Liquid cooling unit configuration method and energy storage system

Abstract

This application discloses a liquid cooling unit configuration method and an energy storage system, belonging to the field of energy storage system technology, and applied to a power controller. The power controller is configured to control a power conversion unit. The method includes: sending integration information to the liquid cooling controller, the integration information being used to characterize the integration type of the power conversion unit; receiving a matching result fed back by the liquid cooling controller, the matching result being obtained by the liquid cooling controller based on the integration information and model information, the model information being used to characterize the arrangement of the liquid cooling units; matching the liquid cooling units with the power conversion unit based on the matching result; wherein, the liquid cooling controller obtains control logic based on the model information. The method provided in this application connects to the power conversion unit and cools it only when it confirms that the arrangement of the liquid cooling unit matches the integration type of the power conversion unit, thus avoiding operation under mismatch conditions, which could lead to system overheating and other malfunctions.

Description

Technical Field

[0001] The embodiments of this application relate to the field of energy storage system technology, and in particular to a liquid cooling unit configuration method and an energy storage system. Background Technology

[0002] Power conversion systems (PCS) can be integrated in different ways within energy storage containers. The control software used for the cooling system also differs depending on the integration method. Incompatibility between the cooling system and control software can lead to module overheating, excessive ambient temperature, and other malfunctions, ultimately causing shutdowns. Currently, the matching of the cooling system and the power conversion system is primarily done manually. However, manual operation is prone to oversights, resulting in mismatches between the integration type of the power conversion system and the layout of the cooling system. Summary of the Invention

[0003] The purpose of this application is to provide a liquid cooling unit configuration method and an energy storage system to solve the technical problem that manual matching of power conversion systems and heat dissipation systems in the prior art is prone to errors.

[0004] To address the aforementioned technical problems, embodiments of this application disclose the following technical solutions:

[0005] In a first aspect, a liquid cooling unit configuration method is provided, applied to a power controller, the power controller being configured to control a power conversion unit, the method comprising:

[0006] The integration information is sent to the liquid cooling controller, and the integration information is used to characterize the integration type of the power conversion unit;

[0007] The system receives a matching result from the liquid cooling controller, which is obtained by the liquid cooling controller based on the integration information and the model information. The model information is used to characterize the arrangement of the liquid cooling unit. The liquid cooling controller obtains control logic based on the model information, and the control logic is configured to control the liquid cooling unit to cool the power conversion unit.

[0008] The liquid cooling unit is matched with the power conversion unit based on the matching result.

[0009] In conjunction with the first aspect, the method of sending integrated information to the liquid cooling controller includes:

[0010] Obtain the communication method between the power controller and the liquid cooling controller;

[0011] When the power controller and the liquid cooling controller communicate directly, the integrated information is sent directly to the liquid cooling controller.

[0012] In conjunction with the first aspect, the method of sending integrated information to the liquid cooling controller includes:

[0013] Obtain the communication method between the power controller and the liquid cooling controller;

[0014] When the power controller and the liquid cooling controller communicate through a local controller, the integration information is sent to the liquid cooling controller through the local controller.

[0015] In conjunction with the first aspect, the method of sending integrated information to the liquid cooling controller includes:

[0016] Obtain the communication method between the power controller and the liquid cooling controller;

[0017] When the power controller and the liquid cooling controller communicate through the energy storage system controller, the integrated information is sent to the liquid cooling controller through the energy storage system controller.

[0018] In conjunction with the first aspect, the integration type includes centralized and embedded types, wherein the centralized type is characterized by the power conversion unit being arranged separately from the battery cluster, and the power conversion unit being connected to a different liquid cooling unit than the battery cluster;

[0019] The embedded feature is used to characterize that the power conversion unit and the battery cluster are arranged in a unified manner, and that the power conversion unit and the battery cluster share the liquid cooling unit.

[0020] In conjunction with the first aspect, the method for obtaining the integration type includes:

[0021] Obtain the control strategy of the power conversion unit;

[0022] When the control strategy includes power allocation for multiple power conversion units, the integration type of the power conversion units is determined to be centralized.

[0023] When the control strategy includes only the control of a single power conversion unit, the integration type of the power conversion unit is determined to be the embedded type.

[0024] Alternatively, the integration type may be input from an external source.

[0025] Secondly, a liquid cooling unit configuration method is provided, applied to a liquid cooling controller, wherein the liquid cooling controller is configured to control the liquid cooling unit, the method comprising:

[0026] The integration information is obtained and sent by the power controller. The integration information is used to characterize the integration type of the power conversion unit.

[0027] Obtain the model information, which is used to characterize the arrangement of the liquid cooling unit;

[0028] Based on the model information, the control logic is configured to control the liquid cooling unit to cool the power conversion unit.

[0029] The integrated information is matched with the model information of the liquid cooling unit to obtain a matching result;

[0030] The matching result is sent to the power controller so that the power controller matches the liquid cooling unit with the power conversion unit.

[0031] In conjunction with the second aspect, the arrangement includes a first type and a second type. When the arrangement of the liquid cooling unit is the first type, the liquid cooling unit is configured to cool the power conversion unit, which is of the centralized integration type.

[0032] When the arrangement of the liquid cooling unit is of the second type, the liquid cooling unit is configured to cool the power conversion unit, which is of the embedded integration type.

[0033] In conjunction with the second aspect, the method for the liquid cooling controller to obtain control logic based on the model information includes:

[0034] When the arrangement of the liquid cooling unit is determined to be the first type, the first control logic is matched to the liquid cooling unit;

[0035] When the arrangement of the liquid cooling unit is determined to be the second type, the second control logic is matched to the liquid cooling unit.

[0036] Thirdly, an energy storage system is provided, including:

[0037] Power conversion unit, power controller, liquid cooling unit, and liquid cooling controller;

[0038] The liquid cooling unit is connected to the power conversion unit, and the power controller is connected to the liquid cooling control; wherein the power controller is configured to configure the liquid cooling unit and the power conversion unit using the method described in any one of the first aspects; and the liquid cooling controller is configured to configure the liquid cooling unit and the power conversion unit using the method described in any one of the second aspects.

[0039] One of the above technical solutions has the following advantages or beneficial effects:

[0040] This application provides a liquid cooling unit configuration method applied to a power controller, which is configured to control a power conversion unit. The method includes: sending integration information to the liquid cooling controller, the integration information being used to characterize the integration type of the power conversion unit; receiving a matching result fed back by the liquid cooling controller, the matching result being obtained by the liquid cooling controller based on the integration information and model information, the model information being used to characterize the arrangement of the liquid cooling units; matching the liquid cooling units with the power conversion units based on the matching result; wherein, the liquid cooling controller obtains control logic based on the model information, the control logic being configured to control the liquid cooling units to cool the power conversion units. The liquid cooling unit configuration method provided in this application can match the power conversion unit according to the integration type of the power conversion unit and the arrangement of the liquid cooling units. Only when the two information match can the liquid cooling unit connect to the power conversion unit and cool it, avoiding the operation of the liquid cooling unit and the power conversion unit under mismatch, which could lead to faults such as module overheating and excessive ambient temperature in the energy storage system.

[0041] This application also provides a liquid cooling unit configuration method applied to a liquid cooling controller. The liquid cooling controller is configured to control the liquid cooling unit. The method includes: acquiring integration information, which is sent by a power controller and is used to characterize the integration type of the power conversion unit; matching the integration information with the model information of the liquid cooling unit to obtain a matching result; and sending the matching result to the power controller so that the power controller matches the liquid cooling unit with the power conversion unit. The model information characterizes the arrangement of the liquid cooling unit, and the liquid cooling controller acquires control logic based on the model information. The control logic is configured to control the liquid cooling unit to cool the power conversion unit. The liquid cooling unit configuration method provided in this application can match the integration type of the power conversion unit with the arrangement of the liquid cooling unit. Only when the two information match can the liquid cooling unit connect to the power conversion unit and cool it, avoiding mismatched operation between the liquid cooling unit and the power conversion unit, which could lead to module overheating, excessive ambient temperature, and other faults in the energy storage system. Attached Figure Description

[0042] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0043] Figure 1 This is a schematic diagram illustrating the steps of a liquid cooling unit configuration method applied to the power controller side, as provided in an embodiment of this application.

[0044] Figure 2 A schematic diagram of the module connection between the power controller and the liquid cooling controller provided in an embodiment of this application;

[0045] Figure 3A schematic diagram illustrating the module connection between the power controller and the liquid cooling controller provided in some embodiments of this application;

[0046] Figure 4 A schematic diagram illustrating the module connection between the power controller and the liquid cooling controller provided for other embodiments of this application;

[0047] Figure 5 A schematic diagram showing the module connection between the power conversion unit and the liquid cooling controller provided in an embodiment of this application;

[0048] Figure 6 A schematic diagram of a liquid cooling unit configuration method applied to the liquid cooling controller side provided in an embodiment of this application;

[0049] Figure 7 This is a schematic diagram of the interaction method between the power controller and the liquid cooling controller provided in an embodiment of this application. Detailed Implementation

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0051] The specific implementation methods of this application are illustrated below through examples:

[0052] like Figure 1 As shown, this application provides a liquid cooling unit configuration method applied to a power controller, wherein the power controller is configured to control a power conversion unit, and the method includes:

[0053] S1: Send integration information to the liquid cooling controller. The integration information is used to characterize the integration type of the power conversion unit.

[0054] like Figure 2As shown in this embodiment, the method for sending integration information to the liquid cooling controller includes: obtaining the communication mode between the power controller and the liquid cooling controller; and, if the power controller and the liquid cooling controller communicate directly, directly sending the integration information to the liquid cooling controller. Specifically, the power conversion unit includes a PCS (Power Conversion System), the power controller controls the PCS (i.e., the PCS controller), and the liquid cooling controller controls the liquid cooling unit. When the PCS controller and the liquid cooling controller communicate via wired or wireless connection, they can communicate directly. After obtaining the integration information, the PCS controller directly sends the integration information to the liquid cooling controller.

[0055] like Figure 3 As shown, in some embodiments of this application, the method for sending integration information to the liquid cooling controller includes: obtaining the communication method between the power controller and the liquid cooling controller; and, when the power controller and the liquid cooling controller communicate through a local controller, sending the integration information to the liquid cooling controller through the local controller. Specifically, when the PCS controller and the liquid cooling controller do not communicate directly via wired or wireless means, the local controller can be used to achieve information transmission between the two. After the PCS controller obtains the integration information, it first sends the integration information to the local controller, and the local controller, after obtaining the integration information, directly sends it to the liquid cooling controller.

[0056] It's important to note that the local controller is a distributed control unit within an energy storage system, responsible for local monitoring, control, and management. A local controller is typically associated with a specific energy storage device or unit, responsible for monitoring and controlling its operation. The local controller communicates and coordinates with sensors, electronics, and protection devices within the energy storage system to ensure safe operation and optimized performance. The local controller can monitor various parameters of the energy storage system in real time through sensors and monitoring equipment, such as voltage, current, temperature, and capacity. It can also control the charging and discharging process of the energy storage system according to control algorithm instructions. Simultaneously, the local controller can record operational data of the energy storage system, such as charge / discharge cycles, energy conversion efficiency, and energy storage capacity.

[0057] like Figure 4As shown, in some other embodiments of this application, the method for sending integration information to the liquid cooling controller includes: obtaining the communication mode between the power controller and the liquid cooling controller; and, when the power controller and the liquid cooling controller communicate through the energy storage system controller, sending the integration information to the liquid cooling controller through the energy storage system controller. Specifically, when the PCS controller and the liquid cooling controller are not directly connected and communicate via wired or wireless means, and it is also impossible to achieve information transmission between the two parties using a local controller, the PCS controller can send the integration information to the energy storage system controller after obtaining it, and the energy storage system controller can then send the integration information to the liquid cooling controller after obtaining it.

[0058] It's important to note that the energy storage system controller (ESS controller) is the central control unit of the entire energy storage system, responsible for overall monitoring, control, and management. As a higher-level controller than the local controllers, the ESS controller can monitor and control multiple local controllers, coordinating their operations to achieve collaborative operation of the entire energy storage system. ESS controllers typically possess more advanced control algorithms and intelligent optimization strategies for global energy management and system performance optimization. Furthermore, the ESS controller can communicate and coordinate with the external power grid, loads, and other energy systems to achieve overall integration and optimized operation of the energy storage system.

[0059] In the embodiments of this application, the integration types include centralized and embedded types. Embedded PCS is typically used in small-scale energy storage systems, such as residential or small commercial energy storage systems. Embedded PCS typically integrates power conversion devices into the main body of the energy storage system, resulting in a more compact form. Embedded PCS usually has a simpler control strategy, primarily used for the control and management of individual energy storage units. They also typically have simpler communication and monitoring functions, mainly used for local monitoring and control. Embedded PCS is generally directly embedded into the battery cluster, as part of the battery cluster; that is, the embedded PCS is tightly integrated with the battery modules or battery components inside the battery cluster. Therefore, the embedded PCS is uniformly arranged with the battery cluster and shares the liquid cooling unit with it.

[0060] In this application embodiment, centralized PCS is typically used in large-scale energy storage systems, such as grid-level energy storage stations or industrial-grade energy storage systems. Centralized PCS requires more complex control strategies to coordinate and manage power flow and collaborative operation among multiple energy storage units. Centralized PCS also typically requires more robust communication and monitoring systems to enable remote monitoring and management of multiple energy storage units. In other words, the centralized PCS is a separate device independent of the battery cluster, usually located in a centralized control room or cabinet near the battery cluster. Therefore, the centralized PCS is arranged separately from the battery cluster and connected to a different liquid-cooling unit.

[0061] In this embodiment of the application, the method for obtaining the integration type includes: obtaining the control strategy of the power conversion unit; if the control strategy includes power allocation for multiple power conversion units, determining that the integration type of the power conversion unit is centralized; if the control strategy only includes control of a single power conversion unit, determining that the integration type of the power conversion unit is embedded.

[0062] In some embodiments of this application, the integration type is input externally. That is, after the power conversion unit is installed, the operator inputs the integration type of the power conversion unit into the power controller through an input device. The power controller then organizes the integration type into integration information and sends it to the liquid cooling controller.

[0063] Understandably, due to the different integration types of centralized and embedded PCS and their different connection methods with the liquid cooling unit, in order to avoid incompatibility between the liquid cooling unit and the PCS, the PCS controller can send integration information to the liquid cooling controller through direct and indirect communication methods after the PCS is integrated in the energy storage system. This provides multiple transmission methods, high transmission efficiency, and high security and reliability.

[0064] like Figure 5 As shown in some embodiments of this application, the power conversion unit is integrated into the energy storage management system and directly controlled by the energy storage system controller. The energy storage system controller is the central control unit of the entire energy storage system, responsible for the overall monitoring, control, and management of the energy storage system. Therefore, when the power conversion unit is controlled by the energy storage system controller, the energy storage system controller can directly obtain the integration information of the power conversion unit and send the integration information directly to the liquid cooling controller, thereby improving the efficiency of information transmission between the power conversion unit and the liquid cooling controller.

[0065] S2: Receive the matching result from the liquid cooling controller. The matching result is obtained by the liquid cooling controller based on the integration information and model information. The model information is used to characterize the arrangement of the liquid cooling units. Specifically, the liquid cooling controller matches the integration information with the model information to obtain the matching result. It is conceivable that the arrangement of the liquid cooling units will differ depending on the integration type of the PCS. When the PCS integration type is centralized, the PCS and battery cluster are separate. Therefore, the liquid cooling unit has two systems: one connected to the battery cluster for cooling the battery cluster, and the other connected to the PCS for cooling the PCS. When the PCS integration type is embedded, the PCS and battery cluster are integrated together. Therefore, the PCS and battery cluster share a single liquid cooling unit. The liquid cooling controller feeds back the matching result to the PCS controller in the same way as the PCS controller's transmission method, which will not be elaborated further in this embodiment.

[0066] Understandably, by matching the integrated information and model information through the liquid cooling controller, the power conversion unit and the liquid cooling unit can be effectively paired, thus avoiding overheating and other faults caused by the liquid cooling unit's inability to cool the power conversion unit.

[0067] S3: Based on the matching results, the liquid cooling unit is matched with the power conversion unit. The liquid cooling controller obtains control logic based on the model information, and this control logic is configured to control the liquid cooling unit to cool the power conversion unit. Specifically, after obtaining the PCS integration type, the liquid cooling controller matches it with the arrangement of the liquid cooling units and feeds the matching result back to the PCS controller. The PCS controller determines whether to activate the PCS based on the matching result. Because the liquid cooling unit arrangements differ, the control logic for controlling the liquid cooling units also differs. In a centralized PCS, the liquid cooling unit has two systems for cooling the battery cluster and the PCS respectively. Therefore, the two systems need to integrate different sensors and control units to obtain different data for separate control. In an embedded PCS, the liquid cooling unit has only one system, requiring only unified control. The liquid cooling controller's storage unit stores two control logics, one for controlling the centralized PCS and the other for the embedded PCS. When it is determined that the integration type of the PCS is centralized and matched with the liquid cooling unit, the liquid cooling controller downloads or calls the first control logic; when it is determined that the integration type of the PCS is embedded and matched with the liquid cooling unit, the liquid cooling controller downloads or calls the second control logic.

[0068] Understandably, by obtaining different control logics based on the different integration methods of the PCS and the liquid cooling unit, the liquid cooling unit can be controlled to effectively cool the PCS, thus avoiding malfunctions caused by the PCS failing to be effectively cooled due to mismatched control logic.

[0069] In summary, the liquid cooling unit configuration method provided in this application, applied to the power controller side, sends the integration type of the power conversion unit to the liquid cooling controller through the power controller. The liquid cooling controller matches the integration type with the model information of the liquid cooling unit to obtain the corresponding control logic to control the liquid cooling unit to cool the power conversion unit, thereby avoiding failure due to mismatched control logic causing the PCS to fail to be effectively cooled.

[0070] like Figure 6 As shown, this application provides a liquid cooling unit configuration method, applied to a liquid cooling controller, wherein the liquid cooling controller is configured to control the liquid cooling unit, and the method includes:

[0071] B1: Obtain integration information. This integration information is sent by the power controller and is used to characterize the integration type of the power conversion unit. Specifically, the power controller sends the integration information to the liquid-cooled controller either directly or through a local controller and the energy storage system. After parsing the integration information, the liquid-cooled controller obtains the integration type of the power conversion unit, which includes centralized and embedded types.

[0072] B2: Match the integration information with the model information of the liquid cooling unit to obtain the matching result. Specifically, after obtaining the integration type of the conversion unit, confirm the model information of the liquid cooling unit. The model information can be stored in advance or entered by staff.

[0073] In this embodiment, the model information is used to characterize the arrangement of the liquid cooling units. The arrangement includes a first type and a second type. When the liquid cooling units are arranged in the first type, they are configured to cool the power conversion unit (PCS) of a centralized type. When the liquid cooling units are arranged in the second type, they are configured to cool the power conversion unit of an embedded type. Specifically, since the control methods of the first and second type liquid cooling units are different, their control logic is also different. The first type of liquid cooling unit is used to cool the centralized PCS. The first type of liquid cooling unit has two systems, one for cooling the battery cluster and the other for cooling the centralized PCS. Therefore, the first type of liquid cooling unit needs to integrate different sensors and control units to obtain different data for separate control. The second type of liquid cooling unit is used to cool the embedded PCS. The second type of liquid cooling unit has only one system, requiring only unified control. The liquid cooling controller's storage unit stores two control logics, used to control the first type of liquid cooling unit and the second type of liquid cooling unit, respectively. When the liquid cooling unit layout is determined to be of the first type, the liquid cooling controller downloads or calls the first control logic; when the liquid cooling unit layout is determined to be of the second type, the liquid cooling controller downloads or calls the second control logic.

[0074] B3: The matching result is sent to the power controller so that the power controller can match the liquid cooling unit with the power conversion unit. Specifically, the liquid cooling controller sends the matching result to the power controller. If the matching result indicates that the power conversion unit and the liquid cooling unit are matched, and the liquid cooling controller has already downloaded the control logic, the power controller controls the power conversion unit to start, so that the power conversion unit and the liquid cooling unit are matched. If the matching result indicates that the power conversion unit and the liquid cooling unit are not matched, a fault signal is issued so that the staff can perform timely maintenance and avoid failure.

[0075] In summary, the liquid cooling unit configuration method provided in this application, applied to the liquid cooling controller side, matches the integration type sent by the power controller with the model information of the liquid cooling unit. After successful matching, the corresponding control logic is obtained to control the liquid cooling unit to cool the power conversion unit, thereby avoiding failure due to mismatched control logic causing the PCS to fail to be effectively cooled.

[0076] like Figure 7 As shown in the figure, this application embodiment provides a liquid cooling unit configuration method, the method including:

[0077] F1: The power controller sends integration information to the liquid-cooled controller. This integration information characterizes the integration type of the power conversion unit. Specifically, before sending the integration information, the communication method between the power controller and the liquid-cooled controller is confirmed. If the power controller and the liquid-cooled controller are directly connected, the power controller sends the integration information directly to the liquid-cooled controller after receiving it. If the power controller and the liquid-cooled controller are connected through a local controller, the power controller sends the integration information to the local controller first, and the local controller then sends it directly to the liquid-cooled controller. If the power controller and the liquid-cooled controller are connected through an energy storage system controller, the power controller can send the integration information to the energy storage system controller after receiving it, and the energy storage system controller then sends it to the liquid-cooled controller.

[0078] F2: The liquid cooling controller receives integration information sent by the power controller. Specifically, the liquid cooling controller receives integration information directly or indirectly generated by the power controller and temporarily stores it for subsequent matching.

[0079] F3: The liquid cooling controller matches the integration information with the model information of the liquid cooling unit to obtain a matching result. The model information is used to characterize the layout of the liquid cooling unit. Specifically, after obtaining the integration type of the conversion unit, the model information of the liquid cooling unit is confirmed. The model information can be stored in advance or entered by staff. The model information is used to characterize the layout of the liquid cooling unit, which includes a first type and a second type. When the liquid cooling unit is arranged in the first type, it is configured to cool the power conversion unit with a centralized integration type; when the liquid cooling unit is arranged in the second type, it is configured to cool the power conversion unit with an embedded integration type.

[0080] F4: The liquid cooling controller sends the matching result to the power controller. Specifically, depending on the communication method between the power controller and the liquid cooling controller, the liquid cooling unit feeds back the matching result to the power controller.

[0081] F5: The power controller receives the matching result from the liquid cooling controller. Specifically, depending on the communication method with the liquid cooling controller, the power controller directly or indirectly receives the matching result, parses the matching result, and obtains the specific matching information.

[0082] F6: The power controller matches the liquid cooling unit with the power conversion unit based on the matching results. The liquid cooling controller obtains control logic based on the model information, and this control logic is configured to control the liquid cooling unit to cool the power conversion unit. Specifically, the liquid cooling controller sends the matching results to the power controller. If the matching results indicate that the power conversion unit and the liquid cooling unit are matched, and the liquid cooling controller has already downloaded its control logic, the power controller controls the power conversion unit to start, thus completing the matching process. If the matching results indicate that the power conversion unit and the liquid cooling unit are not matched, a fault signal is issued to allow personnel to perform timely maintenance and prevent malfunctions.

[0083] In this embodiment, the control methods of the first type and the second type of liquid cooling units are different, and therefore their control logic is also different. The first type of liquid cooling unit is used to cool the centralized PCS. The first type of liquid cooling unit has two systems, one for cooling the battery cluster and the other for cooling the centralized PCS. Therefore, the first type of liquid cooling unit needs to integrate different sensors and control units to obtain different data for separate control. The second type of liquid cooling unit is used to cool the embedded PCS. The second type of liquid cooling unit has only one system, requiring only unified control. Two control logics are stored in the liquid cooling controller's storage unit, used to control the first type of liquid cooling unit and the second type of liquid cooling unit, respectively. When the liquid cooling unit's arrangement is determined to be the first type, the liquid cooling controller downloads or calls the first control logic; when the liquid cooling unit's arrangement is determined to be the second type, the liquid cooling controller downloads or calls the second control logic.

[0084] In summary, the liquid cooling unit configuration method provided in this application involves matching the integration type sent by the power controller with the model information of the liquid cooling unit through a liquid cooling controller. After successful matching, the corresponding control logic is obtained to control the liquid cooling unit to cool the power conversion unit, thereby avoiding failures caused by the PCS not being effectively cooled due to mismatched control logic.

[0085] like Figure 2 , Figure 3 and Figure 4As shown in the illustration, this application provides an energy storage system, including: a power conversion unit, a power controller, a liquid cooling unit, and a liquid cooling controller; the liquid cooling unit is connected to the power conversion unit, and the power controller is connected to the liquid cooling controller; wherein, the power controller is configured to configure the liquid cooling unit and the power conversion unit using the method as described in any of the first aspects; or, the liquid cooling controller is configured to configure the liquid cooling unit and the power conversion unit using the method as described in any of the second aspects. Specifically, the specific working principles and steps of the power controller and the liquid cooling controller have been described in the above embodiments, and will not be repeated in detail here.

[0086] The above provides a detailed description of a liquid cooling unit configuration method and energy storage system provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for configuring a liquid cooling unit, characterized in that, Applied to a power controller configured to control a power conversion unit, the method includes: The integration information is sent to the liquid cooling controller, and the integration information is used to characterize the integration type of the power conversion unit; The system receives a matching result from the liquid cooling controller, which is obtained by the liquid cooling controller based on the integration information and the model information. The model information is used to characterize the arrangement of the liquid cooling unit. The liquid cooling controller obtains control logic based on the model information, and the control logic is configured to control the liquid cooling unit to cool the power conversion unit. The liquid cooling unit is matched with the power conversion unit based on the matching result.

2. The liquid cooling unit configuration method as described in claim 1, characterized in that, The method for sending integrated information to the liquid cooling controller includes: Obtain the communication method between the power controller and the liquid cooling controller; When the power controller and the liquid cooling controller communicate directly, the integrated information is sent directly to the liquid cooling controller.

3. The liquid cooling unit configuration method as described in claim 1, characterized in that, The method for sending integrated information to the liquid cooling controller includes: Obtain the communication method between the power controller and the liquid cooling controller; When the power controller and the liquid cooling controller communicate through a local controller, the integration information is sent to the liquid cooling controller through the local controller.

4. The liquid cooling unit configuration method as described in claim 1, characterized in that, The method for sending integrated information to the liquid cooling controller includes: Obtain the communication method between the power controller and the liquid cooling controller; When the power controller and the liquid cooling controller communicate through the energy storage system controller, the integrated information is sent to the liquid cooling controller through the energy storage system controller.

5. The liquid cooling unit configuration method as described in claim 1, characterized in that, The integration type includes centralized and embedded types. The centralized type is used to characterize that the power conversion unit is arranged separately from the battery cluster, and the power conversion unit is connected to a different liquid cooling unit than the battery cluster. The embedded feature is used to characterize that the power conversion unit and the battery cluster are arranged in a unified manner, and that the power conversion unit and the battery cluster share the liquid cooling unit.

6. The liquid cooling unit configuration method as described in claim 5, characterized in that, The method for obtaining the integration type includes: Obtain the control strategy of the power conversion unit; When the control strategy includes power allocation for multiple power conversion units, the integration type of the power conversion units is determined to be centralized. When the control strategy includes only the control of a single power conversion unit, the integration type of the power conversion unit is determined to be the embedded type. Alternatively, the integration type may be input from an external source.

7. A method for configuring a liquid cooling unit, characterized in that, Applied to a liquid cooling controller configured to control the liquid cooling unit, the method includes: The integration information is obtained and sent by the power controller. The integration information is used to characterize the integration type of the power conversion unit. Obtain the model information, which is used to characterize the arrangement of the liquid cooling unit; Based on the model information, the control logic is configured to control the liquid cooling unit to cool the power conversion unit. The integrated information is matched with the model information of the liquid cooling unit to obtain a matching result; The matching result is sent to the power controller so that the power controller matches the liquid cooling unit with the power conversion unit.

8. The liquid cooling unit configuration method as described in claim 7, characterized in that, The arrangement includes a first type and a second type. When the arrangement of the liquid cooling unit is the first type, the liquid cooling unit is configured to cool the power conversion unit, which is of the centralized integration type. When the arrangement of the liquid cooling unit is of the second type, the liquid cooling unit is configured to cool the power conversion unit, which is of the embedded integration type.

9. The liquid cooling unit configuration method as described in claim 8, characterized in that, The method for the liquid cooling controller to obtain control logic based on the model information includes: When the arrangement of the liquid cooling unit is determined to be the first type, the first control logic is matched to the liquid cooling unit; When the arrangement of the liquid cooling unit is determined to be the second type, the second control logic is matched to the liquid cooling unit.

10. An energy storage system, characterized in that, include: Power conversion unit, power controller, liquid cooling unit, and liquid cooling controller; The liquid cooling unit is connected to the power conversion unit, and the power controller is connected to the liquid cooling control unit; wherein, the power controller is configured to configure the liquid cooling unit and the power conversion unit using the method described in any one of claims 1-6; the liquid cooling controller is configured to configure the liquid cooling unit and the power conversion unit using the method described in any one of claims 7-9.

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