Chilled water supply temperature determination method and device and electronic equipment

Abstract

The invention provides a chilled water supply temperature determination method and device and electronic equipment, and one specific implementation mode of the method comprises the steps that a first water supply temperature upper limit is determined from multiple first candidate water supply temperatures according to front surface cooling and rear air outlet dew points corresponding to the multiple first candidate water supply temperatures of chilled water; a second water supply temperature upper limit is determined from multiple second candidate water supply temperatures according to dehumidifier air supply temperatures corresponding to the multiple second candidate water supply temperatures of chilled water; the smaller one of the first water supply temperature upper limit and the second water supply temperature upper limit is determined as a target water supply temperature upper limit of chilled water; and between the target water supply temperature upper limit and the water supply temperature lower limit, the water supply temperature meeting the refrigeration-dehumidification energy consumption requirement is determined as the target water supply temperature of the chilled water. Then, the target water supply temperature obtained through the method can meet the freezing-dehumidification energy consumption requirement of a battery production workshop.

Description

Technical Field

[0001] The present application relates to the field of temperature control, and in particular to a method, device and electronic equipment for determining the supply temperature of chilled water. Background Art

[0002] In the manufacturing process of products, appropriate air quality is important for ensuring product quality, improving production efficiency and protecting employee health. For example, in the production process of batteries, air with appropriate temperature and humidity is required to produce qualified products.

[0003] In some application scenarios, the temperature of the battery production workshop can be adjusted by the chilled water system, and the humidity of the battery production workshop can be adjusted by the steam system. Therefore, it is often necessary to coordinate the control of the chilled water system and the steam system to obtain appropriate air quality.

[0004] However, the chilled water system and the steam system are independent, so the control processes of the two are also independent. Therefore, in order to achieve coordinated control of the chilled water system and the steam system, the common factors that affect the two can be determined to achieve the purpose of coordinated control by using the common factors.

[0005] Furthermore, the common factor may be the chilled water supply temperature. That is, the chilled water supply temperature may affect the control process of the chilled water system and the control process of the steam system. Therefore, it is important to determine the appropriate chilled water supply temperature. Whether the chilled water supply temperature is appropriate, in addition to meeting the requirements for producing qualified products, often depends on whether the chilled water at this temperature can meet the energy consumption requirements.

[0006] In the related art, the temperature of the chilled water is often manually controlled by an operator, so it is difficult to obtain a chilled water temperature that meets energy consumption requirements. Summary of the invention

[0007] The purpose of the embodiments of the present application is to provide a method, device and electronic device for determining the supply temperature of chilled water, so as to obtain a target supply temperature that meets the refrigeration-dehumidification energy consumption requirements of a battery production workshop.

[0008] In the first aspect, the embodiment of the present application provides a method for determining the supply temperature of chilled water, comprising: determining a first supply temperature upper limit from a plurality of first candidate supply temperatures of chilled water according to the front surface cooling and rear outlet air dew points corresponding to each of the plurality of first candidate supply temperatures of chilled water; determining a second supply temperature upper limit from a plurality of second candidate supply temperatures according to the dehumidifier supply air temperatures corresponding to each of the plurality of second candidate supply temperatures of chilled water; determining the smaller of the first supply temperature upper limit and the second supply temperature upper limit as the target supply temperature upper limit of chilled water; and determining the supply temperature that meets the freezing-dehumidification energy consumption requirements between the target supply temperature upper limit and the supply temperature lower limit as the target supply temperature of chilled water. In this way, by first determining the target supply temperature upper limit that meets both the control requirements of the chilled water system and the control requirements of the steam system, then between the target supply temperature upper limit and the supply temperature lower limit, a target supply temperature that can meet both the cooling energy consumption requirements of the chilled water system and the dehumidification energy consumption requirements of the steam system and can make the air quality meet the requirements of battery production can be determined.

[0009] Optionally, the method of determining the upper limit of the first water supply temperature from the plurality of first candidate water supply temperatures according to the respective corresponding front surface cooling and rear air outlet dew points of the plurality of first candidate water supply temperatures of chilled water includes: for any first candidate water supply temperature among the plurality of first candidate water supply temperatures, determining the corresponding front surface cooling and rear air outlet dew point of the first candidate water supply temperature according to the first candidate water supply temperature and the outdoor dew point; determining the first candidate water supply temperature corresponding to the front surface cooling and rear air outlet dew point that is less than the dew point threshold as the first upper limit of the water supply temperature. In this way, a more suitable front surface cooling and rear air outlet dew point can be determined in combination with the outdoor dew point, thereby determining a more accurate upper limit of the first water supply temperature, so as to improve the dehumidification effect on the basis of meeting the product production requirements.

[0010] Optionally, the method of determining the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature and the outdoor dew point includes: when the first candidate water supply temperature is greater than a preset front surface cooling rear air outlet dew point threshold, determining the outdoor dew point as the front surface cooling rear air outlet dew point; when the first candidate water supply temperature is less than the preset front surface cooling rear air outlet dew point, determining the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point and a first auxiliary parameter; the first auxiliary parameter includes one or two of the front surface cooling valve opening and the air supply fan frequency. In this way, the corresponding front surface cooling rear air outlet dew point can be adaptively determined according to the comparison between the first candidate water supply temperature and the preset front surface cooling rear air outlet dew point threshold, thereby improving the accuracy of the front surface cooling rear air outlet dew point while meeting the product production requirements.

[0011] Optionally, when the first candidate water supply temperature is less than the preset front surface cooling air outlet dew point, before determining the front surface cooling air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter, the method further includes: taking the first candidate sample water supply temperature, the sample outdoor dew point and the first sample auxiliary parameter as input, and taking the corresponding sample front surface cooling air outlet dew point as the expected output, to train a front surface cooling air outlet dew point prediction model; in this way, when the first candidate water supply temperature is less than the preset front surface cooling air outlet dew point, determining the front surface cooling air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter includes: using the front surface cooling air outlet dew point prediction model, when the first candidate water supply temperature is less than the preset front surface cooling air outlet dew point, determining the front surface cooling air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter. In this way, the front surface cooling and rear air outlet dew point prediction model can be trained through relevant sample data, so that the trained front surface cooling and rear air outlet dew point prediction model can be applied to actual scenarios to obtain a more accurate front surface cooling and rear air outlet dew point, which also improves the accuracy of the target water supply temperature to a certain extent.

[0012] Optionally, the second water supply temperature upper limit is determined from the multiple second candidate water supply temperatures according to the dehumidifier supply air temperatures corresponding to each of the multiple second candidate water supply temperatures, including: for any second candidate water supply temperature among the multiple second candidate water supply temperatures, according to the second candidate water supply temperature and the opening of the rear cooling valve, determining the dehumidifier supply air temperature corresponding to the second candidate water supply temperature; determining the second candidate water supply temperature corresponding to the supply air temperature less than the dehumidifier supply air temperature threshold as the second water supply temperature upper limit. In this way, a more suitable dehumidifier supply air temperature can be determined in combination with the opening of the rear cooling valve, thereby determining a more accurate second water supply temperature upper limit, so as to improve the dehumidification effect on the basis of meeting the product production requirements.

[0013] Optionally, the step of determining the dehumidifier supply air temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature and the opening of the rear cooling valve includes: determining the supply air temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature, the opening of the rear cooling valve and a second auxiliary parameter; the second auxiliary parameter includes one or more of the workshop temperature, the outdoor ambient temperature and the indoor dew point. In this way, the dehumidifier supply air temperature can be determined jointly based on the consideration of the second candidate water supply temperature and the opening of the rear cooling valve, and then considering one, two or three of the workshop temperature, the outdoor ambient temperature and the indoor dew point, so as to improve the accuracy of the dehumidifier supply air temperature.

[0014] Optionally, before determining the corresponding supply air temperature under the second candidate water supply temperature according to the second candidate water supply temperature, the opening of the rear cooling valve and the second auxiliary parameter, the method further includes: taking the second candidate sample water supply temperature, the sample rear cooling valve opening and the second sample auxiliary parameter as input, and taking the corresponding sample supply air temperature as the expected output, to train a supply air temperature prediction model; thus, determining the corresponding supply air temperature under the second candidate water supply temperature according to the second candidate water supply temperature, the opening of the rear cooling valve and the second auxiliary parameter includes: using the supply air temperature prediction model to determine the corresponding supply air temperature under the second candidate water supply temperature according to the second candidate water supply temperature, the opening of the rear cooling valve and the second auxiliary parameter. In this way, the supply air temperature prediction model can be trained by relevant sample data, so that the trained supply air temperature prediction model can be applied to actual scenarios, thereby obtaining a more accurate supply air temperature prediction model.

[0015] Optionally, between the upper limit of the target water supply temperature and the lower limit of the water supply temperature, the water supply temperature that meets the refrigeration-dehumidification energy consumption requirement is determined as the target water supply temperature of the chilled water, including: for the candidate target water supply temperature between the upper limit of the target water supply temperature and the lower limit of the water supply temperature, the electricity cost is determined according to the refrigeration power consumption and the unit price of electricity required for the candidate target water supply temperature; the steam cost is determined according to the steam consumption and the unit price of steam required for the dehumidifier to dehumidify the air treated by the candidate target water supply temperature; the total cost corresponding to the candidate target water supply temperature is determined according to the electricity cost and the steam cost; for multiple candidate target water supply temperatures between the upper limit of the target water supply temperature and the lower limit of the water supply temperature, the candidate target water supply temperature that meets the total cost requirement is determined as the target water supply temperature of the chilled water. In this way, the target water supply temperature can be determined according to the total cost required for the chilled water system and the steam system. Then, the chilled water with the target water supply temperature can meet the refrigeration-dehumidification energy consumption requirement.

[0016] Optionally, before determining the electricity cost according to the refrigeration power consumption required for the candidate target water supply temperature and the unit price of electricity, the method further includes: determining the refrigeration capacity of the refrigeration station according to the outdoor ambient temperature and the candidate target water supply temperature; and determining the refrigeration power consumption according to the outdoor ambient temperature and the refrigeration capacity of the refrigeration station. In this way, a relatively accurate refrigeration power consumption can be determined in combination with the outdoor ambient temperature and the refrigeration capacity of the refrigeration station, thereby improving the accuracy of the target water supply temperature to a certain extent.

[0017] Optionally, determining the refrigeration power consumption according to the outdoor ambient temperature and the refrigeration supply of the refrigeration station includes: determining the refrigeration power consumption according to the outdoor ambient temperature, outdoor ambient humidity, and the refrigeration supply of the refrigeration station. In this way, the refrigeration power consumption is comprehensively determined by combining the outdoor ambient temperature, outdoor ambient humidity, and the refrigeration supply of the refrigeration station, thereby improving the accuracy of the refrigeration power consumption and, to a certain extent, improving the accuracy of the target water supply temperature.

[0018] Optionally, before determining the refrigeration power consumption according to the outdoor ambient temperature, outdoor ambient humidity, and refrigeration supply of the refrigeration station, the method further includes: taking the sample outdoor ambient temperature, the sample outdoor ambient humidity, and the sample refrigeration supply of the refrigeration station as inputs, and taking the corresponding sample refrigeration power consumption as expected outputs, and training a refrigeration power consumption prediction model; in this way, determining the refrigeration power consumption according to the outdoor ambient temperature, the outdoor ambient humidity, and the refrigeration supply of the refrigeration station includes: using the refrigeration power consumption prediction model to determine the refrigeration power consumption according to the outdoor ambient temperature, the outdoor ambient humidity, and the refrigeration supply of the refrigeration station. In this way, the refrigeration power consumption prediction model can be trained through relevant sample data, so that the trained refrigeration power consumption prediction model can be applied to actual scenarios, thereby obtaining a more accurate refrigeration power consumption, and to a certain extent, also improving the accuracy of the target water supply temperature.

[0019] Optionally, the determining of the cooling capacity of the refrigeration station according to the outdoor ambient temperature and the candidate target water supply temperature includes: determining the cooling capacity of the refrigeration station according to the outdoor ambient temperature, the candidate target water supply temperature and a third auxiliary parameter; the third auxiliary parameter includes one or more of the outdoor ambient humidity, the number of dehumidifiers in operation, and the indoor dew point. In this way, the cooling capacity of the refrigeration station can be comprehensively determined based on the consideration of the outdoor ambient temperature and the candidate target water supply temperature, and then considering one, two or three of the outdoor ambient humidity, the number of dehumidifiers in operation, and the indoor dew point, so as to improve the accuracy of the cooling capacity of the refrigeration station, and to a certain extent, also improve the accuracy of the target water supply temperature.

[0020] Optionally, before determining the cooling capacity of the refrigerating station according to the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter, the method further includes: taking the sample outdoor ambient temperature, the sample candidate target water supply temperature and the third sample auxiliary parameter as input, and taking the corresponding sample refrigerating station cooling capacity as the expected output, training to obtain a refrigerating station cooling capacity prediction model; thus, determining the refrigerating station cooling capacity according to the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter includes: using the refrigerating station cooling capacity prediction model to determine the refrigerating station cooling capacity according to the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter. In this way, the refrigerating station cooling capacity prediction model can be trained by relevant sample data, so that the trained refrigerating station cooling capacity prediction model can be applied to actual scenarios, thereby obtaining a more accurate refrigerating station cooling capacity, and to a certain extent, also improving the accuracy of the target water supply temperature.

[0021] Optionally, before determining the steam cost according to the steam consumption and the steam unit price required for the dehumidifier to dehumidify the air treated by the candidate target water supply temperature, the method further includes: determining the steam consumption according to the candidate target water supply temperature, the indoor dew point and the outdoor dew point. In this way, the candidate target water supply temperature, the indoor dew point and the outdoor dew point can be comprehensively considered to determine a more accurate steam consumption, which also improves the accuracy of the target water supply temperature to a certain extent.

[0022] Optionally, the steam usage is determined according to the candidate target water supply temperature, indoor dew point and outdoor dew point, including: when the candidate target water supply temperature is greater than the outdoor dew point, the steam usage is determined according to the difference between the outdoor dew point and the indoor dew point; when the candidate target water supply temperature is less than the outdoor dew point, the steam usage is determined according to the first difference between the outdoor dew point and the candidate target water supply temperature, and the second difference between the outdoor dew point and the indoor dew point. In this way, by constructing a difference feature, the influence of the temperature difference on the steam usage can be determined, rather than just the influence of the temperature itself on the steam usage, so the accuracy of the steam usage can be improved, and to a certain extent, the accuracy of the target water supply temperature is also improved.

[0023] Optionally, before determining the steam usage according to the candidate target water supply temperature, indoor dew point and outdoor dew point, the method further includes: taking the sample chilled water supply temperature, sample indoor dew point and sample outdoor dew point as input, and taking the corresponding sample steam usage as expected output, to train a steam usage prediction model; thus, determining the steam usage according to the candidate target water supply temperature, indoor dew point and outdoor dew point includes: using the steam usage prediction model, when the candidate target water supply temperature is greater than the outdoor dew point, determining the steam usage according to the difference between the outdoor dew point and the indoor dew point; when the chilled water supply temperature is less than the outdoor dew point, determining the steam usage according to the first difference between the outdoor dew point and the candidate target water supply temperature, and the second difference between the outdoor dew point and the indoor dew point. In this way, the steam usage prediction model can be trained through relevant sample data, so that the trained steam usage prediction model can be applied to actual scenarios, thereby obtaining a more accurate steam usage, and to a certain extent, the accuracy of the target water supply temperature is also improved.

[0024] In a second aspect, an embodiment of the present application provides a device for determining a chilled water supply temperature, the device comprising: a first water supply temperature upper limit determination module, for determining a first water supply temperature upper limit from a plurality of first candidate water supply temperatures according to the front surface cooling and rear air outlet dew points corresponding to each of the plurality of first candidate water supply temperatures for chilled water; a second water supply temperature upper limit determination module, for determining a second water supply temperature upper limit from a plurality of second candidate water supply temperatures according to the dehumidifier supply air temperatures corresponding to each of the plurality of second candidate water supply temperatures for chilled water; a target water supply temperature upper limit determination module, for determining the smaller of the first water supply temperature upper limit and the second water supply temperature upper limit as the target water supply temperature upper limit for chilled water; a target water supply temperature determination module, for determining a water supply temperature that meets the freezing-dehumidification energy consumption requirements between the target water supply temperature upper limit and the water supply temperature lower limit as the target water supply temperature for chilled water. In this way, by first determining the upper limit of the target water supply temperature that meets both the control requirements of the chilled water system and the control requirements of the steam system, we can then determine a target water supply temperature between the upper limit and the lower limit of the target water supply temperature that can meet both the cooling energy consumption requirements of the chilled water system and the dehumidification energy consumption requirements of the steam system and enable the air quality to meet the requirements for battery production.

[0025] In a third aspect, an embodiment of the present application provides an electronic device, comprising a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the method provided in the first aspect are performed.

[0026] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in the method provided in the first aspect are performed.

[0027] In a fifth aspect, an embodiment of the present application provides a computer program product, which includes a computer program or instructions, and when the computer program or instructions are executed by a processor, the method described in the first aspect is performed.

[0028] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the embodiments of the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A flow chart of a method for determining the supply temperature of chilled water provided in an embodiment of the present application; Figure 2 A structural block diagram of a device for determining the supply temperature of chilled water provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of an electronic device for executing a method for determining a chilled water supply temperature provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0032] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] It should be noted that the embodiments in this application or the technical features in the embodiments may be combined if there is no conflict.

[0034] To facilitate understanding, the chilled water system, surface cooler, and steam system are explained first.

[0035] For the chilled water system, it provides chilled water to lower the air temperature. If the chilled water temperature is low, more energy consumption is required.

[0036] For the surface cooler, it uses the chilled water provided by the chilled water system to lower the temperature of the air flowing through it. If the temperature of the air flowing through it is lowered below the air dew point, the moisture in the air will condense into water droplets. The lower the chilled water supply temperature, the lower the temperature and humidity of the air output by the front surface cooler. Furthermore, the surface cooler can be divided into the front surface cooler and the rear surface cooler with reference to the dehumidifier. Among them, the front surface cooler is the surface cooler located before the dehumidifier; the rear surface cooler is the surface cooler located after the dehumidifier.

[0037] For the steam system, which includes a dehumidifier, the dehumidifier consumes steam during the dehumidification process. If the air humidity output by the front surface cooler is low, less steam is consumed, and if the air humidity output by the front surface cooler is high, more steam is consumed.

[0038] Therefore, there is an energy consumption relationship between the chilled water system and the steam system: when the chilled water supply temperature is low, the energy consumption of the chilled water system is high, while the energy consumption of the steam system is low; when the chilled water supply temperature is high, the energy consumption of the chilled water system is low, while the energy consumption of the steam system is high.

[0039] Therefore, in the related art, it is difficult to obtain a chilled water supply temperature that meets the energy consumption requirements; in order to improve this situation, the present application provides a chilled water supply temperature determination method, device and electronic device; further, by first determining the upper limit of the target water supply temperature that meets both the chilled water system control requirements and the steam system control requirements, and then determining the target water supply temperature that meets the energy consumption requirements between the upper limit of the target water supply temperature and the lower limit of the water supply temperature. In this way, it is easy to obtain a water supply temperature that meets the energy consumption requirements.

[0040] It should be noted that the above-mentioned chilled water supply temperature determination method can be applied to terminal devices such as laptops and desktop computers, and can also be applied to server devices such as servers, server clusters or cloud platforms, and this application does not limit this. For the convenience of writing, this application is described below by applying it to a server.

[0041] The defects existing in the solutions in the above-mentioned related technologies are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above-mentioned problems and the solutions proposed in the embodiments of the present invention below for the above-mentioned problems should all be the contributions made by the inventor to the present invention during the process of the present invention.

[0042] Please refer to Figure 1 , which shows a flow chart of a method for determining the chilled water supply temperature provided by an embodiment of the present application. Figure 1 As shown, the method for determining the chilled water supply temperature includes the following steps 101 to 104.

[0043] Step 101, determining a first water supply temperature upper limit from a plurality of first candidate water supply temperatures of chilled water according to the respective corresponding front surface cooling rear air outlet dew points; In some application scenarios, for example, a temperature range that meets the product production requirements can be determined based on the historical temperature of the chilled water, and each water supply temperature within the temperature range can be determined as the first candidate water supply temperature. In other application scenarios, for example, each historical temperature can also be determined as the first candidate water supply temperature. This application does not limit this.

[0044] The dew point of the air after the front surface cooling is the dew point of the air after the front surface cooler is treated. The dew point of the air represents the temperature point at which the water vapor in the air begins to condense into water droplets.

[0045] It should be noted that the front surface cooler can use the chilled water from the chilled water system to initially cool the air. If the air temperature drops below the outlet dew point of the front surface cooler, the moisture in the air will condense into water droplets, which can initially dehumidify the air.

[0046] In some application scenarios, for each first candidate water supply temperature, the corresponding front surface cooling rear air outlet dew point can be determined. Then, multiple first candidate water supply temperatures can be screened according to the front surface cooling rear air outlet dew point to determine the first water supply temperature upper limit.

[0047] Step 102, determining a second water supply temperature upper limit from a plurality of second candidate water supply temperatures for chilled water according to the dehumidifier supply air temperatures respectively corresponding to the plurality of second candidate water supply temperatures; In some application scenarios, for example, a temperature range that meets the product production requirements can be determined based on the historical temperature of the chilled water, and each water supply temperature within the temperature range can be determined as the second candidate water supply temperature. In other application scenarios, for example, each historical temperature can also be determined as the second candidate water supply temperature. This application does not limit this.

[0048] Furthermore, the second candidate water supply temperature may be the same as or different from the first candidate water supply temperature, and this application does not impose any limitation on this.

[0049] It should be noted that the dehumidifier air supply temperature is closely related to the chilled water supply temperature. Specifically, the lower the chilled water supply temperature, the lower the temperature of the cooling coil in the dehumidifier, so that the air passing through the cooling coil is cooled to a greater extent, and the dehumidifier air supply temperature is also lower.

[0050] Therefore, for each second candidate water supply temperature, the corresponding dehumidifier air supply temperature can be determined. Then, multiple second candidate water supply temperatures can be screened according to the dehumidifier air supply temperature to determine the second water supply temperature upper limit.

[0051] Step 103, determining the smaller of the first water supply temperature upper limit and the second water supply temperature upper limit as the target water supply temperature upper limit of the chilled water; In this way, the chilled water supply temperature determined according to the target upper limit of the water supply temperature can meet the requirements of both the chilled water system and the steam system.

[0052] Step 104, determining a water supply temperature that meets the refrigeration-dehumidification energy consumption requirement between the target water supply temperature upper limit and the water supply temperature lower limit as the target water supply temperature of the chilled water.

[0053] In some application scenarios, the above-mentioned lower limit of the water supply temperature can be determined based on historical temperature data, or it can be determined based on the actual scenario, or it can be set based on the operator's experience, and this application does not limit this. Among them, if it is determined based on historical temperature data, for example, the minimum of multiple historical temperature data that meet the product production requirements can be determined as the lower limit of the water supply temperature. If it is determined based on the actual scenario, for example, multiple lower water supply temperatures can be used for testing to obtain the corresponding water supply temperature when the end pipe or equipment of the production line does not produce condensation, and it is determined as the lower limit of the water supply temperature. If it is an empirical value, it can be, for example, a temperature value below 4°.

[0054] The above-mentioned refrigeration-dehumidification energy consumption requirement is to take into account the energy consumption requirements of the chilled water system and the steam system. For example, it may include that the refrigeration cost of the chilled water system and the dehumidification cost of the steam system are within their respective budget ranges, or the total cost of the two is within the budget range. Alternatively, the chilled water system meets the cooling demand and the dehumidification energy consumption of the steam system is within the budget range, etc.

[0055] In some application scenarios, for example, each temperature value between the target water supply temperature upper limit and the water supply temperature lower limit may be traversed, and the water supply temperature that meets the refrigeration-dehumidification energy consumption requirement may be determined as the target water supply temperature.

[0056] In this implementation, the target water supply temperature upper limit that meets both the control requirements of the chilled water system and the steam system is first determined, and then a target water supply temperature that meets both the cooling energy consumption requirements of the chilled water system and the dehumidification energy consumption requirements of the steam system and that can make the air quality meet the requirements for battery production can be determined between the target water supply temperature upper limit and the water supply temperature lower limit.

[0057] In some optional implementations, the step 101 described above, according to the front surface cooling rear air outlet dew points corresponding to the plurality of first candidate water supply temperatures of the chilled water, determining the first water supply temperature upper limit from the plurality of first candidate water supply temperatures includes: Sub-step 1011, for any first candidate water supply temperature among the plurality of first candidate water supply temperatures, determining the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature and the outdoor dew point; The outdoor dew point mentioned above refers to the temperature at which outdoor air is cooled under constant pressure conditions to the point where water droplets just begin to condense.

[0058] Among them, if the chilled water supply temperature is low, the difference between the outlet dew point after the front surface cooling and the outdoor dew point will be larger, so that the air can be dehumidified more effectively. Therefore, combining the outdoor dew point and the first candidate water supply temperature, a more suitable outlet dew point after the front surface cooling can be determined, thereby achieving a more effective dehumidification effect.

[0059] In some application scenarios, for example, it is possible to search historical data to see whether there is a front surface cooling and rear air outlet dew point corresponding to the same water supply temperature and the same outdoor dew point. If so, the found historical front surface cooling and rear air outlet dew point can be determined as the front surface cooling and rear air outlet dew point corresponding to the first candidate water supply temperature.

[0060] Sub-step 1012, determining the first candidate water supply temperature corresponding to the front surface cooling rear air outlet dew point that is less than the dew point threshold as the first water supply temperature upper limit.

[0061] The dew point threshold can be set according to product production requirements, for example, for lithium batteries, in order to reduce the risk of moisture, the dew point threshold can be set to 11°.

[0062] Therefore, if the dew point of the air outlet after a certain front surface cooling is less than the dew point threshold, the first candidate water supply temperature used to determine the dew point of the air outlet after the front surface cooling can be determined as the first water supply temperature upper limit.

[0063] Furthermore, if there are multiple front-surface cooling and rear-air outlet dew points that are less than the dew point threshold, any one of the multiple first candidate water supply temperatures corresponding to the multiple front-surface cooling and rear-air outlet dew points can be determined as the first water supply temperature upper limit. Alternatively, the maximum value of the multiple first candidate water supply temperatures can be determined as the first water supply temperature upper limit, which is not limited in this application.

[0064] In this implementation, a more suitable front surface cooling and rear air outlet dew point can be determined in combination with the outdoor dew point, thereby determining a more accurate upper limit of the first water supply temperature, so as to improve the dehumidification effect while meeting product production requirements.

[0065] In some optional implementations, the step of determining the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature and the outdoor dew point in the above sub-step 1011 includes: First, when the first candidate water supply temperature is greater than a preset front surface cooling rear air outlet dew point threshold, the outdoor dew point is determined as the front surface cooling rear air outlet dew point; The above-preset front surface cooling and rear air outlet dew point threshold can be determined, for example, according to the dehumidification capacity of the surface cooling coil. For example, the front surface cooling and rear air outlet dew point when the surface cooling coil has no dehumidification capacity or has a weak dehumidification capacity is determined as the preset front surface cooling and rear air outlet dew point threshold.

[0066] Then, if the first candidate water supply temperature is greater than the preset front surface cooling and rear air outlet dew point, the surface cooling coil does not have the dehumidification capacity or the dehumidification capacity is weak, so the outdoor dew point can be determined as the front surface cooling and rear air outlet dew point.

[0067] Then, when the first candidate water supply temperature is lower than the preset front surface cooling air outlet dew point, the front surface cooling air outlet dew point corresponding to the first candidate water supply temperature is determined according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter; the first auxiliary parameter includes one or two of the front surface cooling valve opening and the air supply fan frequency.

[0068] The opening degree of the front surface cooler valve can reflect the opening degree of the valve of the front surface cooler controlling the air, thereby affecting the air quality during product production.

[0069] The above-mentioned air supply fan frequency can affect the speed of air flow, thereby affecting the amount of air entering the factory workshop.

[0070] Therefore, on the basis of considering the first candidate water supply temperature and the outdoor dew point, the front surface cooling valve opening, the air supply fan frequency or both thereof can be combined to comprehensively determine the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature, so as to improve the accuracy of the front surface cooling rear air outlet dew point.

[0071] In this implementation, the corresponding front surface cooling rear air outlet dew point can be adaptively determined based on the comparison between the first candidate water supply temperature and the preset front surface cooling rear air outlet dew point threshold, thereby improving the accuracy of the front surface cooling rear air outlet dew point while meeting product production requirements.

[0072] In some application scenarios, when determining the outlet air dew point after the front surface cooling in combination with the first candidate water supply temperature, outdoor dew point, front surface cooling valve opening, and air supply fan frequency, for example, corresponding weights can be assigned to each influencing factor based on the degree of influence of the first candidate water supply temperature, outdoor dew point, front surface cooling valve opening, and air supply fan frequency on the outlet air dew point after the front surface cooling, so as to obtain the outlet air dew point after the front surface cooling after weighting the relevant data of each influencing factor.

[0073] Furthermore, for example, after weighting, a preset error term may be added to correct the result, so as to further improve the accuracy of the dew point of the air outlet after the front surface cooling.

[0074] In some other application scenarios, for example, the front surface cooling rear air outlet dew point can be determined by the front surface cooling rear air outlet dew point prediction model. Then, in some optional implementations, when the first candidate water supply temperature is less than the preset front surface cooling rear air outlet dew point, before determining the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter, the method further includes: taking the first candidate sample water supply temperature, the sample outdoor dew point and the first sample auxiliary parameter as input, and taking the corresponding sample front surface cooling rear air outlet dew point as the expected output, training to obtain the front surface cooling rear air outlet dew point prediction model.

[0075] It should be noted that the above-mentioned first candidate sample water supply temperature, sample outdoor dew point, first sample auxiliary parameters and sample front surface cooling and rear air outlet dew point can be, for example, corresponding historical data or data set by the operator based on experience, and this application does not impose any restrictions on this.

[0076] Furthermore, when training the front-surface cooling and rear-air outlet prediction model, the sample data can be divided into a training set and a test set, wherein the sample data in the training set is used to train the front-surface cooling and rear-air outlet prediction model, and the sample data in the test set is used to test the prediction ability of the front-surface cooling and rear-air outlet prediction model.

[0077] Furthermore, when training the front surface cooling and rear air outlet dew point prediction model, the following linear model can be established based on the linear relationship between the first candidate water supply temperature, outdoor dew point, front surface cooling valve opening, air supply fan frequency and front surface cooling and rear air outlet dew point: ;in, The intercept that represents the linear relationship; , , , Characterize the weight coefficient; characterizing a first candidate water supply temperature; Characterizes outdoor dew point; Characterize the opening of the front surface cooling valve; Characterizes the frequency of the air supply fan; Characterize the error term.

[0078] Furthermore, during the training process, for example, the least squares method can be used to estimate the model parameters (i.e. , , , ). In addition, when the error between the output front surface cooling rear air outlet dew point and the sample front surface cooling rear air outlet dew point is the smallest, it is determined that the front surface cooling rear air outlet dew point prediction model converges.

[0079] Then, the sample data in the test set can be used to evaluate the converged front-surface cooling and rear-outlet dew point prediction model. In some application scenarios, for example, R 2 (coefficient of determination), adjusted R 2 The goodness of fit of the front-surface cooling and rear-outlet air dew point prediction model is evaluated by using indicators such as (adjusted determination coefficient) and F statistics. When it meets the evaluation requirements, the front-surface cooling and rear-outlet air dew point can be used in actual scenarios.

[0080] Subsequently, the front-surface cooling air outlet dew point prediction model can be used to determine the front-surface cooling air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter when the first candidate water supply temperature is lower than the preset front-surface cooling air outlet dew point.

[0081] In this implementation method, the front surface cooling and rear air outlet dew point prediction model can be trained through relevant sample data, so that the trained front surface cooling and rear air outlet dew point prediction model can be applied to actual scenarios to obtain a more accurate front surface cooling and rear air outlet dew point, which also improves the accuracy of the target water supply temperature to a certain extent.

[0082] In some optional implementations, the step 102 described above, according to the dehumidifier supply air temperatures corresponding to the plurality of second candidate water supply temperatures for chilled water, determining the second water supply temperature upper limit from the plurality of second candidate water supply temperatures, includes: Sub-step 1021, for any second candidate water supply temperature among the plurality of second candidate water supply temperatures, determining the dehumidifier supply air temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature and the opening of the rear surface cooling valve; The opening of the rear cooling valve can affect the chilled water flow through the rear cooling device, and further affect the dehumidifier air supply temperature. The larger the opening of the rear cooling valve, the greater the chilled water flow, and the lower the dehumidifier air supply temperature. On the contrary, the smaller the opening of the rear cooling valve, the smaller the chilled water flow, and the higher the dehumidifier air supply temperature.

[0083] In some application scenarios, for example, it is possible to search historical data to see whether there is a dehumidifier supply air temperature corresponding to the same water supply temperature and the same rear surface cooling valve opening. If so, the historical dehumidifier supply air temperature found can be determined as the dehumidifier supply air temperature corresponding to the second candidate water supply temperature.

[0084] Sub-step 1022, determining the second candidate water supply temperature corresponding to the supply air temperature that is less than the dehumidifier supply air temperature threshold as the second water supply temperature upper limit.

[0085] The above dehumidifier air supply temperature threshold can be set according to product production requirements, for example, for lithium batteries, in order to reduce the risk of moisture, the dehumidifier air supply temperature threshold can be set to 13°.

[0086] Therefore, if the air supply temperature of a certain dehumidifier is lower than the dehumidifier air supply temperature threshold, the second candidate water supply temperature used to determine the dehumidifier air supply temperature may be determined as the second water supply temperature upper limit.

[0087] Furthermore, if there are multiple dehumidifier supply air temperatures that are less than the dehumidifier supply air temperature threshold, any one of the multiple second candidate water supply temperatures corresponding to the multiple dehumidifier supply air temperatures can be determined as the second water supply temperature upper limit. Alternatively, the maximum value of the multiple second candidate water supply temperatures can be determined as the second water supply temperature upper limit, which is not limited in this application.

[0088] In this implementation, a more suitable dehumidifier air supply temperature can be determined in combination with the opening of the rear surface cooling valve, thereby determining a more accurate upper limit of the second water supply temperature, so as to improve the dehumidification effect while meeting product production requirements.

[0089] In some optional implementations, the method of determining the dehumidifier supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature and the opening of the rear surface cooling valve as described in the above step 1021 includes: determining the supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature, the opening of the rear surface cooling valve and a second auxiliary parameter; the second auxiliary parameter includes one or more of the workshop temperature, the outdoor ambient temperature and the indoor dew point.

[0090] The dehumidifier can adjust the dehumidifier air supply temperature according to the different workshop temperatures to achieve the best dehumidification effect. Among them, a higher workshop temperature may lead to a lower dehumidifier air supply temperature. Conversely, a lower workshop temperature may lead to a higher dehumidifier air supply temperature. Therefore, the workshop temperature can affect the dehumidifier air supply temperature.

[0091] When the outdoor ambient temperature is high, in order to fully dehumidify the air, the dehumidifier may adjust the air supply temperature to a lower level; on the contrary, when the outdoor ambient temperature is low, the dehumidifier can appropriately increase its air supply temperature. Therefore, the outdoor ambient temperature can affect the dehumidifier's air supply temperature.

[0092] When the indoor dew point is high, effective dehumidification can be achieved with a lower dehumidifier supply air temperature; when the indoor dew point is low, unnecessary cooling can be reduced with a slightly higher dehumidifier supply air temperature. Therefore, the indoor dew point can affect the dehumidifier supply air temperature.

[0093] Therefore, in this implementation method, the dehumidifier supply air temperature can be determined jointly based on the second candidate water supply temperature and the opening of the rear surface cooling valve, and then the workshop temperature, outdoor ambient temperature and indoor dew point, one, two or three of them can be considered to improve the accuracy of the dehumidifier supply air temperature.

[0094] In some application scenarios, when determining the dehumidifier supply air temperature in combination with the second candidate water supply temperature, the opening of the rear surface cooling valve, the workshop temperature, the outdoor ambient temperature, and the indoor dew point, for example, corresponding weights can be assigned to each influencing factor based on the degree of influence of the second candidate water supply temperature, the opening of the rear surface cooling valve, and the workshop temperature, the outdoor ambient temperature, and the indoor dew point on the dehumidifier supply air temperature, so as to obtain the dehumidifier supply air temperature after weighting the relevant data of each influencing factor.

[0095] In other application scenarios, for example, the dehumidifier supply air temperature can be determined by a supply air temperature prediction model. Then, in some optional implementations, before determining the supply air temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature, the rear surface cooling valve opening, and the second auxiliary parameter, the method further includes: using the second candidate sample water supply temperature, the sample rear surface cooling valve opening, and the second sample auxiliary parameter as inputs and the corresponding sample supply air temperature as the expected output, training to obtain a supply air temperature prediction model; It should be noted that the above-mentioned second candidate sample water supply temperature, sample rear surface cooling valve opening, second sample auxiliary parameters and sample air supply temperature can be, for example, corresponding historical data or data set by the operator based on experience, and this application does not impose any restrictions on this.

[0096] In some application scenarios, for example, a supply air temperature prediction model can be established through a spline function. Specifically, a quadratic spline function can be selected to capture how factors such as the second candidate sample water supply temperature, the sample rear surface cooling valve opening, and the second sample auxiliary parameters jointly affect the dehumidifier supply air temperature.

[0097] Furthermore, in the training process of the supply air temperature prediction model, for example, the least square method can also be used to estimate the relevant model parameters. In addition, the supply air temperature prediction model can be determined to be converged when the loss between the output dehumidifier supply air temperature and the sample supply air temperature is minimized. In addition, for example, an L2 regularization term can be added to the spline function to prevent the supply air temperature prediction model from overfitting.

[0098] Then, the supply air temperature prediction model may be used to determine the supply air temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature, the opening of the rear surface cooling valve and the second auxiliary parameter.

[0099] In this implementation, the supply air temperature prediction model can be trained using relevant sample data, so that the trained supply air temperature prediction model can be applied to actual scenarios to obtain a more accurate supply air temperature prediction model.

[0100] In some optional implementations, the step 104 described above, determining the target water supply temperature of the chilled water as the target water supply temperature between the target water supply temperature upper limit and the water supply temperature lower limit, wherein the water supply temperature that satisfies the refrigeration-dehumidification energy consumption requirement is: Sub-step 1041, for a candidate target water supply temperature between the target water supply temperature upper limit and the target water supply temperature lower limit, determine the electricity cost according to the refrigeration power consumption required for the candidate target water supply temperature and the unit price of electricity; For the chilled water system, it needs electricity to process the temperature of the chilled water to the candidate target water supply temperature. Therefore, the electricity cost can be determined by combining the required chilled power consumption and the unit price of electricity. Specifically, the product of the chilled power consumption and the unit price of electricity can be determined as the electricity cost.

[0101] Sub-step 1042, determining the steam cost according to the steam consumption required by the dehumidifier to dehumidify the air treated at the candidate target water supply temperature and the steam unit price; For the steam system, the dehumidifier needs to use steam to dehumidify the air, so the steam cost can be determined by combining the required steam consumption and the steam unit price. Specifically, the product of the steam consumption and the steam unit price can be determined as the steam cost.

[0102] Sub-step 1043, determining the total cost corresponding to the candidate target water supply temperature according to the electricity cost and the steam cost; That is, the electricity cost and steam cost can be added together to get the corresponding total cost.

[0103] Sub-step 1044, for a plurality of candidate target water supply temperatures between the target water supply temperature upper limit and the water supply temperature lower limit, determine a candidate target water supply temperature that meets the total cost requirement as the target water supply temperature of the chilled water.

[0104] The above total cost requirement may be, for example, within the budget cost range, or the lowest total cost, etc., and this application does not impose any limitation on this.

[0105] In some application scenarios, for example, the total cost can also be determined by constructing a Cartesian product. Specifically, if set A includes the refrigeration power consumption and steam consumption at different candidate target water supply temperatures, and set B includes the electricity unit price and steam unit price at different time periods. Then, in time period b, the corresponding data can be obtained from set A and set B respectively. Among them, if the candidate target water supply temperature is a1°, the corresponding refrigeration power consumption that can be obtained from set A is , steam consumption is , the corresponding electricity price obtained from set B is The unit price of steam is , the total cost can be obtained Similarly, in the time period b, the corresponding data is obtained from the set A and the set B. And for the candidate target water supply temperature a2°, the corresponding total cost is obtained. Then, the total costs corresponding to the two candidate target water supply temperatures may be compared, and then the candidate target water supply temperature corresponding to the one with the smaller total cost may be determined as the target water supply temperature.

[0106] In this implementation, the target water supply temperature can be determined based on the total cost required by the chilled water system and the steam system. Then, the chilled water with the target water supply temperature can meet the refrigeration-dehumidification energy consumption requirement.

[0107] In some optional implementations, before determining the electricity cost according to the refrigeration power consumption required for the candidate target water supply temperature and the unit price of electricity in the above step 1041, the method further includes: First, the cooling capacity of the refrigeration station is determined according to the outdoor ambient temperature and the candidate target water supply temperature; In some application scenarios, when the outdoor ambient temperature increases, the indoor cooling load will usually increase, so the refrigeration station needs to provide more cooling to reduce the air temperature. Therefore, the outdoor ambient temperature and the candidate target water supply temperature can be combined to jointly determine the cooling capacity of the refrigeration station.

[0108] In some application scenarios, for example, it is possible to search historical data to see whether there are the same or similar outdoor ambient temperatures and water supply temperatures. If so, the corresponding refrigeration station cooling capacity can be determined as the refrigeration station power consumption corresponding to the candidate target water supply temperature.

[0109] Then, the refrigeration power consumption is determined according to the outdoor ambient temperature and the refrigeration capacity of the refrigeration station.

[0110] That is to say, the outdoor ambient temperature will also affect the power consumption of refrigeration. Specifically, when the indoor cooling load increases due to the outdoor ambient temperature, the chilled water system needs more electricity to output chilled water at a lower temperature.

[0111] Furthermore, the amount of cooling provided by the refrigeration station can reflect the amount of cooling load that needs to be dealt with. In order to meet the corresponding cooling load requirements, it is necessary to adaptively increase or decrease the operating time or number of operating equipment in the refrigeration station, which will also affect the refrigeration power consumption.

[0112] In some application scenarios, for example, it is also possible to search historical data for the same or similar outdoor ambient temperature and refrigeration station cooling capacity. If so, the corresponding refrigeration power consumption can be determined as the refrigeration power consumption corresponding to the candidate target water supply temperature.

[0113] Then, in this implementation, a more accurate refrigeration power consumption can be determined in combination with the outdoor ambient temperature and the cooling capacity of the refrigeration station, which improves the accuracy of the target water supply temperature to a certain extent.

[0114] In some optional implementations, the above-mentioned determining the refrigeration power consumption based on the outdoor ambient temperature and the cooling capacity of the refrigeration station includes: determining the refrigeration power consumption based on the outdoor ambient temperature, outdoor ambient humidity, and the cooling capacity of the refrigeration station.

[0115] The outdoor humidity can reflect the moisture content in the air. In order to meet the production requirements, the chilled water system needs to output chilled water of corresponding temperature for dehumidification, which will affect the refrigeration power consumption.

[0116] Therefore, in this implementation, the outdoor ambient temperature, outdoor ambient humidity and the cooling capacity of the refrigeration station are combined to comprehensively determine the refrigeration power consumption, which improves the accuracy of the refrigeration power consumption and, to a certain extent, improves the accuracy of the target water supply temperature.

[0117] In some application scenarios, for example, the refrigeration power consumption can be determined by a refrigeration power consumption prediction model. Then, in some optional implementations, before determining the refrigeration power consumption according to the outdoor environment temperature, the outdoor environment humidity, and the refrigeration supply of the refrigeration station, the method further includes: taking the sample outdoor environment temperature, the sample outdoor environment humidity, and the refrigeration supply of the sample refrigeration station as inputs and taking the corresponding sample refrigeration power consumption as the expected output, training to obtain a refrigeration power consumption prediction model; It should be noted that the above-mentioned sample outdoor ambient temperature, sample outdoor ambient humidity, sample refrigeration station cooling capacity and sample refrigeration power consumption can be, for example, corresponding historical data or data set by the operator based on experience, and this application does not impose any restrictions on this.

[0118] In some application scenarios, for example, the above-mentioned refrigeration power consumption prediction model can be established based on a quadratic polynomial to capture the nonlinear relationship between various influencing factors and reduce the overfitting phenomenon of the model. Specifically, the above-mentioned quadratic polynomial can be, for example, .in, Characterize the energy efficiency ratio of the refrigeration station COP (Coefficient of Performance), Characterizes the refrigeration power consumption, Characterizes the outdoor ambient temperature or outdoor ambient humidity. , , Characterize the model parameters, Characterize the cooling capacity of the refrigeration station. Then, the initial refrigeration power consumption prediction model can be trained through various sample data to determine the model parameters and obtain the converged refrigeration power consumption prediction model.

[0119] Then, the refrigeration power consumption prediction model can be used to determine the refrigeration power consumption according to the outdoor environment temperature, outdoor environment humidity, and the cooling capacity of the refrigeration station.

[0120] In this implementation, the refrigeration power consumption prediction model can be trained using relevant sample data, so that the trained refrigeration power consumption prediction model can be applied to actual scenarios to obtain more accurate refrigeration power consumption, which also improves the accuracy of the target water supply temperature to a certain extent.

[0121] In some optional implementations, the above-mentioned determination of the cooling capacity of the refrigeration station based on the outdoor ambient temperature and the candidate target water supply temperature includes: determining the cooling capacity of the refrigeration station based on the outdoor ambient temperature, the candidate target water supply temperature and a third auxiliary parameter; the third auxiliary parameter includes one or more of the outdoor ambient humidity, the number of dehumidifiers in operation, and the indoor dew point.

[0122] In some application scenarios, high outdoor humidity means that the moisture content in the air is high. In this way, the high-humidity air needs to be processed to a lower humidity level before entering the refrigeration station. This will cause the refrigeration station to not only process the sensible heat of the air, but also the latent heat. Therefore, high outdoor humidity will increase the total heat load of the refrigeration station, and more cooling capacity of the refrigeration station may be required. Therefore, outdoor humidity will affect the cooling capacity of the refrigeration station.

[0123] The number of dehumidifiers in operation can affect the air processing capacity of the refrigeration station. In other words, the number of dehumidifiers in operation can affect the moisture content in the air, thereby affecting the cooling capacity of the refrigeration station.

[0124] In order to prevent moisture in the air from condensing inside the refrigeration station or at the terminal equipment, the cooling water temperature provided by the refrigeration station needs to be lower than the indoor dew point. If the indoor dew point is higher, the refrigeration station needs to provide cooling water at a lower temperature. Subsequently, the indoor dew point will also affect the cooling capacity of the refrigeration station.

[0125] Therefore, in this implementation method, the cooling capacity of the refrigeration station can be comprehensively determined based on the consideration of the outdoor ambient temperature and the candidate target water supply temperature, and then the outdoor ambient humidity, the number of dehumidifiers in operation, and one, two or three of the indoor dew points, so as to improve the accuracy of the cooling capacity of the refrigeration station and, to a certain extent, also improve the accuracy of the target water supply temperature.

[0126] In some application scenarios, for example, the degree of influence of outdoor ambient temperature, candidate target water supply temperature, outdoor ambient humidity, number of dehumidifiers in operation, and indoor dew point on the cooling capacity of the refrigeration station can be combined, and corresponding weights can be set for each influencing factor, so as to determine the cooling capacity of the refrigeration station based on the weights.

[0127] In other application scenarios, for example, the refrigeration capacity of the refrigeration station can be determined by a refrigeration capacity prediction model. Then, in some optional implementations, before determining the refrigeration capacity of the refrigeration station according to the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter, the method further includes: taking the sample outdoor ambient temperature, the sample candidate target water supply temperature and the third sample auxiliary parameter as inputs and the corresponding sample refrigeration capacity as the expected output, training to obtain the refrigeration capacity prediction model; It should be noted that the above-mentioned sample outdoor ambient temperature, sample candidate target water supply temperature, third sample auxiliary parameter and sample refrigeration station cooling capacity can be, for example, corresponding historical data or data set by the operator based on experience, and this application does not impose any restrictions on this.

[0128] In some application scenarios, for example, a refrigeration station cooling capacity prediction model can be established based on a quadratic polynomial to capture the nonlinear relationship between various influencing factors and improve the extrapolation ability of the model.

[0129] Then, the cooling capacity of the refrigeration station can be determined by using the refrigeration station cooling capacity prediction model according to the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter.

[0130] In this implementation, the refrigeration station cooling capacity prediction model can be trained using relevant sample data, so that the trained refrigeration station cooling capacity prediction model can be applied to actual scenarios to obtain a more accurate refrigeration station cooling capacity, which also improves the accuracy of the target water supply temperature to a certain extent.

[0131] In some optional implementations, before determining the steam cost according to the steam consumption and steam unit price required for the dehumidifier to dehumidify the air treated by the candidate target water supply temperature as described in the above step 1042, the method also includes: determining the steam consumption according to the candidate target water supply temperature, the indoor dew point and the outdoor dew point.

[0132] In some application scenarios, the lower the candidate target water supply temperature, the stronger its cooling capacity is, so the air entering the dehumidifier can be cooled to a lower temperature, making it easier to condense moisture into water droplets, making it easier for the dehumidifier to dehumidify, and thus reducing steam usage; on the contrary, the higher the candidate target water supply temperature, the weaker its cooling capacity is, so it is more difficult for the air entering the dehumidifier to condense moisture into water droplets, making it difficult for the dehumidifier to dehumidify, and thus increasing steam usage. Therefore, the candidate target water supply temperature can affect steam usage.

[0133] The higher the indoor dew point, the more moisture the dehumidifier needs to remove, and the more steam is required; conversely, the lower the indoor dew point, the less moisture the dehumidifier needs to remove, and the corresponding steam consumption is also less. Therefore, the indoor dew point can affect the steam consumption.

[0134] The higher the outdoor dew point, the greater the humidity of the air entering the room, the more moisture the dehumidifier needs to handle, and the more steam required. Conversely, the lower the outdoor dew point, the lower the humidity of the air entering the room, the less moisture the dehumidifier needs to handle, and the less steam required. Therefore, the outdoor dew point can affect the steam usage.

[0135] Therefore, in this implementation, the candidate target water supply temperature, indoor dew point and outdoor dew point can be comprehensively considered to determine a more accurate steam usage, which also improves the accuracy of the target water supply temperature to a certain extent.

[0136] In some optional implementations, the above-mentioned determining the steam usage according to the candidate target water supply temperature, the indoor dew point, and the outdoor dew point includes: First, when the candidate target water supply temperature is greater than the outdoor dew point, the steam usage is determined according to the difference between the outdoor dew point and the indoor dew point; When the candidate target water supply temperature is greater than the outdoor dew point, the dehumidification capacity of the chilled water is weak, and then the candidate target water supply temperature has little effect on the steam consumption. At this time, the steam consumption can be determined based on the difference between the outdoor dew point and the indoor dew point.

[0137] In some application scenarios, if there are multiple workshops, each workshop has a corresponding number of dehumidifiers. The indoor average dew point corresponding to the multiple workshops can be determined, and the steam consumption can be determined according to the difference between the outdoor dew point and the indoor average dew point. Furthermore, the quotient of the sum of the workshop dew points corresponding to each workshop and the sum of the dehumidifier capacities can be determined as the indoor average dew point.

[0138] In some application scenarios, for example, a corresponding weight coefficient and a correction term may be assigned to the difference between the outdoor dew point and the indoor dew point to obtain the steam consumption.

[0139] Then, when the candidate target water supply temperature is lower than the outdoor dew point, the steam usage is determined according to a first difference between the outdoor dew point and the candidate target water supply temperature and a second difference between the outdoor dew point and the indoor dew point.

[0140] When the candidate target water supply temperature is lower than the outdoor dew point, the chilled water has a certain dehumidification capacity, so it can reduce the load on the steam system, which will have a greater impact on the steam consumption. At this time, the steam consumption can be determined based on the first difference between the outdoor dew point and the candidate target water supply temperature, and the second difference between the outdoor dew point and the indoor dew point.

[0141] In this implementation, the difference between the outdoor dew point and the indoor dew point, the first difference or the second difference will affect the steam usage. In this way, by constructing the difference feature, the influence of the temperature difference on the steam usage can be determined, rather than the influence of the temperature itself on the steam usage, so the accuracy of the steam usage can be improved, and to a certain extent, the accuracy of the target water supply temperature is also improved.

[0142] In some application scenarios, the steam usage can be determined by a steam usage prediction model. Then, in some optional implementations, before determining the steam usage according to the candidate target water supply temperature, indoor dew point, and outdoor dew point, the method further includes: taking the sample chilled water supply temperature, the sample indoor dew point, and the sample outdoor dew point as inputs and the corresponding sample steam usage as expected outputs, training a steam usage prediction model; In some application scenarios, for example, corresponding weight coefficients and correction items can be assigned to the sample difference between the sample outdoor dew point and the sample indoor dew point, the sample first difference between the sample outdoor dew point and the sample candidate target water supply temperature, and the sample second difference between the sample outdoor dew point and the sample indoor dew point, so as to construct an initial steam consumption prediction model. Then, the initial steam consumption prediction model can be trained by multiple groups of sample data to determine the specific data of the corresponding weight coefficients and correction items, and obtain a trained steam consumption prediction model.

[0143] Then, the steam usage prediction model can be used to determine the steam usage based on the difference between the outdoor dew point and the indoor dew point when the candidate target water supply temperature is greater than the outdoor dew point; and to determine the steam usage based on the first difference between the outdoor dew point and the candidate target water supply temperature, and the second difference between the outdoor dew point and the indoor dew point when the chilled water supply temperature is less than the outdoor dew point.

[0144] In this implementation, the steam usage prediction model can be trained using relevant sample data, and the trained steam usage prediction model can be applied to actual scenarios to obtain more accurate steam usage, which also improves the accuracy of the target water supply temperature to a certain extent.

[0145] It should be noted that, for each of the above prediction models, when the relevant sample data are used for training, the sample data can be screened to eliminate abnormal data.

[0146] Screening method 1: Screening based on business experience. For example, the COP of a refrigeration station is usually between 4 and 7. If an abnormally high COP is found, the relevant sample data that obtains the COP can be eliminated.

[0147] Screening method 2: Screening based on time series stability. For example, when the water supply temperature of the refrigeration station in the system changes, the temperature of the chilled water entering the surface cooling coil will not change immediately, so the relevant sample data with large changes in the variable can be eliminated. Further, for example, the box curve method can be used for elimination. Alternatively, the median data within the preset time period is first determined. If a certain data exceeds the median data by a large amount, it can be eliminated.

[0148] Screening method three: Screening based on data relevance. For example, the cooling capacity of a refrigeration station is related to the power consumption of the refrigeration station. If the cooling capacity of the refrigeration station is high and the power consumption of the refrigeration station is low, the relevant sample data can be eliminated.

[0149] Those skilled in the art will appreciate that, in the above method of a specific embodiment, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0150] Please refer to Figure 2 , which shows a structural block diagram of a device for determining the supply temperature of chilled water provided in an embodiment of the present application. The device for determining the supply temperature of chilled water may be a module, a program segment or a code on an electronic device. It should be understood that the device is similar to the above-mentioned Figure 1 The method embodiment corresponds to and can be executed Figure 1 The method embodiment involves various steps.

[0151] Optionally, the above-mentioned chilled water supply temperature determination device includes a first water supply temperature upper limit determination module 201, a second water supply temperature upper limit determination module 202, a target water supply temperature upper limit determination module 203 and a target water supply temperature determination module 204. The first water supply temperature upper limit determination module 201 is used to determine the first water supply temperature upper limit from the plurality of first candidate water supply temperatures according to the front surface cooling and rear air outlet dew points corresponding to the plurality of first candidate water supply temperatures of chilled water; the second water supply temperature upper limit determination module 202 is used to determine the second water supply temperature upper limit from the plurality of second candidate water supply temperatures according to the dehumidifier supply air temperatures corresponding to the plurality of second candidate water supply temperatures of chilled water; the target water supply temperature upper limit determination module 203 is used to determine the smaller of the first water supply temperature upper limit and the second water supply temperature upper limit as the target water supply temperature upper limit for chilled water; the target water supply temperature determination module 204 is used to determine the water supply temperature that meets the refrigeration-dehumidification energy consumption requirement between the target water supply temperature upper limit and the water supply temperature lower limit as the target water supply temperature for chilled water.

[0152] Optionally, the first water supply temperature upper limit determination module 201 is further used to: for any first candidate water supply temperature among the multiple first candidate water supply temperatures, determine the front surface cooling and rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature and the outdoor dew point; and determine the first candidate water supply temperature corresponding to the front surface cooling and rear air outlet dew point that is less than the dew point threshold as the first water supply temperature upper limit.

[0153] Optionally, the first water supply temperature upper limit determination module 201 is further used to: when the first candidate water supply temperature is greater than a preset front surface cooling air outlet dew point threshold, determine the outdoor dew point as the front surface cooling air outlet dew point; when the first candidate water supply temperature is less than the preset front surface cooling air outlet dew point, determine the front surface cooling air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point and a first auxiliary parameter; the first auxiliary parameter includes one or two of the front surface cooling valve opening and the supply air fan frequency.

[0154] Optionally, the device also includes a front surface cooling rear air outlet dew point prediction model training module, which is used to: when the first candidate water supply temperature is less than the preset front surface cooling rear air outlet dew point, before determining the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point, and the first sample auxiliary parameter as input, and the corresponding sample front surface cooling rear air outlet dew point as the expected output, to train a front surface cooling rear air outlet dew point prediction model; in this way, the first water supply temperature upper limit determination module 201 is further used to: use the front surface cooling rear air outlet dew point prediction model, when the first candidate water supply temperature is less than the preset front surface cooling rear air outlet dew point, determine the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point, and the first auxiliary parameter.

[0155] Optionally, the second water supply temperature upper limit determination module 202 is further used to: for any second candidate water supply temperature among the multiple second candidate water supply temperatures, determine the dehumidifier supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature and the opening of the rear surface cooling valve; and determine the second candidate water supply temperature corresponding to the supply air temperature that is less than the dehumidifier supply air temperature threshold as the second water supply temperature upper limit.

[0156] Optionally, the second water supply temperature upper limit determination module 202 is further used to determine the corresponding supply air temperature under the second candidate water supply temperature according to the second candidate water supply temperature, the opening of the rear surface cooling valve and a second auxiliary parameter; the second auxiliary parameter includes one or more of the workshop temperature, the outdoor ambient temperature and the indoor dew point.

[0157] Optionally, the device also includes a supply air temperature prediction model training module, which is used to: before determining the supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature, the opening of the rear surface cooling valve and the second auxiliary parameter, use the second candidate sample water supply temperature, the sample rear surface cooling valve opening and the second sample auxiliary parameter as input and the corresponding sample supply air temperature as the expected output to train a supply air temperature prediction model; in this way, the second water supply temperature upper limit determination module 202 is further used to: use the supply air temperature prediction model to determine the supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature, the opening of the rear surface cooling valve and the second auxiliary parameter.

[0158] Optionally, the target water supply temperature determination module 204 is further used to: determine the electricity cost for the candidate target water supply temperatures between the target water supply temperature upper limit and the water supply temperature lower limit, based on the refrigeration power consumption and the unit price of electricity required for the candidate target water supply temperatures; determine the steam cost based on the steam consumption and the unit price of steam required for the dehumidifier to dehumidify the air treated by the candidate target water supply temperature; determine the total cost corresponding to the candidate target water supply temperature based on the electricity cost and the steam cost; and for multiple candidate target water supply temperatures between the target water supply temperature upper limit and the water supply temperature lower limit, determine the candidate target water supply temperature that meets the total cost requirement as the target water supply temperature of the chilled water.

[0159] Optionally, the device also includes a refrigeration power consumption determination module, which is used to: determine the cooling capacity of the refrigeration station based on the outdoor ambient temperature and the candidate target water supply temperature before determining the electricity cost based on the refrigeration power consumption required for the candidate target water supply temperature and the unit price of electricity; determine the refrigeration power consumption based on the outdoor ambient temperature and the cooling capacity of the refrigeration station.

[0160] Optionally, the refrigeration power consumption determination module is further used to determine the refrigeration power consumption according to the outdoor ambient temperature, outdoor ambient humidity, and the cooling capacity of the refrigeration station.

[0161] Optionally, the device also includes a refrigeration power consumption prediction model training module, which is used to: before determining the refrigeration power consumption based on the outdoor ambient temperature, outdoor ambient humidity, and the cooling capacity of the refrigeration station, use the sample outdoor ambient temperature, sample outdoor ambient humidity, and sample refrigeration station cooling capacity as inputs and the corresponding sample refrigeration power consumption as expected outputs to train a refrigeration power consumption prediction model; in this way, the refrigeration power consumption determination module is further used to: use the refrigeration power consumption prediction model to determine the refrigeration power consumption based on the outdoor ambient temperature, outdoor ambient humidity, and the cooling capacity of the refrigeration station.

[0162] Optionally, the refrigeration power consumption determination module is further used to determine the cooling capacity of the refrigeration station based on the outdoor ambient temperature, the candidate target water supply temperature and a third auxiliary parameter; the third auxiliary parameter includes one or more of the outdoor ambient humidity, the number of dehumidifiers in operation, and the indoor dew point.

[0163] Optionally, the device also includes a refrigeration station cooling capacity prediction model training module, which is used to: before determining the cooling capacity of the refrigeration station based on the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter, use the sample outdoor ambient temperature, the sample candidate target water supply temperature and the third sample auxiliary parameter as input, and use the corresponding sample refrigeration station cooling capacity as the expected output to train a refrigeration station cooling capacity prediction model; in this way, the refrigeration power consumption determination module is further used to: use the refrigeration station cooling capacity prediction model to determine the cooling capacity of the refrigeration station based on the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter.

[0164] Optionally, the device also includes a steam usage determination module, which is used to determine the steam usage based on the candidate target water supply temperature, indoor dew point and outdoor dew point before determining the steam cost based on the steam usage required for the dehumidifier to dehumidify the air treated by the candidate target water supply temperature and the steam unit price.

[0165] Optionally, the steam usage determination module is further used to: when the candidate target water supply temperature is greater than the outdoor dew point, determine the steam usage according to the difference between the outdoor dew point and the indoor dew point; when the candidate target water supply temperature is less than the outdoor dew point, determine the steam usage according to a first difference between the outdoor dew point and the candidate target water supply temperature, and a second difference between the outdoor dew point and the indoor dew point.

[0166] Optionally, the device also includes a steam usage prediction model training module, which is used to: before determining the steam usage based on the candidate target water supply temperature, indoor dew point and outdoor dew point, use the sample chilled water supply temperature, sample indoor dew point and sample outdoor dew point as input, and use the corresponding sample steam usage as the expected output to train a steam usage prediction model; in this way, the steam usage determination module is further used to: use the steam usage prediction model to determine the steam usage based on the difference between the outdoor dew point and the indoor dew point when the candidate target water supply temperature is greater than the outdoor dew point; and determine the steam usage based on a first difference between the outdoor dew point and the candidate target water supply temperature, and a second difference between the outdoor dew point and the indoor dew point when the chilled water supply temperature is less than the outdoor dew point.

[0167] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0168] Please refer to Figure 3 , Figure 3A structural diagram of an electronic device for executing a method for determining a chilled water supply temperature provided in an embodiment of the present application, the electronic device may include: at least one processor 301, such as a CPU, at least one communication interface 302, at least one memory 303 and at least one communication bus 304. Among them, the communication bus 304 is used to realize direct connection and communication between these components. Among them, the communication interface 302 of the device in the embodiment of the present application is used to communicate signaling or data with other node devices. The memory 303 can be a high-speed RAM memory or a non-volatile memory (non-volatile memory), such as at least one disk storage. The memory 303 can optionally also be at least one storage device located away from the aforementioned processor. Computer-readable instructions are stored in the memory 303. When the computer-readable instructions are executed by the processor 301, the electronic device can execute the above Figure 1 The method process is shown.

[0169] Understandably, Figure 3 The structure shown is for illustration only, and the electronic device may also include Figure 3 More or fewer components as shown, or with Figure 3 Different configurations are shown. Figure 3 Each component shown in the figure can be implemented by hardware, software or a combination thereof.

[0170] The present application embodiment provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the following can be performed: Figure 1 Any implementation method in the method embodiment shown.

[0171] An embodiment of the present application provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the methods provided by the above-mentioned method embodiments. For example, the method may include: determining a first upper limit of water supply temperature from a plurality of first candidate water supply temperatures for chilled water according to the front surface cooling and rear air outlet dew points corresponding to each of the plurality of first candidate water supply temperatures for chilled water; determining a second upper limit of water supply temperature from a plurality of second candidate water supply temperatures according to the dehumidifier supply air temperatures corresponding to each of the plurality of second candidate water supply temperatures for chilled water; determining the smaller of the first upper limit of water supply temperature and the second upper limit of water supply temperature as the target upper limit of water supply temperature for chilled water; and determining a water supply temperature that meets the refrigeration-dehumidification energy consumption requirement between the target upper limit of water supply temperature and the lower limit of water supply temperature as the target water supply temperature for chilled water.

[0172] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0173] In addition, the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0174] Furthermore, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0175] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0176] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining the supply temperature of chilled water, characterized in that: include: According to the front surface cooling rear air outlet dew points corresponding to the plurality of first candidate water supply temperatures of the chilled water, determining the first water supply temperature upper limit from the plurality of first candidate water supply temperatures; Determining a second water supply temperature upper limit from among the plurality of second candidate water supply temperatures for chilled water according to the dehumidifier supply air temperatures respectively corresponding to the plurality of second candidate water supply temperatures; Determine the smaller of the first upper water supply temperature limit and the second upper water supply temperature limit as the target upper water supply temperature limit for chilled water; Between the target water supply temperature upper limit and the water supply temperature lower limit, a water supply temperature that meets the refrigeration-dehumidification energy consumption requirement is determined as the target water supply temperature of the chilled water.

2. The method according to claim 1, characterized in that The step of determining the first upper limit of the water supply temperature from the plurality of first candidate water supply temperatures according to the respective corresponding front surface cooling rear air outlet dew points of the plurality of first candidate water supply temperatures of the chilled water comprises: For any first candidate water supply temperature among the plurality of first candidate water supply temperatures, determine the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature and the outdoor dew point; The first candidate water supply temperature corresponding to the front surface cooling rear air outlet dew point that is less than the dew point threshold is determined as the first water supply temperature upper limit.

3. The method according to claim 2, characterized in that The step of determining the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature and the outdoor dew point includes: When the first candidate water supply temperature is greater than a preset front surface cooling rear air outlet dew point threshold, the outdoor dew point is determined as the front surface cooling rear air outlet dew point; When the first candidate water supply temperature is lower than the preset front surface cooling air outlet dew point, the front surface cooling air outlet dew point corresponding to the first candidate water supply temperature is determined according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter; the first auxiliary parameter includes one or both of the front surface cooling valve opening and the air supply fan frequency.

4. The method according to claim 3, characterized in that When the first candidate water supply temperature is lower than the preset front surface cooling rear air outlet dew point, before determining the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter, the method further includes: Taking the first candidate sample water supply temperature, the sample outdoor dew point, and the first sample auxiliary parameter as input, and taking the corresponding sample front surface cooling rear air outlet dew point as the expected output, a front surface cooling rear air outlet dew point prediction model is trained; and The determining, when the first candidate water supply temperature is lower than the preset front surface cooling rear air outlet dew point, according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter, of the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature includes: By using the front-surface cooling air outlet dew point prediction model, when the first candidate water supply temperature is lower than the preset front-surface cooling air outlet dew point, the front-surface cooling air outlet dew point corresponding to the first candidate water supply temperature is determined according to the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter.

5. The method according to claim 1, characterized in that The step of determining the second upper limit of the water supply temperature from the plurality of second candidate water supply temperatures according to the dehumidifier supply air temperatures respectively corresponding to the plurality of second candidate water supply temperatures for chilled water comprises: For any second candidate water supply temperature among the plurality of second candidate water supply temperatures, determine the dehumidifier supply air temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature and the opening of the rear surface cooling valve; A second candidate water supply temperature corresponding to the supply air temperature that is less than the dehumidifier supply air temperature threshold is determined as the second water supply temperature upper limit.

6. The method according to claim 5, characterized in that Determining the dehumidifier supply air temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature and the opening of the rear surface cooling valve includes: The supply air temperature corresponding to the second candidate water supply temperature is determined according to the second candidate water supply temperature, the opening of the rear surface cooling valve and the second auxiliary parameter; the second auxiliary parameter includes one or more of the workshop temperature, the outdoor ambient temperature and the indoor dew point.

7. The method according to claim 6, characterized in that Before determining the supply air temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature, the opening of the rear surface cooling valve and the second auxiliary parameter, the method further includes: Taking the second candidate sample water supply temperature, the sample rear surface cooling valve opening, and the second sample auxiliary parameter as input, and the corresponding sample supply air temperature as the expected output, a supply air temperature prediction model is trained; and The step of determining the air supply temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature, the opening of the rear cooling valve and the second auxiliary parameter includes: The supply air temperature prediction model is used to determine the supply air temperature corresponding to the second candidate water supply temperature according to the second candidate water supply temperature, the opening of the rear surface cooling valve and the second auxiliary parameter.

8. The method according to any one of claims 1 to 7, characterized in that: Between the target water supply temperature upper limit and the water supply temperature lower limit, determining the water supply temperature that meets the refrigeration-dehumidification energy consumption requirement as the target water supply temperature of the chilled water, including: For candidate target water supply temperatures between the target water supply temperature upper limit and the target water supply temperature lower limit, determine the electricity cost according to the refrigeration power consumption required for the candidate target water supply temperatures and the unit price of electricity; determining the steam cost according to the steam consumption required by the dehumidifier to dehumidify the air treated at the candidate target water supply temperature and the unit price of steam; Determining a total cost corresponding to the candidate target water supply temperature according to the electricity cost and the steam cost; For a plurality of candidate target water supply temperatures between the target water supply temperature upper limit and the water supply temperature lower limit, a candidate target water supply temperature that meets the total cost requirement is determined as the target water supply temperature of the chilled water.

9. The method according to claim 8, characterized in that Before determining the electricity cost according to the refrigeration power consumption required for the candidate target water supply temperature and the unit price of electricity, the method further includes: Determining the cooling capacity of the refrigeration station according to the outdoor ambient temperature and the candidate target water supply temperature; The refrigeration power consumption is determined according to the outdoor ambient temperature and the refrigeration capacity of the refrigeration station.

10. The method according to claim 9, characterized in that The step of determining the refrigeration power consumption according to the outdoor ambient temperature and the refrigeration capacity of the refrigeration station comprises: The refrigeration power consumption is determined according to the outdoor environment temperature, the outdoor environment humidity, and the refrigeration capacity of the refrigeration station.

11. The method according to claim 10, characterized in that Before determining the refrigeration power consumption according to the outdoor environment temperature, the outdoor environment humidity, and the refrigeration capacity of the refrigeration station, the method further includes: Taking the sample outdoor environment temperature, the sample outdoor environment humidity, and the sample refrigeration station cooling capacity as inputs and the corresponding sample refrigeration power consumption as the expected output, a refrigeration power consumption prediction model is trained; and The step of determining the refrigeration power consumption according to the outdoor environment temperature, the outdoor environment humidity, and the refrigeration capacity of the refrigeration station includes: The refrigeration power consumption prediction model is used to determine the refrigeration power consumption according to the outdoor environment temperature, outdoor environment humidity, and the cooling capacity of the refrigeration station.

12. The method according to claim 9, characterized in that The step of determining the cooling capacity of the refrigeration station according to the outdoor ambient temperature and the candidate target water supply temperature includes: The cooling capacity of the refrigeration station is determined according to the outdoor ambient temperature, the candidate target water supply temperature and a third auxiliary parameter; the third auxiliary parameter includes one or more of the outdoor ambient humidity, the number of dehumidifiers in operation, and the indoor dew point.

13. The method according to claim 12, characterized in that Before determining the cooling capacity of the refrigeration station according to the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter, the method further includes: Taking the sample outdoor environment temperature, the sample candidate target water supply temperature and the third sample auxiliary parameter as inputs and the corresponding sample refrigeration station cooling capacity as the expected output, a refrigeration station cooling capacity prediction model is trained; and The step of determining the cooling capacity of the refrigeration station according to the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter includes: The cooling capacity of the refrigeration station is determined by using the refrigeration station cooling capacity prediction model according to the outdoor ambient temperature, the candidate target water supply temperature and the third auxiliary parameter.

14. The method according to claim 8, characterized in that Before determining the steam cost according to the steam consumption and the steam unit price required for the dehumidifier to dehumidify the air treated by the candidate target water supply temperature, the method further includes: The steam usage is determined according to the candidate target water supply temperature, the indoor dew point, and the outdoor dew point.

15. The method according to claim 14, characterized in that The step of determining the steam usage according to the candidate target water supply temperature, the indoor dew point, and the outdoor dew point includes: When the candidate target water supply temperature is greater than the outdoor dew point, determining the steam usage according to the difference between the outdoor dew point and the indoor dew point; When the candidate target water supply temperature is lower than the outdoor dew point, the steam usage is determined according to a first difference between the outdoor dew point and the candidate target water supply temperature and a second difference between the outdoor dew point and the indoor dew point.

16. The method according to claim 15, characterized in that Before determining the steam usage according to the candidate target water supply temperature, the indoor dew point, and the outdoor dew point, the method further includes: Taking the sample chilled water supply temperature, the sample indoor dew point and the sample outdoor dew point as inputs and the corresponding sample steam usage as expected outputs, a steam usage prediction model is trained; and The step of determining the steam usage according to the candidate target water supply temperature, the indoor dew point, and the outdoor dew point includes: Using the steam usage prediction model, when the candidate target water supply temperature is greater than the outdoor dew point, determining the steam usage according to the difference between the outdoor dew point and the indoor dew point; When the chilled water supply temperature is lower than the outdoor dew point, the steam usage is determined according to a first difference between the outdoor dew point and the candidate target supply temperature and a second difference between the outdoor dew point and the indoor dew point.

17. A device for determining the temperature of chilled water supply, characterized in that: include: A first water supply temperature upper limit determination module, configured to determine a first water supply temperature upper limit from a plurality of first candidate water supply temperatures according to the respective corresponding front surface cooling rear air outlet dew points of the plurality of first candidate water supply temperatures of the chilled water; A second water supply temperature upper limit determination module, configured to determine a second water supply temperature upper limit from a plurality of second candidate water supply temperatures for chilled water according to the dehumidifier supply air temperatures respectively corresponding to the plurality of second candidate water supply temperatures; a target water supply temperature upper limit determination module, configured to determine the smaller of the first water supply temperature upper limit and the second water supply temperature upper limit as the target water supply temperature upper limit of the chilled water; The target water supply temperature determination module is used to determine the water supply temperature that meets the refrigeration-dehumidification energy consumption requirement as the target water supply temperature of the chilled water between the target water supply temperature upper limit and the water supply temperature lower limit.

18. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the method according to any one of claims 1 to 16 is executed.

19. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 16 is performed.

20. A computer program product comprising a computer program or instructions, characterized in that When the computer program or instruction is executed by a processor, the method according to any one of claims 1 to 16 is performed.

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