A method and system for cooling an energy storage cabinet, an intelligent terminal, and a storage medium

Abstract

The present application relates to a cooling method, system, intelligent terminal and storage medium for an energy storage cabinet, and relates to the technical field of power equipment, including obtaining the real-time detected temperature value of a preset battery pack; judging whether the real-time detected temperature value meets the requirements of a preset operating temperature range; if it meets the requirements, continue to obtain the real-time detected temperature value of the battery pack for cyclic judgment; if it does not meet the requirements, analyze the real-time detected temperature value and the operating temperature range to determine the abnormal temperature value; obtain the serial number of the cooling device corresponding to the abnormal temperature value; control the preset cooling device to cool the corresponding battery pack according to the abnormal temperature value and the serial number of the cooling device. The present application has the effect of improving the convenience of cooling the energy storage cabinet.

Description

Technical Field

[0001] The present application relates to the technical field of power equipment, and in particular, to a cooling method, system, intelligent terminal and storage medium for an energy storage cabinet. Background Art

[0002] An energy storage cabinet, also known as an energy storage system or an energy storage unit, is a device used to store energy and release it when needed. It usually includes a battery pack, a power conversion system, a management system and other safety and monitoring components. Its main functions are to balance power supply and demand, improve energy utilization efficiency, and serve as a backup power source.

[0003] In related technologies, a liquid cooling device is usually installed in the energy storage cabinet to cool the battery pack in the energy storage cabinet. The liquid cooling device includes a cold plate, a circulation pump, a radiator and a control system. The cold plate is placed under the battery pack, and internal channels for the coolant to pass through are provided on the cold plate. The circulation pump is connected to the internal channels and the radiator through pipelines, and the control system is connected to the circulation pump and the radiator through data wires. When the control system receives a cooling signal, it controls the circulation pump to drive the coolant to flow in the internal channels to take away the heat generated by the battery pack, and after cooling the coolant through the radiator, it circulates again, so as to continuously cool the battery pack.

[0004] In view of the above related technologies, during the operation of the battery pack, there are differences in the temperatures of different battery packs. Placing the battery packs on the cold plate and making the circulation pump drive the coolant to flow in the internal channels of the cold plate to cool the battery packs uniformly cannot effectively cool the battery packs with higher temperatures, and for the battery packs with lower temperatures, it will increase energy consumption, resulting in inconvenient cooling of the energy storage cabinet and there is still room for improvement. Summary of the Invention

[0005] In order to improve the convenience of cooling the energy storage cabinet, the present application provides a cooling method, system, intelligent terminal and storage medium for an energy storage cabinet.

[0006] In a first aspect, the present application provides a cooling method for an energy storage cabinet, adopting the following technical solution:

[0007] A cooling method for an energy storage cabinet includes:

[0008] Obtaining the real-time detected temperature value of a preset battery pack;

[0009] Judging whether the real-time detected temperature value meets the requirements of a preset operating temperature range;

[0010] If it meets, continue to obtain the real-time detected temperature value of the battery pack for cyclic judgment;

[0011] If it does not meet, analyze the real-time detected temperature value and the operating temperature range to determine an abnormal temperature value;

[0012] Obtain the serial number of the cooling device corresponding to the abnormal temperature value;

[0013] Control the preset cooling device to cool the corresponding battery pack according to the abnormal temperature value and the serial number of the cooling device.

[0014] By adopting the above technical solution, when it is determined that the real-time detected temperature value does not meet the requirements of the operating temperature range, first determine the abnormal temperature value, and then identify the serial number of the cooling device corresponding to the abnormal temperature value, so as to control the cooling device corresponding to the serial number of the cooling device to cool the corresponding battery pack according to the abnormal temperature value, so as to cool the battery pack with the flow rate suitable for the battery pack, which will neither cause poor cooling effect nor excessive cooling energy consumption, and further improve the convenience of cooling the energy storage cabinet.

[0015] Optionally, the step of controlling the preset cooling device to cool the corresponding battery pack according to the abnormal temperature value and the serial number of the cooling device includes:

[0016] Determine the cooling flow rate value according to the abnormal temperature value and the preset temperature-cooling flow rate relationship;

[0017] Judge whether the cooling flow rate value meets the requirements of the preset cooling upper limit flow rate value;

[0018] If not, control the cooling device to cool the corresponding battery pack according to the preset cooling method;

[0019] If it meets the requirements, control the corresponding cooling device to cool the corresponding battery pack according to the serial number of the cooling device and the cooling flow rate value.

[0020] By adopting the above technical solution, when it is determined that the coolant flow rate required by the battery pack exceeds the upper limit of the corresponding cooling device, control the cooling device to cool the battery pack according to the cooling method; when it does not exceed, control the cooling device corresponding to the serial number of the cooling device to cool the battery pack according to the cooling flow rate value, so as to ensure that the cooling device can reduce and stabilize the temperature of the battery pack within the normal range, and further improve the convenience of cooling the energy storage cabinet.

[0021] Optionally, the step of controlling the corresponding cooling device to cool the corresponding battery pack according to the serial number of the cooling device and the cooling flow rate value includes:

[0022] Control the corresponding cooling device to cool the corresponding battery pack at the cooling flow rate value according to the serial number of the cooling device;

[0023] Obtain the stable temperature value of the change of the battery pack;

[0024] Judge whether the stable temperature value of the change meets the requirements of the operating temperature range;

[0025] If it meets the requirements, continue to control the corresponding cooling device according to the cooling device serial number to cool the corresponding battery pack at the cooling flow rate value, and continue to obtain the stable temperature value of the battery pack change for cyclic judgment;

[0026] If it does not meet the requirements, analyze the stable temperature value of the change and the operating temperature range to determine the temperature difference value;

[0027] Determine the adjusted flow rate value according to the temperature difference value and the preset temperature difference - flow rate relationship;

[0028] Adjust the cooling flow rate value according to the adjusted flow rate value, and control the corresponding cooling device according to the cooling device serial number to cool the corresponding battery pack at the adjusted cooling flow rate value.

[0029] By adopting the above - mentioned technical solution, after controlling the cooling device to cool the battery pack at the cooling flow rate value, the stable temperature value of the battery pack change is detected. When it is determined that the stable temperature value of the change does not meet the requirements of the operating temperature range, it indicates that the cooling device cannot effectively cool the battery pack at the current flow rate. Therefore, the adjusted flow rate value is determined according to the temperature difference value, and after adjusting the cooling flow rate value with the adjusted flow rate value, the cooling device is controlled to cool the battery pack again at the adjusted cooling flow rate value, ensuring that after the temperature of the battery pack itself changes, the cooling device reacts in time to change the flow rate, thereby improving the cooling effect of the cooling device.

[0030] Optionally, when the stable temperature value of the change does not meet the requirements of the operating temperature range, it further includes a leak detection step for the cooling device. The specific steps are as follows:

[0031] Control the corresponding cooling device according to the cooling device serial number to cool the corresponding battery pack at the preset leak detection flow rate value;

[0032] Obtain the real - time detected flow rate value of the cooling device;

[0033] Judge whether the real - time detected flow rate value meets the requirements of the leak detection flow rate value;

[0034] If it meets the requirements, control the cooling device to cool the corresponding battery pack according to the stable temperature value of the change;

[0035] If it does not meet the requirements, give an alarm prompt according to the cooling device serial number and the preset liquid leakage prompt information.

[0036] By adopting the above technical solution, when it is determined that the stable temperature value of the change does not meet the requirements of the operating temperature range, the cooling device is controlled to cool the battery pack at the leak detection flow rate value, and the real-time detected flow rate value of the cooling device is detected. When it is determined that the real-time detected flow rate value is inconsistent with the leak detection flow rate value, it indicates that there is coolant leakage, resulting in the cooling device being unable to effectively reduce the temperature of the battery pack. Therefore, a prompt is made according to the cooling device serial number and the leak liquid prompt information, so as to ensure that personnel can repair the damaged cooling device in time.

[0037] Optionally, the steps of controlling the cooling device to cool the corresponding battery pack according to the preset cooling method include:

[0038] Obtain the number of devices with excessive flow rate;

[0039] Judge whether the number of devices with excessive flow rate meets the requirements of the preset total number of devices;

[0040] If it meets the requirements, control the cooling device to cool the corresponding battery pack according to the preset shared cooling method;

[0041] If it does not meet the requirements, determine the calling device serial number according to the cooling device serial number and the preset calling serial number relationship;

[0042] Control the cooling device and the preset auxiliary device to cool the corresponding battery pack respectively according to the cooling device serial number and the calling device serial number.

[0043] By adopting the above technical solution, when the number of devices with excessive flow rate meets the requirements of the total number of devices, it indicates that the flow rates of all cooling devices cannot meet the cooling requirements. Therefore, control the cooling device to cool the battery pack according to the shared cooling method; when it does not meet the requirements, it indicates that only some cooling devices cannot meet the cooling requirements. Therefore, call the auxiliary device according to the calling device serial number to assist the cooling device to cool the battery pack, thereby improving the cooling effect of the cooling device.

[0044] Optionally, the steps of controlling the cooling device and the preset auxiliary device to cool the corresponding battery pack respectively according to the cooling device serial number and the calling device serial number include:

[0045] Control the cooling device to cool the corresponding battery pack at the cooling upper limit flow rate value according to the cooling device serial number;

[0046] Analyze the cooling flow rate value and the cooling upper limit flow rate value to determine the calling flow rate value;

[0047] Control the auxiliary device to move to the preset standard cooling position according to the calling device serial number, and control the auxiliary device to assist in cooling the corresponding battery pack at the calling flow rate value.

[0048] By adopting the above technical solution, the cooling device corresponding to the cooling device serial number is controlled to cool the battery pack at the cooling upper limit flow value, and the auxiliary device is controlled to assist in cooling the battery pack at the standard cooling position according to the called flow value, so that the flow value for cooling the battery pack meets the flow value for effective cooling, thereby improving the cooling effect on the battery pack.

[0049] Optionally, the steps of controlling the cooling device to cool the corresponding battery pack according to the preset shared cooling method include:

[0050] Controlling the cooling device to cool the corresponding battery pack at the cooling upper limit flow value according to the cooling device serial number;

[0051] Analyzing the cooling flow value and the cooling upper limit flow value to determine the flow excess value;

[0052] Analyzing the flow excess value, the corresponding cooling device serial number, and the preset call serial number relationship to determine the exclusive device serial number and the shared device serial number;

[0053] Controlling the preset auxiliary device to move to the preset standard cooling position according to the exclusive device serial number, and controlling the auxiliary device to assist in cooling the corresponding battery pack with the flow excess value;

[0054] Analyzing the shared device serial number and the corresponding flow excess value to determine the shared flow value and the serial number movement ratio;

[0055] Controlling the auxiliary device to move to the preset shared cooling position according to the shared device serial number and the serial number movement ratio, and controlling the auxiliary device to assist in cooling the corresponding battery pack with the shared flow value.

[0056] By adopting the above technical solution, the exclusive device serial number and the shared device serial number are determined according to the flow excess value, so that the corresponding auxiliary device is controlled to move to the standard cooling position according to the exclusive device serial number and assist in cooling the battery pack with the flow excess value, and the auxiliary device corresponding to the shared device serial number is controlled to move to the shared cooling position according to the serial number movement ratio and assist in cooling the battery pack with the shared flow value, thereby ensuring that all battery packs can be effectively cooled, and further improving the cooling effect of the cooling device.

[0057] In a second aspect, the present application provides an energy storage cabinet cooling system, adopting the following technical solution:

[0058] An energy storage cabinet cooling system, comprising:

[0059] An acquisition module for acquiring the real-time detected temperature value and the cooling device serial number;

[0060] A memory for storing the program of an energy storage cabinet cooling method as described in any one of the above;

[0061] A processor, and a program in the memory can be loaded and executed by the processor to implement a method for cooling an energy storage cabinet as described in any one of the above.

[0062] By adopting the above technical solution, the processor loads and executes a program of a method for cooling an energy storage cabinet stored in the memory, and controls the acquisition module to acquire a series of data related to the cooling of the energy storage cabinet. Thus, when it is determined that the real-time detected temperature value does not meet the requirements of the operating temperature range, the abnormal temperature value is first determined, and then the serial number of the cooling device corresponding to the abnormal temperature value is identified. Then, according to the abnormal temperature value, the cooling device corresponding to the serial number of the cooling device is controlled to cool the corresponding battery pack, and the battery pack is cooled with a flow rate suitable for the battery pack, which will neither cause poor cooling effect nor excessive cooling energy consumption, thereby improving the convenience of cooling the energy storage cabinet.

[0063] In a third aspect, the present application provides an intelligent terminal, adopting the following technical solution:

[0064] An intelligent terminal includes a memory and a processor, and a computer program capable of being loaded and executed by the processor to implement a method for cooling an energy storage cabinet as described in any one of the above is stored on the memory.

[0065] By adopting the above technical solution, by operating the intelligent terminal, the processor loads and executes a computer program of a method for cooling an energy storage cabinet stored in the memory. Thus, when it is determined that the real-time detected temperature value does not meet the requirements of the operating temperature range, the abnormal temperature value is first determined, and then the serial number of the cooling device corresponding to the abnormal temperature value is identified. Then, according to the abnormal temperature value, the cooling device corresponding to the serial number of the cooling device is controlled to cool the corresponding battery pack, and the battery pack is cooled with a flow rate suitable for the battery pack, which will neither cause poor cooling effect nor excessive cooling energy consumption, thereby improving the convenience of cooling the energy storage cabinet.

[0066] In a fourth aspect, the present application provides a computer storage medium, which can store a corresponding program and has the characteristic of being convenient to implement the improvement of the convenience of cooling the energy storage cabinet. The following technical solution is adopted:

[0067] A computer-readable storage medium stores a computer program capable of being loaded and executed by a processor to implement any one of the above methods for cooling an energy storage cabinet.

[0068] By adopting the above technical solution, a computer program for a cooling method of an energy storage cabinet is stored in a computer-readable storage medium, and a processor loads and executes the computer program stored in the storage medium. Thus, when it is determined that the real-time detected temperature value does not meet the requirements of the operating temperature range, the abnormal temperature value is first determined, and then the serial number of the cooling device corresponding to the abnormal temperature value is identified. Then, according to the abnormal temperature value, the cooling device corresponding to the serial number of the cooling device is controlled to cool the corresponding battery pack, so as to cool the battery pack with a flow rate suitable for the battery pack, which will neither cause poor cooling effect nor excessive cooling energy consumption, thereby improving the convenience of cooling the energy storage cabinet.

[0069] In summary, the present application includes at least one of the following beneficial technical effects:

[0070] When it is determined that the real-time detected temperature value does not meet the requirements of the operating temperature range, the abnormal temperature value is first determined, and then the serial number of the cooling device corresponding to the abnormal temperature value is identified. Then, according to the abnormal temperature value, the cooling device corresponding to the serial number of the cooling device is controlled to cool the corresponding battery pack, so as to cool the battery pack with a flow rate suitable for the battery pack, which will neither cause poor cooling effect nor excessive cooling energy consumption, thereby improving the convenience of cooling the energy storage cabinet;

[0071] When it is determined that the coolant flow rate required by the battery pack exceeds the upper limit of the corresponding cooling device, the cooling device is controlled to cool the battery pack according to the called cooling method; when it does not exceed, the cooling device corresponding to the serial number of the cooling device is controlled to cool the battery pack according to the cooling flow rate value, so as to ensure that the cooling device can reduce and stabilize the temperature of the battery pack within the normal range, thereby improving the convenience of cooling the energy storage cabinet;

[0072] When the flow rate exceeds the requirement that the number of devices conforms to the total number of devices, it indicates that the flow rates of all cooling devices cannot meet the cooling requirements. Therefore, the cooling device is controlled to cool the battery pack according to the shared cooling method; when it does not conform, it indicates that only some cooling devices cannot meet the cooling requirements. Therefore, the auxiliary device is called according to the called device serial number to assist the cooling device to cool the battery pack, thereby improving the cooling effect of the cooling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 is a flowchart of a cooling method for an energy storage cabinet in an embodiment of the present application.

[0074] Figure 2 is a flowchart of the steps of controlling a preset cooling device to cool a corresponding battery pack according to an abnormal temperature value and a serial number of a cooling device in an embodiment of the present application.

[0075] Figure 3 is a flowchart of the steps of controlling a corresponding cooling device to cool a corresponding battery pack according to a serial number of a cooling device and a cooling flow rate value in an embodiment of the present application.

[0076] Figure 4 This is a flowchart of the leak detection steps for the cooling device in the embodiments of the present application.

[0077] Figure 5 This is a flowchart of the steps for controlling the cooling device to cool the corresponding battery pack according to a preset cooling method in the embodiments of the present application.

[0078] Figure 6 This is a flowchart of the steps for respectively controlling the cooling device and a preset auxiliary device to cool the corresponding battery pack according to the cooling device number and the calling device number in the embodiments of the present application.

[0079] Figure 7 This is a flowchart of the steps for controlling the cooling device to cool the corresponding battery pack according to a preset shared cooling method in the embodiments of the present application. Detailed implementation manners

[0080] In order to make the purpose, technical solutions and advantages of the present application clearer and more understandable, the following will further describe the present application in detail with reference to the Figures 1 - 7 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.

[0081] The embodiments of the present application disclose an energy storage cabinet cooling method, specifically disclose a processing terminal, a battery pack state sensor and a cooling device. The processing terminal is respectively connected to the battery pack state sensor and the cooling device through data wires to realize data interaction and control. When the processing terminal receives the real-time detection temperature value detected by the battery pack state sensor, when the processing terminal determines that the real-time detection temperature value meets the requirements of the operating temperature range, the processing terminal controls the battery pack state sensor to continue to detect the real-time detection temperature value of the battery pack, so as to continuously monitor the temperature condition of the battery pack; when it does not meet the requirements, the processing terminal identifies the abnormal temperature value and identifies the cooling device number corresponding to the abnormal temperature value, and then controls the cooling device corresponding to the cooling device number to cool the battery pack according to the abnormal temperature value, so as to cool the battery pack with a flow rate suitable for the battery pack, which will neither cause poor cooling effect nor cause excessive cooling energy consumption, thereby improving the convenience of energy storage cabinet cooling.

[0082] Referring to Figure 1 , the embodiments of the present application disclose an energy storage cabinet cooling method, including the following steps:

[0083] Step S100: Obtain the real-time detection temperature value of a preset battery pack.

[0084] Among them, the battery pack refers to the battery used to store and release energy in the energy storage cabinet, and usually multiple battery packs are set in one energy storage cabinet. The real-time detected temperature value refers to the operating temperature value of the battery pack, which is obtained by the temperature sensor detecting the temperature of the battery pack and sending it to the processing terminal.

[0085] Step S101: Determine whether the real-time detected temperature value meets the requirements of the preset operating temperature range.

[0086] Among them, the operating temperature range refers to the temperature range in which the battery pack operates normally. The specific value is determined by the operator according to the actual situation of the battery pack. The requirement of the operating temperature range means being within the operating temperature range, which is input by the operator and stored in the processing terminal.

[0087] The processing terminal determines whether the real-time detected temperature value is within the operating temperature range, so as to determine whether the operating temperature of the battery pack is normal.

[0088] Step S1011: If it meets the requirements, continue to obtain the real-time detected temperature value of the battery pack for loop judgment.

[0089] Among them, if the processing terminal determines that the real-time detected temperature value is within the operating temperature range, it indicates that the operating temperature of the battery pack is normal. Therefore, there is no need for the cooling device to cool the battery pack, and thus continue to control the temperature sensor to detect the real-time detected temperature value of the battery pack to continuously monitor the temperature change of the battery pack.

[0090] Step S1012: If it does not meet the requirements, analyze the real-time detected temperature value and the operating temperature range to determine the abnormal temperature value.

[0091] Among them, if the processing terminal determines that the real-time detected temperature value is not within the operating temperature range, it indicates that the operating temperature of the battery pack is abnormal. Therefore, determine the abnormal temperature value according to the real-time detected temperature value and the operating temperature range, providing data support for the subsequent cooling of the battery pack.

[0092] The abnormal temperature value refers to the temperature value at which the battery pack exceeds the normal temperature, which is obtained by the processing terminal calculating the difference between the real-time detected temperature value and the maximum value of the operating temperature range.

[0093] Step S102: Obtain the serial number of the cooling device corresponding to the abnormal temperature value.

[0094] Among them, the serial number of the cooling device refers to the serial number of the device used to cool the battery pack with abnormal temperature. The processing terminal identifies the serial number of the battery pack after the abnormal temperature value, and thus calls the serial number of the cooling device corresponding to the abnormal temperature value according to the one-to-one correspondence between the serial number of the battery pack and the serial number of the cooling device.

[0095] Step S103: Control a preset cooling device to cool a corresponding battery pack according to the abnormal temperature value and the cooling device serial number.

[0096] After the processing terminal determines the cooling device serial number, the processing terminal controls the cooling device corresponding to the cooling device serial number to cool the battery pack according to the abnormal temperature value. For the specific method, refer to Figure 2 the steps in, so as to cool each battery pack separately with an appropriate flow rate, avoiding ineffective cooling on the one hand and reducing energy consumption on the other hand.

[0097] The cooling device refers to a device for cooling the battery pack. In this application, a liquid cooling method is adopted, including a cold plate, a circulation pump, a radiator and a valve. Fixed pipes are arranged inside the cold plate, and the fixed pipes correspond to each battery pack and are used to cool each battery pack; the opening and closing of each fixed pipe are controlled by a separate valve, so as to control the coolant flow rate in each pipe; the circulation pump is connected to each fixed pipe through a main pipe and a branch pipe, the other end of the circulation pump is connected to the radiator, and the other end of the radiator is connected to the fixed pipe, so as to realize the cycle of heat absorption and heat dissipation of the coolant. The coolant uses an ethylene glycol aqueous solution.

[0098] Refer to Figure 2 , the steps of controlling a preset cooling device to cool a corresponding battery pack according to the abnormal temperature value and the cooling device serial number include:

[0099] Step S200: Determine the cooling flow rate value according to the abnormal temperature value and the preset temperature-cooling flow rate relationship.

[0100] The temperature-cooling flow rate relationship refers to the proportional coefficient between the abnormal temperature and the cooling flow rate, and the proportional coefficient is determined by the operator according to the product of the heat transfer area and the heat transfer coefficient of the pipes in the cooling device.

[0101] The cooling flow rate value refers to the flow rate of the coolant in the cooling device and is obtained by the processing terminal calculating the product of the abnormal temperature value and the corresponding coefficient of the temperature-cooling flow rate relationship.

[0102] Step S201: Judge whether the cooling flow rate value meets the requirement of the preset cooling upper limit flow rate value.

[0103] The cooling upper limit flow rate value refers to the maximum flow rate of the fixed pipes in the cooling device, which is determined by the operator according to the actual situation of the fixed pipes. The requirement of the cooling upper limit flow rate value means not exceeding the cooling upper limit flow rate value.

[0104] The processing terminal judges whether the cooling flow rate value does not exceed the cooling upper limit flow rate value, so as to determine whether the fixed pipes can complete the cooling work of the battery pack.

[0105] Step S2011: If not, control the cooling device to cool the corresponding battery pack according to a preset cooling method.

[0106] If the processing terminal determines that the cooling flow rate value exceeds the cooling upper limit flow rate value, it indicates that the battery pack cannot be cooled down by relying solely on the fixed pipeline. Therefore, the cooling device is controlled to cool the battery pack according to the cooling method. The specific method is referred to Figure 5 steps.

[0107] The cooling method refers to the method of calling the mobile pipe in the cooling device to assist the fixed pipe to complete the cooling work. The operator stores it in the processing terminal. For specific methods, refer to Figure 5 steps.

[0108] Step S2012: If it is met, the corresponding cooling device is controlled to cool the corresponding battery pack according to the cooling device serial number and the cooling flow value.

[0109] If the processing terminal determines that the cooling flow rate value does not exceed the cooling upper limit flow rate value, it indicates that the battery pack can be cooled by the fixed pipeline. Therefore, the cooling device corresponding to the cooling device serial number is controlled according to the cooling flow rate value to cool the battery pack. For specific methods, refer to Figure 3 steps.

[0110] Reference Figure 3 The step of controlling the corresponding cooling device to cool the corresponding battery pack according to the cooling device sequence number and the cooling flow value includes:

[0111] Step S300: controlling the corresponding cooling device to cool the corresponding battery pack at a cooling flow value according to the cooling device sequence number.

[0112] Among them, the processing terminal controls the valve on the corresponding fixed pipeline in the cooling device to open at an opening corresponding to the cooling flow value according to the cooling device serial number, so that under the drive of the cooling device circulation pump, the coolant flows in the fixed pipeline to exchange heat with the battery pack to take away the heat generated by the battery pack, thereby cooling the battery pack.

[0113] Step S301: Obtain the changing stable temperature value of the battery pack.

[0114] The changing stable temperature value refers to a temperature value of the battery pack that is gradually stabilized under the cooling effect of the cooling device, and is obtained by the processing terminal recording the temperature curve of the battery pack and identifying the stable temperature value.

[0115] Step S302: Determine whether the changed stable temperature value meets the requirements of the operating temperature range.

[0116] Among them, the requirements for the operating temperature range in this step are the same as those in step S101, which will not be elaborated here.

[0117] The processing terminal determines whether the stable temperature value of the change is within the operating temperature range, so as to determine whether the cooling of the battery pack by the cooling device is effective.

[0118] Step S3021: If it meets the requirements, continue to control the corresponding cooling device according to the cooling device number to cool the corresponding battery pack with the cooling flow value, and continue to obtain the stable temperature value of the change of the battery pack for cyclic judgment.

[0119] Among them, if the processing terminal determines that the stable temperature value of the change is within the operating temperature range, it indicates that the cooling of the battery pack by the cooling device is effective. Therefore, continue to control the corresponding cooling device according to the cooling device number to cool the corresponding battery pack with the cooling flow value, and continue to detect the changing temperature value of the battery pack, so as to continuously monitor the temperature change of the battery pack.

[0120] Step S3022: If it does not meet the requirements, analyze the stable temperature value of the change and the operating temperature range to determine the temperature difference value.

[0121] Among them, if the processing terminal determines that the stable temperature value of the change is not within the operating temperature range, it indicates that the cooling of the battery pack by the cooling device has not achieved the expected effect. Therefore, determine the temperature difference value according to the stable temperature value of the change and the operating temperature range, providing data support for the cooling of the subsequent cooling device.

[0122] The temperature difference value refers to the difference between the stable temperature value of the change and the operating temperature range, which is determined by the processing terminal calculating the difference between the stable temperature value of the change and the maximum value in the operating temperature range.

[0123] Step S303: Determine the adjusted flow value according to the temperature difference value and the preset temperature difference - flow relationship.

[0124] Among them, the temperature difference - flow relationship in this step is actually the same as the temperature - cooling flow relationship in step S200, which will not be elaborated here.

[0125] The adjusted flow value refers to the flow value that the cooling device needs to increase, which is obtained by the processing terminal calculating the product of the temperature difference value and the corresponding coefficient of the temperature difference - flow relationship.

[0126] Step S304: Adjust the cooling flow value according to the adjusted flow value, and control the corresponding cooling device according to the cooling device number to cool the corresponding battery pack with the adjusted cooling flow value.

[0127] Among them, after the processing terminal determines the adjusted flow value, the adjusted flow value is added to the cooling flow value to adjust the cooling flow value, and the valve of the fixed pipeline in the cooling device corresponding to the cooling device number is controlled to open with the opening corresponding to the adjusted cooling flow value, so as to adjust the cooling effect on the battery pack.

[0128] Refer to Figure 4 , when the changed stable temperature value does not meet the requirements of the operating temperature range, it further includes a leak detection step for the cooling device. The specific steps are as follows:

[0129] Step S400: Control the corresponding cooling device according to the cooling device number to cool the corresponding battery pack with a preset leak detection flow value.

[0130] Among them, when it is determined that the changed stable temperature value exceeds the operating temperature range, it indicates that the cooling effect of the cooling device on the battery pack has not reached the expectation. Therefore, the processing terminal controls the valve of the fixed pipeline in the cooling device to open with the opening corresponding to the leak detection flow value according to the cooling device number, so as to circulate the coolant and provide data support for subsequent inspection of whether there is coolant leakage in the cooling device.

[0131] The leak detection flow value refers to the flow value when checking whether there is liquid leakage in the cooling device, and the specific value is determined by the operator according to the actual situation.

[0132] Step S401: Obtain the real-time detected flow value of the cooling device.

[0133] Among them, the real-time detected flow value refers to the actually detected flow value at the outlet of the fixed pipeline in the cooling device, which is detected by a flow meter and sent to the processing terminal.

[0134] Step S402: Judge whether the real-time detected flow value meets the requirements of the leak detection flow value.

[0135] Among them, the requirement of the leak detection flow value means being consistent with the leak detection flow value. The processing terminal judges whether the real-time detected flow value is consistent with the leak detection flow value, so as to determine whether the flow values at the inlet and outlet of the fixed pipeline are consistent.

[0136] Step S4021: If it meets the requirements, control the cooling device to cool the corresponding battery pack according to the changed stable temperature value.

[0137] Among them, if the processing terminal determines that the real-time detected flow value is consistent with the leak detection flow value, it indicates that there is no coolant leakage in the cooling device, and the reason why the cooling effect on the battery pack has not reached the expectation is only due to insufficient flow. Therefore, control the cooling device to cool the battery pack according to the changed stable temperature value, that is, perform the steps in Figure 3 .

[0138] Step S4022: If not, perform an alarm prompt according to the cooling device number and the preset liquid leakage prompt information.

[0139] Among them, if the processing terminal determines that the real-time detected flow value is inconsistent with the leak detection flow value, it indicates that there is a liquid leakage situation in the cooling device. Therefore, the cooling device number is displayed in the form of text or voice according to the liquid leakage prompt information, so as to prompt the personnel to repair the cooling device.

[0140] The liquid leakage prompt information refers to the information that prompts liquid leakage, which is stored in the processing terminal by the operator.

[0141] Refer to Figure 5 , the steps of controlling the cooling device to cool the corresponding battery pack according to the preset cooling method include:

[0142] Step S500: Obtain the number of devices with flow exceeding the limit.

[0143] Among them, the number of devices with flow exceeding the limit refers to the number of battery packs whose required coolant flow exceeds the upper limit flow of the corresponding cooling device, which is accumulated by the processing terminal when it determines that the cooling flow value does not meet the requirement of the cooling upper limit flow value.

[0144] Step S501: Judge whether the number of devices with flow exceeding the limit meets the requirement of the preset total number of devices.

[0145] Among them, the total number of devices refers to the total amount of all cooling devices, and the specific value is determined by the operator according to the actual situation of the cooling devices. The requirement of the total number of devices means being equal to the total number of devices.

[0146] The processing terminal judges whether the number of devices with flow exceeding the limit is equal to the total number of devices, so as to determine whether each battery pack needs an auxiliary device for auxiliary cooling.

[0147] Step S5011: If it meets the requirement, control the cooling device to cool the corresponding battery pack according to the preset shared cooling method.

[0148] Among them, if the processing terminal determines that the number of devices with flow exceeding the limit is equal to the total number of devices, it indicates that all battery packs need an auxiliary device for auxiliary cooling. Therefore, the cooling device is controlled to cool the battery pack according to the shared cooling method. The specific method refers to Figure 7 the steps.

[0149] The shared cooling method is a method that enables one auxiliary device to assist two cooling devices for cooling at the same time. The specific method refers to Figure 7 the steps.

[0150] Step S5012: If it does not meet the requirement, determine the calling device number according to the cooling device number and the preset calling number relationship.

[0151] Among them, the call sequence relationship refers to the corresponding relationship between the cooling device serial numbers and the auxiliary device serial numbers. One auxiliary device is set for every two cooling devices. Therefore, the cooling devices at the edge part correspond to one auxiliary device, while the cooling devices in the middle part correspond to two auxiliary devices. The cooling devices at the edge part have the priority to allocate the auxiliary device. That is, when one edge cooling device and an adjacent cooling device both need an auxiliary device, the auxiliary device between the two is preferentially allocated to the edge cooling device, and the adjacent cooling device can consider allocating the auxiliary device between it and another cooling device. After the operator corresponds the cooling device with the auxiliary device, a mapping table is formed.

[0152] If the processing terminal determines that the number of devices with exceeded flow rate is not equal to the total number of devices, it indicates that only some battery packs need to be assisted in cooling by the auxiliary device. Therefore, the calling device serial number is found in the mapping table corresponding to the call sequence relationship according to the cooling device serial number.

[0153] The calling device serial number refers to the serial number of the auxiliary device to be called, which is obtained by the processing terminal searching in the mapping table corresponding to the call sequence relationship according to the cooling device serial number.

[0154] Step S502: Control the cooling device and the preset auxiliary device to cool the corresponding battery pack respectively according to the cooling device serial number and the calling device serial number.

[0155] Among them, after determining the calling device serial number, the processing terminal controls the cooling device to cool the battery pack according to the cooling device serial number, and controls the auxiliary device to assist in cooling the battery pack according to the calling device serial number. For the specific method, refer to Figure 6 the steps.

[0156] The auxiliary device refers to the device that assists the cooling device to cool the battery pack. In this application, the liquid cooling method is adopted, including a moving pipeline and a linear module. The moving pipeline is controlled by the linear module to move between two fixed pipelines, so as to assist in cooling the fixed pipeline by adjusting the position; each moving pipeline is controlled to open and close through a separate valve, so as to control the coolant flow in each pipeline; the circulating pump is connected to the moving pipeline through the main pipe and the branch pipe, the other end of the circulating pump is connected to the radiator, and the other end of the radiator is connected to the moving pipeline, so as to realize the cycle of heat absorption and heat dissipation of the coolant. The coolant adopts ethylene glycol aqueous solution.

[0157] Refer to Figure 6 According to the cooling device serial number and the calling device serial number, the steps of controlling the cooling device and the preset auxiliary device to cool the corresponding battery pack respectively include:

[0158] Step S600: Control the cooling device to cool the corresponding battery pack with the cooling upper limit flow rate value according to the cooling device serial number.

[0159] Among them, the processing terminal controls the cooling device according to the cooling device serial number to cool the battery pack with the upper limit cooling flow value, so as to fully realize the cooling function of the cooling device and reduce the difficulty of cooling the subsequent auxiliary device.

[0160] Step S601: Analyze the cooling flow value and the upper limit cooling flow value to determine the called flow value.

[0161] Among them, the called flow value refers to the coolant flow required by the auxiliary device, which is determined by the processing terminal calculating the difference between the cooling flow value and the upper limit cooling flow value.

[0162] Step S602: Control the auxiliary device to move to the preset standard cooling position according to the called device serial number, and control the auxiliary device to assist in cooling the corresponding battery pack with the called flow value.

[0163] Among them, after the processing terminal determines the called device serial number, it controls the auxiliary device corresponding to the called device serial number to move to the standard cooling position, and controls the valve in the auxiliary device to open according to the called flow value, so as to make up for the flow that the cooling device cannot provide, so as to achieve effective cooling of the battery pack.

[0164] The standard cooling position refers to the position for assisting in cooling a single battery pack. Each auxiliary device has two standard cooling positions, and the two standard cooling positions correspond to the cooling device serial number respectively. The processing terminal determines which standard cooling position the auxiliary device moves to according to the cooling device serial number.

[0165] Refer to Figure 7 , the steps of controlling the cooling device to cool the corresponding battery pack according to the preset shared cooling method include:

[0166] Step S700: Control the cooling device to cool the corresponding battery pack with the upper limit cooling flow value according to the cooling device serial number.

[0167] Among them, the processing terminal controls the cooling device to cool the battery pack with the upper limit cooling flow value according to the cooling device serial number, so as to fully realize the cooling function of the cooling device and reduce the difficulty of cooling the subsequent auxiliary device.

[0168] Step S701: Analyze the cooling flow value and the upper limit cooling flow value to determine the flow excess value.

[0169] Among them, the flow excess value refers to the value by which the flow required by the battery pack exceeds the upper limit flow of the cooling device, which is determined by the processing terminal calculating the difference between the cooling flow value and the upper limit cooling flow value.

[0170] Step S702: Analyze the flow excess value, the corresponding cooling device serial number and the preset call serial number relationship to determine the exclusive device serial number and the shared device serial number.

[0171] Among them, the exclusive device serial number refers to the serial number of the auxiliary device that only assists one cooling device, and the shared device serial number refers to the serial number of the auxiliary device that simultaneously assists two cooling devices. There is only one shared device serial number, and the remaining auxiliary devices are all devices corresponding to the exclusive device serial numbers. The processing terminal calculates the sum of the flow rate excess values corresponding to adjacent serial numbers according to the cooling device serial numbers. If the sum does not exceed the upper limit flow rate value of the auxiliary device, the auxiliary device between the adjacent serial numbers is defined as a shared device, and the processing terminal looks up the serial number corresponding to this auxiliary device in the mapping table corresponding to the call serial number relationship according to the cooling device serial number, and defines this serial number as the shared device serial number, while the other serial numbers are exclusive device serial numbers.

[0172] The call serial number relationship in this step is the same as that in step S5012, and will not be elaborated here.

[0173] Step S703: Control the preset auxiliary device to move to the preset standard cooling position according to the exclusive device serial number, and control the auxiliary device to assist in cooling the corresponding battery pack with the flow rate excess value.

[0174] Among them, after determining the exclusive device serial number, the processing terminal controls the corresponding auxiliary device to move to the standard cooling position according to the exclusive device serial number, and controls the opening of the valve of the auxiliary device according to the flow rate excess value, so as to make up for the flow rate that the cooling device cannot provide, so as to achieve effective cooling of the battery pack.

[0175] The auxiliary device in this step is the same as the auxiliary device in step S502, and will not be elaborated here.

[0176] Step S704: Analyze the shared device serial number and the corresponding flow rate excess value to determine the shared flow rate value and the serial number movement ratio.

[0177] Among them, the shared flow rate value refers to the flow rate value of the shared auxiliary device, which is obtained by the processing terminal calculating the sum between the two flow rate excess values corresponding to the shared device serial number. The serial number movement ratio refers to the distance ratio of the adjustment of the auxiliary device at the shared cooling position, which is obtained by the processing terminal calculating the ratio of the two flow rate excess values.

[0178] Step S705: Control the auxiliary device to move to the preset shared cooling position according to the shared device serial number and the serial number movement ratio, and control the auxiliary device to assist in cooling the corresponding battery pack with the shared flow rate value.

[0179] Among them, after the processing terminal determines the serial number movement ratio, the processing terminal controls the auxiliary device to move to the shared cooling position according to the shared device serial number, adjusts according to the serial number movement ratio, and controls the opening of the valve of the auxiliary device according to the shared flow value, so that the flow of the auxiliary device is distributed to two adjacent battery packs in a corresponding proportion, thereby making up for the flow that the cooling device cannot provide, so as to achieve effective cooling of the battery packs.

[0180] Based on the same inventive concept, an embodiment of the present application provides an energy storage cabinet cooling system, including:

[0181] An acquisition module, configured to acquire real-time detected temperature values, cooling device serial numbers, stable changed temperature values, real-time detected flow values, and the number of devices with flow exceeding;

[0182] A memory, configured to store a program of an energy storage cabinet cooling method;

[0183] A processor, and the program in the memory can be loaded and executed by the processor and implement an energy storage cabinet cooling method.

[0184] Those skilled in the art can clearly understand that for the convenience and conciseness of description, only the above division of each functional module is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0185] An embodiment of the present application provides a computer-readable storage medium, storing a computer program that can be loaded and executed by a processor and implement an energy storage cabinet cooling method.

[0186] Computer storage media include, for example: various media such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs that can store program codes.

[0187] Based on the same inventive concept, an embodiment of the present application provides an intelligent terminal, including a memory and a processor, and a computer program that can be loaded and executed by the processor and implement an energy storage cabinet cooling method is stored on the memory.

[0188] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. For the specific working processes of the systems, devices, and units described above, reference can be made to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

[0189] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited by these embodiments. Any feature disclosed in this specification (including the abstract and drawings), unless specifically stated, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A method for cooling an energy storage cabinet, characterized in that: include: Get the real-time detected temperature value of the preset battery pack; Determine whether the real-time detected temperature value meets the requirements of the preset operating temperature range; If it meets the requirements, continue to obtain the real-time temperature value of the battery pack for cyclic judgment; If not, the real-time detected temperature value and the operating temperature range are analyzed to determine the abnormal temperature value; Obtaining the cooling device serial number corresponding to the abnormal temperature value; Controlling a preset cooling device to cool the corresponding battery pack according to the abnormal temperature value and the cooling device sequence number; The step of controlling a preset cooling device to cool the corresponding battery pack according to the abnormal temperature value and the cooling device serial number includes: determining a cooling flow value according to the abnormal temperature value and a preset temperature-cooling flow relationship; judging whether the cooling flow value meets the requirements of a preset cooling upper limit flow value; if not, controlling the cooling device to cool the corresponding battery pack according to a preset calling cooling method; if yes, controlling the corresponding cooling device to cool the corresponding battery pack according to the cooling device serial number and the cooling flow value; The step of controlling the cooling device to cool the corresponding battery pack according to the preset calling cooling method includes: obtaining the number of devices with excess flow; determining whether the number of devices with excess flow meets the requirement of the preset total number of devices; if so, controlling the cooling device to cool the corresponding battery pack according to the preset shared cooling method; if not, determining the calling device number according to the relationship between the cooling device number and the preset calling number; and controlling the cooling device and the preset auxiliary device to cool the corresponding battery pack according to the cooling device number and the calling device number; The step of controlling the cooling device to cool the corresponding battery group according to the preset shared cooling method includes: controlling the cooling device to cool the corresponding battery group with the cooling upper limit flow value according to the cooling device serial number; analyzing the cooling flow value and the cooling upper limit flow value to determine the flow excess value; analyzing the relationship between the flow excess value, the corresponding cooling device serial number and the preset call serial number to determine the exclusive device serial number and the shared device serial number; controlling the preset auxiliary device to move to the preset standard cooling position according to the exclusive device serial number, and controlling the auxiliary device to assist in cooling the corresponding battery group with the flow excess value; analyzing the shared device serial number and the corresponding flow excess value to determine the shared flow value and the serial number movement ratio; controlling the auxiliary device to move to the preset shared cooling position according to the shared device serial number and the serial number movement ratio, and controlling the auxiliary device to assist in cooling the corresponding battery group with the shared flow value.

2. The energy storage cabinet cooling method according to claim 1, characterized in that: The step of controlling the corresponding cooling device to cool the corresponding battery pack according to the cooling device sequence number and the cooling flow value comprises: Control the corresponding cooling device according to the cooling device sequence number to cool the corresponding battery pack with the cooling flow value; Obtain the changing stable temperature value of the battery pack; Determine whether the changing stable temperature value meets the requirements of the operating temperature range; If it meets the requirements, the corresponding cooling device is controlled to cool the corresponding battery pack with the cooling flow value according to the cooling device sequence number, and the changing stable temperature value of the battery pack is continuously obtained for cyclic judgment; If not, analyze the change stable temperature value and the operating temperature range to determine the temperature difference value; Determine the adjustment flow value according to the temperature difference value and the preset temperature difference flow relationship; The cooling flow value is adjusted according to the adjustment flow value, and the corresponding cooling device is controlled according to the cooling device sequence number to cool the corresponding battery pack with the adjusted cooling flow value.

3. The energy storage cabinet cooling method according to claim 2, characterized in that: If the changing stable temperature value does not meet the requirements of the operating temperature range, a leak detection step for the cooling device is also included, and the specific steps include: Controlling the corresponding cooling device according to the cooling device sequence number to cool the corresponding battery pack at a preset leakage detection flow value; Obtain the real-time detection flow value of the cooling device; Determine whether the real-time detection flow value meets the requirements of the leak detection flow value; If it meets the requirement, the cooling device is controlled to cool the corresponding battery pack according to the changed stable temperature value; If it does not meet the requirements, an alarm will be issued based on the cooling device serial number and the preset leakage prompt information.

4. The energy storage cabinet cooling method according to claim 1, characterized in that: The steps of controlling the cooling device and the preset auxiliary device to cool the corresponding battery pack according to the cooling device serial number and the calling device serial number include: Control the cooling device according to the cooling device sequence number to cool the corresponding battery pack at the cooling upper limit flow value; Analyze the cooling flow value and the cooling upper limit flow value to determine the calling flow value; The auxiliary device is controlled to move to a preset standard cooling position according to the calling device serial number, and the auxiliary device is controlled to call the flow value to assist in cooling the corresponding battery pack.

5. An energy storage cabinet cooling system, characterized in that: include: An acquisition module is used to obtain the real-time detected temperature value and the serial number of the cooling device; A memory, used to store a program of a method for cooling an energy storage cabinet according to any one of claims 1 to 4; The program in the memory can be loaded and executed by the processor to implement a method for cooling an energy storage cabinet as claimed in any one of claims 1 to 4.

6. An intelligent terminal, characterized in that: The invention comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and executes a method for cooling an energy storage cabinet as claimed in any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that: A computer program capable of being loaded by a processor and executing a method for cooling an energy storage cabinet according to any one of claims 1 to 4 is stored.

Images