Dehumidifier control method and device, energy storage system and electronic equipment

Abstract

The invention discloses a control method and device of a dehumidifier, an energy storage system and electronic equipment, and relates to the field of energy storage systems. The method comprises the steps that under the condition that an energy storage system has condensation generation conditions, a dehumidifier is controlled to be started; under the condition that the energy storage system has the condensation ending condition, the required dehumidification amount of the current dehumidification time period and the actual dehumidification amount of the dehumidifier are determined, and the current dehumidification time period is a time period formed by a second moment when the energy storage system has the condensation ending condition and a first moment when the energy storage system has the condensation generating condition; on the basis of the required dehumidification amount and the actual dehumidification amount, the continuous dehumidification duration is determined; and after the dehumidification duration is continued, the dehumidifier is controlled to be turned off. On the basis of meeting the dehumidification requirement of the energy storage system, the working time of the dehumidifier can be shortened as much as possible, the purpose of reducing the working energy consumption of the dehumidifier is achieved, and therefore the situation of resource waste can be improved.

Description

Technical Field

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

[0002] The liquid-cooled energy storage system mainly includes a battery compartment and a liquid cooling system. The battery compartment contains a battery pack. The heat generated by the battery pack during operation will cause the temperature of the battery cell to rise, affecting safety. Therefore, the battery pack can be cooled by a liquid cooling system. Liquid cooling is a common cooling method for energy storage systems. It mainly uses liquid cooling pipes to flow coolant into the liquid cooling plate of the battery pack, and relies on circulating coolant to remove the heat generated during the operation of the battery cell.

[0003] At present, the layout of liquid-cooled energy storage projects in coastal areas has been increasing. Due to the abundant precipitation and high humidity in coastal areas, and the coolant flowing in the liquid cooling pipes and liquid cooling plates, the temperature is low, so a large amount of condensation is easy to appear in the battery compartment, which leads to mold, rust and other problems in the battery compartment. In order to improve the condensation problem in the battery compartment, a dehumidifier can usually be configured for the battery compartment for dehumidification. However, the current dehumidifier has the problem of high working energy consumption when dehumidifying the battery compartment, which easily leads to waste of resources. Summary of the invention

[0004] The embodiments of the present application provide a control method, device, energy storage system and electronic device for a dehumidifier to improve the control logic of the dehumidifier, reduce the working energy consumption of the dehumidifier, and improve the situation of resource waste.

[0005] In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

[0006] In a first aspect, a control method for a dehumidifier is provided, comprising:

[0007] When the energy storage system meets the conditions for condensation to occur, controlling the dehumidifier to start;

[0008] In the case where the energy storage system meets the condensation end condition, determining the required dehumidification amount of the current dehumidification period and the actual dehumidification amount of the dehumidifier, wherein the current dehumidification period is a time period formed by the second moment when it is determined that the energy storage system meets the condensation end condition and the first moment when it is determined that the energy storage system meets the condensation generation condition;

[0009] Determining a dehumidification duration based on the required dehumidification capacity and the actual dehumidification capacity;

[0010] After the dehumidification continues for a certain period of time, the dehumidifier is controlled to be turned off.

[0011] In some embodiments, determining the duration of continued dehumidification based on the required dehumidification amount and the actual dehumidification amount includes:

[0012] If the actual dehumidification amount is greater than or equal to the required dehumidification amount, determining that the continued dehumidification time is zero;

[0013] If the actual dehumidification amount is less than the required dehumidification amount, the continued dehumidification time is determined based on the dehumidification amount difference between the required dehumidification amount and the actual dehumidification amount and the dehumidification capacity of the dehumidifier.

[0014] In some embodiments, the method for determining that the energy storage system meets the condensation generation conditions includes:

[0015] Obtaining the real-time temperature and real-time humidity of the energy storage system;

[0016] Determining a real-time dew point temperature based on the real-time temperature and the real-time humidity;

[0017] If the difference between the real-time dew point temperature and the starting condensation temperature is C 1 is greater than or equal to the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system meets the condensation generation conditions, where C 1 ≥0.

[0018] In some embodiments, the method for determining that the energy storage system meets the condensation generation conditions includes:

[0019] Obtaining the real-time temperature and real-time humidity of the energy storage system;

[0020] Determining a real-time dew point temperature based on the real-time temperature and the real-time humidity;

[0021] If the real-time dew point temperature is greater than or equal to the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system meets the condensation generation conditions.

[0022] In some embodiments, the method for determining that the energy storage system meets the condensation end condition includes:

[0023] If the difference between the real-time dew point temperature and the end condensation temperature is C 2 is less than the outlet water temperature, it is determined that the energy storage system meets the condensation end condition, where C 2 ≥0.

[0024] In some embodiments, when determining whether the energy storage system has the condensation generation conditions based on the comparison result between the real-time dew point temperature, the start condensation temperature difference C1, and the outlet water temperature of the liquid cooling unit, the start condensation temperature difference C2 is 1 , the end condensation temperature difference C 2 , satisfying: C2 ≥C 1 .

[0025] In some embodiments, the method for determining that the energy storage system meets the condensation end condition includes:

[0026] If the real-time dew point temperature is lower than the outlet water temperature, it is determined that the energy storage system meets the condensation end condition.

[0027] In some embodiments, the method for determining the required dehumidification capacity includes:

[0028] The required dehumidification amount is determined based on the environmental parameters of the energy storage system, wherein the environmental parameters include air density, air moisture content at the first moment, air moisture content at the second moment, ventilation volume of the energy storage system during the current dehumidification period, air leakage of the energy storage system during the current dehumidification period, and safety factor of the energy storage system.

[0029] In some embodiments, the method for determining the actual dehumidification amount includes:

[0030] The actual dehumidification amount is determined based on the dehumidification capacity of the dehumidifier and the current dehumidification period.

[0031] In a second aspect, a control device for a dehumidifier is provided, comprising:

[0032] A dehumidification control module, used to control the dehumidifier to start when the energy storage system meets the conditions for condensation to occur;

[0033] A dehumidification comparison module, used for determining the required dehumidification amount of the current dehumidification period and the actual dehumidification amount of the dehumidifier when the energy storage system meets the condensation end condition, wherein the current dehumidification period is a time period formed by the second moment when it is determined that the energy storage system meets the condensation end condition and the first moment when it is determined that the energy storage system meets the condensation generation condition;

[0034] A duration determination module, used to determine the duration of continued dehumidification based on the required dehumidification amount and the actual dehumidification amount;

[0035] The dehumidification control module is used to control the dehumidifier to turn off after the dehumidification continues for a certain period of time.

[0036] In a third aspect, an energy storage system is provided, comprising a host computer, a liquid cooling unit and a dehumidifier, wherein the liquid cooling unit and the dehumidifier are respectively connected to the host computer;

[0037] Wherein, the host computer or the dehumidifier is configured to control the dehumidifier by adopting the control method of the dehumidifier as described in the first aspect, or adopting the control device of the dehumidifier as described in the second aspect.

[0038] In some embodiments, the energy storage system further includes a temperature and humidity recorder, and the temperature and humidity recorder is connected to the host computer.

[0039] In a fourth aspect, an electronic device is provided, comprising a processor and a memory communicatively connected to the processor, wherein the memory stores a computer program executable by the processor, and the computer program is executed by the processor so that the processor executes a control method for a dehumidifier as described in any one of the first aspects.

[0040] A control method for a dehumidifier of the present application includes: when the energy storage system has the conditions for condensation to occur, controlling the dehumidifier to turn on; when the energy storage system has the conditions for condensation to end, determining the required dehumidification amount and the actual dehumidification amount of the dehumidifier in the current dehumidification period, the current dehumidification period being the time period formed by the second moment when it is determined that the energy storage system has the conditions for condensation to end and the first moment when it is determined that the energy storage system has the conditions for condensation to occur; determining the duration of continued dehumidification based on the required dehumidification amount and the actual dehumidification amount; after the continued dehumidification time, controlling the dehumidifier to turn off. The control method for a dehumidifier provided in the present application enables the dehumidifier to work for different dehumidification times according to actual conditions, thereby achieving differentiated use of the dehumidifier, and on the basis of meeting the dehumidification requirements of the energy storage system, reducing the working time of the dehumidifier as much as possible, thereby achieving the purpose of reducing the working energy consumption of the dehumidifier, thereby improving the situation of resource waste.

[0041] A control device for a dehumidifier in the present application enables the dehumidifier to work for different dehumidification times according to actual conditions, thereby achieving differentiated use of the dehumidifier, and on the basis of meeting the dehumidification requirements of the energy storage system, reduces the working time of the dehumidifier as much as possible, thereby achieving the purpose of reducing the working energy consumption of the dehumidifier, thereby improving the situation of resource waste.

[0042] An energy storage system of the present application can control the working time of a dehumidifier according to actual conditions. On the basis of meeting the dehumidification needs of the energy storage system, the working time of the dehumidifier can be reduced as much as possible, thereby reducing the working energy consumption of the dehumidifier and saving resources.

[0043] An electronic device of the present application can control the working time of a dehumidifier according to actual conditions. On the basis of meeting the dehumidification requirements of an energy storage system, the working time of the dehumidifier can be reduced as much as possible, thereby reducing the working energy consumption of the dehumidifier and saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] 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.

[0045] Figure 1 A schematic diagram of the structure of an energy storage system provided in an embodiment of the present application;

[0046] Figure 2 Another structural schematic diagram of the energy storage system provided in the embodiment of the present application;

[0047] Figure 3 This is a schematic diagram of the overall process of the control method of the dehumidifier according to an embodiment of the present application;

[0048] Figure 4 This is a schematic diagram of an example flow chart of a control method for a dehumidifier according to an embodiment of the present application;

[0049] Figure 5 A schematic diagram of the structure of a control device for a dehumidifier according to an embodiment of the present application;

[0050] Reference numerals:

[0051] 10-energy storage system; 11-host computer; 12-liquid cooling unit; 13-dehumidifier; 14-temperature and humidity recorder; 20-dehumidifier control device; 21-dehumidification control module; 22-dehumidification comparison module; 23-duration determination module. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than 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.

[0053] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0054] See also Figure 1 , Figure 1 A structural schematic diagram of an energy storage system provided in an embodiment of the present application. The energy storage system 10 may include a host computer 11, a liquid cooling unit 12 and a dehumidifier 13, and the liquid cooling unit 12 and the dehumidifier 13 are respectively connected to the host computer 11, and specifically can be a communication connection. Among them, the liquid cooling unit 12 is used to input the coolant into the liquid cooling plate of the battery pack through the liquid cooling pipeline, and relies on the circulating coolant to take away the heat generated during the operation of the battery cell to cool the battery pack, and the dehumidifier 13 is used to dehumidify the energy storage system 10. The host computer 11 or the dehumidifier 13 is configured to control the dehumidifier 13 to perform a dehumidification operation using the control method of the dehumidifier provided in the embodiment of the present application, or the host computer 11 or the dehumidifier 13 can also use the control device 20 of the dehumidifier in the embodiment of the present application to control the dehumidifier 13 to perform a dehumidification operation. That is to say, the control method of the dehumidifier in the embodiment of the present application can be executed by the host computer 11, or it can be executed by the dehumidifier 13.

[0055] If the control method of the dehumidifier of the embodiment of the present application is executed by the host computer 11, the liquid cooling unit 12 is also used to upload the outlet water temperature to the host computer 11, and the dehumidifier 13 is equipped with a temperature and humidity probe, which is used to collect the real-time temperature and real-time humidity of the current environment through the temperature and humidity probe, and upload the real-time temperature and real-time humidity to the host computer 11. The host computer 11 is used to execute the control method of the dehumidifier of the embodiment of the present application according to the real-time temperature, real-time humidity and outlet water temperature.

[0056] If the control method of the dehumidifier of the embodiment of the present application is executed by the dehumidifier 13, the liquid cooling unit 12 is also used to upload the outlet water temperature to the host computer 11, and the host computer 11 is used to transmit the outlet water temperature to the dehumidifier 13. The dehumidifier 13 is used to collect the real-time temperature and real-time humidity of the current environment, and execute the control method of the dehumidifier of the embodiment of the present application according to the real-time temperature, real-time humidity and outlet water temperature.

[0057] See also Figure 2 , Figure 2 Another structural diagram of the energy storage system provided in the embodiment of the present application. The energy storage system 10 may also include a temperature and humidity recorder 14, which is connected to the host computer 11 and is used to collect the real-time temperature and real-time humidity of the current environment and upload the real-time temperature and real-time humidity to the host computer 11.

[0058] In some examples, the energy storage system 10 may be an energy storage container, or a battery compartment provided in the energy storage container, or may be in other forms, which are not specifically limited in the embodiments of the present application.

[0059] Taking the energy storage system as a battery compartment as an example, as the layout of energy storage systems in coastal areas is increasing, coastal areas have abundant precipitation and high humidity, and there is coolant flowing in the liquid cooling pipes and liquid cooling plates, and the temperature is low, so a large amount of condensation is easy to appear in the battery compartment, resulting in mold, rust and other problems in the battery compartment. In order to improve the condensation problem in the battery compartment, a dehumidifier 13 can usually be configured for the battery compartment for dehumidification. The main control logic of the current dehumidifier 13 is to control the action of the dehumidifier 13 according to the set humidity upper limit value and the set humidity lower limit value, that is, when the detection value of the humidity probe is greater than the set humidity upper limit value, the dehumidification is started; when the detection value of the humidity probe is less than the set humidity lower limit value, the dehumidification is turned off.

[0060] However, at different ambient temperatures, the same humidity value indicates different air humidity levels. For example, at a temperature of 30°C and a humidity of 60%, the water content in the air is 16.04 g / kg, corresponding to a dew point temperature of 21.4°C; and at a temperature of 40°C and a humidity of 60%, the water content in the air is 28.42 g / kg, corresponding to a dew point temperature of 30.7°C. In addition, due to the different configurations of different liquid cooling projects, the cold water temperature in the liquid cooling pipeline is also different, and the condensation conditions at different sites are also different. The dehumidifier 13 uses the logic of setting the upper humidity limit and the lower humidity limit, and cannot identify whether the site has the conditions for condensation. For example, when the liquid cooling unit 12 is not cooling, the battery compartment does not have the conditions for condensation, and the dehumidifier 13 has been turned on for dehumidification, resulting in increased power consumption and high working energy consumption, which easily leads to waste of resources.

[0061] In view of this, an embodiment of the present application provides a control method for a dehumidifier, which starts dehumidification when the energy storage system meets the conditions for condensation to occur, and when the energy storage system meets the conditions for condensation to end, determines the continued dehumidification time of the dehumidifier by comparing the theoretically required dehumidification amount in the time period from the start of condensation to the end of condensation with the actual dehumidification amount of the dehumidifier in the time period, so that the dehumidifier can work for different dehumidification times according to actual conditions to achieve differentiated use, and on the basis of meeting the dehumidification needs of the energy storage system, reduces the working time of the dehumidifier as much as possible to achieve the purpose of reducing the working energy consumption of the dehumidifier, thereby solving at least part of the above-mentioned technical problems.

[0062] See also Figure 3 , Figure 3 This is a schematic diagram of the overall flow of the control method of the dehumidifier in the embodiment of the present application. The control method of the dehumidifier includes the following steps:

[0063] Step 301: When the energy storage system meets the conditions for condensation to occur, control the dehumidifier to start.

[0064] In some embodiments, the method for determining whether the energy storage system has condensation generation conditions includes:

[0065] Step 1: Obtain the real-time temperature and real-time humidity of the energy storage system.

[0066] Specifically, the real-time temperature and real-time humidity of the energy storage system can be monitored through the temperature and humidity probe configured on the dehumidifier, or through an external temperature and humidity recorder.

[0067] Step 2: Determine the real-time dew point temperature based on the real-time temperature and real-time humidity.

[0068] Specifically, the host computer or the dehumidifier may calculate the value of the real-time dew point temperature according to the real-time temperature and the real-time humidity according to an empirical formula.

[0069] Step 3: If the real-time dew point temperature is greater than or equal to the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system has the conditions for condensation. If the real-time dew point temperature is less than the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system does not have the conditions for condensation. At this time, the energy storage system does not need dehumidification, and the dehumidifier is controlled not to be turned on and is in the off state.

[0070] Through the above scheme, the real-time dew point temperature is calculated from the temperature and humidity data in the energy storage system, and the real-time dew point temperature is compared with the outlet water temperature of the liquid cooling unit to determine whether the energy storage system has the conditions for condensation. The dehumidification control logic is simple and easy, and there is no need to distinguish whether the energy storage system is in a charging or discharging state or a static state. When it is identified that the energy storage system has the conditions for condensation, the dehumidifier will start dehumidification regardless of the state of the energy storage system. In addition, the temperature and humidity conditions at different project sites are different, and the corresponding dew point temperatures are also different. Through the dehumidifier control logic, differentiated use of dehumidification can be achieved, which can greatly improve the flexibility of dehumidification.

[0071] In other embodiments, the method for determining whether the energy storage system has the conditions for condensation to occur includes:

[0072] Step 1: Obtain the real-time temperature and real-time humidity of the energy storage system.

[0073] Step 2: Determine the real-time dew point temperature based on the real-time temperature and real-time humidity.

[0074] Step 3: If the difference between the real-time dew point temperature and the starting condensation temperature is C 1 If the sum of is greater than or equal to the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system has the conditions for condensation to occur, where C 1 ≥0. If the difference between the real-time dew point temperature and the starting condensation temperature is C 1 If the sum of is less than the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system does not have the conditions for condensation to occur. At this time, the energy storage system does not need dehumidification, and the dehumidifier is controlled not to be turned on and is in the off state.

[0075] For example, assuming that the real-time dew point temperature is 19°C, the condensation temperature difference C 1 The temperature of the outlet water of the liquid cooling unit is 19.5℃, and the real-time dew point temperature is 19℃ < the outlet water temperature of the liquid cooling unit is 19.5℃. At this time, the system does not have the conditions for condensation, and the dew point temperature is 19℃ + the starting condensation temperature difference C 1 (1℃)>The outlet water temperature of the liquid cooling unit is 19.5℃, which meets the dehumidifier start-up conditions and the system starts dehumidification.

[0076] Through the above scheme, the start condensation temperature difference C is introduced when comparing the real-time dew point temperature with the outlet water temperature of the liquid cooling unit. 1 , before condensation occurs in the energy storage system, the dehumidifier can enter the dehumidification state and start dehumidification in advance, thereby further reducing the risk of condensation.

[0077] Step 302: When the energy storage system meets the conditions for the end of condensation, determine the required dehumidification capacity and the actual dehumidification capacity of the dehumidifier during the current dehumidification period. The current dehumidification period is a time period formed by the second moment when it is determined that the energy storage system meets the conditions for the end of condensation and the first moment when it is determined that the energy storage system meets the conditions for the generation of condensation.

[0078] In some embodiments, the method for determining that the energy storage system meets the condensation end condition includes:

[0079] If the real-time dew point temperature is lower than the outlet water temperature, it is determined that the energy storage system has met the condensation end conditions.

[0080] Specifically, after the dehumidification is turned on, as the dehumidifier is turned on, the humidity in the energy storage system gradually decreases, and the real-time dew point temperature also decreases. For example, at 30°C and 80% humidity, the real-time dew point temperature is 26.2°C, and at 30°C and 60% humidity, the real-time dew point temperature is 21.4°C. When the real-time dew point temperature is lower than the outlet water temperature, it is determined that the energy storage system has the condensation end condition.

[0081] Through the above scheme, the real-time dew point temperature is compared with the outlet water temperature of the liquid cooling unit to determine whether the energy storage system has the conditions for the end of condensation. The dehumidification control logic is simple and easy. In addition, the dehumidifier control logic can realize the differentiated use of dehumidification, which can greatly improve the flexibility of dehumidification.

[0082] In other embodiments, the method for determining that the energy storage system meets the condensation end condition includes:

[0083] If the difference between the real-time dew point temperature and the end condensation temperature is C 2 If the sum of is less than the outlet water temperature, it is determined that the energy storage system has the condensation end condition, where C 2 ≥0.

[0084] Through the above scheme, when comparing the real-time dew point temperature with the outlet water temperature of the liquid cooling unit, the end condensation temperature difference C is introduced. 2 , so that condensation can be removed as much as possible and the dehumidification needs of the energy storage system can be better met.

[0085] In some examples, when determining whether the energy storage system has the condensation generation conditions based on the comparison result between the real-time dew point temperature, the start condensation temperature difference C1, and the outlet water temperature of the liquid cooling unit, the start condensation temperature difference C 1 , End condensation temperature difference C 2 , satisfying: C 2 ≥C 1 In this way, dehumidification can be started in advance before condensation occurs, and condensation can be removed as much as possible, thereby better ensuring the dehumidification effect in different temperature and humidity environments.

[0086] It is understandable that the outlet water temperature of the liquid cooling unit can be changed in real time.

[0087] It can also be understood that the method for determining whether the energy storage system has the conditions for condensation generation and the method for determining whether the energy storage system has the conditions for condensation termination in the embodiment of the present application can be freely combined. For example, the real-time dew point temperature can be compared with the outlet water temperature to determine whether the energy storage system has the conditions for condensation generation, and the sum of the real-time dew point temperature and the end condensation temperature difference can be compared with the outlet water temperature to determine whether the energy storage system has the conditions for condensation termination; or the sum of the real-time dew point temperature and the start condensation temperature difference can be compared with the outlet water temperature to determine whether the energy storage system has the conditions for condensation generation, and the real-time dew point temperature can be compared with the outlet water temperature to determine whether the energy storage system has the conditions for condensation generation, and the real-time dew point temperature can be compared with the outlet water temperature to determine whether the energy storage system has the conditions for condensation termination. The real-time dew point temperature and the outlet water temperature may be compared to determine whether the energy storage system has the conditions for the end of condensation; or the real-time dew point temperature and the sum of the start condensation temperature difference may be compared with the outlet water temperature to determine whether the energy storage system has the conditions for the generation of condensation, and the real-time dew point temperature and the sum of the end condensation temperature difference may be compared with the outlet water temperature to determine whether the energy storage system has the conditions for the end of condensation; or the real-time dew point temperature may be compared with the outlet water temperature to determine whether the energy storage system has the conditions for the generation of condensation, and the real-time dew point temperature may be compared with the outlet water temperature to determine whether the energy storage system has the conditions for the end of condensation. The embodiments of the present application do not make specific limitations on this.

[0088] In some embodiments, the required dehumidification amount during the current dehumidification period is determined by the following method:

[0089] The required dehumidification amount is determined based on the environmental parameters of the energy storage system. The environmental parameters include air density, air moisture content at the first moment, air moisture content at the second moment, ventilation volume of the energy storage system in the current dehumidification period, air leakage of the energy storage system in the current dehumidification period, and safety factor of the energy storage system.

[0090] Specifically, the required dehumidification amount W during the current dehumidification period is 1 It can be determined by the following formula:

[0091] W 1 =ρ×((d 1 -d 2 ) / 1000)×(m×V+ξ)×n×(t 2 -t 1 ) / 60;

[0092] In the formula, W 1 is the required dehumidification capacity, in kg; ρ is the air density, which is 1.15 kg / m 3 ;d 1 t 1 The moisture content of the air in the energy storage system at the moment, in g / kg dry air; d 2 t 2The moisture content of the air in the energy storage system at the moment, in g / kg dry air; m is the number of ventilation times between the energy storage system and the external environment per hour, in times / h, and is usually taken as 1; V is the net space volume in the energy storage system (the volume after removing solids), in m 3 ; m×V is the ventilation volume of the energy storage system, in m 3 / h; ξ is the leakage of the energy storage system, unit is m 3 / h; n is the safety factor, ranging from 1.1 to 1.5; t 1 The time is the first time to determine that the energy storage system has the conditions for condensation to occur, t 2 The time is the second time when it is determined that the energy storage system has the condensation end condition.

[0093] Among them, t 1 Moisture content of air in the energy storage system at the moment d 1 and t 2 Moisture content of air in the energy storage system at the moment d 2 It can be determined by the following formula:

[0094]

[0095] Where d is t 1 Moisture content of air in the energy storage system at the moment d 1 (or t 2 Moisture content of air in the energy storage system at the moment d 2 ), H is t 1 The humidity in the energy storage system at the moment (or t 2 Humidity in the energy storage system at the moment), P sb is the saturated water vapor pressure, in Pa, and T is t 1 The temperature in the energy storage system at the moment (or t 2 The temperature in the energy storage system at that moment).

[0096] In some embodiments, the actual dehumidification capacity of the dehumidifier is determined by the following method:

[0097] Based on the dehumidification capacity of the dehumidifier and the current dehumidification period, the actual dehumidification amount is determined.

[0098] Specifically, the actual dehumidification capacity of the dehumidifier W 2 It can be determined by the following formula:

[0099] W 2 =A×(t 2 -t 1 ) / 60;

[0100] In the formula, W 2 is the actual dehumidification capacity in kg; A is the dehumidification capacity of the dehumidifier in kg / h; t 1The time is the first time to determine that the energy storage system has the conditions for condensation to occur, t 2 The second moment is the moment when the energy storage system is determined to have the condensation end condition, t 2 -t 1 It is the current dehumidification period.

[0101] Step 303: Determine the duration of dehumidification based on the required dehumidification capacity and the actual dehumidification capacity.

[0102] In some embodiments, if the actual dehumidification amount is greater than or equal to the required dehumidification amount, the continued dehumidification time is determined to be zero; if the actual dehumidification amount is less than the required dehumidification amount, the continued dehumidification time is determined based on the dehumidification amount difference between the required dehumidification amount and the actual dehumidification amount and the dehumidification capacity of the dehumidifier.

[0103] Specifically, from the first moment t 1 At the second time t 2 , if the actual dehumidification capacity W 2 Greater than or equal to the required dehumidification capacity W 1 , the dehumidifier is controlled to stop working. From the first moment t 1 At the second time t 2 , if the actual dehumidification capacity W 2 Less than the required dehumidification capacity W 1 , then the dehumidifier needs to continue dehumidifying for t hours before stopping. The dehumidification time t can be determined by the following formula:

[0104] t=(W 1 -A×(t 2 -t 1 ) / 60) / A;

[0105] In the formula, W 1 is the required dehumidification capacity, in kg; A is the dehumidification capacity of the dehumidifier, in kg / h; t 1 The time is the first time to determine that the energy storage system has the conditions for condensation to occur, t 2 The second moment is the moment when the energy storage system is determined to have the condensation end condition, t 2 -t 1 It is the current dehumidification period.

[0106] Step 304: After the dehumidification time has passed, the dehumidifier is controlled to shut down.

[0107] Specifically, if the dehumidification duration is zero, the dehumidifier is immediately controlled to be turned off; if the dehumidification duration is greater than zero, the dehumidifier is controlled to continue dehumidifying for t hours and then be turned off.

[0108] To more clearly illustrate the embodiments of this application, please refer to Figure 4 , Figure 4This is a schematic diagram of an example flow chart of a control method for a dehumidifier according to an embodiment of the present application. Exemplarily, the control method for a dehumidifier may include the following steps:

[0109] Collect the real-time temperature T, real-time humidity H of the energy storage system and the outlet water temperature T of the liquid cooling unit b ; Calculate the first moment t 1 Real-time dew point temperature T a1 , if the real-time dew point temperature T a1 The temperature difference from the start of condensation C 1 The sum of is greater than or equal to the current outlet water temperature T b1 , then the dehumidification is controlled to start; if the real-time dew point temperature T a1 The temperature difference from the start of condensation C 1 The sum of is less than the current outlet water temperature T b1 , then the dehumidifier is controlled not to start; calculate the second moment t 2 Real-time dew point temperature T a2 , if the real-time dew point temperature T a2 Temperature difference between the end of condensation and 2 The sum of is greater than or equal to the current outlet water temperature T b2 , then continue to control the dehumidification to start; if the real-time dew point temperature T a2 Temperature difference between the end of condensation and 2 The sum of is less than the current outlet water temperature T b2 , then determine the required dehumidification capacity W 1 Is it greater than the actual dehumidification capacity W? 2 , if the required dehumidification capacity W 1 Greater than the actual dehumidification capacity W 2 , then the dehumidifier is controlled to continue dehumidifying for t time and then stop working; if the required dehumidification capacity W 1 Less than or equal to the actual dehumidification capacity W 2 , then the dehumidifier is controlled to stop working.

[0110] It is understandable that the ambient temperature and humidity at different customer sites are different, and their dew point temperatures are also different. Through the control logic of the dehumidifier, it can be determined that the site has the conditions for condensation to occur, and the dehumidifier can be started in time; when the system does not have the conditions for condensation to occur, it is determined whether the dehumidifier has completely removed the condensation. If not, the dehumidifier continues to work for a period of time before stopping. In this way, the working time of the dehumidifier can be reduced as much as possible while satisfying the internal dehumidification of the energy storage system, and the power consumption of the dehumidifier can be reduced. In addition, the dehumidification control logic can improve the flexibility of dehumidification. The temperature and humidity conditions at different project sites are different, and the corresponding dew point temperatures and air moisture content are also different. Through the dehumidifier control logic, different dehumidification times of the dehumidifier can be achieved, so as to achieve differentiated use of the dehumidifier. The dehumidification control logic is universal and can be used by both semiconductor dehumidifiers and compression refrigeration dehumidifiers. The dehumidification control logic is highly maintainable, has a clear structure, is easy to understand and implement, has low professional requirements for developers, does not require them to have knowledge related to refrigeration systems, and is easy to operate.

[0111] Accordingly, see Figure 5 , Figure 5 The structure diagram of the control device of the dehumidifier according to the embodiment of the present application is as follows: The control device 20 of the dehumidifier provided in the embodiment of the present application comprises a dehumidification control module 21 , a dehumidification comparison module 22 and a duration determination module 23 .

[0112] The dehumidification control module 21 is used to control the dehumidifier to start when the energy storage system meets the conditions for condensation to occur.

[0113] The dehumidification comparison module 22 is used to determine the required dehumidification amount and the actual dehumidification amount of the dehumidifier during the current dehumidification period when the energy storage system meets the conditions for the end of condensation. The current dehumidification period is the time period formed by the second moment when it is determined that the energy storage system meets the conditions for the end of condensation and the first moment when it is determined that the energy storage system meets the conditions for the generation of condensation.

[0114] The duration determination module 23 is used to determine the duration of continued dehumidification based on the required dehumidification amount and the actual dehumidification amount.

[0115] The dehumidification control module 21 is also used to control the dehumidifier to shut down after the dehumidification continues for a certain period of time.

[0116] In some embodiments, the duration determination module 23 is specifically used to:

[0117] If the actual dehumidification capacity is greater than or equal to the required dehumidification capacity, the continued dehumidification time is determined to be zero.

[0118] If the actual dehumidification amount is less than the required dehumidification amount, the dehumidification duration is determined based on the dehumidification amount difference between the required dehumidification amount and the actual dehumidification amount and the dehumidification capacity of the dehumidifier.

[0119] In some embodiments, the dehumidification control module 21 is used to determine whether the energy storage system has condensation generation conditions by the following method:

[0120] Get the real-time temperature and humidity of the energy storage system.

[0121] Based on the real-time temperature and the real-time humidity, the real-time dew point temperature is determined.

[0122] If the difference between the real-time dew point temperature and the starting condensation temperature is C 1 If the sum of is greater than or equal to the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system has the conditions for condensation to occur, where C 1 ≥0.

[0123] In some embodiments, the dehumidification control module 21 is used to determine whether the energy storage system has condensation generation conditions by the following method:

[0124] Get the real-time temperature and humidity of the energy storage system.

[0125] Based on the real-time temperature and the real-time humidity, the real-time dew point temperature is determined.

[0126] If the real-time dew point temperature is greater than or equal to the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system has the conditions for condensation to occur.

[0127] In some embodiments, the dehumidification comparison module 22 is used to determine whether the energy storage system has the condensation end condition by the following method:

[0128] If the difference between the real-time dew point temperature and the end condensation temperature is C 2 If the sum of is less than the outlet water temperature, it is determined that the energy storage system has the condensation end condition, where C 2 ≥0.

[0129] In some embodiments, when determining whether the energy storage system has the condensation generation conditions based on the comparison result between the real-time dew point temperature, the start condensation temperature difference C1, and the outlet water temperature of the liquid cooling unit, the start condensation temperature difference C 1 , End condensation temperature difference C 2 , satisfying: C 2 ≥C 1 .

[0130] In some embodiments, the dehumidification comparison module 22 is used to determine whether the energy storage system has the condensation end condition by the following method:

[0131] If the real-time dew point temperature is lower than the outlet water temperature, it is determined that the energy storage system has met the condensation end conditions.

[0132] In some embodiments, the dehumidification comparison module 22 is used to determine the required dehumidification amount by the following method:

[0133] The required dehumidification amount is determined based on the environmental parameters of the energy storage system. The environmental parameters include air density, air moisture content at the first moment, air moisture content at the second moment, ventilation volume of the energy storage system in the current dehumidification period, air leakage of the energy storage system in the current dehumidification period, and safety factor of the energy storage system.

[0134] In some embodiments, the dehumidification comparison module 22 is used to determine the actual dehumidification amount by the following method:

[0135] Based on the dehumidification capacity of the dehumidifier and the current dehumidification period, the actual dehumidification amount is determined.

[0136] It can be understood that the control device of the dehumidifier in the embodiment of the present application enables the dehumidifier to work for different dehumidification times according to actual conditions, thereby achieving differentiated use of the dehumidifier, and on the basis of meeting the dehumidification requirements of the energy storage system, reducing the working time of the dehumidifier as much as possible, thereby achieving the purpose of reducing the working energy consumption of the dehumidifier, thereby improving the situation of resource waste.

[0137] Accordingly, the energy storage system provided in the embodiment of the present application can control the working time of the dehumidifier according to actual conditions. On the basis of meeting the dehumidification requirements of the energy storage system, the working time of the dehumidifier can be reduced as much as possible, thereby reducing the working energy consumption of the dehumidifier and saving resources.

[0138] Accordingly, an embodiment of the present application further provides an electronic device. The electronic device includes a processor and a memory in communication with the processor, wherein the memory stores a computer program executable by the processor, and the computer program is executed by the processor so that the processor can execute the control method of the dehumidifier of the embodiment of the present application.

[0139] Accordingly, the embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the control method of the dehumidifier of the embodiment of the present application when executed by a processor.

[0140] The above is a detailed introduction to the control method, device, energy storage system and electronic device of a dehumidifier provided in the embodiments of the present application. 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 technical solution and its core idea of ​​the present application. Ordinary technical personnel in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A dehumidifier control method, characterized in that: include: When the energy storage system meets the conditions for condensation to occur, controlling the dehumidifier to start; In the case where the energy storage system meets the condensation end condition, determining the required dehumidification amount of the current dehumidification period and the actual dehumidification amount of the dehumidifier, wherein the current dehumidification period is a time period formed by the second moment when it is determined that the energy storage system meets the condensation end condition and the first moment when it is determined that the energy storage system meets the condensation generation condition; Determining a dehumidification duration based on the required dehumidification capacity and the actual dehumidification capacity; After the dehumidification continues for a certain period of time, the dehumidifier is controlled to be turned off.

2. The dehumidifier control method according to claim 1, characterized in that: Determining a dehumidification duration based on the required dehumidification capacity and the actual dehumidification capacity includes: If the actual dehumidification amount is greater than or equal to the required dehumidification amount, determining that the continued dehumidification time is zero; If the actual dehumidification amount is less than the required dehumidification amount, the continued dehumidification time is determined based on the dehumidification amount difference between the required dehumidification amount and the actual dehumidification amount and the dehumidification capacity of the dehumidifier.

3. The dehumidifier control method according to claim 1, characterized in that: The method for determining that the energy storage system meets the condensation generation conditions includes: Obtaining the real-time temperature and real-time humidity of the energy storage system; Determining a real-time dew point temperature based on the real-time temperature and the real-time humidity; If the sum of the real-time dew point temperature and the starting condensation temperature difference C1 is greater than or equal to the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system meets the condensation generation conditions, wherein C1≥0.

4. The dehumidifier control method according to claim 1, characterized in that: The method for determining that the energy storage system meets the condensation generation conditions includes: Obtaining the real-time temperature and real-time humidity of the energy storage system; Determining a real-time dew point temperature based on the real-time temperature and the real-time humidity; If the real-time dew point temperature is greater than or equal to the outlet water temperature of the liquid cooling unit, it is determined that the energy storage system meets the condensation generation conditions.

5. The dehumidifier control method according to any one of claims 1 to 4, characterized in that: The method for determining that the energy storage system meets the condensation end condition includes: If the sum of the real-time dew point temperature and the end condensation temperature difference C2 is less than the outlet water temperature, it is determined that the energy storage system meets the condensation end condition, wherein C2≥0.

6. The control method of the dehumidifier according to claim 5, characterized in that: When determining whether the energy storage system has the condensation generation conditions based on the comparison result among the real-time dew point temperature, the starting condensation temperature difference C1, and the outlet water temperature of the liquid cooling unit, the starting condensation temperature difference C1 and the ending condensation temperature difference C2 satisfy: C2≥C1.

7. The dehumidifier control method according to any one of claims 1 to 4, characterized in that: The method for determining that the energy storage system meets the condensation end condition includes: If the real-time dew point temperature is lower than the outlet water temperature, it is determined that the energy storage system meets the condensation end condition.

8. The control method of a dehumidifier according to claim 1, characterized in that: The method for determining the required dehumidification capacity includes: The required dehumidification amount is determined based on the environmental parameters of the energy storage system, wherein the environmental parameters include air density, air moisture content at the first moment, air moisture content at the second moment, ventilation volume of the energy storage system during the current dehumidification period, air leakage of the energy storage system during the current dehumidification period, and safety factor of the energy storage system.

9. The dehumidifier control method according to claim 1, characterized in that: The method for determining the actual dehumidification capacity includes: The actual dehumidification amount is determined based on the dehumidification capacity of the dehumidifier and the current dehumidification period.

10. A control device for a dehumidifier, characterized in that: include: A dehumidification control module, used to control the dehumidifier to start when the energy storage system meets the conditions for condensation to occur; A dehumidification comparison module, used for determining the required dehumidification amount of the current dehumidification period and the actual dehumidification amount of the dehumidifier when the energy storage system meets the condensation end condition, wherein the current dehumidification period is a time period formed by the second moment when it is determined that the energy storage system meets the condensation end condition and the first moment when it is determined that the energy storage system meets the condensation generation condition; A duration determination module, used to determine the duration of continued dehumidification based on the required dehumidification amount and the actual dehumidification amount; The dehumidification control module is further used to control the dehumidifier to shut down after the dehumidification continues for a certain period of time.

11. An energy storage system, characterized in that: It includes a host computer, a liquid cooling unit and a dehumidifier, wherein the liquid cooling unit and the dehumidifier are respectively connected to the host computer; Wherein, the host computer or the dehumidifier is configured to control the dehumidifier using the control method of the dehumidifier described in any one of claims 1 to 9, or to use the control device of the dehumidifier described in claim 10.

12. The energy storage system according to claim 11, characterized in that: The energy storage system also includes a temperature and humidity recorder, which is connected to the host computer.

13. An electronic device, characterized in that: It comprises a processor and a memory communicatively connected to the processor, wherein the memory stores a computer program executable by the processor, and the computer program is executed by the processor so that the processor executes the control method of the dehumidifier as described in any one of claims 1-9.

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