Compressor control method, system and equipment and storage medium

Abstract

The embodiment of the invention discloses a compressor control method, system and equipment and a storage medium, and is applied to a compressor control device, and the compressor control device comprises a first compressor and a second compressor which are connected in series; the method comprises the steps that the real-time container water temperature and the real-time air suction pressure of the first compressor are collected; the first compressor is controlled to work according to an air conditioner mode, the real-time container water temperature and the target water temperature; and the second compressor is controlled to work according to the real-time suction pressure and target pressure. And stable control of the double compressors and dynamic balance of unit operation are realized under different conditions of unit operation.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of air-conditioning technology, and specifically to a compressor control method, system, device, and storage medium. Background Art

[0002] The air compressor is the main body of the central air conditioning air source device. It is a device that converts the mechanical energy of the motor into gas pressure energy.

[0003] Existing air compressor units consist of a main unit driven by a main motor and a fan driven by a heat dissipation motor. These motors are all conventional motors. Consequently, the unit's operating frequency is not adjustable during operation, meaning it cannot dynamically adjust to changes in frequency. Furthermore, the unit operates in only two states: operating and non-operating. When air pressure is insufficient, the motor is turned on and in operation; when air pressure is sufficient, the motor is turned off and in non-operating. This non-continuous change in air pressure not only results in high energy consumption, which is detrimental to environmental protection and energy conservation, but also reduces air delivery quality. Summary of the Invention

[0004] To this end, the embodiments of the present application provide a compressor control method, system, device and storage medium to ensure stable control of the dual compressors and dynamic balance of the unit operation under different conditions.

[0005] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0006] According to a first aspect of an embodiment of the present application, a compressor control method is provided, which is applied to a compressor control device, wherein the compressor control device includes a first compressor and a second compressor connected in series; the method includes:

[0007] Collecting the real-time container water temperature and real-time suction pressure of the first compressor;

[0008] controlling the operation of the first compressor according to the air conditioning mode, the real-time container water temperature and the target water temperature;

[0009] The operation of the second compressor is controlled according to the real-time suction pressure and the target pressure.

[0010] Optionally, the compressor control device further comprises a condenser and an evaporator; the evaporator is connected to the condenser via the first compressor; the condenser is also connected to the second compressor;

[0011] According to the air conditioning mode being the heating mode, the real-time container water temperature is the water inlet temperature of the condenser;

[0012] The controlling the operation of the first compressor according to the air-conditioning mode, the real-time container water temperature and the target water temperature includes:

[0013] Calculating a power reduction value based on the real-time container water temperature being within a first temperature range to control the unloading power of the first compressor; the first temperature range is when the real-time container water temperature is greater than or equal to a first water temperature threshold; the first water temperature threshold is the sum of the target water temperature and a water temperature tolerance;

[0014] Based on the real-time container water temperature being in a second temperature range, a power increase value is calculated to control the loading power of the first compressor; the second temperature range is when the real-time container water temperature is less than a second water temperature threshold; the second water temperature threshold is the difference between the target water temperature and the water temperature tolerance.

[0015] Optionally, depending on whether the air-conditioning mode is a cooling mode or an ice storage mode, the real-time container water temperature is the water inlet temperature of the evaporator; and controlling the operation of the first compressor according to the air-conditioning mode, the real-time container water temperature, and the target water temperature includes:

[0016] calculating a power increase value based on the real-time container water temperature being within the first temperature range to control the loading power of the first compressor;

[0017] According to the real-time container water temperature being in the second temperature range, a power reduction value is calculated to control the unloading power of the first compressor.

[0018] Optionally, controlling the operation of the second compressor according to the real-time suction pressure and the target pressure includes:

[0019] Calculating a power increase value based on the real-time suction pressure being in a first pressure range to control the loading power of the first compressor; the first pressure range is when the real-time suction pressure is greater than a first pressure threshold; the first pressure threshold is the sum of the target pressure and a pressure tolerance;

[0020] Based on the real-time suction pressure being in a second pressure range, a power reduction value is calculated to control the unloading power of the first compressor; the second pressure range is when the real-time suction pressure is less than a second pressure threshold; the second pressure threshold is the difference between the target pressure and the pressure tolerance.

[0021] Optionally, the target pressure is calculated according to the following steps:

[0022] collecting the real-time evaporation pressure of the evaporator and the real-time condensation pressure of the condenser;

[0023] The target pressure is calculated based on the real-time evaporation pressure and the real-time condensation pressure.

[0024] Optionally, a heat exchanger is further provided between the first compressor and the second compressor; the method further comprises:

[0025] collecting the real-time pressure of the heat exchanger in real time;

[0026] The operation of the second compressor is controlled according to the real-time pressure and a second target pressure, where the second target pressure represents a control target of the real-time pressure of the heat exchanger.

[0027] Optionally, the method further includes:

[0028] Calculating the corresponding real-time saturation temperature according to the real-time pressure of the heat exchanger;

[0029] The second compressor is controlled to operate according to the real-time saturation temperature and a target saturation temperature, wherein the target saturation temperature is calculated according to the second target pressure.

[0030] According to a second aspect of an embodiment of the present application, a compressor control device is provided, comprising: a first compressor and a second compressor connected in series; and further comprising:

[0031] A parameter acquisition module, configured to acquire the real-time container water temperature and the real-time suction pressure of the first compressor;

[0032] a first compressor control module, configured to control the operation of the first compressor according to an air-conditioning mode, the real-time container water temperature, and a target water temperature;

[0033] The second compressor control module is configured to control the operation of the second compressor according to the real-time suction pressure and the target pressure.

[0034] According to a third aspect of an embodiment of the present application, an electronic device is provided, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in the first aspect above.

[0035] According to a fourth aspect of an embodiment of the present application, a computer-readable storage medium is provided, on which computer-readable instructions are stored. The computer-readable instructions can be executed by a processor to implement the method described in the first aspect above.

[0036] In summary, embodiments of the present application provide a compressor control method, system, device, and storage medium, which are applied to a compressor control device comprising a first compressor and a second compressor connected in series. The method collects the real-time container water temperature and real-time suction pressure of the first compressor; controls the operation of the first compressor based on the air conditioning mode, the real-time container water temperature, and the target water temperature; and controls the operation of the second compressor based on the real-time suction pressure and the target pressure. This ensures stable control of the dual compressors and dynamic balance of the unit's operation under various operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0038] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons skilled in the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0039] Figure 1 A flow chart of a compressor control method provided in an embodiment of the present application;

[0040] Figure 2 A schematic diagram of the system architecture provided in an embodiment of the present application;

[0041] Figure 3 A flow chart of the container water temperature control provided in an embodiment of the present application;

[0042] Figure 4 A pressure control flow chart provided for an embodiment of the present application;

[0043] Figure 5 A block diagram of a compressor control device provided in an embodiment of the present application;

[0044] Figure 6 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown;

[0045] Figure 7 A schematic diagram of a computer-readable storage medium provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0046] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0047] Figure 1 The flow chart of the compressor control method provided by the embodiment of the present application is shown, and the method comprises the following steps:

[0048] Step 101: collecting the real-time container water temperature and real-time suction pressure of the first compressor;

[0049] Step 102: Controlling the operation of the first compressor according to the air conditioning mode, the real-time container water temperature, and the target water temperature;

[0050] Step 103: Control the operation of the second compressor according to the real-time suction pressure and the target pressure.

[0051] In a possible implementation manner, the compressor control device further includes a condenser and an evaporator; the evaporator is connected to the condenser through the first compressor; and the condenser is also connected to the second compressor.

[0052] In one possible implementation, the air conditioning mode is a heating mode, and the real-time container water temperature is the inlet water temperature of the condenser. In step 102, controlling the operation of the first compressor according to the air conditioning mode, the real-time container water temperature, and the target water temperature includes:

[0053] Based on the real-time container water temperature being in a first temperature range, a power decrease value is calculated to control the unloading power of the first compressor; the first temperature range is when the real-time container water temperature is greater than or equal to a first water temperature threshold; the first water temperature threshold is the sum of the target water temperature and the water temperature tolerance; based on the real-time container water temperature being in a second temperature range, a power increase value is calculated to control the loading power of the first compressor; the second temperature range is when the real-time container water temperature is less than a second water temperature threshold; the second water temperature threshold is the difference between the target water temperature and the water temperature tolerance.

[0054] In one possible implementation, depending on whether the air conditioning mode is a cooling mode or an ice storage mode, the real-time container water temperature is the water inlet temperature of the evaporator; in step 102, controlling the operation of the first compressor based on the air conditioning mode, the real-time container water temperature, and the target water temperature includes:

[0055] Based on the real-time container water temperature being in the first temperature range, a power increase value is calculated to control the loading power of the first compressor; based on the real-time container water temperature being in the second temperature range, a power decrease value is calculated to control the unloading power of the first compressor.

[0056] In a possible implementation, in step 103, controlling the operation of the second compressor according to the real-time suction pressure and the target pressure includes:

[0057] Based on the real-time suction pressure being in a first pressure range, a power increase value is calculated to control the loading power of the first compressor; the first pressure range is when the real-time suction pressure is greater than a first pressure threshold; the first pressure threshold is the sum of the target pressure and the pressure tolerance; based on the real-time suction pressure being in a second pressure range, a power decrease value is calculated to control the unloading power of the first compressor; the second pressure range is when the real-time suction pressure is less than a second pressure threshold; the second pressure threshold is the difference between the target pressure and the pressure tolerance.

[0058] In a possible implementation manner, the target pressure is calculated according to the following steps: collecting the real-time evaporation pressure of the evaporator and the real-time condensation pressure of the condenser; and calculating the target pressure according to the real-time evaporation pressure and the real-time condensation pressure.

[0059] In one possible embodiment, a heat exchanger is further provided between the first compressor and the second compressor; the method further comprises: collecting the real-time pressure of the heat exchanger in real time; controlling the operation of the second compressor according to the real-time pressure and a second target pressure, wherein the second target pressure represents the control target of the real-time pressure of the heat exchanger.

[0060] In one possible embodiment, the method further includes: calculating a corresponding real-time saturation temperature based on the real-time pressure of the heat exchanger; controlling the operation of the second compressor based on the real-time saturation temperature and a target saturation temperature, wherein the target saturation temperature is calculated based on the second target pressure.

[0061] Dynamic control of the dual compressors ensures smooth operation under varying operating conditions. Throughout the control process, the second compressor uses the suction pressure of the first compressor as its control target, controlling its operation. The first compressor uses water temperature as its control target, controlling its own operation. Under different operating modes, the control targets of the first and second compressors are interchangeable.

[0062] Figure 2The system architecture provided by the embodiment of the present application is shown. The condenser and the evaporator constitute a refrigeration system. After the evaporator is connected to compressor A, there is a path connecting to the condenser, and another path returns to the condenser through compressor B. The condenser is also connected to compressor B, and compressor A and compressor B are connected in series. The two compressors share a container system, and each compressor is equipped with a corresponding valve (not shown in the figure) to cooperate with the logical control of the compressor.

[0063] Under different operating modes, the control targets of compressors A and B can be interchanged. For example, if compressor B's adjustable target is the tank water temperature, compressor A's control target can be the suction pressure of compressor B. Alternatively, if compressor A's adjustable target is the tank water temperature, compressor B's control target can be the suction pressure of compressor A. By controlling the output of each compressor based on temperature and pressure, dual-compressor control is more stable.

[0064] Compressor control is based on the tank water temperature as the energy-adjustable target. The tank water temperature is set according to the operating mode, and different operating modes require different tank water temperature settings. In heating mode, the tank water temperature is the condenser's inlet and outlet water temperatures; in cooling and ice storage modes, it is the evaporator's inlet and outlet water temperatures. The inlet and outlet water temperatures can be either the inlet or outlet water temperatures. In full heat recovery mode, the tank water temperature is the heat recovery tank's outlet water temperature. In inlet water control mode, the tank water temperature is derived from the tank's inlet water temperature.

[0065] Figure 3 The following figure shows the logical flow of container water temperature control when the operating modes are heating mode, cooling mode, and ice storage mode, which specifically includes:

[0066] Step 1: Determine whether the current operating mode is heating mode; if so, proceed to step 2; if not, it is cooling and ice storage mode, then proceed to step 5:

[0067] Step 2: Obtain the real-time container water temperature and determine whether the real-time container water temperature is greater than or equal to the upper water temperature threshold. If so, perform an unloading action, i.e., control the unit power to reduce, thereby lowering the water temperature. If less than, perform step 3. The upper water temperature threshold is the sum of the target water temperature and the water temperature tolerance.

[0068] Step 3: Further determine whether the real-time container water temperature is between the lower limit of the water temperature threshold and the upper limit of the water temperature threshold; if so, keep the unit running unchanged; if not, execute step 4; the lower limit of the water temperature threshold is the difference between the target water temperature and the water temperature tolerance;

[0069] Step 4: further determine whether the real-time container water temperature is less than the lower limit of the water temperature threshold. If so, perform loading, that is, control the unit power to increase, thereby increasing the water temperature.

[0070] Step 5: Obtain the real-time container water temperature and determine whether the real-time container water temperature is greater than or equal to the upper water temperature threshold. If so, perform loading, i.e., control the unit power to increase, thereby increasing the water temperature. If less than, execute step 6. The upper water temperature threshold is the sum of the target water temperature and the water temperature tolerance.

[0071] Step 6: Further determine whether the real-time container water temperature is between the lower limit of the water temperature threshold and the upper limit of the water temperature threshold; if so, keep the unit running unchanged; if not, execute step 7; the lower limit of the water temperature threshold is the difference between the target water temperature and the water temperature tolerance; the target water temperature is set by the user.

[0072] Step 7: Further determine whether the real-time container water temperature is less than the lower limit of the water temperature threshold. If so, perform the unloading action, that is, control the unit power to reduce, thereby reducing the water temperature.

[0073] When the compressor is in standby mode, the suction and exhaust pressures are balanced. After the compressor is turned on, the higher the work power, the greater the difference between the suction and exhaust pressures, the lower the suction pressure, and the higher the exhaust pressure. The pressure involved in this application is the suction pressure collected at the suction port of the compressor with the goal of adjusting the water temperature. The higher the loading, the lower the suction pressure; if it is a variable frequency air conditioner, the loading action is to increase the frequency; if it is a fixed frequency air conditioner, the loading action is to increase the guide vane opening. The loading action is to increase the power and reduce the suction pressure.

[0074] In order to maintain the balance of the operating load of the dual compressors in the system, the pressure is controlled by taking the suction pressure of the compressor with the container water temperature as the adjustable target as the control target. Figure 4 The pressure control flow chart provided in the embodiment of the present application is shown, which specifically includes:

[0075] Step 1: Determine whether the real-time pressure is greater than the upper pressure threshold. If so, perform a loading action, i.e., control the unit power to increase, thereby reducing the pressure. If less than or equal to the upper pressure threshold, perform step 2. The upper pressure threshold is the sum of the target pressure and the pressure tolerance.

[0076] Step 2: Determine whether the real-time pressure is between the lower limit of the pressure threshold and the upper limit of the pressure threshold; if so, keep the unit running unchanged; if not, execute step 3; the lower limit of the water temperature threshold is the difference between the target pressure and the pressure tolerance;

[0077] Step 3: Determine whether the real-time pressure is less than the lower limit of the pressure threshold. If so, perform the unloading action, that is, control the unit power to decrease, thereby increasing the pressure.

[0078] The target pressure may be calculated according to the following formula: target pressure = coefficient K*SQRT (evaporation pressure*condensation pressure); wherein SQRT represents square root.

[0079] The evaporation pressure sensor is installed on the evaporator, and the condensation pressure sensor is installed on the condenser. The target pressure changes in real time according to the changes in the evaporation pressure and the condensation pressure to achieve dynamic balance.

[0080] In one possible embodiment, a heat exchanger (economizer) is further disposed between the first and second compressors. For compressors whose energy is adjusted by pressure, the control pressure may be the top pressure of the economizer. Alternatively, the saturation temperature corresponding to the relevant pressure may be used. The saturation temperature is calculated based on pressure and characteristic laws, and the corresponding real-time saturation temperature is calculated based on the real-time pressure of the heat exchanger. The operation of the second compressor is controlled based on the real-time saturation temperature and the target saturation temperature, which is calculated based on the second target pressure.

[0081] In summary, embodiments of the present application provide a compressor control method, which is applied to a compressor control device comprising a first compressor and a second compressor connected in series. The method collects the real-time container water temperature and real-time suction pressure of the first compressor; controls the operation of the first compressor based on the air conditioning mode, the real-time container water temperature, and a target water temperature; and controls the operation of the second compressor based on the real-time suction pressure and the target pressure. This method ensures stable control of the dual compressors and dynamic balance of the unit's operation under various operating conditions.

[0082] Based on the same technical concept, the embodiment of the present application also provides a compressor control device, such as Figure 5 As shown, the compressor control device includes: a first compressor and a second compressor connected in series; and further includes:

[0083] A parameter acquisition module 501 is configured to acquire the real-time container water temperature and the real-time suction pressure of the first compressor;

[0084] A first compressor control module 502 is configured to control the operation of the first compressor according to the air conditioning mode, the real-time container water temperature, and the target water temperature;

[0085] The second compressor control module 503 is configured to control the operation of the second compressor according to the real-time suction pressure and the target pressure.

[0086] The present application also provides an electronic device corresponding to the method provided in the above embodiment. Figure 6, which shows a schematic diagram of an electronic device provided in some embodiments of the present application. The electronic device 20 may include: a processor 200, a memory 201, a bus 202, and a communication interface 203. The processor 200, the communication interface 203, and the memory 201 are connected via the bus 202. The memory 201 stores a computer program executable on the processor 200. When the processor 200 executes the computer program, it executes the method provided in any of the aforementioned embodiments of the present application.

[0087] The memory 201 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage. The system network element and at least one other network element are connected via at least one physical port 203 (which may be wired or wireless), and may utilize the Internet, a wide area network, a local area network, a metropolitan area network, or the like.

[0088] The bus 202 may be an ISA bus, a PCI bus, or an EISA bus. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 201 is used to store programs. The processor 200 executes the programs upon receiving execution instructions. The methods disclosed in any of the aforementioned embodiments of the present application may be applied to or implemented by the processor 200.

[0089] The processor 200 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the processor 200 or by software instructions. The above processor 200 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of this application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory 201 , and the processor 200 reads the information in the memory 201 and completes the steps of the above method in combination with its hardware.

[0090] The electronic device provided in the embodiments of the present application and the method provided in the embodiments of the present application are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented by them.

[0091] The present application also provides a computer-readable storage medium corresponding to the method provided in the above embodiment. Figure 7 The computer-readable storage medium shown is a CD 30 on which a computer program (ie, a program product) is stored. When the computer program is run by a processor, the method provided by any of the aforementioned embodiments is executed.

[0092] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0093] The computer-readable storage medium provided in the above-mentioned embodiments of the present application and the method provided in the embodiments of the present application are based on the same inventive concept and have the same beneficial effects as the method adopted, run or implemented by the application program stored therein.

[0094] It should be noted that:

[0095] The algorithms and displays provided herein are not inherently related to any particular computer, virtual device, or other device. Various general-purpose devices may also be used in conjunction with the teachings herein. Based on the above description, it is apparent that the structure required for constructing such devices is suitable. In addition, the present application is not directed to any specific programming language. It should be understood that various programming languages ​​may be utilized to implement the present application described herein, and the above description of specific languages ​​is provided for the purpose of disclosing the best mode of implementation of the present application.

[0096] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0097] Similarly, it should be understood that in order to streamline the present application and aid in understanding one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present application, various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting an intention that the claimed application requires more features than are expressly recited in each claim. Rather, as reflected in the claims below, inventive aspects lie in fewer than all the features of the individual embodiments disclosed above. Accordingly, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim itself serving as a separate embodiment of the present application.

[0098] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition may be divided into multiple submodules or subunits or subcomponents. All features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed herein may be combined in any combination, except that at least some of such features and / or processes or units are mutually exclusive. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0099] Furthermore, those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination.

[0100] The various component embodiments of the present application can be implemented in hardware, or implemented in a software module running on one or more processors, or implemented in a combination thereof. Those skilled in the art will appreciate that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all of the functions of some or all of the components in the creation device of the virtual machine according to an embodiment of the present application. The application can also be implemented as a part or all of the equipment or device program (for example, computer program and computer program product) for performing the method described herein. Such a program realizing the present application can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0101] It should be noted that the above embodiments illustrate rather than limit the present application, and that a person skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbols placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present application may be implemented by means of hardware comprising several different elements and by means of appropriately programmed computers. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0102] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A compressor control method, characterized in that: Applied to a compressor control device, the compressor control device includes a first compressor and a second compressor connected in series; the method includes: Collecting the real-time container water temperature and real-time suction pressure of the first compressor; controlling the operation of the first compressor according to the air conditioning mode, the real-time container water temperature and the target water temperature; The operation of the second compressor is controlled according to the real-time suction pressure and the target pressure.

2. The method according to claim 1, wherein The compressor control device further includes a condenser and an evaporator; the evaporator is connected to the condenser via the first compressor; the condenser is also connected to the second compressor; According to the air conditioning mode being the heating mode, the real-time container water temperature is the water inlet temperature of the condenser; The controlling the operation of the first compressor according to the air-conditioning mode, the real-time container water temperature and the target water temperature includes: Calculating a power reduction value based on the real-time container water temperature being within a first temperature range to control the unloading power of the first compressor; the first temperature range is when the real-time container water temperature is greater than or equal to a first water temperature threshold; the first water temperature threshold is the sum of the target water temperature and a water temperature tolerance; Based on the real-time container water temperature being in a second temperature range, a power increase value is calculated to control the loading power of the first compressor; the second temperature range is when the real-time container water temperature is less than a second water temperature threshold; the second water temperature threshold is the difference between the target water temperature and the water temperature tolerance.

3. The method according to claim 2, wherein According to whether the air-conditioning mode is a cooling mode or an ice storage mode, the real-time container water temperature is the water inlet temperature of the evaporator; and controlling the operation of the first compressor according to the air-conditioning mode, the real-time container water temperature, and the target water temperature includes: calculating a power increase value based on the real-time container water temperature being within the first temperature range to control the loading power of the first compressor; According to the real-time container water temperature being in the second temperature range, a power reduction value is calculated to control the unloading power of the first compressor.

4. The method according to claim 1, wherein The controlling the operation of the second compressor according to the real-time suction pressure and the target pressure includes: Calculating a power increase value based on the real-time suction pressure being in a first pressure range to control the loading power of the first compressor; the first pressure range is when the real-time suction pressure is greater than a first pressure threshold; the first pressure threshold is the sum of the target pressure and a pressure tolerance; Based on the real-time suction pressure being in a second pressure range, a power reduction value is calculated to control the unloading power of the first compressor; the second pressure range is when the real-time suction pressure is less than a second pressure threshold; the second pressure threshold is the difference between the target pressure and the pressure tolerance.

5. The method according to claim 2 or 4, characterized in that The target pressure is calculated according to the following steps: collecting the real-time evaporation pressure of the evaporator and the real-time condensation pressure of the condenser; The target pressure is calculated based on the real-time evaporation pressure and the real-time condensation pressure.

6. The method according to claim 1, wherein A heat exchanger is further provided between the first compressor and the second compressor; the method further comprises: collecting the real-time pressure of the heat exchanger in real time; The operation of the second compressor is controlled according to the real-time pressure and a second target pressure, where the second target pressure represents a control target of the real-time pressure of the heat exchanger.

7. The method according to claim 6, wherein The method further comprises: Calculating the corresponding real-time saturation temperature according to the real-time pressure of the heat exchanger; The second compressor is controlled to operate according to the real-time saturation temperature and a target saturation temperature, wherein the target saturation temperature is calculated according to the second target pressure.

8. A compressor control device, comprising: a first compressor and a second compressor connected in series; Also includes: A parameter acquisition module, configured to acquire the real-time container water temperature and the real-time suction pressure of the first compressor; a first compressor control module, configured to control the operation of the first compressor according to an air-conditioning mode, the real-time container water temperature, and a target water temperature; The second compressor control module is configured to control the operation of the second compressor according to the real-time suction pressure and the target pressure.

9. An electronic device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that Computer-readable instructions are stored thereon, and the computer-readable instructions can be executed by a processor to implement the method according to any one of claims 1 to 7.

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