Multi-mode heat pump operation method, device and equipment and storage medium

Abstract

The invention relates to the field of heating temperature control, in particular to a multi-mode heat pump operation method, device and equipment and a storage medium. The method comprises the steps that the multi-mode heat pump is started, and the battery electric quantity of the battery, the power generation power of the photovoltaic panel and the water storage temperature of the water storage tank are monitored; a target temperature set by a user is obtained, and a set shutdown temperature is calculated based on the target temperature and the water storage temperature; setting an operation mode of the multi-mode heat pump based on the battery electric quantity, the generated power and the water storage temperature; and the heat pump is controlled to adjust the operation power based on the corresponding operation mode. The specific operation mode is automatically selected based on the obtained target temperature set by the user and the state corresponding to the heat pump, and operation power adjusting modes in different operation modes are provided.

Description

Technical Field

[0001] The present invention relates to the field of heating temperature control, and in particular to a multi-mode heat pump operation method, device, equipment and storage medium. Background Art

[0002] The electric water heaters currently used in the market, in actual operation, want to output water that reaches the target temperature. Generally, the inverter is used to determine the photovoltaic power to control the operating frequency of the heat pump. However, this solution usually sacrifices user comfort and is mainly based on economic implementation. It does not take into account that in extremely harsh environments, the heat pump cannot operate properly and causes the unit to be at risk of freezing. In actual application, it takes a long time to start when the user needs heating. Other variables are not taken into account to select different operating modes to control the operating frequency of the heat pump, so there is no actual energy saving effect. Therefore, how to adjust the water temperature of the heat pump through multiple modes has become a problem that needs to be solved urgently. Summary of the invention

[0003] The main purpose of the present invention is to solve the technical problems of single heat pump operation frequency and fixed adjustment mode in the existing multi-mode heat pump operation method.

[0004] A first aspect of the present invention provides a multi-mode heat pump operation method, which is applied to a multi-mode heat pump, wherein the multi-mode heat pump includes a battery, a photovoltaic panel, a water storage tank and a heat pump, and the multi-mode heat pump operation method includes: starting the multi-mode heat pump and monitoring the battery power of the battery, the power generation power of the photovoltaic panel and the water storage temperature of the water storage tank; obtaining a target temperature set by a user, and calculating and setting a shutdown temperature based on the target temperature and the water storage temperature; setting the operating mode of the multi-mode heat pump based on the battery power, the power generation power and the water storage temperature; and controlling the heat pump to adjust the operating power based on the corresponding operating mode.

[0005] Optionally, in a first implementation of the first aspect of the present invention, the operating mode includes a sleep mode, and after starting the multi-mode heat pump and monitoring the battery power of the battery, the power generation power of the photovoltaic panel and the water storage temperature of the water tank, it also includes: calculating the blocking time of the multi-mode heat pump; judging whether the ambient temperature meets the preset winter protection condition; if so, starting the heat pump in the multi-mode heat pump, and adjusting the water storage temperature to the protection temperature through the heat pump; when the blocking time reaches the threshold, exiting the sleep mode and reducing the sleep opportunity by one.

[0006] Optionally, in a second implementation of the first aspect of the present invention, the operating mode also includes a first mode, a second mode, a third mode, a fourth mode and a standard mode, the battery charge includes a high charge, and the power generation includes a high power generation; the operating mode of the multi-mode heat pump is set based on the battery charge, the power generation and the water storage temperature, including: judging whether the battery charge is a high charge and whether the power generation is a high power generation; if so, setting the operating mode of the multi-mode heat pump to the fourth mode; if not, determining the operating mode of the multi-mode heat pump between the first mode, the second mode, the third mode and the standard mode based on the battery charge, the power generation and the water storage temperature.

[0007] Optionally, in a third implementation of the first aspect of the present invention, determining the operating mode of the multi-mode heat pump between the first mode, the second mode, the third mode and the standard mode based on the battery power, the generated power and the water storage temperature includes: judging whether the water storage temperature is an extremely low water temperature; if so, setting the operating mode of the multi-mode heat pump to the standard mode; if not, determining the operating mode of the multi-mode heat pump between the first mode, the second mode and the third mode based on the battery power, the generated power and the water storage temperature.

[0008] Optionally, in a fourth implementation of the first aspect of the present invention, the power generation power also includes medium power generation power and low power generation power; determining the operation mode of the multi-mode heat pump between the first mode, the second mode, and the third mode based on the battery power, the power generation power and the water storage temperature includes: judging whether the power generation power is low power generation power; if so, setting the operation mode of the multi-mode heat pump to the first mode; if not, determining the operation mode of the multi-mode heat pump between the second mode and the third mode based on the battery power, the power generation power and the water storage temperature.

[0009] Optionally, in a fifth implementation of the first aspect of the present invention, determining the operating mode of the multi-mode heat pump between the second mode and the third mode based on the battery power, the power generation power and the water storage temperature includes: judging whether the battery power is high; if so, setting the operating mode of the multi-mode heat pump to the third mode; if not, setting the operating mode of the multi-mode heat pump to the second mode when the power generation power is medium power, and setting the operating mode of the multi-mode heat pump to the third mode when the power generation power is high power.

[0010] Optionally, in a sixth implementation of the first aspect of the present invention, after controlling the heat pump to adjust the operating power based on the corresponding operating mode, it also includes: monitoring the water storage temperature, and when the water storage temperature is lower than the difference between the target temperature and the return temperature, controlling the multi-mode heat pump to adjust the water storage temperature based on the shutdown temperature; when the water storage temperature reaches the shutdown temperature, ending the temperature adjustment work.

[0011] A second aspect of the present invention provides a multi-mode heat pump operating device, which is applied to a multi-mode heat pump, wherein the multi-mode heat pump includes a battery, a photovoltaic panel, a water storage tank and a heat pump, and the multi-mode heat pump operating device includes: a starting module, which is used to start the multi-mode heat pump and monitor the battery power of the battery, the power generation power of the photovoltaic panel and the water storage temperature of the water storage tank; a target temperature acquisition module, which is used to obtain the target temperature set by the user, and calculate and set the shutdown temperature based on the target temperature and the water storage temperature; an operation mode setting module, which is used to set the operation mode of the multi-mode heat pump based on the battery power, the power generation power and the water storage temperature; a temperature adjustment module, which is used to control the heat pump to adjust the operation power based on the corresponding operation mode.

[0012] Optionally, in a first implementation of the second aspect of the present invention, the multi-mode heat pump operating device also includes a sleep module, which is specifically used to: calculate the blocking time of the multi-mode heat pump; determine whether the ambient temperature meets the preset winter protection condition; if so, start the heat pump in the multi-mode heat pump, and adjust the water storage temperature to the protection temperature through the heat pump; when the blocking time reaches a threshold, exit the sleep mode and reduce the sleep opportunity by one.

[0013] Optionally, in a second implementation of the second aspect of the present invention, the operating mode setting module is specifically used for: a power and power judgment submodule, which judges whether the battery power is high and whether the power generation power is high; a first mode setting submodule, which sets the operating mode of the multi-mode heat pump to the fourth mode if yes; and a second mode setting submodule, which determines the operating mode of the multi-mode heat pump between the first mode, the second mode, the third mode and the standard mode based on the battery power, the power generation power and the water storage temperature if no.

[0014] Optionally, in a third implementation of the second aspect of the present invention, the second mode setting submodule is specifically used for: a water storage temperature judgment unit, to judge whether the water storage temperature is an extremely low water temperature; a first mode setting unit, if so, the operation mode of the multi-mode heat pump is set to a standard mode; a second mode setting unit, if not, to determine the operation mode of the multi-mode heat pump between the first mode, the second mode and the third mode based on the battery power, the power generation power and the water storage temperature.

[0015] Optionally, in a fourth implementation of the second aspect of the present invention, the second mode setting unit is specifically used for: a power generation judgment subunit, judging whether the power generation is low power generation; a first mode setting subunit, if so, setting the operation mode of the multi-mode heat pump to the first mode; a second mode setting subunit, if not, determining the operation mode of the multi-mode heat pump between the second mode and the third mode based on the battery power, the power generation and the water storage temperature.

[0016] Optionally, in a fifth implementation of the second aspect of the present invention, the second mode setting subunit is specifically used to: determine whether the battery power is high; if so, the operation mode of the multi-mode heat pump is set to the third mode; if not, when the power generation power is medium power generation power, the operation mode of the multi-mode heat pump is set to the second mode, and when the power generation power is high power generation power, the operation mode of the multi-mode heat pump is set to the third mode.

[0017] Optionally, in a sixth implementation of the second aspect of the present invention, the multi-mode heat pump operating device also includes a reheating module, which is specifically used to: monitor the water storage temperature, and when the water storage temperature is lower than the difference between the target temperature and the return temperature, control the multi-mode heat pump to adjust the water storage temperature based on the shutdown temperature; when the water storage temperature reaches the shutdown temperature, end the temperature adjustment work.

[0018] A third aspect of the present invention provides a multi-mode heat pump operating device, comprising: a memory and at least one processor, wherein requests are stored in the memory, and the memory and the at least one processor are interconnected via lines; the at least one processor calls the request in the memory so that the multi-mode heat pump operating device executes the steps of the above-mentioned multi-mode heat pump operating method.

[0019] A fourth aspect of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a request, which, when executed on a computer, causes the computer to execute the steps of the above-mentioned multi-mode heat pump operation method.

[0020] In the technical solution of the present invention, the multi-mode heat pump is started, and the battery power of the battery, the power generation of the photovoltaic panel and the water storage temperature of the water storage tank are monitored; the target temperature set by the user is obtained, and the shutdown temperature is calculated and set based on the target temperature and the water storage temperature; the operation mode of the multi-mode heat pump is set based on the battery power, the power generation and the water storage temperature; and the heat pump is controlled to adjust the operation power based on the corresponding operation mode. This application automatically selects a specific operation mode based on obtaining the target temperature set by the user and the corresponding state of the heat pump, and provides an operation power adjustment method under different operation modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a first embodiment of a multi-mode heat pump operation method in an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of a second embodiment of the multi-mode heat pump operation method in an embodiment of the present invention;

[0023] Figure 3 It is a schematic diagram of a third embodiment of the multi-mode heat pump operation method in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of an embodiment of a multi-mode heat pump operating device in an embodiment of the present invention;

[0025] Figure 5 It is a schematic diagram of another embodiment of the multi-mode heat pump operating device in an embodiment of the present invention;

[0026] Figure 6 It is a schematic diagram of an embodiment of a multi-mode heat pump operating device in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In the technical solution of the present invention, the multi-mode heat pump is started, and the battery power of the battery, the power generation of the photovoltaic panel and the water storage temperature of the water storage tank are monitored; the target temperature set by the user is obtained, and the shutdown temperature is calculated and set based on the target temperature and the water storage temperature; the operation mode of the multi-mode heat pump is set based on the battery power, the power generation and the water storage temperature; and the heat pump is controlled to adjust the operation power based on the corresponding operation mode. This application automatically selects a specific operation mode based on obtaining the target temperature set by the user and the corresponding state of the heat pump, and provides an operation power adjustment method under different operation modes.

[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar components, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] For ease of understanding, the specific process of the embodiment of the present invention is described below. Figure 1 The first embodiment of the multi-mode heat pump operation method in the embodiment of the present invention includes:

[0030] 101. Start the multi-mode heat pump and monitor the battery power of the battery, the power generation of the photovoltaic panel, and the water temperature of the water storage tank;

[0031] In this embodiment, when the multi-mode heat pump is started, it preferentially enters the sleep mode. In the sleep mode, all loads are turned off, that is, the heat pump stops working, which is equivalent to a constant temperature shutdown state.

[0032] Specifically, the constant temperature shutdown state is that when the multi-mode heat pump is operating in different operating modes, after the water storage temperature is heated to the shutdown temperature, the heat pump stops running, automatically enters and returns to the sleep mode, and when the water storage temperature drops to the difference between the target temperature and the return temperature, it re-enters the operating mode before the sleep mode and operates.

[0033] 102. Obtain the target temperature set by the user, and calculate and set the shutdown temperature based on the target temperature and the water storage temperature;

[0034] In this embodiment, the target temperature set by the user covers multiple intervals such as cold water and hot water. The target temperature is automatically memorized and updated after the user sets it. When the multi-mode heat pump is started in a new cycle, if the user does not adjust the target temperature, the target temperature set by the user in the previous cycle will be used.

[0035] 103. Setting the operation mode of the multi-mode heat pump based on the battery power, power generation and water storage temperature;

[0036] In this embodiment, it is necessary to obtain control instructions for different operating modes selected by the user, and operate the multi-mode heat pump based on the operating mode and water storage temperature selected by the user, and adjust the water storage temperature through the multi-mode heat pump application operating mode.

[0037] Specifically, the regulation methods include heat storage and cold storage.

[0038] Furthermore, after starting the multi-mode heat pump and controlling the started multi-mode heat pump to execute the sleep mode, it also includes obtaining the ambient temperature, and judging and determining the operation mode of the multi-mode heat pump based on the ambient temperature and the target temperature.

[0039] Specifically, if the user has not set or updated the target temperature, the target temperature of the previous cycle will be applied.

[0040] In practical applications, if the ambient temperature is lower than the target temperature, the regulation method is heat storage; if the ambient temperature is higher than the target temperature, the regulation method is cold storage.

[0041] 104. Control the heat pump to adjust the operating power based on the corresponding operating mode.

[0042] In this embodiment, it is necessary to obtain control instructions for different operating modes selected by the user, and operate the multi-mode heat pump based on the operating mode and target temperature selected by the user, and adjust the operating power through the corresponding operating mode of the multi-mode heat pump application.

[0043] Specifically, based on different operating modes, the changing conditions of the operating frequency of the heat pump during the heating and cooling processes are set, so that the heat pump can flexibly adjust different operating frequencies based on different operating modes, thereby achieving energy-saving effects.

[0044] In this embodiment, the multi-mode heat pump is started, and the battery power of the battery, the power generation of the photovoltaic panel, and the water storage temperature of the water storage tank are monitored; the target temperature set by the user is obtained, and the shutdown temperature is calculated and set based on the target temperature and the water storage temperature; the operation mode of the multi-mode heat pump is set based on the battery power, the power generation, and the water storage temperature; and the heat pump is controlled to adjust the operation power based on the corresponding operation mode. This application automatically selects a specific operation mode based on obtaining the target temperature set by the user and the corresponding state of the heat pump, and provides an operation power adjustment method under different operation modes.

[0045] See also Figure 2 , a second embodiment of the multi-mode heat pump operation method in the embodiment of the present invention includes:

[0046] 201. Start the multi-mode heat pump and monitor the battery power of the battery, the power generation power of the photovoltaic panel and the water temperature of the water storage tank;

[0047] 202. Calculate the blocking time of the multi-mode heat pump;

[0048] In this embodiment, after the multi-mode heat pump is started, the blocking time of the multi-mode heat pump needs to be calculated based on the start-up time.

[0049] Specifically, the power sources of the multi-mode heat pump include photovoltaic power and city power. By increasing the blocking time, the power of photovoltaic power (SOC) is stored and improved during the blocking time. After the set blocking time is reached and the blocking time reaches a threshold, photovoltaic power is preferentially used to start the multi-mode heat pump.

[0050] 203. Determine whether the ambient temperature meets the preset winter protection conditions;

[0051] In this embodiment, it is determined whether the ambient temperature meets the preset winter protection conditions. If so, in order to prevent the multi-mode heat pump from being damaged due to the ambient temperature being too low, the blocking time is not calculated, and the heat pump in the multi-mode heat pump is directly started to adjust the water storage temperature to the protection temperature through the heat pump.

[0052] 204. If yes, start the heat pump in the multi-mode heat pump and adjust the water storage temperature to the protection temperature through the heat pump;

[0053] 205. When the blocking time reaches the threshold, exit the sleep mode and reduce the sleep opportunity by one;

[0054] In this embodiment, each time the multi-mode heat pump is started, a sleep opportunity is granted. When the multi-mode heat pump enters the sleep mode, the sleep opportunity granted is used once, and when the blocking time reaches the threshold, the sleep mode is exited and the sleep opportunity is reduced by one.

[0055] Furthermore, when the water storage temperature reaches the shutdown temperature, the multi-mode heat pump may be given a sleep opportunity, and steps 202 to 205 are executed cyclically until the sleep opportunity is reset to zero.

[0056] 206. Obtain the target temperature set by the user, and calculate and set the shutdown temperature based on the target temperature and the water storage temperature;

[0057] In this embodiment, if the target temperature of the multi-mode heat pump is updated, the sleep mode is immediately exited, and in response to the user's control instruction for the operating mode, the multi-mode heat pump is switched to the corresponding operating mode based on the target temperature to adjust the water storage temperature.

[0058] 207. Setting the operation mode of the multi-mode heat pump based on the battery power, the power generation and the water storage temperature;

[0059] 208. Control the heat pump to adjust the operating power based on the corresponding operating mode;

[0060] 209. Monitor the water storage temperature, and when the water storage temperature is lower than the difference between the target temperature and the return temperature, control the multi-mode heat pump based on the shutdown temperature to adjust the water storage temperature;

[0061] In this embodiment, the multi-mode heat pump is controlled to adjust the water storage temperature by determining the shutdown temperature. When the water storage temperature reaches the shutdown temperature, the heat pump of the multi-mode heat pump is stopped, a sleep opportunity is added, and the heat pump automatically enters the sleep mode and starts calculating the blocking time.

[0062] 210. When the water storage temperature reaches the shutdown temperature, the temperature adjustment work is terminated.

[0063] Based on the previous embodiment, this embodiment describes in detail the process of calculating the blocking time of the multi-mode heat pump; judging whether the ambient temperature meets the preset winter protection condition; if so, starting the heat pump in the multi-mode heat pump, and adjusting the water storage temperature to the protection temperature through the heat pump; when the blocking time reaches the threshold, exiting the sleep mode and reducing the sleep opportunity by one time. Compared with the traditional method, this embodiment clarifies the process of judging whether the ambient temperature meets the preset winter protection condition. If it does, in order to prevent the multi-mode heat pump from being damaged due to excessive low ambient temperature, the blocking time is not calculated, and the heat pump in the multi-mode heat pump is directly started, and the water storage temperature is adjusted to the protection temperature through the heat pump.

[0064] See also Figure 3 , a third embodiment of the multi-mode heat pump operation method in the embodiment of the present invention includes:

[0065] 301. Start the multi-mode heat pump and monitor the battery power of the battery, the power generation power of the photovoltaic panel and the water temperature of the water storage tank;

[0066] 302. Obtain the target temperature set by the user, and calculate and set the shutdown temperature based on the target temperature and the water storage temperature;

[0067] 303. Determine whether the battery power is high and the power generation power is high;

[0068] In this embodiment, it is determined whether the battery power is high and the power generation is high; if so, the operation mode of the multi-mode heat pump is set to the fourth mode. If the battery power is high and the power generation is high, it is further determined whether the water storage temperature is extremely low: if so, the operation mode of the multi-mode heat pump is set to the standard mode. If the water storage temperature is extremely low, it is further determined whether the power generation is low: if so, the operation mode of the multi-mode heat pump is set to the first mode. If the power generation is low, it is further determined whether the battery power is high: if so, the operation mode of the multi-mode heat pump is set to the third mode. If the battery power is high, it is further determined: if the power generation is medium, the operation mode of the multi-mode heat pump is set to the second mode. If the power generation is high, the operation mode of the multi-mode heat pump is set to the third mode. According to the settings of different operation modes, the multi-mode heat pump is controlled to adjust the water storage temperature to achieve the corresponding operation requirements and goals.

[0069] 304. If yes, setting the operation mode of the multi-mode heat pump to the fourth mode;

[0070] Specifically, the fourth mode is the high photovoltaic operation mode, and the multi-mode heat pump operates in the high photovoltaic operation mode. The high photovoltaic operation mode does not limit the operating power of the heat pump, but only limits the shutdown temperature of the heat pump. The shutdown temperature of the multi-mode heat pump is adjusted by setting the compensation temperature.

[0071] In actual application, the compensation temperature under high photovoltaic operation mode is obtained; the shutdown temperature is set based on the target temperature and the compensation temperature; the multi-mode heat pump is controlled to adjust the water storage temperature based on the shutdown temperature, and stops working when the water storage temperature reaches the shutdown temperature.

[0072] Specifically, if the regulation mode of the multi-mode heat pump is heat storage, the shutdown temperature is the target temperature plus a preset compensation temperature; if the regulation mode of the multi-mode heat pump is cold storage, the shutdown temperature is the target temperature minus the preset compensation temperature.

[0073] Furthermore, the setting of the preset compensation temperature should be limited to a positive value.

[0074] It is understandable that in the high photovoltaic operation mode, since photovoltaic electricity is used, there is no longer any limit on the operating power.

[0075] In actual application scenarios, judgment can also be made based on the amount of photovoltaic power, where the amount of power is divided into high level, medium level and low level. Correspondingly, when the multi-mode heat pump is started, the operation mode of the multi-mode heat pump is controlled based on the detection of the amount of photovoltaic power.

[0076] Specifically, the high level corresponds to the high photovoltaic operation mode, the medium level corresponds to the medium photovoltaic operation mode, and the low level corresponds to the low photovoltaic operation mode, which can simplify the user's selection time and automatically apply photovoltaic electricity to achieve energy-saving effects.

[0077] 305. If not, determine whether the water storage temperature is an extremely low water temperature;

[0078] 306. If yes, the operation mode of the multi-mode heat pump is set to the standard mode;

[0079] 307. If not, determine whether the power generation is low power generation;

[0080] 308. If yes, the operation mode of the multi-mode heat pump is set to the first mode;

[0081] Specifically, the first mode is a sleep mode, which is the same as step 202 to step 205.

[0082] 309. If not, determine whether the battery power is high;

[0083] 310. If yes, the operation mode of the multi-mode heat pump is set to the third mode;

[0084] Specifically, the third mode is the medium photovoltaic operation mode, which switches the multi-mode heat pump to the medium photovoltaic operation mode and sets the shutdown temperature based on the target temperature; operates the multi-mode heat pump based on the second limiting power; calculates the ratio of the operating power of the heat pump to the second limiting power to obtain the medium photovoltaic power ratio; determines the numerical change of the medium photovoltaic power ratio; when the medium photovoltaic power ratio is less than the preset first ratio, cancels the control of the second limiting power on the operating frequency of the heat pump; when the medium photovoltaic power ratio is not less than the first ratio, stops increasing the operating power; when the medium photovoltaic power ratio is not less than the preset second ratio, reduces the operating power, and performs cyclic detection after a preset time interval until the medium photovoltaic power ratio is less than the second ratio and / or the water storage temperature reaches the shutdown temperature, then stops working.

[0085] In this embodiment, if the user selects the medium photovoltaic operation mode, the multi-mode heat pump responds to the control instruction of the medium photovoltaic operation mode selected by the user, the multi-mode heat pump operates in the medium photovoltaic operation mode, and the shutdown temperature of the multi-mode heat pump is set based on the target temperature, wherein the medium photovoltaic operation mode corresponds to a second limiting power, and the operating power of the multi-mode heat pump is limited based on the second limiting power.

[0086] In this embodiment, the operating power of the heat pump is collected, and the medium photovoltaic power ratio value is calculated based on the collected operating power and the second limiting power corresponding to the medium photovoltaic operation mode.

[0087] Specifically, the operating power is monitored and the photovoltaic power ratio is calculated in real time, wherein the first ratio and the second ratio are both customizable preset values, the initial first ratio is preset to 0.9, and the second ratio is preset to 1.

[0088] In practical applications, when the photovoltaic power ratio is less than 0.9, the operating power of the heat pump is not limited; when the photovoltaic power ratio is not less than 0.9, the operating power of the heat pump is fixed, that is, the operating power is stopped from being increased; when the photovoltaic power ratio is not less than 1, the operating power of the heat pump is reduced, and the operating power of the heat pump is cyclically detected after a preset time interval until the photovoltaic power ratio is less than 1, or the water storage temperature reaches the shutdown temperature, then the operation is stopped, that is, the operating power is 0.

[0089] 311. If not, then when the power generation is medium power generation, the operation mode of the multi-mode heat pump is set to the second mode, and when the power generation is high power generation, the operation mode of the multi-mode heat pump is set to the third mode;

[0090] In actual application, the second mode is the low photovoltaic operation mode, which switches the multi-mode heat pump to the low photovoltaic operation mode and sets the shutdown temperature based on the target temperature; operates the multi-mode heat pump based on the first limiting power; calculates the ratio of the operating power of the heat pump to the first limiting power to obtain the low photovoltaic power ratio; controls the operating frequency of the heat pump based on the low photovoltaic power ratio, adjusts the water storage temperature and stops working when the water storage temperature reaches the shutdown temperature.

[0091] In this embodiment, if the user selects the low photovoltaic operation mode, the multi-mode heat pump responds to the control instruction of the low photovoltaic operation mode selected by the user, the multi-mode heat pump operates in the low photovoltaic operation mode, and the shutdown temperature of the multi-mode heat pump is set based on the target temperature, wherein the low photovoltaic operation mode corresponds to a first power limit, and the operating power of the multi-mode heat pump is limited based on the first power limit.

[0092] 312. Control the heat pump to adjust the operating power based on the corresponding operating mode.

[0093] Based on the previous embodiment, this embodiment describes in detail the process of obtaining the compensation temperature in the high photovoltaic operation mode in response to the user's control instruction for the high photovoltaic operation mode; switching the multi-mode heat pump to the high photovoltaic operation mode, and setting the shutdown temperature based on the target temperature and the compensation temperature; controlling the multi-mode heat pump to adjust the water storage temperature based on the shutdown temperature, and stopping the operation when the water storage temperature reaches the shutdown temperature. Compared with the traditional method, this embodiment makes a judgment based on the amount of photovoltaic electricity, where the amount of electricity is divided into high level, medium level and low level. Correspondingly, when starting the multi-mode heat pump, based on the detection of the amount of photovoltaic electricity, the operation mode of the multi-mode heat pump is controlled based on the amount of electricity. The high level corresponds to the high photovoltaic operation mode, the medium level corresponds to the medium photovoltaic operation mode, and the low level corresponds to the low photovoltaic operation mode. This can simplify the user's selection time and automatically apply photovoltaic electricity to achieve energy saving effects.

[0094] The above describes the multi-mode heat pump operation method in the embodiment of the present invention. The following describes the multi-mode heat pump operation device in the embodiment of the present invention. Figure 4 In one embodiment of the present invention, a multi-mode heat pump operating device includes:

[0095] A start module 401 is used to start the multi-mode heat pump and monitor the battery power of the battery, the power generation power of the photovoltaic panel and the water temperature of the water storage tank;

[0096] The target temperature acquisition module 402 is used to acquire the target temperature set by the user, and calculate and set the shutdown temperature based on the target temperature and the water storage temperature;

[0097] An operation mode setting module 403, configured to set the operation mode of the multi-mode heat pump based on the battery power, the generated power and the stored water temperature;

[0098] The temperature adjustment module 404 is used to control the heat pump to adjust the operating power based on the corresponding operating mode.

[0099] In an embodiment of the present invention, the multi-mode heat pump operation device operates the multi-mode heat pump operation method, including starting the multi-mode heat pump and monitoring the battery power of the battery, the power generation of the photovoltaic panel, and the water storage temperature of the water storage tank; obtaining the target temperature set by the user, and calculating and setting the shutdown temperature based on the target temperature and the water storage temperature; setting the operation mode of the multi-mode heat pump based on the battery power, the power generation, and the water storage temperature; and controlling the heat pump to adjust the operation power based on the corresponding operation mode. The present application automatically selects a specific operation mode based on obtaining the target temperature set by the user and the corresponding state of the heat pump, and provides an operation power adjustment method under different operation modes.

[0100] See also Figure 5 The second embodiment of the multi-mode heat pump operating device in the embodiment of the present invention includes:

[0101] A start module 401 is used to start the multi-mode heat pump and monitor the battery power of the battery, the power generation power of the photovoltaic panel and the water temperature of the water storage tank;

[0102] The target temperature acquisition module 402 is used to acquire the target temperature set by the user, and calculate and set the shutdown temperature based on the target temperature and the water storage temperature;

[0103] An operation mode setting module 403, configured to set the operation mode of the multi-mode heat pump based on the battery power, the generated power and the stored water temperature;

[0104] The temperature adjustment module 404 is used to control the heat pump to adjust the operating power based on the corresponding operating mode.

[0105] In this embodiment, the multi-mode heat pump operation device further includes a sleep module 405, and the sleep module 405 is specifically used for:

[0106] Calculate the blocking time of the multi-mode heat pump; determine whether the ambient temperature meets the preset winter protection condition; if so, start the heat pump in the multi-mode heat pump, and adjust the water storage temperature to the protection temperature through the heat pump; when the blocking time reaches the threshold, exit the sleep mode and reduce the sleep opportunity by one.

[0107] In this embodiment, the operation mode setting module 403 is specifically used for:

[0108] The power and electricity judgment submodule 4031 judges whether the battery power is high and whether the power generation power is high; the first mode setting submodule 4032 sets the operation mode of the multi-mode heat pump to the fourth mode if yes; the second mode setting submodule 4033 determines the operation mode of the multi-mode heat pump between the first mode, the second mode, the third mode and the standard mode based on the battery power, the power generation power and the water storage temperature if no.

[0109] In this embodiment, the second mode setting submodule 4033 is specifically used for:

[0110] The water storage temperature judgment unit 40331 judges whether the water storage temperature is an extremely low water temperature; the first mode setting unit 40332 sets the operation mode of the multi-mode heat pump to the standard mode if so; the second mode setting unit 40333 determines the operation mode of the multi-mode heat pump between the first mode, the second mode and the third mode based on the battery power, the power generation power and the water storage temperature if not.

[0111] In this embodiment, the second mode setting unit 40333 is specifically used for:

[0112] The power generation judging subunit 403331 judges whether the power generation is low power generation; the first mode setting subunit 403332, if yes, sets the operation mode of the multi-mode heat pump to the first mode; the second mode setting subunit 403333, if no, determines the operation mode of the multi-mode heat pump between the second mode and the third mode based on the battery power, the power generation and the water storage temperature.

[0113] In this embodiment, the second mode setting subunit 403333 is specifically used for:

[0114] Determine whether the battery power is high; if so, the operation mode of the multi-mode heat pump is set to the third mode; if not, the operation mode of the multi-mode heat pump is set to the second mode when the power generation power is medium power, and the operation mode of the multi-mode heat pump is set to the third mode when the power generation power is high power.

[0115] In this embodiment, the multi-mode heat pump operating device further includes a heat recovery module 406, and the heat recovery module 406 is specifically used for:

[0116] The water storage temperature is monitored, and when the water storage temperature is lower than the difference between the target temperature and the return temperature, the multi-mode heat pump is controlled to adjust the water storage temperature based on the shutdown temperature; when the water storage temperature reaches the shutdown temperature, the temperature adjustment work is terminated.

[0117] Based on the previous embodiment, this embodiment describes in detail the specific functions of each module and the unit structure of some modules. Through the above modules and the specific functions of the original modules, the operation of the multi-mode heat pump operating device is improved, the reliability during operation is improved, the actual logic between each step is clarified, and the practicability of the device is improved.

[0118] above Figure 4 and Figure 5 The multi-mode heat pump operating device in the embodiment of the present invention is described in detail from the perspective of modular functional entities, and the multi-mode heat pump operating device in the embodiment of the present invention is described in detail from the perspective of hardware processing.

[0119] Figure 6 6 is a schematic diagram of the structure of a multi-mode heat pump operation device provided by an embodiment of the present invention. The multi-mode heat pump operation device 600 may have relatively large differences due to different configurations or performances, and may include one or more processors (central processing units, CPU) 610 (for example, one or more processors) and a memory 620, and one or more storage media 630 (for example, one or more mass storage devices) storing application programs 633 or data 632. Among them, the memory 620 and the storage medium 630 can be short-term storage or permanent storage. The program stored in the storage medium 630 may include one or more modules (not shown in the figure), and each module may include a series of request operations in the multi-mode heat pump operation device 600. Furthermore, the processor 610 can be configured to communicate with the storage medium 630, and execute a series of request operations in the storage medium 630 on the multi-mode heat pump operation device 600 to implement the steps of the above-mentioned multi-mode heat pump operation method.

[0120] The multi-mode heat pump operating device 600 may further include one or more power supplies 640, one or more wired or wireless network interfaces 650, one or more input and output interfaces 660, and / or one or more operating systems 631, such as Windows Serve, Mac OS X, Unix, Linux, FreeBSD, etc. It will be appreciated by those skilled in the art that Figure 6 The structure of the multi-mode heat pump operation device shown does not constitute a limitation on the multi-mode heat pump operation device provided in the present application, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0121] The present invention also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. The computer-readable storage medium stores a request, and when the request is executed on a computer, the computer executes the steps of the multi-mode heat pump operation method.

[0122] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device, or unit can refer to the corresponding process in the aforementioned method embodiment and will not be repeated here.

[0123] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several requests to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program codes.

[0124] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-mode heat pump operation method, characterized in that: The multi-mode heat pump operation method is applied to a multi-mode heat pump, the multi-mode heat pump comprising a battery, a photovoltaic panel, a water storage tank and a heat pump, and the multi-mode heat pump operation method comprises: Starting the multi-mode heat pump and monitoring the battery power of the battery, the power generation power of the photovoltaic panel and the water storage temperature of the water storage tank; Obtaining a target temperature set by a user, and calculating and setting a shutdown temperature based on the target temperature and the water storage temperature; setting an operation mode of the multi-mode heat pump based on the battery power, the generated power and the stored water temperature; The heat pump is controlled to adjust the operating power based on the corresponding operating mode.

2. The multi-mode heat pump operation method according to claim 1, characterized in that: The operating mode includes a sleep mode, After starting the multi-mode heat pump and monitoring the battery power of the battery, the power generation power of the photovoltaic panel and the water storage temperature of the water storage tank, the method further includes: calculating a blocking time of the multi-mode heat pump; Determine whether the ambient temperature meets the preset winter protection conditions; If yes, start the heat pump in the multi-mode heat pump, and adjust the water storage temperature to the protection temperature through the heat pump; When the blocking time reaches the threshold, the sleep mode is exited and the sleep opportunity is reduced by one.

3. The multi-mode heat pump operation method according to claim 1, characterized in that: The operation modes further include a first mode, a second mode, a third mode, a fourth mode and a standard mode, the battery power includes a high power, and the power generation includes a high power generation; The operation mode of the multi-mode heat pump is set based on the battery power, the power generation power and the water storage temperature, including: Determining whether the battery power is high and the power generation power is high; If yes, setting the operation mode of the multi-mode heat pump to the fourth mode; If not, the operation mode of the multi-mode heat pump is determined among the first mode, the second mode, the third mode and the standard mode based on the battery power, the generated power and the stored water temperature.

4. The multi-mode heat pump operation method according to claim 3, characterized in that: The determining of the operation mode of the multi-mode heat pump between the first mode, the second mode, the third mode and the standard mode based on the battery power, the generated power and the stored water temperature comprises: Determining whether the stored water temperature is an extremely low water temperature; If yes, the operation mode of the multi-mode heat pump is set to the standard mode; If not, the operation mode of the multi-mode heat pump is determined among the first mode, the second mode and the third mode based on the battery power, the generated power and the stored water temperature.

5. The multi-mode heat pump operation method according to claim 4, characterized in that: The power generation also includes medium power generation and low power generation; The step of determining the operation mode of the multi-mode heat pump between the first mode, the second mode, and the third mode based on the battery power, the generated power, and the stored water temperature includes: Determining whether the generated power is low generated power; If yes, the operation mode of the multi-mode heat pump is set to the first mode; If not, the operation mode of the multi-mode heat pump is determined between the second mode and the third mode based on the battery power, the generated power and the stored water temperature.

6. The multi-mode heat pump operation method according to claim 5, characterized in that: The step of determining the operation mode of the multi-mode heat pump between the second mode and the third mode based on the battery power, the generated power and the stored water temperature comprises: Determining whether the battery power is high; If yes, the operation mode of the multi-mode heat pump is set to the third mode; If not, the operation mode of the multi-mode heat pump is set to the second mode when the power generation power is medium power generation power, and the operation mode of the multi-mode heat pump is set to the third mode when the power generation power is high power generation power.

7. The multi-mode heat pump operation method according to claim 1, characterized in that: After controlling the heat pump to adjust the operating power based on the corresponding operating mode, the method further includes: monitoring the water storage temperature, and when the water storage temperature is lower than the difference between the target temperature and the return temperature, controlling the multi-mode heat pump to adjust the water storage temperature based on the shutdown temperature; When the water storage temperature reaches the shutdown temperature, the temperature adjustment work is terminated.

8. A multi-mode heat pump operating device, characterized in that: The multi-mode heat pump operating device is applied to a multi-mode heat pump, the multi-mode heat pump comprises a battery, a photovoltaic panel, a water storage tank and a heat pump, and the multi-mode heat pump operating device comprises: A start module, used for starting the multi-mode heat pump and monitoring the battery power of the battery, the power generation power of the photovoltaic panel and the water temperature of the water storage tank; A target temperature acquisition module, used to acquire a target temperature set by a user, and calculate and set a shutdown temperature based on the target temperature and the water storage temperature; An operation mode setting module, used for setting the operation mode of the multi-mode heat pump based on the battery power, the generated power and the stored water temperature; The temperature regulating module is used to control the heat pump to adjust the operating power based on the corresponding operating mode.

9. An electronic device, characterized in that: The electronic device includes a memory and at least one processor, wherein instructions are stored in the memory; the at least one processor calls the instructions in the memory so that the electronic device executes each step of the multi-mode heat pump operation method as described in any one of claims 1-7.

10. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instructions are executed by a processor, the steps of the multi-mode heat pump operation method according to any one of claims 1 to 7 are implemented.

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