Regulation and control method for energy storage system and related equipment thereof

Abstract

The invention provides a regulation and control method for an energy storage system and related equipment thereof. The method comprises the steps that environment monitoring data of a first environment where the energy storage system is located currently, cell temperature data of cells in the energy storage system and pre-charging and pre-discharging setting time preset by the energy storage system are acquired, and the setting time comprises starting time; if the time difference between the current time and the set time meets the preset time difference requirement, determining severe degree data corresponding to the first environment according to the environment monitoring data and the battery cell temperature data; according to the severity degree data and the set time, a control signal is sent to the battery management system, so that the battery management system controls the environment adjustment system to adopt a corresponding regulation strategy to regulate the first environment, and the first environment is converted into a preset second environment when the starting time is about to arrive or arrives.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage systems, and in particular to a control method for energy storage systems and related equipment. Background Art

[0002] With the development of energy storage technology and its widespread application, the operating efficiency and use environment of energy storage systems have gradually received attention. Liquid-cooled energy storage products have strong heat dissipation capabilities and good product temperature consistency, so the proportion of liquid-cooled energy storage products has gradually increased.

[0003] However, in the related art, in the solution of using liquid cooling equipment to control the temperature of the energy storage system, when the control strategy used for the energy storage system is set unreasonably, it is easy to cause the energy storage system to fail to work normally, thereby making it impossible for the energy storage system to charge and discharge normally and efficiently. Summary of the invention

[0004] The embodiments of the present application provide a control method for an energy storage system and related equipment thereof, aiming to ensure that the energy storage system can operate normally and improve the efficiency of charging and discharging of the energy storage system.

[0005] In a first aspect, an embodiment of the present application provides a control method for an energy storage system, the method comprising:

[0006] Acquire environmental monitoring data of a first environment in which an energy storage system is currently located, battery cell temperature data of battery cells in the energy storage system, and a pre-set pre-charge and discharge setting time of the energy storage system, wherein the setting time includes a start time;

[0007] If the time difference between the current time and the set time meets the preset time difference requirement, determining the severity data corresponding to the first environment according to the environmental monitoring data and the battery core temperature data;

[0008] According to the severity data and the set time, a control signal is sent to the battery management system so that the battery management system controls the environment adjustment system to adopt a corresponding control strategy to regulate the first environment, and when the start time is about to arrive or has arrived, the first environment is transformed into a preset second environment.

[0009] In a second aspect, an embodiment of the present application provides a computer device, the computer device comprising:

[0010] one or more processors;

[0011] Memory; and

[0012] One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the control method for the energy storage system.

[0013] In a third aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program is loaded by a processor to execute the steps in a control method for an energy storage system.

[0014] In a fourth aspect, an embodiment of the present application provides a computer program product, including a computer program / instruction, which implements the steps of the control method for an energy storage system when executed by a processor.

[0015] Beneficial effects of the embodiments of the present application:

[0016] In an embodiment of the present application, when the time difference between the current time and the pre-set pre-charge and discharge setting time of the energy storage system meets the preset time difference requirement, the environmental monitoring data of the first environment currently in which the energy storage system is located and the battery cell temperature data of the battery cells in the energy storage system are analyzed to determine the severity data corresponding to the first environment, and according to the severity data and the setting time, a control signal is sent to the battery management system to control the environment adjustment system through the battery management system to adopt the corresponding control strategy to regulate the first environment, and when the start time is about to arrive or has arrived, the first environment is transformed into a preset second environment to ensure that the energy storage system can work normally and improve the efficiency of charging and discharging of the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a schematic diagram of an application environment of a control method for an energy storage system provided in an embodiment of the present application;

[0019] Figure 2 is a schematic flow chart of an embodiment of a control method for an energy storage system provided in an embodiment of the present application;

[0020] Figure 3 It is a schematic diagram of the structure of an embodiment of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words such as "upper" and "lower" used generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0022] Because in the related art, in the scheme of using liquid cooling equipment to perform temperature control on the energy storage system, when the control strategy for the energy storage system is set unreasonably, it is easy to cause the energy storage system to fail to work normally, so that the energy storage system cannot be charged and discharged normally and efficiently. To this end, the embodiment of the present application provides a control method for an energy storage system and related equipment, so that when the time difference between the current time and the pre-set pre-charge and discharge setting time of the energy storage system meets the preset time difference requirement, the environmental monitoring data of the first environment currently in which the energy storage system is located and the battery cell temperature data of the battery cell in the energy storage system are analyzed, so as to determine the severity data corresponding to the first environment, and send a control signal to the battery management system according to the severity data and the setting time, so as to control the environment adjustment system through the battery management system to adopt the corresponding control strategy to control the first environment, and when the start time is about to arrive or has arrived, the first environment is changed to the preset second environment, so as to ensure that the energy storage system can work normally and improve the efficiency of charging and discharging of the energy storage system. For specific solutions, please refer to the following specific description.

[0023] It should be noted that, in the following, the terms "battery module", "battery", "battery element", "battery cell" and "battery pack" can be used interchangeably and can refer to any of a variety of different rechargeable battery chemistries and structures, including but not limited to lithium ion (such as lithium ion phosphate, lithium cobalt oxide, lithium iron phosphate, other lithium metal oxides, etc.), lithium ion polymer, nickel metal hydride, nickel cadmium, nickel metal hydride, nickel zinc, silver zinc or other battery types / structures.

[0024] In order to better understand the control method for an energy storage system and related equipment provided in the embodiments of the present application, the application environment applicable to the embodiments of the present application is first described below.

[0025] See also Figure 1 , Figure 1A schematic diagram of an application environment of a control method for an energy storage system provided in an embodiment of the present application is shown. As an implementation mode, the control method for an energy storage system provided in an embodiment of the present application can be applied to a computer device. The computer device can be as follows: Figure 1 The server 110 shown in the figure can be connected to the terminal device 120 through a network. The network is used to provide a medium for a communication link between the server 110 and the terminal device 120. The network can include various connection types, such as a wired communication link, a wireless communication link, etc., which is not limited in the embodiment of the present application.

[0026] It should be understood that Figure 1 The server 110, network and terminal device 120 are merely illustrative. Depending on the implementation requirements, there may be any number of energy management systems, networks and terminal devices. It is understood that the embodiments of the present application may also allow multiple terminal devices 120 to access the server 110 at the same time.

[0027] In some embodiments, the server 110 may include an energy management system, and the terminal device 120 may include a battery management system and other collection devices. The terminal device 120 can obtain collection data, such as battery cell temperature data and environmental monitoring data, and send sensor data to the server 110 through the network. After receiving the sensor data, the server 110 can process these sensor data through the control method for the energy storage system of the embodiment of the present application.

[0028] Next, a control method for an energy storage system provided in an embodiment of the present application is introduced.

[0029] In the embodiment of the control method for the energy storage system of the embodiment of the present application, a computer device is used as an execution subject. For the sake of simplicity and convenience of description, the execution subject will be omitted in the subsequent method embodiments. The method includes: obtaining environmental monitoring data of a first environment in which the energy storage system is currently located, battery cell temperature data of the battery cells in the energy storage system, and a pre-set pre-charge and discharge setting time of the energy storage system, wherein the setting time includes a start time; if the time difference between the current time and the setting time meets the preset time difference requirement, then determining the severity data corresponding to the first environment according to the environmental monitoring data and the battery cell temperature data; and sending a control signal to a battery management system according to the severity data and the setting time, so that the battery management system controls the environment adjustment system to adopt a corresponding control strategy to control the first environment, and when the start time is about to arrive or has arrived, the first environment is transformed into a preset second environment.

[0030] The control method for the energy storage system described in the present application is described in detail below with reference to the accompanying drawings. Although the present application provides method operation steps as shown in the following embodiments or drawings, more or fewer operation steps may be included in the method based on routine or no creative labor. In the steps where there is no necessary causal relationship logically, the execution order of these steps is not limited to the execution order provided in the embodiments of the present application. When the method is executed in an actual object processing process or when the device is executed, it can be executed in the method sequence shown in the embodiments or drawings or in parallel (for example, in a parallel processor or multi-threaded processing environment).

[0031] For details, please refer to Figure 2 , Figure 2 It is a flow chart of an embodiment of a control method for an energy storage system provided in an embodiment of the present application. The method specifically includes: steps 201 to 203.

[0032] 201. Obtain environmental monitoring data of a first environment in which an energy storage system is currently located, battery cell temperature data of battery cells in the energy storage system, and a preset pre-charge and discharge setting time of the energy storage system, wherein the setting time includes a start time.

[0033] The first environment refers to the environment of the energy storage system before environmental control. For example, the current weather is snowing, and the first environment of the energy storage system is that snow or freezing occurs on the four sides and the top of the container of the energy storage system, and the temperature reaches minus 40°C, and the cell temperature of the battery cell is also minus 40°C.

[0034] Energy storage systems can include the following key components:

[0035] Battery: The battery is the core part of the energy storage system, responsible for storing and releasing energy. Common battery types include lead-acid batteries, nickel-metal hydride batteries, lithium-ion batteries, etc.

[0036] Battery Management System (BMS): BMS is responsible for monitoring and managing the status of the battery, including voltage, current, temperature and other parameters to ensure the safety and efficiency of the battery. It also sends the collected battery temperature data of the battery cells in the energy storage system to the energy management system.

[0037] Power Conversion System (PCS): PCS is used to control the charging and discharging process of the battery to achieve the conversion and management of electrical energy. It usually includes an inverter and a rectifier, and can perform AC-DC conversion.

[0038] Energy Management System (EMS): EMS is responsible for the energy scheduling and management of the entire system, including data collection, network monitoring and energy optimization.

[0039] Thermal management system: used to control the temperature of the system to ensure that it operates within a safe range. Common thermal management technologies include air cooling, liquid cooling, etc.

[0040] Fire protection system: used to prevent and control the occurrence of fire and ensure the safety of the system.

[0041] Electrical components and mechanical support: includes various electrical equipment and mechanical structures to support the overall operation of the system.

[0042] Auxiliary equipment: such as transformers, cables, containers, etc., used for system integration and connection.

[0043] These components are assembled into an overall energy storage system through scientific arrangement and connection to achieve energy storage and release.

[0044] In addition, the energy storage system of the present application may also include an environmental monitoring data acquisition system, which is connected to the energy management system, and the environmental monitoring data acquisition system includes an environmental temperature sensor and a pressure sensor arranged on the container, the pressure sensor is configured to collect pressure sensing data generated by snow accumulation on the container, and the environmental temperature sensor is configured to collect environmental temperature data outside the container. The environmental monitoring data includes the pressure sensing data and the environmental temperature data, and the environmental monitoring data acquisition system is configured to transmit the collected environmental monitoring data to the energy management system.

[0045] The number and location of the pressure sensors and ambient temperature sensors can be set according to actual needs. For example, the number of pressure sensors can be one or more, and the pressure sensor can be set at the top of the outside of the container. When the number of pressure sensors is one, it can be set in the central area of ​​the top of the outside of the container. When the number of pressure sensors is multiple, multiple pressure sensors can be evenly spaced and set at the top of the outside of the container. Similarly, the number of ambient temperature sensors can be one or more,

[0046] In some implementations, when there are multiple pressure sensors, the method may further include: acquiring multiple initial pressure sensing data collected by each pressure sensor; and determining target pressure sensing data based on the multiple initial pressure sensing data, wherein the pressure sensing data has higher accuracy.

[0047] Among them, the multiple pressure sensor data of the target determined based on the initial pressure sensor data may include: identifying abnormal pressure sensor data of the multiple initial pressure sensor data; eliminating the abnormal pressure sensor data to obtain processed pressure sensor data; and taking the average value of the processed pressure sensor data as the target pressure sensor data.

[0048] In some implementations, when there are multiple ambient temperature sensors, the method may further include: obtaining multiple initial ambient temperature sensors collected by each ambient temperature sensor; and determining the ambient temperature sensor of the target based on the multiple initial ambient temperature sensors, wherein the ambient temperature sensor has higher accuracy.

[0049] Among them, the multiple ambient temperature sensors of the target are determined based on the initial ambient temperature sensors, which may include: identifying abnormal ambient temperature sensors of the multiple initial ambient temperature sensors; eliminating the abnormal ambient temperature sensors to obtain processed ambient temperature sensors; and taking the average value of the processed ambient temperature sensors as the target ambient temperature sensor.

[0050] Among them, the pre-set pre-charge and discharge setting time of the energy storage system can be pre-set in the energy management system, wherein pre-charge and discharge can include pre-charge and pre-discharge, that is, corresponding to the charging process and discharging process of the energy storage system. It can be understood that the user can pre-set the start time and stop time of pre-charge, and can also pre-set the start time and stop time of pre-discharge, so the setting time can be a time period, and the setting time can include the start time and stop time. As for the length of the setting time and when to set the start time and stop time, they can be set according to user needs.

[0051] In one embodiment, in order to effectively ensure the effectiveness of the solution, the method also includes: if the set time for pre-charging and discharging is obtained, the current time is obtained, and based on the current time and the start time in the set time, it is determined whether to generate reminder data, and the reminder data may include reminder content that reminds the user that the interval time is too short and the start time should be reset; if the interval time between the current time and the set time is less than a preset interval time threshold, reminder data is generated, and the reminder data is used to remind the user that the interval time is too short and the start time should be reset.

[0052] In the embodiment of the present application, a reasonable control time can be provided for the control process of the energy storage system through the above-mentioned reminder method.

[0053] 202. If the time difference between the current time and the set time meets a preset time difference requirement, determine the severity data corresponding to the first environment according to the environmental monitoring data and the battery core temperature data.

[0054] In order to ensure that the energy storage system can work normally when the startup time is about to arrive or has arrived, the preset time difference should be able to give the environmental adjustment system sufficient control time. The specific control time depends on the control capability of the environmental adjustment system and the environmental difference between the first environment and the second environment. Therefore, the time difference requirement can be obtained based on actual experience or through simulation.

[0055] In some embodiments, the step of determining the severity data corresponding to the first environment based on the environmental monitoring data and the battery cell temperature data includes: obtaining a battery cell temperature reference threshold corresponding to the battery cell temperature data and an environmental monitoring reference threshold corresponding to the environmental monitoring data; dividing the severity level of the first environment according to a first comparison result of the battery cell temperature and the battery cell temperature reference threshold and a second comparison result of the environmental monitoring data and the corresponding environmental monitoring reference threshold to determine the severity data corresponding to the first environment.

[0056] In some embodiments, before obtaining the battery cell temperature reference threshold corresponding to the battery cell temperature data and the environmental monitoring reference threshold corresponding to the environmental monitoring data, it may also include: setting the battery cell temperature reference threshold corresponding to the battery cell temperature data and the environmental monitoring reference threshold corresponding to the environmental monitoring data; storing the battery cell temperature reference threshold corresponding to the battery cell temperature data and the environmental monitoring reference threshold corresponding to the environmental monitoring data in a preset target storage object.

[0057] The target storage object can be set according to actual needs, such as a database, a designated storage medium, or cloud storage.

[0058] The battery cell temperature reference threshold corresponding to the battery cell temperature data and the environmental monitoring reference threshold corresponding to the environmental monitoring data can be set according to the analysis results of the properties of each system equipment and previous usage experience. It should be noted that the battery cell temperature reference threshold and the environmental monitoring reference threshold can be a numerical range or a numerical value, and are set according to actual needs.

[0059] The battery cell temperature reference threshold corresponding to the battery cell temperature data and the environment monitoring reference threshold corresponding to the environment monitoring data may be obtained by reading from a target storage object.

[0060] In some embodiments, the battery cell temperature reference threshold includes a first battery cell low temperature reference threshold, a second battery cell low temperature reference threshold, a third battery cell low temperature reference threshold, a fourth battery cell low temperature reference threshold, a fifth battery cell low temperature reference threshold, a sixth battery cell high temperature reference threshold, a seventh battery cell high temperature reference threshold, an eighth battery cell high temperature reference threshold and a ninth battery cell high temperature reference threshold, and the environmental monitoring reference threshold includes a snow accumulation and freezing alarm threshold;

[0061] The step of classifying the severity level of the first environment according to the first comparison result of the battery cell temperature and the battery cell temperature reference threshold and the second comparison result of the environmental monitoring data and the corresponding environmental monitoring reference threshold comprises:

[0062] If the environmental monitoring data is within the snow accumulation and freezing alarm threshold, the severity data corresponding to the first environment is determined to be the first severity level; wherein, the first environment corresponding to the first severity level may be the accumulation of snow around and on the top of the container of the energy storage system (causing the vents of the container to freeze) and the solidification of the liquid medium in the liquid cooling equipment in the energy storage system, resulting in the inability to start or work of the energy storage system.

[0063] If the environmental monitoring data is not within the snow accumulation and freezing alarm threshold, and the battery cell temperature data is within the first battery cell low temperature reference threshold, it is determined that the severity data corresponding to the first environment is the second severity level; the first environment corresponding to the second severity level may be a situation where there is no snow accumulation and freezing around and on the top of the container of the energy storage system, but the liquid medium in the liquid cooling equipment in the energy storage system solidifies, resulting in the inability to start or work of the energy storage system.

[0064] If the environmental monitoring data is not within the snow and freezing alarm threshold, and the battery cell temperature data is within the second battery cell low temperature reference threshold or the battery cell temperature data is within the ninth battery cell high temperature reference threshold, then it is determined that the severity data corresponding to the first environment is the third severity level; the first environment corresponding to the third severity level is that the liquid medium in the liquid cooling equipment in the energy storage system has not solidified, but the difference between its battery cell temperature and the target temperature of the battery cell's operable working range is very large, which still causes the energy storage system to be unable to start or work.

[0065] If the environmental monitoring data is not within the snow and freezing alarm threshold, and the battery cell temperature data is within the third battery cell low temperature reference threshold or the battery cell temperature data is within the eighth battery cell high temperature reference threshold, then it is determined that the severity data corresponding to the first environment is the fourth severity level; the first environment corresponding to the fourth severity level is that the liquid medium in the liquid cooling equipment in the energy storage system has not solidified, but the difference between its battery cell temperature and the target temperature of the battery cell's operable working range is large, which still causes the energy storage system to be unable to start or work.

[0066] If the environmental monitoring data is not within the snow and freezing alarm threshold, and the battery cell temperature data is within the fourth battery cell low temperature reference threshold or the battery cell temperature data is within the seventh battery cell high temperature reference threshold, then the severity data corresponding to the first environment is determined to be level five severity level; the first environment corresponding to the fifth severity level is that the liquid medium in the liquid cooling equipment in the energy storage system has not solidified, and its battery cell temperature is within the target temperature of the battery cell's operable working range, but the temperature difference from the suitable temperature of the battery cell is large.

[0067] If the environmental monitoring data is not within the snow accumulation and freezing alarm threshold, and the battery cell temperature data is within the fifth battery cell low temperature reference threshold or the battery cell temperature data is within the sixth battery cell high temperature reference threshold, then it is determined that the severity data corresponding to the first environment is level 6 severity level. The first environment corresponding to the sixth severity level is that the liquid medium in the liquid cooling device in the energy storage system has not solidified, and the battery cell temperature is within the target temperature of the battery cell's operable operating range, but has not yet reached the most suitable temperature of the battery cell.

[0068] In a specific embodiment, the first battery cell low temperature reference threshold T1 is (-∞, -40℃], the second battery cell low temperature reference threshold T2 is (-40℃, -20℃], the third battery cell low temperature reference threshold T3 is (-20℃, -10℃], the fourth battery cell low temperature reference threshold T41 is (-10℃, -0℃], the fifth battery cell low temperature reference threshold T5 is (0℃, 15℃], the sixth battery cell high temperature reference threshold T6 is [30℃, 35℃), the seventh battery cell high temperature reference threshold T7 is [35℃, 40℃), the eighth battery cell high temperature reference threshold T8 is [40℃, 55℃) and the ninth battery cell high temperature reference threshold T9 is [55℃, -∞).

[0069] The energy storage system includes a container and an environmental monitoring data acquisition system, which is connected to the energy management system. The environmental monitoring data acquisition system includes an environmental temperature sensor and a pressure sensor arranged on the container. The pressure sensor is configured to collect pressure sensing data generated by snow accumulation on the container, and the environmental temperature sensor is configured to collect environmental temperature data outside the container. The environmental monitoring data includes the pressure sensing data and the environmental temperature data, and the snow accumulation and freezing alarm threshold includes a pressure sensing alarm threshold and an environmental temperature alarm threshold. If the environmental monitoring data is within the snow accumulation and freezing alarm threshold, the step of determining that the severity data corresponding to the first environment is a first-level severity level includes: if the pressure sensing reference threshold is within the pressure sensing alarm threshold and the environmental temperature data is within the environmental temperature alarm threshold, determining that the severity data corresponding to the first environment is a first-level severity level.

[0070] Among them, the method of obtaining and setting the threshold value of the sensor parameter is similar. For details, please refer to the introduction of other threshold values ​​in the previous article, which will not be repeated here.

[0071] 203. Send a control signal to the battery management system based on the severity data and the set time, so that the battery management system controls the environment adjustment system to adopt a corresponding control strategy to regulate the first environment, and when the start time is about to arrive or has arrived, the first environment is converted into a preset second environment.

[0072] Among them, the second environment refers to the environment of the energy storage system after the first environment is regulated by the environmental adjustment system. For example, the first environment is that the current weather is snowy weather, and the first environment of the energy storage system is that snow or freezing appears on the four sides and the top of the container of the energy storage system, the temperature reaches minus 40°C, and the cell temperature of the battery cell is also minus 40°C. After the first environment is regulated by the environmental adjustment system, the second environment is that the snow or freezing on the four sides and the top of the container is removed, the temperature in the container is above 0°C, and the cell temperature of the battery cell reaches 20°C.

[0073] In some embodiments, the step of sending a control signal to a battery management system based on the severity data and the set time, so that the battery management system controls the environment adjustment system to adopt a corresponding control strategy to regulate the first environment, and when the start time is about to be reached or has been reached, the first environment is transformed into a preset second environment, includes: obtaining the current time; subtracting the start time and the current time to obtain a time difference; determining a corresponding control strategy based on the time difference and the severity data; and sending a control signal based on the control strategy to the battery management system, so that the battery management system controls the environment adjustment system to adopt a corresponding control strategy to regulate the first environment, and when the start time is about to be reached or has been reached, the first environment is transformed into the preset second environment.

[0074] Among them, the severity data includes level one severity level, level two severity level, level three severity level, level four severity level, level five severity level and level six severity level, and the environmental adjustment system includes snow removal and thawing equipment, refrigeration equipment and liquid cooling equipment, and the liquid cooling equipment is configured to heat or cool the battery cell.

[0075] In some embodiments, the step of determining the corresponding control strategy according to the time difference value and the severity data includes: obtaining a time difference threshold corresponding to the time difference value, the time difference threshold including a first time difference threshold, a second time difference threshold, a third time difference threshold, a fourth time difference threshold, a fifth time difference threshold and a sixth time difference threshold;

[0076] If the time difference is within the first time difference threshold and the severity data is a first-level severity level, the corresponding first control strategy is determined, and the first control strategy is to turn on the snow removal and thawing function of the snow removal and thawing equipment, and the snow removal and thawing equipment is configured to remove the snow at the air inlet of the liquid cooling equipment and thaw the liquid cooling equipment; wherein the power supply of the snow removal and thawing equipment can be AC ​​power or other backup power supplies, rather than the energy storage system. Furthermore, the power supply of the equipment in the environmental adjustment system can all be AC ​​power, other backup power supplies or the energy storage system itself, but it should be noted that only when the environment in which the energy storage system is located is a preset suitable target environment, can the energy storage system itself power the environmental adjustment system. Among them, the thawing device can be a resistor, and the resistor can be set in the area that needs to be thawed in the container, such as near the air outlet, the surface of the battery cell, etc.

[0077] If the time difference is within the second time difference threshold and the severity data is a second severity level, a corresponding second control strategy is determined, wherein the second control strategy is to start the thawing function of the snow removal and thawing or to start the refrigeration function of the refrigeration equipment;

[0078] If the time difference is within the third time difference threshold and the severity data is a third severity level, a corresponding third control strategy is determined, and the third control strategy is to turn on the heating function of the liquid cooling device or turn on the heat dissipation function of the liquid cooling device;

[0079] If the time difference is within the fourth time difference threshold and the severity data is a fourth severity level, a corresponding fourth control strategy is determined, and the fourth control strategy is to turn on the heating function of the liquid cooling device or turn on the heat dissipation function of the liquid cooling device;

[0080] If the time difference is within the fifth time difference threshold and the severity data is a fifth severity level, a corresponding fifth control strategy is determined, and the fifth control strategy is to turn on the heating function of the liquid cooling device or turn on the heat dissipation function of the liquid cooling device;

[0081] If the time difference is within the sixth time difference threshold and the severity data is a sixth severity level, a corresponding sixth control strategy is determined, and the sixth control strategy is to turn on the heating function of the liquid cooling device or turn on the heat dissipation function of the liquid cooling device.

[0082] In some embodiments, in addition to using a liquid cooling device for heat dissipation, a phase change material may be provided on the surface of the battery cell, and the battery cell is cooled by the phase change material and the liquid cooling device.

[0083] It should be noted that the control strategy for each level includes a heating strategy and a cooling strategy. The choice of which strategy depends on the ambient temperature and the battery cell temperature. When both temperatures are higher than the appropriate target temperature range of the battery cell, the cooling strategy is selected. When both temperatures are lower than the appropriate target temperature range of the battery cell, the heating strategy is selected.

[0084] In some embodiments, before obtaining the time difference threshold corresponding to the time difference value, the method may further include: setting the time difference threshold corresponding to the time difference value; and storing the time difference threshold corresponding to the time difference value in a preset target storage object.

[0085] The target storage object can be set according to actual needs, such as a database, a designated storage medium, or cloud storage.

[0086] The time difference threshold corresponding to the time difference value can be set according to the analysis results of the properties of each system device and previous usage experience. It should be noted that the time difference threshold can be a numerical range or a numerical value, which is set according to actual needs.

[0087] The time difference threshold corresponding to the time difference value may be obtained by reading from the target storage object.

[0088] In a specific implementation, the time difference threshold includes a first time difference threshold, a second time difference threshold, a third time difference threshold, a fourth time difference threshold, a fifth time difference threshold and a sixth time difference threshold.

[0089] In a specific embodiment, the first time difference threshold t1 is [3h, +∞), the second time difference threshold t2 is [2.5h, 3h), the third time difference threshold t3 is [2h, 2.5h), the fourth time difference threshold t41 is [1.5h, 2h), the fifth time difference threshold t5 is [1h, 1.5h), and the sixth time difference threshold t6 is [0.5h, 1h).

[0090] Beneficial effects of this application:

[0091] In the embodiment of the present application, when the time difference between the current time and the pre-set pre-charge and discharge setting time of the energy storage system meets the preset time difference requirement, the environmental monitoring data of the first environment currently in which the energy storage system is located and the battery cell temperature data of the battery cells in the energy storage system are analyzed to determine the severity data corresponding to the first environment, and send a control signal to the battery management system according to the severity data and the setting time, so that the battery management system controls the environment adjustment system to adopt the corresponding control strategy to control the first environment, and when the start time is about to arrive or has arrived, the first environment is converted into a preset second environment, so as to ensure that the energy storage system can work normally and improve the efficiency of charging and discharging of the energy storage system.

[0092] In some embodiments, the environmental adjustment system includes a fan, and the method further includes: obtaining the ambient temperature data within the set time; if the ambient temperature data meets the preset control conditions, starting the fan through the battery management system, and the fan is configured to blow external cold air into the battery cell for heat dissipation.

[0093] The control condition may be that the ambient temperature is lower than 10°C.

[0094] In the embodiment of the present application, a fan is introduced when the ambient temperature data meets the preset control conditions, and the fan is used to dissipate the heat of the battery cell, thereby effectively saving energy.

[0095] Based on the same inventive concept, the embodiment of the present application also provides a computer device, which may be a server or a terminal device, and includes a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps of the above-mentioned control method when executing the computer program. Thereby, various functions are realized, for example:

[0096] Acquire environmental monitoring data of a first environment in which an energy storage system is currently located, battery cell temperature data of battery cells in the energy storage system, and a preset pre-charge and discharge setting time of the energy storage system, wherein the setting time includes a start time; if a time difference between the current time and the setting time meets a preset time difference requirement, determine severity data corresponding to the first environment according to the environmental monitoring data and the battery cell temperature data; send a control signal to a battery management system according to the severity data and the setting time, so as to control the environment adjustment system through the battery management system to adopt a corresponding control strategy to regulate the first environment, so that when the start time is about to be reached or has been reached, the first environment is transformed into a preset second environment.

[0097] The scheme of the application embodiment is adopted, by analyzing the environmental monitoring data of the first environment currently in which the energy storage system is located and the battery cell temperature data of the battery cells in the energy storage system when the time difference between the current time and the pre-set pre-charge and discharge setting time of the energy storage system meets the preset time difference requirement, so as to determine the severity data corresponding to the first environment, and send a control signal to the battery management system according to the severity data and the setting time, so as to control the environment adjustment system through the battery management system to adopt the corresponding control strategy to regulate the first environment, and when the start time is about to arrive or has arrived, the first environment is transformed into the preset second environment, so as to ensure that the energy storage system can work normally and improve the efficiency of charging and discharging of the energy storage system.

[0098] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0099] In one embodiment, the computer device is a terminal device, for example, its internal structure diagram can be as follows: Figure 3As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are 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 and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a control method is implemented. The display unit of the computer device is used to form a visually visible image, and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covered on the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse, etc.

[0100] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0101] Based on the same inventive concept, an embodiment of the present application also provides a computer-readable storage medium, which may include: a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0102] Since the computer program stored in the computer-readable storage medium can execute any one of the control methods provided in the embodiments of the present application, the beneficial effects that can be achieved by any one of the control methods provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0103] Based on the same inventive concept, the embodiment of the present application further provides a computer program product or a computer program, which includes a computer instruction, and the computer instruction is stored in a computer-readable storage medium. The processor of the computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the method provided in various optional implementations in the above embodiments.

[0104] It should be noted that the object data (including but not limited to user device information, user personal information, etc.) and conversation data involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data need to comply with relevant laws, regulations and standards of relevant countries and regions. A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and 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-mentioned methods.

[0105] Any reference to the memory, database or other media used in the embodiments provided in the present application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (Re RAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0106] The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a distributed database based on blockchain, etc., but is not limited thereto. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a control method logic device based on quantum computing, etc., but is not limited thereto.

[0107] In the above-mentioned control method, computer-readable storage medium, computer device, and computer program product embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process and beneficial effects of the control method, computer-readable storage medium, computer program product, computer device and its corresponding units described above can refer to the description of the control method in the above embodiment, and will not be repeated here.

[0108] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0109] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A control method for an energy storage system, characterized in that: The method comprises: Acquire environmental monitoring data of a first environment in which an energy storage system is currently located, battery cell temperature data of battery cells in the energy storage system, and a pre-set pre-charge and discharge setting time of the energy storage system, wherein the setting time includes a start time; If the time difference between the current time and the set time meets the preset time difference requirement, determining the severity data corresponding to the first environment according to the environmental monitoring data and the battery core temperature data; According to the severity data and the set time, a control signal is sent to the battery management system so that the battery management system controls the environment adjustment system to adopt a corresponding control strategy to regulate the first environment, and when the start time is about to arrive or has arrived, the first environment is transformed into a preset second environment.

2. The control method for an energy storage system according to claim 1, characterized in that: The step of determining the severity data corresponding to the first environment according to the environmental monitoring data and the battery core temperature data comprises: Acquire a battery cell temperature reference threshold corresponding to the battery cell temperature data and an environment monitoring reference threshold corresponding to the environment monitoring data; According to a first comparison result between the battery cell temperature and the battery cell temperature reference threshold and a second comparison result between the environmental monitoring data and the corresponding environmental monitoring reference threshold, the severity level of the first environment is divided to determine the severity data corresponding to the first environment.

3. The control method for an energy storage system according to claim 2, characterized in that: The battery cell temperature reference thresholds include a first battery cell low temperature reference threshold, a second battery cell low temperature reference threshold, a third battery cell low temperature reference threshold, a fourth battery cell low temperature reference threshold, a fifth battery cell low temperature reference threshold, a sixth battery cell high temperature reference threshold, a seventh battery cell high temperature reference threshold, an eighth battery cell high temperature reference threshold and a ninth battery cell high temperature reference threshold, and the environmental monitoring reference threshold includes a snow accumulation and freezing alarm threshold; The step of classifying the severity level of the first environment according to the first comparison result of the battery cell temperature and the battery cell temperature reference threshold and the second comparison result of the environmental monitoring data and the corresponding environmental monitoring reference threshold comprises: If the environmental monitoring data is within the snow accumulation and freezing alarm threshold, determining that the severity data corresponding to the first environment is a first-level severity level; If the environmental monitoring data is not within the snow accumulation and freezing alarm threshold, and the battery cell temperature data is within the first battery cell low temperature reference threshold, it is determined that the severity data corresponding to the first environment is a second severity level; If the environmental monitoring data is not within the snow and freezing alarm threshold, and the battery cell temperature data is within the second battery cell low temperature reference threshold or the battery cell temperature data is within the ninth battery cell high temperature reference threshold, it is determined that the severity data corresponding to the first environment is a third severity level; If the environmental monitoring data is not within the snow accumulation and freezing alarm threshold, and the battery cell temperature data is within the third battery cell low temperature reference threshold or the battery cell temperature data is within the eighth battery cell high temperature reference threshold, it is determined that the severity data corresponding to the first environment is a fourth severity level; If the environmental monitoring data is not within the snow accumulation and freezing alarm threshold, and the battery cell temperature data is within the fourth battery cell low temperature reference threshold or the battery cell temperature data is within the seventh battery cell high temperature reference threshold, it is determined that the severity data corresponding to the first environment is a level five severity level; If the environmental monitoring data is not within the snow and freezing alarm threshold, and the battery cell temperature data is within the fifth battery cell low temperature reference threshold or the battery cell temperature data is within the sixth battery cell high temperature reference threshold, it is determined that the severity data corresponding to the first environment is a sixth severity level.

4. The control method for energy storage system according to claim 3, characterized in that: The energy storage system includes a container and an environmental monitoring data acquisition system, the environmental monitoring data acquisition system is connected to the energy management system, the environmental monitoring data acquisition system includes an environmental temperature sensor and a pressure sensor arranged on the container, the pressure sensor is configured to collect pressure sensing data generated by snow accumulation on the container, the environmental temperature sensor is configured to collect environmental temperature data outside the container, the environmental monitoring data includes the pressure sensing data and the environmental temperature data, and the snow accumulation and freezing alarm threshold includes a pressure sensing alarm threshold and an environmental temperature alarm threshold; The step of determining that the severity data corresponding to the first environment is a first-level severity level if the environmental monitoring data is within the snow and freezing alarm threshold comprises: If the pressure sensing reference threshold is within the pressure sensing alarm threshold and the ambient temperature data is within the ambient temperature alarm threshold, it is determined that the severity data corresponding to the first environment is a first-level severity level.

5. The control method for energy storage system according to claim 4, characterized in that: The environmental adjustment system includes a fan, and the method further includes: Acquiring the ambient temperature data within the set time; If the ambient temperature data meets the preset control conditions, the fan is started by the battery management system, and the fan is configured to blow external cold air into the battery cell for heat dissipation.

6. The control method for energy storage system according to claim 1, characterized in that: The step of sending a control signal to a battery management system according to the severity data and the set time, so that the battery management system controls the environment adjustment system to adopt a corresponding control strategy to adjust the first environment, and when the start time is about to arrive or has arrived, the first environment is changed into a preset second environment, comprises: Get the current time; Subtract the start time from the current time to obtain a time difference; Determine a corresponding control strategy according to the time difference and the severity data; And send a control signal based on the regulation strategy to the battery management system, so that the battery management system controls the environment adjustment system to adopt the corresponding regulation strategy to regulate the first environment, so that the first environment is transformed into a preset second environment when the start time is about to arrive or has arrived.

7. The control method for an energy storage system according to claim 6, characterized in that: The severity data includes a first severity level, a second severity level, a third severity level, a fourth severity level, a fifth severity level, and a sixth severity level, and the environment adjustment system includes a snow removal and thawing device, a refrigeration device, and a liquid cooling device, and the liquid cooling device is configured to heat or cool the battery cell; The step of determining a corresponding control strategy according to the time difference and the severity data comprises: Obtaining a time difference threshold corresponding to the time difference value, wherein the time difference threshold includes a first time difference threshold, a second time difference threshold, a third time difference threshold, a fourth time difference threshold, a fifth time difference threshold and a sixth time difference threshold; If the time difference is within the first time difference threshold and the severity data is a first severity level, a corresponding first control strategy is determined, wherein the first control strategy is to start the snow removal and thawing function of the snow removal and thawing device, wherein the snow removal and thawing device is configured to remove snow at the air inlet of the liquid cooling device and thaw the liquid cooling device; If the time difference is within the second time difference threshold and the severity data is a second severity level, a corresponding second control strategy is determined, wherein the second control strategy is to start the thawing function of the snow removal and thawing or to start the refrigeration function of the refrigeration equipment; If the time difference is within the third time difference threshold and the severity data is a third severity level, a corresponding third control strategy is determined, and the third control strategy is to turn on the heating function of the liquid cooling device or turn on the heat dissipation function of the liquid cooling device; If the time difference is within the fourth time difference threshold and the severity data is a fourth severity level, a corresponding fourth control strategy is determined, and the fourth control strategy is to turn on the heating function of the liquid cooling device or turn on the heat dissipation function of the liquid cooling device; If the time difference is within the fifth time difference threshold and the severity data is a fifth severity level, a corresponding fifth control strategy is determined, and the fifth control strategy is to turn on the heating function of the liquid cooling device or turn on the heat dissipation function of the liquid cooling device; If the time difference is within the sixth time difference threshold and the severity data is a sixth severity level, a corresponding sixth control strategy is determined, and the sixth control strategy is to turn on the heating function of the liquid cooling device or turn on the heat dissipation function of the liquid cooling device.

8. A computer device, characterized in that: The computer device comprises: one or more processors; Memory; and One or more applications, wherein the one or more applications are stored in the memory and are configured to be executed by the processor to implement the control method for an energy storage system according to any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the control method for an energy storage system as described in any one of claims 1 to 7.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, the steps of the control method for an energy storage system according to any one of claims 1 to 7 are implemented.

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