Operation mode switching method and device and electronic equipment

Abstract

The invention belongs to the field of air conditioners, and discloses an operation mode switching method and device and electronic equipment. The method comprises the steps that the first actual refrigerating capacity and the first actual complete machine power value of an air conditioning unit in a compressor mode are obtained; the predicted refrigerating capacity in the fluorine pump mode is calculated, and whether the predicted refrigerating capacity is larger than or equal to the first actual refrigerating capacity or not is judged; if yes, whether the first predicted complete machine power value is smaller than the first actual complete machine power value or not is judged; and if yes, the operation mode of the air conditioning unit is switched into the fluorine pump mode. By comparing the refrigerating capacity and the power consumption in the two modes, a more energy-saving operation mode is automatically selected. When the predicted refrigerating capacity in the fluorine pump mode meets the requirement and the predicted complete machine power value is lower than that in the compressor mode, the system can be automatically switched to the fluorine pump mode, so that energy consumption is reduced, energy efficiency is improved, energy-saving operation of the data center is achieved, meanwhile, it is ensured that the temperature of a machine room is stable, and extra energy consumption caused by improper operation mode switching is avoided.

Description

Technical Field

[0001] The present invention relates to the field of air conditioning, and in particular to a method, device, electronic device and computer-readable storage medium for switching an operation mode. Background Art

[0002] In the air conditioning system of the data center, the switching of operation modes is a key energy-saving strategy. The IT equipment in the data center has extremely high reliability requirements for the air conditioning system due to its characteristics of uninterrupted operation throughout the year.

[0003] In the process of realizing the invention, the inventors found that there are at least the following problems in the prior art: the stability of the air conditioning system directly affects the normal operation of the data center. Once the cooling is insufficient or interrupted, it may cause the data center to shut down, resulting in huge losses. At the same time, the energy consumption of the air conditioning system accounts for a large proportion of the total energy consumption of the data center, usually exceeding 40%. Therefore, it is very important to reduce energy consumption by optimizing the operation mode of the air conditioning system for energy saving and consumption reduction in the data center.

[0004] Therefore, how to reduce the energy consumption of air conditioning while meeting the cooling capacity of air conditioning is a technical problem that needs to be solved in this field. Summary of the invention

[0005] The present invention provides a method for switching operation modes, which is used to solve the problem of high energy consumption of air conditioners while ensuring the cooling capacity of the air conditioners.

[0006] A method for switching an operation mode, comprising: Acquire the current operation mode of the air conditioning unit; the operation mode includes a compressor mode and a fluorine pump mode; When the current operation mode of the air-conditioning unit is the compressor mode, obtaining a first actual cooling capacity and a first actual whole machine power value of the air-conditioning unit under the compressor mode; Calculating a predicted cooling capacity of the air-conditioning unit in the fluorine pump mode, and determining whether the predicted cooling capacity is greater than or equal to the first actual cooling capacity; If yes, then calculating a first predicted whole machine power value of the air conditioning unit in the fluorine pump mode, and determining whether the first predicted whole machine power value is less than the first actual whole machine power value; If it is less than, the operation mode of the air-conditioning unit is switched to the fluorine pump mode.

[0007] Optionally, obtaining a first actual cooling capacity and a first actual whole machine power value of the air-conditioning unit in the compressor mode includes: Obtaining a first evaporation temperature, a first condensation temperature, a superheat, a subcooling, and a compressor speed of the air-conditioning unit under the compressor mode; calculating the first actual cooling capacity according to the first evaporating temperature, the first condensing temperature, the superheat, the subcooling and the compressor speed; The actual power of the compressor, the actual power of the first inner fan and the actual power of the first outer fan of the air-conditioning unit in the compressor mode are collected, and the actual power of the compressor, the actual power of the first inner fan and the actual power of the first outer fan are summed to obtain the first actual whole machine power value.

[0008] Optionally, the calculating the predicted cooling capacity of the air-conditioning unit in the fluorine pump mode includes: Acquire a first outdoor temperature and a maximum power of an outdoor fan of the air-conditioning unit under the compressor mode; Calculate the maximum air volume of the external fan according to the maximum power of the external fan; The predicted cooling capacity of the air-conditioning unit in the fluorine pump mode is calculated according to the first condensing temperature, the first outdoor temperature and the maximum air volume of the outdoor fan.

[0009] Optionally, the calculating a first predicted whole machine power value of the air-conditioning unit in the fluorine pump mode includes: Calculating the predicted power of the first external fan of the air-conditioning unit in the fluorine pump mode according to the first actual cooling capacity, the first condensing temperature and the first outdoor temperature; The fluorine pump power is obtained, and the first predicted whole machine power value is obtained by summing the first outer fan predicted power, the first inner fan actual power and the fluorine pump power.

[0010] Optionally, when the current operation mode of the air-conditioning unit is the fluorine pump mode, the method further includes: Obtaining a second actual cooling capacity and a second actual whole machine power value of the air-conditioning unit in the fluorine pump mode; Calculating a second predicted whole machine power value when the cooling capacity of the air-conditioning unit in the compressor mode is the second actual cooling capacity; Determining whether the second predicted whole machine power value is less than the second actual whole machine power value; If so, the operation mode of the air-conditioning unit is switched to the compressor mode.

[0011] Optionally, obtaining a second actual cooling capacity and a second actual whole machine power value of the air-conditioning unit in the fluorine pump mode includes: Obtaining the actual power of the second external fan, the second condensing temperature and the second outdoor temperature of the air-conditioning unit in the fluorine pump mode; Calculating the second actual cooling capacity according to the second condensing temperature, the second outdoor temperature and the second outdoor fan actual power; The fluorine pump power and the actual power of the second inner fan of the air-conditioning unit in the fluorine pump mode are obtained, and the actual power of the second outer fan, the actual power of the second inner fan and the fluorine pump power are summed to obtain the second actual whole machine power value.

[0012] Optionally, the calculating a second predicted whole machine power value when the cooling capacity of the air-conditioning unit in the compressor mode is the second actual cooling capacity includes: Acquiring a second evaporation temperature of the air-conditioning unit in the fluorine pump mode, and calculating a predicted value of a condensation temperature of the air-conditioning unit in the fluorine pump mode according to the second evaporation temperature; calculating a predicted compressor power of the air-conditioning unit in the compressor mode according to the second evaporation temperature, the predicted condensation temperature and the second actual cooling capacity; Calculating the predicted power of the second external fan of the air-conditioning unit in the compressor mode according to the predicted power of the compressor and the second actual cooling capacity; The second predicted whole machine power value is obtained by summing the predicted power of the second outer fan, the actual power of the second inner fan and the power of the fluorine pump.

[0013] A device for switching an operation mode, comprising: A first acquisition module is used to acquire the current operation mode of the air-conditioning unit; the operation mode includes a compressor mode and a fluorine pump mode; A second acquisition module is used for acquiring a first actual cooling capacity and a first actual whole machine power value of the air-conditioning unit under the compressor mode when the current operation mode of the air-conditioning unit is the compressor mode; a first calculation module, configured to calculate a predicted cooling capacity of the air-conditioning unit in the fluorine pump mode, and determine whether the predicted cooling capacity is greater than or equal to the first actual cooling capacity; a second calculation module, configured to calculate a first predicted whole machine power value of the air-conditioning unit in the fluorine pump mode if the predicted cooling capacity is greater than or equal to the first actual cooling capacity, and determine whether the first predicted whole machine power value is less than the first actual whole machine power value; The first operation mode switching module is used to switch the operation mode of the air-conditioning unit to the fluorine pump mode if the first predicted whole machine power value is less than the first actual whole machine power value.

[0014] An electronic device, comprising: A processor and a memory, wherein the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the method for switching the operating mode as described in any one of the above is implemented.

[0015] A computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, the method for switching an operating mode as described in any one of the above is implemented.

[0016] The method for switching the operation mode provided by the embodiment of the present invention has at least the following beneficial effects: The present invention obtains the current operation mode of the air-conditioning unit; when the current operation mode of the air-conditioning unit is the compressor mode, obtains the first actual refrigeration capacity and the first actual whole machine power value of the air-conditioning unit in the compressor mode; calculates the predicted refrigeration capacity of the air-conditioning unit in the fluorine pump mode, and determines whether the predicted refrigeration capacity is greater than or equal to the first actual refrigeration capacity; if so, calculates the first predicted whole machine power value of the air-conditioning unit in the fluorine pump mode, and determines whether the first predicted whole machine power value is less than the first actual whole machine power value; if less than, switches the operation mode of the air-conditioning unit to the fluorine pump mode. The present invention can intelligently evaluate the refrigeration efficiency and energy consumption of the air-conditioning unit in the compressor mode and the fluorine pump mode according to real-time data, and automatically selects a more energy-saving operation mode by comparing the refrigeration capacity and power consumption in the two modes. When the predicted refrigeration capacity in the fluorine pump mode meets the demand and the predicted whole machine power value is lower than the compressor mode, the system will automatically switch to the fluorine pump mode, thereby reducing energy consumption, improving energy efficiency, and realizing energy-saving operation of the data center, while ensuring the stability of the room temperature and avoiding additional energy consumption due to improper switching of the operation mode. This approach helps reduce data center operating costs, minimize environmental impact, and improve system reliability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 A flowchart of a method for switching an operating mode provided by an embodiment of the present invention; Figure 2 A flowchart of another method for switching operating modes provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of an operation mode switching device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0022] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0023] The IT equipment in the data center needs to run uninterruptedly throughout the year, so the reliability of the air conditioning system is crucial. Interruption of the air conditioning system or insufficient cooling may cause the data center to shut down, resulting in significant losses. The energy consumption of the air conditioning system usually accounts for more than 40% of the total energy consumption of the data center, so reducing the energy consumption of air conditioning is an effective way to reduce the total energy consumption of the data center.

[0024] Fluorine pump air conditioning technology is an energy-saving technology that uses a fluorine pump circulation system for refrigeration. It is particularly suitable for use in winter or transitional seasons when the outdoor temperature is low. By reducing the compressor running time, fluorine pump air conditioning can effectively reduce energy consumption. Compared with the traditional single compressor mode, the fluorine pump air conditioning system provides two operating modes: compressor mode and fluorine pump mode to adapt to different refrigeration needs and outdoor temperature conditions.

[0025] In order to ensure that the cooling capacity meets the demand and keep the outlet air temperature stable, it is necessary to calculate and predict the cooling capacity and the whole machine power for different operating modes of the air conditioning unit. This helps to avoid the increase in room temperature caused by insufficient cooling capacity after the mode is switched, and on the basis of meeting the cooling capacity, by comparing the whole machine power under different modes, the optimal operating mode of the unit is determined to achieve the dual effects of cooling and energy saving. Therefore, developing an intelligent operating mode switching method that can automatically select and switch the optimal operating mode based on real-time data is of great significance to improving the energy efficiency and reducing energy consumption of data center air conditioning systems.

[0026] Please refer to Figure 1 , is a flow chart of a method for switching an operation mode provided by an embodiment of the present invention, comprising the following steps: Step S01, obtaining the current operation mode of the air conditioning unit.

[0027] In this embodiment, the operation modes of the air-conditioning unit include compressor mode and fluorine pump mode. In order to achieve energy efficiency optimization and automatic control of the air-conditioning unit, it is necessary to first determine whether the air-conditioning unit is currently in compressor mode or fluorine pump mode. In environments such as data centers that require a stable cold source, the compressor mode and fluorine pump mode are respectively suitable for different outdoor temperature conditions. The fluorine pump mode is usually more energy-efficient when the outdoor temperature is lower. By real-time monitoring and obtaining the operation mode of the air-conditioning unit, the system can intelligently evaluate the efficiency of the current mode, predict the cooling capacity and power consumption under different modes, and automatically make decisions on whether to switch the operation mode based on this information, so as to achieve the goal of maximizing energy saving and maintaining a stable temperature in the computer room.

[0028] In some embodiments, obtaining the current operating mode of the air conditioning unit can be achieved through sensors and control units integrated in the air conditioning system. These sensors monitor and record key parameters of the system, such as the operating status of the compressor, the working status of the fluorine pump, and other relevant temperature and pressure indicators. The control unit determines whether the air conditioning unit is in compressor mode or fluorine pump mode based on these parameters through preset logic or intelligent algorithms.

[0029] Step S02: when the current operation mode of the air-conditioning unit is the compressor mode, obtaining a first actual cooling capacity and a first actual whole machine power value of the air-conditioning unit in the compressor mode.

[0030] In this embodiment, the actual operation status of the air-conditioning unit in the compressor mode is accurately grasped by monitoring and recording the first actual cooling capacity and the first actual whole machine power value of the air-conditioning unit in the compressor mode. The first actual cooling capacity refers to the cooling capacity that the air-conditioning unit can provide in the compressor mode, usually in kilowatts (kW), and the first actual whole machine power value refers to the electric energy consumed by the air-conditioning unit in this mode, also in kilowatts (kW).

[0031] The purpose of obtaining this data is to compare it with the predicted cooling capacity and power values ​​in the fluorine pump mode. Through this comparison, the system can determine whether the fluorine pump mode can provide sufficient cooling capacity with lower energy consumption under the current outdoor temperature and indoor load conditions. If the predicted cooling capacity of the fluorine pump mode is greater than or equal to the actual cooling capacity in the compressor mode, and the predicted whole machine power value is also lower than the actual whole machine power value in the compressor mode, then the system will consider switching to the fluorine pump mode to achieve higher energy efficiency and energy saving effects. This mode switching decision-making process helps to optimize the operating efficiency of air-conditioning systems in critical environments such as data centers, reduce energy consumption, and reduce operating costs.

[0032] In some embodiments, as mentioned in step S02, obtaining the first actual cooling capacity and the first actual whole machine power value of the air-conditioning unit in the compressor mode may specifically include the following steps: Step S021, obtaining a first evaporation temperature, a first condensation temperature, a superheat degree, a subcooling degree and a compressor speed of the air-conditioning unit in a compressor mode.

[0033] Step S022, calculating a first actual cooling capacity according to the first evaporating temperature, the first condensing temperature, the superheat, the subcooling and the compressor speed.

[0034] In this step, in order to accurately evaluate the refrigeration performance of the air-conditioning unit in the compressor mode, the key factors affecting the refrigeration capacity are calculated, among which the evaporation temperature and condensation temperature directly affect the phase change process of the refrigerant and the heat exchange efficiency; the superheat and subcooling are related to the flow state of the refrigerant in the system and the performance of the heat exchanger; and the compressor speed determines the compression efficiency and the circulation volume of the refrigerant. By combining these parameters, the actual refrigeration capacity of the air-conditioning unit can be obtained using the refrigeration capacity calculation formula, thereby providing data support for determining whether it is necessary to switch to the fluorine pump mode.

[0035] For example, the cooling capacity of a single compressor can be calculated according to formula (1): (1) in, is the cooling capacity of a single compressor, is the cooling capacity correction factor, is the first evaporation temperature, is the first condensation temperature, For the speed, For supercooling, is the superheat, , , , , , , , , is the preset parameter; Then calculate the first actual cooling capacity of the air-conditioning unit in compressor mode according to the formula: (2) Where n is the number of compressors in the air conditioning unit.

[0036] Step S023, collecting the actual power of the compressor, the actual power of the first inner fan and the actual power of the first outer fan of the air-conditioning unit in the compressor mode, and summing the actual power of the compressor, the actual power of the first inner fan and the actual power of the first outer fan to obtain a first actual whole machine power value.

[0037] Based on the above technical solution, this embodiment obtains the actual cooling capacity and power value of the air-conditioning unit in the compressor mode, which helps to optimize the operating efficiency of the unit, and can also provide a scientific basis for mode switching, achieve energy saving and consumption reduction, and improve the reliability and flexibility of the system.

[0038] Step S03, calculating the predicted cooling capacity of the air-conditioning unit in the fluorine pump mode, and determining whether the predicted cooling capacity is greater than or equal to the first actual cooling capacity.

[0039] If yes, execute step S04.

[0040] In this embodiment, the predicted cooling capacity of the air conditioner in the fluorine pump mode is calculated and compared with the actual cooling capacity in the compressor mode in order to evaluate whether the fluorine pump mode can provide sufficient cooling capacity with lower energy consumption under the current outdoor temperature and indoor load conditions. The purpose of this step is to determine whether the compressor mode should be switched to the fluorine pump mode to achieve energy saving.

[0041] In the fluorine pump mode, the air conditioning unit uses the low outdoor temperature environment to perform refrigeration through the fluorine pump circulation system. The fluorine pump mode is suitable for use when the outdoor temperature is low, which can reduce the operating time of the compressor and thus reduce energy consumption. By predicting the cooling capacity in the fluorine pump mode, it can be evaluated whether the fluorine pump mode can meet the current refrigeration demand. If the predicted cooling capacity in the fluorine pump mode is greater than or equal to the actual cooling capacity in the compressor mode, this indicates that the fluorine pump mode can meet the current refrigeration demand. At this time, step S04 can be executed to determine whether to switch the operating mode of the air conditioning unit based on the relationship between the first predicted whole machine power value and the first actual whole machine power value in the fluorine pump mode.

[0042] In some embodiments, the calculation of the predicted cooling capacity of the air-conditioning unit in the fluorine pump mode mentioned in step S03 may specifically include the following steps: Step S031, obtaining the first outdoor temperature and the maximum power of the outdoor fan of the air-conditioning unit in the compressor mode.

[0043] Step S032, calculating the maximum air volume of the external fan according to the maximum power of the external fan.

[0044] In this step, the air volume of the external fan is the amount of air that the external fan can provide under different power conditions, which is directly related to the heat exchange efficiency and overall cooling performance of the air conditioning system. The air volume at maximum power can be regarded as the upper limit of the external fan performance. Therefore, by calculating the maximum air volume of the external fan under maximum power conditions, the maximum cooling capacity that the air conditioning unit can achieve in fluorine pump mode can be predicted. This step is crucial for evaluating and optimizing the energy efficiency ratio of the air conditioning system in different operating modes, because it helps determine whether the system can maintain sufficient cooling capacity to meet the needs of environments such as data centers when switching to fluorine pump mode.

[0045] For example, the maximum air volume of the external fan corresponding to the maximum power of the external fan can be calculated according to formula (3): (3) in, is the maximum air volume of the external fan, is the air volume correction factor, is the maximum power of the external fan, , , , , are preset parameters.

[0046] Step S033, calculating the predicted cooling capacity of the air-conditioning unit in the fluorine pump mode according to the first condensing temperature, the first outdoor temperature and the maximum air volume of the outdoor fan.

[0047] In this step, the condensing temperature and outdoor temperature are the key parameters that affect the performance of the air conditioning system, while the maximum air volume of the outdoor fan is directly related to the efficiency of heat exchange. By combining these parameters, the potential and effect of the air conditioning unit using the outdoor low temperature environment for cooling in the fluorine pump mode can be estimated.

[0048] For example, taking an air-conditioning unit with three external fans and eight condensers as an example, the maximum air volume of a single condenser can be calculated based on formula (4) and the maximum air volume of the external fans: (4) in, is the maximum air volume of the single-chip condenser, is the air volume of the external fan.

[0049] The predicted cooling capacity of a single-chip condenser in fluorine pump mode can be calculated according to formula (5): (5) in, is the predicted cooling capacity of a single-chip condenser, is the cooling capacity correction factor, is the first condensation temperature, is the first outdoor temperature, is the maximum air volume of the single-chip condenser, , , , , , , , are preset parameters.

[0050] Based on the above technical solution, this embodiment accurately obtains the first outdoor temperature and the maximum power of the external fan of the air-conditioning unit in the compressor mode, and then calculates the maximum air volume of the external fan, and then combines the first condensing temperature, the first outdoor temperature and the maximum air volume of the external fan to calculate the predicted cooling capacity in the fluorine pump mode, so as to more accurately predict the refrigeration performance in the fluorine pump mode. Such predictions are crucial for evaluating the energy-saving potential of the fluorine pump mode relative to the compressor mode. Especially when the outdoor temperature is low, the natural cold source can be fully utilized to reduce the operating time of the compressor and achieve significant energy-saving effects. This method can optimize the operating efficiency of the air-conditioning system in key environments such as data centers, reduce energy consumption, and reduce operating costs, while ensuring the stability and comfort of the indoor environment.

[0051] Step S04, calculating a first predicted whole machine power value of the air conditioning unit in the fluorine pump mode, and determining whether the first predicted whole machine power value is less than a first actual whole machine power value.

[0052] If it is less than, execute step S05.

[0053] In this embodiment, the first predicted whole machine power value of the air conditioner in the fluorine pump mode is calculated, and it is determined whether the predicted whole machine power value is less than the first actual whole machine power value in the compressor mode, in order to evaluate the energy consumption performance of the air conditioner in the fluorine pump mode, and then determine whether the fluorine pump mode is a more energy-saving operation option. By comparing the power values ​​in the two modes, it can be determined whether it is necessary to switch from the compressor mode to the fluorine pump mode, so as to reduce the overall energy consumption while maintaining a suitable indoor temperature.

[0054] In some embodiments, the calculation of the first predicted whole machine power value of the air-conditioning unit in the fluorine pump mode mentioned in step S04 may specifically include the following steps: Step S041, calculating the predicted power of the first external fan of the air-conditioning unit in the fluorine pump mode according to the first actual cooling capacity, the first condensing temperature and the first outdoor temperature.

[0055] In this step, based on key parameters such as actual cooling capacity, condensing temperature and outdoor temperature, it is possible to estimate how much power the outdoor fan needs to provide in the fluorine pump mode to meet the cooling demand, and then evaluate the energy-saving potential of the fluorine pump mode relative to the compressor mode, thereby providing decision support for whether to switch the operating mode.

[0056] For example, according to formula (6), the first actual cooling capacity in the compressor mode is divided by the number of condenser plates 8 to obtain the cooling capacity corresponding to a single condenser: (6) in, is the cooling capacity corresponding to the single-chip condenser; Combined with the first condensing temperature and the first outdoor temperature, the first predicted air volume of the single-chip condenser is obtained by formula (7): (7) in, The first predicted air volume for a single-chip condenser is is the cooling capacity correction factor, is the first condensation temperature, is the first outdoor temperature, is the cooling capacity corresponding to the single-chip condenser, , , , , , , , , , , , , , are preset parameters.

[0057] According to formula (8), the predicted total air volume of the air conditioning unit is calculated as: (8) in, is the predicted total air volume of the air conditioning unit.

[0058] According to formula (9), the second predicted air volume of a single external fan is calculated as: (9) in, The second predicted air volume for a single outdoor fan.

[0059] According to the fitting formula (10) of the air volume and power of the external fan, the first predicted power of a single external fan is obtained: (10) in, is the first predicted power of a single external fan, is the power correction factor, is the second predicted air volume of a single external fan, , , , , are preset parameters.

[0060] According to the fitting formula (11) of the air volume and power of the external fan, the predicted power of the first external fan of the air-conditioning unit in the fluorine pump mode is obtained as follows: (11) in, Predict the power of the first external fan of the air-conditioning unit in fluorine pump mode.

[0061] Step S042, obtaining the fluorine pump power, and summing the predicted power of the first outer fan, the actual power of the first inner fan and the fluorine pump power to obtain a first predicted whole machine power value.

[0062] Based on the above technical solution, this embodiment accurately obtains the first outdoor temperature and the maximum power of the outdoor fan of the air-conditioning unit in the compressor mode, and then calculates the maximum air volume of the outdoor fan, and then combines the first condensing temperature, the first outdoor temperature and the maximum air volume of the outdoor fan to calculate the predicted cooling capacity in the fluorine pump mode, so as to more accurately predict the refrigeration performance in the fluorine pump mode.

[0063] Step S05, switching the operation mode of the air-conditioning unit to the fluorine pump mode.

[0064] Based on the above technical solution, the present invention can intelligently evaluate the refrigeration efficiency and energy consumption of the air-conditioning unit in the compressor mode and the fluorine pump mode according to real-time data, and automatically select a more energy-saving operation mode by comparing the cooling capacity and power consumption in the two modes. When the predicted cooling capacity in the fluorine pump mode meets the demand and the predicted whole machine power value is lower than the compressor mode, the system will automatically switch to the fluorine pump mode, thereby reducing energy consumption, improving energy efficiency, and achieving energy-saving operation of the data center, while ensuring the stability of the room temperature and avoiding additional energy consumption due to improper switching of the operation mode. This method helps to reduce the operating costs of the data center, reduce environmental impact, and improve the reliability and flexibility of the system.

[0065] Please refer to Figure 2 , which is a flow chart of another method for switching operating modes provided by an embodiment of the present invention. Based on the above embodiments, in some embodiments, when the current operating mode of the air-conditioning unit is the fluorine pump mode, the following can also be performed: Figure 2 Steps shown: Step S11, obtaining a second actual cooling capacity and a second actual whole machine power value of the air-conditioning unit in a fluorine pump mode.

[0066] In this embodiment, the second actual cooling capacity and the second actual whole machine power value of the air-conditioning unit in the fluorine pump mode are obtained in order to accurately evaluate the energy efficiency performance of the fluorine pump mode relative to the compressor mode, and provide decision support for whether to switch back to the compressor mode, thereby optimizing energy consumption and reducing operating costs while ensuring the stable operation of the data center.

[0067] In some embodiments, the step S11 of obtaining the second actual cooling capacity and the second actual whole machine power value of the air-conditioning unit in the fluorine pump mode may specifically include the following steps: Step S111, obtaining the actual power of the second external fan, the second condensing temperature and the second outdoor temperature of the air-conditioning unit in the fluorine pump mode.

[0068] Step S112, calculating the second actual cooling capacity according to the second condensing temperature, the second outdoor temperature and the actual power of the second outdoor fan.

[0069] In this step, in order to evaluate the cooling efficiency of the air-conditioning unit in the fluorine pump mode, the main parameters that affect the cooling performance are used: the condensing temperature and the outdoor temperature reflect the temperature difference in the heat exchange process, while the actual power of the outdoor fan reflects the energy invested by the system to achieve this temperature difference. Through this calculation, the actual cooling capacity of the air-conditioning unit in the fluorine pump mode can be quantified and compared with the cooling capacity in the compressor mode. This comparison is crucial to decide whether to continue using the fluorine pump mode or switch back to the compressor mode, because it is directly related to the energy efficiency ratio and operating cost of the system.

[0070] For example, the actual air volume of the second external fan corresponding to the actual power of the second external fan can be calculated according to formula (12): (12) in, is the actual air volume of the external fan, is the air volume correction factor, is the maximum power of the external fan, , , , , are preset parameters.

[0071] The actual cooling capacity of a single external fan in fluorine pump mode can be calculated according to formula (13): (13) in, is the actual cooling capacity of a single outdoor fan, is the cooling capacity correction factor, is the second condensation temperature, is the second outdoor temperature, is the actual air volume of the external fan, , , , , , , , are preset parameters.

[0072] The second actual refrigeration capacity in fluorine pump mode is calculated according to formula (14): (14) in, It is the second actual cooling capacity in fluorine pump mode.

[0073] Step S113, obtaining the fluorine pump power and the actual power of the second inner fan of the air-conditioning unit in the fluorine pump mode, and summing the second outer fan actual power, the second inner fan actual power and the fluorine pump power to obtain a second actual whole machine power value.

[0074] Based on the above technical solution, this embodiment obtains the actual power of the second external fan, the condensing temperature and the outdoor temperature, and calculates the second actual cooling capacity accordingly, so as to accurately evaluate the refrigeration efficiency in the fluorine pump mode. Furthermore, by obtaining the fluorine pump power and the actual power of the second internal fan, and summing these power values ​​to obtain the second actual whole machine power value, the energy consumption in the fluorine pump mode can be fully understood. This method helps to compare with the energy consumption in the compressor mode, so as to make a decision on whether to switch the operating mode, optimize energy efficiency, reduce operating costs, and ensure stable operation in environments such as data centers.

[0075] Step S12, calculating a second predicted whole machine power value when the cooling capacity of the air-conditioning unit in the compressor mode is the second actual cooling capacity.

[0076] In this embodiment, when the air conditioner is in the fluorine pump mode, the power value required to achieve the same cooling capacity if the air conditioner is operated in the compressor mode is predicted by obtaining parameters such as the cooling capacity, condensing temperature and outdoor temperature in this mode. The purpose of this is to evaluate whether the compressor mode is more energy-efficient than the fluorine pump mode under the current cooling demand.

[0077] In some embodiments, the second predicted whole machine power value when the cooling capacity of the air-conditioning unit in the compressor mode is calculated as the second actual cooling capacity mentioned in step S12 may specifically include the following steps: Step S121, obtaining a second evaporation temperature of the air-conditioning unit in the fluorine pump mode, and calculating a predicted value of a condensation temperature of the air-conditioning unit in the fluorine pump mode according to the second evaporation temperature.

[0078] In this step, after obtaining the second evaporating temperature, the absolute pressure corresponding to the second evaporating temperature can be determined first, and then the absolute pressure corresponding to the second evaporating temperature can be multiplied by the compressor minimum pressure ratio of 1.2 to obtain the absolute condensing pressure. Finally, the condensing temperature predicted value of the air-conditioning unit in the fluorine pump mode is obtained from the absolute condensing pressure.

[0079] Step S122, calculating the predicted compressor power of the air-conditioning unit in the compressor mode according to the second evaporation temperature, the predicted value of the condensation temperature and the second actual cooling capacity.

[0080] In this step, the predicted compressor power can be calculated according to formula (15): (15) in, Predict power for compressors, is the power correction factor, is the second evaporation temperature, is the predicted value of condensation temperature, For the cooling capacity.

[0081] Step S123, calculating the predicted power of the second external fan of the air-conditioning unit in the compressor mode according to the predicted power of the compressor and the second actual cooling capacity.

[0082] In this step, the predicted value of the total heat exchange of the condenser is obtained by adding the predicted power of the compressor to the second actual cooling capacity. , and then calculate the predicted heat transfer value of the single-chip condenser Predicted value of total heat transfer Divide by 8.

[0083] According to formula (16), the third predicted air volume of the single-chip condenser is obtained: (16) in, The third predicted air volume for a single-chip condenser is: is the cooling capacity correction factor, is the second condensation temperature, is the second outdoor temperature, is the predicted value of heat transfer of a single-chip condenser, , , , , , , , , , , , , , are preset parameters.

[0084] According to formula (17), the fourth predicted air volume of a single external fan is calculated as: (17) in, This is the fourth predicted air volume of a single outdoor fan.

[0085] According to formula (18), the second predicted power of a single external fan is obtained: (18) in, is the second predicted power of a single external fan, is the power correction factor, is the fourth predicted air volume of a single external fan, , , , , are preset parameters.

[0086] According to formula (19), the predicted power of the second external fan of the air-conditioning unit in the fluorine pump mode is: (19) in, Predict the power of the second external fan of the air-conditioning unit in fluorine pump mode.

[0087] Step S124, summing the predicted power of the second outer fan, the actual power of the second inner fan and the power of the fluorine pump to obtain a second predicted whole machine power value.

[0088] Based on the above technical solution, this embodiment can accurately evaluate the refrigeration efficiency in the fluorine pump mode by obtaining the actual power of the second external fan, the condensing temperature and the outdoor temperature, and calculating the second actual cooling capacity accordingly. Furthermore, by obtaining the fluorine pump power and the actual power of the second internal fan, and summing these power values ​​to obtain the second actual whole machine power value, the energy consumption in the fluorine pump mode can be fully understood. This method helps to compare with the energy consumption in the compressor mode, so as to make a decision on whether to switch the operating mode, optimize energy efficiency, reduce operating costs, and ensure stable operation in environments such as data centers. At the same time, this detailed energy consumption analysis supports the intelligent management of the air-conditioning system, allowing the system to automatically adjust the operating mode according to real-time data to adapt to changing environmental conditions and energy efficiency requirements.

[0089] Step S13, determining whether the second predicted whole machine power value is less than the second actual whole machine power value.

[0090] If yes, execute step S14.

[0091] In this embodiment, the system determines which mode is more energy-efficient by comparing the second predicted whole-machine power value in the compressor mode and the second actual whole-machine power value in the fluorine pump mode. If the second predicted whole-machine power value is less than the second actual whole-machine power value, it indicates that the energy consumption required to achieve the same cooling capacity in the compressor mode is lower, so the operating mode of the air-conditioning unit is switched from the fluorine pump mode to the compressor mode. The purpose of this intelligent switching mechanism is to optimize the energy efficiency of the entire system while ensuring the cooling effect, reducing energy consumption and operating costs. Through this real-time energy efficiency evaluation and mode switching, the system can adapt to changing environmental conditions and load demands, ensure the stable operation of critical environments such as data centers, and achieve better economy and sustainability.

[0092] Step S14, switching the operation mode of the air-conditioning unit to the compressor mode.

[0093] Based on the above technical solution, when the air-conditioning unit is currently operating in the fluorine pump mode, this embodiment can compare the energy efficiency of the two modes by obtaining the second actual cooling capacity and the second actual whole machine power value in this mode, and calculating the second predicted whole machine power value when the same cooling capacity is achieved in the compressor mode. The beneficial effect of this method is that it can intelligently judge and decide whether to switch the operating mode from the fluorine pump mode back to the compressor mode to optimize energy efficiency and reduce operating costs. When the energy consumption in the fluorine pump mode is higher than that in the compressor mode, the system will automatically switch back to the compressor mode to ensure that while meeting the cooling demand, the energy use is optimized, which is of great significance for improving the energy efficiency ratio and economic benefits of environments such as data centers.

[0094] Please refer to Figure 3 , is a schematic diagram of the structure of an operation mode switching device provided by an embodiment of the present invention, the operation mode switching device comprising: The first acquisition module 100 is used to acquire the current operation mode of the air-conditioning unit; the operation mode includes a compressor mode and a fluorine pump mode; The second acquisition module 200 is used to acquire a first actual cooling capacity and a first actual whole machine power value of the air-conditioning unit in the compressor mode when the current operation mode of the air-conditioning unit is the compressor mode; The first calculation module 300 is used to calculate the predicted cooling capacity of the air-conditioning unit in the fluorine pump mode, and determine whether the predicted cooling capacity is greater than or equal to the first actual cooling capacity; The second calculation module 400 is used to calculate a first predicted whole machine power value of the air-conditioning unit in the fluorine pump mode if the predicted cooling capacity is greater than or equal to the first actual cooling capacity, and determine whether the first predicted whole machine power value is less than the first actual whole machine power value; The first operation mode switching module 500 is used to switch the operation mode of the air-conditioning unit to the fluorine pump mode if the first predicted whole machine power value is less than the first actual whole machine power value.

[0095] Based on the above embodiment, in a specific embodiment, the second acquisition module 200 can be specifically used for: Obtaining a first evaporation temperature, a first condensation temperature, a superheat, a subcooling, and a compressor speed of the air-conditioning unit in a compressor mode; Calculating a first actual cooling capacity according to a first evaporation temperature, a first condensation temperature, a superheat, a subcooling, and a compressor speed; The actual power of the compressor, the actual power of the first inner fan and the actual power of the first outer fan of the air-conditioning unit in the compressor mode are collected, and the actual power of the compressor, the actual power of the first inner fan and the actual power of the first outer fan are summed to obtain the first actual whole machine power value.

[0096] Based on the above embodiment, in a specific embodiment, the first calculation module 300 can be specifically used for: Obtain the first outdoor temperature and maximum power of the outdoor fan of the air-conditioning unit in compressor mode; Calculate the maximum air volume of the external fan according to the maximum power of the external fan; The predicted cooling capacity of the air-conditioning unit in the fluorine pump mode is calculated according to the first condensing temperature, the first outdoor temperature and the maximum air volume of the outdoor fan.

[0097] Based on the above embodiment, in a specific embodiment, the second calculation module 400 can be specifically used for: Calculate the predicted power of the first external fan of the air-conditioning unit in the fluorine pump mode according to the first actual cooling capacity, the first condensing temperature and the first outdoor temperature; The power of the fluorine pump is obtained, and the predicted power of the first outer fan, the actual power of the first inner fan and the power of the fluorine pump are summed to obtain a first predicted whole machine power value.

[0098] Based on the above embodiment, in a specific embodiment, the device may further include: A third acquisition module is used to obtain a second actual cooling capacity and a second actual whole machine power value of the air-conditioning unit in a fluorine pump mode; A third calculation module, used for calculating a second predicted whole machine power value when the cooling capacity of the air-conditioning unit in the compressor mode is a second actual cooling capacity; A judging module, used for judging whether the second predicted whole machine power value is less than the second actual whole machine power value; The second operation mode switching module is used to switch the operation mode of the air-conditioning unit to the compressor mode if the judgment is yes.

[0099] Based on the above embodiment, in a specific embodiment, the third acquisition module can be specifically used for: Obtain the actual power of the second external fan, the second condensing temperature and the second outdoor temperature of the air-conditioning unit in the fluorine pump mode; Calculating a second actual cooling capacity according to the second condensing temperature, the second outdoor temperature and the actual power of the second external fan; The fluorine pump power and the actual power of the second inner fan of the air-conditioning unit in the fluorine pump mode are obtained, and the second actual whole machine power value is obtained by summing the second outer fan actual power, the second inner fan actual power and the fluorine pump power.

[0100] Based on the above embodiment, in a specific embodiment, the third calculation module can be specifically used for: Obtaining a second evaporation temperature of the air-conditioning unit in the fluorine pump mode, and calculating a predicted value of a condensation temperature of the air-conditioning unit in the fluorine pump mode according to the second evaporation temperature; Calculating the predicted compressor power of the air-conditioning unit in the compressor mode according to the second evaporation temperature, the predicted condensation temperature and the second actual cooling capacity; Calculating the predicted power of the second external fan of the air-conditioning unit in the compressor mode according to the predicted power of the compressor and the second actual cooling capacity; The second predicted whole machine power value is obtained by summing the predicted power of the second outer fan, the actual power of the second inner fan and the power of the fluorine pump.

[0101] This embodiment provides an electronic device, including a processor and a memory, the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the method for switching the operating mode described above is implemented. The execution method and beneficial effects are similar and will not be repeated here.

[0102] An embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for switching the operating mode described above is implemented. The execution method and beneficial effects thereof are similar and will not be described in detail here.

[0103] It should be noted that although the above describes the various steps in a specific order, it does not mean that the various steps must be executed in the above specific order. In fact, some of these steps can be executed concurrently or even in a different order as long as the required functions can be achieved.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for switching an operation mode, characterized in that: include: Acquire the current operation mode of the air conditioning unit; the operation mode includes a compressor mode and a fluorine pump mode; When the current operation mode of the air-conditioning unit is the compressor mode, obtaining a first actual cooling capacity and a first actual whole machine power value of the air-conditioning unit under the compressor mode; Calculating a predicted cooling capacity of the air-conditioning unit in the fluorine pump mode, and determining whether the predicted cooling capacity is greater than or equal to the first actual cooling capacity; If yes, then calculating a first predicted whole machine power value of the air conditioning unit in the fluorine pump mode, and determining whether the first predicted whole machine power value is less than the first actual whole machine power value; If it is less than, the operation mode of the air-conditioning unit is switched to the fluorine pump mode.

2. The method according to claim 1, characterized in that The obtaining of a first actual cooling capacity and a first actual whole machine power value of the air-conditioning unit in the compressor mode comprises: Obtaining a first evaporation temperature, a first condensation temperature, a superheat, a subcooling, and a compressor speed of the air-conditioning unit under the compressor mode; calculating the first actual cooling capacity according to the first evaporating temperature, the first condensing temperature, the superheat, the subcooling and the compressor speed; The actual power of the compressor, the actual power of the first inner fan and the actual power of the first outer fan of the air-conditioning unit in the compressor mode are collected, and the actual power of the compressor, the actual power of the first inner fan and the actual power of the first outer fan are summed to obtain the first actual whole machine power value.

3. The method according to claim 2, characterized in that The calculating the predicted cooling capacity of the air-conditioning unit in the fluorine pump mode includes: Acquire a first outdoor temperature and a maximum power of an outdoor fan of the air-conditioning unit under the compressor mode; Calculate the maximum air volume of the external fan according to the maximum power of the external fan; The predicted cooling capacity of the air-conditioning unit in the fluorine pump mode is calculated according to the first condensing temperature, the first outdoor temperature and the maximum air volume of the outdoor fan.

4. The method according to claim 3, characterized in that The calculating of the first predicted whole machine power value of the air conditioning unit in the fluorine pump mode comprises: Calculating the predicted power of the first external fan of the air-conditioning unit in the fluorine pump mode according to the first actual cooling capacity, the first condensing temperature and the first outdoor temperature; The fluorine pump power is obtained, and the first predicted whole machine power value is obtained by summing the first outer fan predicted power, the first inner fan actual power and the fluorine pump power.

5. The method according to any one of claims 1 to 4, characterized in that: When the current operation mode of the air conditioning unit is the fluorine pump mode, the method further includes: Obtaining a second actual cooling capacity and a second actual whole machine power value of the air-conditioning unit in the fluorine pump mode; Calculating a second predicted whole machine power value when the cooling capacity of the air-conditioning unit in the compressor mode is the second actual cooling capacity; Determining whether the second predicted whole machine power value is less than the second actual whole machine power value; If so, the operation mode of the air-conditioning unit is switched to the compressor mode.

6. The method according to claim 5, characterized in that The obtaining of the second actual cooling capacity and the second actual whole machine power value of the air-conditioning unit in the fluorine pump mode comprises: Obtaining the actual power of the second external fan, the second condensing temperature and the second outdoor temperature of the air-conditioning unit in the fluorine pump mode; Calculating the second actual cooling capacity according to the second condensing temperature, the second outdoor temperature and the second outdoor fan actual power; The fluorine pump power and the actual power of the second inner fan of the air-conditioning unit in the fluorine pump mode are obtained, and the actual power of the second outer fan, the actual power of the second inner fan and the fluorine pump power are summed to obtain the second actual whole machine power value.

7. The method according to claim 6, characterized in that The calculating a second predicted whole machine power value when the cooling capacity of the air-conditioning unit in the compressor mode is the second actual cooling capacity includes: Acquiring a second evaporation temperature of the air-conditioning unit in the fluorine pump mode, and calculating a predicted value of a condensation temperature of the air-conditioning unit in the fluorine pump mode according to the second evaporation temperature; calculating a predicted compressor power of the air-conditioning unit in the compressor mode according to the second evaporation temperature, the predicted condensation temperature and the second actual cooling capacity; Calculating the predicted power of the second external fan of the air-conditioning unit in the compressor mode according to the predicted power of the compressor and the second actual cooling capacity; The second predicted whole machine power value is obtained by summing the predicted power of the second outer fan, the actual power of the second inner fan and the power of the fluorine pump.

8. A device for switching operation modes, characterized in that: include: A first acquisition module is used to acquire the current operation mode of the air-conditioning unit; the operation mode includes a compressor mode and a fluorine pump mode; A second acquisition module is used for acquiring a first actual cooling capacity and a first actual whole machine power value of the air-conditioning unit under the compressor mode when the current operation mode of the air-conditioning unit is the compressor mode; a first calculation module, configured to calculate a predicted cooling capacity of the air-conditioning unit in the fluorine pump mode, and determine whether the predicted cooling capacity is greater than or equal to the first actual cooling capacity; a second calculation module, configured to calculate a first predicted whole machine power value of the air-conditioning unit in the fluorine pump mode if the predicted cooling capacity is greater than or equal to the first actual cooling capacity, and determine whether the first predicted whole machine power value is less than the first actual whole machine power value; The first operation mode switching module is used to switch the operation mode of the air-conditioning unit to the fluorine pump mode if the first predicted whole machine power value is less than the first actual whole machine power value.

9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the method for switching the operating mode as described in any one of claims 1 to 7 is implemented.

10. 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 for switching the operating mode as described in any one of claims 1 to 7 is implemented.

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