008] The sodium-ion battery pack in battery compartment 2 transmits power to battery management system BMS 2 through the bus harness. Together with the sodium-ion battery pack in battery compartment 1 connected to battery management system BMS 1, they flow into power conversion system PCS to achieve AC-DC conversion. Finally, the power is transmitted through power conversion system PCS to molded case circuit breaker and then connected to the power grid.

[0009] Preferably, both the top of battery compartment one and the top of battery compartment two are provided with air inlet ducts of the same structure, which are connected to the air outlet of the air conditioner. The air inlets of the sodium-ion battery pack are uniformly located on the left or right side of the sodium-ion battery pack, and the air outlets of the sodium-ion battery pack are located at the front end of the sodium-ion battery pack. The air inlet ducts are connected to the air inlets of the sodium-ion battery pack, and the air outlets of the sodium-ion battery pack are connected to the air outlets of the air conditioner.

[0010] The air conditioner's air outlet connects to the air inlet duct, then sequentially connects to the air inlet of the sodium-ion battery pack, the air outlet of the sodium-ion battery pack, and finally returns to the air conditioner's air outlet, forming a circulation throughout the entire duct. This facilitates monitoring the temperature inside the entire battery compartment and allows for real-time temperature control.

[0011] Preferably, the length of the bus harness is customized according to the actual distance between the master cabinet and the slave cabinet.

[0012] Customizing the length of the busbar harness can better adapt to the limitations of different sites and improve the overall adaptability of the energy storage system.

[0013] Preferably, the number of sodium-ion battery packs in battery compartment one and battery compartment two matches the actual needs.

[0014] The adjustable number of sodium-ion battery packs can be adapted to solutions with different power requirements, meeting a variety of customer needs.

[0015] Beneficial effects: Compared with the prior art, this utility model has the following advantages:

[0016] By adopting a structural design suitable for sodium-ion batteries, the entire energy storage system can take advantage of the wide operating temperature range of sodium-ion batteries, operating normally within a temperature range of -40℃ to 80℃. At the same time, it adopts customizable bus harnesses and customizable sodium-ion battery pack numbers to accommodate more diverse industrial and commercial energy storage needs. Attached Figure Description

[0017] Figure 1 This is a front perspective view of the main cabinet in this utility model.

[0018] Figure 2 This is a front perspective view of the cabinet in this utility model. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0020] See appendix Figures 1-2 The figure shows that the air-cooled sodium electrical commercial energy storage system of this utility model includes a main cabinet 1 and a slave cabinet 2. The main cabinet 1 is equipped with a battery compartment 4 for installing sodium-ion battery packs 3 and an electrical compartment 5 for installing electrical control equipment. The slave cabinet 2 is equipped with a battery compartment 6 for installing sodium-ion battery packs 3. The main cabinet 1 and the slave cabinet 2 are electrically connected by a bus harness. The system is formed by one main cabinet 1 and one slave cabinet 2. The sodium-ion battery packs 3 in the battery compartment 6 of the slave cabinet 1 are fed into the main cabinet 1 and then together with the sodium-ion battery packs 3 in the battery compartment 4 of the main cabinet 1, they are fed into the electrical compartment 5 for unified conversion and management, and finally provided to the power grid.

[0021] In this embodiment, 16 sodium-ion battery packs 3 can be detachably installed in both battery compartment 4 and battery compartment 6. The number of sodium-ion battery packs 3 can be adjusted according to on-site needs to adapt to different power schemes.

[0022] In this embodiment, the electrical compartment 5 is equipped with a high-voltage box 7, a high-voltage box 8, a power conversion system PCS9, and a molded case circuit breaker 10. The high-voltage box 7 houses a battery management system (BMS) for the sodium-ion battery pack 3 installed in the main control battery compartment 4. The BMS is electrically connected to the sodium-ion battery pack 3 in the battery compartment 4. The high-voltage box 8 houses a battery management system (BMS) for the sodium-ion battery pack 3 installed in the main control battery compartment 6. The BMS is electrically connected to the sodium-ion battery pack 3 in the battery compartment 6. High-voltage boxes 7 and 8 are electrically connected to the power conversion system PCS9. The power conversion system PCS9 is electrically connected to the molded case circuit breaker 10. The molded case circuit breaker 10 is electrically connected to the external power grid. The sodium-ion battery pack 3 in battery compartment 6 transmits power to the battery management system BMS2 through the bus harness. Together with the sodium-ion battery pack 3 in battery compartment 4 connected to the battery management system BMS1, they flow into the power conversion system PCS9 to achieve AC / DC conversion. Finally, the power is transmitted through the power conversion system PCS9 to the molded case circuit breaker 10 and then connected to the power grid.

[0023] In this embodiment, both the top of battery compartment 4 and the top of battery compartment 6 are provided with identical air inlet ducts 11. The air inlet ducts 11 are connected to the air outlet of the air conditioner. The air inlets of the sodium-ion battery pack 3 are uniformly located on the left or right side of the sodium-ion battery pack 3, and the air outlets of the sodium-ion battery pack 3 are located at the front end of the sodium-ion battery pack 3. The air inlet ducts 11 are connected to the air inlets of the sodium-ion battery pack 3, and the air outlets of the sodium-ion battery pack 3 are connected to the air outlets of the air conditioner. After the air outlet of the air conditioner is connected to the air inlet ducts 11, it is sequentially connected to the air inlets of the sodium-ion battery pack 3 and the air outlets of the sodium-ion battery pack 3, and finally returns to the air outlet of the air conditioner, forming a circulation of the entire air duct. This facilitates monitoring the temperature inside the entire battery compartment and real-time adjustment based on the temperature.

[0024] In this embodiment, the length of the busbar is customized according to the actual distance between the main cabinet 1 and the slave cabinet 2, which can better adapt to the limitations of different sites and improve the overall adaptability of the energy storage system.

Claims

1. A wind-cooled sodium electrical commercial energy storage system, characterized in that: It includes a main cabinet (1) and a slave cabinet (2). The main cabinet (1) is provided with a battery compartment (4) for installing sodium-ion battery packs (3) and an electrical compartment (5) for installing electrical control equipment. The slave cabinet (2) is provided with a battery compartment (6) for installing sodium-ion battery packs (3). The main cabinet (1) and the slave cabinet (2) are electrically connected by a busbar harness.

2. The air-cooled sodium electrical commercial energy storage system according to claim 1, characterized in that: Multiple sodium-ion battery packs (3) are installed in both battery compartment one (4) and battery compartment two (6), and the multiple sodium-ion battery packs (3) are detachably installed inside battery compartment one (4) and battery compartment two (6).

3. The air-cooled sodium electrical commercial energy storage system according to claim 1, characterized in that: The electrical compartment (5) is equipped with a high-voltage box 1 (7), a high-voltage box 2 (8), a power conversion system PCS (9), and a molded case circuit breaker (10). The high-voltage box 1 (7) is equipped with a battery management system BMS 1 for sodium-ion battery packs (3) installed in the main control battery compartment 1 (4). The battery management system BMS 1 is electrically connected to the sodium-ion battery packs (3) in the battery compartment 1 (4). The high-voltage box 2 (8) is equipped with a battery management system BMS 2 for sodium-ion battery packs (3) installed in the main control battery compartment 2 (6). The battery management system BMS 2 is electrically connected to the sodium-ion battery packs (3) in the battery compartment 2 (6). The high-voltage box 1 (7) and the high-voltage box 2 (8) are electrically connected to the power conversion system PCS (9). The power conversion system PCS (9) is electrically connected to the molded case circuit breaker (10). The molded case circuit breaker (10) is electrically connected to the external power grid.

4. The air-cooled sodium electrical commercial energy storage system according to claim 1, characterized in that: Both the top of the first battery compartment (4) and the top of the second battery compartment (6) are provided with air inlet ducts (11) of the same structure. The air inlet ducts (11) are connected to the air outlet of the air conditioner. The air inlets of the sodium-ion battery pack (3) are uniformly located on the left or right side of the sodium-ion battery pack (3). The air outlets of the sodium-ion battery pack (3) are located at the front end of the sodium-ion battery pack (3). The air inlet ducts (11) are connected to the air inlets of the sodium-ion battery pack (3). The air outlets of the sodium-ion battery pack (3) are connected to the air outlets of the air conditioner.

5. The air-cooled sodium electrical commercial energy storage system according to claim 1, characterized in that: The length of the busbar is customized according to the actual distance between the main cabinet (1) and the slave cabinet (2).

6. The air-cooled sodium electrical commercial energy storage system according to claim 1, characterized in that: The number of sodium-ion battery packs (3) in battery compartment one (4) and battery compartment two (6) is matched with the actual needs.

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