Heat pump control method and system, heat pump equipment and storage medium

Abstract

The invention relates to the technical field of heat pump control, and discloses a heat pump control method and system, heat pump equipment and a storage medium. The heat pump control method comprises the steps that when a heat pump operates initially, first real-time temperature data is obtained; the initial operation mode of the heat pump is controlled based on the first temperature difference value of the photovoltaic panel temperature and the environment temperature, and the operation mode of the heat pump comprises an air source heat pump operation mode and a photovoltaic power supply operation mode; after the heat pump operates in the initial operation mode for a preset time, second real-time temperature data are obtained; and whether the heat pump is controlled to switch the initial operation mode or not is determined based on the second real-time temperature data. According to the heat pump control method, intelligent switching of the heat pump operation modes in the whole process from preliminary decision making to feedback correction is achieved, the photovoltaic power generation utilization rate is effectively increased, and good energy-saving benefits and application prospects are achieved.

Description

Technical Field

[0001] This application relates to the field of heat pump technology, and in particular to a heat pump control method, system, heat pump equipment, and storage medium. Background Technology

[0002] With the escalating energy crisis and increasing environmental protection requirements, heat pump technology has been widely adopted due to its high efficiency and energy saving. However, traditional air source heat pumps suffer from problems such as evaporator frosting and efficiency reduction in low-temperature and high-humidity environments. Solar energy, as a clean and free energy source, is being explored for combination with heat pumps to form photovoltaic heat pump systems. However, current photovoltaic / air source dual-source heat pump systems typically have the following problems: simple mode switching strategies that cannot adapt to dynamic changes in solar energy conditions (such as cloud cover) and heat load during operation, potentially leading to prolonged operation in inefficient modes; and a lack of dynamic benchmarks, as the judgment for switching from photovoltaic power supply mode to air source heat pump mode lacks a dynamic and accurate reference benchmark, resulting in inaccurate switching timing—either switching too early and failing to fully utilize solar energy, or switching too late and causing low system efficiency. Summary of the Invention

[0003] In view of this, embodiments of this application provide a heat pump control method, system, heat pump equipment, and storage medium, which can effectively solve problems such as inaccurate switching of heat pump operating modes and untimely switching.

[0004] In a first aspect, embodiments of this application provide a heat pump control method, including: During the initial operation of the heat pump, first real-time temperature data is acquired, including the photovoltaic panel temperature and the ambient temperature. The initial operating mode of the heat pump is controlled based on a first temperature difference between the photovoltaic panel temperature and the ambient temperature. The operating modes of the heat pump include an air source heat pump operating mode and a photovoltaic power supply operating mode. After the heat pump has been running in the initial operating mode for a preset time, second real-time temperature data is acquired. The second real-time temperature data includes the first real-time temperature data, the photovoltaic evaporation temperature, and the reference air source evaporation temperature. Based on the second real-time temperature data, determine whether to control the heat pump to switch to the initial operating mode.

[0005] In a first possible embodiment of the first aspect, controlling the initial operating mode of the heat pump based on a first temperature difference between the photovoltaic panel temperature and the ambient temperature includes: Under the condition that the first temperature difference is greater than or equal to the first preset temperature difference, the heat pump is controlled to operate in the photovoltaic power supply mode; When the first temperature difference is less than the first preset temperature difference, the heat pump is controlled to operate in the air source heat pump mode. In a second possible embodiment of the first aspect, the heat pump includes a photovoltaic solenoid valve and an air source solenoid valve, and the method further includes: When the heat pump is running in the photovoltaic power supply mode, the photovoltaic solenoid valve is controlled to close to conduct the evaporative cooling cycle path driven by the photovoltaic power source. When the heat pump is running in the air source heat pump operation mode, the air source solenoid valve is closed to open the air source evaporative cooling cycle path powered by the mains electricity.

[0006] In a third possible embodiment of the first aspect, it further includes: Determine the ambient temperature change, and under the condition that the ambient temperature change is greater than or equal to the second preset temperature difference, calibrate the reference air source evaporation temperature to obtain the calibrated reference air source evaporation temperature.

[0007] In a fourth possible embodiment of the first aspect, calibrating the evaporation temperature of the reference air source includes: After controlling the heat pump to operate in the air source heat pump mode, record the current air source evaporation temperature; The current air source evaporation temperature is used as the reference air source evaporation temperature.

[0008] In a fifth possible embodiment of the first aspect, determining whether to control the heat pump to switch the initial operating mode based on the second real-time temperature data includes: When the heat pump is running in the photovoltaic power supply mode, a second temperature difference between the photovoltaic evaporation temperature and the reference air source evaporation temperature is calculated. When the second temperature difference is less than the third preset temperature difference, the heat pump is controlled to switch to the air source heat pump operation mode. Under the condition that the second temperature difference is greater than or equal to the third preset temperature difference, the heat pump continues to be controlled to operate in the photovoltaic power supply mode.

[0009] In a sixth possible embodiment of the first aspect, determining whether to control the heat pump to switch the initial operating mode based on the second real-time temperature data further includes: When the heat pump is operating in the air source heat pump mode and the first temperature difference is greater than or equal to the first preset temperature difference, the heat pump is controlled to switch to the photovoltaic power supply mode. If the temperature difference is less than the first preset temperature difference, the heat pump continues to operate in the air source heat pump mode.

[0010] Secondly, embodiments of this application provide a heat pump control system, including: The first data acquisition module is used to acquire first real-time temperature data during the initial operation of the heat pump. The first real-time temperature data includes the photovoltaic panel temperature and the ambient temperature. An initial control module is used to control the initial operating mode of the heat pump based on a first temperature difference between the photovoltaic panel temperature and the ambient temperature. The operating modes of the heat pump include an air source heat pump operating mode and a photovoltaic power supply operating mode. The second data acquisition module is further configured to acquire second real-time temperature data after the heat pump has been running in the initial operating mode for a preset time. The second real-time temperature data includes the first real-time temperature data, the photovoltaic evaporation temperature, and the reference air source evaporation temperature. The mode switching control module is used to determine whether to control the heat pump to switch to the initial operating mode based on the second real-time temperature data.

[0011] Thirdly, embodiments of this application provide a heat pump device, including a memory and a processor. The memory stores a computer program, and the computer program executes the above-described heat pump control method when it runs on the processor.

[0012] Fourthly, embodiments of this application provide a readable storage medium storing a computer program that executes the above-described heat pump control method when run on a processor.

[0013] The embodiments of this application have the following beneficial effects: This embodiment of a heat pump control method includes: during the initial operation of the heat pump, acquiring first real-time temperature data, including the photovoltaic panel temperature and the ambient temperature; controlling the initial operating mode of the heat pump based on a first temperature difference between the photovoltaic panel temperature and the ambient temperature, the operating mode of the heat pump including an air source heat pump operating mode and a photovoltaic power supply operating mode; after the heat pump operates in the initial operating mode for a preset time, acquiring second real-time temperature data, including the first real-time temperature data, the photovoltaic evaporation temperature, and a reference air source evaporation temperature; and determining whether to control the heat pump to switch to the initial operating mode based on the second real-time temperature data. Based on the above scheme, during initial operation, the photovoltaic utilization potential is judged based on the temperature difference between the photovoltaic panel and the ambient temperature, and an air source heat pump operating mode or a photovoltaic power supply operating mode is rationally selected to avoid inefficient operation caused by blindly activating the photovoltaic mode. After the preset operating time, the second real-time temperature data is further acquired to evaluate the actual heat exchange performance and dynamically determine whether to switch the operating mode, achieving accuracy and timeliness in switching the operating mode. This closed-loop control mechanism realizes full-process optimization from initial decision-making to feedback correction, effectively improving the utilization rate of photovoltaic power generation, and has good energy-saving benefits and application prospects. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This paper shows a first flowchart of a heat pump control method according to an embodiment of the present application; Figure 2 A second flowchart of the heat pump control method according to an embodiment of this application is shown; Figure 3 A third flowchart of the heat pump control method according to an embodiment of this application is shown; Figure 4 A schematic diagram of the structure of the heat pump control system according to an embodiment of this application is shown.

[0016] Explanation of key component symbols: 200 - Heat pump control system; 210 - First data acquisition module; 220 - Initial control module; 230 - Second data acquisition module; 240 - Mode switching control module. Detailed Implementation

[0017] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0018] The components of the embodiments of this application described and illustrated in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0019] In the following text, the terms "comprising," "having," and their cognates, which may be used in various embodiments of this application, are intended only to indicate a particular feature, number, step, operation, element, component, or combination thereof, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more combinations thereof. Furthermore, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0020] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this application pertain. Terms (such as those defined in commonly used dictionaries) shall be interpreted as having the same meaning as in their contextual meaning in the relevant technical field and shall not be construed as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this application.

[0021] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] The heat pump control method will be explained below with reference to some specific embodiments.

[0023] Figure 1 A flowchart of a heat pump control method according to an embodiment of this application is shown. Exemplarily, the heat pump control method includes the following steps: S110, during the initial operation of the heat pump, acquires the first real-time temperature data, which includes the photovoltaic panel temperature and the ambient temperature.

[0024] Exemplarily, the photovoltaic panel temperature refers to the actual temperature on the surface or inside of the photovoltaic module integrated or supported by the heat pump system, and this data can be obtained in real time through the temperature sensor installed on the photovoltaic panel. The ambient temperature refers to the real-time air temperature around the heat pump unit, which is measured by the ambient temperature sensor arranged near the outdoor unit of the heat pump and avoiding direct sunlight and heat source interference.

[0025] S120, control the initial operation mode of the heat pump based on the first temperature difference between the photovoltaic panel temperature and the ambient temperature. The operation modes of the heat pump include the air source heat pump operation mode and the photovoltaic power supply operation mode.

[0026] Exemplarily, the air source heat pump operation mode is that the heat pump system absorbs the heat energy from the outside air, and completes the refrigerant cycle through the core components such as the compressor, condenser, and evaporator, so as to realize the heating or cooling of the target space (such as indoor or hot water storage tank). The photovoltaic power supply operation mode is that part or all of the operating power of the heat pump system comes from the solar photovoltaic power generation system, that is, the photovoltaic panel converts the solar radiation energy into direct current, and supplies it to the heat pump load through the inverter.

[0027] In one embodiment, as Figure 2 shown, controlling the initial operation mode of the heat pump based on the first temperature difference between the photovoltaic panel temperature and the ambient temperature specifically includes the following steps: S121, under the condition that the first temperature difference is greater than or equal to the first preset temperature difference, control the heat pump to operate in the photovoltaic power supply operation mode.

[0028] S122, under the condition that the first temperature difference is less than the first preset temperature difference, control the heat pump to operate in the air source heat pump operation mode.

[0029] In this embodiment, when the first temperature difference is greater than or equal to the first preset temperature difference, it is determined that the current photovoltaic power generation capacity meets the independent power supply demand, and the heat pump is controlled to enter the photovoltaic power supply operation mode, and the photovoltaic array directly supplies power to the heat pump. When the first temperature difference is less than the first preset temperature difference, it is determined that the current illumination condition is poor or the output capacity of the photovoltaic system is insufficient, and the heat pump is controlled to switch to the air source heat pump operation mode, and the power grid power supply is started to ensure stable startup. The adaptive energy mode selection of the heat pump system in the initial operation stage is realized, which not only improves the utilization rate of renewable energy, but also ensures the reliability and stability of system startup.

[0030] In one embodiment, the heat pump includes a photovoltaic solenoid valve and an air source solenoid valve. When the heat pump operates in the photovoltaic power supply operation mode, control the photovoltaic solenoid valve to close to conduct the evaporation refrigeration cycle path driven by the photovoltaic power supply. When the heat pump operates in the air source heat pump operation mode, control the air source solenoid valve to close to conduct the air source evaporation refrigeration cycle path powered by the mains electricity.

[0031] In this embodiment, the photovoltaic solenoid valve is the control switch for the photovoltaic power supply branch. It is installed at a specific location in the refrigerant flow path (such as before the evaporator outlet or compressor inlet). When it is determined that the current sunlight is sufficient and the photovoltaic power supply operation mode is activated, a command is issued to close the photovoltaic solenoid valve, thereby allowing the refrigerant to flow into and through the refrigeration circuit composed of the photovoltaic-powered compressor and its supporting components. The air source solenoid valve is the control switch for the main circuit of the mains power supply. It can be set on the main flow path where the AC compressor is located. When insufficient sunlight, unstable photovoltaic power generation, or low battery power is detected, it enters the air source heat pump operation mode. At this time, the air source solenoid valve closes, activating the standard air source heat pump cycle. The refrigerant flows through the grid-powered variable frequency compressor, four-way reversing valve, air-cooled heat exchanger, and other components to complete heat transfer. This path is suitable for all-weather operation, especially providing reliable protection at night, on rainy days, or under high load demand.

[0032] For example, the first preset temperature difference can be set to 10℃. When the temperature difference between the photovoltaic panel and the ambient temperature is greater than or equal to 10℃, the photovoltaic solenoid valve is energized; when the temperature difference between the photovoltaic panel and the ambient temperature is less than 10℃, the air source solenoid valve is energized.

[0033] S130: After the heat pump has been running in the initial operating mode for a preset time, the second real-time temperature data is acquired. The second real-time temperature data includes the first real-time temperature data, the photovoltaic evaporation temperature, and the reference air source evaporation temperature.

[0034] As an example, the operation mode switching judgment during heat pump operation is as follows: after a certain operation mode is selected, it must run in that mode for at least a preset time before considering the next mode switching judgment. The preset time is set within the range of 10 to 30 minutes to avoid frequent switching of operation modes, thereby improving the stability of system operation and user experience.

[0035] In one embodiment, the photovoltaic evaporation temperature is the saturation temperature value corresponding to the refrigerant pressure measured by a low-pressure pressure sensor on the evaporator side when the heat pump is operating in photovoltaic power supply mode. This value characterizes the actual evaporation conditions under the current photovoltaic path. The reference air source evaporation temperature is the saturation temperature value corresponding to the refrigerant pressure measured by a low-pressure pressure sensor on the evaporator side when the air source heat pump is operating in mode.

[0036] In one embodiment, the ambient temperature change is determined. When the ambient temperature change is greater than or equal to a second preset temperature difference, the reference air source evaporation temperature is calibrated to obtain the calibrated reference air source evaporation temperature. In this embodiment, the second preset temperature difference can be set to a range of 0~15℃, and the ambient temperature change is the difference between the real-time ambient temperature and the ambient temperature reference value. When the ambient temperature change is greater than or equal to the second preset temperature difference, the reference air source evaporation temperature is calibrated once. This ensures that the reference air source evaporation temperature always reflects the system performance under the current real-world environment, avoiding inaccurate control decisions due to changes in external temperature, thereby maintaining the accuracy of mode switching judgments and optimizing energy efficiency.

[0037] In one embodiment, after controlling the heat pump to operate in air source heat pump mode, the air source operating frequency is set to be consistent with the original photovoltaic power supply mode operating frequency, and the current air source evaporation temperature is recorded; the current air source evaporation temperature is used as the reference air source evaporation temperature. In this embodiment, whenever the ambient temperature changes by a second preset temperature difference, the system switches to air source heat pump operation mode for a period of time, such as 5 minutes, and records the current air source evaporation temperature, thus obtaining the reference air source evaporation temperature.

[0038] S140 determines whether to control the heat pump to switch to the initial operating mode based on the second real-time temperature data.

[0039] In one embodiment, such as Figure 3 As shown, determining whether to control the heat pump to switch to the initial operating mode based on the second real-time temperature data includes the following steps: S141, when the heat pump is operating in photovoltaic power supply mode, calculate the second temperature difference between the photovoltaic evaporation temperature and the reference air source evaporation temperature.

[0040] S142, under the condition that the second temperature difference is less than the third preset temperature difference, control the heat pump to switch to air source heat pump operation mode.

[0041] S143, under the condition that the second temperature difference is greater than or equal to the third preset temperature difference, the heat pump continues to be controlled to operate in photovoltaic power supply mode.

[0042] In this embodiment, the second temperature difference reflects the comparison of evaporation capacity between the photovoltaic power supply mode and the air source heat pump mode under the same environmental trends. The third preset temperature difference is set within the range of -20 to 30°C. For example, when the third preset temperature difference is set to 2 degrees Celsius, if the second temperature difference is less than the third preset temperature difference, it indicates that the current evaporation temperature of the photovoltaic path is significantly low, the heat exchange capacity is weak, and the solar energy capacity is insufficient. Therefore, switching to the air source heat pump mode is more reliable. If the second temperature difference is greater than or equal to the third preset temperature difference, it indicates that the evaporation performance of the photovoltaic path is good, and solar energy can be used efficiently for heating. In this case, there is no need to switch the operating mode. This achieves seamless switching to the air source heat pump operating mode when solar energy is insufficient, improving the accuracy and timeliness of the operating mode switching and ensuring the safety of the switching process.

[0043] S144: When the heat pump is operating in air source heat pump mode and the first temperature difference is greater than or equal to the first preset temperature difference, control the heat pump to switch to photovoltaic power supply mode.

[0044] S145, if the temperature difference is less than the first preset temperature difference, continue to control the heat pump to operate in air source heat pump mode.

[0045] In this embodiment, when the first temperature difference is greater than or equal to the first preset temperature difference, it indicates that the current sunlight is enhanced, the photovoltaic panel is heated significantly higher than the ambient temperature, and the power generation capacity is strong, meeting the basic requirements for activating the photovoltaic power supply operation mode. At this time, the photovoltaic power supply operation mode is actively switched back, prioritizing the use of solar energy for heating, achieving intelligent energy saving and improving energy utilization. When the first temperature difference is less than the first preset temperature difference, it indicates that the sunlight is still weak and the photovoltaic output is insufficient. Therefore, the air source heat pump operation mode is maintained to ensure stable operation of the heat pump.

[0046] Figure 4 A schematic diagram of a heat pump control system 200 according to an embodiment of this application is shown. Exemplarily, the heat pump control system 200 includes: The first data acquisition module 210 is used to acquire first real-time temperature data during the initial operation of the heat pump. The first real-time temperature data includes the photovoltaic panel temperature and the ambient temperature.

[0047] The initial control module 220 is used to control the initial operating mode of the heat pump based on the first temperature difference between the photovoltaic panel temperature and the ambient temperature. The operating modes of the heat pump include air source heat pump operating mode and photovoltaic power supply operating mode.

[0048] The second data acquisition module 230 is also used to acquire second real-time temperature data after the heat pump has been running in the initial operating mode for a preset time. The second real-time temperature data includes the first real-time temperature data, the photovoltaic evaporation temperature, and the reference air source evaporation temperature.

[0049] The mode switching control module 240 is used to determine whether to control the heat pump to switch to the initial operating mode based on the second real-time temperature data.

[0050] It is understood that the system in this embodiment corresponds to the heat pump control method in the above embodiments, and the options in the above embodiments are also applicable to this embodiment, so they will not be described again here.

[0051] This application also provides a heat pump device, exemplary of which includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program to enable the heat pump device to perform the functions of the aforementioned heat pump control method or the various modules in the aforementioned heat pump control system 200. The heat pump device includes, but is not limited to, composite heat pump devices such as photovoltaic air source heat pumps, photovoltaic-storage integrated heat pump systems, and photovoltaic DC heat pumps.

[0052] The processor can be an integrated circuit chip with signal processing capabilities. The processor can be a general-purpose processor, including at least one of a Central Processing Unit (CPU), Graphics Processing Unit (GPU), Network Processor (NP), Digital Signal Processor (DSP), Application-Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application.

[0053] Memory can be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and Electrically Erasable Programmable Read-Only Memory (EEPROM). Memory is used to store computer programs, and the processor can execute these programs upon receiving execution instructions.

[0054] This application also provides a computer-readable storage medium for storing a computer program used in the aforementioned heat pump device. For example, the computer-readable storage medium may include, but is not limited to, various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0055] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that, in alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0056] In addition, the functional modules or units in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0057] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a smartphone, personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0058] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A heat pump control method characterized by, The method comprises: acquiring first real-time temperature data including photovoltaic panel temperature and ambient temperature when the heat pump is initially operated; controlling initial operation mode of the heat pump based on first temperature difference value of the photovoltaic panel temperature and the ambient temperature, the operation mode of the heat pump including air source heat pump operation mode and photovoltaic power supply operation mode; acquiring second real-time temperature data including the first real-time temperature data, photovoltaic evaporation temperature and reference air source evaporation temperature after the heat pump is operated in the initial operation mode for a preset time; determining whether to control the heat pump to switch the initial operation mode based on the second real-time temperature data.

2. The heat pump control method according to claim 1, characterized by, The controlling initial operation mode of the heat pump based on first temperature difference value of the photovoltaic panel temperature and the ambient temperature comprises: controlling the heat pump to operate in the photovoltaic power supply operation mode under the condition that the first temperature difference value is greater than or equal to first preset temperature difference value; controlling the heat pump to operate in the air source heat pump operation mode under the condition that the first temperature difference value is less than the first preset temperature difference value.

3. The heat pump control method according to claim 2, characterized by, The heat pump comprises photovoltaic electromagnetic valve and air source electromagnetic valve, and the method further comprises: controlling the photovoltaic electromagnetic valve to be closed to turn on photovoltaic power driven evaporation refrigeration cycle path when the heat pump operates in the photovoltaic power supply operation mode; controlling the air source electromagnetic valve to be closed to turn on air source evaporation refrigeration cycle path powered by mains when the heat pump operates in the air source heat pump operation mode.

4. The heat pump control method according to claim 1, characterized by, Further comprising: determining environmental change temperature, and calibrating the reference air source evaporation temperature to obtain calibrated reference air source evaporation temperature under the condition that the environmental change temperature is greater than or equal to second preset temperature difference value.

5. The heat pump control method according to claim 4, characterized by, The calibrating the reference air source evaporation temperature comprises: recording current air source evaporation temperature after the heat pump is controlled to operate in the air source heat pump operation mode; taking the current air source evaporation temperature as the reference air source evaporation temperature.

6. The heat pump control method according to claim 1, characterized by, The determining whether to control the heat pump to switch the initial operation mode based on the second real-time temperature data comprises: calculating second temperature difference value of the photovoltaic evaporation temperature and the reference air source evaporation temperature when the heat pump operates in the photovoltaic power supply operation mode; controlling the heat pump to switch to the air source heat pump operation mode under the condition that the second temperature difference value is less than third preset temperature difference value; continuing to control the heat pump to operate in the photovoltaic power supply operation mode under the condition that the second temperature difference value is greater than or equal to the third preset temperature difference value.

7. The heat pump control method according to claim 1, characterized by, The determining whether to control the heat pump to switch the initial operation mode based on the second real-time temperature data further comprises: controlling the heat pump to switch to the photovoltaic power supply operation mode under the condition that the heat pump operates in the air source heat pump operation mode and the first temperature difference value is greater than or equal to first preset temperature difference value; continuing to control the heat pump to operate in the air source heat pump operation mode under the condition that the temperature difference value is less than the first preset temperature difference value.

8. A heat pump control system, characterized by, The method comprises: The first data acquisition module is configured to acquire first real-time temperature data when the heat pump is initially operated, the first real-time temperature data comprising a photovoltaic panel temperature and an ambient temperature; The initial control module is configured to control an initial operation mode of the heat pump based on a first temperature difference value of the photovoltaic panel temperature and the ambient temperature, the operation mode of the heat pump comprising an air source heat pump operation mode and a photovoltaic power supply operation mode; The second data acquisition module is further configured to acquire second real-time temperature data after the heat pump is operated in the initial operation mode for a preset time, the second real-time temperature data comprising the first real-time temperature data, a photovoltaic evaporation temperature and a reference air source evaporation temperature; The mode switching control module is configured to determine whether to control the heat pump to switch the initial operation mode based on the second real-time temperature data.

9. A heat pump apparatus, characterized by, A computer program product, comprising a memory and a processor, wherein the memory stores a computer program, and the computer program performs the heat pump control method of any one of claims 1 to 7 when running on the processor.

10. A readable storage medium, characterized by, A computer program product, comprising a memory and a processor, wherein the memory stores a computer program, and the computer program performs the heat pump control method of any one of claims 1 to 7 when running on the processor.

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