Energy storage power station

Abstract

This utility model relates to an energy storage power station, comprising: an assembly platform having a first assembly area, a second assembly area, and a third assembly area arranged sequentially along a first direction; multiple energy storage cabinets installed in the first assembly area, each energy storage cabinet including an electrically connected battery cell and a converter; a transformer installed in the third assembly area, the second end of which is used to connect to AC power; and a combiner cabinet installed in the second assembly area, the combiner cabinet being electrically connected to the first end of the transformer and the converter. According to this utility model, the combiner cabinet is located between the first and third assembly areas, which shortens the connection distance between the combiner cabinet and the energy storage cabinet, reducing cable usage and energy loss. Integrating the energy storage cabinets, transformer, and combiner cabinet into a single assembly platform reduces on-site wiring workload and debugging difficulty, further shortening the commissioning and delivery time.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an energy storage power station. Background Technology

[0002] Commercial and industrial energy storage systems mainly consist of equipment such as battery packs, battery management systems (BMS), power conversion systems (PCS), and energy management systems (EMS). Currently, the functional modules of products on the market are designed independently, resulting in problems such as low product integration, long delivery times, and inconvenient operation and maintenance. Utility Model Content

[0003] The purpose of this invention is to provide an energy storage power station that at least partially solves the aforementioned technical problems. This purpose is achieved through the following means:

[0004] This utility model proposes an energy storage power station, comprising: an assembly platform along a first direction, the assembly platform having a first assembly area, a second assembly area, and a third assembly area arranged sequentially; multiple energy storage cabinets installed in the first assembly area, each energy storage cabinet including a battery cell and a converter electrically connected; a transformer installed in the third assembly area, the second end of the transformer being used to connect to AC power; and a combiner cabinet installed in the second assembly area, the combiner cabinet being electrically connected to the first end of the transformer and the converter respectively.

[0005] According to this utility model, the energy storage power station has a first assembly area, a second assembly area, and a third assembly area arranged sequentially along a first direction on the assembly platform. This integrates the energy storage cabinet, transformer equipment, and combiner cabinet onto a single assembly platform. The functional modules are no longer designed independently but form an organic whole. Installation and commissioning of each device are completed in the factory. Integrating the battery unit, energy storage cabinet, transformer equipment, and combiner cabinet into a single assembly platform reduces on-site wiring workload and commissioning difficulty compared to existing technologies that separate functional modules, further shortening commissioning and delivery time. It should also be emphasized that by dividing the assembly platform into different functional units, it facilitates independent maintenance of each module, which is beneficial for after-sales maintenance.

[0006] In addition, the energy storage power station according to this utility model may also have the following additional technical features:

[0007] In some embodiments of this utility model, the plurality of energy storage cabinets are divided into at least two groups, and the at least two groups of energy storage cabinets are arranged sequentially along a second direction, the second direction intersecting with the first direction; each group of energy storage cabinets includes at least two energy storage cabinets, and the at least two energy storage cabinets in each group are arranged sequentially along the first direction.

[0008] In some embodiments of this utility model, the plurality of energy storage cabinets are divided into two groups, the two groups of energy storage cabinets are spaced apart along the second direction, and define a first maintenance channel; along the first direction, the first maintenance channel is arranged opposite to the combiner cabinet.

[0009] In some embodiments of this utility model, in each group of energy storage cabinets, along the first direction, the energy storage cabinet and the combiner cabinet that are closest to the combiner cabinet are spaced apart and define a second maintenance channel. The combiner cabinet has an operating surface on the side facing the second maintenance channel.

[0010] In some embodiments of this utility model, the transformer equipment includes a step-up transformer and a switch cabinet that are electrically connected. Along the first direction, the switch cabinet is located on the side of the step-up transformer away from the combiner cabinet. The combiner cabinet is electrically connected to the step-up transformer, and the switch cabinet is used to connect to AC power.

[0011] In some embodiments of this utility model, the energy storage substation further includes a communication control cabinet and an auxiliary power supply cabinet, which are installed in the second assembly area;

[0012] Along the second direction, the communication control cabinet and the auxiliary power supply cabinet are respectively located on both sides of the combiner cabinet. The communication control cabinet is electrically connected to the energy storage cabinet, the auxiliary power supply cabinet and the switch cabinet. The auxiliary power supply cabinet is also electrically connected to the energy storage cabinet and the switch cabinet.

[0013] In some embodiments of this utility model, the plurality of energy storage cabinets are divided into two groups, and the two groups of energy storage cabinets are spaced apart along the second direction, defining a heat dissipation channel.

[0014] In some embodiments of this utility model, the transformer equipment includes a step-up transformer and a switch cabinet that are electrically connected. Along the first direction, the switch cabinet is located on the side of the step-up transformer away from the combiner cabinet. The combiner cabinet is electrically connected to the step-up transformer, and the switch cabinet is used to connect to AC power.

[0015] In some embodiments of this utility model, it further includes: an auxiliary power supply cabinet located on the side of the step-up transformer away from the combiner cabinet; the auxiliary power supply cabinet and the switch cabinet are arranged sequentially in the third assembly area along the second direction, and the auxiliary power supply cabinet is also electrically connected to the energy storage cabinet and the switch cabinet; a communication control cabinet is arranged sequentially in the second assembly area along the second direction, and the communication control cabinet and the combiner cabinet have the heat dissipation channel between them; the communication control cabinet is electrically connected to the energy storage cabinet, the auxiliary power supply cabinet and the switch cabinet respectively.

[0016] In some embodiments of this utility model, the energy storage cabinet, the communication control cabinet, and the combiner cabinet are provided with an operating surface on the side opposite to the heat dissipation channel. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0018] Figure 1 This is a schematic diagram of the structure of an energy storage power station according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of an energy storage power station according to another embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the assembly platform according to an embodiment of the present invention.

[0021] The labels in the attached diagram are as follows:

[0022] 100. Energy storage power station;

[0023] 10. Assembly platform; 11. First assembly area; 12. Second assembly area; 13. Third assembly area;

[0024] 20. Energy storage cabinet;

[0025] 30. Transformer equipment; 31. Step-up transformer; 32. Switchgear;

[0026] 40. Combiner cabinet;

[0027] 50. Communication control cabinet;

[0028] 60. Auxiliary power supply cabinet;

[0029] 101. First maintenance passage; 102. Second maintenance passage; 103. Heat dissipation passage; 104. Operating surface;

[0030] X - First direction; Y - Second direction. Detailed Implementation

[0031] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0032] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0033] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure rotates, then an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0036] According to embodiments of this application, such as Figure 1 and Figure 3 As shown, an energy storage power station 100 is provided, which includes an assembly platform 10, multiple energy storage cabinets 20, transformer equipment 30 and combiner cabinet 40.

[0037] Specifically, the assembly platform 10 serves as the installation foundation for the various components of the energy storage power station 100. The assembly platform 10 employs a high-strength steel structure, possessing excellent load-bearing capacity and stability, capable of withstanding the weight of each device and vibrations during operation. The upper surface of the assembly platform 10 can be formed into a planar structure by installing plate-like components, or into a frame structure by installing multiple load-bearing metal supports. The assembly platform 10 is positioned along a first direction (parallel to the horizontal direction), and its surface is divided into a first assembly area 11, a second assembly area 12, and a third assembly area 13, arranged sequentially to facilitate the partitioned installation of different components. Multiple energy storage cabinets 20 are installed in the first assembly area 11. Each energy storage cabinet 20 is an independent cabinet structure, internally containing electrically connected battery cells and a converter. The converter (PCS) is integrated within the energy storage cabinet 20 and is used to convert DC to AC power. A transformer 30 is installed in the third assembly area 13 for grid connection, possessing the function of converting low-voltage electricity to high-voltage electricity to meet grid connection requirements. The combiner cabinet 40 is installed in the second assembly area 12. The combiner cabinet 40 is electrically connected to both the transformer equipment 30 and the converter. The output terminal of the converter is connected to the input terminal of the combiner cabinet 40 via a cable, collecting the AC power converted by the converter into the combiner cabinet 40. The output terminal of the combiner cabinet 40 is connected to the input terminal of the transformer equipment 30, which then steps up the low-voltage electricity before connecting it to the power grid.

[0038] In this embodiment, a battery unit can be composed of at least one of a battery module, a battery pack, and a battery cluster. A battery module is formed by arranging and fixing multiple battery cells to form an independent module. If the battery unit is a battery pack, the battery pack includes a housing and one or more battery cell assemblies, which are housed within the housing. The battery cell assembly can be a battery module, which can be housed within the housing by fixing the battery module within the housing. Exemplarily, a battery unit can be a battery cluster, which is an independent unit formed by combining multiple battery packs in series, parallel, or series-parallel configurations, and equipped with necessary management components (such as cell voltage acquisition lines, temperature sensors, etc.).

[0039] In this embodiment, as Figure 1 and Figure 3 As shown, the first assembly area 11, the second assembly area 12, and the third assembly area 13 on the assembly platform 10 are arranged sequentially along the first direction, forming an orderly whole. Multiple energy storage cabinets 20 are arranged side-by-side within the first assembly area 11 for easy heat dissipation and maintenance. The combiner cabinet 40 is located between the first assembly area 11 and the third assembly area 13, close to the first assembly area 11. This positioning shortens the connection distance between the combiner cabinet 40 and the energy storage cabinets 20, reduces the wiring distance between components, and decreases the amount of cable used and energy loss.

[0040] The energy storage power station 100 proposed in this application integrates the energy storage cabinet 20, transformer equipment 30, and combiner cabinet 40 onto a single assembly platform 10. The functional modules are no longer designed independently but form an organic whole. Compared to traditional solutions, this significantly improves system integration. Furthermore, by completing the installation and commissioning of each device in the factory, and integrating the battery unit, energy storage cabinet 20, transformer equipment 30, and combiner cabinet 40 into a single assembly platform 10, compared to existing technologies that separate functional modules, the amount of on-site wiring work and commissioning difficulty are reduced, some on-site testing items are eliminated, and commissioning and delivery time is further shortened. It should also be emphasized that by dividing the assembly platform 10 into different functional units, it is beneficial to perform independent maintenance on each functional module, which is advantageous for after-sales maintenance.

[0041] In some embodiments, such as Figure 1As shown, multiple energy storage cabinets 20 are divided into at least two groups, each group including at least two energy storage cabinets 20 arranged sequentially along a first direction. Multiple groups of energy storage cabinets 20 are arranged sequentially along a second direction. The converter output of each group of energy storage cabinets 20 is connected to the busbar within the group via a branch cable, and then connected to the combiner cabinet 40 via a main cable. The first direction is perpendicular to the second direction. In this embodiment, multiple energy storage cabinets 20 are divided into at least two groups. The energy storage cabinets 20 within each group are arranged linearly along the first direction (e.g., longitudinally), and multiple groups extend along a second direction (e.g., laterally) intersecting the first direction. This "matrix" layout can be flexibly adjusted according to the site shape, reducing space waste through row and column distribution. Each group of energy storage cabinets 20, as an independent unit, can have its internal electrical connections and structural assembly completed in the factory. On-site installation only requires positioning by group. Furthermore, each group is arranged along a fixed direction, and cable trays, grounding systems, etc., can be arranged according to standardized paths, reducing on-site wiring workload. When a fault occurs in the energy storage cabinet 20 of a certain group (such as the battery cell overheating), the connection between that group and the combiner cabinet 40 can be cut off without affecting the operation of other groups, thereby realizing zoned monitoring and maintenance and reducing after-sales maintenance costs.

[0042] In some embodiments, such as Figure 1 As shown, multiple energy storage cabinets 20 are divided into two groups, with the two groups of energy storage cabinets 20 spaced apart along a second direction, defining a first maintenance passage 101. In this embodiment, inspection doors are respectively provided on opposite sides of the energy storage cabinets 20 along the second direction. Therefore, by forming the first maintenance passage 101, two inspection doors can be accommodated simultaneously, facilitating maintenance and improving ventilation and heat dissipation. Specifically, one inspection door of the energy storage cabinet 20 faces inward into the first maintenance passage 101, and the other inspection door of the energy storage cabinet 20 faces outward from the energy storage power station 100. This arrangement allows both inspection doors to be opened, thereby enabling dual-sided maintenance of the energy storage cabinets 20. Compared to the traditional single-sided maintenance layout, although the space occupied by the spaced groups increases the passage area, the bidirectional inspection door design expands the maintenance surface of a single group of energy storage cabinets 20 from one side to two sides, effectively improving maintenance efficiency. Furthermore, along the first direction, the first maintenance channel 101 is arranged opposite to the combiner cabinet 40, so that the side of the combiner cabinet 40 facing the first maintenance channel 101 also has available maintenance space, which facilitates the maintenance of the combiner cabinet 40.

[0043] In some embodiments, such as Figure 1As shown, in each group of energy storage cabinets, along the first direction, energy storage cabinets 20 and 40, which are closest to the combiner cabinet, are spaced apart, defining a second maintenance passage 102. The combiner cabinet 40 has an operating surface 104 on its side facing the second maintenance passage 102. The second maintenance passage 102 provides a dedicated, independent operating space for the operating surface 104 of the combiner cabinet 40 (such as control panels, wiring terminals, and inspection doors). Operators can directly perform parameter settings, line maintenance, or troubleshooting within the passage, avoiding spatial overlap with maintenance work on the energy storage cabinet 20 and improving operational efficiency.

[0044] By setting up the first maintenance channel 101 and the second maintenance channel 102, a path is provided for airflow. When the electrical components in the combiner cabinet 40 and the energy storage cabinet 20 generate heat during operation, the airflow in the first maintenance channel 101 and the second maintenance channel 102 can assist in heat dissipation, prevent the equipment from degrading or malfunctioning due to overheating, and extend the service life of the equipment.

[0045] It should be noted that the width of the first maintenance channel 101 and the second maintenance channel 102 can be flexibly set according to the equipment maintenance needs (such as reserving an operating distance of 1.2-1.5 meters), which meets the maintenance requirements while avoiding space waste.

[0046] In some embodiments, such as Figure 1 As shown, the transformer equipment 30 includes a step-up transformer 31 and a switch cabinet 32 ​​that are electrically connected. Along the first direction, the switch cabinet 32 ​​is located on the side of the step-up transformer 31 away from the combiner cabinet 40. The combiner cabinet 40 is electrically connected to the step-up transformer 31, and the switch cabinet 32 ​​is used for grid connection with the power grid.

[0047] In detail, combiner cabinet 40 is a low-voltage combiner cabinet. After the battery unit in energy storage cabinet 20 converts DC power to AC power through the converter, the output voltage of the converter PCS is 0.4KV to 1KV (e.g., 690 volts) AC power, which is transmitted to combiner cabinet 40 through low-voltage cable. The AC power is collected by combiner cabinet 40 and connected to the AC low-voltage port side (0.4KV to 1KV side) of step-up transformer 31. Step-up transformer 31 steps up the voltage to 10kV to 35kV high voltage power, which is then connected to the power grid through the circuit breaker of switch cabinet 32.

[0048] In this embodiment, as Figure 1As shown, the energy storage cabinet 20, combiner cabinet 40, step-up transformer 31, and switchgear 32 are arranged sequentially along the first direction, forming an energy transmission chain of "energy storage → combiner → step-up → grid connection". This layout progressively increases voltage from the low-voltage side (energy storage cabinet 20, combiner cabinet 40) to the high-voltage side (step-up transformer 31, switchgear 32), with each device arranged in functional order, reducing cable crossings and energy losses. Each device is distributed in a functional module format; for example, the energy storage cabinet 20 serves as an energy storage unit, the combiner cabinet 40 as a low-voltage side aggregation unit, and the transformer equipment 30 (step-up transformer 31 + switchgear 32) as a high-voltage grid connection unit, each independent yet interconnected. When expansion is needed, groups or quantities can be added to the energy storage cabinet 20 area, while the transformer equipment 30 area can be upgraded separately according to grid connection requirements, offering high flexibility for space expansion without requiring large-scale adjustments to the overall layout. Low-voltage cables are concentrated between the energy storage cabinet 20 and the combiner cabinet 40, while high-voltage cables are concentrated between the transformer and the switch cabinet 32, forming a "low-voltage cable area" and a "high-voltage cable area" in space. This avoids maintenance difficulties caused by mixed cables. At the same time, cable trays, cable troughs, etc. can be used to fix the cables in different areas, improving the standardization and safety of cable management.

[0049] It should also be noted that, in this embodiment, the energy storage cabinet 20 is provided with a first operating surface 104 on the outer circumferential side of the energy storage power station 100, and a second operating surface 104 is provided on the side facing the first maintenance passage 101. Both the first and second operating surfaces 104 include a control panel, wiring terminals, and an inspection door, etc. The control panel or wiring terminals are directly integrated into the inspection door, realizing dual-sided operation or maintenance of the energy storage cabinet 20. Furthermore, the combiner cabinet 40 is provided with an operating surface 104 on the side facing the second maintenance passage 102. Similarly, this operating surface 104 includes a control panel, wiring terminals, and an inspection door, etc. The control panel or wiring terminals can also be directly integrated into the inspection door, realizing one-sided operation and maintenance of the combiner cabinet. Furthermore, the step-up transformer 31 and the switchgear 32 are arranged along the first direction. The step-up transformer 31 and the switchgear 32 are respectively provided with operating surfaces 104 on the outer circumferential side of the energy storage power station 100. The operating surfaces 104 of the step-up transformer 31 and the switchgear 32 include control panels, wiring terminals and maintenance doors, etc., to realize the operation and maintenance of the step-up transformer 31 and the switchgear 32.

[0050] Furthermore, such as Figure 1 and Figure 3As shown, the energy storage power station 100 also includes a communication control cabinet 50 and an auxiliary power supply cabinet 60, which are installed in the second assembly area 12. Along the second direction, the communication control cabinet 50 and the auxiliary power supply cabinet 60 are respectively located on both sides of the combiner cabinet 40. The communication control cabinet 50 is electrically connected to the energy storage cabinet 20, the auxiliary power supply cabinet 60, and the switch cabinet 32, while the auxiliary power supply cabinet 60 is also electrically connected to the energy storage cabinet 20. This arrangement integrates the three major functions of control, combiner, and power supply in the second assembly area 12, forming a vertical functional chain with the energy storage cabinet 20 in the first assembly area 11 and the transformer equipment 30 in the third assembly area 13, presenting a three-dimensional collaborative architecture of "control-energy-voltage boost" in space. Firstly, to achieve the shortest path design for cable connections, the communication cables between the communication control cabinet 50 and the energy storage cabinet 20 can be laid along the second direction to the first assembly area 11, while the power supply cables between the auxiliary power supply cabinet 60 and the energy storage cabinet 20 are horizontally connected to the first assembly area 11, avoiding crossing other functional areas and reducing cable crossings. Secondly, along the first direction, the second maintenance channel 102 formed by the energy storage cabinet 20 and the combiner cabinet 40 simultaneously serves the communication control cabinet 50, the combiner cabinet 40, and the auxiliary power supply cabinet 60 in the second assembly area 12. The cabinet door of the communication control cabinet 50 faces the second maintenance channel 102, allowing for direct module replacement; the cooling fan of the auxiliary power supply cabinet 60 is positioned facing the second maintenance channel 102, allowing maintenance personnel to clean the fan filter within the channel.

[0051] In detail, the energy storage cabinet 20 is equipped with a liquid cooling unit inside to dissipate heat from the battery cells, converters, and other components inside the energy storage cabinet 20. The auxiliary power supply cabinet 60 is electrically connected to the energy storage cabinet 20 to supply power to the liquid cooling unit of the energy storage cabinet 20, and also to provide power to the secondary control circuit of the energy storage power station 100 system. The secondary control circuit includes various control circuits such as control, protection, and indication circuits. Examples include the PLC controller and switch in the communication control cabinet 50; the relay protection devices and circuit breaker operating mechanisms in the switch cabinet 32; and the status indicator lights and instrument panels of various devices.

[0052] The communication control cabinet 50 enables interconnection between different devices. Specifically, the communication control cabinet 50 communicates with the BMS (Battery Management System) in the energy storage cabinet 20 via CAN bus to collect data such as battery voltage, temperature, and SOC; the communication control cabinet 50 communicates with the converter (PCS) to issue charging and discharging commands; and the communication control cabinet 50 communicates with the switch cabinet 32 ​​to transmit switch status, protection signals, etc.

[0053] In some embodiments, such as Figure 2 and Figure 3As shown, multiple energy storage cabinets 20 are divided into two groups, with the two groups of energy storage cabinets 20 spaced apart along the second direction, defining a heat dissipation channel 103. It should be noted that the heat dissipation channel 103 is only used for ventilation and heat dissipation of the two groups of energy storage cabinets 20, and the width of the heat dissipation channel 103 is smaller than the width of the first maintenance channel in the above scheme. That is, the heat dissipation channel 103 is only used for ventilation and heat dissipation and does not support personnel passage. Its width can be set to 0.1m to 0.5m. For example, each group of 3 energy storage cabinets 20 is arranged along the first direction (longitudinal direction), with a 0.3m gap between the two groups along the second direction, forming a "back-to-back" heat dissipation structure. This arrangement makes the overall structural dimensions of the energy storage power station 100 more compact, suitable for installation areas with relatively limited space.

[0054] Furthermore, such as Figure 2 As shown, the transformer equipment 30 includes a step-up transformer 31 and a switch cabinet 32 ​​electrically connected. Along the first direction, the switch cabinet 32 ​​is located on the side of the step-up transformer 31 away from the combiner cabinet 40. The combiner cabinet 40 is electrically connected to the step-up transformer 31, and the switch cabinet 32 ​​is used for grid connection. In this embodiment, the energy storage cabinet 20, combiner cabinet 40, step-up transformer 31, and switch cabinet 32 ​​are arranged sequentially along the first direction to form an energy transmission chain of "energy storage → combiner → step-up → grid connection".

[0055] Furthermore, such as Figure 2 and Figure 3 As shown, the auxiliary power supply cabinet 60 is installed in the third assembly area 13. The auxiliary power supply cabinet 60 is located on the side of the step-up transformer 31 away from the combiner cabinet 40, and along the second direction on the side of the switch cabinet 32. The auxiliary power supply cabinet 60 is electrically connected to the energy storage cabinet 20. The communication control cabinet 50 is installed in the second assembly area 12, and along the second direction on the side of the combiner cabinet 40. Along the first direction, the communication control cabinet 50 is positioned opposite and adjacent to one set of energy storage cabinets 20, and the combiner cabinet 40 is positioned opposite and adjacent to another set of energy storage cabinets 20. The communication control cabinet 50 is electrically connected to the energy storage cabinet 20, the auxiliary power supply cabinet 60, and the switch cabinet 32.

[0056] In this embodiment, as Figure 2 As shown, the spatial layout of the energy storage cabinet 20, communication control cabinet 50, combiner cabinet 40, step-up transformer 31, switch cabinet 32 ​​and auxiliary power supply cabinet 60 is more compact. The first and second maintenance passages located inside the energy storage power station 100 are eliminated. The energy storage cabinet 20, communication control cabinet 50, combiner cabinet 40, step-up transformer 31, switch cabinet 32 ​​and auxiliary power supply cabinet 60 are respectively provided with operating surfaces 104 on one side of the circumferential outer side of the energy storage power station 100. The operators and maintenance personnel perform maintenance and operation control on the outer casing of the energy storage power station 100.

[0057] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An energy storage power plant, characterized by, include: An assembly platform, along a first direction, has a first assembly area, a second assembly area, and a third assembly area arranged sequentially. Multiple energy storage cabinets are installed in the first assembly area, and each energy storage cabinet includes electrically connected battery cells and converters; A transformer is installed in the third assembly area, and the second end of the transformer is used to connect to AC power. A combiner cabinet is installed in the second assembly area, and the combiner cabinet is electrically connected to the first end of the transformer equipment and the converter respectively.

2. The energy storage power plant of claim 1, wherein, The multiple energy storage cabinets are divided into at least two groups, and the at least two groups of energy storage cabinets are arranged sequentially along a second direction, which intersects with the first direction; each group of energy storage cabinets includes at least two energy storage cabinets, and the at least two energy storage cabinets in each group are arranged sequentially along the first direction.

3. The energy storage power plant of claim 2, wherein, The multiple energy storage cabinets are divided into two groups, and the two groups of energy storage cabinets are spaced apart along the second direction, defining a first maintenance channel; along the first direction, the first maintenance channel is arranged opposite to the combiner cabinet.

4. The energy storage power plant of claim 3, wherein, In each group of energy storage cabinets, along the first direction, the energy storage cabinets and the combiner cabinets that are closest to the combiner cabinets are spaced apart and define a second maintenance channel. The combiner cabinets have an operating surface on the side facing the second maintenance channel.

5. The energy storage power plant of any one of claims 2 to 4, wherein, The transformer equipment includes a step-up transformer and a switch cabinet that are electrically connected. Along the first direction, the switch cabinet is located on the side of the step-up transformer away from the combiner cabinet. The combiner cabinet is electrically connected to the step-up transformer, and the switch cabinet is used to connect to AC power.

6. The energy storage power plant of claim 5, wherein, The energy storage power station also includes a communication control cabinet and an auxiliary power supply cabinet, which are installed in the second assembly area; Along the second direction, the communication control cabinet and the auxiliary power supply cabinet are respectively located on both sides of the combiner cabinet. The communication control cabinet is electrically connected to the energy storage cabinet, the auxiliary power supply cabinet and the switch cabinet. The auxiliary power supply cabinet is also electrically connected to the energy storage cabinet and the switch cabinet.

7. The energy storage power plant of claim 2, wherein, The multiple energy storage cabinets are divided into two groups, and the two groups of energy storage cabinets are spaced apart along the second direction, defining a heat dissipation channel.

8. The energy storage power plant of claim 7, wherein, The transformer equipment includes a step-up transformer and a switch cabinet that are electrically connected. Along the first direction, the switch cabinet is located on the side of the step-up transformer away from the combiner cabinet. The combiner cabinet is electrically connected to the step-up transformer, and the switch cabinet is used to connect to AC power.

9. The energy storage power plant of claim 8, wherein, Also includes: An auxiliary power supply cabinet is located on the side of the step-up transformer away from the combiner cabinet; along the second direction, the auxiliary power supply cabinet and the switch cabinet are arranged in sequence in the third assembly area, and the auxiliary power supply cabinet is also electrically connected to the energy storage cabinet and the switch cabinet; A communication control cabinet is arranged sequentially with the combiner cabinet in the second assembly area along the second direction, and a heat dissipation channel is provided between the communication control cabinet and the combiner cabinet; the communication control cabinet is electrically connected to the energy storage cabinet, the auxiliary power supply cabinet and the switch cabinet respectively.

10. The energy storage power plant of claim 9, wherein, The energy storage cabinet, the communication control cabinet, and the combiner cabinet have operating surfaces on the side opposite to the heat dissipation channel.

Images