Space adjustment object control method, device and equipment, medium and program product

Abstract

The embodiment of the invention provides a control method, device and equipment for a space adjustment object, a medium and a program product. The control method for the space adjustment object comprises the steps that a target refrigeration mode currently operated by the space adjustment object is obtained; the space adjusting object refrigerates the space where the space adjusting object is located through a target refrigeration system corresponding to the target refrigeration mode; the space adjustment object has multiple refrigeration modes, and each refrigeration mode corresponds to a respective exhaust fan control strategy; according to an exhaust fan control strategy corresponding to the target refrigeration mode, the rotating speed of an exhaust fan in the target refrigeration system is predicted; and on the basis of the predicted rotating speed, an exhaust fan in the target refrigeration system is controlled to operate. By adopting the embodiment of the invention, the rotating speed of the exhaust fan can be adjusted, and the operation energy efficiency of the space adjustment object is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of computer technology, in particular to the technical field of control of space conditioning objects, and specifically relates to a control method of a space conditioning object, a control device of a space conditioning object, a computer device, a computer readable storage medium, and a computer program product. BACKGROUND

[0002] At present, some business scenarios (for example, a machine room) require a space conditioning object to be able to cool all year round and run uninterruptedly for 24 hours a day; and with the continuous increase of market size, the industry changes brought by digital economy make the energy efficiency of precision space conditioning objects more and more valued, and a high energy efficiency market means low carbon and economy. Due to the installation advantage, energy efficiency advantage of the fluorine pump double-cycle air conditioner in the energy saving reconstruction of the data center, the proportion of the fluorine pump double-cycle air conditioner in the precision space conditioning object is gradually increasing.

[0003] The exhaust fan (the exhaust fan can also be referred to as a condensing fan) of the space conditioning object is an important component for cooling of the space conditioning object, and performs heat dissipation by rotation. At present, the rotation speed of the exhaust fan in the space conditioning object is fixed and cannot be adjusted, so that the operation energy efficiency of the space conditioning object is not high. SUMMARY

[0004] The embodiments of the present application provide a control method, device and equipment, medium and program product of a space conditioning object, which can adjust the rotation speed of the exhaust fan and improve the operation energy efficiency of the space conditioning object.

[0005] In one aspect, the embodiments of the present application provide a control method of a space conditioning object, which comprises:

[0006] obtaining a target cooling mode currently running by the space conditioning object; the space conditioning object cools the space where the space conditioning object is located through a target cooling system corresponding to the target cooling mode; the space conditioning object has multiple cooling modes, and each cooling mode corresponds to a respective exhaust fan control strategy;

[0007] According to the exhaust fan control strategy corresponding to the target cooling mode, the rotation speed of the exhaust fan in the target cooling system is predicted;

[0008] Based on the predicted rotation speed, the exhaust fan in the target cooling system is controlled to run.

[0009] Correspondingly, the embodiments of the present application provide a control device of a space conditioning object, which comprises:

[0010] The acquisition unit is configured to acquire a target refrigeration mode currently running by a space conditioning object; the space conditioning object performs refrigeration on a space where the space conditioning object is located through a target refrigeration system corresponding to the target refrigeration mode; the space conditioning object has multiple refrigeration modes, and each refrigeration mode corresponds to a respective exhaust fan control strategy;

[0011] The processing unit is configured to predict a speed of an exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode.

[0012] The processing unit is further configured to control the exhaust fan in the target refrigeration system to operate based on the predicted speed.

[0013] In an implementation manner, when the processing unit predicts the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode, the processing unit is specifically configured to perform the following steps:

[0014] Acquire exhaust fan control parameters configured for the target refrigeration mode;

[0015] Acquire working condition information of the target refrigeration system, the working condition information being used to reflect a working condition of the target refrigeration system;

[0016] Based on the exhaust fan control parameters and the working condition information, predict the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode.

[0017] In an implementation manner, the target refrigeration mode includes a fluorine pump mode, the target refrigeration system corresponding to the fluorine pump mode includes a fluorine pump refrigeration subsystem; the working condition information includes an indoor-outdoor temperature difference at a kth sampling time and refrigeration demand information at the kth sampling time.

[0018] The processing unit is configured to predict the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameters and the working condition information, and specifically configured to perform the following steps:

[0019] After starting the exhaust fan in the fluorine pump refrigeration subsystem, limit a speed threshold of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time based on the exhaust fan control parameters and the indoor-outdoor temperature difference at the kth sampling time, to obtain a limited speed threshold at the kth sampling time.

[0020] Within the limited speed threshold at the kth sampling time, determine the speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time according to the exhaust fan control parameters and the refrigeration demand information at the kth sampling time.

[0021] In an implementation manner, the exhaust fan control parameter comprises a rotation speed range of the fluorine pump mode and an indoor-outdoor temperature difference range; the processing unit is configured to limit a rotation speed threshold of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling moment based on the exhaust fan control parameter and the indoor-outdoor temperature difference at the kth sampling moment, and obtain a limited rotation speed threshold at the kth sampling moment, and specifically configured to perform the following steps:

[0022] establish a first mapping relationship between the indoor-outdoor temperature difference and the limited rotation speed threshold based on the rotation speed range of the fluorine pump mode and the indoor-outdoor temperature difference range;

[0023] map the indoor-outdoor temperature difference at the kth sampling moment based on the first mapping relationship to obtain the limited rotation speed threshold at the kth sampling moment.

[0024] In an implementation manner, the exhaust fan control parameter further comprises a refrigeration demand control parameter, a demand mapping control parameter, and a minimum rotation speed of the fluorine pump mode;

[0025] the processing unit is configured to determine the rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling moment according to the exhaust fan control parameter and the refrigeration demand information at the kth sampling moment within the limited rotation speed threshold at the kth sampling moment, and specifically configured to perform the following steps:

[0026] establish a second mapping relationship between the refrigeration demand information and the rotation speed of the exhaust fan based on the minimum rotation speed of the fluorine pump mode, the limited rotation speed threshold at the kth sampling moment, and the demand mapping control parameter;

[0027] map the refrigeration demand information at the kth sampling moment based on the second mapping relationship to obtain the rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling moment;

[0028] wherein the refrigeration demand information at the kth sampling moment is obtained by controlling and calculating the ambient temperature of the fluorine pump refrigeration subsystem at the kth sampling moment based on the refrigeration demand control parameter.

[0029] In an implementation manner, the number of the started fluorine pump refrigeration subsystems is single or multiple;

[0030] when the number of the started fluorine pump refrigeration subsystems is single, the refrigeration demand control parameter comprises a single-system refrigeration demand control parameter, and the demand mapping control parameter comprises a single-system demand mapping control parameter;

[0031] when the number of the started fluorine pump refrigeration subsystems is multiple, the refrigeration demand control parameter comprises a multiple-system refrigeration demand control parameter, and the demand mapping control parameter comprises a multiple-system demand mapping control parameter.

[0032] In an implementation manner, the process of the processing unit performing the control calculation on the ambient temperature of the fluorine pump refrigeration subsystem based on the refrigeration demand control parameter comprises:

[0033] determining a first temperature difference between the ambient temperature at the kth sampling moment and the set ambient temperature, and a second temperature difference between the ambient temperature at the (k-1)th sampling moment and the set ambient temperature;

[0034] performing the control calculation on the first temperature difference and the second temperature difference based on the refrigeration demand control parameter to obtain the refrigeration demand information at the kth sampling moment.

[0035] In an implementation manner, the processing unit is further configured to perform the following steps:

[0036] predicting the initial rotating speed of the exhaust fan in the fluorine pump refrigeration subsystem based on the exhaust fan control parameter and the working condition information to obtain a first initial rotating speed;

[0037] starting the exhaust fan in the fluorine pump refrigeration subsystem at the first initial rotating speed.

[0038] In an implementation manner, the exhaust fan control parameter comprises an outer ring temperature range of the fluorine pump mode and a rotating speed range of the fluorine pump mode, and the working condition information further comprises a current outer ring temperature of the fluorine pump refrigeration subsystem; when the processing unit predicts the initial rotating speed of the exhaust fan in the fluorine pump refrigeration subsystem based on the exhaust fan control parameter and the working condition information to obtain a first initial rotating speed, the processing unit is specifically configured to perform the following steps:

[0039] establishing a third mapping relationship between the outer ring temperature and the initial rotating speed according to the outer ring temperature range of the fluorine pump mode and the rotating speed range of the fluorine pump mode;

[0040] mapping the current outer ring temperature according to the third mapping relationship to obtain the first initial rotating speed.

[0041] In an implementation manner, the target refrigeration mode comprises a compressor mode, the target refrigeration system corresponding to the compressor mode comprises a compressor refrigeration subsystem, and the working condition information comprises an actual condensing pressure; when the processing unit predicts the rotating speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameter and the working condition information, the processing unit is specifically configured to perform the following steps:

[0042] after starting the exhaust fan in the compressor refrigeration subsystem, predicting the target condensing pressure of the compressor refrigeration subsystem based on the exhaust fan control parameter;

[0043] determining the rotating speed of the exhaust fan in the compressor refrigeration subsystem based on the exhaust fan control parameter and the difference between the actual condensing pressure and the predicted target condensing pressure.

[0044] In an implementation manner, the exhaust fan control parameter comprises a target condensing pressure initial value, a target condensing pressure range, and a defined rotating speed range of the compressor mode; the processing unit is configured to, when predicting the target condensing pressure of the compressor refrigeration subsystem based on the exhaust fan control parameter, specifically configured to perform the following steps:

[0045] determining the target condensing pressure as the target condensing pressure initial value;

[0046] adjusting the target condensing pressure according to a relationship between the rotating speed of the exhaust fan and the defined rotating speed range of the compressor mode in a set change period within the target condensing pressure range.

[0047] In an implementation manner, the exhaust fan control parameter further comprises a rotating speed control parameter; the working condition information further comprises a rotating speed of the exhaust fan in the compressor refrigeration subsystem at a (k-1)th sampling moment; the target condensing pressure comprises a target condensing pressure at a kth sampling moment and a target condensing pressure at a (k-1)th sampling moment; the actual condensing pressure comprises an actual condensing pressure at a kth sampling moment and an actual condensing pressure at a (k-1)th sampling moment;

[0048] the processing unit is configured to, when determining the rotating speed of the exhaust fan in the compressor refrigeration subsystem based on the exhaust fan control parameter and a difference between the actual condensing pressure and the predicted target condensing pressure, specifically configured to perform the following steps:

[0049] determining a first condensing pressure difference between the actual condensing pressure at the kth sampling moment and the target condensing pressure at the kth sampling moment, and a second condensing pressure difference between the actual condensing pressure at the (k-1)th sampling moment and the target condensing pressure at the (k-1)th sampling moment;

[0050] performing a control calculation on the first condensing pressure difference and the second condensing pressure difference based on the rotating speed control parameter to obtain a rotating speed adjustment value at the kth sampling moment;

[0051] adjusting the rotating speed at the (k-1)th sampling moment according to the rotating speed adjustment value at the kth sampling moment to obtain the rotating speed of the exhaust fan in the compressor refrigeration subsystem at the kth sampling moment.

[0052] In an implementation manner, the processing unit is further configured to perform the following steps:

[0053] predicting an initial rotating speed of the exhaust fan in the compressor refrigeration subsystem based on the exhaust fan control parameter and the working condition information to obtain a second initial rotating speed;

[0054] starting the exhaust fan in the compressor refrigeration subsystem according to the second initial rotating speed.

[0055] In an implementation manner, the exhaust fan control parameter comprises an exhaust fan compressor operation starting pressure; and the processing unit is further configured to perform the following steps:

[0056] After starting the exhaust fan in the compressor refrigeration subsystem, the actual condensing pressure is compared with the exhaust fan compressor operating start pressure;

[0057] If the actual condensing pressure is greater than or equal to the exhaust fan compressor start pressure, the target condensing pressure of the compressor refrigeration subsystem is predicted based on the exhaust fan control parameter.

[0058] In an implementation manner, the target refrigeration mode includes a mixed mode, the mixed mode refers to a mixed mode between the compressor mode and the fluorine pump mode, and the target refrigeration system corresponding to the mixed mode includes the compressor refrigeration subsystem and the fluorine pump refrigeration subsystem; the processing unit is configured to, when predicting the rotation speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameter and the working condition information, specifically perform the following steps:

[0059] predicting the rotation speed of the exhaust fan in the compressor refrigeration subsystem according to the exhaust fan control strategy corresponding to the compressor mode based on the exhaust fan control parameter corresponding to the compressor mode and the working condition information;

[0060] predicting the rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem according to the exhaust fan control strategy corresponding to the fluorine pump mode based on the exhaust fan control parameter corresponding to the fluorine pump mode and the working condition information.

[0061] Correspondingly, an embodiment of the present application provides a computer device, which comprises:

[0062] a processor adapted to implement a computer program;

[0063] a computer readable storage medium, the computer readable storage medium storing a computer program, the computer program being adapted to be loaded and executed by the processor to perform the above-mentioned control method of the space conditioning object.

[0064] Correspondingly, an embodiment of the present application provides a computer readable storage medium, the computer readable storage medium storing a computer program, the computer program being read and executed by the processor of the computer device to enable the computer device to perform the above-mentioned control method of the space conditioning object.

[0065] Correspondingly, an embodiment of the present application provides a computer program product, the computer program product comprising a computer program stored in a computer readable storage medium. The processor of the computer device reads the computer program from the computer readable storage medium, and the processor executes the computer program to enable the computer device to perform the above-mentioned control method of the space conditioning object.

[0066] In the embodiments of the present application, in the case that the space conditioning object has multiple refrigeration modes, each refrigeration mode corresponds to a respective exhaust fan control strategy, the speed of the exhaust fan in the target refrigeration system can be predicted according to the exhaust fan control strategy corresponding to the target refrigeration mode, so that the exhaust fan in the target refrigeration system can be controlled to operate based on the predicted speed. It can be seen that the speed of the exhaust fan can be adjusted in the embodiments of the present application, and different refrigeration modes can use different exhaust fan control strategies to adjust the speed of the exhaust fan, so that the speed of the exhaust fan is adapted to the refrigeration mode in which the space conditioning object operates, which can improve the operation energy efficiency of the space conditioning object. BRIEF DESCRIPTION OF DRAWINGS

[0067] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0068] Figure 1 is a schematic diagram of the relationship between a space conditioning object and a refrigeration system provided by an embodiment of the present application;

[0069] Figure 2 is a schematic diagram of the relationship between a refrigeration mode and a refrigeration system provided by an embodiment of the present application;

[0070] Figure 3a is a schematic diagram of the architecture of a control system of a space conditioning object provided by an embodiment of the present application;

[0071] Figure 3b is a schematic diagram of the architecture of another control system of a space conditioning object provided by an embodiment of the present application;

[0072] Figure 4 is a schematic diagram of the flow of a control method of a space conditioning object provided by an embodiment of the present application;

[0073] Figure 5 is a schematic diagram of the flow of another control method of a space conditioning object provided by an embodiment of the present application;

[0074] Figure 6 is a schematic diagram of the mapping relationship between an indoor-outdoor temperature difference and a limited speed threshold provided by an embodiment of the present application;

[0075] Figure 7 is a schematic diagram of the mapping relationship between refrigeration demand information and the speed of an exhaust fan provided by an embodiment of the present application;

[0076] Figure 8is a mapping relationship diagram between the outer ring temperature and the initial rotating speed in a fluorine pump mode provided by an embodiment of the present application.

[0077] Figure 9 is a dynamic adjustment diagram of a target condensing pressure provided by an embodiment of the present application.

[0078] Figure 10 is a mapping relationship diagram between the condensing pressure and the rotating speed of an exhaust fan provided by an embodiment of the present application.

[0079] Figure 11 is a mapping relationship diagram between the outer ring temperature and the initial rotating speed in a compressor mode provided by an embodiment of the present application.

[0080] Figure 12 is a flow diagram of the rotating speed control of the exhaust fan provided by an embodiment of the present application.

[0081] Figure 13 is a structural diagram of a control device of a space conditioning object provided by an embodiment of the present application.

[0082] Figure 14 is a structural diagram of a computer device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0083] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0084] In order to make the technical solutions provided by the embodiments of the present application more clearly understood, the technical terms related to the embodiments of the present application are introduced as follows:

[0085] I. Space conditioning object

[0086] The space conditioning object refers to a device capable of conditioning the environmental factors of the space where the space conditioning object is located. The environmental factors can include temperature, humidity, etc. That is, the space conditioning object refers to a device capable of conditioning the temperature, humidity, etc. of the space where the space conditioning object is located. In the embodiments of the present application, the space conditioning object can be an air conditioner, mainly involving the refrigeration function of the space conditioning object. The space where the space conditioning object is located can be a computer room, which is used for storing servers. The space where the space conditioning object is located can also be a shopping mall, an office, a bedroom, a living room, etc.

[0087] II. Refrigeration system

[0088] The space conditioning object can be cooled based on the refrigeration system inside the unit; inside the unit, a structure that exists in a physical form and can provide cooling capacity (cooling capacity refers to the heat exchange capacity output when the space conditioning object is in operation) is connected by refrigeration pipes. It is called a refrigeration system. If there is one such system (i.e., a single refrigeration system) in a space conditioning object (i.e., a unit), then the space conditioning object can be called a single-system unit; if there are two or more such systems (i.e., multiple refrigeration systems) in a space conditioning object (i.e., a unit), then the space conditioning object can be called a multi-system unit. For example, if the space conditioning object includes two refrigeration systems, the space conditioning object can be called a dual-system unit. The definition of the refrigeration system emphasizes the integrity of the piping structure. Inside each refrigeration system, according to the difference in the refrigerant circulation path, it can include a compressor refrigeration subsystem (DX) and a fluorine pump refrigeration subsystem (FC).

[0089] The compressor refrigeration subsystem (DX) is comprised of a compressor, fluorine system evaporator, condenser, expansion valve, compressor refrigeration accessories (DX refrigeration accessories), and piping, enabling a complete refrigerant cycle and delivering cooling capacity. The fluorine pump refrigeration subsystem (FC) is a refrigeration cycle consisting of a refrigerant pump (fluorine pump) connected in series with the compressor refrigeration subsystem, sharing the fluorine system evaporator, condenser, expansion valve, refrigeration accessories, and piping. This system enables a complete refrigerant cycle and delivers cooling capacity.

[0090] For example, if Figure 1 As shown in (a), when the space conditioning object is a single-system unit, the space conditioning object may include a refrigeration system, which may include a fluorine pump refrigeration subsystem and a compressor refrigeration subsystem. When the space conditioning object is a multi-system unit, the space conditioning object may include multiple refrigeration systems, each of which may include a fluorine pump refrigeration subsystem and a compressor refrigeration subsystem. Figure 1 Taking the dual-system unit shown in (b) as an example, the dual-system unit can be called a fluorine pump dual-cycle air conditioner. The fluorine pump dual-cycle air conditioner can include two refrigeration systems, and each refrigeration system can include a fluorine pump refrigeration subsystem and a compressor refrigeration subsystem.

[0091] 3. Cooling mode:

[0092] The cooling mode corresponds to the cooling system. The cooling mode can indicate that the space conditioning object needs to start the cooling system. The space conditioning object can cool through the cooling system corresponding to the cooling mode it runs. The cooling mode can include any one of a compressor mode (DX mode), a fluorine pump mode (FC mode), or a mixed mode (MIX mode). Among them, when the space conditioning object runs the compressor mode, the compressor mode corresponds to the compressor cooling subsystem, indicating that the space conditioning object needs to start the compressor cooling subsystem; when the space conditioning object runs the fluorine pump mode, the fluorine pump mode corresponds to the fluorine pump cooling subsystem, indicating that the space conditioning object needs to start the fluorine pump cooling subsystem; when the space conditioning object runs the mixed mode, the space conditioning object is a multi-system unit, the mixed mode corresponds to the compressor cooling subsystem and the fluorine pump cooling subsystem together, indicating that the space conditioning object needs to start the compressor cooling subsystem and the fluorine pump cooling subsystem together.

[0093] Taking a dual-system unit as an example, the space conditioning object can include two cooling systems, namely cooling system 1 and cooling system 2. Cooling system 1 can include a compressor cooling subsystem and a fluorine pump cooling subsystem, and cooling system 2 can include a compressor cooling subsystem and a fluorine pump cooling subsystem. When the space conditioning object runs the compressor mode, the space conditioning object needs to start the compressor cooling subsystem. The space conditioning object can start the compressor cooling subsystem in cooling system 1 alone, or can start the compressor cooling subsystem in cooling system 2 alone, or can start the compressor cooling subsystem in cooling system 1 and cooling system 2 together. Figure 2 Taking (a) in the above as an example, the space conditioning object starts the compressor cooling subsystem in cooling system 1 and cooling system 2 together. When the space conditioning object runs the fluorine pump mode, the space conditioning object needs to start the fluorine pump cooling subsystem. The space conditioning object can start the fluorine pump cooling subsystem in cooling system 1 alone, or can start the fluorine pump cooling subsystem in cooling system 2 alone, or can start the fluorine pump cooling subsystem in cooling system 1 and cooling system 2 together. Figure 2 Taking (b) in the above as an example, the space conditioning object starts the fluorine pump cooling subsystem in cooling system 1 and cooling system 2 together. When the space conditioning object runs the mixed mode, the space conditioning object needs to start the compressor cooling subsystem and the fluorine pump cooling subsystem together. Figure 2 Taking (c) in the above as an example, the space conditioning object starts the fluorine pump cooling subsystem in cooling system 1 and the compressor cooling subsystem in cooling system 2 together.

[0094] Four, exhaust fan:

[0095] The exhaust fan can also be referred to as a condensing fan, which is a refrigeration component in a refrigeration system. The exhaust fan can dissipate heat from the condenser by rotating. In the embodiments of the present application, the control of the space conditioning object specifically refers to the control of the rotating speed of the exhaust fan in the space conditioning object.

[0096] Based on the introduction of the above technical terms, the embodiments of the present application propose a control method of a space conditioning object. The control method of the space conditioning object formulates different exhaust fan control strategies corresponding to different refrigeration modes in which the space conditioning object operates. Different exhaust fan control strategies can be adopted for different refrigeration modes to adjust the rotating speed of the exhaust fan in the space conditioning object. In detail, the space conditioning object can operate in a compressor mode, a hybrid mode and a fluorine pump mode. When the space conditioning object operates in the compressor mode, the exhaust fan in the space conditioning object can be controlled according to the exhaust fan control strategy corresponding to the compressor mode. When the space conditioning object operates in the fluorine pump mode, the exhaust fan in the space conditioning object can be controlled according to the exhaust fan control strategy corresponding to the fluorine pump mode. When the space conditioning object operates in the hybrid mode, the exhaust fan in the space conditioning object can be controlled according to the exhaust fan control strategy corresponding to the hybrid mode. Based on the control method of the space conditioning object, the rotating speed of the exhaust fan is adapted to the refrigeration mode in which the space conditioning object operates. Thus, the energy efficiency of the operation of the space conditioning object can be improved, and the space conditioning object can be operated in a maximum energy-saving mode.

[0097] Next, a control system of a space conditioning object is introduced in combination with the accompanying drawings.

[0098] As shown in Figure 3a The control system of the space conditioning object can include a control device 301 and a space conditioning object 302. The control device 301 and the space conditioning object 302 can be independent of each other. The exhaust fan in the space conditioning object 302 is usually installed outside the space where the space conditioning object is located. The embodiments of the present application do not limit the connection mode between the control device 301 and the space conditioning object 302. The control device 301 and the space conditioning object 302 can establish a direct communication connection through wired communication, or the control device 301 and the space conditioning object 302 can establish an indirect communication connection through wireless communication.

[0099] The control device 301 can be a terminal or a server. The terminal can be a smartphone, a tablet computer, a notebook computer, a desktop computer, a smart speaker, a smart watch, a vehicle-mounted terminal, a smart home appliance, an aircraft, or the like, but is not limited thereto. The server can be a standalone physical server, a server cluster composed of multiple physical servers, or a distributed system, and can also be a cloud server providing cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network), and basic cloud computing services such as big data and artificial intelligence platforms. The control device 301 can provide a visual interface for a manager of the space conditioning object 302, which helps the manager to manage the space conditioning object 302 through the visual interface. For example, the manager can configure the exhaust fan control parameters through the visual interface. For another example, the manager can configure which refrigeration system to start the compressor refrigeration subsystem and which refrigeration system to start the fluorine pump refrigeration subsystem in the mixed mode through the visual interface. For another example, the manager can view the control results of the space conditioning object through the visual interface. And so on.

[0100] In the space conditioning object control system composed of the control device 301 and the space conditioning object 302, the space conditioning object control method can include: the control device 301 can obtain a target refrigeration mode currently running in the space conditioning object 302, the target refrigeration mode corresponding to a target refrigeration system; the control device 301 can predict the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode; the control device 301 can send a control instruction to the space conditioning object 302, the control instruction including the predicted speed; and the space conditioning object 302 can control the exhaust fan in the target refrigeration system to operate based on the predicted speed in the control instruction.

[0101] It can be understood that, Figure 3a The space conditioning object control system shown is only for example, and Figure 3b Another space conditioning object control system is shown. Figure 3a The space conditioning object control system shown is different from Figure 3b The difference between the space conditioning object control system shown and Figure 3a In the space conditioning object control system shown, the control device 301 and the space conditioning object 302 are independent of each other; while in Figure 3bIn the control system of the space conditioning object shown, the control device 301 can be integrated into the space conditioning object 302 as a component of the space conditioning object 302; and, for the control device 301 integrated into the space conditioning object 302, a visual interface can also be provided to the managers of the space conditioning object 302, which helps the managers to manage the space conditioning object 302 through the visual interface.

[0102] Figure 3a and Figure 3b The control systems of the space conditioning objects shown are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0103] Next, the control method of the space adjustment object provided by the embodiment of the present application is introduced in detail with reference to the accompanying drawings.

[0104] The present application embodiment provides a control method for a space regulation object, and the content of the control method for the space regulation object includes: speed prediction logic. The control method for the space regulation object can be executed by a computer device, which can be, for example, a control device 301 in a control system of the space regulation object. Figure 4 As shown, the control method of the space regulation object may include but is not limited to the following steps S401 to S403:

[0105] S401, obtaining the target cooling mode currently being run by the space conditioning object; the space conditioning object cools the space where the space conditioning object is located through the target cooling system corresponding to the target cooling mode; the space conditioning object has multiple cooling modes, and each cooling mode corresponds to its own exhaust fan control strategy.

[0106] The space conditioning object can have multiple refrigeration modes, which can include a compressor mode, a fluorine pump mode, and a hybrid mode, each of which can correspond to a respective air exhaust fan control strategy. The target refrigeration mode currently running by the space conditioning object can be any one of the multiple refrigeration modes. When the target refrigeration mode includes the compressor mode, the target refrigeration system corresponding to the compressor mode can include a compressor refrigeration subsystem, and the space conditioning object can perform refrigeration on the space where the space conditioning object is located through the compressor refrigeration subsystem; when the target refrigeration mode includes the fluorine pump mode, the target refrigeration system corresponding to the fluorine pump mode can include a fluorine pump refrigeration subsystem, and the space conditioning object can perform refrigeration on the space where the space conditioning object is located through the fluorine pump refrigeration subsystem; when the target refrigeration mode includes the hybrid mode, the target refrigeration system corresponding to the compressor mode can include the compressor refrigeration subsystem and the fluorine pump refrigeration subsystem, and the space conditioning object can perform refrigeration on the space where the space conditioning object is located through the compressor refrigeration subsystem and the fluorine pump refrigeration subsystem.

[0107] S402, according to the air exhaust fan control strategy corresponding to the target refrigeration mode, predicting the speed of the air exhaust fan in the target refrigeration system.

[0108] In any refrigeration mode (i.e., the target refrigeration mode), the speed prediction logic can include: obtaining air exhaust fan control parameters configured for the target refrigeration mode; obtaining working condition information of the target refrigeration system; and based on the air exhaust fan control parameters and the working condition information, predicting the speed of the air exhaust fan in the target refrigeration system according to the air exhaust fan control strategy corresponding to the target refrigeration mode.

[0109] The working condition information of the target refrigeration system can be used to reflect the working condition of the target refrigeration system. The working condition of the target refrigeration system can include the working environment condition of the target refrigeration system and the working load condition of the target refrigeration system; the working environment condition may, for example, include the indoor-outdoor temperature difference, the outer ring temperature (the outer ring temperature refers to the value of the condenser inlet air temperature at the time when the air exhaust fan is turned on), etc.; the working load condition may, for example, include the condensing pressure (the condensing pressure refers to the pressure generated when the refrigerant changes from a gaseous state to a liquid state in the condenser), refrigeration demand information (the refrigeration demand information (CFC) refers to the result calculated by a certain calculation formula from the difference between the indoor temperature detection value and the corresponding set value), etc.; that is, the working condition information of the target refrigeration system can be used to reflect the working environment condition and the working load condition of the target refrigeration system.

[0110] In detail, when the target refrigeration mode includes the compressor mode, the target refrigeration system corresponding to the compressor mode can include a compressor refrigeration subsystem, and the rotation speed prediction logic of the exhaust fan in the compressor refrigeration subsystem can include: establishing a mapping relationship between the condensing pressure and the rotation speed of the exhaust fan, and predicting the rotation speed of the exhaust fan in the compressor refrigeration subsystem based on the mapping relationship between the condensing pressure and the rotation speed of the exhaust fan and the real-time detected condensing pressure.

[0111] When the target refrigeration mode includes the fluorine pump mode, the target refrigeration system corresponding to the fluorine pump mode can include a fluorine pump refrigeration subsystem, and the rotation speed prediction logic of the exhaust fan in the fluorine pump refrigeration subsystem can include: establishing a mapping relationship between the refrigeration demand information and the rotation speed of the exhaust fan (here, the mapping relationship is distinguished from the mapping relationship of the single-unit system and the mapping relationship of the multi-unit system), and predicting the rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem based on the mapping relationship between the refrigeration demand information and the rotation speed of the exhaust fan and the real-time detected refrigeration demand information.

[0112] When the target refrigeration mode includes the mixed mode, the target refrigeration system corresponding to the mixed mode can include a compressor refrigeration subsystem and a fluorine pump refrigeration subsystem. The rotation speed prediction logic of the exhaust fan in the fluorine pump refrigeration subsystem in the mixed mode is the same as the rotation speed prediction logic of the exhaust fan in the fluorine pump refrigeration subsystem in the fluorine pump mode, and can include: establishing a mapping relationship between the refrigeration demand information and the rotation speed of the exhaust fan (here, the mapping relationship specifically refers to the mapping relationship of the single-unit system in the fluorine pump mode), and predicting the rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem based on the mapping relationship between the refrigeration demand information and the rotation speed of the exhaust fan and the real-time detected refrigeration demand information. The rotation speed prediction logic of the exhaust fan in the compressor refrigeration subsystem in the mixed mode is the same as the rotation speed prediction logic of the exhaust fan in the compressor refrigeration subsystem in the compressor mode, and can include: establishing a mapping relationship between the condensing pressure and the rotation speed of the exhaust fan, and predicting the rotation speed of the exhaust fan in the compressor refrigeration subsystem based on the mapping relationship between the condensing pressure and the rotation speed of the exhaust fan and the real-time detected condensing pressure.

[0113] S403, based on the predicted rotation speed, controlling the exhaust fan in the target refrigeration system to operate.

[0114] In detail, after the rotation speed is predicted, the control device can generate a control instruction according to the predicted rotation speed, and the control instruction carries the predicted rotation speed; the control device can send the control instruction to the space conditioning object. The space conditioning object can execute the control instruction, and control the exhaust fan in the target refrigeration system to operate based on the control instruction.

[0115] It should be noted that the rotation speed prediction and the operation control of the exhaust fan are performed in units of sampling time. For example, at the kth sampling time, the rotation speed of the exhaust fan in the target refrigeration system can be predicted according to the exhaust fan control strategy corresponding to the target refrigeration mode, and the rotation speed of the exhaust fan in the target refrigeration system at the kth sampling time can be obtained. The rotation speed of the exhaust fan in the target refrigeration system can be controlled based on the rotation speed at the kth sampling time. Through the control mode in units of sampling time, the rotation speed control of the exhaust fan can be more intelligent and more real-time, and the rotation speed control can be adapted to the real-time working environment and the real-time working load of the target refrigeration system. In addition, the time interval between any two adjacent sampling times can also be adjusted according to the operation energy efficiency requirement of the space conditioning object, so that the time interval between any two adjacent sampling times is adapted to the operation energy efficiency requirement of the space conditioning object.

[0116] In the embodiments of the present application, the rotation speed of the exhaust fan can be adjusted, and different exhaust fan control strategies can be used to predict the rotation speed of the exhaust fan in different refrigeration modes, so that the rotation speed of the exhaust fan is adapted to the refrigeration mode of the space conditioning object. This can improve the operation energy efficiency of the space conditioning object. In addition, in the rotation speed prediction process, different working environment conditions and different working load conditions of the refrigeration system also need to be considered, so that the unit can quickly ensure better energy efficiency under different environmental conditions and large load change range. In addition, through the control mode in units of sampling time, the rotation speed control of the exhaust fan can be more intelligent and more real-time, and the rotation speed control can be adapted to the real-time working condition of the target refrigeration system.

[0117] The embodiments of the present application provide a control method of a space conditioning object. The control method of the space conditioning object includes the rotation speed control logic of the exhaust fan control strategy under different refrigeration modes (including compressor mode, fluorine pump mode and mixed mode). The control method of the space conditioning object can be executed by a computer device, for example, a control device 301 in the control system of the space conditioning object. As shown in Figure 5 The control method of the space conditioning object can include but is not limited to the following steps S501-S505:

[0118] S501, obtaining a target refrigeration mode currently running by the space conditioning object; the space conditioning object performs refrigeration on the space where the space conditioning object is located through a target refrigeration system corresponding to the target refrigeration mode; the space conditioning object has multiple refrigeration modes, and each refrigeration mode corresponds to a respective exhaust fan control strategy.

[0119] In the embodiments of the present application, the execution process of step S501 is the same as the above Figure 4The execution process of step S401 in the illustrated embodiment is the same, and details can be referred to the above description Figure 4 The relevant description of step S401 in the illustrated embodiment will not be repeated here.

[0120] S502, obtain the exhaust fan control parameter configured for the target refrigeration mode.

[0121] S503, obtain the working condition information of the target refrigeration system, the working condition information of the target refrigeration system being used to reflect the working condition of the target refrigeration system.

[0122] S504, based on the exhaust fan control parameter and the working condition information, predict the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode.

[0123] The content of steps S502-S504 relates to the speed prediction logic under any refrigeration mode (i.e. the target refrigeration mode), and the speed prediction logic under different refrigeration modes will be introduced as follows:

[0124] I. Speed prediction logic under fluorine pump mode:

[0125] When the target refrigeration mode currently running by the space conditioning object includes the fluorine pump mode, the target refrigeration system corresponding to the fluorine pump mode includes the fluorine pump refrigeration subsystem. In the fluorine pump mode, the speed threshold of the exhaust fan can be limited according to the indoor-outdoor temperature difference, the mapping relationship between the refrigeration demand information and the speed of the exhaust fan can be established, and in the speed range composed of the limited speed threshold (hereinafter referred to as the limited speed threshold) and the minimum speed of the fluorine pump mode (the minimum speed of the fluorine pump mode refers to the minimum speed of the exhaust fan in the fluorine pump mode), the real-time detected refrigeration demand information can be mapped to the corresponding speed according to the mapping relationship, and the speed of the exhaust fan is automatically adjusted according to the refrigeration demand information.

[0126] In detail, the working condition information can include the indoor-outdoor temperature difference at the k-th sampling time and the refrigeration demand information at the k-th sampling time. In the running process of the fluorine pump mode, the logic of speed prediction can include: speed threshold limiting phase (after starting the exhaust fan in the fluorine pump refrigeration subsystem, based on the exhaust fan control parameter and the indoor-outdoor temperature difference at the k-th sampling time (the indoor-outdoor temperature difference at the k-th sampling time can be represented as indoor-outdoor temperature difference (k)), the speed threshold of the exhaust fan in the fluorine pump refrigeration subsystem at the k-th sampling time is limited, and the limited speed threshold at the k-th sampling time (the limited speed threshold at the k-th sampling time can be represented as the limited speed threshold of the exhaust fan (k)) is obtained) and refrigeration demand mapping phase (within the limited speed threshold at the k-th sampling time, the speed of the exhaust fan in the fluorine pump refrigeration subsystem at the k-th sampling time is determined according to the exhaust fan control parameter and the refrigeration demand information at the k-th sampling time). The speed threshold limiting phase and the refrigeration demand mapping phase will be introduced in detail as follows:

[0127] (1) The rotation speed threshold value limiting stage:

[0128] Specifically, the air exhaust fan control parameter can include a rotation speed range of the fluorine pump mode and an indoor-outdoor temperature difference range; the rotation speed range of the fluorine pump mode can include a minimum rotation speed of the fluorine pump mode, a rotation speed threshold value limiting lower boundary, and a rated rotation speed of the fluorine pump mode (FC-air exhaust fan rated rotation speed), the minimum rotation speed of the fluorine pump mode refers to the minimum rotation speed of the air exhaust fan in the fluorine pump mode, the rated rotation speed of the fluorine pump mode refers to the rated rotation speed of the air exhaust fan in the fluorine pump mode, and the rotation speed threshold value limiting lower boundary refers to the lower limit of the rotation speed threshold value limitation; the indoor-outdoor temperature difference range can include an indoor-outdoor temperature difference upper limit and an indoor-outdoor temperature difference lower limit. The execution logic of the rotation speed threshold value limiting stage can include: establishing a first mapping relationship between the indoor-outdoor temperature difference and the limited rotation speed threshold value based on the rotation speed range of the fluorine pump mode and the indoor-outdoor temperature difference range; and mapping the indoor-outdoor temperature difference at the kth sampling time to obtain the limited rotation speed threshold value at the kth sampling time based on the first mapping relationship.

[0129] Further, the first mapping relationship between the indoor-outdoor temperature difference and the limited rotation speed threshold value can be as shown in FIG. 1, and it can be seen that: when the indoor-outdoor temperature difference is less than the indoor-outdoor temperature difference lower limit, the limited rotation speed threshold value is equal to the rated rotation speed of the fluorine pump mode; when the indoor-outdoor temperature difference is greater than the indoor-outdoor temperature difference upper limit, the limited rotation speed threshold value is equal to the rotation speed threshold value limiting lower boundary; and when the indoor-outdoor temperature difference is greater than or equal to the indoor-outdoor temperature difference lower limit and less than or equal to the indoor-outdoor temperature difference upper limit, the relationship between the indoor-outdoor temperature difference and the limited rotation speed threshold value can be expressed as the following formula 1: Figure 6

[0130] Limited rotation speed threshold value = A1*indoor-outdoor temperature difference + B1 (formula 1)

[0131] That is, the limited rotation speed threshold value of the air exhaust fan is dynamically adjusted with the indoor-outdoor temperature difference within the range [rotation speed threshold value limiting lower boundary, rated rotation speed of fluorine pump mode (FC-air exhaust fan rated rotation speed)], and the boundary value is taken when exceeding the range, and the intermediate value is calculated according to the above formula 1. In the above formula 1:

[0132] Indoor-outdoor temperature difference = return air temperature (Tr) - condenser inlet air temperature (Toa);

[0133] A1: first coefficient, = (rotation speed threshold value limiting lower boundary - rated rotation speed of fluorine pump mode (FC-air exhaust fan rated rotation speed)) / (indoor-outdoor temperature difference upper limit - indoor-outdoor temperature difference lower limit);

[0134] B1 = rated rotation speed of fluorine pump mode (FC-air exhaust fan rated rotation speed) - indoor-outdoor temperature difference lower limit*A1.

[0135] (2) The refrigeration demand mapping stage:

[0136] ​Specifically, the exhaust fan control parameter can further include a demand mapping control parameter and a minimum rotating speed of the fluorine pump mode. The logic of the refrigeration demand mapping stage can include: establishing a second mapping relationship between refrigeration demand information and the rotating speed of the exhaust fan based on the minimum rotating speed of the fluorine pump mode, a limited rotating speed threshold at the kth sampling moment, and the demand mapping control parameter; and mapping the refrigeration demand information at the kth sampling moment based on the second mapping relationship to obtain the rotating speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling moment.

[0137] It should be noted that, in the refrigeration demand mapping stage, the logic of the refrigeration demand mapping stage is the same for the case that different numbers of fluorine pump refrigeration subsystems are started, but the demand mapping control parameter is different, and the refrigeration needs to be adjusted and performed respectively according to different demand mapping control parameters. In the fluorine pump mode, the number of started fluorine pump refrigeration subsystems can be single or multiple, and the demand mapping control parameter can be distinguished according to the number of started fluorine pump refrigeration subsystems. When the number of started fluorine pump refrigeration subsystems is single, the demand mapping control parameter can include a single-system demand mapping control parameter; the single-system demand mapping control parameter can include a single-system demand mapping lower limit and a single-system demand mapping upper limit. When the number of started fluorine pump refrigeration subsystems is multiple, the demand mapping control parameter can include a multi-system demand mapping control parameter; taking the case that the number of started fluorine pump refrigeration subsystems is two as an example, the demand mapping control parameter can include a double-system demand mapping control parameter, and the double-system demand mapping control parameter can include a double-system demand mapping lower limit and a double-system demand mapping upper limit.

[0138] Further, the exhaust fan control parameter can further include a refrigeration demand control parameter, and the refrigeration demand information at the kth sampling moment can be obtained by control calculation on the ambient temperature of the fluorine pump refrigeration subsystem based on the refrigeration demand control parameter.

[0139] The control calculation specifically refers to PID (Proportional-Integral-Derivative Control) calculation, and the control principle of the PID calculation is: a control deviation is formed according to a given value and an actual output value, the deviation is linearly combined according to proportion, integration and differentiation to form a control amount, and the controlled object is controlled. The ambient temperature can include a supply air temperature or a return air temperature, and when the unit temperature and humidity control mode selects the supply air temperature / return air temperature control, the refrigeration demand information is calculated according to the difference between the detection value of the supply air temperature / return air temperature and the set value of the supply air temperature / return air temperature.

[0140] Based on the introduction of the PID calculation, the determination process of the refrigeration demand control information at the k-th sampling moment can include: determining a first temperature difference between the ambient temperature at the k-th sampling moment and the set ambient temperature, and a second temperature difference between the ambient temperature at the (k-1)-th sampling moment and the set ambient temperature; based on the refrigeration demand control parameters, performing control calculation on the first temperature difference and the second temperature difference to obtain the refrigeration demand information at the k-th sampling moment. The above determination process is shown in the following formula 2:

[0141]

[0142] In the above formula 2, CFC(k) represents the refrigeration demand information at the k-th sampling moment, which is equal to PID(k), and PID(k) represents the PID calculation value at the k-th sampling moment; e(k) represents the deviation between the ambient temperature (supply air temperature or return air temperature) at the k-th sampling moment and the set ambient temperature (i.e. the first temperature difference); e(k-1) represents the deviation between the ambient temperature (supply air temperature or return air temperature) at the (k-1)-th sampling moment and the set ambient temperature (i.e. the second temperature difference); the refrigeration demand proportional coefficient (K p ), the refrigeration demand integral coefficient (T i ), the refrigeration demand differential coefficient (T d ), and the refrigeration demand calculation period (T, unit: seconds (s)) are all refrigeration demand control parameters.

[0143] It should be noted that in the refrigeration demand mapping stage, for the case that different numbers of fluorine pump refrigeration subsystems are started, the determination logic of the refrigeration demand information is the same, but the refrigeration demand control parameters are different, and the refrigeration demand information needs to be determined respectively according to different refrigeration demand control parameters. In the fluorine pump mode, the number of started fluorine pump refrigeration subsystems can be single or multiple, and the refrigeration demand control parameters can be distinguished according to the number of started fluorine pump refrigeration subsystems. When the number of started fluorine pump refrigeration subsystems is single, the refrigeration demand control parameters can include single-system refrigeration demand control parameters, and the single-system refrigeration demand control parameters can include: single-system refrigeration demand proportional coefficient (single-system K p ), single-system refrigeration demand integral coefficient (single-system T i ), single-system refrigeration demand differential coefficient (single-system T d ), and single-system refrigeration demand calculation period (single-system T). When the number of fluorine pump refrigeration subsystems is multiple, the refrigeration demand control parameters can include multi-system refrigeration demand control parameters. Taking the case that the number of fluorine pump refrigeration subsystems is two as an example, the refrigeration demand control parameters can include double-system refrigeration demand control parameters; the double-system refrigeration demand control parameters can include: double-system refrigeration demand proportional coefficient (double-system K p ), double-system refrigeration demand integral coefficient (double-system Ti ), dual system cooling demand differential coefficient (dual system T d ), and dual-system cooling demand calculation period (dual-system T).

[0144] The above-mentioned process for determining the refrigeration demand information is a process for determining the refrigeration demand information based on the ambient temperature. Optionally, the process for determining the refrigeration demand information can also be a process for determining the refrigeration demand information based on the refrigerant flow rate and enthalpy difference. In detail, the process for determining the refrigeration demand control information at the kth sampling moment can also include: measuring the refrigerant pressure and temperature at the inlet and outlet of the unit evaporator (i.e., the evaporator of the fluorine pump refrigeration subsystem); calculating the enthalpy difference based on the refrigerant pressure and temperature; calculating the refrigerant flow rate based on the fluorine pump speed and head; and determining the refrigeration demand information based on the enthalpy difference and the refrigerant flow rate.

[0145] In summary, for the cooling demand mapping stage, the second mapping relationship between cooling demand information and exhaust fan speed is as follows: Figure 7 As shown, it can be seen that: the fluorine pump mode can start at least one fluorine pump refrigeration subsystem. When different numbers of fluorine pump refrigeration subsystems are started, the mapping relationship between the refrigeration demand information and the exhaust fan speed is not passed. The mapping relationship is shown in Table 1 below:

[0146] Table 1

[0147]

[0148] When the number of enabled fluorine pump refrigeration subsystems = 1, and the number of enabled compressor refrigeration subsystems = 0, the exhaust fan speed can be automatically adjusted according to the single system demand mapping control parameters and the refrigeration demand PID algorithm, as shown in Table 2 below:

[0149] Table 2

[0150]

[0151]

[0152] When the number of enabled fluorine pump refrigeration subsystems = 2, and the number of enabled compressor refrigeration subsystems = 0, the exhaust fan speed can be automatically adjusted according to the dual-system demand mapping control parameters and the refrigeration demand PID algorithm, as shown in Table 3 below:

[0153] Table 3

[0154]

[0155] Optionally, the rotation speed threshold value limiting stage can be turned on or off as needed. Specifically, an enablement (i.e., turning on) or disablement (i.e., turning off) interface of the rotation speed threshold value limiting stage can be reserved, and the rotation speed threshold value limiting stage can be turned on or off in specific scenarios. In the case of turning on the rotation speed threshold value limiting stage, the rotation speed threshold value limiting stage can be performed first, the maximum rotation speed of the exhaust fan can be limited according to the indoor-outdoor temperature difference, then a mapping relationship between the refrigeration demand information and the rotation speed of the exhaust fan can be established, and the real-time detected refrigeration demand information can be mapped to the corresponding rotation speed according to the mapping relationship within the rotation speed range composed of the limited maximum rotation speed and the minimum rotation speed of the fluorine pump mode. After turning on the rotation speed threshold value limiting stage in the fluorine pump mode, by using the exhaust fan fluorine pump maximum rotation speed limiting dynamic adjustment method, the operation range of the exhaust fan of the fluorine pump system is effectively limited according to different outdoor temperatures, the rapid and stable control of the unit is ensured, and the cold quantity fluctuation period is shortened. In the case of turning off the rotation speed threshold value limiting stage, a mapping relationship between the refrigeration demand information and the rotation speed of the exhaust fan can be established, and the real-time detected refrigeration demand information can be mapped to the corresponding rotation speed within the rotation speed range composed of the rated rotation speed of the fluorine pump mode and the minimum rotation speed of the fluorine pump mode. After turning off the maximum rotation speed limitation in the fluorine pump mode, the time cost consumed by the maximum rotation speed limitation is saved during the rotation speed prediction of the exhaust fan, the rotation speed prediction efficiency is improved, and the control scene with high requirement for the response speed of the rotation speed control can be better adapted.

[0156] The above related content of the fluorine pump mode introduces the rotation speed control of the exhaust fan in the fluorine pump refrigeration subsystem during the operation of the fluorine pump mode of the space conditioning object. In the fluorine pump mode, the refrigeration demand information (CFC) is associated with the refrigeration capacity through different mapping curves of single-unit systems and multi-unit systems (taking a double-unit system as an example), CFC=100% means that the unit outputs at the rated (100%) refrigeration capacity, the refrigeration demand information is associated with the rotation speed of the exhaust fan, the rapid response of the unit under different loads is realized, and different mapping curves are used when different numbers of fluorine pump refrigeration subsystems are turned on, so that the rotation speed adjustment of the exhaust fan in the fluorine pump refrigeration subsystem is more accurate when different numbers of fluorine pump refrigeration subsystems are turned on.

[0157] It should be noted that when the fluorine pump refrigeration subsystem is turned on, the initial rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem can also be determined, and the fluorine pump refrigeration subsystem can be turned on according to the determined initial rotation speed. In detail, the initial rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem can be predicted based on the exhaust fan control parameters and the working condition information to obtain a first initial rotation speed, and the exhaust fan in the fluorine pump refrigeration subsystem can be started according to the first initial rotation speed.

[0158] The exhaust fan control parameters can further include an outer ring temperature range of the fluorine pump mode and a rotating speed range of the fluorine pump mode, the outer ring temperature range of the fluorine pump mode can include a lower limit of the outer ring temperature of the fluorine pump mode and an upper limit of the outer ring temperature of the fluorine pump mode, and the rotating speed range of the fluorine pump mode can include a rated rotating speed of the fluorine pump mode and a minimum rotating speed of the fluorine pump mode; and the working condition information can further include a current outer ring temperature of the fluorine pump refrigeration subsystem. Based on this, the process of predicting the initial rotating speed of the exhaust fan in the fluorine pump refrigeration subsystem based on the exhaust fan control parameters and the working condition information to obtain the first initial rotating speed can include: establishing a third mapping relationship between the outer ring temperature and the initial rotating speed according to the outer ring temperature range of the fluorine pump mode and the rotating speed range of the fluorine pump mode; and mapping the current outer ring temperature according to the third mapping relationship to obtain the first initial rotating speed.

[0159] Further, the third mapping relationship between the outer ring temperature and the initial rotating speed in the fluorine pump mode can be as shown in FIG. 3. Figure 8 As can be seen from FIG. 3, when the outer ring temperature is less than the lower limit of the outer ring temperature of the fluorine pump mode, the initial rotating speed is equal to the minimum rotating speed of the fluorine pump mode; when the outer ring temperature is greater than the upper limit of the outer ring temperature of the fluorine pump mode, the initial rotating speed is equal to the rated rotating speed of the fluorine pump mode; and when the outer ring temperature is greater than or equal to the lower limit of the outer ring temperature of the fluorine pump mode and less than or equal to the upper limit of the outer ring temperature of the fluorine pump mode, the relationship between the outer ring temperature and the initial rotating speed of the exhaust fan can be expressed as the following formula 3:

[0160] The initial rotating speed of the fluorine pump mode (i.e., the first initial rotating speed) = A4*outer ring temperature + B4 (formula 3)

[0161] That is, the initial rotating speed of the exhaust fan in the fluorine pump mode is dynamically adjusted within the range [minimum rotating speed of the fluorine pump mode, rated rotating speed of the fluorine pump mode] with the outer ring temperature, is determined according to the minimum rotating speed of the fluorine pump mode when it is lower than the minimum rotating speed of the fluorine pump mode, is determined according to the rated rotating speed of the fluorine pump mode when it is higher than the rated rotating speed of the fluorine pump mode, and is calculated according to the above formula 3 in the middle. In the above formula 3:

[0162] The outer ring temperature is the value of the condenser inlet air temperature at the time when the exhaust fan is turned on.

[0163] A4 is a first coefficient, = (rated rotating speed of the fluorine pump mode (FC-exhaust fan rated rotating speed) - minimum rotating speed of the fluorine pump mode) / (upper limit of the outer ring temperature of the fluorine pump mode - lower limit of the outer ring temperature of the fluorine pump mode);

[0164] B4 is a constant, corresponding to the initial rotating speed of the exhaust fan of the fluorine pump at 0℃ outer ring temperature, = minimum rotating speed of the fluorine pump mode + lower limit of the outer ring temperature of the fluorine pump mode * A4.

[0165] II. Rotating speed prediction logic in the compressor mode:

[0166] When the target refrigeration mode currently running by the space conditioning object includes the compressor mode, the target refrigeration system corresponding to the compressor mode includes the compressor refrigeration subsystem. In the compressor mode, a coupling control is proposed, where a relationship is set, when facing different loads and outdoor temperatures, to ensure the energy efficiency optimization of the space conditioning object, the required condensing pressure needs to be optimized, that is, the required exhaust fan speed is also different, and a matching relationship of the exhaust fan speed and the target condensing pressure can be derived according to the relationship between the actual exhaust fan speed and the set limited minimum speed and the set limited speed threshold. The specific implementation process is: PID adjustment is performed according to the difference between the actual detected condensing pressure and the target condensing pressure, when the condensing fan speed increases, the condensing pressure will decrease, but the condensing fan speed cannot be too high, the unit power will increase, so there is a balance adjustment relationship here, the target condensing pressure value is appropriately reduced, so that the condensing fan is maintained at a reasonable speed, and the optimization is achieved.

[0167] Wherein, PID refers to the adjustment value of the exhaust fan control speed in each judgment period, for example, if the actual detected condensing pressure is higher than the target condensing pressure, the control speed of the condensing fan needs to be increased, and the increase is calculated by PID adjustment; if the actual detected condensing pressure is lower than the target condensing pressure, the control speed of the condensing fan needs to be reduced, and the reduction is calculated by PID adjustment.

[0168] In detail, the working condition information can include the actual condensing pressure (i.e. the actual detected condensing pressure). In the running process of the compressor mode, the speed prediction logic can include: a target condensing pressure automatic adjustment stage (predicting the target condensing pressure of the compressor refrigeration subsystem based on the exhaust fan control parameter) and a condensing pressure mapping stage (determining the speed of the exhaust fan in the compressor refrigeration subsystem based on the exhaust fan control parameter and the difference between the actual condensing pressure and the predicted target condensing pressure). The target condensing pressure automatic adjustment stage and the condensing pressure mapping stage are introduced as follows:

[0169] (1) Target condensing pressure automatic adjustment stage:

[0170] Specifically, the exhaust fan control parameter can include a target condensing pressure initial value, a target condensing pressure range, and a limited speed range of the compressor mode. The execution logic of the target condensing pressure automatic adjustment stage can include: determining the target condensing pressure initial value as the target condensing pressure; and adjusting the target condensing pressure according to the relationship between the exhaust fan speed in the set change period and the limited speed range of the compressor mode within the target condensing pressure range.

[0171] Furthermore, the target condensing pressure range may include a target condensing pressure upper boundary and a target condensing pressure lower boundary; the limited speed range of the compressor mode may include a limited speed threshold of the compressor mode and a limited minimum speed of the compressor mode, the limited speed threshold of the compressor mode refers to the maximum speed limited by the exhaust fan in the compressor mode, and the limited minimum speed of the compressor mode refers to the minimum speed limited by the exhaust fan in the compressor mode. For the exhaust fan control parameters involved in the automatic adjustment stage of the target condensing pressure, the optimal energy efficiency point / range of the unit under the dynamic condensing pressure setting (i.e., the optimal value of the exhaust fan control parameters involved in the automatic adjustment stage of the target condensing pressure) can be verified and sought through enthalpy difference testing. An exemplary parameter configuration is shown in Table 4 below:

[0172] Table 4

[0173]

[0174] The execution logic of the target condensing pressure automatic adjustment stage is as follows: Figure 9 As shown, it can specifically include: determining the initial value of the target condensing pressure as the target condensing pressure; the target condensing pressure is within the range [target condensing pressure lower boundary, target condensing pressure upper boundary]; if the exhaust fan speed within the set change period is less than the limited minimum speed of the compressor mode, the target condensing pressure can be reduced (for example, reduced by 1 bar (a unit of pressure)); if the exhaust fan speed within the set change period is greater than the limited speed threshold of the compressor mode, the target condensing pressure can be increased (for example, increased by 1 bar).

[0175] It should be noted that if the exhaust fan is shut down, the target condensing pressure will be restored to the initial value of the target condensing pressure, and will be dynamically adjusted again after the exhaust fan is turned on.

[0176] (2) Condensation pressure mapping stage:

[0177] Specifically, the exhaust fan control parameter can further include a rotating speed control parameter; the working condition information can further include the rotating speed of the exhaust fan in the compressor refrigeration subsystem at the (k-1)th sampling moment; the target condensing pressure can include the target condensing pressure at the kth sampling moment and the target condensing pressure at the (k-1)th sampling moment; the actual condensing pressure can include the actual condensing pressure at the kth sampling moment and the actual condensing pressure at the (k-1)th sampling moment. The execution logic of the condensing pressure mapping stage can include: determining a first condensing pressure difference between the actual condensing pressure at the kth sampling moment and the target condensing pressure at the kth sampling moment, and a second condensing pressure difference between the actual condensing pressure at the (k-1)th sampling moment and the target condensing pressure at the (k-1)th sampling moment; performing control calculation on the first condensing pressure difference and the second condensing pressure difference based on the rotating speed control parameter to obtain a rotating speed adjustment value at the kth sampling moment; and adjusting the rotating speed at the (k-1)th sampling moment according to the rotating speed adjustment value at the kth sampling moment to obtain the rotating speed of the exhaust fan in the compressor refrigeration subsystem at the kth sampling moment.

[0178] Further, for the condensing pressure mapping stage, the mapping relationship between the condensing pressure and the rotating speed of the exhaust fan is as shown in FIG. 3. Figure 10 As can be seen from FIG. 3, the difference between the actual detected condensing pressure and the target condensing pressure can be mapped to a rotating speed adjustment value within the range [minimum rotating speed of the compressor mode, rated rotating speed of the compressor mode (DX-exhaust fan rated rotating speed)], and the rotating speed of the exhaust fan is adjusted based on the rotating speed adjustment value; when the actual detected condensing pressure is higher than the target condensing pressure, the control rotating speed of the condensing fan needs to be increased, i.e., PID loading needs to be performed; when the actual detected condensing pressure is lower than the target condensing pressure, the control rotating speed of the condensing fan needs to be decreased, i.e., PID unloading needs to be performed. The specific relationship mapping between the condensing pressure and the rotating speed of the exhaust fan is shown in Table 5.

[0179] Table 5

[0180]

[0181]

[0182] In the above Table 5, e(k) is the condensing pressure control deviation at the (k-1)th moment, i.e., the first condensing pressure difference between the actual condensing pressure at the kth sampling moment and the target condensing pressure at the kth sampling moment; e(k-1) is the condensing pressure control deviation at the (k-1)th moment, i.e., the second condensing pressure difference between the actual condensing pressure at the (k-1)th sampling moment and the target condensing pressure at the (k-1)th sampling moment; PID(k) represents the rotating speed adjustment value at the kth sampling moment; u(k-1) represents the rotating speed at the (k-1)th sampling moment; u(k) represents the rotating speed at the kth sampling moment. The control proportional coefficient (K p), control integral time (T i ), control derivative coefficient (T d ) of the compressor mode, and control regulation period (T) of the compressor mode are all the rotating speed control parameters.

[0183] The above related content of the compressor mode introduces the rotating speed control of the exhaust fan in the compressor refrigeration subsystem in the process that the space conditioning object runs in the compressor mode. In the compressor mode, the condensing pressure target value automatic PID regulation is adopted to detect the high pressure condition of the refrigeration system in real time, to ensure the safe operation of the unit and the rapid response. When the pressure is too high, an advance prediction is made to perform the regulation function. Compared with the conventional processing method, the exhaust fan runs at a fixed frequency, which cannot control the condensing pressure. The conventional variable frequency control is to control the condensing pressure according to a certain interval or a fixed regulation rate, which may cause problems such as overshoot and untimely regulation. The PID control of the present application embodiment is adopted to realize the stable control of the condensing pressure, thereby avoiding the risk of uncontrolled condensing pressure.

[0184] It should be noted that, as shown in Figure 10 , the compressor mode can further control the operation of the exhaust fan in the compressor refrigeration subsystem by setting the exhaust fan compressor operation start pressure and the exhaust fan compressor operation stop pressure. After starting the exhaust fan in the compressor refrigeration subsystem, the actual condensing pressure can be compared with the exhaust fan compressor operation start pressure. If the actual condensing pressure is greater than or equal to the exhaust fan compressor operation start pressure (i.e., Pc ∈ [exhaust fan compressor operation start pressure, +∞)), the target condensing pressure automatic regulation stage and the condensing pressure mapping stage can be triggered to be executed.

[0185] In addition, the EEV (Electronic Expansion Valve) is actuated according to the condensing pressure to determine whether it needs to be started. Specifically, when the space conditioning object is in the state from shutdown to startup, if the actual condensing pressure is less than the exhaust fan compressor operation start pressure, the exhaust fan can not be started. When the space conditioning object is in the running state, if the actual condensing pressure is less than the exhaust fan compressor operation stop pressure (i.e., Pc (actual condensing pressure) ∈ (-∞, exhaust fan compressor operation stop pressure)), the exhaust fan can be turned off. If the actual condensing pressure is greater than or equal to the exhaust fan compressor operation stop pressure and less than the exhaust fan compressor operation start pressure (i.e., Pc ∈ [exhaust fan compressor operation stop pressure, exhaust fan compressor operation start pressure]), if the current exhaust fan is in the running state, the minimum rotating speed of the compressor mode can be maintained unchanged; if the current exhaust fan is in the shutdown state, the exhaust fan can be maintained in the stop state.

[0186] It should be noted that when the press refrigeration subsystem is started, the initial rotating speed of the exhaust fan in the press refrigeration subsystem can also be determined, and the press refrigeration subsystem is started according to the determined initial rotating speed. In detail, the initial rotating speed of the exhaust fan in the press refrigeration subsystem can be predicted based on the exhaust fan control parameter and the working condition information to obtain a second initial rotating speed, and the exhaust fan in the press refrigeration subsystem can be started according to the second initial rotating speed.

[0187] The exhaust fan control parameter can further include a compressor mode outer ring temperature range and a compressor mode rated rotating speed range. The compressor mode outer ring temperature range can include a compressor mode outer ring temperature lower limit and a compressor mode outer ring temperature upper limit. The compressor mode rated rotating speed range can include a compressor mode rated rotating speed and a compressor mode minimum rotating speed. The working condition information can further include a current outer ring temperature of the press refrigeration subsystem. Based on this, the process of predicting the initial rotating speed of the exhaust fan in the press refrigeration subsystem based on the exhaust fan control parameter and the working condition information to obtain a second initial rotating speed can include: establishing a fourth mapping relationship between the outer ring temperature and the initial rotating speed according to the compressor mode outer ring temperature range and the compressor mode rated rotating speed range; and mapping the current outer ring temperature according to the fourth mapping relationship to obtain the second initial rotating speed.

[0188] Further, the fourth mapping relationship between the outer ring temperature and the initial rotating speed in the compressor mode is as shown in Figure 11 It can be seen that when the outer ring temperature is less than the compressor mode outer ring temperature lower limit, the initial rotating speed is equal to the compressor mode minimum rotating speed. When the outer ring temperature is greater than the compressor mode outer ring temperature upper limit, the initial rotating speed is equal to the compressor mode rated rotating speed. When the outer ring temperature is greater than or equal to the compressor mode outer ring temperature lower limit and less than or equal to the compressor mode outer ring temperature upper limit, the relationship between the outer ring temperature and the initial rotating speed of the exhaust fan can be expressed as the following formula 4.

[0189] The initial rotating speed of the compressor mode (i.e. the second initial rotating speed) = A5*outer ring temperature + B5 (formula 4)

[0190] That is, the initial rotating speed of the exhaust fan in the compressor mode is dynamically adjusted with the outer ring temperature within the range [compressor mode minimum rotating speed, compressor mode rated rotating speed]. When it is lower than the compressor mode minimum rotating speed, it is determined according to the compressor mode minimum rotating speed. When it is higher than the compressor mode rated rotating speed, it is determined according to the compressor mode rated rotating speed. The intermediate value is calculated according to the above formula 4. In the above formula 4:

[0191] The outer ring temperature: the value of the condenser inlet air temperature at the time when the exhaust fan is started;

[0192] A5: coefficient, = (rated speed of compressor mode (DX-fan rated speed) - minimum speed of compressor mode) / (outer ring temperature upper limit of compressor mode - outer ring temperature lower limit of compressor mode);

[0193] B5: constant, initial speed of fan corresponding to 0°C outer ring temperature, = minimum speed of compressor mode + A5 * outer ring temperature lower limit of compressor mode.

[0194] III. Speed prediction logic in mixed mode:

[0195] When the target refrigeration mode currently running by the space conditioning object includes a mixed mode, the mixed mode refers to a mode mixed between the compressor mode and the fluorine pump mode, and the target refrigeration system corresponding to the mixed mode includes a compressor refrigeration subsystem and a fluorine pump refrigeration subsystem. In the mixed mode, for the fan in the compressor refrigeration subsystem, the fan control strategy of the fan in the compressor refrigeration subsystem in the compressor mode can be followed, and for the fan in the fluorine pump refrigeration subsystem, the fan control strategy of the fan in the fluorine pump refrigeration subsystem in the fluorine pump mode (specifically, the fan control strategy of the fan in a single fluorine pump refrigeration subsystem) can be followed.

[0196] Specifically, the speed of the fan in the compressor refrigeration subsystem can be predicted according to the fan control strategy corresponding to the compressor mode based on the fan control parameters and working condition information corresponding to the compressor mode; the speed prediction of the fan in the compressor refrigeration subsystem can be specifically referred to the above description of the speed prediction in the compressor mode, and will not be repeated here. In addition, the speed of the fan in the fluorine pump refrigeration subsystem can be predicted according to the fan control strategy corresponding to the fluorine pump mode based on the fan control parameters and working condition information corresponding to the fluorine pump mode; the speed prediction of the fan in the fluorine pump refrigeration subsystem can be specifically referred to the above description of the speed prediction in the fluorine pump mode, and will not be repeated here.

[0197] For example, when the unit runs in the mixed mode, taking a dual-system unit as an example, which can include a refrigeration system A and a refrigeration system B, the refrigeration system A runs the fluorine pump refrigeration subsystem, and the refrigeration system B runs the compressor refrigeration subsystem, then the fans of the refrigeration system A and the refrigeration system B are predicted according to the speed prediction logic of the fluorine pump mode and the speed prediction logic of the compressor mode, respectively, and the refrigeration system A is predicted according to the speed prediction logic of a single fluorine pump refrigeration subsystem in the fluorine pump mode.

[0198] In summary, the speed prediction logic of the fan control strategy in the compressor mode, the fluorine pump mode and the mixed mode can be summarized as Figure 12 The flowchart shown: the target refrigeration mode currently running by the space conditioning object can be obtained, and the speed prediction flow of the fan control strategy corresponding to the target refrigeration mode is executed.

[0199] When the target refrigeration mode includes the compressor mode: ① the starting time of the exhaust fan in the compressor refrigeration subsystem can be determined according to the exhaust fan compressor operation start pressure and the exhaust fan compressor operation stop pressure; when the actual condensing pressure is less than the exhaust fan compressor operation start pressure, the exhaust fan does not start; when the actual condensing pressure is less than the exhaust fan compressor operation stop pressure (Pc∈(-∞, exhaust fan compressor operation stop pressure), the exhaust fan is turned off; when the actual condensing pressure is greater than or equal to the exhaust fan compressor operation start pressure (i.e. Pc∈[exhaust fan compressor operation start pressure, +∞)), the exhaust fan can be started according to the initial speed in the compressor mode (i.e. the second initial speed); the exhaust fan control parameters involved in the determination of the initial speed in the compressor mode can include: the rated speed of the compressor mode, the minimum speed of the compressor mode, the upper limit of the outer ring temperature of the compressor mode, and the lower limit of the outer ring temperature of the compressor mode. ② the target condensing pressure automatic adjustment phase is executed, which involves exhaust fan control parameters including: the initial value of the target condensing pressure, the lower boundary of the target condensing pressure, the upper boundary of the target condensing pressure, the limited minimum speed of the compressor mode, and the limited speed threshold of the compressor mode. ③ the condensing pressure mapping phase is executed, and the speed of the exhaust fan in the compressor refrigeration subsystem at the k-th sampling time in the compressor mode is output; the exhaust fan control parameters involved in this phase can include: the minimum speed of the compressor mode, the rated speed of the compressor mode, the control proportional coefficient of the compressor mode (K p ), the control integral time of the compressor mode (T i ), the control differential coefficient of the compressor mode (T d ), and the control adjustment period of the compressor mode (T).

[0200] When the target refrigeration mode includes the fluorine pump mode: ① the exhaust fan can be started according to the initial speed in the fluorine pump mode (i.e. the first initial speed); the exhaust fan control parameters involved in the determination of the initial speed in the fluorine pump mode can include: the rated speed of the fluorine pump mode, the minimum speed of the fluorine pump mode, the upper limit of the outer ring temperature of the fluorine pump mode, and the lower limit of the outer ring temperature of the fluorine pump mode. ② the speed threshold limiting phase is executed, which involves exhaust fan control parameters including: the lower limit of the indoor and outdoor temperature difference, the upper limit of the indoor and outdoor temperature difference, the rated speed of the fluorine pump mode, and the lower boundary of the speed threshold limitation. ③ the number of open fluorine pump refrigeration subsystems can be obtained. ④ when the number of open fluorine pump refrigeration subsystems is single, the refrigeration demand information calculation of the single system and the refrigeration demand mapping of the single system can be executed, and the speed of the exhaust fan in the single fluorine pump refrigeration subsystem at the k-th sampling time in the fluorine pump mode is output; the exhaust fan control parameters involved in the refrigeration demand information calculation of the single system can include single system refrigeration demand control parameters, which can include single system refrigeration demand proportional coefficient (single system K p), single system cooling demand integral coefficient (single system T i ), single system cooling demand differential coefficient (single system T d ), and a single-system refrigeration demand calculation cycle (single-system T); the exhaust fan control parameters involved in the single-system refrigeration demand mapping calculation may include the minimum speed of the fluorine pump mode, the single-system demand mapping control parameters, and the single-system demand mapping control parameters may include the single-system demand mapping lower limit and the single-system demand mapping upper limit. When there are multiple fluorine pump refrigeration subsystems turned on, the refrigeration demand information calculation of multiple systems and the refrigeration demand mapping of multiple systems can be performed, and the speed of the exhaust fans in the multiple fluorine pump refrigeration subsystems at the kth sampling moment under the fluorine pump mode is output; the exhaust fan control parameters involved in the multi-system refrigeration demand information calculation may include the multi-system refrigeration demand control parameters, and the multi-system refrigeration demand control parameters may include the multi-system refrigeration demand proportional coefficient (multi-system K p ), multi-system cooling demand integral coefficient (multi-system T i ), multi-system cooling demand differential coefficient (multi-system T d ), and a multi-system cooling demand calculation cycle (multi-system T); the exhaust fan control parameters involved in the multi-system cooling demand mapping calculation may include a multi-system demand mapping control parameter, and the multi-system demand mapping control parameter may include a multi-system demand mapping lower limit and a multi-system demand mapping upper limit.

[0201] When the target cooling mode includes the mixed mode, refer to the speed prediction logic of the exhaust fan control strategy in the compressor mode and the speed prediction logic of the exhaust fan control strategy in the fluorine pump mode.

[0202] S505: Based on the predicted rotation speed, the exhaust fan in the target refrigeration system is controlled to operate.

[0203] In the embodiment of the present application, the execution process of step S505 is the same as the above Figure 4 The execution process of step S403 in the embodiment shown is the same, and the details can be found in the above Figure 4 The description of step S403 in the illustrated embodiment will not be repeated here.

[0204] In the embodiments of the present application, the rotating speed of the exhaust fan can be adjusted, and different exhaust fan control strategies can be used to predict the rotating speed of the exhaust fan in different refrigeration modes, so that the rotating speed of the exhaust fan is adapted to the refrigeration mode in which the space conditioning object operates, thereby improving the operating energy efficiency of the space conditioning object. According to the different operating characteristics of the compressor mode and the fluorine pump mode, two different exhaust fan control strategies are used for the compressor mode and the fluorine pump mode respectively. In particular, for the fluorine pump mode, the rotating speed of the exhaust fan plays a crucial role in refrigeration output, so the fluorine pump mode is controlled according to the refrigeration demand to achieve accurate control of the refrigerating capacity of the unit in the fluorine pump mode. In addition, in the compressor mode or the fluorine pump mode, the initial rotating speed dynamic adjustment method of the exhaust fan is used to effectively achieve high rotating speed of the exhaust fan when the outdoor temperature is high, thereby achieving rapid refrigeration; when the outdoor temperature is low, the exhaust fan operates at a low rotating speed, thereby improving the energy efficiency of the unit and achieving rapid and stable control of the refrigeration system of the unit, reducing temperature fluctuation time. Based on the exhaust fan control strategy of the embodiments of the present application, the exhaust fan of the unit can always operate in a reasonable target value range, thereby effectively solving the high energy consumption problem caused by the fixed rotating speed of the exhaust fan of the general unit, achieving the decrease of the annual average PUE (Power Usage Effectiveness, a index for evaluating the energy efficiency of data center) of the machine room, saving electricity bills, and reducing the operating cost of the machine room; the dynamic adjustment value (for example, the initial rotating speed) is used as a limiting condition for the operation of the exhaust fan, and the outdoor environmental factors and the control conditions in the unit are fully considered, thereby achieving intelligent control.

[0205] The control method of the space conditioning object provided in the embodiments of the present application can also be combined with cloud technology. The embodiments of the present application can perform exhaust fan rotating speed prediction of the exhaust fan control strategy corresponding to different refrigeration modes based on cloud computing. The powerful computing power of cloud computing can improve the rotating speed prediction efficiency.

[0206] The cloud technology (Cloud Technology) is a general term for network technology, information technology, integration technology, management platform technology, application technology, etc. based on cloud computing business model application, which can form a resource pool, and can be used on demand, flexibly and conveniently. Cloud computing technology will become an important support. The background service of the technical network system needs a large amount of computing and storage resources, such as video websites, picture websites and more portals. With the high development and application of the Internet industry, every item may have its own identification mark in the future, and needs to be transmitted to the background system for logical processing. Different levels of data will be processed separately, and various industry data need strong system support, which can only be realized through cloud computing.

[0207] Cloud Computing is a computing mode which distributes computing tasks on a large number of computing resources, so that various application systems can obtain computing power, storage space and information services according to needs. The network providing resources is called "cloud". The resources in the "cloud" are infinitely expandable to users and can be obtained at any time, used on demand, expanded at any time and paid according to use. Cloud computing refers to the delivery and use mode of IT (Internet Technology) infrastructure, which refers to obtaining the required resources in a scalable manner on demand through the network; broad sense cloud computing refers to the delivery and use mode of services, which refers to obtaining the required services in a scalable manner on demand through the network.

[0208] Please refer to Figure 13 , Figure 13 is a structural schematic diagram of a space conditioning object control device provided by an embodiment of the present application. The space conditioning object control device can be arranged in a computer device provided by an embodiment of the present application. The computer device can be a control device in a space conditioning object control system. Figure 13 The space conditioning object control device shown can be a computer program running in the computer device. The space conditioning object control device can be used to execute part or all of the steps in the method embodiment. Please refer to Figure 13 , the space conditioning object control device can include the following units:

[0209] The acquisition unit 1301 is configured to acquire a target refrigeration mode currently running by the space conditioning object. The space conditioning object performs refrigeration on the space where the space conditioning object is located through a target refrigeration system corresponding to the target refrigeration mode. The space conditioning object has multiple refrigeration modes, and each refrigeration mode corresponds to a respective exhaust fan control strategy.

[0210] The processing unit 1302 is configured to predict the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode.

[0211] The processing unit 1302 is further configured to control the exhaust fan in the target refrigeration system to operate based on the predicted speed.

[0212] In an implementation manner, when the processing unit 1302 predicts the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode, the processing unit 1302 is specifically configured to execute the following steps:

[0213] Acquire the exhaust fan control parameters configured for the target refrigeration mode;

[0214] Acquire the working condition information of the target refrigeration system, the working condition information of the target refrigeration system being used to reflect the working condition of the target refrigeration system.

[0215] The processing unit 1302 is configured to predict the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameter and the working condition information.

[0216] In an implementation manner, the target refrigeration mode includes a fluorine pump mode, and the target refrigeration system corresponding to the fluorine pump mode includes a fluorine pump refrigeration subsystem; the working condition information includes an indoor-outdoor temperature difference at the kth sampling moment and refrigeration demand information at the kth sampling moment.

[0217] The processing unit 1302 is configured to predict the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameter and the working condition information.

[0218] After starting the exhaust fan in the fluorine pump refrigeration subsystem, the processing unit 1302 is configured to limit the speed threshold of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling moment based on the exhaust fan control parameter and the indoor-outdoor temperature difference at the kth sampling moment, to obtain a limited speed threshold at the kth sampling moment.

[0219] The processing unit 1302 is configured to determine the speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling moment according to the exhaust fan control parameter and the refrigeration demand information at the kth sampling moment within the limited speed threshold at the kth sampling moment.

[0220] In an implementation manner, the exhaust fan control parameter includes a speed range of the fluorine pump mode and an indoor-outdoor temperature difference range; and the processing unit 1302 is configured to limit the speed threshold of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling moment based on the exhaust fan control parameter and the indoor-outdoor temperature difference at the kth sampling moment, to obtain a limited speed threshold at the kth sampling moment.

[0221] The processing unit 1302 is configured to establish a first mapping relationship between the indoor-outdoor temperature difference and the limited speed threshold based on the speed range of the fluorine pump mode and the indoor-outdoor temperature difference range.

[0222] The processing unit 1302 is configured to map the indoor-outdoor temperature difference at the kth sampling moment based on the first mapping relationship, to obtain the limited speed threshold at the kth sampling moment.

[0223] In an implementation manner, the exhaust fan control parameter further includes a refrigeration demand control parameter, a demand mapping control parameter, and a minimum speed of the fluorine pump mode.

[0224] The processing unit 1302 is configured to determine the speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling moment according to the exhaust fan control parameter and the refrigeration demand information at the kth sampling moment within the limited speed threshold at the kth sampling moment.

[0225] The second mapping relationship between the refrigeration demand information and the rotation speed of the exhaust fan is established based on a minimum rotation speed of the fluorine pump mode, a limited rotation speed threshold at the kth sampling moment, and a demand mapping control parameter;

[0226] The rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling moment is obtained by mapping the refrigeration demand information at the kth sampling moment based on the second mapping relationship.

[0227] The refrigeration demand information at the kth sampling moment is obtained by performing control calculation on the environmental temperature of the fluorine pump refrigeration subsystem at the kth sampling moment based on the refrigeration demand control parameter.

[0228] In an implementation manner, the number of the started fluorine pump refrigeration subsystems is single or multiple.

[0229] When the number of the started fluorine pump refrigeration subsystems is single, the refrigeration demand control parameter comprises a single-system refrigeration demand control parameter, and the demand mapping control parameter comprises a single-system demand mapping control parameter.

[0230] When the number of the started fluorine pump refrigeration subsystems is multiple, the refrigeration demand control parameter comprises a multiple-system refrigeration demand control parameter, and the demand mapping control parameter comprises a multiple-system demand mapping control parameter.

[0231] In an implementation manner, the processing unit 1302 performs control calculation on the environmental temperature of the fluorine pump refrigeration subsystem based on the refrigeration demand control parameter, and the process comprises:

[0232] determining a first temperature difference between the environmental temperature at the kth sampling moment and a set environmental temperature, and a second temperature difference between the environmental temperature at the (k-1)th sampling moment and the set environmental temperature;

[0233] performing control calculation on the first temperature difference and the second temperature difference based on the refrigeration demand control parameter to obtain the refrigeration demand information at the kth sampling moment.

[0234] In an implementation manner, the processing unit 1302 is further configured to perform the following steps:

[0235] predicting an initial rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem based on the exhaust fan control parameter and the working condition information to obtain a first initial rotation speed;

[0236] starting the exhaust fan in the fluorine pump refrigeration subsystem at the first initial rotation speed.

[0237] In an implementation manner, the exhaust fan control parameter comprises: an outer ring temperature range of the fluorine pump mode and a rotating speed range of the fluorine pump mode; the working condition information further comprises a current outer ring temperature of the fluorine pump refrigeration subsystem; the processing unit 1302 is configured to predict an initial rotating speed of the exhaust fan in the fluorine pump refrigeration subsystem based on the exhaust fan control parameter and the working condition information, and obtain a first initial rotating speed, and specifically configured to perform the following steps:

[0238] According to the outer ring temperature range of the fluorine pump mode and the rotating speed range of the fluorine pump mode, a third mapping relationship between the outer ring temperature and the initial rotating speed is established;

[0239] According to the third mapping relationship, the current outer ring temperature is mapped to obtain the first initial rotating speed.

[0240] In an implementation manner, the target refrigeration mode comprises a compressor mode, the target refrigeration system corresponding to the compressor mode comprises a compressor refrigeration subsystem; the working condition information comprises an actual condensing pressure; when the processing unit 1302 is configured to predict the rotating speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameter and the working condition information, specifically configured to perform the following steps:

[0241] After starting the exhaust fan in the compressor refrigeration subsystem, the target condensing pressure of the compressor refrigeration subsystem is predicted based on the exhaust fan control parameter;

[0242] Based on the exhaust fan control parameter and the difference between the actual condensing pressure and the target condensing pressure predicted, the rotating speed of the exhaust fan in the compressor refrigeration subsystem is determined.

[0243] In an implementation manner, the exhaust fan control parameter comprises: a target condensing pressure initial value, a target condensing pressure range, and a limited rotating speed range of the compressor mode; when the processing unit 1302 is configured to predict the target condensing pressure of the compressor refrigeration subsystem based on the exhaust fan control parameter, specifically configured to perform the following steps:

[0244] The target condensing pressure initial value is determined as the target condensing pressure;

[0245] In the target condensing pressure range, the target condensing pressure is adjusted according to the relationship between the exhaust fan rotating speed in the set change period and the limited rotating speed range of the compressor mode.

[0246] In an implementation manner, the exhaust fan control parameter further comprises a rotating speed control parameter; the working condition information further comprises the rotating speed of the exhaust fan in the compressor refrigeration subsystem at the k-1 sampling moment; the target condensing pressure comprises the target condensing pressure at the k sampling moment and the target condensing pressure at the k-1 sampling moment; the actual condensing pressure comprises the actual condensing pressure at the k sampling moment and the actual condensing pressure at the k-1 sampling moment;

[0247] The processing unit 1302 is configured to determine the rotating speed of the exhaust fan in the compressor refrigeration subsystem based on the exhaust fan control parameter and the difference between the actual condensing pressure and the predicted target condensing pressure, and specifically configured to perform the following steps:

[0248] determine a first condensing pressure difference between the actual condensing pressure at the kth sampling time and the target condensing pressure at the kth sampling time, and a second condensing pressure difference between the actual condensing pressure at the (k-1)th sampling time and the target condensing pressure at the (k-1)th sampling time;

[0249] perform a control calculation on the first condensing pressure difference and the second condensing pressure difference based on the rotating speed control parameter to obtain a rotating speed adjustment value at the kth sampling time;

[0250] adjust the rotating speed at the (k-1)th sampling time according to the rotating speed adjustment value at the kth sampling time to obtain the rotating speed of the exhaust fan in the compressor refrigeration subsystem at the kth sampling time.

[0251] In an implementation manner, the processing unit 1302 is further configured to perform the following steps:

[0252] predict an initial rotating speed of the exhaust fan in the compressor refrigeration subsystem based on the exhaust fan control parameter and the working condition information to obtain a second initial rotating speed;

[0253] start the exhaust fan in the compressor refrigeration subsystem according to the second initial rotating speed.

[0254] In an implementation manner, the exhaust fan control parameter includes an exhaust fan compressor operation start pressure; and the processing unit 1302 is further configured to perform the following steps:

[0255] compare the actual condensing pressure with the exhaust fan compressor operation start pressure after starting the exhaust fan in the compressor refrigeration subsystem;

[0256] if the actual condensing pressure is greater than or equal to the exhaust fan compressor start pressure, trigger the execution of the prediction of the target condensing pressure of the compressor refrigeration subsystem based on the exhaust fan control parameter.

[0257] In an implementation manner, the target refrigeration mode includes a mixed mode, the mixed mode refers to a mode mixed between the compressor mode and the fluorine pump mode, and the target refrigeration system corresponding to the mixed mode includes the compressor refrigeration subsystem and the fluorine pump refrigeration subsystem; and the processing unit 1302 is configured to predict the rotating speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameter and the working condition information, and specifically configured to perform the following steps:

[0258] Based on the exhaust fan control parameters and working condition information corresponding to the compressor mode, the speed of the exhaust fan in the compressor refrigeration subsystem is predicted according to the exhaust fan control strategy corresponding to the compressor mode.

[0259] Based on the exhaust fan control parameters and working condition information corresponding to the fluorine pump mode, the speed of the exhaust fan in the fluorine pump refrigeration subsystem is predicted according to the exhaust fan control strategy corresponding to the fluorine pump mode.

[0260] According to one embodiment of the present application, Figure 13 The units in the control device of the space conditioning object shown can be combined into one or several other units respectively or all to constitute, or some of the units can also be further split into a plurality of units with smaller functions to constitute, which can achieve the same operation without affecting the implementation of the technical effects of the embodiments of the present application. The above units are logically divided, and in actual application, the functions of one unit can also be implemented by multiple units, or the functions of multiple units are implemented by one unit. In other embodiments of the present application, the control device of the space conditioning object can also include other units, which can also be assisted by other units in actual application, and can be implemented by multiple units.

[0261] According to another embodiment of the present application, the control device of the space conditioning object shown in Figure 13 , and the space conditioning object control method of the embodiments of the present application can be constructed and implemented by running a computer program capable of executing the steps involved in the method embodiments on a general computing device such as a computer including processing elements and storage elements such as central processing units (CPUs), random access memory (RAM), read-only memory (ROM), etc. The computer program can be recorded on a computer readable storage medium, loaded into the above computing device through the computer readable storage medium, and run therein.

[0262] In the embodiments of the present application, in the space conditioning object with multiple refrigeration modes, each refrigeration mode corresponds to a respective exhaust fan control strategy, and the speed of the exhaust fan in the target refrigeration system can be predicted according to the exhaust fan control strategy corresponding to the target refrigeration mode. Therefore, the speed of the exhaust fan in the target refrigeration system can be controlled based on the predicted speed. It can be seen that the embodiments of the present application can adjust the speed of the exhaust fan, and different refrigeration modes can use different exhaust fan control strategies to adjust the speed of the exhaust fan, so that the speed of the exhaust fan is adapted to the refrigeration mode of the space conditioning object, which can improve the operation efficiency of the space conditioning object.

[0263] Based on the above method and device embodiments, the embodiments of the present application provide a computer device. Please refer to Figure 14 ,Figure 14 Fig. 1 is a structural schematic diagram of a computer device provided by an embodiment of the present application. Figure 14 The computer device shown at least includes a processor 1401, an input interface 1402, an output interface 1403, and a computer readable storage medium 1404. The processor 1401, the input interface 1402, the output interface 1403, and the computer readable storage medium 1404 can be connected through a bus or other means.

[0264] The computer readable storage medium 1404 can be stored in the memory of the computer device, and is used to store a computer program including computer instructions. The processor 1401 is used to execute the computer program stored in the computer readable storage medium 1404. The processor 1401 (or CPU (Central Processing Unit, Central Processor)) is the computing core and control core of the computer device, which is suitable for implementing the computer program, and specifically suitable for loading and executing the computer program to realize the corresponding method process or corresponding function.

[0265] The embodiment of the present application further provides a computer readable storage medium (Memory). The computer readable storage medium is a memory device in the computer device, and is used to store programs and data. It can be understood that the computer readable storage medium herein can include the built-in storage medium in the computer device, and of course can include the expansion storage medium supported by the computer device. The computer readable storage medium provides a storage space, and the storage space stores the operating system of the computer device. Moreover, the computer program suitable for being loaded and executed by the processor is also stored in the storage space. It should be noted that the computer readable storage medium herein can be a high-speed RAM memory, or a non-volatile memory (Non-Volatile Memory), for example, at least one disk memory; optionally, it can also be at least one computer readable storage medium located away from the aforementioned processor.

[0266] The computer device can be a control device in a control system of a space conditioning object. In the specific implementation, the computer program stored in the computer readable storage medium 1404 can be loaded and executed by the processor 1401 to realize the corresponding steps of the above-mentioned method embodiment. In the specific implementation, the computer program in the computer readable storage medium 1404 is loaded and executed by the processor 1401 as follows:

[0267] obtaining a target refrigeration mode currently running by the space conditioning object; the space conditioning object performs refrigeration on the space where the space conditioning object is located through a target refrigeration system corresponding to the target refrigeration mode; the space conditioning object has multiple refrigeration modes, and each refrigeration mode corresponds to a respective exhaust fan control strategy;

[0268] predict the rotating speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode;

[0269] control the exhaust fan in the target refrigeration system to operate based on the predicted rotating speed.

[0270] In an implementation manner, when the computer program in the computer readable storage medium 1404 is loaded and executed by the processor 1401 to predict the rotating speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode, the computer program is specifically used to perform the following steps:

[0271] obtain the exhaust fan control parameter configured for the target refrigeration mode;

[0272] obtain the working condition information of the target refrigeration system, the working condition information of the target refrigeration system being used to reflect the working condition of the target refrigeration system;

[0273] predict the rotating speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameter and the working condition information.

[0274] In an implementation manner, the target refrigeration mode includes a fluorine pump mode, the target refrigeration system corresponding to the fluorine pump mode includes a fluorine pump refrigeration subsystem; the working condition information includes an indoor-outdoor temperature difference at a kth sampling time and refrigeration demand information at the kth sampling time;

[0275] When the computer program in the computer readable storage medium 1404 is loaded and executed by the processor 1401 to predict the rotating speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameter and the working condition information, the computer program is specifically used to perform the following steps:

[0276] after starting the exhaust fan in the fluorine pump refrigeration subsystem, limit the rotating speed threshold of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time based on the exhaust fan control parameter and the indoor-outdoor temperature difference at the kth sampling time, to obtain a limited rotating speed threshold at the kth sampling time;

[0277] determine the rotating speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time according to the exhaust fan control parameter and the refrigeration demand information at the kth sampling time within the limited rotating speed threshold at the kth sampling time.

[0278] In an implementation, the exhaust fan control parameters include a rotation speed range of the fluorine pump mode and an indoor-outdoor temperature difference range; the computer program in the computer readable storage medium 1404 is loaded and executed by the processor 1401 to limit a rotation speed threshold of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time based on the exhaust fan control parameters and the indoor-outdoor temperature difference at the kth sampling time, and obtain the limited rotation speed threshold at the kth sampling time. Specifically, the following steps are performed:

[0279] Based on the rotation speed range of the fluorine pump mode and the indoor-outdoor temperature difference range, a first mapping relationship between the indoor-outdoor temperature difference and the limited rotation speed threshold is established;

[0280] Based on the first mapping relationship, the indoor-outdoor temperature difference at the kth sampling time is mapped to obtain the limited rotation speed threshold at the kth sampling time.

[0281] In an implementation, the exhaust fan control parameters further include a refrigeration demand control parameter, a demand mapping control parameter, and a minimum rotation speed of the fluorine pump mode;

[0282] The computer program in the computer readable storage medium 1404 is loaded and executed by the processor 1401 to determine the rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time within the limited rotation speed threshold at the kth sampling time, according to the exhaust fan control parameters and the refrigeration demand information at the kth sampling time. Specifically, the following steps are performed:

[0283] Based on the minimum rotation speed of the fluorine pump mode, the limited rotation speed threshold at the kth sampling time, and the demand mapping control parameter, a second mapping relationship between the refrigeration demand information and the rotation speed of the exhaust fan is established;

[0284] Based on the second mapping relationship, the refrigeration demand information at the kth sampling time is mapped to obtain the rotation speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time;

[0285] The refrigeration demand information at the kth sampling time is obtained by controlling and calculating the ambient temperature of the fluorine pump refrigeration subsystem at the kth sampling time based on the refrigeration demand control parameter.

[0286] In an implementation, the number of fluorine pump refrigeration subsystems that have been started is single or multiple;

[0287] When the number of fluorine pump refrigeration subsystems that have been started is single, the refrigeration demand control parameter includes a single-system refrigeration demand control parameter, and the demand mapping control parameter includes a single-system demand mapping control parameter;

[0288] When the number of fluorine pump refrigeration subsystems that have been started is multiple, the refrigeration demand control parameter includes a multiple-system refrigeration demand control parameter, and the demand mapping control parameter includes a multiple-system demand mapping control parameter.

[0289] In an implementation manner, the computer program in the computer readable storage medium 1404 is loaded by the processor 1401 and executed to perform a process of controlling calculation of the ambient temperature of the fluorine pump refrigeration subsystem based on the refrigeration demand control parameter, comprising:

[0290] determining a first temperature difference between the ambient temperature at the kth sampling moment and the set ambient temperature, and a second temperature difference between the ambient temperature at the k-1th sampling moment and the set ambient temperature;

[0291] controlling calculation of the first temperature difference and the second temperature difference based on the refrigeration demand control parameter to obtain refrigeration demand information at the kth sampling moment.

[0292] In an implementation manner, the computer program in the computer readable storage medium 1404 is loaded by the processor 1401 and further used to perform the following steps:

[0293] predicting an initial rotating speed of the exhaust fan in the fluorine pump refrigeration subsystem based on the exhaust fan control parameter and the working condition information to obtain a first initial rotating speed;

[0294] starting the exhaust fan in the fluorine pump refrigeration subsystem at the first initial rotating speed.

[0295] In an implementation manner, the exhaust fan control parameter comprises an outer ring temperature range of the fluorine pump mode and a rotating speed range of the fluorine pump mode, and the working condition information further comprises a current outer ring temperature of the fluorine pump refrigeration subsystem; when the computer program in the computer readable storage medium 1404 is loaded by the processor 1401 and executed to predict the initial rotating speed of the exhaust fan in the fluorine pump refrigeration subsystem based on the exhaust fan control parameter and the working condition information to obtain the first initial rotating speed, the specific steps are as follows:

[0296] establishing a third mapping relationship between the outer ring temperature and the initial rotating speed according to the outer ring temperature range of the fluorine pump mode and the rotating speed range of the fluorine pump mode;

[0297] mapping the current outer ring temperature according to the third mapping relationship to obtain the first initial rotating speed.

[0298] In an implementation manner, the target refrigeration mode comprises a compressor mode, the target refrigeration system corresponding to the compressor mode comprises a compressor refrigeration subsystem, and the working condition information comprises an actual condensing pressure; when the computer program in the computer readable storage medium 1404 is loaded by the processor 1401 and executed to predict the rotating speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameter and the working condition information, the specific steps are as follows:

[0299] After starting the exhaust fan in the press refrigeration subsystem, based on the exhaust fan control parameter, the target condensing pressure of the press refrigeration subsystem is predicted;

[0300] Based on the exhaust fan control parameter and the difference between the actual condensing pressure and the predicted target condensing pressure, the rotational speed of the exhaust fan in the press refrigeration subsystem is determined.

[0301] In an implementation manner, the exhaust fan control parameter includes a target condensing pressure initial value, a target condensing pressure range, and a compressor mode defined rotational speed range; when the computer program in the computer readable storage medium 1404 is loaded and executed by the processor 1401 to predict the target condensing pressure of the press refrigeration subsystem based on the exhaust fan control parameter, the computer program is specifically used to perform the following steps:

[0302] The target condensing pressure initial value is determined as the target condensing pressure;

[0303] In the target condensing pressure range, the target condensing pressure is adjusted according to the relationship between the exhaust fan rotational speed and the compressor mode defined rotational speed range in a set change period.

[0304] In an implementation manner, the exhaust fan control parameter further includes a rotational speed control parameter; the working condition information further includes the rotational speed of the exhaust fan in the press refrigeration subsystem at the k-1 sampling moment; the target condensing pressure includes the target condensing pressure at the k sampling moment and the target condensing pressure at the k-1 sampling moment; and the actual condensing pressure includes the actual condensing pressure at the k sampling moment and the actual condensing pressure at the k-1 sampling moment;

[0305] When the computer program in the computer readable storage medium 1404 is loaded and executed by the processor 1401 to determine the rotational speed of the exhaust fan in the press refrigeration subsystem based on the exhaust fan control parameter and the difference between the actual condensing pressure and the predicted target condensing pressure, the computer program is specifically used to perform the following steps:

[0306] The first condensing pressure difference between the actual condensing pressure at the k sampling moment and the target condensing pressure at the k sampling moment, and the second condensing pressure difference between the actual condensing pressure at the k-1 sampling moment and the target condensing pressure at the k-1 sampling moment are determined;

[0307] Based on the rotational speed control parameter, the first condensing pressure difference and the second condensing pressure difference are controlled and calculated to obtain a rotational speed adjustment value at the k sampling moment;

[0308] According to the rotational speed adjustment value at the k sampling moment, the rotational speed at the k-1 sampling moment is adjusted to obtain the rotational speed of the exhaust fan in the press refrigeration subsystem at the k sampling moment.

[0309] In an implementation, the computer program in the computer readable storage medium 1404 is loaded by the processor 1401 and further used to perform the following steps:

[0310] Based on the exhaust fan control parameter and the working condition information, an initial rotating speed of the exhaust fan in the compressor refrigeration subsystem is predicted to obtain a second initial rotating speed;

[0311] The exhaust fan in the compressor refrigeration subsystem is started according to the second initial rotating speed.

[0312] In an implementation, the exhaust fan control parameter includes an exhaust fan compressor operation start pressure; the computer program in the computer readable storage medium 1404 is loaded by the processor 1401 and further used to perform the following steps:

[0313] After starting the exhaust fan in the compressor refrigeration subsystem, the actual condensing pressure is compared with the exhaust fan compressor operation start pressure;

[0314] If the actual condensing pressure is greater than or equal to the exhaust fan compressor start pressure, it is triggered to perform the prediction of the target condensing pressure of the compressor refrigeration subsystem based on the exhaust fan control parameter.

[0315] In an implementation, the target refrigeration mode includes a mixed mode, the mixed mode refers to a mixed mode between the compressor mode and the fluorine pump mode, and the target refrigeration system corresponding to the mixed mode includes the compressor refrigeration subsystem and the fluorine pump refrigeration subsystem; when the computer program in the computer readable storage medium 1404 is loaded by the processor 1401 and performs the prediction of the rotating speed of the exhaust fan in the target refrigeration system based on the exhaust fan control parameter and the working condition information according to the exhaust fan control strategy corresponding to the target refrigeration mode, it is specifically used to perform the following steps:

[0316] Based on the exhaust fan control parameter and the working condition information corresponding to the compressor mode, the rotating speed of the exhaust fan in the compressor refrigeration subsystem is predicted according to the exhaust fan control strategy corresponding to the compressor mode;

[0317] Based on the exhaust fan control parameter and the working condition information corresponding to the fluorine pump mode, the rotating speed of the exhaust fan in the fluorine pump refrigeration subsystem is predicted according to the exhaust fan control strategy corresponding to the fluorine pump mode.

[0318] In the embodiments of the present application, in the case that the space conditioning object has multiple refrigeration modes, each refrigeration mode corresponds to a respective exhaust fan control strategy, the speed of the exhaust fan in the target refrigeration system can be predicted according to the exhaust fan control strategy corresponding to the target refrigeration mode, so that the exhaust fan in the target refrigeration system can be controlled to operate based on the predicted speed. It can be seen that the embodiments of the present application can adjust the speed of the exhaust fan, and different refrigeration modes can use different exhaust fan control strategies to adjust the speed of the exhaust fan, so that the speed of the exhaust fan is adapted to the refrigeration mode in which the space conditioning object operates, which can improve the operation energy efficiency of the space conditioning object.

[0319] The embodiments of the present application also provide a computer program product, which comprises a computer program stored in a computer readable storage medium. A processor of a computer device reads the computer program from the computer readable storage medium, and the processor executes the computer program, so that the computer device executes the control method of the space conditioning object described above.

[0320] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in combination with the embodiments disclosed in the present application can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0321] In the embodiments of the present application, the term "module" or "unit" refers to a computer program or a part of a computer program with a predetermined function, and works with other related parts to achieve a predetermined target, and can be realized in whole or in part by using software, hardware (such as processing circuit or memory) or combination thereof. Similarly, one processor (or multiple processors or memory) can be used to realize one or more modules or units. In addition, each module or unit can be a part of an integral module or unit that includes the functions of the module or unit.

[0322] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in or transmitted by a computer readable storage medium. The computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (for example, floppy disk, hard disk, magnetic tape), optical media (for example, DVD), or semiconductor media (for example, solid state disk (SSD)) and the like.

[0323] The above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control method of a space-conditioning object, characterized by, The method comprises: acquiring a target refrigeration mode currently running by a space conditioning object; the space conditioning object performs refrigeration on a space where the space conditioning object is located by a target refrigeration system corresponding to the target refrigeration mode; the space conditioning object has multiple refrigeration modes, and each refrigeration mode corresponds to a respective exhaust fan control strategy; predicting a speed of an exhaust fan in the target refrigeration system according to an exhaust fan control strategy corresponding to the target refrigeration mode; controlling the exhaust fan in the target refrigeration system to operate based on the predicted speed.

2. The method of claim 1, wherein, The method of predicting the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode comprises: acquiring exhaust fan control parameters configured for the target refrigeration mode; acquiring working condition information of the target refrigeration system, the working condition information being used to reflect a working condition of the target refrigeration system; predicting the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameters and the working condition information.

3. The method of claim 2, wherein, The target refrigeration mode comprises a fluorine pump mode, the target refrigeration system corresponding to the fluorine pump mode comprises a fluorine pump refrigeration subsystem, and the working condition information comprises an indoor-outdoor temperature difference at a kth sampling time and refrigeration demand information at the kth sampling time. The method of predicting the speed of the exhaust fan in the target refrigeration system according to the exhaust fan control strategy corresponding to the target refrigeration mode based on the exhaust fan control parameters and the working condition information comprises: after starting the exhaust fan in the fluorine pump refrigeration subsystem, limiting a speed threshold of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time based on the exhaust fan control parameters and the indoor-outdoor temperature difference at the kth sampling time to obtain a limited speed threshold at the kth sampling time; determining the speed of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time according to the exhaust fan control parameters and the refrigeration demand information at the kth sampling time within the limited speed threshold at the kth sampling time.

4. The method of claim 3, wherein, The exhaust fan control parameters comprise a speed range of the fluorine pump mode and an indoor-outdoor temperature difference range; and the method of limiting the speed threshold of the exhaust fan in the fluorine pump refrigeration subsystem at the kth sampling time based on the exhaust fan control parameters and the indoor-outdoor temperature difference at the kth sampling time to obtain the limited speed threshold at the kth sampling time comprises: establishing a first mapping relationship between the indoor-outdoor temperature difference and the limited speed threshold based on the speed range of the fluorine pump mode and the indoor-outdoor temperature difference range; mapping the indoor-outdoor temperature difference at the kth sampling time based on the first mapping relationship to obtain the limited speed threshold at the kth sampling time.

5. The method of claim 4, wherein, The exhaust fan control parameters further comprise refrigeration demand control parameters, demand mapping control parameters, and a minimum speed of the fluorine pump mode. The method further comprises: The method further comprises: The method further comprises: The method further comprises:

6. The method of claim 5, wherein, The method further comprises: The method further comprises: The method further comprises:

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8. The method according to any one of claims 3 to 7, wherein, The method further comprises: The method further comprises: The method further comprises:

9. 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The method of claim 2, wherein, The target refrigeration mode includes a compressor mode, and the target refrigeration system corresponding to the compressor mode includes a compressor refrigeration subsystem; the working condition information includes an actual condensing pressure; and the predicting, based on the exhaust fan control parameter and the working condition information, of a rotating speed of an exhaust fan in the target refrigeration system according to an exhaust fan control strategy corresponding to the target refrigeration mode includes: After starting the exhaust fan in the compressor refrigeration subsystem, predicting a target condensing pressure of the compressor refrigeration subsystem based on the exhaust fan control parameter; Based on the exhaust fan control parameter and a difference between the actual condensing pressure and the predicted target condensing pressure, determining the rotating speed of the exhaust fan in the compressor refrigeration subsystem.

11. The method of claim 10, wherein, The exhaust fan control parameter includes a target condensing pressure initial value, a target condensing pressure range, and a limited rotating speed range of the compressor mode; and the predicting, based on the exhaust fan control parameter, of the target condensing pressure of the compressor refrigeration subsystem includes: Determining the target condensing pressure initial value as the target condensing pressure; Within the target condensing pressure range, adjusting the target condensing pressure according to a relationship between the exhaust fan rotating speed in a set change period and the limited rotating speed range of the compressor mode.

12. The method of claim 11, wherein, The exhaust fan control parameter further includes a rotating speed control parameter; the working condition information further includes a rotating speed of the exhaust fan in the compressor refrigeration subsystem at a k-1 sampling moment; the target condensing pressure includes a target condensing pressure at a k sampling moment and a target condensing pressure at a k-1 sampling moment; and the actual condensing pressure includes an actual condensing pressure at a k sampling moment and an actual condensing pressure at a k-1 sampling moment; The determining, based on the exhaust fan control parameter and a difference between the actual condensing pressure and the predicted target condensing pressure, of the rotating speed of the exhaust fan in the compressor refrigeration subsystem includes: Determining a first condensing pressure difference between the actual condensing pressure at the k sampling moment and the target condensing pressure at the k sampling moment, and a second condensing pressure difference between the actual condensing pressure at the k-1 sampling moment and the target condensing pressure at the k-1 sampling moment; Based on the rotating speed control parameter, performing control calculation on the first condensing pressure difference and the second condensing pressure difference to obtain a rotating speed adjustment value at the k sampling moment; According to the rotating speed adjustment value at the k sampling moment, adjusting the rotating speed at the k-1 sampling moment to obtain the rotating speed of the exhaust fan in the compressor refrigeration subsystem at the k sampling moment.

13. The method according to any one of claims 10 to 12, wherein, The method further includes: Based on the exhaust fan control parameter and the working condition information, predicting an initial rotating speed of the exhaust fan in the compressor refrigeration subsystem to obtain a second initial rotating speed; Starting the exhaust fan in the compressor refrigeration subsystem according to the second initial rotating speed.

14. The method of any one of claims 10-12, wherein, The exhaust fan control parameter includes an exhaust fan compressor operation starting pressure; and the method further includes: After starting the exhaust fan in the compressor refrigeration subsystem, comparing the actual condensing pressure with the exhaust fan compressor operation starting pressure; and If the actual condensing pressure is greater than or equal to the blower start-up pressure, triggering execution of the prediction of the target condensing pressure of the compressor refrigeration subsystem based on the blower control parameter.

15. The method of claim 2, wherein, The target refrigeration mode includes a mixed mode, the mixed mode being a mixed mode between the compressor mode and the fluorine pump mode, the target refrigeration system corresponding to the mixed mode including a compressor refrigeration subsystem and a fluorine pump refrigeration subsystem; the prediction of the rotation speed of the blower in the target refrigeration system according to the blower control strategy corresponding to the target refrigeration mode based on the blower control parameter and the working condition information includes: The prediction of the rotation speed of the blower in the compressor refrigeration subsystem according to the blower control strategy corresponding to the compressor mode based on the blower control parameter and the working condition information; The prediction of the rotation speed of the blower in the fluorine pump refrigeration subsystem according to the blower control strategy corresponding to the fluorine pump mode based on the blower control parameter and the working condition information.

16. A control device for spatially conditioning an object, characterized by It includes: An acquisition unit is configured to acquire a target refrigeration mode currently running by a space conditioning object; The space conditioning object cools the space where the space conditioning object is located through a target refrigeration system corresponding to the target refrigeration mode; the space conditioning object has multiple refrigeration modes, and each refrigeration mode corresponds to a respective blower control strategy; A processing unit is configured to predict the rotation speed of a blower in the target refrigeration system according to the blower control strategy corresponding to the target refrigeration mode; The processing unit is further configured to control the blower in the target refrigeration system to operate based on the predicted rotation speed.

17. A computer device, comprising: The computer device includes: A processor is adapted to implement a computer program; A computer readable storage medium stores a computer program, the computer program being adapted to be loaded and executed by the processor to implement the control method of the space conditioning object according to any one of claims 1-15.

18. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, the computer program being adapted to be loaded and executed by the processor to implement the control method of the space conditioning object according to any one of claims 1-15.

19. A computer program product, characterised in that, The computer program product includes a computer program, the computer program being executed by the processor to implement the control method of the space conditioning object according to any one of claims 1-15.

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