Cooling control method and cooling system

Abstract

The invention discloses a cooling control method and a cooling system, and relates to the technical field of financial science and technology. The method comprises the following steps: in response to a power utilization request of power utilization equipment, obtaining a parameter control curve of each cooling equipment in a cooling system corresponding to a power distribution station for carrying out power allocation on the power utilization equipment; wherein cold sources of the cooling system comprise a mechanical cold source and a natural cold source; obtaining an available time range of the natural cold source in the area where the power distribution station is located; determining a wet bulb temperature critical value of the power distribution station according to the equipment working parameters of the cooling equipment; within the available time range, according to the real-time temperature of the natural cold source and the wet bulb temperature critical value, a cold source distribution working mode of the cooling system is determined; and controlling a cooling system to cool the power distribution station according to the cold source distribution working mode and the parameter control curve. According to the technical scheme, energy waste can be effectively reduced, and the energy use efficiency of heat dissipation and cooling of the power distribution station is improved.

Description

Technical Field

[0001] The present application relates to the field of financial technology, and in particular to a cooling control method and a cooling system. Background Art

[0002] With social changes and the advancement of science and technology, more and more new devices have emerged, often powered by electricity. This increase in electrical devices inevitably places higher demands on the power distribution facilities within the power system. Bearing the increased burden of power distribution also generates significant heat. Large distribution stations are increasingly connected to external electrical devices, and sudden power consumption by these devices can lead to a sudden increase in distribution load, placing increasingly stringent requirements on the distribution station's heat dissipation.

[0003] Currently, large-scale power distribution stations mainly use a method of continuously turning on the heat dissipation equipment to dissipate heat. However, the heat dissipation equipment also requires electricity to drive. Continuously turning on the heat dissipation equipment also wastes a lot of electricity resources, resulting in low energy efficiency for heat dissipation and cooling of the power distribution station. Summary of the Invention

[0004] The present application provides a cooling control method and a cooling system to reduce energy waste and improve cooling energy efficiency.

[0005] According to one aspect of the present application, a cooling control method is provided, comprising:

[0006] In response to a power request from an electrical device, obtaining a parameter control curve for each cooling device in a cooling system corresponding to a power distribution station that distributes power to the electrical device; wherein the cooling source of the cooling system includes a mechanical cooling source and a natural cooling source;

[0007] Obtain the time range during which the natural cooling source is available in the area where the power distribution station is located;

[0008] Determine the critical wet-bulb temperature of the distribution station based on the operating parameters of each cooling device;

[0009] Within the available time range, the cooling system's cold source allocation working mode is determined based on the real-time temperature of the natural cold source and the critical wet-bulb temperature;

[0010] According to the cold source distribution working mode and parameter control curve, the cooling system is controlled to cool the distribution station.

[0011] According to another aspect of the present application, a cooling system is provided, comprising a first cooling circuit, a second cooling circuit, a mechanical cooling source facility, and a cooling control device; wherein,

[0012] The first cooling circuit is composed of a cooling terminal, a first water pump, a first valve, and a second water pump connected in series through a cooling pipe;

[0013] The second cooling circuit consists of a cooling terminal, a first water pump, a natural cooling source facility, a second valve and a second water pump connected in series through a cooling pipe;

[0014] Target piping contact setup between the mechanical cooling source facility and the cooling terminal and the second water pump;

[0015] The cooling control device is respectively connected to the first water pump, the second water pump, the first valve, the second valve, the mechanical cooling source facility and the natural cooling source facility;

[0016] The cooling control device is used to implement the cooling control method described in any embodiment of the present application.

[0017] According to another aspect of the present application, an electronic device is provided, comprising:

[0018] at least one processor; and

[0019] a memory communicatively connected to the at least one processor; wherein,

[0020] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the cooling control method described in any embodiment of the present application.

[0021] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the cooling control method described in any embodiment of the present application when executed.

[0022] According to another aspect of the present application, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the cooling control method according to any embodiment of the present application.

[0023] The technical solution of the embodiment of the present application can determine the usage mode of the natural cooling source within the time range where the natural cooling source can be used, thereby solving the high energy consumption caused by the existing technology that can only be cooled by mechanical cooling sources. While reducing the energy consumption of mechanical cooling sources, it also improves the energy utilization efficiency of heat dissipation and cooling.

[0024] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a flow chart of a cooling control method provided according to Example 1 of the present application;

[0027] Figure 2 This is a schematic structural diagram of a cooling control device provided according to the second embodiment of the present application;

[0028] Figure 3A This is a schematic structural diagram of a cooling system provided according to the third embodiment of the present application;

[0029] Figure 3B This is a schematic structural diagram of a cooling system provided according to the third embodiment of the present application;

[0030] Figure 3C This is a schematic structural diagram of a cooling system provided according to the third embodiment of the present application;

[0031] Figure 4 Schematic diagram of the structure of an electronic device that implements the cooling control method of an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] Example 1

[0035] Figure 1 A flowchart of a cooling control method is provided for the first embodiment of the present application. This embodiment is applicable to the case of cooling a large power distribution station. The method can be executed by a cooling control device, which can be implemented in the form of hardware and / or software. The cooling control device can be configured in an electronic device, which is configured with the cooling control device and can be set in a cooling system. It should be noted that the various embodiments and implementation methods of the present application are intended to solve the cooling problem of large power distribution stations. The power distribution station provides power distribution to large power facilities, and a large amount of heat is generated in the process. Therefore, providing cooling services for the power distribution station has become one of the research focuses of technical personnel in related fields. The various embodiments and implementation methods of the present application will take the banking scenario as an example. At this stage, banks have a large number of power-consuming units and facilities, such as the bank's data center. These power-consuming units and equipment need to be supplied with power by large power distribution stations, such as the use of 10KV power distribution stations. Cooling these large power distribution stations is of positive significance.

[0036] like Figure 1 As shown, the method includes:

[0037] S110. In response to a power request from an electrical device, obtain a parameter control curve for each cooling device in a cooling system corresponding to a power distribution station that distributes power to the electrical device; wherein the cooling source of the cooling system includes a mechanical cooling source and a natural cooling source.

[0038] The power-consuming devices may be devices that require power distribution from a distribution station, such as various power-consuming facilities or equipment in a bank's data center. A power request may be a request for power sent by the power-consuming device to the distribution station. It is understood that upon receiving the power request from the power-consuming device, the distribution station must distribute and deliver power to the power-consuming device. Therefore, while receiving the power request from the power-consuming device, it is also necessary to consider heat dissipation and cooling for the power-distributing facilities and equipment within the distribution station. A distribution station has its own dedicated cooling system, which can be either air-cooled or water-cooled. The cooling equipment may be the various devices that comprise the cooling system. Therefore, during operation, the cooling equipment requires operating parameters to be set so that it can perform cooling-related functions according to the parameters. The functions of all devices operate and coordinate with each other to provide cooling services for the distribution station. It is understood that a parameter control curve can be a curve that shows how the operating parameters of the cooling equipment change as the power consumption and power consumption of the power-consuming device change. Controlling the cooling equipment according to this parameter curve can effectively respond to changes in the power demand of the power-consuming device. The cooling system includes a cold source for exchanging heat with the power distribution station, thereby cooling the power distribution station. The cooling system involved in this application includes two types of cold sources: a mechanical cold source and a natural cold source. These two sources can cool the power distribution station simultaneously or separately. This is not a limitation in the embodiments of this application.

[0039] It is understandable that after obtaining the power request sent by the power-consuming device, the parameter control curve for controlling each cooling device in the cooling system is first obtained. It is understandable that there can be multiple parameter control curves, and different cooling devices can correspond to different parameter control curves. The parameter control curve can be pre-set by technicians in the relevant field according to actual conditions, or it can be re-generated through a pre-trained machine learning model based on real-time changes in power demand. The embodiment of the present application does not limit the method of obtaining the parameter control curve.

[0040] S120. Obtain a time range in which the natural cooling source is available in the area where the power distribution station is located.

[0041] It should be noted that a mechanical cold source is a cold source that is driven by energy such as electricity and provides cooling for the distribution station, such as air conditioning; while a natural cold source can be a cold source that directly provides cooling for the distribution station through natural resources, such as air and water. The method of the present application aims to use a natural cold source to assist in cooling the distribution station, thereby reducing the time or frequency of turning on the mechanical cold source, so as to reduce the energy consumption caused by using the mechanical cold source for cooling. Therefore, it is particularly important to confirm the time when the natural cold source can be used to assist in cooling. It is understandable that the natural cold source is affected by geography and climate. The available natural cold sources in different regions are different, and the seasons in which the natural cold source can be used are different.

[0042] Therefore, the available time range can be defined as the time period during which the locally available natural cooling source in the area where the substation is located can provide cooling for the substation. For example, if a substation uses air as a natural cooling source, then there will be a greater available time range during seasons prone to cold air, such as spring, autumn, and winter. Conversely, during prolonged periods of hot summer temperatures, there will be less available time for air-assisted cooling.

[0043] In this application, cooling is provided for a distribution station. The distribution station itself is built in a fixed location, and its geographical environment and climatic factors are relatively fixed. Therefore, relevant technicians can predetermine the time range in which the local natural cooling source can be used to assist cooling based on the local geographical environment and climatic factors, which is also known as the available time range. When this time range data is needed, it can be directly obtained and used.

[0044] S130. Determine a critical wet-bulb temperature of the power distribution station based on operating parameters of each cooling device.

[0045] Among them, the equipment operating parameters can be the parameters set by each component (each cooling device) in the cooling system during operation. The wet-bulb temperature generally refers to the lowest temperature that can be reached in the current environment simply by evaporating water. In layman's terms, the wet-bulb temperature can be understood as an indicator that measures "the ability of air to evaporate water and thus cool it down." In this application, the wet-bulb temperature critical value determines the lowest theoretical value to which the water temperature can be reduced through air evaporation.

[0046] It should be noted that, under a stable environmental condition, the heat absorbed by evaporation is approximately equal to the heat transferred by the air, and the heat absorbed by evaporation coincides with the heat generated by the distribution station. The heat generation of the distribution station has a positive correlation with the power supply situation undertaken by the distribution station. At the same time, in order to ensure the normal operation of the distribution station, the cooling capacity provided needs to have a positive correlation with the power supply situation undertaken by the distribution station, and the equipment operating parameters of the cooling equipment are related to the cooling capacity. Therefore, the equipment operating parameters of the cooling equipment can be used to indirectly calculate the wet-bulb temperature critical value of the distribution station. The embodiments of the present application do not limit the specific calculation method.

[0047] S140. Determine a cooling source allocation operating mode of the cooling system according to the real-time temperature of the natural cooling source and the wet-bulb temperature critical value within the available time range.

[0048] On the one hand, the cooling resource allocation mode can be used to determine how to utilize mechanical cooling resources and natural cooling resources separately or simultaneously for cooling. It is understood that if the natural cooling resource is completely unavailable, only mechanical cooling resources will be used for cooling. Therefore, it is necessary to determine how the natural cooling resource should be coordinated with the mechanical cooling resource within the time frame when the natural cooling resource is available.

[0049] On the other hand, the real-time temperature of the natural cooling source determines whether it can provide cooling for the distribution station. It is understood that the natural cooling source can only be used to cool the distribution station if the temperature of the natural cooling source is lower than that of the distribution station. Therefore, the real-time temperature of the natural cooling source is compared with the wet-bulb temperature threshold. For example, when the real-time temperature of the natural cooling source is lower than the wet-bulb temperature threshold, the natural cooling source can be used to provide cooling for the distribution station.

[0050] S150: Control the cooling system to cool the power distribution station according to the cold source distribution working mode and the parameter control curve.

[0051] The cooling resource allocation mode, defined in the preceding steps, determines when to use mechanical cooling and when to use natural cooling. Subsequently, the cooling devices are controlled according to their parameter control curves to activate the cooling system and cool the substation according to the defined cooling resource allocation mode.

[0052] The technical solution of the embodiment of the present application is to obtain, in response to the power request of the electrical equipment, the parameter control curve of each cooling device in the cooling system corresponding to the distribution station that distributes power to the electrical equipment; wherein the cold source of the cooling system includes a mechanical cold source and a natural cold source; obtain the available time range of the natural cold source in the area where the distribution station is located; determine the wet-bulb temperature critical value of the distribution station based on the equipment working parameters of each cooling device; determine the cold source allocation working mode of the cooling system based on the real-time temperature and wet-bulb temperature critical value of the natural cold source within the available time range; and control the cooling system to cool the distribution station based on the cold source allocation working mode and the parameter control curve. In this way, the use mode of the natural cold source can be determined within the time range when the natural cold source is available, which solves the high energy consumption caused by cooling only by mechanical cold sources in the prior art, reduces the energy consumption of the mechanical cold source, and improves the energy efficiency of heat dissipation cooling.

[0053] In an optional embodiment, obtaining the parameter control curve of each device in the cooling system corresponding to the power distribution station that distributes power to the electrical equipment in S110 may include:

[0054] S111 . Obtain target power consumption duration and target power consumption of the power-consuming equipment, as well as parameters of each cooling equipment in the cooling system.

[0055] The target power duration can be the expected length of time the device will require power, and the target power can be the amount of energy consumed per unit time, which is typically the same as or similar to the rated power of the device. The parameters of each cooling device in the cooling system can be the operating parameters currently in use for all cooling devices in the cooling system. Upon receiving a power request from a device, the target power duration, target power, and operating parameters of all cooling devices in the cooling system are obtained.

[0056] S112: Input the target power consumption duration, target power consumption, and cooling equipment parameters into a pre-trained cooling control model, so that the cooling control model outputs a parameter control curve of the cooling system.

[0057] The cooling control model can be a pre-trained machine learning model for generating a parameter control curve. The model inputs target power usage duration, target power consumption, and cooling equipment parameters, and outputs a parameter control curve for the cooling system.

[0058] It is understandable that the training data set used by the model in the training process may include the historical power consumption time, historical power consumption and historical parameters of cooling equipment of electrical equipment in the historical period, as well as parameter curves of the historical period. Of course, the parameter curves of the historical period need to be drawn based on historical data. These training sets are used to train basic machine learning models (such as neural network models, etc.), so that the basic model has the ability to generate parameter control curves, that is, the cooling control model can be obtained. It should be noted that each parameter control curve generated by the model and its corresponding power consumption time, power consumption and equipment parameters can continue to be used as data in the training set of the model to iterate the model.

[0059] In the above embodiment, a pre-trained cooling control model is used to provide a parameter control curve for the cooling of the distribution station, and each cooling device in the cooling system is controlled according to the parameter control curve. Since the parameter control curve is generated by the model, and the model draws on a large amount of data from historical periods, it can effectively improve the control efficiency of the cooling equipment and provide a reliable basis for subsequent control of the cooling system.

[0060] In an optional embodiment, obtaining the available time range of the natural cooling source in the area where the distribution station is located in S120 may include: obtaining the annual temperature data of the area where the distribution station is located; and taking the time interval corresponding to the data in the annual temperature data that is lower than the preset critical cooling temperature as the available time range.

[0061] Among them, the annual temperature data can be the temperature data of the geographical location where the distribution station is located at all times. From the annual temperature data, the temperature height and changes of the geographical location can be seen. The critical refrigeration temperature can be a temperature judgment basis for judging whether the natural cold source (air is taken as an example in this application) at the geographical location of the distribution station can provide cooling for the distribution station. The time period when the temperature is lower than the critical refrigeration temperature at all times of the year is used as the available time range. Of course, the specific value of the critical refrigeration temperature can be determined by technical personnel in the relevant field based on a large number of surveys, statistics or experiments. For example, it can be set to 6°C, that is, when the temperature of the natural cold source is less than 6°C, the distribution station can be cooled.

[0062] It should be noted that, by way of example, the monthly statistics of the available hours and total hours at the geographical location of the distribution station as a function of the critical refrigeration temperature are shown in Table 1.

[0063] Table 1

[0064]

[0065] As shown in Table 1, the available hours of natural cooling gradually increase with increasing critical cooling temperature. In the distribution station's area, when the critical cooling temperature is 4°C, natural cooling is completely unavailable; at 6°C, it is almost unavailable. At the highest critical cooling temperature (16°C in Table 1), the available hours in December, January, and February each winter month account for over 87% of the total hours, exceeding 2,800 hours, including approximately 2,000 hours in winter and approximately 800 hours in the transitional season. The above analysis indicates that in regions with hot summers and warm winters, considering the cost of utilizing natural cooling, it is not recommended to use natural cooling for cooling when the operating temperature of the cooling equipment corresponding to the selected natural cooling source is below 6°C. Conversely, natural cooling can be used for cooling in other situations.

[0066] In the above embodiment, by collecting statistics on the temperature data of the area where the distribution station is located throughout the year and analyzing the time period when natural cooling sources can be used for cooling, a reliable basis is provided for the subsequent working mode of using natural cooling sources for auxiliary cooling.

[0067] In an optional embodiment, determining the critical wet-bulb temperature of the distribution station based on the equipment operating parameters of each cooling equipment as described in S130 may include: determining the terminal water supply temperature of the cooling system based on the inlet air temperature of the distribution station and the terminal air-water temperature difference of the cooling system; determining the cooling water outlet temperature of the cooling system based on the heat exchanger temperature difference and the terminal water supply temperature of the cooling system; and determining the critical wet-bulb temperature of the distribution station based on the cooling water outlet temperature and the heat exchange temperature difference on the cooling tower side of the cooling system.

[0068] Among them, the inlet air temperature of the distribution station can be the inlet air temperature of the cold channel or cabinet of the distribution station. The terminal air-water temperature difference can be the heat exchange temperature difference between the air and water at the cooling terminal set in the cooling system (for example, the air-water heat exchange temperature difference of the chilled water air conditioner set at the terminal). The terminal water supply temperature can be the water supply temperature of the cooling system at the cooling terminal. The cooling terminal can be the part of the cooling system that enters the distribution station to absorb heat in the distribution station. The heat exchanger temperature difference can be the temperature difference on both sides of the heat exchanger in the cooling system. Of course, the heat exchanger is part of the mechanical cold source facility. The cooling water outlet temperature can be the temperature of the water flowing out of the cooling terminal. It can be understood that the terminal water supply temperature is lower than the cooling water outlet temperature. The water enters the cooling terminal and takes away the heat in the distribution station. Therefore, the cooling water outlet temperature is higher than the terminal water supply temperature.

[0069] For example, the air inlet temperature of the cold channel or cabinet of a 10kV distribution station can be 18°C-27°C, preferably, 27°C. The air-water heat exchange temperature difference of the terminal cold water precision air conditioner can be 6-8°C, preferably, 6°C, then the water supply temperature at the terminal of the 10kV distribution station is 21°C; when cooling is provided by a mechanical cold source, there is a heat exchange temperature difference between the cooling water and the chilled water (chilled water is the water before entering the cooling terminal, and cooling water is the water coming out of the cooling terminal). At present, high-efficiency plate heat exchangers can achieve a heat exchange temperature difference of 1°C. In the embodiment of the present application, the temperature difference between the inlet and outlet water of the plate heat exchanger is 1°C, and the cooling water outlet temperature is determined to be 20°C; the outlet water temperature of the cooling tower (cooling tower in the cooling system) is determined by the wet-bulb temperature of the outdoor air. The outlet water temperature of the cooling tower can theoretically be reduced to the wet-bulb temperature of the outdoor air, but it requires an infinite cooling area to achieve this. In fact, the outlet temperature of the cooling water is always higher than the wet-bulb temperature of the air at that time. According to relevant research, the temperature difference between the wet-bulb temperature and the outlet water temperature of the cooling water is about 4°C. Therefore, the critical value of wet-bulb temperature that can be utilized as a natural cooling source can be 16°C.

[0070] It will be appreciated that in the above embodiment, when the temperature of the natural cooling source is below the wet-bulb temperature threshold, the natural cooling source can be used instead of mechanical cooling, thereby reducing the mechanical cooling time and energy consumption. Therefore, the calculated wet-bulb temperature threshold can effectively help determine whether natural cooling can be used for cooling.

[0071] In another optional embodiment, the method of determining the cold source allocation working mode of the cooling system based on the real-time temperature and wet-bulb temperature critical value of the natural cold source in S140 may include: when the real-time temperature is less than the wet-bulb temperature critical value, starting the natural cold source auxiliary cooling working mode.

[0072] It is understood that when the real-time temperature of the natural cooling source is below the wet-bulb temperature threshold, it indicates that the natural cooling source can provide cooling for the distribution station, and therefore the natural cooling source assisted cooling mode can be activated. Of course, it should be noted that in the cooling source distribution mode, there are not only two situations: mechanical cooling source cooling alone and natural cooling source cooling alone, but also situations where mechanical cooling source cooling and natural cooling source cooling coexist. In particular, when the real-time temperature is below the wet-bulb temperature threshold, natural cooling source cooling can be used, and the natural cooling source cooling mode is activated. If natural cooling source cooling alone cannot meet the cooling requirements of the distribution station, mechanical cooling source cooling is also activated. Compared to using mechanical cooling source cooling all the time, using natural cooling source assisted cooling reduces the pressure of mechanical cooling source cooling to a certain extent, thereby reducing the energy consumption of mechanical cooling source cooling.

[0073] In another optional embodiment, controlling the cooling system to cool the power distribution station according to the cold source allocation working mode and the parameter control curve in S150 may include:

[0074] S151 . Determine, according to the cooling source allocation working mode, a mechanical cooling time interval corresponding to a mechanical cooling source and a natural cooling time interval corresponding to a natural cooling source.

[0075] The mechanical cooling time interval may be understood as the time range during which mechanical cooling is adopted; correspondingly, the natural cooling time interval may be the time range during which natural cooling is adopted.

[0076] The cooling source allocation operating modes defined in the aforementioned embodiments or implementations indicate when the cooling system utilizes mechanical cooling sources and when it utilizes natural cooling sources. It is understood that natural cooling can be utilized during periods when the temperature of the natural cooling source is below the wet-bulb temperature threshold, and accordingly, these periods can be designated as natural cooling periods. Accordingly, all time periods other than the natural cooling period can be designated as mechanical cooling periods.

[0077] It should be noted that when the time intervals of natural cold source cooling and mechanical cold source cooling are composed of multiple interval sub-intervals, the time interval of any two sub-intervals with the same property (that is, the intervals belonging to natural cold source cooling or the intervals belonging to mechanical cold source refrigeration) can be calculated. When the time interval is lower than a preset time interval, the two sub-intervals and the interval interval are connected to form a new sub-interval, and the properties of the new sub-interval are consistent with the above two sub-intervals. Then repeat the above steps until the time intervals between the sub-intervals with the same properties in the new natural cold source cooling and mechanical refrigeration time intervals are greater than the preset time interval. The new time interval is used as the final time interval. This can ensure that the single working time of natural cold source refrigeration or mechanical cold source refrigeration is longer, avoiding frequent changes in cooling methods that affect the normal operation of the distribution station.

[0078] Of course, it should be further explained that within the natural cooling time interval, there may be situations where natural cooling alone cannot meet the cooling requirements of the distribution station, necessitating the activation of mechanical cooling. Therefore, the natural cooling time interval and the mechanical cooling time interval may overlap. The overlapping time intervals will depend on the specific heat dissipation situation and are not limited in this embodiment of the present application.

[0079] S152 . In a mechanical cooling time interval or a natural cooling time interval, control each cooling device to cool the power distribution station according to a parameter control curve.

[0080] It can be understood that after determining the working time of mechanical cold source refrigeration and natural cold source refrigeration, the corresponding cooling equipment is controlled to work according to the parameter control curve determined in the above embodiment during these working times, so that the cooling system can dissipate heat and cool the distribution station.

[0081] In the above embodiment, by distinguishing the working time intervals of mechanical cold source cooling and natural cold source cooling, each cooling device is controlled to work according to the previously determined parameter control curve to cool the distribution station, thereby greatly utilizing the natural cold source and improving the utilization efficiency of the natural cold source. On the basis of ensuring the cooling effect of the distribution station, the cooling cost is reduced, the energy consumption of using mechanical cold sources is reduced, and the utilization efficiency of various energy sources is improved.

[0082] In a practical example, the operating power of the mechanical refrigeration equipment of the 10 kV distribution station at different times can be compared. Specifically, it can be calculated using the following formula:

[0083]

[0084] Among them, COP 系，iis the operating power of the cooling system in each season, i = 1, 2, 3, 4 (i.e., winter, spring, summer, and autumn); Q is the total heat dissipation load; n1 is the number of cooling towers; n2 is the number of chilled water pumps; n3 is the number of cooling water pumps; W 冷，i is the water pump power of natural cooling source; W 塔，i =W2 is the cooling tower power; W3 is the chilled water pump power. Chilled water is the water before entering the cooling terminal, and cooling water is the water flowing out of the cooling terminal.

[0085] The above formula can be used to compare the operating power of mechanical refrigeration in different time periods, and then the energy consumption reduction effect of the cooling control method provided in the embodiment of the present application can be compared based on the usage of natural cooling sources in different time periods.

[0086] In another embodiment, the distribution station can be cooled according to the parameter control curve before distributing power to the electrical equipment. It is understood that the cooling system is activated before the distribution station operates to provide cooling to ensure the operating temperature of the distribution station and improve the efficiency of the distribution station in power distribution.

[0087] Example 2

[0088] Figure 2 This is a schematic diagram of the structure of a cooling control device provided in Example 2 of this application. Figure 2 As shown, the device 200 includes:

[0089] The control curve acquisition module 210 is configured to obtain, in response to a power request from an electrical device, a parameter control curve for each cooling device in a cooling system corresponding to a power distribution station that distributes power to the electrical device; wherein the cooling source of the cooling system includes a mechanical cooling source and a natural cooling source;

[0090] A time range acquisition module 220 is used to obtain the available time range of the natural cooling source in the area where the power distribution station is located;

[0091] A wet-bulb temperature determination module 230 is configured to determine a critical wet-bulb temperature of the distribution station based on operating parameters of each cooling device;

[0092] The working mode determination module 240 is used to determine the cooling source allocation working mode of the cooling system according to the real-time temperature and wet-bulb temperature critical value of the natural cooling source within the available time range;

[0093] The cooling control module 250 is used to control the cooling system to cool the power distribution station according to the cooling source distribution working mode and the parameter control curve.

[0094] The technical solution of the embodiment of the present application is to obtain, in response to the power request of the electrical equipment, the parameter control curve of each cooling device in the cooling system corresponding to the distribution station that distributes power to the electrical equipment; wherein the cold source of the cooling system includes a mechanical cold source and a natural cold source; obtain the available time range of the natural cold source in the area where the distribution station is located; determine the wet-bulb temperature critical value of the distribution station based on the equipment working parameters of each cooling device; determine the cold source allocation working mode of the cooling system based on the real-time temperature and wet-bulb temperature critical value of the natural cold source within the available time range; and control the cooling system to cool the distribution station based on the cold source allocation working mode and the parameter control curve. In this way, the use mode of the natural cold source can be determined within the time range when the natural cold source is available, which solves the high energy consumption caused by cooling only by mechanical cold sources in the prior art, reduces the energy consumption of the mechanical cold source, and improves the energy efficiency of heat dissipation cooling.

[0095] In an optional implementation, the wet-bulb temperature determination module 230 may include:

[0096] The terminal water supply temperature determination unit is used to determine the terminal water supply temperature of the cooling system according to the difference between the inlet air temperature of the distribution station and the terminal air-water temperature of the cooling system;

[0097] The cooling water outlet temperature determination unit is used to determine the cooling water outlet temperature of the cooling system according to the heat exchanger temperature difference and the terminal water supply temperature of the cooling system;

[0098] The wet-bulb temperature critical value determination unit is used to determine the wet-bulb temperature critical value of the distribution station according to the cooling water outlet temperature and the heat exchange temperature difference on the cooling tower side of the cooling system.

[0099] In an optional implementation, the working mode determination module 240 may be specifically configured to:

[0100] When the real-time temperature is lower than the wet-bulb temperature critical value, the natural cooling source auxiliary cooling mode is started.

[0101] In an optional embodiment, the cooling control module 250 may include:

[0102] A time interval determination unit, configured to determine a mechanical cooling time interval corresponding to a mechanical cooling source and a natural cooling time interval corresponding to a natural cooling source according to a corresponding cooling source allocation working mode;

[0103] The cooling control unit is used to control each cooling device to cool the distribution station according to the parameter control curve during the mechanical cooling time interval or the natural cooling time interval.

[0104] In an optional implementation, the control curve acquisition module 210 may include:

[0105] The device information acquisition unit is used to obtain the target power consumption duration and target power consumption of the power-consuming device, as well as the parameters of each cooling device in the cooling system;

[0106] The control curve determination unit is used to input the target power consumption duration, target power consumption and cooling equipment parameters into a pre-trained cooling control model so that the cooling control model outputs a parameter control curve of the cooling system.

[0107] In an optional implementation, the time range acquisition module 220 may include:

[0108] The annual temperature acquisition unit is used to obtain the annual temperature data of the area where the power distribution station is located;

[0109] The time range determining unit is used to use the time interval corresponding to the data below the preset refrigeration critical temperature in the annual temperature data as the available time range.

[0110] The cooling control device provided in the embodiment of the present application can execute the cooling control method provided in any embodiment of the present application, and has the corresponding functional modules and beneficial effects for executing each cooling control method.

[0111] Example 3

[0112] Figure 3A A structural diagram of a cooling system provided for Example 1 of the present application. The embodiments of the present application are intended to solve the cooling problem of large distribution stations. Distribution stations provide power distribution to large power facilities, and a large amount of heat is generated in the process. Therefore, providing cooling services for distribution stations has become one of the research focuses of technical personnel in related fields. The embodiments and implementation methods of the present application will take the banking scenario as an example. At this stage, banks have a large number of electricity-consuming units and facilities, such as bank data centers. These electricity-consuming units and equipment require large distribution stations to supply electricity. For example, using 10KV distribution stations for power distribution, etc., it is of positive significance to cool these large distribution stations.

[0113] like Figure 3AAs shown, an embodiment of the present application provides a cooling system, wherein the cooling system 300 includes a first cooling circuit 310, a second cooling circuit 320, a mechanical cold source facility 330 and a cooling control device 200; wherein the first cooling circuit 310 is composed of a cooling terminal A, a first water pump B1, a first valve C1, and a second water pump B2 connected in series through a cooling pipe; the second cooling circuit 320 is composed of a cooling terminal A, a first water pump B1, a natural cold source facility 321, a second valve C2 and a second water pump B2 connected in series through a cooling pipe; the mechanical cold source facility 330 is arranged in contact with a target pipe X between the cooling terminal A and the second water pump B2; the cooling control device 200 is respectively communicated with the first water pump B1, the second water pump B2, the first valve C1, the second valve C2, the mechanical cold source facility 330 and the natural cold source facility 321; the cooling control device 200 is as described in the above-mentioned embodiment 2, and is used to implement a cooling control method provided in the above-mentioned embodiment 1 and each implementation method.

[0114] It should be noted that the cooling terminal is arranged in the distribution station, and is used to take away the heat generated in the distribution station and perform heat dissipation cooling for the distribution station. The mechanical cold source facility provides the cooling system with the relevant capabilities of mechanical cold source refrigeration. The mechanical cold source can be selected according to the specific circumstances, and the embodiment of the present application does not limit this. For the cooling pipes that are connected in series to form the cooling circuit and are used to carry the cooling medium (such as chilled water and cooling water), the material and model of the cooling pipes can also be selected according to the specific circumstances, and the embodiment of the present application does not limit this. In addition, the cooling control device is connected to all controllable devices such as valves and water pumps in this application for communication. It can be a wired communication connection or a wireless communication connection. The schematic diagram of the communication connection is not clearly shown in the various figures in this embodiment, but it should not be understood that the cooling control device is isolated. The communication connection method can adopt any one of the relevant technologies, such as field bus, etc., and the embodiment of the present application does not limit this.

[0115] In an alternative embodiment, Figure 3B As shown, the mechanical cold source facility 330 includes a heat exchange device Y, a first cooling tower T1 and a third water pump B3; wherein the heat exchange device Y, the first cooling tower T1 and the third water pump B3 are connected in series in sequence through a cooling pipe; the heat exchange device Y is arranged in contact with the target pipe X.

[0116] The heat exchange device is used to remove heat from the target pipe X and release the heat to the outside air through the first cooling tower. The heat exchange device can adopt any one of the related technologies, and the embodiment of the present application is not limited to this.

[0117] In a further optional embodiment, if Figure 3CAs shown, the heat exchange device Y includes an evaporator Y1 and a condenser Y2; wherein, the evaporator Y1 wraps the target pipe X so that the heat exchange device Y and the target pipe X can perform heat exchange; the condenser Y2 wraps the heat exchange pipe Z between the first cooling tower T1 and the third water pump B3 so that the heat exchange device Y and the heat exchange pipe Z can perform heat exchange; the evaporator Y1 and the condenser Y2 are connected through a condensing pipe.

[0118] Among them, the condensation pipe belongs to the internal structure of the heat exchange device, which is used to connect the evaporator and the condenser for heat exchange. Any pipe material in the relevant technology can be used, and the embodiments of this application do not limit this.

[0119] In a further optional embodiment, the cooling control device 200 is communicatively connected to the mechanical cold source facility 330 , including: the cooling control device 200 is communicatively connected to the heat exchange device Y and the third water pump B3 respectively.

[0120] In another optional embodiment, if Figure 3B As shown, the natural cooling source facility 321 includes a fourth water pump B4, a second cooling tower T2, and a filter device G; wherein, the water inlet of the fourth water pump B4 is connected to the water outlet of the first water pump B1 via a cooling pipe; the water outlet of the fourth water pump B4 is connected to the water inlet of the second cooling tower T2 via a cooling pipe; the water outlet of the second cooling tower T2 is connected to the water inlet of the filter device G via a cooling pipe; the water outlet of the filter device G is connected to the water inlet of the second valve C2 via a cooling pipe; the second cooling tower T2 is in contact with an external natural cooling source for heat exchange. wherein, the filter device G is used to filter the water flowing out of the second cooling tower T2 to prevent impurities from entering the cooling end and causing a risk of blockage. This application does not limit the specific form of the filter device.

[0121] In a further optional embodiment, the cooling control device 200 is communicatively connected to the natural cooling source facility 321 , including: the cooling control device 200 is communicatively connected to the fourth water pump B4 .

[0122] like Figure 3C As shown, according to the cooling system provided by this embodiment, when only a mechanical cold source is used for cooling, the cooling control device controls B1, C1, B2 and B3 to be opened, and B4 and C2 to be closed; when only a natural cold source is used for cooling, the cooling control device controls B1, B4, C2, B2 to be opened, and C1 and B3 to be closed; when both mechanical cold source and natural cold source are used for cooling, all water pumps and valves are opened.

[0123] It is understood that the natural cooling source facility directly adds the cooling medium (water) that has passed through the cooling tower (second cooling tower) to the circuit for cooling the power distribution station, thereby directly rather than indirectly utilizing the natural cooling source to provide cooling capacity.

[0124] The technical solution of the embodiment of the present application can simultaneously utilize mechanical cold sources and natural cold sources to dissipate heat and cool the distribution station, solving the high energy consumption caused by the existing technology that can only be cooled by mechanical cold sources. While reducing the energy consumption of mechanical cold sources, it improves the energy utilization efficiency of heat dissipation and cooling.

[0125] Example 4

[0126] Figure 4 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0127] like Figure 4 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0128] Multiple components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0129] The processor 11 may be any general-purpose and / or specialized processing component with processing and computing capabilities. Examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors for running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the cooling control method.

[0130] In some embodiments, the cooling control method can be implemented as a computer program that is tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the cooling control method described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to perform the cooling control method in any other suitable manner (e.g., by means of firmware).

[0131] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on a chip (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0132] Computer programs for implementing the methods of the present application may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0133] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. A computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. A more specific example of a machine-readable storage medium can include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0134] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0135] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0136] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0137] The present application also discloses a computer program product, comprising a computer program that, when executed by a processor, implements the cooling control method provided in any of the embodiments of the present application. This program product and the cooling control method disclosed in each embodiment of the present application share the same inventive concept and are therefore not described in detail here.

[0138] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this application can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of this application can be achieved. This is not limited herein.

[0139] The above specific embodiments do not constitute a limitation on the scope of protection of this application. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application shall be included within the scope of protection of this application.

Claims

1. A cooling control method, characterized in that: include: In response to a power request from an electrical device, obtaining a parameter control curve for each cooling device in a cooling system corresponding to a power distribution station that distributes power to the electrical device; wherein the cooling source of the cooling system includes a mechanical cooling source and a natural cooling source; Obtaining the available time range of the natural cooling source in the area where the power distribution station is located; Determining a critical wet-bulb temperature of the power distribution station according to operating parameters of each cooling device; Determining a cooling source allocation operating mode of the cooling system according to the real-time temperature of the natural cooling source and the wet-bulb temperature critical value within the available time range; According to the cold source distribution working mode and the parameter control curve, the cooling system is controlled to cool the power distribution station.

2. The method according to claim 1, characterized in that Determining the wet-bulb temperature critical value of the distribution station according to the equipment operating parameters of each of the cooling devices includes: Determining the terminal water supply temperature of the cooling system according to the difference between the inlet air temperature of the distribution station and the terminal air-water temperature of the cooling system; Determining the cooling water outlet temperature of the cooling system according to the heat exchanger temperature difference of the cooling system and the terminal water supply temperature; The wet-bulb temperature critical value of the power distribution station is determined according to the cooling water outlet temperature and the heat exchange temperature difference on the cooling tower side of the cooling system.

3. The method according to claim 1, characterized in that The step of determining the cooling source allocation working mode of the cooling system according to the real-time temperature of the natural cooling source and the wet-bulb temperature critical value includes: When the real-time temperature is lower than the wet-bulb temperature critical value, the natural cooling source auxiliary cooling working mode is started.

4. The method according to claim 1, wherein The step of controlling the cooling system to cool the power distribution station according to the cold source allocation working mode and the parameter control curve includes: Determining, according to the cooling source allocation working mode, a mechanical cooling time interval corresponding to the mechanical cooling source and a natural cooling time interval corresponding to the natural cooling source; In the mechanical cooling time interval or the natural cooling time interval, each of the cooling devices is controlled to cool the power distribution station according to the parameter control curve.

5. The method according to claim 1, wherein The obtaining of the parameter control curve of each device in the cooling system corresponding to the power distribution station for distributing power to the electrical equipment includes: Obtaining target power consumption duration and target power consumption of the power-consuming device, as well as parameters of each cooling device in the cooling system; The target power consumption duration, the target power consumption and the cooling equipment parameters are input into a pre-trained cooling control model, so that the cooling control model outputs a parameter control curve of the cooling system.

6. The method according to claim 1, characterized in that The available time range for obtaining the natural cooling source in the area where the power distribution station is located includes: Obtaining annual temperature data for the area where the power distribution station is located; The time interval corresponding to the data below the preset refrigeration critical temperature in the annual temperature data is used as the available time range.

7. A cooling system, characterized in that: The cooling system includes a first cooling circuit, a second cooling circuit, a mechanical cooling source facility and a cooling control device; wherein, The first cooling circuit is composed of a cooling terminal, a first water pump, a first valve, and a second water pump connected in series through a cooling pipe; The second cooling circuit is composed of a cooling terminal, a first water pump, a natural cooling source facility, a second valve and a second water pump connected in series through a cooling pipe; The mechanical cooling source facility is arranged in contact with the target pipeline between the cooling terminal and the second water pump; The cooling control device is respectively connected to the first water pump, the second water pump, the first valve, the second valve, the mechanical cooling source facility and the natural cooling source facility; The cooling control device is used to execute the cooling control method described in claims 1-6.

8. The system according to claim 7, characterized in that The mechanical cooling source facility includes a heat exchange device, a first cooling tower and a third water pump; wherein, The heat exchange device, the first cooling tower and the third water pump are connected in series in sequence through a cooling pipe; The heat exchange device is arranged in contact with the target pipeline.

9. The system according to claim 8, characterized in that The heat exchange device includes an evaporator and a condenser; wherein, The evaporator wraps the target pipe so that the heat exchange device and the target pipe perform heat exchange; The condenser wraps the heat exchange pipe between the first cooling tower and the third water pump, so that the heat exchange device and the heat exchange pipe perform heat exchange; The evaporator and the condenser are connected via a condensation pipe.

10. The system according to claim 7, wherein: The natural cooling source facility includes a fourth water pump, a second cooling tower and a filtering device; wherein, The water inlet of the fourth water pump is connected to the water outlet of the first water pump through a cooling pipe; The water outlet of the fourth water pump is connected to the water inlet of the second cooling tower through a cooling pipe; The water outlet of the second cooling tower is connected to the water inlet of the filtering device through a cooling pipe; The water outlet of the filtering device is connected to the water inlet of the second valve through a cooling pipe; The second cooling tower is in contact with an external natural cold source to perform heat exchange.

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