Energy storage system, heat dissipation control method, device and storage medium

Abstract

The present application discloses an energy storage system, a heat dissipation control method, a device, and a storage medium, which relate to the field of battery heat dissipation technology. The system includes a plurality of battery clusters arranged in at least one row, a primary heat dissipation pipeline arranged in a one-to-one correspondence with the number of rows of battery clusters, a plurality of secondary heat dissipation pipelines arranged in a one-to-one correspondence within the battery cluster, a tertiary heat dissipation pipeline arranged in a one-to-one correspondence with the plurality of battery modules within the battery cluster, and a control module; the primary heat dissipation pipeline includes a primary water supply pipeline and a primary return water pipeline; the secondary heat dissipation pipeline includes a secondary water supply pipeline connected to the primary water supply pipeline, and a secondary return water pipeline connected to the primary return water pipeline; the water inlet and water outlet of the tertiary heat dissipation pipeline are respectively connected to the corresponding secondary water supply pipeline and secondary return water pipeline; the control module is used to balance the flow rate of the cooling medium output by the secondary water supply pipeline on the same primary heat dissipation pipeline. The heat dissipation control method, device, and medium apply the above system to improve the uniformity of the cooling medium flow distribution.

Description

Technical Field

[0001] The present application relates to the field of battery heat dissipation technology, and in particular to an energy storage system, a heat dissipation control method, a device, and a storage medium. Background Art

[0002] Energy storage technology is a crucial component of smart grids and one of their supporting technologies. Numerous battery cells form a battery module, multiple battery modules form a battery cluster, multiple battery clusters form a battery stack, and at least one battery stack ultimately forms the entire energy storage system. The fundamental unit of an energy storage system is the battery cell. Temperature differences within the battery cells significantly impact system lifespan, SOH, and system balance. To reduce system cell temperature differences and extend system lifespan, the temperature differences between different battery cells within the energy storage system must be controlled within a reasonable range. Therefore, a liquid cooling system is typically used to control the flow distribution of each unit in the energy storage system's pipelines, thereby controlling the system's temperature difference. However, in related technologies, the flow distribution control effectiveness of liquid cooling systems is poor, resulting in poor system lifespan and stability. Summary of the Invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, an energy storage system, a heat dissipation control method, a device, and a storage medium are proposed to improve the uniformity of flow distribution in the energy storage system, thereby improving the system life and stability.

[0004] According to an embodiment of the first aspect of the present application, an energy storage system is provided, comprising:

[0005] A battery cluster, wherein the battery cluster is provided in plurality and arranged in at least one row;

[0006] A primary heat dissipation pipeline, the primary heat dissipation pipeline being arranged in a one-to-one correspondence with the number of rows of the battery clusters, the primary heat dissipation pipeline comprising a primary water supply pipeline and a primary water return pipeline;

[0007] A secondary heat dissipation pipeline, wherein a plurality of the secondary heat dissipation pipelines are provided and are arranged in a one-to-one correspondence within the battery cluster; the secondary heat dissipation pipeline includes a secondary water supply pipeline connected to the primary water supply pipeline, and a secondary water return pipeline connected to the primary water return pipeline;

[0008] A three-stage heat dissipation pipeline, wherein the three-stage heat dissipation pipeline is provided in plurality and is arranged one-to-one with the multiple battery modules in the battery cluster, the water inlet of the three-stage heat dissipation pipeline is connected to the corresponding two-stage water supply pipeline, and the water outlet of the three-stage heat dissipation pipeline is connected to the two-stage return water pipeline;

[0009] A control module is used to balance the cooling medium flow output by each of the secondary water supply pipelines on the same primary heat dissipation pipeline.

[0010] According to an embodiment of the second aspect of the present application, a heat dissipation control method for an energy storage system is provided, the system comprising a battery cluster, a primary heat dissipation pipeline, a secondary heat dissipation pipeline, and a tertiary heat dissipation pipeline, wherein a plurality of battery clusters are provided and arranged in at least one row; the primary heat dissipation pipeline is arranged in a one-to-one correspondence with the number of rows of the battery clusters, the primary heat dissipation pipeline comprises a primary water supply pipeline and a primary return water pipeline; a plurality of secondary heat dissipation pipelines are provided and are arranged in a one-to-one correspondence within the battery cluster; the secondary heat dissipation pipeline comprises a secondary water supply pipeline connected to the primary water supply pipeline, and a secondary return water pipeline connected to the primary return water pipeline; a plurality of tertiary heat dissipation pipelines are provided and are arranged in a one-to-one correspondence with a plurality of battery modules within the battery cluster, the water inlet of the tertiary heat dissipation pipeline is connected to the corresponding secondary water supply pipeline, and the water outlet of the tertiary heat dissipation pipeline is connected to the secondary return water pipeline;

[0011] The method comprises:

[0012] Obtaining the cooling medium flow rate output by each of the secondary water supply pipelines on the same primary heat dissipation pipeline;

[0013] According to the sizes of the multiple cooling medium flow rates, the cooling medium flow rates output by the corresponding multiple secondary water supply pipelines are balanced.

[0014] According to an embodiment of the third aspect of the present application, an electronic device is proposed, comprising: at least one processor, and a memory communicatively connected to the at least one processor; wherein the memory stores instructions, and the instructions are executed by the at least one processor so that when the at least one processor executes the instructions, the heat dissipation control method of the energy storage system as described in any one of the second aspects is implemented.

[0015] According to an embodiment of the fourth aspect of the present application, a computer-readable storage medium is provided, wherein the computer-executable instructions are used to enable a computer to execute the heat dissipation method for an energy storage system as described in any one of the second aspects.

[0016] According to the above-mentioned embodiments of the present application, at least the following beneficial effects are achieved: by designing the primary heat dissipation pipeline, the secondary heat dissipation pipeline, and the tertiary heat dissipation pipeline, the cooling medium of the battery clusters in the same row are all gathered in the primary heat dissipation pipeline, and are respectively dispersed to each battery module by the secondary heat dissipation pipeline and the tertiary heat dissipation pipeline. Then, the cooling medium flow rate of each secondary heat dissipation pipeline can be automatically controlled by the control module, so that the cooling medium flow rate entering each row of battery clusters is in a balanced state, realizing row and graded management, improving the uniformity of cooling medium distribution in the energy storage system, and thereby improving the system life and stability.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 A schematic diagram of the system structure of the energy storage system according to an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the piping design of a single battery cluster of the energy storage system provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of a chiller unit of an energy storage system provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the process of the heat dissipation control method for the energy storage system provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of a flow linear control function of a heat dissipation control method for an energy storage system provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application.

[0025] Reference numerals:

[0026] Battery cluster 100, battery module 110,

[0027] Primary water supply pipeline 210, primary return water pipeline 220, secondary water supply pipeline 230, secondary return water pipeline 240, flow meter 250, solenoid valve 260,

[0028] Chiller 300, medium water supply port 310, medium water return port 320,

[0029] Fire protection system 400,

[0030] System power distribution cabinet 500. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0033] In addition, the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid blurring various aspects of the present disclosure.

[0034] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0035] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0036] Energy storage technology is a crucial component of smart grids and one of their supporting technologies. Numerous battery cells form a battery module, multiple battery modules form a battery cluster, multiple battery clusters form a battery stack, and at least one battery stack ultimately forms the entire energy storage system. The battery cell is the fundamental unit of an energy storage system. Temperature differences within the battery cells significantly impact system lifespan, SOH, and system balance. To minimize these temperature differences and extend system lifespan, the temperature differences between different battery cells within the energy storage system must be controlled within a reasonable range. While air cooling can be used for heat dissipation, the instability of airflow can easily lead to large temperature differences within the system, impacting system lifespan. Furthermore, air cooling's convective heat transfer efficiency is relatively low, making it unsuitable for the heat dissipation requirements of high-energy-density, high-rate systems. Furthermore, the module fan speed in air-cooled systems exhibits step-wise fluctuations, resulting in high system noise and high self-consumption. Therefore, a liquid cooling system is typically used to control the flow distribution of each unit in the pipeline of the energy storage system, thereby controlling the system temperature difference. However, in related technologies, the flow distribution control effect of the liquid cooling system is poor, which leads to poor system lifespan and stability. Based on this, the embodiments of the present application propose an energy storage system, a heat dissipation control method, an apparatus, and a storage medium, which can improve the uniformity of the flow distribution in the energy storage system, thereby improving the system lifespan and stability.

[0037] According to an embodiment of the present application, an energy storage system is proposed, referring to Figures 1 to 3 As shown, the energy storage system includes:

[0038] A battery cluster 100 , wherein the battery cluster 100 is provided in plurality and arranged in at least one row;

[0039] The first-level heat dissipation pipeline is provided in a one-to-one correspondence with the number of rows of the battery cluster 100, and includes a first-level water supply pipeline 210 and a first-level water return pipeline 220;

[0040] Secondary heat dissipation pipelines, multiple secondary heat dissipation pipelines are provided and are arranged one-to-one in the battery cluster 100; the secondary heat dissipation pipelines include a secondary water supply pipeline 230 connected to the primary water supply pipeline 210, and a secondary water return pipeline 240 connected to the primary water return pipeline 220;

[0041] A plurality of three-stage heat dissipation pipes are provided and correspond one-to-one with the multiple battery modules 110 in the battery cluster 100. The water inlet of the three-stage heat dissipation pipe is connected to the corresponding secondary water supply pipe 230, and the water outlet of the three-stage heat dissipation pipe is connected to the secondary water return pipe 240;

[0042] The control module is used to balance the cooling medium flow output by each secondary water supply pipeline 230 on the same primary heat dissipation pipeline.

[0043] Therefore, by designing the primary, secondary, and tertiary heat dissipation pipelines, the cooling medium of the battery clusters 100 in the same row is all gathered in the primary heat dissipation pipeline, and is respectively distributed to each battery module 110 by the secondary and tertiary heat dissipation pipelines. Then, the cooling medium flow rate of each secondary heat dissipation pipeline can be automatically controlled by the control module, so that the cooling medium flow rate entering each row of battery clusters 100 is in a balanced state, realizing row and graded management, improving the uniformity of cooling medium distribution in the energy storage system, and thereby improving the system life and stability.

[0044] It should be noted that when multiple rows of battery clusters 100 are provided, multiple primary, secondary, and tertiary cooling pipes are provided. The cooling medium enters the primary water supply pipe 210 and enters each battery cluster 100 through the secondary water supply pipe 230. The cooling medium is then diverted through the secondary water supply pipe 230 to flow to each connected tertiary cooling pipe. Each tertiary cooling pipe then exchanges heat with the corresponding battery module 110. After heat exchange, the cooling medium exits the tertiary cooling pipe and converges through the secondary return pipe 240 to the primary return pipe 220 for output. In this manner, the cooling medium achieves a single inlet and a single outlet.

[0045] It should be noted that the cooling medium adopts a volume ratio of 50% water + 50% ethylene glycol, which can effectively play an antifreeze role in low temperature environments.

[0046] It should be noted that the three-stage heat dissipation pipeline is a liquid cooling plate channel provided at the bottom of the battery module 110. This embodiment of the present application does not impose any limitation on this.

[0047] It should be noted that when the difference in inlet flow rate of each battery cluster 100 can be controlled within a certain range, the temperature difference between the system battery clusters 100 can be effectively reduced, thereby being able to control the temperature difference of the entire system battery cells within the allowable range; at this time, it can be considered that the cooling medium flow rate at the inlet of each secondary heat dissipation pipeline on the same primary heat dissipation pipeline is in a balanced state.

[0048] It should be noted that a solenoid valve 260 can be set at the water inlet of the secondary water supply pipeline 230 of each secondary heat dissipation pipeline (i.e., the connection with the primary water supply pipeline 210) to control the flow rate, and a flow meter 250 is designed to perform flow statistics at the water inlet. The control module communicates with the flow meter 250 and the solenoid valve 260 to realize remote automatic control. The flow meter 250 can periodically feedback the changes in flow rate, and can also notify the control module for control when the flow rate changes.

[0049] It should be noted that the embodiment of the present application does not limit the number of secondary heat dissipation pipelines corresponding to each primary heat dissipation pipeline. Preferably, for the embodiment of the present application, one primary heat dissipation pipeline can correspond to 1 to 4 secondary heat dissipation pipelines.

[0050] It is understandable that referring to Figure 2 As shown, a flow meter 250 and a solenoid valve 260 are provided at the water inlet of each secondary water supply pipeline 230 or the water outlet of each secondary water return pipeline 240. The control module is used to:

[0051] In response to the cooling medium flow rate counted by each flow meter 250;

[0052] Calculate in real time the flow rate difference between the maximum cooling medium flow rate and the minimum cooling medium flow rate outputted from the plurality of secondary water supply pipelines 230 on the same primary water supply pipeline 210;

[0053] According to the flow rate difference, the solenoid valve 260 corresponding to the minimum cooling medium flow rate is continuously adjusted until the cooling medium flows output by the multiple secondary water supply pipelines 230 on the same primary water supply pipeline 210 are in a balanced state.

[0054] It should be noted that the flow meter 250 and the solenoid valve 260 can be set separately, one at the water inlet and the other at the water outlet, or they can be set together at the water inlet or the water outlet to count the water inlet and control the cooling medium flow at the water inlet. In this regard, the embodiments of the present application are not limited. Taking the example of the flow meter 250 and the solenoid valve 260 both being set on the secondary water supply pipeline 230, according to the flow difference, the solenoid valve 260 of the secondary water supply pipeline 230 corresponding to the minimum cooling medium flow is continuously adjusted, so that the cooling medium flow diverted to the secondary water supply pipeline 230 on each branch on the same primary water supply pipeline 210 can be adjusted.

[0055] It should be noted that when the flow rate of the cooling medium counted by the flow meter 250 changes, the flow rate difference needs to be recalculated. Continuous adjustment is performed by sending a PWM signal through the control module for continuous control.

[0056] To be clarified, Figure 2 The arrows shown indicate the flow of the cooling medium.

[0057] It is understandable that referring to Figure 1 and Figure 3 In the illustrated embodiment, the battery clusters 100 are arranged in two rows, and the energy storage system further includes a water cooling unit having two groups of inlet and outlet interfaces, each group of inlet and outlet interfaces correspondingly connected to a primary heat dissipation pipeline.

[0058] For example, refer to Figure 3 In the embodiment shown, the chiller 300 is provided with two inlet and outlet interfaces, each of which includes a medium water supply port 310 and a medium return water port 320, the medium return water port 320 is connected to the primary return water pipeline 220, and the medium water supply port 310 is connected to the primary water supply pipeline 210, thereby realizing single inlet and single outlet of the cooling medium.

[0059] For example, refer to Figure 1 In the embodiment shown, the system is arranged in a container, and key equipment such as a fire protection system 400 and a system power distribution cabinet 500 are also integrated into the container.

[0060] According to an embodiment of the present application, a heat dissipation control method for an energy storage system is also proposed. The heat dissipation control method applies the above energy storage system, referring to Figure 4 As shown, the heat dissipation control method includes:

[0061] Step S100: Obtain the cooling medium flow rate output by each secondary water supply pipeline 230 on the same primary heat dissipation pipeline.

[0062] Step S200: Balancing the cooling medium flows outputted by the corresponding multiple secondary water supply pipelines 230 according to the sizes of the multiple cooling medium flows.

[0063] It is understandable that step S200, balancing the cooling medium flow output by the corresponding multiple secondary water supply pipelines 230 according to the sizes of the multiple cooling medium flow rates, includes: obtaining the cooling medium flow rate counted by each flow meter 250 in real time; calculating the flow difference between the maximum cooling medium flow rate and the minimum cooling medium flow rate output by the multiple secondary water supply pipelines 230 on the same primary water supply pipeline 210; and continuously adjusting the solenoid valve 260 corresponding to the minimum cooling medium flow rate according to the flow difference until the cooling medium flow rates output by the multiple secondary water supply pipelines 230 on the same primary water supply pipeline 210 are in a balanced state.

[0064] It can be understood that calculating the flow difference between the maximum cooling medium flow and the minimum cooling medium flow outputted from multiple secondary water supply pipelines 230 on the same primary water supply pipeline 210 includes: subtracting the maximum cooling medium flow outputted from multiple secondary water supply pipelines 230 on the same primary water supply pipeline 210 from the minimum cooling medium flow to obtain a real-time cooling medium flow difference; and dividing the cooling medium flow difference by the maximum cooling medium flow to obtain a flow difference.

[0065] For example, flow rate difference = (maximum inlet flow rate - minimum inlet flow rate) / maximum inlet flow rate * 100%. By expressing the flow rate difference as a percentage, the relative trend of the cooling medium flow rate change can be obtained, thereby improving the accuracy of the adjustment.

[0066] It is understandable that, based on the flow difference, the solenoid valve 260 of the secondary water supply pipeline 230 corresponding to the minimum cooling medium flow is continuously adjusted, including: comparing the flow difference with the preset ratio interval to determine the flow linear control function to be adjusted; the flow linear control function is used to characterize the changing trend of the flow difference; according to the flow linear control function, the solenoid valve 260 corresponding to the minimum cooling medium flow is continuously increased to balance the cooling medium flow output from multiple secondary water supply pipelines 230 on the same primary water supply pipeline 210.

[0067] For example, refer to Figure 5 In the embodiment shown, when the flow difference is between 0 and 20, the linear function f1 of the first segment is selected to determine whether the adjusted cooling medium flow matches the linear function of this segment. During control, the control module sends a PWM control signal instruction to the solenoid valve 260 in real time for control. It should be noted that during the adjustment process, if the solenoid valve 260 being adjusted is not the cooling medium with the minimum flow rate, the solenoid valve 260 with the minimum cooling medium flow rate will be re-determined for adjustment. Since it is a continuous adjustment and not a one-step adjustment, the temperature difference changes slowly during the adjustment process, thereby improving the stability of the system.

[0068] Reference Figure 5 In the embodiment shown, three ratio intervals are provided, each ratio interval corresponds to a flow linear control function, and the three flow linear control functions are connected in sequence and the corresponding slopes increase.

[0069] For example, refer to Figure 5 In the illustrated embodiment, the three ratio intervals are [0, 20], [20, 40], and [40, 100]. As the flow rate difference ε changes, the slope of the corresponding linear flow control function increases. When ε = 0, the flow rates at all battery cluster inlets are equal, and the battery valve opening and closing degrees do not need to change. When ε = ε1, the battery valve at the minimum battery cluster inlet flow rate increases by 20%. When ε = ε2, the battery valve at the minimum battery cluster inlet flow rate increases by 40%. When ε = ε3, the battery valve at the minimum battery cluster inlet flow rate increases by 100%.

[0070] Define the differences in flow distribution at the inlets of different battery clusters ε1, ε2, and ε3. When the flow distribution difference is large, the opening and closing degree of the battery valve corresponding to the battery cluster with the minimum flow rate also increases accordingly to balance the distribution of the flow uniformity at the inlets of each battery cluster.

[0071] It should be noted that the embodiments of the present application do not limit the slope and specific expression of each flow linear control function. Those skilled in the art can obtain the specific expression of the flow linear control function through experiments based on the embodiments of the present application.

[0072] It is understandable that the present application also provides an electronic device, comprising at least one processor, and a memory communicatively connected to the at least one processor; wherein the memory stores instructions, and the instructions are executed by the at least one processor so that when the at least one processor executes the instructions, a heat dissipation control method of an energy storage system as described above is implemented.

[0073] The following combination Figure 6 The hardware structure of the computer device is described in detail. The electronic device includes: a processor 610, a memory 620, an input / output interface 630, a communication interface 640 and a bus 650.

[0074] The processor 610 may be implemented as a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is configured to execute relevant programs to implement the technical solutions provided by the embodiments of the present disclosure.

[0075] The memory 620 can be implemented in the form of ROM (Read Only Memory), static storage device, dynamic storage device, or RAM (Random Access Memory). The memory 620 can store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 620, and the processor 610 calls and executes the model training method of the embodiment of the present disclosure or the emotional message generation method of the embodiment of the present disclosure;

[0076] Input / output interface 630, used to implement information input and output;

[0077] Communication interface 640, used to implement communication interaction between the device and other devices, which can be achieved through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WiFi, Bluetooth, etc.); and bus 650, which transmits information between various components of the device (such as processor 610, memory 620, input / output interface 630 and communication interface 640);

[0078] The processor 610 , the memory 620 , the input / output interface 630 , and the communication interface 640 are connected to each other in communication within the device via a bus 650 .

[0079] An embodiment of the present invention also provides a storage medium, which is a computer-readable storage medium. The computer-readable storage medium stores computer-executable instructions, which are used to enable a computer to execute the model training method of the embodiment of the present disclosure or the emotional message generation method of the embodiment of the present disclosure.

[0080] The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely arranged relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0081] It is understandable that the present invention further provides a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are used to execute the above-mentioned heat dissipation control method.

[0082] Those skilled in the art will appreciate that all or some of the steps and systems in the method disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, and the computer-readable medium can include computer storage media (or non-transitory media) and communication media (or temporary media). As known to those skilled in the art, the term computer storage media is included in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data) and is volatile and non-volatile, removable, and non-removable. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory, or other memory technology, CD-ROM, digital versatile disks (DVD), or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage, or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0083] The embodiments described in the embodiments of the present invention are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art will know that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0084] Those skilled in the art will appreciate that all or some of the steps in the methods, systems, and functional modules / units in the devices disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof.

[0085] The terms "comprises" and "having" and any variations thereof in the description of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes 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 these processes, methods, products or apparatuses.

[0086] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the above implementation. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. An energy storage system, characterized in that: include: A battery cluster, wherein the battery cluster is provided in plurality and arranged in at least one row; A primary heat dissipation pipeline, the primary heat dissipation pipeline being arranged in a one-to-one correspondence with the number of rows of the battery clusters, the primary heat dissipation pipeline comprising a primary water supply pipeline and a primary water return pipeline; A secondary heat dissipation pipeline, wherein a plurality of the secondary heat dissipation pipelines are provided and are arranged in a one-to-one correspondence within the battery cluster; the secondary heat dissipation pipeline includes a secondary water supply pipeline connected to the primary water supply pipeline, and a secondary water return pipeline connected to the primary water return pipeline; The water inlet of each secondary water supply pipeline or the water outlet of each secondary water return pipeline is provided with a flow meter and a solenoid valve; A three-stage heat dissipation pipeline, wherein the three-stage heat dissipation pipeline is provided in plurality and is arranged one-to-one corresponding to the multiple battery modules in the battery cluster, the water inlet of the three-stage heat dissipation pipeline is connected to the corresponding two-stage water supply pipeline, and the water outlet of the three-stage heat dissipation pipeline is connected to the corresponding two-stage water return pipeline; Control module for: Obtaining the cooling medium flow rate output by each of the secondary water supply pipelines on the same primary heat dissipation pipeline; Real-time acquisition of cooling medium flow rate counted by each flow meter; Calculating the flow rate difference between the maximum cooling medium flow rate and the minimum cooling medium flow rate outputted from the plurality of the secondary water supply pipelines on the same primary water supply pipeline; wherein the flow rate difference represents the relative trend of the cooling medium flow rate change; Comparing the flow difference with a preset ratio interval to determine a flow linear control function to be adjusted; the flow linear control function is used to characterize a change trend of the flow difference; According to the flow linear control function, the solenoid valve corresponding to the minimum cooling medium flow is continuously increased to balance the cooling medium flow output from the plurality of secondary water supply pipelines on the same primary water supply pipeline.

2. The energy storage system according to claim 1, characterized in that The battery clusters are arranged in two rows, and the energy storage system further comprises: a water cooling unit, wherein the water cooling unit is provided with two groups of inlet and outlet interfaces, and each group of the inlet and outlet interfaces is connected to one of the first-level heat dissipation pipelines.

3. A heat dissipation control method for an energy storage system, characterized in that: The energy storage system includes a battery cluster, a primary heat dissipation pipeline, a secondary heat dissipation pipeline, and a tertiary heat dissipation pipeline. The battery clusters are provided in plurality and arranged in at least one row. The primary heat dissipation pipeline is arranged in a one-to-one correspondence with the number of rows of the battery clusters. The primary heat dissipation pipeline includes a primary water supply pipeline and a primary return water pipeline. The secondary heat dissipation pipeline is provided in plurality and is arranged in a one-to-one correspondence within the battery cluster. The secondary heat dissipation pipeline includes a secondary water supply pipeline connected to the primary water supply pipeline, and a secondary return water pipeline connected to the primary return water pipeline. The tertiary heat dissipation pipeline is provided in plurality and is arranged in a one-to-one correspondence with the multiple battery modules within the battery cluster. The water inlet of the tertiary heat dissipation pipeline is connected to the corresponding secondary water supply pipeline, and the water outlet of the tertiary heat dissipation pipeline is connected to the secondary return water pipeline. The water inlet of each secondary water supply pipeline or the water outlet of each secondary water return pipeline is provided with a flow meter and a solenoid valve; The method comprises: Obtaining the cooling medium flow rate output by each of the secondary water supply pipelines on the same primary heat dissipation pipeline; Real-time acquisition of cooling medium flow rate counted by each flow meter; Calculating the flow rate difference between the maximum cooling medium flow rate and the minimum cooling medium flow rate outputted from the plurality of the secondary water supply pipelines on the same primary water supply pipeline; wherein the flow rate difference represents the relative trend of the cooling medium flow rate change; Comparing the flow difference with a preset ratio interval to determine a flow linear control function to be adjusted; the flow linear control function is used to characterize a change trend of the flow difference; According to the flow linear control function, the solenoid valve corresponding to the minimum cooling medium flow is continuously increased to balance the cooling medium flow output from the plurality of secondary water supply pipelines on the same primary water supply pipeline.

4. The heat dissipation control method of the energy storage system according to claim 3, characterized in that: The calculating of the flow rate difference between the maximum cooling medium flow rate and the minimum cooling medium flow rate outputted from the plurality of the secondary water supply pipelines on the same primary water supply pipeline comprises: subtracting the maximum cooling medium flow rate from the minimum cooling medium flow rate outputted from the plurality of the secondary water supply pipelines on the same primary water supply pipeline to obtain a real-time cooling medium flow rate difference; The cooling medium flow rate difference is divided by the maximum cooling medium flow rate to obtain a flow rate difference.

5. The heat dissipation control method of the energy storage system according to claim 4, characterized in that: There are three ratio intervals, each of which corresponds to a flow linear control function. The three flow linear control functions are connected in sequence and their corresponding slopes increase.

6. An electronic device, characterized in that: include: At least one processor, and a memory communicatively connected to the at least one processor; wherein the memory stores instructions, and the instructions are executed by the at least one processor so that the at least one processor implements the heat dissipation control method of the energy storage system according to any one of claims 3 to 5 when executing the instructions.

7. A computer-readable storage medium, characterized in that The storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the heat dissipation control method for the energy storage system according to any one of claims 3 to 5.

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