An energy storage power plant system

Abstract

The utility model provides a kind of energy storage power station system, belong to electric power facility technical field, including energy storage battery unit and current conversion booster unit;Energy storage battery unit has first air inlet towards second direction and first air outlet towards first direction;Current conversion booster unit is opposited and interval arranged along first direction with energy storage battery unit;Current conversion booster unit has second air inlet towards first direction and second air outlet;Second air inlet and second air outlet are respectively arranged in two different side surfaces of current conversion booster unit, and second air inlet is away from first air outlet.The utility model optimizes the position of first air inlet, first air outlet, second air inlet and second air outlet by reasonable design, and makes energy storage battery unit and current conversion booster unit opposited and interval arranged along first direction, effectively avoids the mutual interference of airflow between equipment under the premise of making the overall land area of energy storage power station system optimal, optimizes airflow organization, improves heat dissipation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of power facility technology, and more specifically, relates to an energy storage power station system. Background Technology

[0002] The main equipment in a large-scale energy storage power station includes energy storage battery units and converter booster units. Due to the large number of devices, airflow between them can interfere with each other, causing temperature drooping. To avoid these problems, the usual method is to increase the distance between the devices. However, this results in a large overall footprint for the energy storage power station, long and messy connecting cables, high losses, and high costs. Utility Model Content

[0003] The purpose of this utility model is to provide an energy storage power station system that aims to solve the technical problems of mutual interference in airflow organization between equipment and large footprint in existing energy storage power stations.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an energy storage power station system, comprising:

[0005] An energy storage battery unit; the left-right direction of the energy storage battery unit is defined as a first direction, and the front-back direction of the energy storage battery unit is defined as a second direction; the energy storage battery unit has a first air inlet facing the second direction and a first air outlet facing the first direction;

[0006] A converter booster unit is positioned opposite and spaced apart from the energy storage battery unit along the first direction, and is electrically connected to the energy storage battery unit; the converter booster unit has a second air inlet and a second air outlet facing the first direction; the second air inlet and the second air outlet are respectively located on two different sides of the converter booster unit, and the second air inlet is away from the first air outlet.

[0007] In one possible implementation, two energy storage battery units are arranged side by side along the first direction, and the vertical center line of the side-by-side surface of the energy storage battery units is defined as the first reference line. The two energy storage battery units are arranged in a centrally symmetrical manner with respect to the first reference line.

[0008] In one possible implementation, two energy storage battery units are arranged side by side along the first direction to form an energy storage module; the energy storage modules are spaced apart along the first direction, and the converter booster unit is located between the two sets of energy storage modules;

[0009] The two sets of energy storage modules and one converter booster unit form a first energy storage sub-unit, and the energy storage power station system has at least one set of the first energy storage sub-unit.

[0010] In some embodiments, the four energy storage battery units in each group of the first energy storage sub-units are electrically connected to the converter booster unit through a first DC line group, which extends along the first direction.

[0011] In some embodiments, the first energy storage sub-unit is in two groups, which are arranged opposite each other and spaced apart along the second direction; the two groups of the first energy storage sub-units form a first energy storage unit, and the energy storage power station system has at least one group of the first energy storage unit;

[0012] The two converter booster units in the first energy storage unit are electrically connected via a first AC line group; the first AC line group extends along the first direction.

[0013] In one group of the first energy storage units, the first AC line group is located between the two groups of the first energy storage sub-units; the first DC line group is located on the side of the corresponding first energy storage sub-unit away from the first AC line group.

[0014] In some embodiments, the first energy storage unit has multiple groups and is distributed in a rectangular array.

[0015] In one possible implementation, two energy storage battery units are arranged side by side along the first direction to form an energy storage module; a group of the energy storage modules and one converter booster unit form a second energy storage sub-unit; the energy storage power station system has at least one group of the second energy storage sub-unit.

[0016] The two energy storage battery units in each group of the second energy storage subunits are electrically connected to the converter booster unit through a second DC line group, which extends along the first direction.

[0017] In some embodiments, the second energy storage subunit is in two groups, and the two converter booster units in the two groups of the second energy storage subunit are arranged facing each other and spaced apart along the first direction, and the air outlets of the two second air outlets are in opposite directions;

[0018] Two sets of the second energy storage sub-units form a second energy storage unit, and the energy storage power station system has at least one set of the second energy storage unit;

[0019] The two converter booster units in the second energy storage unit are electrically connected via a second AC line group.

[0020] In some embodiments, the second energy storage unit has multiple sets and is distributed in a rectangular array;

[0021] Among the multiple sets of the second energy storage units arranged along the second direction, multiple converter booster units are electrically connected through the second AC line group, and the second AC line group extends along the second direction.

[0022] In one possible implementation, the converter booster unit includes:

[0023] Pressurization chamber; and

[0024] An energy storage inverter unit is arranged at intervals from the booster transformer compartment along the first direction; the energy storage inverter unit includes a plurality of energy storage inverter compartments arranged in parallel along the second direction;

[0025] Each of the energy storage inverter modules has a second air inlet on the side facing the booster transformer module, and each of the energy storage inverter modules has a second air outlet on the side facing away from the booster transformer module.

[0026] The beneficial effects of the energy storage power station system provided by this utility model are as follows: the energy storage battery unit and the converter booster unit are arranged facing each other and spaced apart along the first direction, and there is no staggered layout between the energy storage battery unit and the converter booster unit, which can reduce the overall footprint of the energy storage power station system and optimize the internal wiring layout.

[0027] The energy storage battery unit takes in cold air in the second direction and exits hot air in the first direction. Its cold air intake channel and hot air outlet channel do not overlap. The second air inlet and the second air outlet of the converter booster unit are located on two different sides. Its cold air intake channel and hot air outlet channel also do not overlap. Moreover, the second air inlet of the converter booster unit is away from the first air outlet of the energy storage battery unit, which can prevent hot air from mixing into the cold air intake channel and affecting heat dissipation.

[0028] Compared with existing technologies, the energy storage power station system of this utility model, by rationally designing the positions of the first air inlet, the first air outlet, the second air inlet and the second air outlet, and by arranging the energy storage battery unit and the converter booster unit to be directly opposite each other and spaced apart along the first direction, effectively avoids mutual interference of airflow between equipment, optimizes airflow organization and improves heat dissipation efficiency while optimizing the overall footprint of the energy storage power station system. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A three-dimensional structural schematic diagram of the energy storage power station system provided in the first embodiment of this utility model;

[0031] Figure 2 for Figure 1A schematic diagram of the planar structure of the energy storage power station system in the image;

[0032] Figure 3 for Figure 1 A schematic diagram of the planar structure of the first energy storage unit in the energy storage power station system;

[0033] Figure 4 A three-dimensional structural diagram of an energy storage power station system provided in the second embodiment of this utility model;

[0034] Figure 5 for Figure 4 A schematic diagram of the planar structure of the energy storage power station system in the image;

[0035] Figure 6 for Figure 4 A schematic diagram of the planar structure of the second energy storage unit in the energy storage power station system;

[0036] Figure 7 A three-dimensional structural schematic diagram of the converter booster unit of the energy storage power station system provided in this embodiment of the utility model;

[0037] Figure 8 A three-dimensional structural diagram of the energy storage module of the energy storage power station system provided in this embodiment of the utility model.

[0038] In the picture:

[0039] 1. Energy storage battery unit; 11. Battery compartment; 12. Cooling chamber; 13. First air inlet; 14. First air outlet;

[0040] 2. Variable frequency booster unit; 21. Booster transformer compartment; 22. Energy storage inverter compartment; 23. Second air inlet; 24. Second air outlet; 25. Third air inlet; 26. Third air outlet;

[0041] 3. First energy storage subunit; 31. First DC line group; 32. First AC line group;

[0042] 4. First energy storage unit;

[0043] 5. Second energy storage subunit; 51. Second DC line group; 52. Second AC line group;

[0044] 6. Second energy storage unit. Detailed Implementation

[0045] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0046] Please refer to the following: Figures 1 to 8 The energy storage power station system provided by this utility model will now be described. The energy storage power station system includes an energy storage battery unit 1 and a converter booster unit 2.

[0047] The left-right direction of the energy storage battery unit 1 is defined as the first direction, and the front-back direction of the energy storage battery unit 1 is defined as the second direction; the energy storage battery unit 1 has a first air inlet 13 facing the second direction and a first air outlet 14 facing the first direction.

[0048] The converter booster unit 2 and the energy storage battery unit 1 are arranged opposite each other along the first direction and are spaced apart, and are electrically connected to the energy storage module; the converter booster unit 2 has a second air inlet 23 and a second air outlet 24 facing the first direction; the second air inlet 23 and the second air outlet 24 are respectively located on two different sides of the converter booster unit 2, and the second air inlet 23 is away from the first air outlet 14.

[0049] It should be noted that the orientations or positional relationships indicated by "front," "rear," "left," and "right" in this embodiment are based on the orientations of the energy storage battery unit 1 and the converter booster unit 2. Both the energy storage battery unit 1 and the converter booster unit 2 are cuboid structures, with the front of the unit facing "front," the back of the unit facing "rear," and the two sides of the unit facing "left" and "right," respectively. Therefore, the front-back direction, i.e., the second direction, defined in this embodiment refers to the direction between the front and back of the unit (i.e., the direction perpendicular to the front and back), and the left-right direction, i.e., the first direction, refers to the direction between the two sides of the unit (i.e., the direction perpendicular to the two sides).

[0050] Figure 2 , Figure 3 , Figure 5 and Figure 6 The layout structure of the energy storage power station system is shown. In the figure, the arrows indicate the direction of airflow. Specifically, the arrows pointing towards the generator are the air intake direction, and the arrows pointing away from the generator are the air outlet direction.

[0051] Reference Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 8 The energy storage battery unit 1 has a first air inlet 13 on the front and a first air outlet 14 on the side, allowing cold air to enter from the front and hot air to exit from the side. (Refer to...) Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7The converter booster unit 2 has a second air inlet 23 and a second air outlet 24 on two different sides, with cold air entering from one side and hot air exiting from the other. It should be noted that the converter booster unit 2 also has a third air inlet 25 and a third air outlet 26 on the front and back (this can be understood as the booster transformer compartment 21 having a third air inlet 25 and a third air outlet 26 on both the front and back). However, the third air outlet 26 is located above the third air inlet 25 and to the side of the second air inlet 23. Figure 7 As shown, the air outlet 26 is oriented diagonally upward, so it will not interfere with the air intake paths of the second air inlet 23 and the third air inlet 25.

[0052] Energy storage battery unit 1 is used to install energy storage batteries and provide energy storage power; converter boost unit 2 is used to convert the DC power output by energy storage battery unit 1 into AC power and boost the voltage; it should be noted that energy storage battery unit 1 and converter boost unit 2 are connected by DC line group, and multiple converter boost units 2 are connected by AC line group.

[0053] The energy storage power station system provided by this utility model has an energy storage battery unit 1 and a converter booster unit 2 facing each other and spaced apart along a first direction. The energy storage battery unit 1 and the converter booster unit 2 do not have an interleaved layout, which can reduce the overall footprint of the energy storage power station system and optimize the internal wiring layout. The energy storage battery unit 1 takes in cold air along a second direction and exits hot air along a first direction. Its cold air intake channel and hot air outlet channel do not overlap. The second air inlet 23 and the second air outlet 24 of the converter booster unit 2 are respectively located on two different sides. Its cold air intake channel and hot air outlet channel also do not overlap. Moreover, the second air inlet 23 of the converter booster unit 2 is away from the first air outlet 14 of the energy storage battery unit 1, which can prevent hot air from mixing into the cold air intake channel and affecting heat dissipation.

[0054] Compared with existing technologies, this embodiment effectively avoids mutual interference of airflow between devices, optimizes airflow organization, and improves heat dissipation efficiency, thereby reducing equipment temperature rise, avoiding temperature rise and depreciation problems, reducing the risk of equipment failure due to overheating, and improving the reliability and stability of the energy storage power station system.

[0055] It also avoids the problem of excessive land occupation caused by increasing the spacing between equipment in traditional methods, making the overall layout of energy storage power stations more compact and saving land resources.

[0056] Because of the compact layout between the energy storage module and the converter booster unit 2, the length of the connecting cables can be shortened, reducing the messy cable arrangement, cable loss, material usage and construction difficulty, thereby reducing the construction and operation costs of the energy storage power station.

[0057] In some embodiments, the aforementioned converter booster unit 2 can employ, as follows: Figure 7 The structure shown is described in the following document. Figure 7 The converter booster unit 2 includes a booster transformer compartment 21 and an energy storage inverter unit. The energy storage inverter unit is spaced apart from the booster transformer compartment 21 along a first direction; the energy storage inverter unit includes multiple energy storage inverter compartments 22 arranged side by side along a second direction; wherein, each energy storage inverter compartment 22 has the aforementioned second air inlet 23 on the side facing the booster transformer compartment 21, and each energy storage inverter compartment 22 has the aforementioned second air outlet 24 on the side facing away from the booster transformer compartment 21.

[0058] The step-up transformer compartment 21 is used to house the transformer; multiple energy storage inverter compartments 22 are spaced apart from the step-up transformer compartment 21 along a first direction, and the energy storage inverter compartments 22 are used to house energy storage inverters. It should be noted that the aforementioned step-up transformer compartment 21 can be understood as the outer casing of the transformer or the cabinet of the transformer; similarly, the energy storage inverter compartment 22 can be understood as the cabinet of the energy storage inverter.

[0059] The boost transformer compartment 21 and multiple energy storage inverter compartments 22 can be placed on the same base plate, which is laid flat on the ground. The boost transformer compartment 21 and multiple energy storage inverter compartments 22 are also electrically connected by cables.

[0060] It should be noted that the second air inlet 23 and the second air outlet 24 mentioned above refer to the air inlet and air outlet of the energy storage inverter compartment 22. Since the transformer is a high-heat device, the step-up transformer compartment 21 is also equipped with the third air inlet 25 and the third air outlet 26 mentioned above.

[0061] The third air outlet 26 is located above the third air inlet 25, such as Figure 7 As shown, the air outlet 26 is oriented diagonally upward, so it will not interfere with the air intake paths of the second air inlet 23 and the third air inlet 25.

[0062] The booster transformer chamber 21 and multiple energy storage inverter chambers 22 are spaced apart along a first direction, providing air intake space for the energy storage inverter chambers 22. Preferably, the distance between the booster transformer chamber 21 and the energy storage inverter chambers 22 is greater than 1m. Cool air flows into the energy storage inverter chambers 22 from the second air inlet 23, providing a uniform cooling airflow for the energy storage inverter chambers 22. The second air outlet 24 on the side of the energy storage inverter chamber 22 ensures that hot air can be quickly discharged, preventing hot air backflow.

[0063] Multiple energy storage inverter modules 22 are arranged side-by-side along the second direction, which increases the inverter power and further optimizes space utilization, making the overall layout more compact. Moreover, the side-by-side arrangement of multiple energy storage inverter modules 22 allows the system to continue operating even if some inverter modules fail, improving the overall reliability and stability of the system.

[0064] The air intake side of each energy storage inverter compartment 22 faces the first direction, allowing cool air to enter each compartment evenly. This ensures that each compartment receives sufficient cooling airflow, avoiding local overheating caused by uneven airflow distribution and ensuring efficient cooling for each compartment, thus improving the overall heat dissipation performance of the system.

[0065] Moreover, the air intake side of each energy storage inverter compartment 22 is inlet air along the first direction, and the air outlet side of the energy storage battery unit 1 is outlet air along the second direction. The air intake path of the energy storage inverter compartment 22 and the air outlet path of the energy storage battery unit 1 do not interfere with each other and will not affect the air intake of the energy storage inverter compartment 22.

[0066] In some embodiments, the energy storage module described above can be adopted as follows: Figure 8 The structure shown is described in the following document. Figure 8 Two energy storage battery units 1 are arranged side by side along the first direction. The vertical center line of the side-by-side surface of the two energy storage battery units 1 is defined as the first reference line. The two energy storage battery units 1 are arranged in a centrally symmetrical manner with respect to the first reference line.

[0067] The two sets of energy storage battery units 1 of the energy storage module are closely arranged, with no gap or a very small gap between their side-by-side surfaces. It should be noted that the first reference line is a dummy line, and the limitation of the first reference line is only to illustrate the positional layout of the two sets of energy storage battery units 1.

[0068] The two sets of energy storage battery units 1 are arranged in a centrally symmetrical layout, ensuring that both sets of energy storage battery units 1 have identical structures and are located in the same position, facilitating unified management and maintenance by operation and maintenance personnel. For example, inspection and maintenance work can be standardized based on symmetry, reducing maintenance time and costs. The symmetrical layout also meets the requirements of engineering design standards and aesthetics, making the overall layout of the energy storage power station more neat and coordinated, while also facilitating construction and installation.

[0069] Furthermore, the centrally symmetrical layout makes the airflow path more regular and symmetrical, simplifying the design of airflow organization. Designers can plan the positions of the air inlets and outlets uniformly based on symmetry, reducing airflow interference and making the airflow distribution of the energy storage battery unit 1 more uniform, avoiding local airflow accumulation or insufficiency. This helps to achieve a more balanced heat dissipation effect, ensuring that each energy storage battery unit 1 receives sufficient airflow cooling, thereby reducing the overall temperature rise.

[0070] Furthermore, the symmetrical layout makes the arrangement of the energy storage battery units 1 more compact and orderly, avoiding redundant space occupation that may be caused by the asymmetrical layout, thereby improving the space utilization rate of the energy storage power station.

[0071] Specifically, the energy storage battery unit 1 in this embodiment includes a battery compartment and a cooling compartment 12 arranged side by side. The first air inlet 13 described above is provided on the front and back of the cooling compartment 12, and the first air outlet 14 described above is provided on the side.

[0072] In some embodiments, the above-mentioned energy storage power station system may employ, for example... Figure 1 , Figure 2 and Figure 3 The structure shown is described in the following document. Figure 1 , Figure 2 and Figure 3 Two energy storage battery units 1 are arranged side by side along the first direction to form an energy storage module; two sets of energy storage modules are spaced apart along the first direction, and a converter booster unit 2 is located between the two sets of energy storage modules; the two sets of energy storage modules and the converter booster unit 2 form a first energy storage sub-unit 3, and the energy storage power station system has at least one set of first energy storage sub-unit 3.

[0073] like Figure 2 and Figure 3 As shown in the diagram, the area highlighted by the dashed line and labeled with the number 3 is the first energy storage sub-unit 3. It should be noted that... Figure 2 and Figure 3 The dashed box in the image is only for convenience in displaying the first energy storage sub-unit 3; the energy storage power station system does not actually have a dashed box.

[0074] The converter booster unit 2 serves two sets of energy storage modules simultaneously, that is, it serves four energy storage battery units 1. The four energy storage battery units 1 are connected in series and parallel according to the energy storage design requirements, and then connected to the converter booster unit 2.

[0075] By arranging the converter booster unit 2 between the two energy storage modules, the capacity of the energy storage equipment is increased while making full use of the space. The compact layout makes the overall structure of the energy storage power station more concentrated and reduces unnecessary space waste.

[0076] Two sets of energy storage modules and the converter booster unit 2 form the first energy storage sub-unit 3. This modular design allows the energy storage power station system to be flexibly expanded according to needs, simply by adding the first energy storage sub-unit 3. Moreover, the modular design facilitates maintenance and repair, as each first energy storage sub-unit 3 can operate and be maintained independently, reducing system downtime and improving the overall reliability and stability of the system.

[0077] Preferably, please refer to Figure 1 , Figure 2 and Figure 3 Based on the above implementation method, the four energy storage battery units 1 in each first energy storage subunit 3 are electrically connected to the converter booster unit 2 through the first DC line group 31, and the first DC line group 31 is extended and arranged along the first direction.

[0078] Specifically, the four energy storage battery units 1 are connected in series and parallel using the first DC line group 31 according to the energy storage design requirements, and then connected to the converter booster unit 2 using the first DC line group 31.

[0079] It should be noted that the first DC line group 31 extending along the first direction in this embodiment refers to the main line of the first DC line group 31 extending along the first direction. Of course, some branch lines of the first DC line group 31 will change direction and connect to the device.

[0080] The first DC line group 31 extends along the first direction, so that the electrical connection path between the four energy storage battery units 1 and the converter booster unit 2 is the shortest. The cable layout path is neat, avoiding cable messiness and redundancy, and reducing cable length and optimizing electrical connection, thereby reducing energy loss in the DC power transmission process.

[0081] In addition, the first DC line group 31 extends along the first direction, making the wiring design simpler and more standardized, making it easier for construction personnel to install according to unified standards, facilitating later maintenance and repair, and reducing maintenance time and costs.

[0082] Preferably, please refer to Figure 1 , Figure 2 and Figure 3 Based on the above implementation, the first energy storage sub-unit 3 consists of two groups, which are arranged opposite each other and spaced apart along the second direction; the two groups of first energy storage sub-units 3 form a first energy storage unit 4, and the energy storage power station system has at least one group of first energy storage units 4; the two converter booster units 2 in the first energy storage unit 4 are electrically connected through a first AC line group 32; the first AC line group 32 extends along the first direction; wherein, in one group of first energy storage units 4, the first AC line group 32 is located between the two groups of first energy storage sub-units 3; the first DC line group 31 is located on the side of the corresponding first energy storage sub-unit 3 away from the first AC line group 32.

[0083] Each first energy storage unit 4 can be understood as including two first energy storage sub-units 3 spaced apart along the second direction, wherein the two converter booster units 2 are connected through the first AC line group 32, while the four energy storage battery units 1 of one set of first energy storage sub-units 3 are not connected to the four energy storage battery units 1 of the other set of first energy storage sub-units 3 by cables.

[0084] By symmetrically arranging two first energy storage sub-units 3 into one first energy storage unit 4, multiple units can be distributed in a rectangular array, with no overlapping distribution between multiple units and no problem of excessive distance between them. This optimizes the layout of the energy storage power station system and reduces the overall footprint of the energy storage power station system.

[0085] Two sets of first energy storage sub-units 3 form the first energy storage unit 4. This modular design allows the energy storage power station system to be flexibly expanded according to needs, simply by adding the first energy storage unit 4. The newly added first energy storage unit 4 can be deployed according to the same design standards, ensuring system consistency and scalability.

[0086] It should be noted that the first AC line group 32 extending along the first direction in this embodiment refers to the main line of the first AC line group 32 extending along the first direction. Of course, some branch lines of the first AC line group 32 will change direction and connect to the device.

[0087] The first AC line group 32 extends along the first direction and is located between the two first energy storage sub-units 3, so that the AC connection path between the two converter booster units 2 is the shortest, reducing cable length and energy loss, and avoiding interference of cable layout with equipment layout.

[0088] The first DC line group 31 is located on the side of the corresponding first energy storage sub-unit 3 away from the first AC line group 32, which separates the wiring paths of DC and AC power, avoids electrical interference, and further improves energy transmission efficiency. Moreover, the layout paths of the first AC line group 32 and the first DC line group 31 are clear and regular, which makes it easy for construction personnel to install according to a unified standard and reduces construction difficulty.

[0089] Specifically, the first energy storage unit 4 can be arranged in multiple groups and distributed in a rectangular array.

[0090] In some embodiments, the above-mentioned energy storage power station system may also employ, for example... Figure 4 , Figure 5 and Figure 6 The structure shown is described in the following document. Figure 4 , Figure 5 and Figure 6 A set of energy storage modules and a converter booster unit 2 form a second energy storage sub-unit 5; the energy storage power station system has at least one set of second energy storage sub-units 5; the two sets of energy storage battery units 1 in each set of second energy storage sub-units 5 are electrically connected to the converter booster unit 2 through a second DC line group 51, and the second DC line group 51 is extended along the first direction.

[0091] like Figure 5 and Figure 6 As shown in the diagram, the area highlighted by the dashed line and labeled with the number 5 is the second energy storage sub-unit 5. It should be noted that... Figure 5 and Figure 6 The dashed box in the image is only for the convenience of displaying the second energy storage sub-unit 5; the energy storage power station system does not actually have a dashed box.

[0092] A set of energy storage modules and a converter booster unit 2 form a second energy storage subunit 5. This modular design allows the energy storage power station system to be flexibly expanded according to needs, simply by adding the second energy storage subunit 5. Moreover, the modular design facilitates maintenance and repair, as each second energy storage subunit 5 can operate and be maintained independently, reducing system downtime and improving the overall reliability and stability of the system.

[0093] Specifically, according to the energy storage design requirements, the two energy storage battery units 1 are connected in series and parallel using the second DC line group 51, and then connected to the converter booster unit 2 using the second DC line group 51.

[0094] It should be noted that the second DC line group 51 described in this embodiment extends along the first direction, which means that the main line of the second DC line group 51 extends along the first direction. Of course, some branch lines of the second DC line group 51 will change direction and connect to the device.

[0095] The second DC cable group 51 extends along the first direction, which minimizes the electrical connection path between the energy storage battery unit 1 and the converter booster unit 2. The cable layout is neat, avoiding cable clutter and redundancy, and reducing cable length and optimizing electrical connection, thereby reducing energy loss during DC power transmission.

[0096] In addition, the second DC line group 51 extends along the first direction, making the wiring design simpler and more standardized, making it easier for construction personnel to install according to unified standards, facilitating later maintenance and repair, and reducing maintenance time and costs.

[0097] Preferably, please refer to Figure 4 , Figure 5 and Figure 6 Based on the above implementation method, the second energy storage subunit 5 consists of two groups. The two converter booster units 2 in the two groups of second energy storage subunit 5 are arranged facing each other and spaced apart along the first direction, and the air outlets 24 of the two second air outlets are in opposite directions.

[0098] Two sets of second energy storage sub-units 5 form a second energy storage unit 6, and the energy storage power station system has at least one set of second energy storage units 6; the two converter booster units 2 in the second energy storage unit 6 are electrically connected through the second AC line group 52.

[0099] Each second energy storage unit 6 can be understood as including two second energy storage sub-units 5 spaced apart along the first direction, wherein the two converter booster units 2 are connected through the second AC line group 52, while the two energy storage battery units 1 of one set of second energy storage sub-units 5 are not connected to the two energy storage battery units 1 of the other set of second energy storage sub-units 5 by cables.

[0100] By symmetrically arranging two second energy storage sub-units 5 into one second energy storage unit 6, multiple units can be distributed in a rectangular array, with no overlapping distribution between multiple units and no problem of excessive distance between them. This optimizes the layout of the energy storage power station system and reduces the overall footprint of the energy storage power station system.

[0101] In addition, the two sets of second energy storage sub-units 5 form a second energy storage unit 6. This modular design allows the energy storage power station system to be flexibly expanded according to needs, simply by adding the second energy storage unit 6. The newly added second energy storage unit 6 can be deployed according to the same design standards, ensuring system consistency and scalability.

[0102] Preferably, based on the above embodiments, the second energy storage unit 6 has multiple sets and is distributed in a rectangular array; wherein, among the multiple sets of second energy storage units 6 arranged along the second direction, multiple converter booster units 2 are electrically connected through a second AC line group 52, and the second AC line group 52 extends along the second direction.

[0103] It should be noted that the second AC line group 52 described in this embodiment extends along the second direction, which means that the main line of the second AC line group 52 extends along the second direction. Of course, some branch lines of the second AC line group 52 will change direction and connect to the device.

[0104] The second AC line group 52 extends along the second direction and is located between the two second energy storage sub-units 5, so that the AC connection path between the two converter booster units 2 is minimized, reducing cable length and energy loss, and avoiding interference of cable layout with equipment layout.

[0105] The second DC cable group 51 extends along the first direction, and the second AC cable group 52 extends along the second direction, thus separating the wiring paths of DC and AC power, avoiding electrical interference, and further improving energy transmission efficiency. Furthermore, the clear and orderly routing paths of the second AC cable group 52 and the second DC cable group 51 facilitate installation by construction personnel according to uniform standards, reducing construction difficulty.

[0106] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An energy storage power station system, characterized in that, include: Energy storage battery unit (1); the left-right direction of the energy storage battery unit (1) is defined as the first direction, and the front-back direction of the energy storage battery unit (1) is defined as the second direction; the energy storage battery unit (1) has a first air inlet (13) facing the second direction and a first air outlet (14) facing the first direction. A converter booster unit (2) is positioned opposite and spaced apart from the energy storage battery unit (1) along the first direction and is electrically connected to the energy storage battery unit (1). The converter booster unit (2) has a second air inlet (23) and a second air outlet (24) facing the first direction. The second air inlet (23) and the second air outlet (24) are respectively located on two different sides of the converter booster unit (2), and the second air inlet (23) is away from the first air outlet (14).

2. The energy storage power station system as described in claim 1, characterized in that, Two energy storage battery units (1) are arranged side by side along the first direction. The vertical center line of the side-by-side surface of the two energy storage battery units (1) is defined as the first reference line. The two energy storage battery units (1) are arranged in a centrally symmetrical manner with respect to the first reference line.

3. The energy storage power station system as described in claim 1, characterized in that, Two energy storage battery units (1) are arranged side by side along the first direction to form an energy storage module; two sets of energy storage modules are spaced apart along the first direction, and the converter booster unit (2) is located between the two sets of energy storage modules; The two sets of energy storage modules and one converter booster unit (2) form a first energy storage subunit (3), and the energy storage power station system has at least one set of the first energy storage subunit (3).

4. The energy storage power station system as described in claim 3, characterized in that, The four energy storage battery units (1) in each group of the first energy storage sub-units (3) are electrically connected to the converter booster unit (2) through the first DC line group (31), which is laid out along the first direction.

5. The energy storage power station system as described in claim 4, characterized in that, The first energy storage sub-unit (3) consists of two groups, which are arranged opposite each other and spaced apart along the second direction; the two groups of the first energy storage sub-unit (3) form a first energy storage unit (4), and the energy storage power station system has at least one group of the first energy storage unit (4). The two converter booster units (2) in the first energy storage unit (4) are electrically connected through a first AC line group (32); the first AC line group (32) extends along the first direction; In one group of the first energy storage units (4), the first AC line group (32) is located between the two groups of the first energy storage sub-units (3); the first DC line group (31) is located on the side of the corresponding first energy storage sub-unit (3) away from the first AC line group (32).

6. The energy storage power station system as described in claim 5, characterized in that, The first energy storage unit (4) has multiple sets and is distributed in a rectangular array.

7. The energy storage power station system as described in claim 1, characterized in that, Two energy storage battery units (1) are arranged side by side along the first direction to form an energy storage module; a set of the energy storage modules and a converter booster unit (2) form a second energy storage subunit (5); the energy storage power station system has at least one set of the second energy storage subunit (5). The two energy storage battery units (1) in each group of the second energy storage sub-units (5) are electrically connected to the converter booster unit (2) through the second DC line group (51), which is laid out along the first direction.

8. The energy storage power station system as described in claim 7, characterized in that, The second energy storage subunit (5) consists of two groups. The two converter booster units (2) in the two groups of the second energy storage subunit (5) are arranged facing each other and spaced apart along the first direction, and the air outlets (24) of the two second air outlets are in opposite directions. Two sets of the second energy storage sub-units (5) form a second energy storage unit (6), and the energy storage power station system has at least one set of the second energy storage unit (6); The two converter booster units (2) in the second energy storage unit (6) are electrically connected via the second AC line group (52).

9. The energy storage power station system as described in claim 8, characterized in that, The second energy storage unit (6) has multiple sets and is distributed in a rectangular array; Among them, in the multiple sets of the second energy storage units (6) arranged along the second direction, multiple converter booster units (2) are electrically connected through the second AC line group (52), and the second AC line group (52) is extended along the second direction.

10. The energy storage power station system as described in claim 1, characterized in that, The converter booster unit (2) includes: The booster chamber (21); and The energy storage inverter unit is spaced apart from the booster transformer compartment (21) along the first direction; the energy storage inverter unit includes a plurality of energy storage inverter compartments (22) arranged in parallel along the second direction. Each of the energy storage inverter compartments (22) has a second air inlet (23) on the side facing the booster transformer compartment (21), and each of the energy storage inverter compartments (22) has a second air outlet (24) on the side facing away from the booster transformer compartment (21).

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