Control method and device of flow battery, computer equipment and storage medium

Abstract

The invention relates to a control method and device of a flow battery, computer equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring the electrolyte flow of a target electrode of the flow battery; under the condition that the electrolyte flow is smaller than a first preset threshold value, the rotating speed of a power assembly corresponding to the target electrode is increased, so that the electrolyte flow of the target electrode is increased; obtaining the positive and negative electrode pressure difference of the flow battery; and adjusting the rotating speed of a power assembly corresponding to the electrode on the other side of the flow battery according to the positive and negative electrode pressure difference so as to adjust the electrolyte flow of the electrode on the other side. By adopting the method, the coulombic efficiency of the flow battery can be ensured, and meanwhile, the positive and negative electrode pressure difference of the flow battery is at a safety threshold.

Description

Technical Field

[0001] This application relates to the field of automation technology, and in particular, to a control method, device, computer device, storage medium, and computer program product for a flow battery. Background Art

[0002] With the development of flow battery technology, there has gradually emerged a solution to regulate the Coulomb efficiency by controlling the electrolytes at the positive and negative electrodes of the battery, thereby affecting the charge and discharge efficiency. Currently, the technology usually adopts a pressure regulation mode to perform PID automatic control on the inlet pressures of the positive and negative electrodes of the flow battery to ensure that the pressure difference across the membrane remains within a certain range.

[0003] However, as the flow battery operates continuously during charge and discharge cycles, chemical reactions occur on the surface of the electrode plates, resulting in a gradual increase in the flow resistance of the current flow channels. This increase in flow resistance means that the pressure that originally required a higher flow rate to maintain can now be achieved with a reduced flow rate. As a result, the PID control system may automatically reduce the flow rate, thereby affecting the charge and discharge efficiency of the battery. Summary of the Invention

[0004] Based on this, it is necessary to provide a control method, device, computer device, computer-readable storage medium, and computer program product for a flow battery to address the above technical problems.

[0005] In a first aspect, this application provides a control method for a flow battery. Applied to the controller of the flow battery; the method includes:

[0006] Obtain the electrolyte flow rate of the target electrode of the flow battery;

[0007] When the electrolyte flow rate is less than a first preset threshold, increase the rotation speed of the power component corresponding to the target electrode to increase the electrolyte flow rate of the target electrode;

[0008] Obtain the pressure difference between the positive and negative electrodes of the flow battery;

[0009] According to the pressure difference between the positive and negative electrodes, adjust the rotation speed of the power component corresponding to the other electrode of the flow battery to adjust the electrolyte flow rate of the other electrode.

[0010] In one embodiment, the obtaining the pressure difference between the positive and negative electrodes of the flow battery includes:

[0011] Obtain the pressures of the positive and negative electrodes of the flow battery;

[0012] When the pressure of the positive electrode or the negative electrode is greater than a second preset threshold, stop the rotation of the power components corresponding to the positive and negative electrodes of the flow battery and generate a first warning message; wherein, the first warning message includes the pressures of the positive and negative electrodes of the flow battery.

[0013] When the positive and negative electrode pressures are both less than a second preset threshold, the positive and negative electrode pressure difference of the flow battery is obtained according to the positive and negative electrode pressures.

[0014] In one embodiment, the increasing the rotational speed of the power component corresponding to the target electrode includes:

[0015] Increasing and obtaining the rotational speed of the power component corresponding to the target electrode;

[0016] When the rotational speed of the power component reaches a third preset threshold and the electrolyte flow rate is less than a first preset threshold, the rotational speed of the power component is adjusted to the third preset threshold.

[0017] In one embodiment, after adjusting the rotational speed of the power component to the third preset threshold, it further includes:

[0018] Judging whether the electrolyte flow rate of the target electrode of the flow battery is less than a fourth preset threshold;

[0019] When the electrode liquid flow rate of the target electrode is less than the fourth preset threshold, a second warning message is generated; wherein, the second warning message includes the electrolyte flow rates of the positive and negative electrodes of the flow battery and the rotational speed of the power component.

[0020] In one embodiment, the adjusting the rotational speed of the power component corresponding to the other electrode of the flow battery includes:

[0021] Determining the rotational acceleration of the power component corresponding to the other electrode of the flow battery according to the positive and negative electrode pressure difference;

[0022] Adjusting the rotational speed of the power component corresponding to the other electrode of the flow battery according to the rotational acceleration.

[0023] In one embodiment, the power component includes a circulation pump; adjusting the rotational speed of the power component includes:

[0024] Using a frequency converter to adjust the power supply frequency and voltage of the circulation pump to adjust the rotational speed of the circulation pump.

[0025] In a second aspect, the present application also provides a control device for a flow battery. Applied to the controller of the flow battery; the device includes:

[0026] A flow rate acquisition module, configured to acquire the electrolyte flow rate of the target electrode of the flow battery;

[0027] A rotational speed adjustment module, configured to increase the rotational speed of the power component corresponding to the target electrode when the electrolyte flow rate is less than a first preset threshold, so as to increase the electrolyte flow rate of the target electrode;

[0028] A differential pressure acquisition module, configured to acquire the positive and negative electrode differential pressure of the flow battery;

[0029] The rotation speed adjustment module is further configured to adjust the rotation speed of the power component corresponding to the other electrode of the flow battery according to the positive and negative electrode differential pressure, so as to adjust the electrolyte flow rate of the other electrode.

[0030] In one embodiment, the differential pressure acquisition module includes:

[0031] A pressure acquisition sub-module, configured to acquire the positive and negative electrode pressures of the flow battery;

[0032] A pressure judgment sub-module, configured to stop the rotation of the power components corresponding to the positive and negative electrodes of the flow battery and generate a first warning message when the positive or negative electrode pressure is greater than a second preset threshold; wherein, the first warning message includes the positive and negative electrode pressures of the flow battery;

[0033] The pressure judgment sub-module is further configured to obtain the positive and negative electrode differential pressure of the flow battery according to the positive and negative electrode pressures when the positive and negative electrode pressures are both less than the second preset threshold.

[0034] In one embodiment, the rotation speed adjustment module includes:

[0035] A rotation speed acquisition sub-module, configured to increase and acquire the rotation speed of the power component corresponding to the target electrode;

[0036] A rotation speed adjustment sub-module, configured to adjust the rotation speed of the power component to a third preset threshold when the rotation speed of the power component reaches the third preset threshold and the electrolyte flow rate is less than the first preset threshold.

[0037] In one embodiment, the device further includes:

[0038] A flow rate judgment module, configured to judge whether the electrolyte flow rate of the target electrode of the flow battery is less than a fourth preset threshold;

[0039] The flow rate judgment module is further configured to generate a second warning message when the electrode liquid flow rate of the target electrode is less than the fourth preset threshold; wherein, the second warning message includes the electrolyte flow rates of the positive and negative electrodes of the flow battery and the rotation speed of the power component.

[0040] In one embodiment, the flow rate adjustment module includes:

[0041] An acceleration acquisition sub-module, configured to determine the rotational acceleration of the power component corresponding to the other electrode of the flow battery according to the positive and negative electrode differential pressure;

[0042] A rotational speed adjustment sub-module, configured to adjust the rotational speed of a power component corresponding to an electrode on the other side of the flow battery according to the rotational acceleration.

[0043] In one embodiment, the power component includes a circulation pump; the device further includes:

[0044] A circulation pump adjustment module, configured to use a frequency converter to adjust the power supply frequency and voltage of the circulation pump, so as to adjust the rotational speed of the circulation pump.

[0045] In a third aspect, the present application further provides a computer device. The computer device includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, it implements the control method of the flow battery as described in any one of the embodiments of the present disclosure.

[0046] In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, and when the computer program is executed by a processor, it implements the control method of the flow battery as described in any one of the embodiments of the present disclosure.

[0047] In a fifth aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, it implements the control method of the flow battery as described in any one of the embodiments of the present disclosure.

[0048] For the above control method, device, computer device, storage medium and computer program product of the flow battery, the electrolyte flow rate of the target electrode of the flow battery is obtained. When the electrolyte flow rate is less than a preset threshold, the rotational speed of the power component of the target electrode is increased, so as to increase the electrode liquid flow rate of the target electrode. By obtaining the positive and negative electrode pressure difference of the flow battery and adjusting the electrolyte flow rate of the electrode on the other side according to the positive and negative electrode pressure difference. Through the electrolyte flow rate of the target electrode, the rotational speed of the power component of the target electrode is controlled, so as to ensure the electrolyte flow rate of the target electrode and further ensure the Coulomb efficiency of the flow battery. At the same time, by controlling the positive and negative electrode pressure difference of the flow battery, the electrolyte flow rate of the electrode on the other side of the flow battery is controlled, ensuring that the positive and negative electrode pressure difference of the flow battery is always within a preset range, thereby improving the stability of the flow battery. In the above way, the system stability is considered while ensuring the charge and discharge cycle performance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic flow chart of the control method of the flow battery in one embodiment;

[0050] Figure 2 It is a schematic diagram of the flow battery in one embodiment;

[0051] Figure 3Schematic flowchart for determining whether the positive and negative electrode pressures are within a preset threshold in an embodiment;

[0052] Figure 4 Schematic flowchart for determining whether the rotational speed is within a preset threshold in an embodiment;

[0053] Figure 5 Schematic flowchart for determining whether the flow rate is within a preset threshold in an embodiment;

[0054] Figure 6 Schematic flowchart for adjusting the rotational speed of the power assembly according to the positive and negative electrode pressure difference in an embodiment;

[0055] Figure 7 Structural block diagram of a control device for a flow battery in an embodiment;

[0056] Figure 8 Internal structure diagram of a computer device in an embodiment. Detailed implementation manners

[0057] To make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application 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 application and are not used to limit the present application.

[0058] In one embodiment, as Figure 1 shown, a control method for a flow battery is provided. In this embodiment, it is exemplified that the method is applied to the controller of the flow battery. It can be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and is implemented through the interaction between the terminal and the server. In this embodiment, the method includes the following steps:

[0059] Step S100: Obtain the electrolyte flow rate of the target electrode of the flow battery.

[0060] In an exemplary embodiment, the electrolyte flow rate can be obtained by installing a flow sensor on the pipeline of the flow battery and using the flow sensor to obtain the electrolyte flow rate of the target electrode, etc.

[0061] In an exemplary embodiment, the target electrode may include the positive electrode or the negative electrode of the flow battery, etc.

[0062] In an exemplary embodiment, the flow battery may include a zinc-iron flow battery, a vanadium redox flow battery, a lead-acid flow battery, a lithium flow battery, etc.

[0063] Step S200: When the electrolyte flow rate is less than a first preset threshold, increase the rotational speed of the power assembly corresponding to the target electrode to increase the electrolyte flow rate of the target electrode.

[0064] In an exemplary embodiment, the electrolyte flow rate of the target electrode can be obtained in real time. If the electrolyte flow rate is greater than the first preset threshold, the detection continues. If the electrolyte flow rate is less than the first preset threshold, the rotation speed of the power component of the target motor is increased to increase the electrolyte flow rate of the target electrode. The power component may include a circulation pump, and by increasing the rotation speed of the circulation pump, the electrolyte flow rate of the target electrode is increased, etc.

[0065] Step S300: Obtain the positive and negative electrode pressure difference of the flow battery.

[0066] In an exemplary embodiment, pressure sensors can be installed on the positive electrode and the negative electrode of the flow battery respectively, and the positive and negative electrode pressure difference of the flow battery can be obtained by using the pressures of the positive electrode and the negative electrode collected, etc.

[0067] In an exemplary embodiment, after increasing the rotation speed of the power component corresponding to the target electrode, the positive and negative electrode pressure difference can be obtained; or the positive and negative electrode pressure difference can be obtained in real time, etc.

[0068] Step S400: According to the positive and negative electrode pressure difference, adjust the rotation speed of the power component corresponding to the other electrode of the flow battery to adjust the electrolyte flow rate of the other electrode.

[0069] In an exemplary embodiment, when the positive and negative electrode pressure difference is not within the preset range, the rotation speed of the power component of the other electrode is adjusted, and then the electrolyte flow rate of the other electrode is adjusted, so as to control the pressure of the other electrode and make the positive and negative electrode pressure difference controlled within the preset range. The other electrode may include a non-target electrode of the flow battery, etc.

[0070] In an exemplary embodiment, the controller of the flow battery may include a flow rate controller and a pressure difference controller, etc.; the flow rate controller can be used to determine the electrolyte flow rate of the target electrode and control the electrolyte flow rate of the target electrode within the preset range in real time, so as to ensure the Coulomb efficiency of the flow battery. The pressure difference controller can ensure that the positive and negative electrode pressure difference is within the preset range by controlling the electrolyte flow rate of the other electrode (non-target electrode); specifically, the positive and negative electrode pressure difference can be obtained in real time, and when the positive and negative electrode pressure difference is not within the preset range, the electrolyte flow rate of the other electrode is adjusted, etc.

[0071] In an exemplary embodiment, constant-flow PID automatic control and differential-pressure PID automatic control can be set; during the circulation of the flow battery, the constant-flow PID automatic control system can ensure a constant flow rate on the positive electrode side. When the flow rate decreases, the rotation speed of the positive electrode pump is controlled to increase, thereby increasing the flow rate. At the same time that the rotation speed of the positive electrode pump increases, the positive electrode pressure also increases. Meanwhile, the differential-pressure PID control system ensures that the differential pressure between the positive and negative electrodes is within the set range, and the rotation speed of the negative electrode pump also increases, the flow rate increases, and the pressure increases, thereby achieving both ensuring the charge-discharge cycle performance of the system and taking into account the differential pressure control levels on both sides of the membrane and between the positive and negative electrodes, improving the stability of the system, etc.

[0072] In an exemplary embodiment, the flow battery may be as Figure 2 shown, including positive electrode electrolyte, negative electrode electrolyte, power components, ion membranes, etc. The positive and negative electrode electrolytes flow through the power components to the electrode plates and flow to both sides of the ion membrane respectively. The mover assembly may include a circulation pump, etc.

[0073] In an exemplary embodiment, when increasing the rotation speed of the circulation pump to increase the electrolyte flow rate of the electrode, the temperature can be increased to reduce the viscosity of the electrode electrolyte, thereby reducing the flow resistance and further increasing the electrolyte flow rate, etc.

[0074] In the control method of the above flow battery, the electrolyte flow rate of the target electrode of the flow battery is obtained. When the electrolyte flow rate is less than the preset threshold, the rotation speed of the power component of the target electrode is increased, thereby increasing the electrolyte flow rate of the target electrode. By obtaining the differential pressure between the positive and negative electrodes of the flow battery and according to the differential pressure between the positive and negative electrodes, the electrolyte flow rate of the other electrode is adjusted. Through the electrolyte flow rate of the target electrode, the rotation speed of the power component of the target electrode is controlled, thereby ensuring the electrolyte flow rate of the target electrode and further ensuring the Coulomb efficiency of the flow battery. At the same time, by controlling the differential pressure between the positive and negative electrodes of the flow battery, the electrolyte flow rate of the other electrode of the flow battery is controlled, ensuring that the differential pressure between the positive and negative electrodes of the flow battery is always within the preset range, thereby improving the stability of the flow battery. Through the above method, both the charge-discharge cycle performance of the system and the system stability are taken into account.

[0075] In one embodiment, as Figure 3 shown, the obtaining of the differential pressure between the positive and negative electrodes of the flow battery includes:

[0076] Step S301, obtaining the positive and negative electrode pressures of the flow battery.

[0077] Step S302, when the positive or negative electrode pressure is greater than the second preset threshold, stop the rotation of the power components corresponding to the positive and negative electrodes of the flow battery and generate a first warning message; wherein, the first warning message includes the positive and negative electrode pressures of the flow battery.

[0078] Step S303, when the pressures of both the positive and negative electrodes are less than a second preset threshold, obtain the pressure difference between the positive and negative electrodes of the flow battery according to the pressures of the positive and negative electrodes.

[0079] In an exemplary embodiment, when the pressure of the positive or negative electrode of the flow battery is greater than the second preset threshold, it may indicate that the pressure of the flow battery has reached the limit, and further increasing the pressure may cause equipment damage, etc.

[0080] In an exemplary embodiment, the first warning information may include the background sending a warning message to the target user terminal, etc. Among them, the first warning information may include the pressures of the positive and negative electrodes to facilitate quickly adjusting the pressures of the positive and negative electrodes of the flow battery, etc. In another exemplary embodiment, the warning information may include giving an alarm to prompt the staff that the pressure difference between the positive and negative electrodes of the flow battery is too large and the operation has been suspended, etc.

[0081] In this embodiment, when the pressure is greater than the second preset threshold, automatically stop the rotation of the power component and generate the first warning information. When the pressures are both less than the second preset threshold, obtain the pressure difference between the positive and negative electrodes of the flow battery. By automatically stopping the operation of the power component when the pressure exceeds the second preset threshold, possible equipment damage and safety hazards are avoided. At the same time, the generated first warning information can provide the current pressures of the positive and negative electrodes in real time to help the maintenance personnel make a quick response. This mechanism not only improves the safety and reliability of the battery, but also can effectively extend the service life of the equipment and reduce the maintenance cost.

[0082] In one embodiment, as Figure 4 shown, increasing the rotation speed of the power component corresponding to the target electrode includes:

[0083] Step S201, increase and obtain the rotation speed of the power component corresponding to the target electrode.

[0084] Step S202, when the rotation speed of the power component reaches a third preset threshold and the electrolyte flow rate is less than a first preset threshold, adjust the rotation speed of the power component to the third preset threshold.

[0085] In an exemplary embodiment, when the rotation speed reaches the third preset threshold and the electrolyte flow rate is still less than the first preset threshold, the flow battery will not continue to increase the rotation speed of the power component to avoid damage to the power component caused by too high a rotation speed, etc. Therefore, the rotation speed is controlled at the third preset threshold, etc. In an exemplary embodiment, when the rotation speed of the power component is at the third preset threshold, a warning message may be generated to warn the staff that the rotation speed of the power component of the flow battery has reached the maximum value and the charge-discharge efficiency may be less than the preset threshold, etc.

[0086] In this embodiment, the rotation speed of the power component is controlled to a third preset threshold. This not only prevents damage to the power component caused by a continuous increase in its rotation speed but also ensures that the flow battery maintains the optimal electrochemical reaction efficiency. That is, it ensures the maximum flow rate of the positive and negative electrodes, guaranteeing not only the safety of the flow battery but also maximizing the charge and discharge efficiency of the flow battery.

[0087] In one embodiment, as Figure 5 shown, after adjusting the rotation speed of the power component to the third preset threshold, the following steps are further included:

[0088] Step S211: Determine whether the electrolyte flow rate of the target electrode of the flow battery is less than a fourth preset threshold.

[0089] Step S212: When the electrolyte flow rate of the target electrode is less than the fourth preset threshold, generate a second warning message; wherein, the second warning message includes the electrolyte flow rates of the positive and negative electrodes of the flow battery and the rotation speed of the power component.

[0090] In an exemplary embodiment, after the rotation speed of the power component is adjusted to the third preset threshold, i.e., the maximum rotation speed, the electrolyte flow rate can be obtained, and it is determined whether the electrolyte flow rate reaches the preset range. If the electrolyte flow rate is not within the preset range, it will affect the charge and discharge efficiency of the flow battery. Therefore, a second warning message is generated to remind the staff that the charge and discharge efficiency of the flow battery will decrease, and the electrolyte flow rate and the rotation speed of the power component are sent to indicate that the rotation speed of the power component has reached the maximum value and the electrolyte flow rate is still not within the preset range, etc.

[0091] In this embodiment, by continuously monitoring the electrolyte flow rate of the target electrode of the flow battery and generating a second warning message when the flow rate is lower than the fourth preset threshold, timely warning of potential system problems can be achieved. This mechanism helps ensure that the system operates in a safe and efficient state, preventing changes in electrolyte concentration or insufficient electrochemical reactions caused by insufficient flow rate. The warning message provided includes the electrolyte flow rates of the positive and negative electrodes and the rotation speed of the power component, facilitating maintenance personnel to quickly locate problems and take corresponding measures, thereby improving the safety, reliability, and overall operating efficiency of the battery.

[0092] In one embodiment, as Figure 6 shown, adjusting the rotation speed of the power component corresponding to the other electrode of the flow battery includes:

[0093] Step S401: Determine the rotational acceleration of the power component corresponding to the other electrode of the flow battery according to the positive and negative electrode pressure difference.

[0094] Step S402: Adjust the rotation speed of the power component corresponding to the other electrode of the flow battery according to the rotational acceleration.

[0095] In an exemplary embodiment, the positive-negative pressure difference can be obtained in real time, and the rotational speed of the power assembly of the other electrode can be controlled in real time; wherein, the control of the rotational speed can include using the positive-negative pressure difference to determine the speed of rotational change, that is, the rotational acceleration. When the positive-negative pressure difference is too large, the rate of rotational change is increased. When the positive-negative pressure difference is small, the rate of rotational change can be appropriately reduced, etc.

[0096] In this embodiment, the rotational acceleration of the power assembly of the other electrode is determined through the positive-negative pressure difference, and the rotational speed of the flow battery is adjusted using the rotational acceleration. Determining the rotational acceleration of the power assembly through the positive-negative pressure difference enables dynamic optimization and adjustment. It ensures that the rotational speed of the power assembly can quickly adapt to the continuously changing pressure conditions inside the battery, improving the overall reaction efficiency and the consistency of energy output. By promptly responding to the flow state of the electrolyte, the reliability and stability of the device are increased, thereby extending the service life of the flow battery and reducing maintenance requirements.

[0097] In one embodiment, the power assembly includes a circulation pump; adjusting the rotational speed of the power assembly includes:

[0098] Using a frequency converter to adjust the power supply frequency and voltage of the circulation pump to adjust the rotational speed of the circulation pump.

[0099] In this embodiment, the rotational speed of the circulation pump is controlled using a frequency converter. This not only improves the flexibility and response ability of the system but also can accurately adjust the flow rate of the electrolyte, thereby optimizing the circulation efficiency of the flow battery. When combined with dynamic monitoring of the electrolyte flow rate and pressure difference, frequency conversion control can adapt to different working conditions in real time to ensure the best potential distribution and electrochemical reaction rate. In addition, adjusting the power supply frequency and voltage of the pump can significantly reduce energy consumption and equipment wear, improve the overall energy efficiency, and extend the service life of the equipment.

[0100] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are sequentially shown according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time but can be executed at different times. The execution order of these steps or stages is not necessarily sequential either, but can be executed alternately or in turn with at least a part of other steps or steps or stages in other steps.

[0101] Based on the same inventive concept, an embodiment of the present application further provides a control device for a flow battery for implementing the control method of the flow battery involved above. The solution provided by this device to solve the problem is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the flow battery control device provided below can refer to the limitations on the control method of the flow battery in the above text, and will not be repeated here.

[0102] In one embodiment, as Figure 7 shown, a control device 600 for a flow battery is provided, which is applied to a controller of the flow battery; it includes: a flow rate acquisition module 601, a rotation speed adjustment module 602, and a pressure difference acquisition module 603, where:

[0103] The flow rate acquisition module is used to acquire the electrolyte flow rate of the target electrode of the flow battery;

[0104] The rotation speed adjustment module is used to increase the rotation speed of the power component corresponding to the target electrode when the electrolyte flow rate is less than a first preset threshold, so as to increase the electrolyte flow rate of the target electrode;

[0105] The pressure difference acquisition module is used to acquire the positive and negative electrode pressure difference of the flow battery;

[0106] The rotation speed adjustment module is further used to adjust the rotation speed of the power component corresponding to the other electrode of the flow battery according to the positive and negative electrode pressure difference, so as to adjust the electrolyte flow rate of the other electrode.

[0107] In one of the embodiments, the pressure difference acquisition module includes:

[0108] A pressure acquisition sub-module is used to acquire the positive and negative electrode pressures of the flow battery;

[0109] A pressure judgment sub-module is used to stop the rotation of the power components corresponding to the positive and negative electrodes of the flow battery and generate a first warning message when the positive or negative electrode pressure is greater than a second preset threshold; wherein, the first warning message includes the positive and negative electrode pressures of the flow battery;

[0110] The pressure judgment sub-module is further used to obtain the positive and negative electrode pressure difference of the flow battery according to the positive and negative electrode pressures when the positive and negative electrode pressures are both less than the second preset threshold.

[0111] In one of the embodiments, the rotation speed adjustment module includes:

[0112] A rotation speed acquisition sub-module is used to increase and acquire the rotation speed of the power component corresponding to the target electrode;

[0113] A rotational speed adjustment sub-module, configured to adjust the rotational speed of the power component to a third preset threshold when the rotational speed of the power component reaches a third preset threshold and the electrolyte flow rate is less than a first preset threshold.

[0114] In one embodiment, the device further includes:

[0115] A flow rate judgment module, configured to judge whether the electrolyte flow rate of the target electrode of the flow battery is less than a fourth preset threshold;

[0116] The flow rate judgment module is further configured to generate a second warning message when the electrode liquid flow rate of the target electrode is less than the fourth preset threshold; wherein, the second warning message includes the electrolyte flow rates of the positive and negative electrodes of the flow battery and the rotational speed of the power component.

[0117] In one embodiment, the flow rate adjustment module includes:

[0118] An acceleration acquisition sub-module, configured to determine the rotational acceleration of the power component corresponding to the other electrode of the flow battery according to the positive and negative electrode pressure difference;

[0119] A rotational speed adjustment sub-module, configured to adjust the rotational speed of the power component corresponding to the other electrode of the flow battery according to the rotational acceleration.

[0120] In one embodiment, the power component includes a circulation pump; the device further includes:

[0121] A circulation pump adjustment module, configured to use a frequency converter to adjust the power supply frequency and voltage of the circulation pump so as to adjust the rotational speed of the circulation pump.

[0122] Each module in the above control device of the flow battery can be implemented in whole or in part by software, hardware, and their combination. The above modules can be embedded in the processor of the computer device in hardware form or be independent of it, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to the above modules.

[0123] In one embodiment, a computer device is provided. The computer device can be a server, and its internal structure diagram can be as Figure 8As shown in the figure. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O), and a communication interface. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store flow rate and positive and negative pressure difference data. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, it realizes a method for a differential pressure acquisition module.

[0124] Those skilled in the art can understand that Figure 8 the structure shown in the figure is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the computer device to which the solution of this application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have a different component layout.

[0125] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in this application are all information and data that have been authorized by the user or fully authorized by all parties, and the collection, use, and processing of relevant data need to comply with the relevant laws, regulations, and standards of relevant countries and regions.

[0126] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in the present application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in the present application can be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.

[0127] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0128] The above-described embodiments merely represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A control method for a flow battery, characterized in that: A controller applied to a flow battery; the method comprising: Obtaining the electrolyte flow rate of the target electrode of the flow battery; When the electrolyte flow rate is less than a first preset threshold, increasing the rotation speed of the power assembly corresponding to the target electrode to increase the electrolyte flow rate of the target electrode; Obtaining a positive and negative electrode pressure difference of the liquid flow battery; According to the positive and negative electrode pressure difference, the rotation speed of the power component corresponding to the electrode on the other side of the liquid flow battery is adjusted to adjust the electrolyte flow rate of the electrode on the other side.

2. The method according to claim 1, characterized in that The obtaining of the positive and negative electrode pressure difference of the liquid flow battery comprises: Obtaining the positive and negative electrode pressures of the liquid flow battery; When the positive or negative electrode pressure is greater than a second preset threshold, the rotation of the power assembly corresponding to the positive and negative electrodes of the flow battery is stopped, and a first warning message is generated; wherein the first warning message includes the positive and negative electrode pressures of the flow battery; When both the positive and negative electrode pressures are less than a second preset threshold, the positive and negative electrode pressure difference of the liquid flow battery is obtained according to the positive and negative electrode pressures.

3. The method according to claim 1, characterized in that Increasing the rotation speed of the power assembly corresponding to the target electrode includes: Increase and obtain the rotation speed of the power assembly corresponding to the target electrode; When the rotation speed of the power component reaches a third preset threshold and the electrolyte flow rate is less than the first preset threshold, the rotation speed of the power component is adjusted to the third preset threshold.

4. The method according to claim 3, characterized in that After the rotation speed of the power assembly is adjusted to the third preset threshold, the method further includes: Determining whether the electrolyte flow rate of the target electrode of the flow battery is less than a fourth preset threshold; When the electrode liquid flow rate of the target electrode is less than the fourth preset threshold, a second warning message is generated; wherein the second warning message includes the electrolyte flow rate of the positive and negative electrodes of the liquid flow battery and the rotational speed of the power component.

5. The method according to claim 1, characterized in that The adjusting the rotation speed of the power assembly corresponding to the electrode on the other side of the flow battery comprises: Determining the rotational acceleration of the power assembly corresponding to the electrode on the other side of the flow battery according to the positive and negative electrode pressure difference; According to the rotational acceleration, the rotational speed of the power assembly corresponding to the electrode on the other side of the flow battery is adjusted.

6. The method according to any one of claims 1 to 5, characterized in that: The power assembly includes a circulation pump; adjusting the speed of the power assembly includes: Use the frequency converter to adjust the power supply frequency and voltage of the circulation pump to adjust the speed of the circulation pump.

7. A control device for a flow battery, characterized in that: A controller for a liquid flow battery; the device comprises: A flow acquisition module, used to acquire the electrolyte flow of a target electrode of a flow battery; A rotation speed adjustment module, used to increase the rotation speed of the power assembly corresponding to the target electrode to increase the electrolyte flow rate of the target electrode when the electrolyte flow rate is less than a first preset threshold value; A pressure difference acquisition module, used to obtain the pressure difference between the positive and negative electrodes of the liquid flow battery; The rotation speed adjustment module is also used to adjust the rotation speed of the power component corresponding to the electrode on the other side of the liquid flow battery according to the positive and negative electrode pressure difference, so as to adjust the electrolyte flow rate of the electrode on the other side.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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