Control method of heat pump system, controller, heat pump system and medium

Abstract

The embodiment of the invention provides a control method of a heat pump system, a controller, the heat pump system and a medium, the heat pump system comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger and a plate heat exchanger, and the plate heat exchanger is provided with a heat exchange main path and a heat exchange auxiliary path. A refrigerant circulation loop is formed among the compressor, the outdoor heat exchanger, the indoor heat exchanger and the heat exchange main path, one end of the heat exchange auxiliary path communicates with the heat exchange main path through an auxiliary path electronic expansion valve, and the other end communicates with an enthalpy increasing opening of the compressor. The heat pump system can obtain the operation mode, the outdoor environment temperature, the side road superheat degree of the heat exchange side road and the operation parameters of a compressor; and then the opening degree of the auxiliary road electronic expansion valve is controlled according to the operation mode, the outdoor environment temperature, the auxiliary road superheat degree and the operation parameters. Therefore, different operation modes can be distinguished, the opening degree of the auxiliary electronic expansion valve is controlled through the multi-dimensional parameters, control is more accurate, and the heat pump can be brought into full play.

Description

Technical Field

[0001] The present application relates to the technical field of heat pumps, and in particular to a control method, a controller, a heat pump system and a medium of a heat pump system. Background Art

[0002] In related technologies, heat pump heating is gradually being used to replace the original charcoal heating in areas with low ambient temperatures. However, in low-temperature conditions, as the ambient temperature decreases, the heat pump system will have insufficient refrigerant circulation and insufficient heating capacity. The emergence of the enthalpy injection system can increase the refrigerant circulation volume of the heat pump system, which can not only solve the low-temperature heating problem, but also improve the system's cooling capacity. Therefore, how to control the auxiliary refrigerant flow of the enthalpy injection system is crucial. However, the previous control methods for cooling and heating were only controlled based on a target superheat, which was too rough and difficult to maximize the heat pump system. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a control method, a controller, a heat pump system and a medium for a heat pump system, which aims to facilitate the heat pump system to maximize its capacity.

[0004] In a first aspect, an embodiment of the present application provides a control method for a heat pump system, wherein the heat pump system includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, and a plate heat exchanger, wherein the plate heat exchanger is provided with a main heat exchange path and an auxiliary heat exchange path, wherein a refrigerant circulation loop is formed between the compressor, the outdoor heat exchanger, the indoor heat exchanger, and the main heat exchange path, wherein one end of the auxiliary heat exchange path is connected to the main heat exchange path through an auxiliary electronic expansion valve, and the other end is connected to an enthalpy increase port of the compressor; the method includes:

[0005] Acquiring the operating mode of the heat pump system, the outdoor ambient temperature, the auxiliary circuit superheat of the auxiliary heat exchange circuit, and the operating parameters of the compressor;

[0006] The opening degree of the auxiliary circuit electronic expansion valve is controlled according to the operation mode, the outdoor ambient temperature, the auxiliary circuit superheat and the operation parameters.

[0007] According to some embodiments of the present application, the operating parameters include the operating frequency of the compressor; and controlling the opening of the auxiliary circuit electronic expansion valve according to the operating mode, the outdoor ambient temperature, the auxiliary circuit superheat and the operating parameters includes:

[0008] When the operating mode is a cooling mode, determining a temperature interval within which the outdoor ambient temperature falls;

[0009] When the outdoor ambient temperature is greater than a first preset temperature, adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat;

[0010] When the outdoor ambient temperature is lower than a first preset temperature and higher than a second preset temperature, adjusting the opening of the auxiliary electronic expansion valve according to the operating frequency of the compressor;

[0011] When the outdoor environment temperature is lower than a second preset temperature, the auxiliary circuit electronic expansion valve is closed.

[0012] According to some embodiments of the present application, before adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat, the method further includes:

[0013] When the operation time of the compressor reaches a first preset time, the auxiliary circuit electronic expansion valve is opened, and a preset number of steps are opened at intervals of a second preset time;

[0014] After the real-time opening of the auxiliary circuit electronic expansion valve reaches a preset opening, the opening of the auxiliary circuit electronic expansion valve is adjusted according to the auxiliary circuit superheat.

[0015] According to some embodiments of the present application, adjusting the opening of the auxiliary electronic expansion valve according to the operating frequency of the compressor includes one of the following:

[0016] When the operating frequency of the compressor rises to a first preset frequency, the auxiliary circuit electronic expansion valve is opened for a preset number of steps at intervals of a second preset time, until the real-time opening of the auxiliary circuit electronic expansion valve reaches a preset opening, and then the opening of the auxiliary circuit electronic expansion valve is adjusted according to the auxiliary circuit superheat;

[0017] When the operating frequency of the compressor drops to a second preset frequency, the operating frequency of the compressor is controlled to stay at the second preset frequency for a third preset time, and then the auxiliary electronic expansion valve is closed, wherein the second preset frequency is less than the first preset frequency.

[0018] According to some embodiments of the present application, adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat includes:

[0019] Determining a first target superheat of the heat exchange auxiliary circuit according to the operating frequency of the compressor;

[0020] The opening degree of the auxiliary circuit electronic expansion valve is adjusted according to the auxiliary circuit superheat and the first target superheat.

[0021] According to some embodiments of the present application, the operating parameter includes the exhaust superheat of the compressor; and controlling the opening of the auxiliary circuit electronic expansion valve according to the operating mode, the outdoor ambient temperature, the auxiliary circuit superheat and the operating parameter includes:

[0022] When the operation mode is a heating mode or a hot water mode, determining a second target superheat degree of the heat exchange auxiliary circuit according to the outdoor ambient temperature;

[0023] The opening degree of the auxiliary circuit electronic expansion valve is adjusted according to the exhaust gas superheat, the auxiliary circuit superheat and the second target superheat.

[0024] According to some embodiments of the present application, before adjusting the opening of the auxiliary circuit electronic expansion valve according to the exhaust superheat, the auxiliary circuit superheat and the second target superheat, the method further includes:

[0025] When the start time of the compressor reaches a first preset time or the end time of the defrost mode reaches a first preset time, the opening of the auxiliary electronic expansion valve is opened to a preset initial opening.

[0026] According to some embodiments of the present application, adjusting the opening of the auxiliary circuit electronic expansion valve according to the exhaust superheat, the auxiliary circuit superheat and the second target superheat includes one of the following:

[0027] When the exhaust gas superheat is greater than a first preset superheat, adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat and the second target superheat;

[0028] When the exhaust gas superheat is less than the first preset superheat and greater than the second preset superheat, adjusting the opening of the auxiliary circuit electronic expansion valve to the minimum allowable opening;

[0029] When the exhaust gas superheat is less than the second preset superheat, the auxiliary circuit electronic expansion valve is closed.

[0030] According to some embodiments of the present application, the method further includes:

[0031] In the case of hot water making mode, obtain the heat pump outlet water temperature;

[0032] The maximum allowable opening of the auxiliary circuit electronic expansion valve is corrected according to the outlet water temperature of the heat pump.

[0033] According to some embodiments of the present application, the maximum allowable opening of the auxiliary circuit electronic expansion valve is corrected according to the outlet water temperature of the heat pump, including one of the following:

[0034] When the outlet water temperature of the heat pump is greater than the preset outlet water temperature, the maximum allowable opening of the auxiliary circuit electronic expansion valve is corrected to a first opening;

[0035] When the outlet water temperature of the heat pump is lower than the preset outlet water temperature, the maximum allowable opening of the auxiliary electronic expansion valve is corrected to a second opening, wherein the second opening is lower than the first opening.

[0036] In a second aspect, an embodiment of the present application provides a controller comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the control method of the heat pump system of the first aspect mentioned above when running the computer program.

[0037] In a third aspect, an embodiment of the present application provides a heat pump system, comprising the controller of the second aspect described above.

[0038] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the control method of the heat pump system as described in the first aspect above.

[0039] In a fifth aspect, an embodiment of the present application provides a computer program product, comprising a computer program or computer instructions, characterized in that the computer program or the computer instructions are stored in a computer-readable storage medium, a processor of a computer device reads the computer program or the computer instructions from the computer-readable storage medium, and the processor executes the computer program or the computer instructions, so that the computer device executes the control method of the heat pump system as described in the first aspect above.

[0040] According to the technical solution of the embodiment of the present application, at least the following beneficial effects are achieved: first, the embodiment of the present application obtains the operation mode of the heat pump system, the outdoor ambient temperature, the auxiliary circuit superheat of the heat exchange auxiliary circuit, and the operation parameters of the compressor; then, the opening of the auxiliary circuit electronic expansion valve is controlled according to the operation mode, the outdoor ambient temperature, the auxiliary circuit superheat and the operation parameters. Therefore, the embodiment of the present application can distinguish different operation modes and use multi-dimensional parameters to control the opening of the auxiliary circuit electronic expansion valve, which is more accurate and more conducive to maximizing the heat pump's capacity.

[0041] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0043] Figure 1 is a schematic structural diagram of a heat pump system provided by an embodiment of the present application;

[0044] Figure 2 is a flow chart of a control method for a heat pump system provided by an embodiment of the present application;

[0045] Figure 3 is a flow chart of a control method for a heat pump system provided by another embodiment of the present application;

[0046] Figure 4 is a flow chart of a control method for a heat pump system provided by another embodiment of the present application;

[0047] Figure 5 is a flow chart of a control method for a heat pump system provided by another embodiment of the present application;

[0048] Figure 6 is a flow chart of a control method for a heat pump system provided by another embodiment of the present application;

[0049] Figure 7 is a flow chart of a control method for a heat pump system provided by another embodiment of the present application;

[0050] Figure 8 is a flow chart of a control method for a heat pump system provided by another embodiment of the present application;

[0051] Fig. 9 is a flow chart of a control method for a heat pump system provided by another embodiment of the present application;

[0052] Fig.10 is a flow chart of a control method for a heat pump system provided by another embodiment of the present application;

[0053] Fig.11 is a control rule diagram between the outdoor ambient temperature and the auxiliary circuit electronic expansion valve provided by an embodiment of the present application;

[0054] Fig.12 is a control rule diagram between the compressor frequency and the auxiliary circuit electronic expansion valve provided by an embodiment of the present application;

[0055] Fig.13 is a control rule diagram between the auxiliary circuit superheat and the auxiliary circuit electronic expansion valve adjustment step number in the cooling mode provided by an embodiment of the present application;

[0056] Fig.14 It is a control rule diagram between the auxiliary circuit superheat and the auxiliary circuit electronic expansion valve adjustment step number in the heating or hot water mode provided by an embodiment of the present application;

[0057] Fig.15 is a control rule diagram between exhaust gas superheat and auxiliary circuit electronic expansion valve provided by an embodiment of the present application;

[0058] Fig.16 is a correction rule diagram of the maximum allowable opening of the auxiliary circuit electronic expansion valve provided by an embodiment of the present application;

[0059] Fig.17 It is a schematic diagram of a controller for executing a control method for a heat pump system provided in one embodiment of the present application. DETAILED DESCRIPTION

[0060] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0061] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0062] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0063] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0064] In some cases, heat pump heating is gradually used to replace the original charcoal heating in areas with low ambient temperatures. However, in low temperature conditions, as the ambient temperature decreases, the heat pump system will have insufficient refrigerant circulation and insufficient heating. The emergence of the enthalpy injection system can increase the refrigerant circulation of the heat pump system, which can not only solve the low-temperature heating problem, but also improve the cooling capacity of the system. Therefore, how to control the auxiliary refrigerant flow of the enthalpy injection system is crucial. However, the previous control method of cooling and heating is only based on a target superheat, which is too rough and difficult to maximize the heat pump system.

[0065] Based on the above situation, the embodiments of the present application propose a control method, a controller, a heat pump system and a medium for a heat pump system, aiming to facilitate maximizing the capacity of the heat pump system.

[0066] Various embodiments of the heat pump system of the present application are further described below in conjunction with the accompanying drawings.

[0067] like Figure 1 As shown, Figure 1 It is a schematic diagram of the structure of a heat pump system provided in one embodiment of the present application.

[0068] In one embodiment, the heat pump system includes a compressor 100, an outdoor heat exchanger 200, an indoor heat exchanger and a plate heat exchanger 400. The plate heat exchanger 400 is provided with a main heat exchange circuit and an auxiliary heat exchange circuit. A refrigerant circulation loop is formed between the compressor 100, the outdoor heat exchanger 200, the indoor heat exchanger and the main heat exchange circuit. One end of the auxiliary heat exchange circuit is connected to the main heat exchange circuit through the auxiliary circuit electronic expansion valve EXVC, and the other end is connected to the enthalpy increase port of the compressor 100.

[0069] Among them, the indoor heat exchanger can be an indoor unit heat exchanger 320, that is, a heat exchanger used to adjust the air temperature; it can also be a water tank heat exchanger 310, that is, a heat exchanger used to adjust the water temperature of domestic water. The embodiment of the present application does not make specific limitations on this.

[0070] In addition, the plate heat exchanger 400 is a device for heat transfer, usually used for heating, cooling or evaporating fluid. It consists of a series of flat plates with certain gaps between them, and the fluid flows in these gaps to achieve the purpose of heat transfer. The advantages of the plate heat exchanger 400 include high heat transfer efficiency, small space occupation, and easy maintenance.

[0071] In one embodiment, the heat pump system may further include a four-way valve 500 , which is connected to the outdoor heat exchanger 200 , the indoor heat exchanger, and the exhaust port and the return port of the compressor 100 , respectively.

[0072] In one embodiment, the heat pump system may further include an oil separator 600, the input port of the oil separator 600 is connected to the exhaust port of the compressor 100, the oil output port of the oil separator 600 is connected to the return air port of the compressor 100, and the refrigerant output port of the oil separator 600 is connected to the four-way valve 500.

[0073] Specifically, the main function of the oil separator 600 is to separate the lubricating oil from the refrigerant vapor discharged from the compressor 100. Due to the different densities of the lubricating oil and the refrigerant, the lubricating oil is separated from the gaseous refrigerant through the inertial separation, gravity sedimentation, centrifugal force and other effects of the oil separator 600. In addition, the separated lubricating oil returns to the compressor 100 through the oil return line at the bottom of the oil separator 600, ensuring that the compressor 100 has enough lubricating oil for lubrication and preventing the compressor 100 from being damaged due to lack of oil. At the same time, the amount of oil entering the subsequent equipment such as the condenser is reduced to avoid affecting the heat exchange effect.

[0074] An oil return capillary 610 may be provided in the oil return pipeline. Since the inner diameter of the oil return capillary 610 is relatively small, the oil can smoothly flow back to the compressor 100 through capillary action.

[0075] In one embodiment, the heat pump system may further include a liquid storage tank 700 for storing excess refrigerant, which has a refrigerant balancing function and can adjust the system refrigerant flow rate according to the system pressure; the liquid storage tank 700 is connected to the refrigerant pipeline, and when the refrigerant demand of the refrigerant pipeline is large, a portion of the refrigerant can be appropriately discharged from the liquid storage tank 700.

[0076] In one embodiment, the heat pump system may further include a gas-liquid separator 800. In cooling mode or dehumidification mode, the gas phase input port of the gas-liquid separator 800 is connected to the four-way valve 500, and the liquid phase output port of the gas-liquid separator 800 is connected to the return air port of the compressor 100.

[0077] Specifically, the gas-liquid separator 800 is an important component, which is mainly used to separate the gas and liquid in the refrigerant to ensure that only the gaseous refrigerant enters the compressor 100, thereby protecting the compressor 100 from damage such as liquid hammer.

[0078] In one embodiment, the heat pump system may further include a switch valve SV5 , which is disposed between the outlet of the heat exchange auxiliary circuit and the gas phase input port of the gas-liquid separator 800 .

[0079] Based on the hardware structure of the heat pump system in each of the above embodiments, various embodiments of the control method of the heat pump system of the present application are respectively proposed below.

[0080] like Figure 2 As shown, Figure 2 It is a flow chart of a control method of a heat pump system provided by an embodiment of the present application; the control method of the heat pump system may include but is not limited to step S210 and step S220.

[0081] Step S210, obtaining the operation mode of the heat pump system, the outdoor ambient temperature, the auxiliary circuit superheat of the heat exchange auxiliary circuit, and the operation parameters of the compressor;

[0082] Step S220: controlling the opening of the auxiliary circuit electronic expansion valve according to the operation mode, outdoor ambient temperature, auxiliary circuit superheat and operation parameters.

[0083] In one embodiment, the embodiment of the present application controls the opening of the auxiliary circuit electronic expansion valve according to the operation mode, outdoor ambient temperature, auxiliary circuit superheat and operation parameters. Therefore, the embodiment of the present application can distinguish different operation modes and use multi-dimensional parameters to control the opening of the auxiliary circuit electronic expansion valve, which is more accurate and more conducive to maximize the heat pump.

[0084] It can be understood that the above-mentioned operating mode can be a cooling mode, or a heating or hot water making mode, and the embodiments of the present application do not specifically limit this.

[0085] In addition, it can be understood that the above-mentioned operating parameters may include the operating frequency of the compressor, the exhaust superheat of the compressor, or other types of parameters, and the embodiments of the present application do not specifically limit this.

[0086] In addition, it should be noted that the auxiliary circuit superheat of the heat exchange auxiliary circuit may refer to the temperature difference between the outlet refrigerant temperature and the inlet refrigerant temperature of the heat exchange auxiliary circuit.

[0087] It should be noted that the above step S220 can be specifically divided into control logic in cooling mode and control logic in heating or hot water mode. The control logic in cooling mode can be as follows: Figure 3 As shown, the control logic in heating or hot water mode can be as follows Figure 7 shown.

[0088] like Figure 3 As shown, Figure 3 It is a flow chart of a control method for a heat pump system provided by another embodiment of the present application; in the cooling mode, regarding the above-mentioned step S220, it may include but is not limited to step S310, step S320, step S330 and step S340.

[0089] Step S310: when the operation mode is the cooling mode, determine the temperature range of the outdoor ambient temperature;

[0090] Step S320: When the outdoor ambient temperature is greater than a first preset temperature, adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat;

[0091] Step S330: When the outdoor ambient temperature is lower than the first preset temperature and higher than the second preset temperature, adjusting the opening of the auxiliary electronic expansion valve according to the operating frequency of the compressor;

[0092] Step S340: When the outdoor ambient temperature is lower than the second preset temperature, close the auxiliary electronic expansion valve.

[0093] In one embodiment, when the heat pump system executes the cooling mode, the outdoor ambient temperature can be judged first. If the outdoor ambient temperature is greater than the first preset temperature, it indicates that it is an extremely high temperature refrigeration condition and the compressor needs to be supplemented with air. In this regard, the opening of the auxiliary electronic expansion valve can be adjusted according to the auxiliary superheat; if the outdoor ambient temperature is less than the first preset temperature and greater than the second preset temperature, it indicates a relatively high temperature refrigeration condition. The opening of the auxiliary electronic expansion valve can be appropriately adjusted according to the operating frequency of the compressor to supplement air to the compressor; if the outdoor ambient temperature is less than the second preset temperature, it indicates that it is a non-high temperature refrigeration condition and there is no need to use jet enthalpy increase. In this regard, the auxiliary electronic expansion valve can be closed.

[0094] It should be noted that the above-mentioned step S320, step S330 and step S340 may be executed separately, that is, in some cases, only one of step S320, step S330 and step S340 may be executed.

[0095] It can be understood that, regarding the above-mentioned first preset temperature and second preset temperature, their values ​​can be pre-set, and the embodiment of the present application does not specifically limit this; wherein, the first preset temperature is greater than the second preset temperature.

[0096] In one embodiment, regarding the above-mentioned step S320, it can be specifically as follows: when the outdoor ambient temperature is greater than the first preset temperature, the operating time of the compressor is obtained; when the operating time of the compressor reaches the first preset time, that is, after the heat pump system is running stably, the auxiliary electronic expansion valve is opened, and a preset number of steps are opened at intervals of a second preset time, so as to steadily increase the opening of the auxiliary electronic expansion valve; until the real-time opening of the auxiliary electronic expansion valve reaches the preset opening, the opening of the auxiliary electronic expansion valve is adjusted according to the auxiliary superheat.

[0097] It is understandable that the values ​​of the first preset duration, the second preset duration, the preset number of steps and the preset opening can be preset, and the embodiment of the present application does not specifically limit this.

[0098] It should be noted that the above-mentioned step S330 of adjusting the opening of the auxiliary circuit electronic expansion valve according to the operating frequency of the compressor may include but is not limited to: Figure 4 or Figure 5 The two implementations shown in the figure are as follows:

[0099] like Figure 4 As shown, Figure 4It is a flow chart of a control method for a heat pump system provided by another embodiment of the present application; in the cooling mode, regarding adjusting the opening of the auxiliary electronic expansion valve according to the operating frequency of the compressor in the above-mentioned step S330, it may include but is not limited to step S410 and step S420.

[0100] Step S410: when the operating frequency of the compressor rises to a first preset frequency, the auxiliary electronic expansion valve is opened for a preset number of steps at intervals of a second preset time;

[0101] Step S420: After the real-time opening of the auxiliary circuit electronic expansion valve reaches a preset opening, the opening of the auxiliary circuit electronic expansion valve is adjusted according to the auxiliary circuit superheat.

[0102] In one embodiment, when the opening of the auxiliary electronic expansion valve is adjusted according to the operating frequency of the compressor, if the operating frequency of the compressor rises to a first preset frequency, it indicates that the refrigeration demand is large at this time. In this regard, the embodiment of the present application will open the auxiliary electronic expansion valve and open the auxiliary electronic expansion valve for a preset number of steps at every second preset time interval until the real-time opening of the auxiliary electronic expansion valve reaches the preset opening, thereby steadily increasing the opening of the auxiliary electronic expansion valve; then, the opening of the auxiliary electronic expansion valve is adjusted according to the auxiliary superheat.

[0103] like Figure 5 As shown, Figure 5 It is a flow chart of a control method for a heat pump system provided by another embodiment of the present application; in cooling mode, regarding adjusting the opening of the auxiliary electronic expansion valve according to the operating frequency of the compressor in the above-mentioned step S330, it may include but is not limited to step S510 and step S520.

[0104] Step S510: when the operating frequency of the compressor drops to the second preset frequency, controlling the operating frequency of the compressor to stay at the second preset frequency for a third preset time period;

[0105] Step S520: closing the auxiliary electronic expansion valve, wherein the second preset frequency is less than the first preset frequency.

[0106] In one embodiment, when the opening of the auxiliary electronic expansion valve is adjusted according to the operating frequency of the compressor, if the operating frequency of the compressor drops to the second preset frequency, it indicates that the refrigeration demand is small at this time. In this regard, the embodiment of the present application does not need to turn on the injection enthalpy increase, so the auxiliary electronic expansion valve will be closed. Before closing the auxiliary electronic expansion valve, the operating frequency of the compressor can be controlled to stay at the second preset frequency for a third preset time, and then the auxiliary electronic expansion valve is closed.

[0107] It can be understood that, regarding the above-mentioned first preset frequency and second preset frequency, their values ​​can be preset, and the embodiment of the present application does not specifically limit this.

[0108] In addition, if Figure 6 As shown, Figure 6 It is a flow chart of a control method for a heat pump system provided by another embodiment of the present application; regarding the above-mentioned steps S320 and S420 of adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat, it may include but is not limited to steps S610 and S620.

[0109] Step S610, determining a first target superheat of the auxiliary heat exchange path according to the operating frequency of the compressor;

[0110] Step S620: adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat and the first target superheat.

[0111] In one embodiment, in the process of adjusting the opening of the auxiliary electronic expansion valve according to the auxiliary circuit superheat, specifically, the embodiment of the present application can determine the first target superheat of the heat exchange auxiliary circuit according to the operating frequency of the compressor, wherein the operating frequency of the compressor and the first target superheat are negatively correlated, that is, the higher the operating frequency of the compressor, the lower the value of the first target superheat, and the lower the operating frequency of the compressor, the higher the value of the first target superheat; then, compare the auxiliary circuit superheat and the first target superheat, if the auxiliary circuit superheat is greater than the first target superheat, and the difference between the auxiliary circuit superheat and the first target superheat is greater, then the opening of the auxiliary electronic expansion valve will be increased to a greater extent; if the auxiliary circuit superheat is less than the first target superheat, and the absolute value of the difference between the auxiliary circuit superheat and the first target superheat is greater, then the opening of the auxiliary electronic expansion valve will be reduced to a greater extent.

[0112] like Figure 7 As shown, Figure 7 It is a flow chart of a control method of a heat pump system provided by another embodiment of the present application; in the heating mode or the hot water mode, regarding the above-mentioned step S220, it may include but is not limited to step S710 and step S720.

[0113] Step S710: when the operation mode is the heating mode or the hot water mode, determine the second target superheat degree of the auxiliary heat exchange path according to the outdoor ambient temperature;

[0114] Step S720, adjusting the opening of the auxiliary circuit electronic expansion valve according to the exhaust superheat, the auxiliary circuit superheat and the second target superheat.

[0115] In one embodiment, when the heat pump system executes the heating mode or the hot water mode, the second target superheat of the heat exchange auxiliary circuit can be determined according to the outdoor ambient temperature, and then the opening of the auxiliary circuit electronic expansion valve can be adjusted according to the exhaust superheat, the auxiliary circuit superheat and the second target superheat.

[0116] In one embodiment, regarding the above-mentioned step S720, it can be specifically as follows: when the on-time of the compressor reaches a first preset time or the end time of the defrost mode reaches a first preset time, the opening of the auxiliary electronic expansion valve is opened to a preset initial opening; then, the opening of the auxiliary electronic expansion valve is adjusted according to the exhaust superheat, the auxiliary superheat and the second target superheat.

[0117] In addition, if Figure 8 As shown, Figure 8 It is a flowchart of a control method for a heat pump system provided by another embodiment of the present application; regarding step S720, it may include but is not limited to step S810, step S820 or step S830.

[0118] Step S810: When the exhaust gas superheat is greater than the first preset superheat, adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat and the second target superheat;

[0119] Step S820: When the exhaust gas superheat is less than the first preset superheat and greater than the second preset superheat, the opening of the auxiliary electronic expansion valve is adjusted to the minimum allowable opening;

[0120] Step S830: When the exhaust gas superheat is less than the second preset superheat, close the auxiliary circuit electronic expansion valve.

[0121] In one embodiment, regarding step S720, the numerical value of the exhaust superheat can be determined first. If the exhaust superheat is greater than the first preset superheat, it indicates that this is an extremely low temperature heating condition and the heating demand is extremely high. In this case, the auxiliary electronic expansion valve needs to be opened and the opening of the auxiliary electronic expansion valve is adjusted according to the auxiliary superheat and the second target superheat. If the exhaust superheat is less than the first preset superheat and greater than the second preset superheat, it indicates that this is a relatively low temperature heating condition and the heating demand is high. At this time, the auxiliary electronic expansion valve can be opened with the minimum allowable opening. If the exhaust superheat is less than the second preset superheat, it indicates that this is a non-low temperature heating condition and the heating demand is average. At this time, the auxiliary electronic expansion valve can be closed.

[0122] It can be understood that, regarding the above-mentioned first preset superheat, second preset superheat and third preset superheat, their values ​​can be preset, and the embodiments of the present application do not specifically limit this.

[0123] In addition, if Fig. 9 As shown, Fig. 9 It is a flow chart of a control method of a heat pump system provided by another embodiment of the present application; the control method of the heat pump system may also include but is not limited to step S910 and step S920.

[0124] Step S910: In the case of hot water making mode, obtaining the outlet water temperature of the heat pump;

[0125] Step S920: Correct the maximum allowable opening of the auxiliary circuit electronic expansion valve according to the outlet water temperature of the heat pump.

[0126] In addition, if Fig.10 As shown, Fig.10 It is a flowchart of a control method of a heat pump system provided by another embodiment of the present application; regarding the above-mentioned step S920, it may include but is not limited to step S1010 or step S1020.

[0127] Step S1010: when the outlet water temperature of the heat pump is greater than the preset outlet water temperature, the maximum allowable opening of the auxiliary circuit electronic expansion valve is corrected to a first opening;

[0128] Step S1020: When the outlet water temperature of the heat pump is lower than the preset outlet water temperature, the maximum allowable opening of the auxiliary electronic expansion valve is corrected to a second opening, wherein the second opening is lower than the first opening.

[0129] In one embodiment, in the hot water making mode, the maximum allowable opening of the auxiliary electronic expansion valve can be corrected according to the heat pump outlet water temperature. If the heat pump outlet water temperature is greater than the preset outlet water temperature, the maximum allowable opening of the auxiliary electronic expansion valve is increased; if the heat pump outlet water temperature is lower than the preset outlet water temperature, the maximum allowable opening of the auxiliary electronic expansion valve is reduced.

[0130] Based on the control methods of the heat pump system of the above-mentioned various embodiments, overall embodiments of the control methods of the heat pump system of the present application are respectively proposed below.

[0131] In one embodiment, first, some parameters are defined as follows: T6A is the refrigerant inlet temperature of the heat exchange auxiliary circuit of the plate heat exchanger; T6B is the refrigerant outlet temperature of the heat exchange auxiliary circuit of the plate heat exchanger; Tcsh is the auxiliary circuit superheat of the plate heat exchanger, Tcsh = T6B-T6A; EXVC is the jet enthalpy electronic expansion valve, that is, the auxiliary circuit electronic expansion valve mentioned above; Two is the heat pump outlet water temperature; SV5 is the multifunctional solenoid valve, that is, the switch valve mentioned above; T DSH is the exhaust superheat; T4 is the outdoor ambient temperature.

[0132] The control logic of the auxiliary electronic expansion valve EXVC in cooling mode is as follows:

[0133] After the variable frequency compressor is turned on, the following is used to determine whether EXVC can be turned on:

[0134] (1) After the compressor is running, first Fig.11 The control logic shown in the figure determines whether to open the EXVC valve according to the ambient temperature T4:

[0135] Solution 1: The compressor is turned on directly after running for 4 minutes, and EXVC is turned on for 8 steps every 2 minutes. After EXVC reaches 40 steps, it is automatically adjusted according to the auxiliary circuit superheat.

[0136] Option 2: If Fig.12 As shown, it is turned on and off according to the operating frequency of the compressor.

[0137] Among them, for the opening of EXVC in scheme 2: when the frequency rises to the 70hz platform, EXVC opens 8 steps every 2 minutes, and automatically adjusts according to the inlet and outlet superheat after EXVC reaches 40 steps. For the closing of EXVC in scheme 2: when the frequency drops to 58hz, it needs to stay at 58HZ for 1 minute (directly drop to the frequency limit when the frequency is limited), and then close EXVC.

[0138] Solution 2: Turn off EXVC.

[0139] The EXVC control scheme needs to be switched during operation:

[0140] Turn on EXVC: EXVC turns on 8 steps every 2 minutes.

[0141] Close EXVC: adjust EXVB to the initial opening, and then close EXVC.

[0142] (2) The automatic regulation of superheat in the auxiliary circuit of the plate heat exchanger can be as follows: Fig.13 As shown: In addition, the first target superheat D1 value of the plate heat exchanger can be selected according to the operating frequency of the compressor as shown in Table 1.

[0143]

[0144] Table 1

[0145] Control Description:

[0146] a) When EXVC reaches the opening condition, EXVC is opened first, and then SV5 is closed; when EXVC reaches the closing condition, SV5 is opened first, and then EXVC is closed;

[0147] b) In general, when EXVC is closed, SV5 must be opened, except in special cases such as extremely low superheat.

[0148] c) The adjustment cycle is 120s;

[0149] d) The minimum opening limit of EXVC is 40P.

[0150] The control logic of the auxiliary electronic expansion valve EXVC in heating / hot water mode is as follows:

[0151] 4 minutes after the variable frequency compressor is turned on or 4 minutes after defrosting, it is first opened to the initial opening of 96P based on the following judgment, and automatically adjusted according to the auxiliary circuit superheat of the plate heat exchanger.

[0152] (1) The control principle of the auxiliary superheat Tcsh of the plate heat exchanger can be as follows Fig.14 In addition, the principle of selecting the second target superheat D2 value of the plate heat exchanger according to the ambient temperature T4 can be shown in Table 2.

[0153]

[0154] Table 2

[0155] Control Description:

[0156] a) When EXVC reaches the opening condition, EXVC is opened first, and then SV5 is closed; when EXVC reaches the closing condition, SV5 is opened first, and then EXVC is closed;

[0157] b) In general, when EXVC is closed, SV5 must be opened, except in special cases such as extremely low superheat.

[0158] c) When the condition of Tcsh≤1℃ is met and lasts for 30 seconds, it returns directly to the initial opening.

[0159] d) When the condition of 1℃<Tcsh≤2℃ is met, the EXVC valve (referred to as C valve) is adjusted every 30 seconds.

[0160] e) When the condition of Tcsh≥D2+15 is met, the EXVC valve is adjusted every 60 seconds.

[0161] f) When the condition of 2℃<Tcsh<D2+15 is met, the EXVC valve is adjusted every 120 seconds.

[0162] g) The minimum opening limit of EXVC is 40P.

[0163] h) When Two≤40℃, EXVC can only open the valve by a maximum of 8P each time.

[0164] (2) After the EXVC is turned on at startup, if the exhaust superheat is insufficient, the EXVC will be turned off. The control rule can be as follows: Fig.15 shown.

[0165] Among them, a) do not judge for 10 minutes after starting up, and start judging after 10 minutes.

[0166] b) When descending to the minimum opening of the EXVC valve, the condition needs to be met for 2 minutes before execution.

[0167] c) When descending into the EXVC valve closure, the condition needs to be met for 2 minutes before execution.

[0168] d) When rising to the minimum opening of the EXVC valve, the conditions need to be met and executed for 5 minutes.

[0169] e) When rising and entering the free adjustment of the EXVC valve, the condition needs to be met and executed for 5 minutes before returning to control (1).

[0170] f) The minimum opening limit of EXVC is 40P.

[0171] (3) During heating, the control rule for limiting the maximum opening of the EXVC valve can be as follows: Fig.16 shown.

[0172] Based on the control methods of the heat pump system of the above-mentioned various embodiments, various embodiments of the controller, heat pump system, computer-readable storage medium and computer program product of the present application are respectively proposed below.

[0173] like Fig.17 As shown, Fig.17 900 is a schematic diagram of a controller for executing a control method for a heat pump system provided by an embodiment of the present application. The controller 900 implemented in the present application includes: a processor 910, a memory 920, and a computer program stored in the memory 920 and executable on the processor 910, wherein: Fig.17 In the figure, a processor 910 and a memory 920 are taken as an example.

[0174] The processor 910 and the memory 920 may be connected via a bus or other means. Fig.17 The example of connecting through bus is taken in the following.

[0175] The memory 920, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory 920 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one disk storage device, a flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 920 may optionally include a memory 920 remotely arranged relative to the processor 910, and these remote memories 920 may be connected to the controller 900 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0176] Those skilled in the art will understand that Fig.17 The device structure shown in the figure does not constitute a limitation on the controller 900, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0177] exist Fig.17In the controller 900 shown, the processor 910 can be used to call the control program stored in the memory 920, so as to implement the control method of the heat pump system described above. Specifically, the non-transient software program and instructions required to implement the control method of the heat pump system of the above embodiment are stored in the memory 920, and when executed by the processor 910, the control method of the heat pump system of the above embodiment is executed.

[0178] It is worth noting that since the controller 900 of the embodiment of the present application can execute the control method of the heat pump system of any of the above-mentioned embodiments, the specific implementation manner and technical effects of the controller 900 of the embodiment of the present application can refer to the specific implementation manner and technical effects of the control method of the heat pump system of any of the above-mentioned embodiments.

[0179] In addition, an embodiment of the present application further provides a heat pump system, which includes the controller of the above embodiment.

[0180] It is worth noting that since the heat pump system of the embodiment of the present application includes the controller of the above-mentioned embodiment, and the controller of the above-mentioned embodiment is capable of executing the control method of the heat pump system of any of the above-mentioned embodiments, the specific implementation manner and technical effects of the heat pump system of the embodiment of the present application can refer to the specific implementation manner and technical effects of the control method of the heat pump system of any of the above-mentioned embodiments.

[0181] In addition, an embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to execute the control method of the heat pump system described above. Figures 2 to 10 The method steps in .

[0182] It is worth noting that since the computer-readable storage medium of the embodiment of the present application can execute the control method of the heat pump system of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the computer-readable storage medium of the embodiment of the present application can refer to the specific implementation methods and technical effects of the control method of the heat pump system of any of the above-mentioned embodiments.

[0183] In addition, an embodiment of the present application further provides a computer program product, including a computer program or a computer instruction, the computer program or the computer instruction is stored in a computer-readable storage medium, the processor of the computer device reads the computer program or the computer instruction from the computer-readable storage medium, and the processor executes the computer program or the computer instruction, so that the computer device executes the control method of the heat pump system described above. Figures 2 to 10 The method steps in .

[0184] It is worth noting that since the computer program product of the embodiments of the present application can execute the control method of the heat pump system of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the computer program product of the embodiments of the present application can refer to the specific implementation methods and technical effects of the control method of the heat pump system of any of the above-mentioned embodiments.

[0185] It will be appreciated by those skilled in the art that all or some of the steps and systems in the disclosed method above may be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that may be used to store desired information and may be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically include computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0186] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0187] In several embodiments provided in the present application, it should be understood that the disclosed systems, apparatuses and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of apparatuses or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0188] It should also be understood that the various implementations provided in the embodiments of the present application can be combined arbitrarily to achieve different technical effects.

[0189] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent modifications or substitutions under the shared conditions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A control method for a heat pump system, characterized in that: The heat pump system comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger and a plate heat exchanger, wherein the plate heat exchanger is provided with a main heat exchange path and an auxiliary heat exchange path, wherein a refrigerant circulation loop is formed between the compressor, the outdoor heat exchanger, the indoor heat exchanger and the main heat exchange path, wherein one end of the auxiliary heat exchange path is connected to the main heat exchange path through an auxiliary path electronic expansion valve, and the other end is connected to an enthalpy increase port of the compressor; the method comprises: Acquiring the operating mode of the heat pump system, the outdoor ambient temperature, the auxiliary circuit superheat of the auxiliary heat exchange circuit, and the operating parameters of the compressor; The opening degree of the auxiliary circuit electronic expansion valve is controlled according to the operation mode, the outdoor ambient temperature, the auxiliary circuit superheat and the operation parameters.

2. The method according to claim 1, characterized in that The operating parameters include the operating frequency of the compressor; and controlling the opening of the auxiliary circuit electronic expansion valve according to the operating mode, the outdoor ambient temperature, the auxiliary circuit superheat and the operating parameters includes: When the operating mode is a cooling mode, determining a temperature interval within which the outdoor ambient temperature falls; When the outdoor ambient temperature is greater than a first preset temperature, adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat; When the outdoor ambient temperature is lower than a first preset temperature and higher than a second preset temperature, adjusting the opening of the auxiliary electronic expansion valve according to the operating frequency of the compressor; When the outdoor environment temperature is lower than a second preset temperature, the auxiliary circuit electronic expansion valve is closed.

3. The method according to claim 2, characterized in that Before adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat, the method further includes: When the operation time of the compressor reaches a first preset time, the auxiliary circuit electronic expansion valve is opened, and a preset number of steps are opened at intervals of a second preset time; After the real-time opening of the auxiliary circuit electronic expansion valve reaches a preset opening, the opening of the auxiliary circuit electronic expansion valve is adjusted according to the auxiliary circuit superheat.

4. The method according to claim 2, characterized in that: The adjusting the opening of the auxiliary electronic expansion valve according to the operating frequency of the compressor includes one of the following: When the operating frequency of the compressor rises to a first preset frequency, the auxiliary circuit electronic expansion valve is opened for a preset number of steps at intervals of a second preset time, until the real-time opening of the auxiliary circuit electronic expansion valve reaches a preset opening, and then the opening of the auxiliary circuit electronic expansion valve is adjusted according to the auxiliary circuit superheat; When the operating frequency of the compressor drops to a second preset frequency, the operating frequency of the compressor is controlled to stay at the second preset frequency for a third preset time, and then the auxiliary electronic expansion valve is closed, wherein the second preset frequency is less than the first preset frequency.

5. The method according to any one of claims 2 to 4, characterized in that The step of adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat comprises: Determining a first target superheat of the heat exchange auxiliary circuit according to the operating frequency of the compressor; The opening degree of the auxiliary circuit electronic expansion valve is adjusted according to the auxiliary circuit superheat and the first target superheat.

6. The method according to claim 1, characterized in that The operating parameters include the exhaust gas superheat of the compressor; The controlling the opening of the auxiliary circuit electronic expansion valve according to the operation mode, the outdoor ambient temperature, the auxiliary circuit superheat and the operation parameter comprises: When the operation mode is a heating mode or a hot water mode, determining a second target superheat degree of the heat exchange auxiliary path according to the outdoor ambient temperature; The opening degree of the auxiliary circuit electronic expansion valve is adjusted according to the exhaust gas superheat, the auxiliary circuit superheat and the second target superheat.

7. The method according to claim 6, characterized in that Before adjusting the opening of the auxiliary circuit electronic expansion valve according to the exhaust superheat, the auxiliary circuit superheat and the second target superheat, the method further includes: When the start time of the compressor reaches a first preset time or the end time of the defrost mode reaches a first preset time, the opening of the auxiliary circuit electronic expansion valve is opened to a preset initial opening.

8. The method according to claim 6, characterized in that The adjusting the opening of the auxiliary circuit electronic expansion valve according to the exhaust superheat, the auxiliary circuit superheat and the second target superheat comprises one of the following: When the exhaust gas superheat is greater than a first preset superheat, adjusting the opening of the auxiliary circuit electronic expansion valve according to the auxiliary circuit superheat and the second target superheat; When the exhaust gas superheat is less than the first preset superheat and greater than the second preset superheat, adjusting the opening of the auxiliary circuit electronic expansion valve to the minimum allowable opening; When the exhaust gas superheat is less than the second preset superheat, the auxiliary circuit electronic expansion valve is closed.

9. The method according to claim 6, characterized in that The method further comprises: In the case of hot water making mode, obtain the heat pump outlet water temperature; The maximum allowable opening of the auxiliary circuit electronic expansion valve is corrected according to the outlet water temperature of the heat pump.

10. The method according to claim 9, characterized in that Correcting the maximum allowable opening of the auxiliary electronic expansion valve according to the outlet water temperature of the heat pump includes one of the following: When the outlet water temperature of the heat pump is greater than the preset outlet water temperature, the maximum allowable opening of the auxiliary circuit electronic expansion valve is corrected to a first opening; When the outlet water temperature of the heat pump is lower than the preset outlet water temperature, the maximum allowable opening of the auxiliary electronic expansion valve is corrected to a second opening, wherein the second opening is lower than the first opening.

11. A controller, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the control method for a heat pump system according to any one of claims 1 to 10 when executing the computer program.

12. A heat pump system, characterized in that: Comprising a controller as claimed in claim 11.

13. A computer-readable storage medium, characterized in that: Computer executable instructions are stored, and the computer executable instructions are used to execute the control method of the heat pump system according to any one of claims 1 to 10.

14. A computer program product comprising a computer program or computer instructions, characterized in that The computer program or the computer instructions are stored in a computer-readable storage medium, a processor of a computer device reads the computer program or the computer instructions from the computer-readable storage medium, and the processor executes the computer program or the computer instructions, so that the computer device executes the control method of the heat pump system as described in any one of claims 1 to 10.

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