Method, device and electronic equipment for determining chilled water supply temperature

Abstract

The present application provides a method, device, and electronic device for determining the chilled water supply temperature. A specific embodiment of the method includes: determining a first upper limit for the chilled water supply temperature from a plurality of first candidate chilled water supply temperatures based on the front surface cooling and rear air outlet dew points corresponding to each of the plurality of first candidate chilled water supply temperatures; determining a second upper limit for the chilled water supply temperature from a plurality of second candidate chilled water supply temperatures based on the dehumidifier supply air temperatures corresponding to each of the plurality of second candidate chilled water supply temperatures; determining the smaller of the first upper limit for the chilled water supply temperature and the second upper limit for the chilled water supply temperature as the target upper limit for the chilled water supply temperature; and determining, between the target upper limit for the chilled water supply temperature and the lower limit for the chilled water supply temperature, a water supply temperature that meets the chilling-dehumidification energy consumption requirements as the target chilled water supply temperature. Consequently, the target water supply temperature obtained by this method can meet the chilling-dehumidification energy consumption requirements 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] During the manufacturing process, appropriate air quality is crucial for ensuring product quality, improving production efficiency, and protecting employee health. For example, battery production requires air with the appropriate temperature and humidity to produce qualified products.

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

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

[0005] Furthermore, this common factor can be the chilled water supply temperature. That is, the chilled water supply temperature can affect both the chilled water system and the steam system's control process. Therefore, determining an appropriate chilled water supply temperature is crucial. Whether the chilled water supply temperature is appropriate not only depends on meeting the requirements for producing qualified products but also often on whether the chilled water at that temperature can meet energy consumption requirements.

[0006] In the related art, the chilled water temperature is often manually controlled by an operator, which makes it 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 a first aspect, embodiments of the present application provide a method for determining a chilled water supply temperature, comprising: determining a first upper limit for the chilled water supply temperature from a plurality of first candidate chilled water supply temperatures based on the front surface cooling and rear outlet air dew points corresponding to the respective first candidate chilled water supply temperatures; determining a second upper limit for the chilled water supply temperature from a plurality of second candidate chilled water supply temperatures based on the dehumidifier supply air temperatures corresponding to the respective second candidate chilled water supply temperatures; determining the smaller of the first upper limit for the chilled water supply temperature and the second upper limit for the chilled water supply temperature as the target upper limit for the chilled water supply temperature; and determining a water supply temperature between the target upper limit for the chilled water supply temperature and the lower limit for the chilled water supply temperature that meets the cooling-dehumidification energy consumption requirements as the target chilled water supply temperature. Thus, by first determining a target upper limit for the chilled water supply temperature that meets both the chilled water system control requirements and the steam system control requirements, a target water supply temperature between the target upper limit for the chilled water supply temperature and the lower limit for the chilled water supply temperature can be determined that meets both the cooling energy consumption requirements of the chilled water system and the dehumidification energy consumption requirements of the steam system, while ensuring that the air quality meets the requirements for battery production.

[0009] Optionally, determining the first upper limit of the first water supply temperature from among the plurality of first candidate chilled water supply temperatures based on the respective corresponding front surface cooling air outlet dew points includes: determining, for any first candidate chilled water supply temperature among the plurality of first candidate chilled water supply temperatures, the corresponding front surface cooling air outlet dew point based on the first candidate chilled water supply temperature and the outdoor dew point; and determining the first candidate chilled water supply temperature corresponding to the front surface cooling air outlet dew point that is less than a dew point threshold as the first upper limit of the first water supply temperature. In this way, a more appropriate front surface cooling 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, thereby improving the dehumidification effect while meeting 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 based on 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 based on the first candidate water supply temperature, the outdoor dew point, and a first auxiliary parameter; the first auxiliary parameter includes one or both 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 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.

[0011] Optionally, when the first candidate water supply temperature is lower than the preset front surface cooling outlet air dew point, before determining the front surface cooling outlet air 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 outlet air dew point as the expected output, to train a front surface cooling outlet air dew point prediction model; in this way, when the first candidate water supply temperature is lower than the preset front surface cooling outlet air dew point, determining the front surface cooling outlet air 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 outlet air dew point prediction model, when the first candidate water supply temperature is lower than the preset front surface cooling outlet air dew point, determining the front surface cooling outlet air 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 with 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, determining the second upper limit of the second water supply temperature from among the plurality of second candidate chilled water supply temperatures based on the dehumidifier supply air temperatures corresponding to each of the plurality of second candidate chilled water supply temperatures includes: for any second candidate chilled water supply temperature from the plurality of second candidate chilled water supply temperatures, determining the corresponding dehumidifier supply air temperature based on the second candidate chilled water supply temperature and the rear-surface cooling valve opening; and determining the second candidate chilled water supply temperature corresponding to the supply air temperature that is less than the dehumidifier supply air temperature threshold as the second upper limit of the second water supply temperature. In this way, a more appropriate dehumidifier supply air temperature can be determined in combination with the rear-surface cooling valve opening, thereby determining a more accurate upper limit of the second water supply temperature, thereby improving the dehumidification effect while meeting product production requirements.

[0013] Optionally, determining the dehumidifier supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature and the rear surface cooling valve opening includes determining the supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature, the rear surface cooling valve opening, and a second auxiliary parameter, wherein 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 in combination with one, two, or three of the workshop temperature, the outdoor ambient temperature, and the indoor dew point, taking into account the second candidate water supply temperature and the rear surface cooling valve opening, thereby improving the accuracy of the dehumidifier supply air temperature.

[0014] Optionally, before determining the supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature, the rear surface cooling valve opening, and the second auxiliary parameter, the method further includes: training a supply air temperature prediction model 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 desired output; thus, determining the supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature, the rear surface cooling valve opening, and the second auxiliary parameter includes: utilizing 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 rear surface cooling valve opening, and the second auxiliary parameter. In this way, 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, thereby obtaining a more accurate supply air temperature prediction model.

[0015] Optionally, determining a water supply temperature that meets the freezing-dehumidification energy consumption requirement between the target water supply temperature upper limit and the target water supply temperature lower limit as the target water supply temperature for chilled water includes: determining an electricity cost for candidate target water supply temperatures between the target water supply temperature upper limit and the target water supply temperature lower limit based on the chilling power consumption and unit price of the candidate target water supply temperatures; determining a steam cost based on the steam consumption and unit price of steam required by the dehumidifier to dehumidify air treated at the candidate target water supply temperature; determining a total cost corresponding to the candidate target water supply temperature based on the electricity cost and the steam cost; and determining, for multiple candidate target water supply temperatures between the target water supply temperature upper limit and the target water supply temperature lower limit, determining a candidate target water supply temperature that meets the total cost requirement as the target water supply temperature for chilled water. In this way, a target water supply temperature can be determined based on the total cost required for the chilled water system and the steam system. Subsequently, chilled water having this target water supply temperature can meet the freezing-dehumidification energy consumption requirement.

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

[0017] Optionally, 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. In this way, the refrigeration power consumption is comprehensively determined by combining the outdoor ambient temperature, outdoor ambient humidity, and the cooling capacity 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 based on the outdoor ambient temperature, outdoor ambient humidity, and refrigeration station cooling capacity, the method further includes: training a refrigeration power consumption prediction model using sample outdoor ambient temperature, sample outdoor ambient humidity, and sample refrigeration station cooling capacity as inputs and corresponding sample refrigeration power consumption as expected outputs; thus, determining the refrigeration power consumption based on the outdoor ambient temperature, outdoor ambient humidity, and refrigeration station cooling capacity includes: utilizing the refrigeration power consumption prediction model to determine the refrigeration power consumption based on the outdoor ambient temperature, outdoor ambient humidity, and refrigeration station cooling capacity. In this way, the refrigeration power consumption prediction model can be trained using relevant sample data, and the trained refrigeration power consumption prediction model can be applied to actual scenarios to obtain more accurate refrigeration power consumption, thereby improving the accuracy of the target water supply temperature to a certain extent.

[0019] Optionally, determining 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, wherein the third auxiliary parameter includes one or more of the following: outdoor ambient humidity, the number of operating dehumidifiers, and the indoor dew point. In this way, the cooling capacity of the refrigeration station can be comprehensively determined based on consideration of the outdoor ambient temperature and the candidate target water supply temperature, and then taking into account one, two, or three of the following: outdoor ambient humidity, the number of operating dehumidifiers, and the indoor dew point, thereby improving the accuracy of the cooling capacity of the refrigeration station and, to a certain extent, the accuracy of the target water supply temperature.

[0020] Optionally, 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, the method further includes: using the sample outdoor ambient temperature, the sample candidate target water supply temperature, and the third sample auxiliary parameter as input, and the corresponding sample refrigeration station cooling capacity as the expected output, to train a refrigeration station cooling capacity prediction model; thus, determining the refrigeration station cooling capacity based on the outdoor ambient temperature, the candidate target water supply temperature, and the third auxiliary parameter includes: using the refrigeration station cooling capacity prediction model to determine the refrigeration station cooling capacity based on the outdoor ambient temperature, the candidate target water supply temperature, and the third auxiliary parameter. In this way, 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, thereby obtaining a more accurate refrigeration station cooling capacity and, to a certain extent, improving the accuracy of the target water supply temperature.

[0021] Optionally, before determining the steam cost based on the steam consumption and unit price of steam required by the dehumidifier to dehumidify air treated at the candidate target water supply temperature, the method further includes determining the steam consumption based on the candidate target water supply temperature, the indoor dew point, and the outdoor dew point. In this way, a more accurate steam consumption can be determined by comprehensively considering the candidate target water supply temperature, the indoor dew point, and the outdoor dew point, thereby improving the accuracy of the target water supply temperature to a certain extent.

[0022] Optionally, determining the steam usage based on the candidate target water supply temperature, indoor dew point, and outdoor dew point includes: when the candidate target water supply temperature is greater than the outdoor dew point, determining the steam usage based on the difference between the outdoor dew point and the indoor dew point; and when the candidate target water supply temperature is less than the outdoor dew point, determining 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. In this way, by constructing a difference feature, the effect of temperature difference on steam usage can be determined, rather than simply the effect of temperature itself on steam usage. This improves the accuracy of steam usage and, to a certain extent, the accuracy of the target water supply temperature.

[0023] Optionally, before determining the steam usage based on the candidate target water supply temperature, indoor dew point, and outdoor dew point, the method further includes: training a steam usage prediction model using sample chilled water supply temperature, sample indoor dew point, and sample outdoor dew point as inputs and corresponding sample steam usage as expected outputs; thus, determining the steam usage based on 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 based on the difference between the outdoor dew point and the indoor dew point; and when the chilled water supply temperature is less than the outdoor dew point, determining 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. In this way, 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 a more accurate steam usage, thereby improving the accuracy of the target water supply temperature to a certain extent.

[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 based on 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 based on 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, it is then possible to determine, between the upper limit and the lower limit of the target water supply temperature, 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 ensure that the air quality meets 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. When the computer-readable instructions are executed by the processor, the steps in the method provided in the first aspect above are executed.

[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 executed.

[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, runs the method described in the first aspect.

[0028] Other features and advantages of the present application will be described in the following description and, in part, will become apparent from the description or be understood by practicing the embodiments of the present application. The objectives and other advantages of the present application can be achieved and obtained through the structures particularly 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 following is a brief introduction to the drawings required for use in the embodiments of the present application. 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 relevant drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A flow chart of a method for determining the chilled water supply temperature provided in an embodiment of the present application;

[0031] Figure 2 This is a structural block diagram of a device for determining the supply temperature of chilled water provided in an embodiment of the present application;

[0032] Figure 3 A schematic structural diagram of an electronic device for executing a method for determining the supply temperature of chilled water provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] 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 of the embodiments. The components of the embodiments of the present application generally 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 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 fall within the scope of protection of the present application.

[0034] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or 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 should not be understood as indicating or implying relative importance.

[0035] It should be noted that, unless there is any conflict, the embodiments in this application or the technical features in the embodiments may be combined.

[0036] To facilitate understanding, the chilled water system, surface cooler, and steam system are first explained.

[0037] Chilled water systems provide chilled water to lower the air temperature. If the chilled water temperature is low, more energy is consumed.

[0038] The front cooler uses chilled water from the chilled water system to lower the temperature of the air flowing through it. If the air temperature drops below the dew point, the moisture in the air condenses into water droplets. The lower the chilled water supply temperature, the lower the temperature and humidity of the air output by the front cooler. Furthermore, using dehumidifiers as a reference, front coolers can be divided into front coolers and rear coolers. The front cooler is located before the dehumidifier, while the rear cooler is located after the dehumidifier.

[0039] For steam systems, which include dehumidifiers, dehumidifiers consume steam during the dehumidification process. If the humidity of the air output from the front surface cooler is low, less steam is consumed; if the humidity of the air output from the front surface cooler is high, more steam is consumed.

[0040] 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.

[0041] Therefore, in related technologies, it is difficult to obtain a chilled water supply temperature that meets energy consumption requirements. To improve this situation, the present application provides a chilled water supply temperature determination method, device, and electronic device. Furthermore, by first determining a target water supply temperature upper limit that meets both the chilled water system control requirements and the steam system control requirements, and then determining a target water supply temperature that meets energy consumption requirements between the target water supply temperature upper limit and the target water supply temperature lower limit, it is easier to obtain a water supply temperature that meets energy consumption requirements.

[0042] It should be noted that the above-mentioned method for determining the chilled water supply temperature can be applied to terminal devices such as laptops and desktop computers, and can also be applied to server-side devices such as servers, server clusters, or cloud platforms, and this application does not impose any restrictions on this. For ease of description, this application will be described below using the server as an example.

[0043] The defects existing in the solutions in the above-mentioned related technologies are the results obtained by the inventors after practice and careful research. Therefore, the process of discovering 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 inventors to the present invention during the process of the invention.

[0044] 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.

[0045] Step 101, determining a first upper limit of the chilled water supply temperature from a plurality of first candidate chilled water supply temperatures according to their respective corresponding front surface cooling and rear air outlet dew points;

[0046] In some application scenarios, for example, a temperature range that meets product production requirements can be determined based on historical chilled water temperatures, and each water supply temperature within this 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 impose any restrictions on this.

[0047] The dew point of the air after the front surface cooler is the dew point of the air after the front surface cooler is treated. The dew point of the air represents the temperature at which water vapor in the air begins to condense into water droplets.

[0048] It should be noted that the front surface cooler uses 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.

[0049] In some application scenarios, for each first candidate water supply temperature, a corresponding front surface cooling rear air outlet dew point can be determined. Subsequently, multiple first candidate water supply temperatures can be screened based on the front surface cooling rear air outlet dew point to determine the first water supply temperature upper limit.

[0050] Step 102, determining a second upper limit of the chilled water supply temperature from a plurality of second candidate chilled water supply temperatures according to the dehumidifier supply air temperatures corresponding to the plurality of second candidate chilled water supply temperatures;

[0051] In some application scenarios, for example, a temperature range that meets product production requirements can be determined based on historical chilled water temperatures, and each water supply temperature within this temperature range can be determined as the second candidate water supply temperature. In other application scenarios, for example, each historical temperature can be determined as the second candidate water supply temperature. This application is not limited to this.

[0052] 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.

[0053] It should be noted that the dehumidifier's air supply temperature is closely linked to the chilled water supply temperature. Specifically, the lower the chilled water supply temperature, the lower the temperature of the dehumidifier's cooling coil, which in turn cools the air passing through it more effectively, leading to lower dehumidifier air supply temperature.

[0054] 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.

[0055] 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 for chilled water;

[0056] In this way, the chilled water supply temperature determined according to the target water supply temperature upper limit can meet the requirements of both the chilled water system and the steam system.

[0057] Step 104 : determining a water supply temperature that satisfies the freezing-dehumidification energy consumption requirement between the target water supply temperature upper limit and the target water supply temperature lower limit as the target water supply temperature of the chilled water.

[0058] 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 impose any restrictions on 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 no condensation occurs in the pipes or equipment at the end of the production line, and determine it 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°.

[0059] The aforementioned refrigeration-dehumidification energy consumption requirements are designed to balance the energy consumption requirements of both the chilled water system and the steam system. For example, this could include ensuring that the cooling cost of the chilled water system and the dehumidification cost of the steam system are within their respective budgets, or that the total cost of both is within the budget. Alternatively, the chilled water system meets cooling requirements while keeping the dehumidification energy consumption of the steam system within the budget.

[0060] In some application scenarios, for example, various temperature values ​​between the target water supply temperature upper limit and the water supply temperature lower limit can be traversed, and the water supply temperature that meets the freezing-dehumidification energy consumption requirement can be determined as the target water supply temperature.

[0061] In this implementation, 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, the target water supply temperature can be determined between the upper limit and the lower limit of the target water supply temperature to meet both the cooling energy consumption requirements of the chilled water system and the dehumidification energy consumption requirements of the steam system, and to ensure that the air quality meets the requirements for battery production.

[0062] In some optional implementations, the step 101 of determining the first upper limit of the chilled water supply temperature from the plurality of first candidate chilled water supply temperatures according to the respective corresponding front surface cooling and rear air outlet dew points includes:

[0063] 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;

[0064] 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.

[0065] If the chilled water supply temperature is low, the difference between the outlet dew point after front-side cooling and the outdoor dew point will be larger, resulting in more effective dehumidification. Therefore, by combining the outdoor dew point and the first candidate supply water temperature, a more suitable outlet dew point after front-side cooling can be determined, thereby achieving more effective dehumidification.

[0066] 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.

[0067] In sub-step 1012, a 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.

[0068] 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°.

[0069] Therefore, if the outlet dew point of a front-surface-cooled air is lower than the dew point threshold, the first candidate water supply temperature used to determine the outlet dew point of the front-surface-cooled air can be determined as the first water supply temperature upper limit.

[0070] Furthermore, if there are multiple front-surface cooling and rear-air outlet dew points below the dew point threshold, any one of the multiple first candidate water supply temperatures corresponding to these multiple front-surface cooling and rear-air outlet dew points can be determined as the first upper limit of the water supply temperature. Alternatively, the maximum value among the multiple first candidate water supply temperatures can be determined as the first upper limit of the water supply temperature, although this application does not impose any restrictions on this.

[0071] In this implementation, a more suitable front-surface cooling and rear-outlet air 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.

[0072] In some optional implementations, determining the front surface cooling rear air outlet dew point corresponding to the first candidate water supply temperature based on the first candidate water supply temperature and the outdoor dew point in sub-step 1011 includes:

[0073] First, when the first candidate water supply temperature is greater than a preset front surface cooling and rear air outlet dew point threshold, the outdoor dew point is determined as the front surface cooling and rear air outlet dew point;

[0074] The preset dew point threshold for the air outlet after the front surface cooling can be determined, for example, based on the dehumidification capacity of the surface cooling coil. For example, the dew point for the air outlet after the front surface cooling when the surface cooling coil has no dehumidification capacity or has a low dehumidification capacity can be determined as the preset dew point threshold for the air outlet after the front surface cooling.

[0075] 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 has no 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.

[0076] 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 both of the front surface cooling valve opening and the air supply fan frequency.

[0077] The opening degree of the front surface cooler valve can reflect the opening degree of the valve for controlling the air of the front surface cooler, thereby affecting the air quality during product production.

[0078] The above-mentioned air supply fan frequency can affect the speed of air flow, thereby affecting the amount of air entering the factory workshop.

[0079] 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 can be considered 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.

[0080] In this implementation, the corresponding front surface cooling 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 air outlet dew point threshold, thereby improving the accuracy of the front surface cooling air outlet dew point while meeting product production requirements.

[0081] 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 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 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.

[0082] 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 front surface cooling rear air outlet dew point.

[0083] In other application scenarios, for example, the front surface cooling rear air outlet dew point can be determined using a front surface cooling rear air outlet dew point prediction model. Subsequently, 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 based on the first candidate water supply temperature, the outdoor dew point, and the first auxiliary parameter, the method further includes: using the first candidate sample water supply temperature, the sample outdoor dew point, and the first sample auxiliary parameter as inputs, 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.

[0084] 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.

[0085] Furthermore, when training the front-surface cooling and rear-outlet airflow 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-outlet airflow prediction model, and the sample data in the test set is used to test the prediction ability of the front-surface cooling and rear-outlet airflow prediction model.

[0086] Furthermore, when training the front surface cooling outlet air 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, supply air fan frequency, and front surface cooling outlet air dew point:

[0087] ;in, The intercept representing the linear relationship; 、 、 、 Characterization 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.

[0088] Furthermore, during the training process, for example, the least squares method can be used to estimate the model parameters of the front surface cooling and rear outlet air dew point prediction model (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 minimized, it can be determined that the front surface cooling rear air outlet dew point prediction model has converged.

[0089] 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, by determining R 2 (coefficient of determination), adjusted R 2 The goodness of fit of the front-surface cooling outlet air dew point prediction model is evaluated using indicators such as the adjusted coefficient of determination and the F statistic. If the model meets the evaluation requirements, the front-surface cooling outlet air dew point prediction model can be used in actual scenarios.

[0090] Then, 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 based on 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.

[0091] In this implementation method, the front surface cooling and rear air outlet dew point prediction model can be trained using 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.

[0092] In some optional implementations, the step 102 of determining the second upper limit of the chilled water supply temperature from the plurality of second candidate chilled water supply temperatures according to the dehumidifier supply air temperatures corresponding to the plurality of second candidate chilled water supply temperatures includes:

[0093] 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;

[0094] The opening degree of the rear-surface cooling valve affects the chilled water flow through the rear-surface cooling unit, and thus the dehumidifier's air supply temperature. A wider opening and a greater chilled water flow rate result in lower dehumidifier air supply temperature. Conversely, a smaller opening and a smaller chilled water flow rate result in higher dehumidifier air supply temperature.

[0095] 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.

[0096] In sub-step 1022, a second candidate water supply temperature corresponding to the air supply temperature that is less than the dehumidifier air supply temperature threshold is determined as the second water supply temperature upper limit.

[0097] The 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°.

[0098] 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.

[0099] 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, although this application does not impose any restrictions on this.

[0100] In this implementation, a more suitable dehumidifier air supply temperature can be determined in combination with the rear surface cooling valve opening, thereby determining a more accurate second water supply temperature upper limit, so as to improve the dehumidification effect while meeting product production requirements.

[0101] 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, outdoor ambient temperature, and indoor dew point.

[0102] Dehumidifiers can adjust their air supply temperature based on the workshop temperature to achieve optimal dehumidification. A higher workshop temperature may result in a lower dehumidifier air supply temperature. Conversely, a lower workshop temperature may result in a higher dehumidifier air supply temperature. Therefore, workshop temperature can affect the dehumidifier's air supply temperature.

[0103] When the outdoor ambient temperature is high, the dehumidifier may adjust the air supply temperature to a lower level in order to fully dehumidify the air. Conversely, when the outdoor ambient temperature is low, the dehumidifier may appropriately increase its air supply temperature. Therefore, the outdoor ambient temperature can affect the dehumidifier's air supply temperature.

[0104] When the indoor dew point is high, the dehumidifier supply air temperature can be lowered to achieve effective dehumidification; when the indoor dew point is low, the dehumidifier supply air temperature can be slightly higher to reduce unnecessary cooling. Therefore, the indoor dew point can affect the dehumidifier supply air temperature.

[0105] Therefore, in this implementation method, 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 surface cooling valve, and then one, two or three of the workshop temperature, outdoor ambient temperature and indoor dew point to improve the accuracy of the dehumidifier supply air temperature.

[0106] 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, and 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.

[0107] In other application scenarios, for example, the dehumidifier supply air temperature can be determined using a supply air temperature prediction model. Subsequently, in some optional implementations, before determining the supply air temperature corresponding to the second candidate water supply temperature based on the second candidate water supply temperature, the rear surface cooling valve opening, and the second auxiliary parameter, the method further includes: training a supply air temperature prediction model 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;

[0108] 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 supply air 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.

[0109] In some application scenarios, for example, a spline function can be used to build a supply air temperature prediction model. Specifically, a quadratic spline function can be selected to capture how factors such as the second candidate sample water supply temperature, the opening of the surface cooling valve after the sample, and the auxiliary parameters of the second sample jointly affect the dehumidifier supply air temperature.

[0110] Furthermore, during the training of the supply air temperature prediction model, for example, the least squares method can be used to estimate relevant model parameters. Furthermore, the supply air temperature prediction model can be determined to have converged when the loss between the output dehumidifier supply air temperature and the sample supply air temperature is minimized. Furthermore, for example, an L2 regularization term can be added to the spline function to prevent overfitting of the supply air temperature prediction model.

[0111] 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.

[0112] 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, thereby obtaining a more accurate supply air temperature prediction model.

[0113] In some optional implementations, the step 104 described above of determining the target supply water temperature of the chilled water as the target supply water temperature between the target supply water temperature upper limit and the target supply water temperature lower limit, wherein the target supply water temperature satisfies the freezing-dehumidification energy consumption requirement, includes:

[0114] Sub-step 1041, 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 based on the refrigeration power consumption required for the candidate target water supply temperatures and the unit price of electricity;

[0115] For chilled water systems, electricity is required to heat the chilled water to the target supply temperature. Therefore, the electricity cost can be determined by combining the required chilled water consumption and the unit price of electricity. Specifically, the electricity cost can be determined as the product of the chilled water consumption and the unit price of electricity.

[0116] Sub-step 1042 , determining the steam cost based on the steam consumption required by the dehumidifier to dehumidify the air after being treated at the candidate target water supply temperature and the steam unit price;

[0117] For steam systems, dehumidifiers use steam to dehumidify the air. Therefore, the steam cost can be determined by combining the required steam usage and the unit price of steam. Specifically, the steam cost can be determined as the product of the steam usage and the unit price of steam.

[0118] Sub-step 1043 , determining a total cost corresponding to the candidate target water supply temperature based on the electricity cost and the steam cost;

[0119] In other words, the electricity cost and steam cost can be added together to get the corresponding total cost.

[0120] Sub-step 1044 , for multiple candidate target water supply temperatures between the target water supply temperature upper limit and the target 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.

[0121] 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 restrictions on this.

[0122] 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 the corresponding data can be obtained from set A and set B respectively during time period b. 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, continue to obtain the corresponding data from set A and 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.

[0123] In this implementation, a target water supply temperature can be determined based on the total cost of the chilled water system and the steam system, and the chilled water having the target water supply temperature can then meet the freezing-dehumidification energy consumption requirement.

[0124] 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 step 1041, the method further includes:

[0125] First, the cooling capacity of the refrigeration station is determined according to the outdoor ambient temperature and the candidate target water supply temperature;

[0126] In some application scenarios, when the outdoor ambient temperature rises, the indoor cooling load typically also increases, so the refrigeration station needs to provide more cooling capacity to reduce the air temperature. Therefore, the outdoor ambient temperature and the candidate target water supply temperature can be combined to determine the cooling capacity of the refrigeration station.

[0127] 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.

[0128] Then, the refrigeration power consumption is determined according to the outdoor ambient temperature and the cooling capacity of the refrigeration station.

[0129] In other words, the outdoor ambient temperature also affects the power consumption of the chiller. Specifically, when the indoor cooling load increases due to the outdoor ambient temperature, the chilled water system requires more power to output chilled water at a lower temperature.

[0130] Furthermore, the cooling capacity of the refrigeration station can reflect the size of the cooling load that needs to be handled. 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.

[0131] 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.

[0132] 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, thereby improving the accuracy of the target water supply temperature to a certain extent.

[0133] In some optional implementations, the above-mentioned determination of 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.

[0134] The outdoor humidity reflects the moisture content in the air. To meet production requirements, the chilled water system must output chilled water at the corresponding temperature for dehumidification, which affects the power consumption of the chiller.

[0135] 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.

[0136] 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 based on the outdoor ambient temperature, the outdoor ambient humidity, and the refrigeration station cooling capacity, the method further includes: using the sample outdoor ambient temperature, the sample outdoor ambient humidity, and the 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;

[0137] 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.

[0138] 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, Characterizes the energy efficiency ratio COP (Coefficient of Performance) of the refrigeration station, Characterizes the power consumption of refrigeration, Indicates 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 each sample data to determine the model parameters and obtain the converged refrigeration power consumption prediction model.

[0139] Then, the refrigeration power consumption prediction model may be used to determine the refrigeration power consumption according to the outdoor ambient temperature, outdoor ambient humidity, and the cooling capacity of the refrigeration station.

[0140] 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.

[0141] 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.

[0142] In some applications, high outdoor humidity means high moisture content in the air. This means that the high-humidity air needs to be treated to a lower humidity level before entering the refrigeration plant. This means that the refrigeration plant must handle not only the sensible heat of the air but also the latent heat. Consequently, high outdoor humidity increases the total heat load of the refrigeration plant, potentially requiring more cooling capacity. Therefore, outdoor humidity can affect the cooling capacity of the refrigeration plant.

[0143] 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.

[0144] To prevent moisture from condensing inside the refrigeration station or at the terminal equipment, the cooling water temperature provided by the refrigeration station must be lower than the indoor dew point. If the indoor dew point is higher, the refrigeration station must provide cooling water at a lower temperature. Consequently, the indoor dew point also affects the cooling capacity of the refrigeration station.

[0145] 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, improve the accuracy of the target water supply temperature.

[0146] 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.

[0147] In other application scenarios, for example, the cooling capacity of a refrigeration station can be determined using a refrigeration station cooling capacity prediction model. Subsequently, in some optional implementations, 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, the method further includes: training a refrigeration station cooling capacity prediction model using the sample outdoor ambient temperature, the sample candidate target water supply temperature, and the third auxiliary parameter as inputs and the corresponding sample refrigeration station cooling capacity as the expected output;

[0148] 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.

[0149] 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.

[0150] 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.

[0151] In this implementation method, 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, thereby obtaining a more accurate refrigeration station cooling capacity, and to a certain extent, improving the accuracy of the target water supply temperature.

[0152] In some optional implementations, before determining the steam cost based on the steam usage 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 further includes: determining the steam usage based on the candidate target water supply temperature, the indoor dew point, and the outdoor dew point.

[0153] In some application scenarios, a lower target water supply temperature indicates greater cooling capacity, allowing the air entering the dehumidifier to be cooled to a lower temperature, making it easier for moisture to condense into droplets. This makes it easier for the dehumidifier to dehumidify, thus reducing steam usage. Conversely, a higher target water supply temperature indicates weaker cooling capacity, making it more difficult for the air entering the dehumidifier to condense into droplets, making it more difficult for the dehumidifier to dehumidify, and thus increasing steam usage. Therefore, the target water supply temperature can affect steam usage.

[0154] The higher the indoor dew point, the more moisture the dehumidifier needs to remove, and the more steam it will use. Conversely, the lower the indoor dew point, the less moisture the dehumidifier needs to remove, and the less steam it will use. Therefore, the indoor dew point can affect steam usage.

[0155] The higher the outdoor dew point, the higher the humidity of the air entering the room, the more moisture the dehumidifier needs to process, and the more steam it will need. Conversely, the lower the outdoor dew point, the lower the humidity of the air entering the room, the less moisture the dehumidifier needs to process, and the less steam it will need. Therefore, the outdoor dew point can affect steam usage.

[0156] 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.

[0157] In some optional implementations, determining the steam usage based on the candidate target water supply temperature, the indoor dew point, and the outdoor dew point includes:

[0158] 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;

[0159] When the target water supply temperature is greater than the outdoor dew point, the dehumidification capacity of the chilled water is weak, and the target water supply temperature has little impact on steam usage. In this case, the steam usage can be determined based on the difference between the outdoor and indoor dew points.

[0160] In some application scenarios, if there are multiple workshops, each with a corresponding number of dehumidifiers, the average indoor dew point for each workshop can be determined, and the steam usage can be determined based on the difference between the outdoor dew point and the average indoor dew point. Furthermore, the quotient of the sum of the workshop dew points and the total dehumidifier capacity can be used to determine the average indoor dew point.

[0161] 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 usage.

[0162] 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.

[0163] When the target water supply temperature is lower than the outdoor dew point, the chilled water has a certain dehumidification capacity, which can reduce the load on the steam system and significantly affect steam usage. In this case, the steam usage can be determined based on the first difference between the outdoor dew point and the target water supply temperature, and the second difference between the outdoor dew point and the indoor dew point.

[0164] In this implementation, the difference between the outdoor dew point and the indoor dew point, the first difference, or the second difference affects steam usage. By constructing a difference feature, the impact of temperature differences on steam usage can be determined, rather than simply the impact of temperature itself. This improves the accuracy of steam usage and, to a certain extent, the target water supply temperature.

[0165] In some application scenarios, steam usage can be determined using a steam usage prediction model. Subsequently, in some optional implementations, before determining the steam usage based on the candidate target water supply temperature, indoor dew point, and outdoor dew point, the method further includes: training a steam usage prediction model using sample chilled water supply temperature, sample indoor dew point, and sample outdoor dew point as inputs and corresponding sample steam usage as expected outputs;

[0166] In some application scenarios, for example, corresponding weight coefficients and correction terms can be assigned to the sample difference between the outdoor dew point and the indoor dew point, the first sample difference between the outdoor dew point and the candidate target water supply temperature, and the second sample difference between the outdoor dew point and the indoor dew point, thereby constructing an initial steam usage prediction model. This initial steam usage prediction model can then be trained using multiple sets of sample data to determine the specific data for the corresponding weight coefficients and correction terms, resulting in a trained steam usage prediction model.

[0167] 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.

[0168] 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.

[0169] It should be noted that, for each of the above prediction models, when relevant sample data are used for training, the sample data may be screened to eliminate abnormal data.

[0170] 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 with that COP can be eliminated.

[0171] Screening method 2: Screening based on time series stability. For example, when the water supply temperature of a chiller station in the system changes, the temperature of the chilled water entering the surface cooling coil does not change immediately. Therefore, relevant sample data with significant changes in the variable can be eliminated. Furthermore, for example, boxplot analysis can be used for elimination. Alternatively, the median data within a preset time period can be determined first. If a data point significantly exceeds the median, it can be eliminated.

[0172] Screening method three: Screening based on data correlation. For example, the cooling capacity of a refrigeration station is correlated with its electricity consumption. If the cooling capacity of a refrigeration station is high while its electricity consumption is low, the relevant sample data can be eliminated.

[0173] Those skilled in the art will understand that, in the above-mentioned method of a specific embodiment, the writing order of each step does not mean a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0174] Please refer to Figure 2 , which shows a structural block diagram of a chilled water supply temperature determination device provided by an embodiment of the present application. The chilled water supply temperature determination device can be a module, program segment or 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 the embodiment that can be executed Figure 1 The various steps involved in the method embodiment.

[0175] Optionally, the 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 configured to determine a first water supply temperature upper limit from a plurality of first candidate chilled water supply temperatures based on the front surface cooling and rear air outlet dew points corresponding to the respective first candidate chilled water supply temperatures; the second water supply temperature upper limit determination module 202 is configured to determine a second water supply temperature upper limit from a plurality of second candidate chilled water supply temperatures based on the dehumidifier supply air temperatures corresponding to the respective second candidate chilled water supply temperatures; the target water supply temperature upper limit determination module 203 is 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 for the chilled water; and the target water supply temperature determination module 204 is configured to determine a water supply temperature between the target water supply temperature upper limit and the water supply temperature lower limit that meets the freezing-dehumidification energy consumption requirement as the target water supply temperature for the chilled water.

[0176] 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 based on 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.

[0177] 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 the 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 the first auxiliary parameter; the first auxiliary parameter includes one or two of the front surface cooling valve opening and the supply air fan frequency.

[0178] Optionally, the device also includes a front surface cooling air outlet dew point prediction model training module, which is used to: when the first candidate water supply temperature is lower 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, train a front surface cooling air outlet dew point prediction model with the first candidate sample water supply temperature, the sample outdoor dew point and the first sample auxiliary parameter as input and the corresponding sample front surface cooling air outlet dew point as the expected output; in this way, the first water supply temperature upper limit determination module 201 is further used to: use 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, 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.

[0179] 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.

[0180] Optionally, the second water supply temperature upper limit determination module 202 is further used 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; the second auxiliary parameter includes one or more of the workshop temperature, outdoor ambient temperature and indoor dew point.

[0181] 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 rear surface cooling valve opening and the second auxiliary parameter, use the second candidate sample water supply temperature, the sample rear surface cooling valve opening, 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 rear surface cooling valve opening and the second auxiliary parameter.

[0182] 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 target water supply temperature lower limit based on the refrigeration power consumption and the unit price of electricity required for the candidate target water supply temperature; 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; for multiple candidate target water supply temperatures between the target water supply temperature upper limit and the target 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.

[0183] 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.

[0184] 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.

[0185] 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 refrigeration station cooling capacity, use the sample outdoor ambient temperature, sample outdoor ambient humidity, and sample refrigeration station cooling capacity as input, and use the corresponding sample refrigeration power consumption as the expected output 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 refrigeration station cooling capacity.

[0186] 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.

[0187] 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.

[0188] 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.

[0189] 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 based on 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 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.

[0190] 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 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.

[0191] 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.

[0192] Please refer to Figure 3 , Figure 3A structural diagram of an electronic device for executing a method for determining the 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, such as at least one disk memory. 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-mentioned Figure 1 The method process shown.

[0193] I understand. Figure 3 The structure shown is only for illustration, and the electronic device may also include Figure 3 More or fewer components than shown, or with Figure 3 Different configurations shown. Figure 3 Each component shown in the figure can be implemented by hardware, software or a combination thereof.

[0194] The embodiment of the present application 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 of the method embodiment shown.

[0195] 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, the computer program including program instructions. When the program instructions are executed by a computer, the computer can perform the methods provided by the above-mentioned method embodiments. For example, the method may include: determining a first water supply temperature upper limit from a plurality of first candidate water supply temperatures for chilled water based on the front surface cooling and rear air outlet dew points corresponding to the respective first candidate water supply temperatures for chilled water; determining a second water supply temperature upper limit from a plurality of second candidate water supply temperatures based on the dehumidifier supply air temperatures corresponding to the respective second candidate water supply temperatures for chilled water; 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; and determining, between the target water supply temperature upper limit and the water supply temperature lower limit, a water supply temperature that meets the freezing-dehumidification energy consumption requirement as the target water supply temperature for chilled water.

[0196] In the embodiments provided in this 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 interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0197] In addition, the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across 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.

[0198] Furthermore, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0199] 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 actual relationship or order between these entities or operations.

[0200] The above description is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

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

2. The method according to claim 1, characterized in that The step of determining the first upper limit of the chilled water supply temperature from the plurality of first candidate chilled water supply temperatures according to the respective corresponding front surface cooling and rear air outlet dew points of the plurality of first candidate chilled water supply temperatures includes: 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; A 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 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 includes: When the first candidate water supply temperature is greater than a preset front surface cooling and rear air outlet dew point threshold, the outdoor dew point is determined as the front surface cooling and 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 based on the first candidate water supply temperature, the outdoor dew point and a 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 based on 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 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 When the first candidate water supply temperature is lower 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 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 based on the first candidate water supply temperature, the outdoor dew point and the first auxiliary parameter.

5. The method according to claim 1, wherein 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 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, 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; 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 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 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: Using 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 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 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 Determining a target water supply temperature of the chilled water that satisfies the freezing-dehumidification energy consumption requirement between the target water supply temperature upper limit and the target water supply temperature lower limit as the target water supply temperature of the chilled water includes: 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 based on the refrigeration power consumption required for the candidate target water supply temperatures and the unit price of electricity; determining a steam cost based on the steam consumption required by the dehumidifier to dehumidify the air after being 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 based on 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 target 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 based on 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 cooling capacity of the refrigeration station.

10. The method according to claim 9, characterized in that The determining of the refrigeration power consumption according to the outdoor ambient temperature and the refrigeration capacity of the refrigeration station includes: The refrigeration power consumption is determined according to the outdoor ambient temperature, outdoor ambient humidity, and the cooling 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 ambient temperature, the outdoor ambient humidity, and the refrigeration station cooling capacity, the method further includes: Using 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 the expected output, a refrigeration power consumption prediction model is trained; and The determining of the refrigeration power consumption according to the outdoor ambient temperature, the outdoor ambient 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 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.

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: Using the sample outdoor ambient temperature, the sample candidate target water supply temperature, and the third sample auxiliary parameter as input, 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 based on the steam consumption and the steam unit price required by the dehumidifier to dehumidify the air treated at 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: A steam usage prediction model is trained using sample chilled water supply temperature, sample indoor dew point, and sample outdoor dew point as inputs and corresponding sample steam usage as expected outputs; 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: Determining the steam usage according to the difference between the outdoor dew point and the indoor dew point using the steam usage prediction model when the candidate target water supply temperature is greater than the outdoor 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 water 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 for chilled water according to respective corresponding front surface cooling rear air outlet dew points; a second water supply temperature upper limit determining 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 corresponding to the plurality of second candidate water supply temperatures; a target water supply temperature upper limit determining 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; A target water supply temperature determination module is used to determine the water supply temperature that meets the freezing-dehumidification energy consumption requirements 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; wherein the freezing-dehumidification energy consumption requirements represent the cooling energy consumption requirements of the chilled water system and the dehumidification energy consumption requirements of the dehumidifier steam system.

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 executed.

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 executed.

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