A power supply integrated compartment

Abstract

This utility model discloses an integrated power supply compartment, comprising: a container body, and a DC power supply module, a first voltage conversion module, a power distribution module, a converter, and an output module disposed inside the container body. The integrated compartment integrates the DC power supply module, the first voltage conversion module, the power distribution module, the converter, and the output module. The electrical energy generated by the photovoltaic modules and / or the electrical energy output from the DC power supply module is converted by the first voltage conversion module and then transmitted to the converter via the power distribution module. The converter converts the input electrical energy into AC power, which is then output to the external load via the output module. In this embodiment, the integrated compartment highly integrates DC and photovoltaic side equipment, providing a unified solution to customers' off-grid switching needs for photovoltaic systems. It can be used immediately after on-site wiring, avoiding the need for on-site wiring and debugging of multiple devices, and simplifying external wiring.

Description

Technical Field

[0001] This utility model relates to the field of energy storage system technology, and in particular to an integrated power supply compartment. Background Technology

[0002] In response to the development and application of existing energy storage systems, miniaturization and functional centralization have become a trend. Traditional energy storage systems require multiple independent functional cabinets to work together to complete their respective functions. Therefore, it is imperative to design an integrated cabinet that combines energy storage, photovoltaics, and DC / DC output functions.

[0003] Most current systems are DC systems, which integrate batteries and output DC power. When used by customers, external devices such as converters and transformers are required. When the project is adapted to photovoltaic or diesel engine systems, external voltage conversion modules (DCDC) and other equipment are also required, resulting in external wiring and space occupied by equipment. Utility Model Content

[0004] This utility model provides an integrated power supply compartment to solve the problem of complex external wiring of the integrated compartment.

[0005] According to one aspect of the present invention, a power supply integrated compartment is provided, comprising: a container body, and a DC power supply module, a first voltage conversion module, a power distribution module, a converter, and an output module disposed inside the container body;

[0006] The DC power supply module is connected to the power distribution module, and the DC power supply module is used to output a first DC voltage to the power distribution module;

[0007] The first voltage conversion module is connected to the power distribution module, and the first voltage conversion module is configured to convert the second DC voltage output by the photovoltaic module into a third DC voltage;

[0008] The power distribution module is connected to the converter, and the power distribution module is configured to output the first DC voltage and / or the third DC voltage to the converter, or to output the third DC voltage to the DC power supply module;

[0009] The converter is connected to the output module and is configured to convert the voltage output by the power distribution module into an AC voltage signal and output the AC voltage signal to the output module.

[0010] Optionally, the DC power supply module includes a battery module and a second voltage conversion module;

[0011] The battery module is located in the middle of the container body, and the second voltage conversion module is located on one side surface of the battery module;

[0012] The second voltage conversion module is connected to both the battery module and the power distribution module, and is configured to convert the voltage output by the battery module into the first DC voltage.

[0013] Optionally, the battery module includes a rows and b columns of sub-batteries, and each row of sub-batteries includes c sub-batteries; each pair of adjacent rows of sub-batteries constitutes a battery unit; a, b, and c are all integers greater than or equal to 2.

[0014] Each pair of d adjacent battery cells constitutes a battery cluster. The second voltage conversion module includes a first electrode and a second electrode that correspond one-to-one with the battery clusters, where d is an integer greater than or equal to 1.

[0015] For any given battery cell: the sub-cells located in the same row and arranged along the row direction of the sub-cells are connected in series sequentially. The sub-cells in the first row and first column of the battery cell are connected to the sub-cells in the second row and first column of the battery cell. The sub-cell in the first row and c-th column of the battery cell serves as the first end of the battery cell, and the sub-cell in the second row and c-th column serves as the second end of the battery cell. Wherein, the first sub-cell in any row of the battery cell is the sub-cell furthest from the second voltage conversion module.

[0016] When d equals 1, the first end of the battery cell is connected to the first electrode corresponding to the battery cluster to which the battery cell belongs, and the second end of the battery cell is connected to the second electrode corresponding to the battery cluster to which the battery cell belongs.

[0017] When d is greater than or equal to 2, for any of the battery clusters: the first end of the first battery cell of the battery cluster is connected to the first electrode of the battery cluster, the second end of the last battery cell of the battery cluster is connected to the second electrode of the battery cluster, and the second end of the e-th battery cell is connected to the first end of the (e+1)-th battery cell, where e is an integer greater than or equal to 1 and less than d.

[0018] Optionally, the power distribution module includes a power distribution control unit and a bus unit;

[0019] The combiner unit is connected to the control terminals of the first voltage conversion module, the second voltage conversion module, the converter, and the power distribution control unit, respectively. The power distribution control unit is configured to control the first DC voltage and / or the third DC voltage to be output to the converter through the combiner unit, or to control the third DC voltage to be output to the DC power supply module.

[0020] The power output terminal of the power distribution control unit is connected to the first voltage conversion module, the second voltage conversion module, the bus unit, the converter, and the output module, respectively. The power distribution control unit is configured to provide power to the bus unit, the first voltage conversion module, the second voltage conversion module, the converter, and the output module based on the power output of the bus unit.

[0021] Optionally, the output module includes a static transfer switch and an output unit. The power output terminal of the power distribution control unit is connected to the static transfer switch. The first terminal of the static transfer switch is connected to the converter. The second terminal of the static transfer switch is used to connect to the mains power. The output terminal of the static transfer switch is connected to the output unit. The static transfer switch is configured to output the power output by the converter or the mains power to the output unit.

[0022] The first voltage conversion module is disposed on the top surface of the battery module, and the second voltage conversion module, the power distribution control unit, the bus unit, the converter, the static transfer switch, and the output unit are all disposed on the same side surface of the battery module.

[0023] Optionally, along a first direction of the plane containing the first preset side, the current converter and the power distribution control unit are arranged in sequence; along a second direction of the plane containing the first preset side, the second voltage conversion module, the current converter, and the converter are arranged in sequence; the first direction of the plane containing the first preset side and the second direction of the plane containing the first preset side intersect, wherein the first preset side is the surface of the battery module in which the second voltage conversion module, the power distribution control unit, the current converter, the converter, the static transfer switch, and the output unit are disposed;

[0024] Along the first direction of the plane containing the first preset side, the converter, the static transfer switch, and the output unit are arranged in sequence.

[0025] Optionally, at least one of the first voltage conversion module, the battery module, the second voltage conversion module, the power distribution control unit, the busbar unit, the converter, the static transfer switch, and the output unit has an irregular shape in its vertical projection on a first preset side surface; the first preset side surface is the surface of the battery module on which the second voltage conversion module, the power distribution control unit, the busbar unit, the converter, the static transfer switch, and the output unit are disposed.

[0026] Optionally, the integrated power supply compartment further includes a liquid cooling unit, a first water circuit, and a second water circuit, wherein the liquid cooling unit is disposed on the top surface of the battery module;

[0027] The first output terminal of the liquid cooling unit is connected to the first water circuit, and the first water circuit is connected to the first voltage conversion module, the second voltage conversion module, the combiner unit, and the converter respectively.

[0028] The second output terminal of the liquid cooler unit is connected to the second water circuit, and the second water circuit is connected to the battery module.

[0029] Optionally, the first output terminal of the liquid cooling unit is disposed on a side of the liquid cooling unit that is on the same plane as the first preset side. The first water circuit includes a first pipe, a second pipe, a third pipe, a fourth pipe, a fifth pipe, and a sixth pipe. The first preset side is the surface of the battery module in which the second voltage conversion module, the power distribution control unit, the combiner unit, the converter, the static transfer switch, and the output unit are disposed.

[0030] The first output terminal of the liquid cooler unit is connected to the first pipeline, the first end of the second pipeline is connected to the first pipeline, the second end of the second pipeline is connected to the first voltage conversion module, the first end of the third pipeline is connected to the first pipeline, the second end of the third pipeline is connected to the second voltage conversion module, the first end of the fourth pipeline is connected to the first pipeline, the second end of the fourth pipeline is connected to the combiner unit, the first end of the fifth pipeline is connected to the first pipeline, the second end of the fifth pipeline is connected to the static transfer switch, the first end of the sixth pipeline is connected to the first pipeline, and the second end of the sixth pipeline is connected to the converter;

[0031] The first, second, third, fourth, fifth, and sixth pipelines are all located on the first preset side.

[0032] Optionally, the second output terminal of the liquid cooling unit is disposed on a side of the liquid cooling unit that is on the same plane as the first preset side. The second water circuit includes a seventh pipe, an eighth pipe, and a sub-battery pipe group corresponding one-to-one with the number of sub-batteries. Each sub-battery pipe group includes at least one sub-battery pipe. The first preset side is the surface of the battery module in which the second voltage conversion module, the power distribution control unit, the combiner unit, the converter, the static transfer switch, and the output unit are disposed.

[0033] The seventh pipeline is connected to the second output terminal of the liquid cooling unit and the eighth pipeline respectively. The eighth pipeline is connected to each sub-battery pipeline respectively. Each sub-battery pipeline extends to the sub-battery in the corresponding column.

[0034] The second output terminal of the liquid cooler is located at the end of the first output terminal of the liquid cooler that is far away from the first voltage conversion module. The seventh pipeline is located on the first preset side. The eighth pipeline and each of the sub-battery pipelines are located on the second preset side. The second preset side is the side of the liquid cooler that is adjacent to and close to the second output terminal of the liquid cooler.

[0035] The technical solution of this utility model embodiment integrates a DC power supply module, a first voltage conversion module, a power distribution module, a converter, and an output module within the container of the integrated compartment. The electrical energy generated by the photovoltaic modules and / or the electrical energy output from the DC power supply module is converted by the first voltage conversion module and then transmitted to the converter via the power distribution module. The converter converts the input electrical energy into AC power, which is then output to the external load via the output module. In this embodiment, the integrated compartment highly integrates DC and photovoltaic side equipment, providing a unified solution to customers' off-grid switching needs for photovoltaic systems. On-site wiring is sufficient for immediate use, avoiding the need for on-site wiring and debugging of multiple devices, and simplifying external wiring.

[0036] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0038] Figure 1 A schematic diagram of the integrated power supply compartment provided for an embodiment of this utility model;

[0039] Figure 2 A schematic diagram of the integrated power supply compartment at a first angle provided for an embodiment of this utility model;

[0040] Figure 3 A schematic diagram of power line connection in an integrated power supply compartment provided for the implementation of this utility model;

[0041] Figure 4 A schematic diagram of power cable connection in an integrated power supply compartment provided for an embodiment of this utility model;

[0042] Figure 5 A schematic diagram of the layout of the first water channel in an integrated power supply compartment provided for an embodiment of this utility model;

[0043] Figure 6 This is a schematic diagram of the arrangement of the second waterway in an integrated power supply compartment, provided for an embodiment of this utility model. Detailed Implementation

[0044] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0045] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0046] Figure 1 This is a schematic diagram of the integrated power supply compartment provided in an embodiment of the present utility model, with reference to... Figure 1 The integrated power supply compartment includes: a container body 10, and a DC power supply module, a first voltage conversion module 11, a power distribution module 12, a converter 13 and an output module 14 disposed inside the container body 10.

[0047] The DC power supply module is connected to the power distribution module 12, and the DC power supply module is used to output the first DC voltage to the power distribution module.

[0048] The first voltage conversion module 11 is connected to the power distribution module 12, and the first voltage conversion module 11 is configured to convert the second DC voltage output by the photovoltaic module into a third DC voltage.

[0049] The power distribution module 12 is connected to the converter 13. The power distribution module 12 is configured to output a first DC voltage and / or a third DC voltage to the converter 13, or to output the third DC voltage to the DC power supply module.

[0050] The converter 13 is connected to the output module 14. The converter 13 is configured to convert the voltage output by the power distribution module 12 into an AC voltage signal and output the AC voltage signal to the output module 14.

[0051] The DC power supply module may include several batteries to output DC power to the power distribution module 12. The first voltage conversion module 11 includes a DC-to-DC converter (DCDC) chip, a type of power conversion chip used to convert DC voltage to another DC voltage. In this embodiment, the first voltage conversion module 11 can use any existing DCDC chip. In this embodiment, a photovoltaic module interface terminal is located on one side surface of the container body 10. This photovoltaic module interface terminal is connected to the first voltage conversion module 11 for connecting external photovoltaic modules. The vertical projection of the photovoltaic module interface terminal on the container body 10 is located within the vertical projection of the first voltage conversion module 11 on the container body 10, thus bringing the photovoltaic module interface terminal closer to the first voltage conversion module 11. This shortens the wiring length between the photovoltaic module interface terminal and the first voltage conversion module 11, reducing the space occupied by the wiring in the container body 10. The second DC voltage is the voltage output by the photovoltaic module, which is converted by the first voltage conversion module 11 into a third DC voltage and output to the power distribution module 12. The third DC voltage is different from the second DC voltage.

[0052] Output module 14 is connected not only to converter 13 but also to the power grid to output electrical energy from at least one of the power grid, photovoltaic modules, and DC power supply modules to an external load connected to output module 14 for power supply. Distribution module 12 includes at least controllers and switches to control at least one of the electrical energy output from DC power supply modules and the first voltage conversion module 11 to be output to converter 13 when power demand is high, and then output to output module 13 to supply power to the load. Alternatively, when power demand is low, the electrical energy output from the first voltage conversion module 11 is controlled to be output to DC power supply modules to charge the DC power supply modules using the electrical energy output from the photovoltaic modules, thus storing electrical energy. Converter 13 can be a power storage inverter (PCS), also known as a bidirectional power storage inverter, which is the core component for enabling bidirectional power flow between the energy storage system and the power grid. It is used to control the charging and discharging process of the DC power supply modules and to perform AC / DC conversion. The converter 13 is also configured to convert grid power into DC power and transmit it to the DC power supply module for charging. The converter 13 operates in grid-connected and off-grid modes. In grid-connected mode, the converter 13 achieves bidirectional energy conversion between the DC power supply module and the grid. Its main function is to perform constant power or constant current control according to microgrid monitoring instructions, charging or discharging the DC power supply module, while smoothing out highly volatile outputs such as photovoltaic power. In off-grid mode, the converter 13 can provide power to the load through the DC power supply module or the first voltage conversion module 11, depending on actual needs. Because the load is AC powered, the converter 13 needs to convert the DC power output from the first voltage conversion module 11 or the DC power supply module into AC power.

[0053] The technical solution of this utility model embodiment integrates a DC power supply module, a first voltage conversion module, a power distribution module, a converter, and an output module within the container of the integrated compartment. The electrical energy generated by the photovoltaic modules and / or the electrical energy output from the DC power supply module is converted by the first voltage conversion module and then transmitted to the converter via the power distribution module. The converter converts the input electrical energy into AC power, which is then output to the external load via the output module. In this embodiment, the integrated compartment highly integrates DC and photovoltaic side equipment, providing a unified solution to customers' off-grid switching needs for photovoltaic systems. On-site wiring is sufficient for immediate use, avoiding the need for on-site wiring and debugging of multiple devices, and simplifying external wiring.

[0054] Continue to refer to Figure 1 The DC power supply module includes a battery module 15 and a second voltage conversion module 16;

[0055] The battery module 15 is located in the middle of the container body 10, and the second voltage conversion module 16 is located on one side surface of the battery module 15.

[0056] The second voltage conversion module 16 is connected to the battery module 15 and the power distribution module 12 respectively. The second voltage conversion module 16 is configured to convert the voltage output by the battery module 15 into a first DC voltage.

[0057] The battery module 15 includes several batteries to output DC voltage. The second voltage conversion module 16 includes a DC-to-DC converter chip, which functions the same as the first voltage conversion module 11, both used to convert DC voltage to another DC voltage. The first voltage conversion module 11 and the second voltage conversion module 16 can use the same DC-DC converter chip or different DC-DC converter chips; there is no specific limitation in this regard. The battery module 15 is cubic or cuboid, including a top surface, a bottom surface, and four sides. The second voltage conversion module 16 can be disposed on any one of the four sides.

[0058] Figure 2 This is a schematic diagram of the integrated power supply compartment at a first angle, provided as an embodiment of the present invention. (Refer to...) Figure 1 and Figure 2 The battery module 15 includes a rows and b columns of sub-batteries 1511, and each row of sub-batteries includes c sub-batteries 1511; each two adjacent rows of sub-batteries constitute a battery unit 151; a, b, and c are all integers greater than or equal to 2.

[0059] Each adjacent d battery cells 151 constitute a battery cluster. The second voltage conversion module 16 includes a first terminal A1 and a second terminal A2 that are arranged one-to-one with the battery clusters, where d is an integer greater than or equal to 1.

[0060] For any battery cell 151: the sub-cells located in the same row and arranged along the row direction of the sub-cells 1511 are connected in series in sequence. The sub-cells in the first row and first column of the battery cell 151 are connected to the sub-cells in the second row and first column of the battery cell 151. The sub-cell in the first row and c-th column of the battery cell 151 serves as the first end of the battery cell 151, and the sub-cell in the second row and c-th column serves as the second end of the battery cell 151. Among them, the first sub-cell in any row of the sub-cells in the battery cell 151 is the sub-cell furthest from the second voltage conversion module 16.

[0061] When d equals 1, the first end of the battery unit 151 is connected to the first terminal A1 of the battery cluster to which the battery unit 151 belongs, and the second end of the battery unit 151 is connected to the second terminal A2 of the battery cluster to which the battery unit 151 belongs.

[0062] When d is greater than or equal to 2, for any battery cluster: the first end of the first battery cell of the battery cluster is connected to the first terminal A1 of the battery cluster, the second end of the last battery cell of the battery cluster is connected to the second terminal A2 of the battery cluster, and the second end of the e-th battery cell is connected to the first end of the (e+1)-th battery cell, where e is an integer greater than or equal to 1 and less than d.

[0063] In this embodiment, taking a battery module 15 comprising 6 rows and 2 columns of sub-cells as an example, each row of sub-cells includes 2 sub-cells 1511. The sub-cells in the same battery unit 151 are connected in series in a "Z" shape, resulting in a "C"-shaped arrangement of the sub-cells in each battery unit 151. The first electrode A1 can be a positive electrode, and the second electrode A2 can be a negative electrode, or vice versa. In this embodiment, taking a battery cluster comprising only one battery unit 151 as an example, the first electrode A1 is connected to the sub-cell in the first row and second column of battery unit 151; the sub-cell 1511 in the first row and second column is connected to the sub-cell in the first row and first column; the sub-cell in the first row and first column is connected to the sub-cell in the second row and first column; the sub-cell in the second row and first column is connected to the sub-cell in the second row and second column; and the sub-cell in the second row and second column is connected to the second electrode A2, thus achieving that each sub-cell in the battery cluster is connected in series between the corresponding first electrode A1 and second electrode A2. In this embodiment, the battery module 15 includes two columns and eight layers of a total of 16 sub-batteries 1511. Every four sub-batteries 1511 constitute a battery unit 151, and one battery unit 151 constitutes a battery cluster. The battery module 15 can reach a capacity of 3MWh. The sub-batteries 1511 are configured with 104S1P.

[0064] In this embodiment, the battery cells 151 are arranged in a C-shape cluster to reduce the length of the connecting cables, reduce inconsistencies between the individual battery cells 151 caused by the cable length, and improve the system energy efficiency.

[0065] Figure 3 A schematic diagram of the power line connection in an integrated power supply compartment is provided for the implementation of this utility model. Figure 4 A schematic diagram of power cable connection in an integrated power supply compartment is provided for an embodiment of this utility model. (Refer to...) Figure 1 , Figure 3 and Figure 4 Optionally, the power distribution module 12 includes a power distribution control unit 122 and a bus unit 121;

[0066] The combiner unit 121 is connected to the control terminals of the first voltage conversion module 11, the second voltage conversion module 16, the converter 13, and the power distribution control unit 122. The power distribution control unit 122 is configured to control the output of the first DC voltage and / or the third DC voltage to the converter 13 through the combiner unit 121, or to control the output of the third DC voltage to the DC power supply module, specifically to charge the battery module 15 through the second voltage conversion module 16.

[0067] The power output terminal of the power distribution control unit 122 is connected to the first voltage conversion module 16, the second voltage conversion module 11, the combiner unit 122, the converter 13, and the output module 14, respectively. The power distribution control unit 122 is configured to provide DC power to the combiner unit 122, the first voltage conversion module 11, the second voltage conversion module 16, the converter 13, and the output module 14 according to the power output of the combiner unit 122.

[0068] The combiner unit 121 includes multiple switches. The second voltage conversion module 16 is connected to the inverter 13 via a switch, and the first voltage conversion module 11 is also connected to the inverter 13 via a switch. Each switch within the combiner unit 121 is controlled by the power distribution control unit 122 to output electrical energy from the battery module 15 and / or the photovoltaic module to the inverter 13, or to control the photovoltaic module to charge the battery module 15. Figure 1 and Figure 3 As shown, the second voltage conversion module 16 is connected to the combiner unit 122 via the first power line L1, the first voltage conversion module 11 is connected to the combiner unit 121 via the second power line L2, the combiner unit 121 is connected to the converter 13 via the third power line L3, and the converter 13 is connected to the output module 14 via the fourth power line L4.

[0069] like Figure 1 and Figure 4 As shown, the combiner unit 121 is connected to the power distribution control unit 122 via the first power line K1. The power distribution control unit 122 is connected to the second voltage conversion module 16 via the second power line K2. The power distribution control unit 122 is connected to the first voltage conversion module 11 via the third power line K3. The power distribution control unit 122 is connected to the converter 13 via the fourth power line K4. The power distribution control unit 122 is connected to the output module 14 via the fifth power line K5. The power distribution control unit 122 provides the DC power output from the combiner unit 121 to various modules in the power supply compartment, such as the first voltage conversion module 11, the second voltage conversion module 12, the converter 13, the combiner unit 121, and the output module 14, to power each module.

[0070] In this embodiment, the integrated power supply compartment uses DC voltage to supply power to each module in the integrated compartment. During the design, the first voltage conversion module 11, the second voltage conversion module 12, the converter 13, the combiner unit 121, and the output module 14 are all designed to be DC powered. This replaces the existing technology where the DC power output from the combiner unit 121 is converted into AC power by the converter 13 and then used as the auxiliary power supply for the integrated power supply compartment to supply power to each module. This reduces the AC / DC inverter conversion and improves the energy efficiency of the auxiliary power side.

[0071] Continue to refer to Figure 1 , Figure 3 and Figure 4 Optionally, the output module 14 includes a static transfer switch 141 (STS) and an output unit 142. The power output terminal of the power distribution control unit 122 is connected to the static transfer switch 141. The first terminal of the static transfer switch 141 is connected to the converter 13, and the second terminal of the static transfer switch 141 is used to connect to the mains power, that is, to the power grid. The output terminal of the static transfer switch 141 is connected to the output unit 142. The static transfer switch 141 is configured to output the power output from the converter 13 or the mains power to the output unit 142. The output unit 142 is used to supply power to external loads.

[0072] The static transfer switch 141 is a power supply two-to-one automatic switching system. In this embodiment, the mains power connected to the static transfer switch 141 is used as the main power supply, and the converter 13 connected to the second terminal is used as the auxiliary power supply. Under certain set conditions, such as when the main power supply is within the normal voltage range, the main power supply supplies power to the load. Under other conditions, such as when the main power supply fails or during peak electricity consumption, the auxiliary power supply can supply power to the load. Figure 3 When the intermediate converter 13 is connected to the output module 14 via the fourth power line L4, the fourth power line L4 is actually connected to the static changeover switch 141 in the output module, and the output terminal of the static changeover switch 141 is connected to the output unit 142 via the fifth power line L5. Figure 4 In the middle, when the power distribution control unit 122 is connected to the output module 14 through the fifth power line K5, it is actually connected to the static changeover switch 141 in the output module 14.

[0073] Continue to refer to Figure 1 The first voltage conversion module 11 is disposed on the top surface of the battery module 15, and the second voltage conversion module 16, the power distribution control unit 122, the combiner unit 121, the converter 13, the static transfer switch 141, and the output unit 142 are all disposed on the same side surface of the battery module 15.

[0074] All modules except the first voltage conversion module 11 are placed on the same side, such as the right side of the front, rear, left, and right sides of the first battery module 15. Then, except for the top and right sides, no other devices are placed on the other sides of the battery module 15, so that the other sides of the battery module 15 except for the top and right sides can fit into the container body 10, thereby reducing the area of ​​the integrated power compartment.

[0075] Continue to refer to Figure 1 and Figure 3 Along the first direction Y of the plane containing the first preset side (taking the right side of the battery module 15 as an example in this embodiment), the combiner unit 121 and the power distribution control unit 122 are adjacent and arranged sequentially. Along the second direction X of the plane containing the first preset side, the combiner unit 121 is adjacent to the second voltage conversion module 16 and the inverter 13, and the second voltage conversion module 16, the combiner unit 121, and the inverter 13 are arranged sequentially. The first direction Y of the plane containing the first preset side intersects with the second direction X of the plane containing the first preset side, specifically, they can be perpendicular. The first preset side is the surface of the battery module 15 where the second voltage conversion module 16, the power distribution control unit 122, the combiner unit 121, the inverter 13, the static transfer switch 141, and the output unit 142 are located.

[0076] Along the first direction Y of the plane where the first preset side is located, the converter 13, the static transfer switch 141 and the output unit 142 are arranged in sequence.

[0077] In this embodiment, the integrated power supply compartment is divided into three columns on the first preset side. The second voltage conversion module 16 is located in the first column, the combiner unit 121 and the power distribution control unit 122 are located in the second column, and the converter 13, the static transfer switch 141, and the output unit 142 are located in the third column. This arrangement results in shorter cables connecting the various modules, reducing cable losses. Due to the arrangement of the modules in this embodiment, the overall required cable length is shorter, cable losses are reduced, and the power output of the integrated power supply compartment can reach 1500V to 2000V, improving the overall system efficiency.

[0078] Furthermore, at least one of the first voltage conversion module 11, battery module 15, second voltage conversion module 16, power distribution control unit 122, combiner unit 121, converter 13, static transfer switch 141, and output unit 142 has an irregular shape in its vertical projection on the first preset side, so as to further reduce the occupation of each module on the first preset side, which is conducive to making the arrangement between each module more compact, further reducing the volume of the power supply compartment, and facilitating the realization of high integration and miniaturization of the equipment.

[0079] Continue to refer to Figure 1The integrated power supply compartment also includes a liquid cooling unit 17, a first water channel and a second water channel, with the liquid cooling unit 17 located on the top surface of the battery module 15.

[0080] The first output terminal B1 of the liquid cooling unit is connected to the first water circuit, and the first water circuit is connected to the first voltage conversion module 11, the second voltage conversion module 16, the combiner unit 121 and the converter 13 respectively.

[0081] The second output terminal B2 of the liquid cooler unit is connected to the second water circuit, and the second water circuit is connected to the battery module 15.

[0082] This embodiment features two water cooling systems: a first water cooling system and a second water cooling system. The first water cooling system utilizes a dry cooler for natural cooling, with coolant (such as water) circulating directly in the system to dissipate heat from the first voltage conversion module 11, the second voltage conversion module 16, the combiner unit 121, and the converter 13. The second water cooling system dissipates heat from the battery module 15 using a compressor-based cooling method. Alternatively, the first water cooling system can also use a compressor-based cooling method; the specific cooling methods for the first and second water cooling systems are not specifically limited. In this embodiment, the integrated power supply compartment also integrates a liquid cooling unit 17 to dissipate heat from the various modules within the compartment, preventing damage to the integrated power supply compartment due to high temperatures during operation, thus extending its service life and improving operational reliability.

[0083] Figure 5 The schematic diagram of the first water path in the integrated power supply compartment provided for an embodiment of this utility model is shown in reference 5. Optionally, the first output terminal B1 of the liquid cooling unit is disposed on the side of the liquid cooling unit 17 that is located on the same plane as the first preset side. The first water path includes a first pipe N1, a second pipe N2, a third pipe N3, a fourth pipe N4, a fifth pipe N5, and a sixth pipe N6. The first preset side is the surface of the battery module 15 in which the second voltage conversion module 16, the power distribution control unit 122, the combiner unit 121, the converter 13, the static transfer switch 141, and the output unit 142 are disposed.

[0084] The first output terminal B1 of the liquid chiller unit is connected to the first pipeline N1, the first end of the second pipeline N2 is connected to the first pipeline N1, the second end of the second pipeline N2 is connected to the first voltage conversion module 11, the first end of the third pipeline N3 is connected to the first pipeline N1, the second end of the third pipeline N3 is connected to the second voltage conversion module 16, the first end of the fourth pipeline N4 is connected to the first pipeline N1, the second end of the fourth pipeline N4 is connected to the combiner unit 121, the first end of the fifth pipeline N5 is connected to the first pipeline N1, the second end of the fifth pipeline N5 is connected to the static transfer switch 141, the first end of the sixth pipeline N6 is connected to the first pipeline N1, and the second end of the sixth pipeline N6 is connected to the converter 13.

[0085] Among them, the first pipe N1, the second pipe N2, the third pipe N3, the fourth pipe N4, the fifth pipe N5 and the sixth pipe N6 are all located on the first preset side.

[0086] The fifth conduit N5 includes a first sub-channel, a second sub-channel, and a third sub-channel connected in sequence. The first sub-channel is connected to the first conduit N1, and the third sub-channel is connected to the static transfer switch 141. In this embodiment, the first conduit N1 and the second sub-channel both extend along the second direction X of the plane containing the first preset side surface. The second conduit N2, the third conduit N3, the fourth conduit N4, the sixth conduit N6, the first sub-channel, and the third sub-channel all extend along the first direction Y of the plane containing the first preset side surface. The first conduit N1 is disposed between the liquid cooler unit 17 and the combiner unit 142, between the liquid cooler unit 17 and the second voltage conversion module 16, and between the liquid cooler unit 17 and the converter 13.

[0087] Figure 6 A schematic diagram of the layout of the second water channel in an integrated power supply compartment provided for an embodiment of this utility model, with reference to... Figure 1 and Figure 6 Optionally, the second output terminal B2 of the liquid cooling unit is located on the side of the liquid cooling unit 17 that is on the same plane as the first preset side. The second water circuit includes a seventh pipe N7, an eighth pipe N8, and a sub-battery pipe group that corresponds one-to-one with the number of sub-batteries. Each sub-battery pipe group includes at least one sub-battery pipe N9. The first preset side is the surface of the battery module 15 where the second voltage conversion module 16, the power distribution control unit 122, the combiner unit 121, the converter 13, the static transfer switch 141, and the output unit 142 are located.

[0088] The seventh pipe N7 is connected to the second output terminal B2 of the liquid cooler unit and the eighth pipe N8 respectively. The eighth pipe N8 is connected to each sub-battery pipe N9 respectively. Each sub-battery pipe N9 extends to the corresponding column of sub-battery.

[0089] The second output terminal B2 of the liquid cooler is located at the end of the first output terminal B1 of the liquid cooler that is far away from the first voltage conversion module 11. The seventh pipeline N7 is located on the first preset side. The eighth pipeline N8 and each sub-battery pipeline are all located on the second preset side. The second preset side is the side of the liquid cooler 17 that is adjacent to and close to the second output terminal B2 of the liquid cooler.

[0090] This embodiment exemplifies that each sub-battery circuit group includes two sub-battery circuits N9, which are arranged on both sides of a row of sub-batteries to accelerate heat dissipation. Each sub-battery circuit N9 extends along the column direction of the sub-batteries, the eighth circuit N8 extends along the row direction of the sub-batteries, and the seventh circuit N7 extends along the first direction of the plane containing the first preset side surface. The column direction of the sub-batteries is parallel to the first direction of the plane containing the first preset side surface.

[0091] Continue to refer to Figure 1 Optionally, the power supply compartment also includes a fire-fighting module 18, located on the top surface of the battery module 15, for storing fire-fighting agents to be sprayed out to extinguish fires in the event of a fire in the power supply compartment.

[0092] In this embodiment, the size of the container can be less than or equal to 121 feet. For example, if it is equal to 10 feet, the DC power supply module, converter, output module, first voltage conversion module, liquid cooling unit, etc. are highly integrated into the 10-foot container. It can be directly connected and used on site, with high integration and simple wiring.

[0093] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0094] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A power integrated pod, characterized by, include: The container body, and the DC power supply module, the first voltage conversion module, the power distribution module, the converter and the output module disposed inside the container body; The DC power supply module is connected to the power distribution module, and the DC power supply module is used to output a first DC voltage to the power distribution module; The first voltage conversion module is connected to the power distribution module, and the first voltage conversion module is configured to convert the second DC voltage output by the photovoltaic module into a third DC voltage; The power distribution module is connected to the converter, and the power distribution module is configured to output the first DC voltage and / or the third DC voltage to the converter, or to output the third DC voltage to the DC power supply module; The converter is connected to the output module and is configured to convert the voltage output by the power distribution module into an AC voltage signal and output the AC voltage signal to the output module.

2. The power pod of claim 1, wherein, The DC power supply module includes a battery module and a second voltage conversion module; The battery module is located in the middle of the container body, and the second voltage conversion module is located on one side surface of the battery module; The second voltage conversion module is connected to both the battery module and the power distribution module, and is configured to convert the voltage output by the battery module into the first DC voltage.

3. The power pod of claim 2, wherein, The battery module includes a rows and b columns of sub-batteries, and each row of sub-batteries includes c sub-batteries; each pair of adjacent rows of sub-batteries constitutes a battery unit; a, b, and c are all integers greater than or equal to 2. Each pair of d adjacent battery cells constitutes a battery cluster. The second voltage conversion module includes a first electrode and a second electrode that correspond one-to-one with the battery clusters, where d is an integer greater than or equal to 1. For any given battery cell: the sub-cells located in the same row and arranged along the row direction of the sub-cells are connected in series sequentially. The sub-cells in the first row and first column of the battery cell are connected to the sub-cells in the second row and first column of the battery cell. The sub-cell in the first row and c-th column of the battery cell serves as the first end of the battery cell, and the sub-cell in the second row and c-th column serves as the second end of the battery cell. Wherein, the first sub-cell in any row of the battery cell is the sub-cell furthest from the second voltage conversion module. When d equals 1, the first end of the battery cell is connected to the first electrode corresponding to the battery cluster to which the battery cell belongs, and the second end of the battery cell is connected to the second electrode corresponding to the battery cluster to which the battery cell belongs. When d is greater than or equal to 2, for any of the battery clusters: the first end of the first battery cell of the battery cluster is connected to the first electrode of the battery cluster, the second end of the last battery cell of the battery cluster is connected to the second electrode of the battery cluster, and the second end of the e-th battery cell is connected to the first end of the (e+1)-th battery cell, where e is an integer greater than or equal to 1 and less than d.

4. The power pod of claim 2, wherein, The power distribution module includes a power distribution control unit and a bus unit; The combiner unit is connected to the control terminals of the first voltage conversion module, the second voltage conversion module, the converter, and the power distribution control unit, respectively. The power distribution control unit is configured to control the first DC voltage and / or the third DC voltage to be output to the converter through the combiner unit, or to control the third DC voltage to be output to the DC power supply module. The power output terminal of the power distribution control unit is connected to the first voltage conversion module, the second voltage conversion module, the bus unit, the converter, and the output module, respectively. The power distribution control unit is configured to provide power to the bus unit, the first voltage conversion module, the second voltage conversion module, the converter, and the output module based on the power output of the bus unit.

5. The power pod of claim 4, wherein, The output module includes a static transfer switch and an output unit. The power output terminal of the power distribution control unit is connected to the static transfer switch. The first terminal of the static transfer switch is connected to the converter. The second terminal of the static transfer switch is used to connect to the mains power. The output terminal of the static transfer switch is connected to the output unit. The static transfer switch is configured to output the power output by the converter or the mains power to the output unit. The first voltage conversion module is disposed on the top surface of the battery module, and the second voltage conversion module, the power distribution control unit, the bus unit, the converter, the static transfer switch, and the output unit are all disposed on the same side surface of the battery module.

6. The power pod of claim 5, wherein, Along the first direction of the plane containing the first preset side, the current converter and the power distribution control unit are arranged in sequence; along the second direction of the plane containing the first preset side, the second voltage conversion module, the current converter, and the converter are arranged in sequence; the first direction of the plane containing the first preset side and the second direction of the plane containing the first preset side intersect, wherein the first preset side is the surface of the battery module in which the second voltage conversion module, the power distribution control unit, the current converter, the converter, the static transfer switch, and the output unit are disposed; Along the first direction of the plane containing the first preset side, the converter, the static transfer switch, and the output unit are arranged in sequence.

7. The power pod of claim 5, wherein, At least one of the first voltage conversion module, the battery module, the second voltage conversion module, the power distribution control unit, the busbar unit, the converter, the static transfer switch, and the output unit has an irregular shape in its vertical projection on a first preset side surface; the first preset side surface is the surface of the battery module on which the second voltage conversion module, the power distribution control unit, the busbar unit, the converter, the static transfer switch, and the output unit are disposed.

8. The power pod of claim 5, wherein, It also includes a liquid cooling unit, a first water channel and a second water channel, wherein the liquid cooling unit is disposed on the top surface of the battery module; The first output terminal of the liquid cooling unit is connected to the first water circuit, and the first water circuit is connected to the first voltage conversion module, the second voltage conversion module, the combiner unit, and the converter respectively. The second output terminal of the liquid cooler unit is connected to the second water circuit, and the second water circuit is connected to the battery module.

9. The power pod of claim 8, wherein, The first output terminal of the liquid cooling unit is disposed on a side of the liquid cooling unit that is on the same plane as the first preset side. The first water circuit includes a first pipe, a second pipe, a third pipe, a fourth pipe, a fifth pipe, and a sixth pipe. The first preset side is the surface of the battery module in which the second voltage conversion module, the power distribution control unit, the combiner unit, the converter, the static transfer switch, and the output unit are disposed. The first output terminal of the liquid cooler unit is connected to the first pipeline, the first end of the second pipeline is connected to the first pipeline, the second end of the second pipeline is connected to the first voltage conversion module, the first end of the third pipeline is connected to the first pipeline, the second end of the third pipeline is connected to the second voltage conversion module, the first end of the fourth pipeline is connected to the first pipeline, the second end of the fourth pipeline is connected to the combiner unit, the first end of the fifth pipeline is connected to the first pipeline, the second end of the fifth pipeline is connected to the static transfer switch, the first end of the sixth pipeline is connected to the first pipeline, and the second end of the sixth pipeline is connected to the converter; The first, second, third, fourth, fifth, and sixth pipelines are all located on the first preset side.

10. The power pod of claim 9, wherein, The second output terminal of the liquid cooling unit is located on a side of the liquid cooling unit that is on the same plane as the first preset side. The second water circuit includes a seventh pipe, an eighth pipe, and sub-battery pipe groups that correspond one-to-one with the number of sub-batteries. Each sub-battery pipe group includes at least one sub-battery pipe. The first preset side is the surface of the battery module where the second voltage conversion module, the power distribution control unit, the combiner unit, the converter, the static transfer switch, and the output unit are located. The seventh pipeline is connected to the second output terminal of the liquid cooling unit and the eighth pipeline respectively. The eighth pipeline is connected to each sub-battery pipeline respectively. Each sub-battery pipeline extends to the sub-battery in the corresponding column. The second output terminal of the liquid cooler is located at the end of the first output terminal of the liquid cooler that is far away from the first voltage conversion module. The seventh pipeline is located on the first preset side. The eighth pipeline and each of the sub-battery pipelines are located on the second preset side. The second preset side is the side of the liquid cooler that is adjacent to and close to the second output terminal of the liquid cooler.

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