Energy storage and pressure boosting integrated bin

Abstract

The utility model discloses an energy storage and boosting integrated bin, and aims to solve the problem of non-uniform temperature control of a transformer in an existing boosting integrated bin. The device comprises a box body, the box body is internally provided with a control cabinet chamber, a high-voltage cabinet chamber, a transformer chamber and a PCS placement area, and the top of the transformer chamber is provided with a heat dissipation chamber; through reasonable arrangement, compartment design is carried out, the overall structure is compact in size and reasonable in layout, the cost of the whole machine is reduced, the attractiveness is improved, and meanwhile, through optimization design of heat dissipation of the whole system, temperature control is more uniform; the primary transformer is independently mounted in a transformer chamber, and an overhead air cooling scheme is adopted, so that the temperature uniformity of a three-phase winding is ensured; the auxiliary transformer and the primary transformer share the air duct structure, and a heat dissipation system is not independently arranged any more, so that the cost is saved, and the heat dissipation efficiency is improved; the PCS is installed in a back-to-back mode and connected with the low-voltage side of the primary transformer through the copper bars, and the connecting copper bars are simple in structure.

Description

Technical Field

[0001] This application relates to the field of energy storage electrical equipment technology, specifically to an integrated energy storage booster chamber. Background Technology

[0002] With the application of renewable energy, the single-unit capacity of energy storage DC power units is rapidly increasing, necessitating a reliable and structurally sound integrated energy storage and booster system to meet high-power requirements and adapt to the market. In the entire integrated booster system, the PCS (Power Conversion System) and transformer are key components; with the market demand for large-capacity energy storage installations, the capacity of the PCS and transformer also needs to increase, and heat dissipation for the PCS and transformer is crucial. While prefabricated enclosures offer a high degree of standardization, integrated energy storage and booster systems, due to unreasonable selection of internal equipment and structural design, struggle to achieve a similar level of standardization.

[0003] There are generally three structural layout options for existing integrated energy storage and booster cabinets: Option 1: All electrical equipment is installed outdoors and connected by a dense busbar after each unit is in place; Option 2: Prefabricated cabinets are used to integrate transformers, high-voltage distribution cabinets, etc., while the PCS is placed separately and shipped after unified integration; Option 3: Prefabricated container structure is used, integrating transformers, high-voltage distribution cabinets, and control cabinets together, with the PCS using an outdoor rainproof structure, resulting in a smoother structure.

[0004] However, in existing integrated booster cabinets, the power output of a single unit has increased from 2.5MW to 5MW. With the emergence of high power, the heat dissipation of the transformer and PCS is crucial. Currently, the heat dissipation design inside the prefabricated cabinet has some shortcomings. For example, the transformer has an air inlet at the bottom front and a forced exhaust fan is installed at the top back of the cabinet. This heat dissipation method leads to uneven temperature control of the transformer. At the same time, all the primary circuit components are fixed in the integrated cabinet. Although this saves on cabinet costs, it is not aesthetically pleasing. Utility Model Content

[0005] Therefore, this application provides an integrated energy storage and booster compartment to solve the problem of uneven transformer temperature control in existing integrated booster compartments.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] An integrated energy storage and booster compartment includes a housing. Inside the housing, along its length, there is a control cabinet compartment on the left, a transformer compartment in the middle, and a PCS placement area on the right. A high-voltage cabinet compartment is located behind the control cabinet compartment, and a heat dissipation compartment is located on top of the transformer compartment.

[0008] The transformer compartment is equipped with a primary transformer. The PCS placement area is provided with a waterproof cable tray and at least one PCS. The interior of the waterproof cable tray is equipped with a copper busbar, which is used to connect the PCS to the low-voltage side of the primary transformer.

[0009] The control cabinet compartment and the high-voltage cabinet compartment share a cooling air conditioner installed on the side wall. The control cabinet compartment is equipped with an electrical control system, and the high-voltage cabinet compartment is equipped with a high-voltage gas cabinet. The electrical control system is connected to the primary transformer and the high-voltage gas cabinet respectively.

[0010] Optionally, it also includes an auxiliary transformer, which is located inside the control cabinet compartment on the side close to the transformer compartment, and the front of the auxiliary transformer is provided with air inlet louvers A;

[0011] The auxiliary transformer and the primary transformer share a common air duct structure.

[0012] Optionally, the transformer compartment and the heat dissipation compartment share a front and rear door panel, with air inlet louvers B at the bottom and air outlet louvers at the top of the front and rear door panel.

[0013] Optionally, an air outlet baffle is provided on the outside of the air outlet louver.

[0014] Optionally, the heat dissipation chamber is provided with a fixed platform, and a heat dissipation fan is installed on the upper part of the fixed platform.

[0015] Optionally, the number of PCS is 1 to 4.

[0016] Optionally, there are two PCS units, and the two PCS units are arranged back to back along the width direction of the enclosure. The waterproof cable tray is located between the two PCS units, and the copper busbar is used to connect the two PCS units and the low-voltage side of the primary transformer.

[0017] Optionally, the copper busbar is fixed by a copper busbar support block.

[0018] Compared with the prior art, this application has at least the following beneficial effects:

[0019] Based on further analysis and research of existing technical problems, this application provides an integrated energy storage and booster chamber, including a housing. The housing contains a control cabinet compartment, a high-voltage cabinet compartment, a transformer compartment, and a PCS (Power Conversion System) placement area. A heat dissipation compartment is located on top of the transformer compartment. This application employs a rationally designed compartmentalized layout and a gas-fired high-pressure cabinet structure, resulting in a compact and aesthetically pleasing overall structure. This not only reduces the overall cost but also enhances the aesthetics. Furthermore, optimized heat dissipation design for the entire system ensures more uniform temperature control. The primary transformer is installed separately in a transformer compartment and uses a top-mounted air-cooling scheme, guaranteeing the temperature uniformity of the three-phase windings. The auxiliary transformer shares an air duct structure with the primary transformer, eliminating the need for a separate heat dissipation system, saving costs and improving heat dissipation efficiency. The PCS are installed back-to-back and connected to the low-voltage side of the primary transformer via copper busbars, simplifying the connection structure.

[0020] In addition, waterproof cable trays are installed in the PCS placement area, and copper busbars are fixed with copper busbar support blocks. This not only provides waterproof and dustproof protection, but also enhances the mechanical stability and reliability of the system. It makes the copper busbar layout more neat and compact, saves space, and improves the aesthetics and ease of maintenance of the equipment. Attached Figure Description

[0021] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0022] Figure 1 A schematic diagram of the structure of an integrated energy storage and booster chamber provided in one embodiment of this application. Figure 1 ;

[0023] Figure 2 A schematic diagram of the structure of an integrated energy storage and booster chamber provided in one embodiment of this application. Figure 2 ;

[0024] Figure 3 Internal structure diagram shown Figure 1 ;

[0025] Figure 4 for Figure 1 Internal structure diagram shown Figure 2 ;

[0026] Figure 5 for Figure 1 Internal structure diagram shown Figure 3 ;

[0027] Figure 6 for Figure 5 A partial schematic diagram of the copper busbar.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Enclosure; 2. Control cabinet compartment; 3. High-voltage cabinet compartment; 4. Transformer compartment; 5. Heat dissipation compartment; 6. PCS; 7. Electrical control system; 8. Cooling and air conditioning; 9. Auxiliary transformer; 10. Primary transformer; 11. Cooling fan; 12. Fixed platform; 13. Air inlet louver A; 14. Air inlet louver B; 15. Air outlet louver; 16. Air outlet baffle; 17. Waterproof cable tray; 18. Copper busbar; 19. Copper busbar support block; 20. High-voltage gas cabinet. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of this application: unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," etc., in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "comprising," "including," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0032] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to indicate the general relative positional relationship for the purpose of intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product.

[0033] One embodiment of this application provides an integrated energy storage and booster chamber, such as... Figures 1-6 As shown, the enclosure includes a housing 1. Inside the housing 1, along its length, there is a control cabinet compartment 2 on the left, a transformer compartment 4 in the middle, and a PCS placement area on the right. A high-voltage cabinet compartment 3 is located behind the control cabinet compartment 2, and a heat dissipation compartment 5 is located on top of the transformer compartment 4. The transformer compartment 4 is connected to the PCS placement area and is used to boost or deboost the current input to the transformer compartment 4. The high-voltage cabinet compartment 3 is connected to the transformer compartment 4 and is used to connect to an external power grid for charging or discharging.

[0034] The transformer compartment 4 is equipped with a primary transformer 10. The interior of the PCS placement area is provided with a waterproof cable tray 17 and at least one PCS 6. The interior of the waterproof cable tray 17 is equipped with a copper busbar 18, which is used to connect the PCS 6 to the low-voltage side of the primary transformer 10.

[0035] The control cabinet compartment 2 and the high-voltage cabinet compartment 3 share a cooling air conditioner 8 installed on the side wall. The control cabinet compartment 2 is equipped with an electrical control system 7, and the high-voltage cabinet compartment 3 is equipped with a high-voltage gas cabinet 20. The electrical control system 7 is connected to the primary transformer 10 and the high-voltage gas cabinet 20 respectively. The cooling air conditioner 8 can ensure the reliability of heat dissipation of the components inside the control cabinet compartment 2 and the high-voltage gas cabinet 20.

[0036] Preferably, the number of PCS is 1-4 units.

[0037] In one embodiment, such as Figure 5 , Figure 6 As shown, there are two PCS6 units in the PCS placement area. The two PCS6 units are arranged back to back along the width direction of the enclosure 1, and a waterproof cable tray 17 is provided between the two PCS6 units. A copper busbar 18 is installed inside the waterproof cable tray 17. The copper busbar 18 is used to connect the two PCS6 units and connect the output of the PCS6 units to the low-voltage side of the primary transformer 10.

[0038] Preferably, it also includes an auxiliary transformer 9, which is located inside the control cabinet compartment 2 on the side close to the transformer compartment 4, and the front of the auxiliary transformer 9 is provided with an air inlet louver A13;

[0039] The auxiliary transformer 9 and the primary transformer 10 share a common air duct structure.

[0040] Preferably, the transformer compartment 4 and the heat dissipation compartment 5 share a front and rear door panel, with air inlet louvers B14 at the bottom and air outlet louvers 15 at the top of the front and rear door panel.

[0041] More preferably, to prevent hot air from short-circuiting, an air outlet baffle 16 is provided on the outside of the air outlet louver 15.

[0042] Preferably, the heat dissipation chamber 5 is provided with a fixed platform 12, and a heat dissipation fan 11 is installed on the upper part of the fixed platform 12; the number of heat dissipation fans 11 is not limited to two.

[0043] Preferably, such as Figure 5 , Figure 6 As shown, the copper busbar 18 is fixed by the copper busbar support block 19.

[0044] Preferably, such as Figure 1 , Figure 2 As shown, the front of the control cabinet compartment 2 and the rear of the high-voltage cabinet compartment 3 are equipped with doors, but the PCS placement area is not equipped with a door.

[0045] In this application, the system is configured with AC / DC main components (including transformers, PCS, and high-voltage gas cabinets) and a control system (control cabinet compartment), and a compartmentalized design is implemented through a reasonable layout. At the same time, the heat dissipation of the entire system is optimized: the primary transformer 10 is installed in a separate compartment and adopts a top-mounted air-cooled cooling scheme to ensure the temperature uniformity of the three-phase windings; the auxiliary transformer 9 shares the air duct structure with the primary transformer 10, eliminating the need for a separate heat dissipation system and saving system costs; the PCS6 is installed back-to-back and connected to the low-voltage side of the primary transformer 10 through copper busbars 18; a high-voltage gas cabinet structure is adopted, resulting in a compact overall size.

[0046] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. An integrated energy storage and booster chamber, characterized in that, The enclosure includes a control cabinet compartment on the left, a transformer compartment in the middle, and a PCS placement area on the right, arranged along the length of the enclosure. A high-voltage cabinet compartment is located behind the control cabinet compartment, and a heat dissipation compartment is located on top of the transformer compartment. The transformer compartment is equipped with a primary transformer. The PCS placement area is provided with a waterproof cable tray and at least one PCS. A copper busbar is installed inside the waterproof cable tray. The copper busbar is used to connect the PCS to the low-voltage side of the primary transformer. The control cabinet compartment and the high-voltage cabinet compartment share a cooling air conditioner installed on the side wall. The control cabinet compartment is equipped with an electrical control system, and the high-voltage cabinet compartment is equipped with a high-voltage gas cabinet. The electrical control system is connected to the primary transformer and the high-voltage gas cabinet respectively.

2. The integrated energy storage and booster chamber according to claim 1, characterized in that, It also includes an auxiliary transformer, which is located inside the control cabinet compartment on the side close to the transformer compartment, and the front of the auxiliary transformer is provided with air inlet louvers A; The auxiliary transformer and the primary transformer share a common air duct structure.

3. The integrated energy storage and booster chamber according to claim 1 or 2, characterized in that, The transformer compartment and the heat dissipation compartment share a front and rear door panel. The lower part of the front and rear door panel is provided with air inlet louvers B, and the upper part is provided with air outlet louvers.

4. The integrated energy storage and booster chamber according to claim 3, characterized in that, An air outlet baffle is provided on the outside of the air outlet louvers.

5. The integrated energy storage and booster chamber according to claim 1, characterized in that, The heat dissipation chamber is equipped with a fixed platform, and a heat dissipation fan is installed on the upper part of the fixed platform.

6. The integrated energy storage and booster chamber according to claim 1, characterized in that, The number of PCS is 1-4.

7. The integrated energy storage and booster chamber according to claim 1, characterized in that, There are two PCS units, and the two PCS units are arranged back to back along the width direction of the enclosure. The waterproof cable tray is located between the two PCS units, and the copper busbar is used to connect the two PCS units and the low-voltage side of the primary transformer.

8. The integrated energy storage and booster chamber according to claim 1 or 7, characterized in that, The copper busbar is fixed by a copper busbar support block.

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