Heating mode control method, system and equipment and computer storage medium

Abstract

The invention provides a heating mode control method and system, a heating mode control device and a storage medium, and is applied to the technical field of heaters, the heating mode control method comprises the steps that the critical energy efficiency value and the real-time energy efficiency value of a heat pump in a hybrid power system are obtained, and the current environment temperature is obtained; and comparing the critical energy efficiency value with the real-time energy efficiency value to obtain a comparison result, determining a target heating mode from various heating modes of the hybrid power system based on the comparison result and the current environment temperature, and controlling the hybrid power system to operate the target heating mode, heating modes of the hybrid power system comprise a single boiler mode, a single heat pump mode and a hybrid power mode. According to the technical scheme, the heating mode can be selected according to the environment temperature and the energy efficiency value of the heat pump on the premise of considering the heating cost, so that the heating cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of heaters, and in particular to a heating mode control method, system, heating mode control device and storage medium. Background Art

[0002] Nowadays, factors such as rising energy prices and carbon emission policies have restricted the use of gas boilers. Air source heat pump heating is affected by ambient temperature and is difficult to meet large heat demands in low temperature weather, making the hybrid system consisting of gas boilers and air source heat pumps the main heating method.

[0003] However, the hybrid system composed of a gas boiler and an air source heat pump is set based on the critical ambient temperature, and the judgment basis is single. When the ambient temperature is higher, the heat pump heating method will be adopted. The heat pump will consume a lot of electricity and time when outputting higher hot water temperature, which will greatly increase the heating cost. Summary of the invention

[0004] The main purpose of the present invention is to provide a heating mode control method, system, device and computer storage medium, aiming to provide a heating mode control scheme, which selects the heating mode by ambient temperature and energy efficiency value of the heat pump under the premise of considering the heating cost, so as to reduce the heating cost.

[0005] To achieve the above object, the present invention provides a heating mode control method, the heating mode control method comprising:

[0006] Obtain the critical energy efficiency value and real-time energy efficiency value of the heat pump in the hybrid system, and obtain the current ambient temperature;

[0007] The critical energy efficiency value and the real-time energy efficiency value are compared to obtain a comparison result, and a target heating mode is determined from various heating modes of the hybrid system based on the comparison result and the current ambient temperature, and the hybrid system is controlled to operate the target heating mode, wherein the heating modes of the hybrid system include a single boiler mode, a single heat pump mode and a hybrid mode.

[0008] Optionally, the step of determining a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature includes:

[0009] Obtaining an operating temperature threshold of the heat pump, and obtaining a critical temperature value corresponding to the critical energy efficiency value;

[0010] The heat pump operating temperature interval is obtained by taking the operating temperature threshold and the critical temperature value as the interval endpoints. When the current ambient temperature is not in the heat pump operating temperature interval or the comparison result indicates that the real-time energy efficiency value is less than the critical energy efficiency value, the target heating mode is determined to be the single boiler mode.

[0011] Optionally, obtaining the critical temperature value corresponding to the critical energy efficiency value includes:

[0012] A critical temperature range corresponding to the critical energy efficiency value is determined in preset critical temperature data, and a critical temperature value is obtained based on a minimum temperature value in the critical temperature range.

[0013] Optionally, the step of determining a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature includes:

[0014] When the current ambient temperature is within the heat pump operating temperature range and the comparison result indicates that the real-time energy efficiency value is greater than or equal to the critical energy efficiency value, determining the heating capacity of the heat pump;

[0015] If the heating amount is less than the preset heat demand, the target heating mode is determined to be the hybrid mode.

[0016] Optionally, the step of determining a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature includes:

[0017] When the current ambient temperature is within the heat pump operating temperature range and the real-time energy efficiency value is greater than or equal to the critical energy efficiency value, if the heating amount is greater than or equal to the heat demand, the target heating mode is determined to be a single heat pump mode.

[0018] Optionally, the step of determining the heating capacity of the heat pump comprises:

[0019] Acquire the hot water temperature, and obtain the unit heating capacity based on the hot water temperature and the current ambient temperature;

[0020] The working time of the heat pump is acquired, and the heating capacity of the heat pump is obtained based on the unit heating capacity and the working time.

[0021] Optionally, the step of obtaining the critical energy efficiency value of the heat pump includes:

[0022] Obtain real-time electricity and gas prices, and obtain the heating efficiency of the boiler;

[0023] A first heating cost is determined based on the real-time electricity price, a second heating cost is determined based on the real-time gas price and the heating efficiency, and a critical energy efficiency value of the heat pump is obtained based on the first heating cost and the second heating cost.

[0024] To achieve the above object, the present invention further provides a heating mode control system, the heating mode control system comprising:

[0025] A first acquisition module is used to obtain a critical energy efficiency value and a real-time energy efficiency value of a heat pump in a hybrid system, and obtain a current ambient temperature;

[0026] A heating mode management module is used to compare the critical energy efficiency value and the real-time energy efficiency value to obtain a comparison result, and determine a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature, and control the hybrid system to operate the target heating mode, wherein the heating modes of the hybrid system include a single boiler mode, a single heat pump mode and a hybrid mode.

[0027] To achieve the above-mentioned purpose, the present invention also provides a heating mode control device, which includes: a memory, a processor, and a heating mode control program stored in the memory and executable on the processor, and the heating mode control program implements the steps of the heating mode control method described above when executed by the processor.

[0028] To achieve the above object, the present invention further provides a computer storage medium, on which a heating mode control program is stored, and when the heating mode control program is executed by a processor, the steps of the heating mode control method described above are implemented.

[0029] In an embodiment of the present invention, by obtaining the critical energy efficiency value and real-time energy efficiency value of the heat pump in the hybrid system and obtaining the current ambient temperature when controlling the heating mode in the hybrid system, the basis for controlling the heating mode can be obtained; then the critical energy efficiency value and the real-time energy efficiency value are compared to obtain a comparison result, and based on the comparison result and the current ambient temperature, a target heating mode is determined from various heating modes of the hybrid system, and the hybrid system is controlled to operate the target heating mode, wherein the heating modes of the hybrid system include a single boiler mode, a single heat pump mode and a hybrid mode, and a suitable heating mode can be selected based on the ambient temperature and heating energy efficiency. Compared with the traditional method of determining the heating mode based only on the ambient temperature, this solution indirectly reflects the heating cost of the heat pump through the heating energy efficiency, thereby avoiding the technical problem that the heating mode greatly increases the heating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1 It is a schematic diagram of the device structure of the hardware operating environment of the heating mode control device involved in the embodiment of the present invention;

[0033] Figure 2 It is a flow chart of a first embodiment of a heating mode control method of the present invention;

[0034] Figure 3 This is a diagram of an implementation scenario of an embodiment of a heating mode control method of the present invention;

[0035] Figure 4 A schematic diagram of controlling a heating mode based on ambient temperature according to an embodiment of a heating mode control method of the present invention;

[0036] Figure 5 A schematic diagram of controlling a heating mode based on hot water temperature according to an embodiment of a heating mode control method of the present invention;

[0037] Figure 6 A schematic diagram of controlling the heating mode based on different ambient temperatures and water temperatures according to an embodiment of a heating mode control method of the present invention;

[0038] Figure 7 It is a schematic diagram of an implementation flow of an embodiment of a heating mode control method of the present invention;

[0039] Figure 8 It is a three-dimensional schematic diagram of an embodiment of a heating mode control method of the present invention;

[0040] Fig. 9 A schematic diagram of hot water cost of an embodiment of a heating mode control method of the present invention;

[0041] Fig.10 It is a functional module diagram of an embodiment of a heating mode control system of the present invention. DETAILED DESCRIPTION

[0042] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] like Figure 1 As shown, Figure 1 It is a schematic diagram of the device structure of the hardware operating environment of the heating mode control device involved in the embodiment of the present invention.

[0048] like Figure 1As shown, in the hardware operating environment of the heating mode control device, the heating mode control device may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.

[0049] Those skilled in the art will understand that Figure 1 The heating mode control device structure shown in the figure does not constitute a limitation on the terminal device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0050] like Figure 1 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a heating mode control program.

[0051] exist Figure 1 In the device shown, the network interface 1004 is mainly used to connect to the backend server and communicate data with the backend server; the user interface 1003 is mainly used to connect to the client (user end) and communicate data with the client; and the processor 1001 can be used to call the heating mode control program stored in the memory 1005 and perform the following operations:

[0052] Obtain the critical energy efficiency value and real-time energy efficiency value of the heat pump in the hybrid system, and obtain the current ambient temperature;

[0053] The critical energy efficiency value and the real-time energy efficiency value are compared to obtain a comparison result, and a target heating mode is determined from various heating modes of the hybrid system based on the comparison result and the current ambient temperature, and the hybrid system is controlled to operate the target heating mode, wherein the heating modes of the hybrid system include a single boiler mode, a single heat pump mode and a hybrid mode.

[0054] Based on the above hardware structure, the overall concept of each embodiment of the heating mode control method of the present invention is proposed.

[0055] Nowadays, the hybrid system composed of gas boilers and air source heat pumps is set based on the critical ambient temperature. The judgment basis is single. When the ambient temperature is higher, the heat pump heating method will be adopted. However, the heat pump will consume a lot of electricity and time when outputting higher hot water temperature, which will greatly increase the heating cost.

[0056] In order to solve the above problems, the present invention proposes a heating mode control method.

[0057] Based on the overall concept of the various embodiments of the heating mode control method of the present invention, various embodiments of the heating mode control method of the present invention are proposed.

[0058] Please refer to Figure 2 , Figure 2 It should be noted that although the flowchart shows a logical sequence, in some cases, the steps of the heating mode control method of the present invention can be performed in a different order than that shown here.

[0059] In this embodiment, the execution subject of the heating mode control method may be a heating mode control device, which may be a computer, a mobile phone, or other device. In this embodiment, for ease of description, the execution subject is omitted to explain each embodiment. In this embodiment, the heating mode control method includes the following steps S10 to S20:

[0060] Step S10, obtaining a critical energy efficiency value and a real-time energy efficiency value of a heat pump in a hybrid system, and obtaining a current ambient temperature;

[0061] It should be noted that since the heating efficiency of the heat pump during operation will be affected by both the ambient temperature and the hot water temperature, before controlling the heating mode, it is also necessary to consider whether the heating efficiency of the heat pump meets the requirements. For example, if the heating efficiency of the heat pump is low, the heating cost will increase, that is, if the heating capacity of the heat pump is low, it does not meet the requirements.

[0062] It should be understood that gas is required for heating when the boiler is used for heating, and electricity is required for heating when the heat pump is used for heating. In this embodiment, the efficiency of the heat pump heating is represented by the energy efficiency value.

[0063] It should be noted that the boiler and heat pump in the hybrid system are in the same operating environment. The above critical energy efficiency value refers to the energy efficiency value of the heat pump when the boiler and the heat pump output the same calorific value and the heating costs of the boiler and the heat pump are the same, while the real-time energy efficiency value is the energy efficiency value generated in real time when the heat pump is actually running. In a feasible embodiment, the real-time energy efficiency value can be calculated based on the ambient temperature and the hot water temperature (the water temperature generated by heating). For example, the real-time energy efficiency value of the heat pump can be calculated by the following formula:

[0064] COP = g(T A , T W )=b1+b2*T A +b3*T W +b4*T A 2 +b5*T A *T W +b6*T W 2 +b7*T A 3 +b8*T A 2 *T W +b9T A *T W 2 +b 10 *T W 3 , where T A is the ambient temperature, T W is the hot water temperature, COP is the real-time energy efficiency value, b1, b2, …, b10 are fitting parameters, and the fitting parameters can be determined by fitting the test data.

[0065] In this embodiment, when controlling the heating mode in the hybrid system, the current ambient temperature in the operating environment is obtained, and when the boiler and the heat pump output the same calorific value and the costs of boiler heating and heat pump heating are the same, the energy efficiency value of the heat pump is obtained, and when the heat pump is running, the real-time energy efficiency value of the heat pump is obtained through the hot water temperature and the ambient temperature, so as to determine whether to use a separate heat pump mode for heating based on the ambient temperature and the energy efficiency value.

[0066] In a feasible embodiment, the above step S10 further includes:

[0067] Step S101, obtaining real-time electricity price and real-time gas price, and obtaining the heating efficiency of the boiler;

[0068] In this embodiment, since the critical energy efficiency value is obtained based on the heating cost of the heat pump and the heating cost of the boiler, and the heating cost of the heat pump is calculated based on the real-time electricity price, and the heating cost of the boiler is calculated based on the heating efficiency of the boiler and the real-time gas price, before determining the critical energy efficiency value, the real-time electricity price, real-time gas price and heating efficiency of the boiler are obtained.

[0069] Step S102: determining a first heating cost based on the real-time electricity price, determining a second heating cost based on the real-time gas price and the heating efficiency, and obtaining a critical energy efficiency value of the heat pump based on the first heating cost and the second heating cost.

[0070] In this embodiment, after obtaining the real-time electricity price, the real-time gas price and the heating efficiency of the boiler, the heating cost of the heat pump (the first heating cost) can be obtained based on the real-time electricity price, and the heating cost of the boiler (the second heating cost) can be obtained based on the real-time gas price and the heating efficiency of the boiler. The first heating cost and the second heating cost are made equal, and the critical energy efficiency value can be obtained based on the real-time electricity price, the real-time gas price and the heating efficiency.

[0071] As an example, the calculation formula of the first heating cost is:

[0072]

[0073] Among them, cop is the energy efficiency value, Qr is the user's heat demand, Pele is the real-time electricity price, and the calculation formula for the second heating cost is:

[0074]

[0075] Among them, ηboiler is the heating efficiency of the gas boiler, and Pgas is the real-time gas price. After obtaining the first heating cost and the second heating cost, let the first heating cost and the second heating cost be equal, and the calculation formula of the critical energy efficiency value can be obtained as follows:

[0076]

[0077] Among them, COP eq is the critical energy efficiency value.

[0078] Step S20, compare the critical energy efficiency value and the real-time energy efficiency value to obtain a comparison result, and determine a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature, and control the hybrid system to operate the target heating mode, wherein the heating modes of the hybrid system include a single boiler mode, a single heat pump mode and a hybrid mode.

[0079] In this embodiment, after obtaining the critical energy efficiency value, the real-time energy efficiency value and the current ambient temperature, the real-time energy efficiency value and the critical energy efficiency value of the heat pump are compared to obtain a comparison result, and then the target heating mode is determined from the single boiler mode, the single heat pump mode and the hybrid mode based on the current ambient temperature and the comparison result, and then the hybrid system is controlled to operate the target heating mode, so that the target heating mode that does not increase the heating cost can be determined based on the comparison result of the heat pump.

[0080] In a feasible embodiment, the above step S20 includes:

[0081] Step S201, obtaining the operating temperature threshold of the heat pump, and obtaining the critical temperature value corresponding to the critical energy efficiency value;

[0082] It should be noted that the operation of the heat pump has certain requirements on the ambient temperature, that is, when the heat pump is running, there is a minimum ambient temperature and a maximum ambient temperature. In this embodiment, the operating temperature threshold refers to the maximum ambient temperature at which the heat pump can operate.

[0083] In this embodiment, after obtaining the critical energy efficiency value of the heat pump, the critical temperature value corresponding to the critical energy efficiency value is obtained, and the maximum ambient temperature when the heat pump can operate is obtained, so as to determine whether the heat pump can operate based on the current ambient temperature and the maximum ambient temperature.

[0084] For example, assuming that the critical energy efficiency value of the heat pump is 2.5, and the temperature value corresponding to 2.5 is -7°C, and the maximum ambient temperature at which the heat pump can operate is 43°C, then the critical temperature value is -7°C, and the operating temperature threshold is 43°C.

[0085] Step S202, obtaining a heat pump operating temperature interval with the operating temperature threshold and the critical temperature value as interval endpoints, and determining that the target heating mode is a single boiler mode when the current ambient temperature is not in the heat pump operating temperature interval or the comparison result indicates that the real-time energy efficiency value is less than the critical energy efficiency value.

[0086] In this embodiment, after obtaining the operating temperature threshold and the critical temperature value, the heat pump operating temperature interval is obtained according to the operating temperature threshold and the critical temperature value, that is, since the critical temperature value is the ambient temperature at which the heat pump can operate, the critical temperature value is less than or equal to the operating temperature threshold, and then the interval with the critical temperature value as the left end point of the interval and the operating temperature threshold as the right end point of the interval is taken as the heat pump operating temperature interval. After obtaining the heat pump operating temperature interval and the current ambient temperature, it is determined whether the current ambient temperature belongs to the heat pump operating temperature interval; if the current ambient temperature does not belong to the heat pump operating temperature interval, the heat pump cannot operate at the current ambient temperature, so the single boiler mode is determined as the target heating mode; if the current ambient temperature belongs to the heat pump operating temperature interval, it is determined whether the comparison result can represent that the real-time energy efficiency value of the heat pump is less than the critical energy efficiency value. If the comparison result represents that the real-time energy efficiency value is less than the critical energy efficiency value, it represents that under the condition of the current ambient temperature, only using the heat pump for heating will result in a high heating cost of the heat pump. In order to reduce the heating cost of the heat pump, the single boiler mode is determined as the target heating mode.

[0087] In another feasible embodiment, it is also possible to first determine whether the current heating efficiency of the heat pump meets the requirements based on the comparison results (that is, if the real-time energy efficiency value is greater than or equal to the critical energy efficiency value, it meets the requirements); if not, the single boiler mode is determined as the target heating mode; if it is compliant, it is determined whether the current ambient temperature is within the heat pump operating temperature range, and then it is determined whether the target heating mode is determined as the single boiler mode.

[0088] For example, if the operating temperature range of the heat pump is -7°C-43°C, and the current ambient temperature is 44°C, since the heat pump cannot operate under 44°C conditions, the single boiler mode is determined as the target heating mode at an ambient temperature of 44°C; if the operating temperature range of the heat pump is -7°C-43°C, and the current ambient temperature is 5°C, the real-time energy efficiency value and the critical energy efficiency value are compared to obtain a comparison result. Assuming that the real-time energy efficiency value is 2 and the critical energy efficiency value is 2.5, the comparison result indicates that the real-time energy efficiency value is less than the critical energy efficiency value, which further indicates that the energy efficiency of the heat pump in outputting hot water at an ambient temperature of 5°C is low, resulting in a high heating cost for the output hot water. Therefore, when the real-time energy efficiency value is less than the critical energy efficiency value, the single boiler mode is also determined as the target heating mode.

[0089] In a feasible embodiment, the above step S20 further includes:

[0090] Step S203, determining the heating capacity of the heat pump when the current ambient temperature is within the heat pump operating temperature range and the comparison result indicates that the real-time energy efficiency value is greater than or equal to the critical energy efficiency value;

[0091] In this embodiment, when it is detected that the current ambient temperature is in the heat pump operating temperature range, and when it is detected that the comparison result indicates that the real-time energy efficiency value of the heat pump is greater than or equal to the critical energy efficiency value, it indicates that the current operation of the heat pump will not increase the heating cost. In order to determine whether the heat generated by the heat pump meets the needs of the user, it is also necessary to determine the amount of heating that the heat pump can generate.

[0092] As an example, assuming that the operating temperature range of the heat pump is -7℃-43℃, and the critical energy efficiency value of the heat pump is 2.5, when the current ambient temperature is 20℃ and the real-time energy efficiency value of the heat pump is 3, the comparison result of the critical energy efficiency value and the real-time energy efficiency value can indicate that the efficiency of the heat pump heating is high, and the operation of the heat pump will not lead to an increase in heating costs. In order to determine whether the heat generated by the heat pump meets the user's needs, it is also necessary to determine the amount of heating that the heat pump can generate.

[0093] Step S204: if the heating amount is less than the preset heat demand, determine that the target heating mode is the hybrid mode.

[0094] In this embodiment, after obtaining the heating capacity of the heat pump, it is necessary to compare the heating capacity of the heat pump with the pre-set heat demand. When the heating capacity of the heat pump is less than the heat demand, it can be determined that the heat pump alone cannot meet the user's heating demand, so the target heating mode is determined to be the hybrid mode.

[0095] It should be noted that the heat demand can be preset by the user or calculated by the heating mode control device based on the user's historical usage records. The hybrid mode refers to a mode in which both the heat pump and the boiler are used for heating. For example, when the user has a heat demand, the hot water temperature and the hot water demand can be input on the preset page of the heating mode control device, thereby determining the heat demand based on the hot water temperature and the hot water demand.

[0096] As an example, when the heating capacity of the heat pump is 1kWh and the heat demand is 1.5kWh, it is determined that the heat pump heating alone cannot meet the user's needs. Therefore, when the heating capacity of the heat pump is less than the heating demand, the target heating mode is determined to be the hybrid mode. That is to say, at the current ambient temperature at which the heat pump can operate, if the energy efficiency value of the heat pump meets the requirements and the heating capacity generated by the heat pump alone cannot meet the heating demand, the heat pump and the boiler are started, and the difference between the heating capacity of the heat pump and the heat demand is supplemented by the heat generated by the boiler heating, thereby being able to meet the user's heating needs on the basis of controlling the heating cost.

[0097] In a feasible embodiment, the above step S20 further includes:

[0098] Step S205, when the current ambient temperature is in the heat pump operating temperature range and the comparison result indicates that the real-time energy efficiency value is greater than or equal to the critical energy efficiency value, if the heating amount is greater than or equal to the heat demand, determine that the target heating mode is the single heat pump mode.

[0099] In this embodiment, after obtaining the heating capacity of the heat pump, if it is detected that the heating capacity of the heat pump is less than or equal to the heating demand, it indicates that the heat pump alone can meet the user's heating demand. Therefore, when it is detected that the heating capacity of the heat pump is less than or equal to the heating demand, the target heating mode is determined as the single heat pump mode, so that heating is provided to the user only based on the heat generated by the heat pump.

[0100] As an example, under the premise that the current ambient temperature meets the requirements and the real-time energy efficiency value meets the requirements, when the heating capacity of the heat pump is 1kWh and the heat demand is 0.8kWh, it will be detected that the heating capacity generated by the heat pump alone is greater than the user's heating demand, indicating that the heating capacity generated by the heat pump alone is sufficient to meet the user's heating demand. Therefore, the target heating mode is determined to be the single heat pump mode, thereby avoiding the heating cost generated by boiler heating.

[0101] In an embodiment of the present invention, by obtaining the critical energy efficiency value and real-time energy efficiency value of the heat pump in the hybrid system and obtaining the current ambient temperature when controlling the heating mode in the hybrid system, the basis for controlling the heating mode can be obtained; then the critical energy efficiency value and the real-time energy efficiency value are compared to obtain a comparison result, and based on the comparison result and the current ambient temperature, a target heating mode is determined from various heating modes of the hybrid system, and the hybrid system is controlled to operate the target heating mode, wherein the heating modes of the hybrid system include a single boiler mode, a single heat pump mode and a hybrid mode, and a suitable heating mode can be selected based on the ambient temperature and heating energy efficiency. Compared with the traditional method of determining the heating mode based only on the ambient temperature, this solution indirectly reflects the heating cost of the heat pump through the heating energy efficiency, thereby avoiding the technical problem that the heating mode greatly increases the heating cost.

[0102] Furthermore, based on the first embodiment of the heating mode control method of the present invention, a second embodiment of the heating mode control method of the present invention is proposed.

[0103] In this embodiment, the above step S201 includes:

[0104] Step S2012: determining a critical temperature range corresponding to the critical energy efficiency value in the preset critical temperature data, and obtaining a critical temperature value based on a minimum temperature value in the critical temperature range.

[0105] It should be noted that the critical temperature range refers to the ambient temperature range corresponding to a certain energy efficiency value of the heat pump, and the critical temperature data is the ambient temperature corresponding to different energy efficiency values ​​based on historical operation records.

[0106] In this embodiment, multiple ambient temperatures corresponding to an energy efficiency value can be obtained through the historical operation records of the heat pump. After the multiple ambient temperatures are obtained, the critical temperature range corresponding to the energy efficiency value can be determined based on the multiple ambient temperatures. In a feasible embodiment, if the historical operation records of the heat pump are not sufficient to determine the critical temperature range, the critical temperature range can also be determined based on the ambient temperature corresponding to the energy efficiency value input by the technician.

[0107] As an example, through the historical operation records of the heat pump, it can be obtained that the ambient temperature corresponding to the energy efficiency value of 2.5 is 15℃, 20℃ and 24℃. Then the critical temperature range corresponding to the energy efficiency value of 2.5 is set to 15-24℃. Through the historical operation records of the heat pump, it can be obtained that the ambient temperature corresponding to the energy efficiency value of 3 is 25℃, 30℃ and 35℃. Then the critical temperature range corresponding to the energy efficiency value of 3 is set to 25-35℃.

[0108] In this embodiment, after the critical energy efficiency value is obtained, the critical temperature range corresponding to the critical energy efficiency value is determined, and the minimum temperature value in the critical temperature range is determined, and then the critical temperature value is obtained based on the minimum temperature value.

[0109] It should be noted that, in a feasible embodiment, the minimum temperature value may be used as the critical temperature value. In another feasible embodiment, the temperature error value of the heat pump may be obtained, and the critical temperature value may be obtained based on the minimum temperature value and the temperature error value.

[0110] As an example, assuming that the critical energy efficiency value is 3, and the ambient temperature range corresponding to the energy efficiency value 3 is 25-35°C, then the critical temperature range corresponding to the energy efficiency value 3 is 25-35°C, and then the minimum temperature value 25°C is determined from the critical temperature range, and then the critical temperature value is obtained based on the minimum temperature value. For example, the critical temperature value may be 25°C, and if there is a temperature error value in the heat pump, assuming that the temperature error value is 0.2°C, the critical temperature value may also be 25.2°C.

[0111] In this embodiment, the present invention determines a critical temperature range corresponding to a critical energy efficiency value, and then determines the critical temperature value based on the minimum temperature value in the critical temperature range, thereby making the critical temperature value more accurate and making the working timing of the heat pump more reasonable, thereby achieving the purpose of controlling the cost of heating.

[0112] Furthermore, based on the first and second embodiments of the heating mode control method of the present invention, a third embodiment of the heating mode control method of the present invention is proposed.

[0113] In this embodiment, the above step S203 includes:

[0114] Step S2031, obtaining the hot water temperature, and obtaining the unit heating capacity based on the hot water temperature and the current ambient temperature;

[0115] In this embodiment, when it is detected that the critical energy efficiency value of the heat pump is less than or equal to the real-time energy efficiency value, it indicates that the heating efficiency of the heat pump meets the requirements, and the hot water temperature required to be generated by the heat pump is obtained, and then the unit heating amount is determined based on the hot water temperature and the current ambient temperature.

[0116] It should be noted that the unit heating capacity refers to the heat generated by the heat pump per unit time.

[0117] As an example, assuming that the hot water temperature is 45°C and the current ambient temperature is 30°C, the heating capacity generated by the heat pump per unit time is determined based on the hot water temperature of 45°C and the current ambient temperature of 30°C. For example, the unit heating capacity of the heat pump can be calculated according to the following formula:

[0118] W=f(TA ,T W )=a1+a2*T A +a3*T W +a4*T A 2 +a5*T A *T W +a6*T W 2 +a7*T A 3 +a8*T A 2 *T W +a9T A *T W 2 +a

[0119] 10 *T W 3 ,

[0120] Among them, w is the unit heating capacity, a1, a2, ..., a10 are fitting parameters, which can be determined by fitting the test data.

[0121] Step S2032: Obtain the working time of the heat pump, and obtain the heating capacity of the heat pump based on the unit heating capacity and the working time.

[0122] In this embodiment, after the unit heating capacity of the heat pump is obtained, the working time of the heat pump is also obtained. It should be noted that the working time can be set by the user or the default working time of the heat pump. After the working time of the heat pump is obtained, the heating capacity of the heat pump is calculated based on the unit heating capacity and the working time. In a feasible embodiment, the heating capacity of the heat pump can be the product of the unit heating capacity and the working time.

[0123] As an example, assuming that the unit heating capacity of the heat pump is 2kW and the working time of the heat pump is 6 hours, the heating capacity of the heat pump obtained based on the unit mass and the working time may be 12kWh.

[0124] Please refer to Figure 3 , Figure 3 This is an implementation scenario diagram of an embodiment of the heating mode control method of the present invention, wherein the heat pump host and the gas boiler are controlled by a wire controller, the floor heating is used to dissipate heat, and the water tank is used to store hot water.

[0125] Please refer to Figure 4 , Figure 4This is a schematic diagram of a heating mode control method based on ambient temperature according to an embodiment of the present invention, wherein when the heat generated by the heat pump can meet the heat demand, the single heat pump mode is adopted, and if the heat generated by the heat pump is not enough to meet the heat demand, the hybrid mode is adopted. In addition, when the operating temperature of the heat pump is outside, the single boiler mode is required for heating.

[0126] Please refer to Figure 5 , Figure 5 This is a schematic diagram of a heating mode based on hot water temperature control according to an embodiment of a heating mode control method of the present invention, wherein when the heat generated by the heat pump is sufficient to provide heat to the user, a single heat pump mode is adopted, and when the water temperature required by the user is higher than the highest temperature generated by the heat pump, a single boiler mode is adopted.

[0127] Please refer to Figure 6 , Figure 6 The schematic diagram of the heating mode control method according to an embodiment of the present invention is based on the control of the heating mode under different ambient temperatures and water temperatures, wherein, if COP>COPeq, the single heat pump mode is turned on; if COP≤COPeq, the single boiler mode is turned on. In addition, in this embodiment, T A Indicates the ambient temperature, T W Indicates the hot water temperature, T A,limit1 Indicates the lowest ambient temperature at which the heat pump can operate, T A,limit2 Indicates the maximum ambient temperature at which the heat pump can operate, T A,eq Indicates the critical ambient temperature, T W,limit Indicates the highest water temperature that the heat pump can produce.

[0128] Please refer to Figure 7 , Figure 7 The present invention is a schematic diagram of the implementation process of an embodiment of the heating mode control method of the present invention, wherein, when the current ambient temperature meets the requirements, the heat pump energy efficiency value meets the requirements, and the heating amount generated by the heat pump meets the user's needs, the single heat pump mode is adopted; under the same conditions, if the heating amount generated by the heat pump does not meet the user's needs, the hybrid mode is adopted; if the current ambient temperature does not meet the requirements, or the heat pump energy efficiency value does not meet the requirements, the single boiler mode is adopted, wherein t represents the maximum time the heat pump can be turned on every day, and W represents the heating capacity of the air source heat pump.

[0129] Please refer to Figure 8 , Figure 8 FIG. 1 is a three-dimensional schematic diagram of an embodiment of a heating mode control method of the present invention, wherein T A,limit2 is the maximum ambient temperature at which the heat pump can operate; T A,eq is the critical ambient temperature; T W,limitIt is the highest water temperature that the heat pump can produce; in area A, the single heat pump mode is turned on; in area B, the hybrid mode is turned on; in area C, the single boiler mode is turned on.

[0130] Please refer to Fig. 9 , Fig. 9 This is a hot water cost diagram of an embodiment of the heating mode control method of the present invention, wherein X represents the cost generated by the traditional control method, Y represents the cost generated by the control method of the present invention, and Z is the average temperature. Table 1 lists the total cost-benefit comparison data of the traditional control method and the control method of the present invention.

[0131] Table 1

[0132]

[0133] The total cost generated by the control method proposed by the present invention is reduced by 7.8% compared with the cost generated by the traditional control method.

[0134] In this embodiment, by determining the heating capacity of the heat pump by unit heating capacity and working time, the heating capacity of the heat pump can be accurately obtained, so that the appropriate heating mode can be accurately selected.

[0135] In addition, the present invention also proposes a heating mode control system.

[0136] Please refer to Fig.10 , the heating mode control system comprises:

[0137] A first acquisition module 10 is used to acquire a critical energy efficiency value and a real-time energy efficiency value of a heat pump in a hybrid system, and to acquire a current ambient temperature;

[0138] The heating mode management module 20 is used to compare the critical energy efficiency value and the real-time energy efficiency value to obtain a comparison result, and determine a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature, and control the hybrid system to operate the target heating mode, wherein the heating modes of the hybrid system include a single boiler mode, a single heat pump mode and a hybrid mode.

[0139] Optionally, the heating mode management module 20 includes:

[0140] A temperature acquisition unit, used to acquire an operating temperature threshold of the heat pump and to acquire a critical temperature value corresponding to the critical energy efficiency value;

[0141] The first control unit is used to obtain a heat pump operating temperature interval with the operating temperature threshold and the critical temperature value as interval endpoints, and determine that the target heating mode is a single boiler mode when the current ambient temperature is not in the heat pump operating temperature interval or the comparison result indicates that the real-time energy efficiency value is less than the critical energy efficiency value.

[0142] Optionally, the temperature acquisition unit includes:

[0143] The temperature determination subunit is used to determine a critical temperature range corresponding to the critical energy efficiency value in the preset critical temperature data, and obtain the critical temperature value based on the minimum temperature value in the critical temperature range.

[0144] Optionally, the heating mode management module 20 further includes:

[0145] A heating amount determination unit, configured to determine the heating amount of the heat pump when the current ambient temperature is within the heat pump operating temperature range and the comparison result indicates that the real-time energy efficiency value is greater than or equal to the critical energy efficiency value;

[0146] The second control unit is used to determine that the target heating mode is a hybrid mode if the heating amount is less than a preset heat demand.

[0147] Optionally, the heating mode management module 20 further includes:

[0148] A third control unit is used to determine that the target heating mode is a single heat pump mode when the current ambient temperature is in the heat pump operating temperature range and the comparison result indicates that the real-time energy efficiency value is greater than or equal to the critical energy efficiency value, and if the heating amount is greater than or equal to the heat demand.

[0149] Optionally, the heating amount determination unit includes:

[0150] A unit heating amount determination subunit, used to obtain the hot water temperature, and obtain the unit heating amount based on the hot water temperature and the current ambient temperature;

[0151] The heating amount calculation subunit is used to obtain the working time of the heat pump and obtain the heating amount of the heat pump based on the unit heating amount and the working time.

[0152] Optionally, the first acquisition module 10 further includes:

[0153] Unit price acquisition unit, used to obtain real-time electricity price and real-time gas price, and obtain the heating efficiency of the boiler;

[0154] A critical energy efficiency value determination unit is used to determine a first heating cost based on the real-time electricity price, determine a second heating cost based on the real-time gas price and the heating efficiency, and obtain a critical energy efficiency value of the heat pump based on the first heating cost and the second heating cost.

[0155] Among them, the functional implementation of each module in the above-mentioned heating mode control system corresponds to each step in the above-mentioned heating mode control method embodiment, and its functions and implementation processes are no longer repeated here.

[0156] In addition, the present invention also proposes a heating mode control device, which includes: a memory, a processor, and a heating mode control program stored in the memory and executable on the processor, and when the heating mode control program is executed by the processor, the steps of the heating mode control method of the present invention as described above are implemented.

[0157] The specific embodiments of the heating mode control device of the present invention are basically the same as the embodiments of the heating mode control method described above, and will not be described in detail herein.

[0158] In addition, the present invention further proposes a computer storage medium on which a heating mode control program is stored. When the heating mode control program is executed by a processor, the steps of the heating mode control method of the present invention as described above are implemented.

[0159] The specific embodiments of the computer storage medium of the present invention are basically the same as the embodiments of the above-mentioned heating mode control method, and will not be described in detail here.

[0160] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0161] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0162] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a car computer, a smart phone, a computer, or a server, etc.) to execute the methods described in each embodiment of the present application.

[0163] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating mode control method, characterized in that: The heating mode control method comprises: Obtain the critical energy efficiency value and real-time energy efficiency value of the heat pump in the hybrid system, and obtain the current ambient temperature; The critical energy efficiency value and the real-time energy efficiency value are compared to obtain a comparison result, and a target heating mode is determined from various heating modes of the hybrid system based on the comparison result and the current ambient temperature, and the hybrid system is controlled to operate the target heating mode, wherein the heating modes of the hybrid system include a single boiler mode, a single heat pump mode and a hybrid mode.

2. The heating mode control method according to claim 1, characterized in that: The step of determining a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature includes: Obtaining an operating temperature threshold of the heat pump, and obtaining a critical temperature value corresponding to the critical energy efficiency value; The heat pump operating temperature interval is obtained by taking the operating temperature threshold and the critical temperature value as the interval endpoints. When the current ambient temperature is not in the heat pump operating temperature interval or the comparison result indicates that the real-time energy efficiency value is less than the critical energy efficiency value, the target heating mode is determined to be the single boiler mode.

3. The heating mode control method according to claim 2, characterized in that: The obtaining of the critical temperature value corresponding to the critical energy efficiency value includes: A critical temperature range corresponding to the critical energy efficiency value is determined in preset critical temperature data, and a critical temperature value is obtained based on a minimum temperature value in the critical temperature range.

4. The heating mode control method according to claim 2, characterized in that: The step of determining a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature includes: When the current ambient temperature is within the heat pump operating temperature range and the comparison result indicates that the real-time energy efficiency value is greater than or equal to the critical energy efficiency value, determining the heating capacity of the heat pump; If the heating amount is less than the preset heat demand, the target heating mode is determined to be the hybrid mode.

5. The heating mode control method according to claim 4, characterized in that: The step of determining a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature further includes: When the current ambient temperature is within the heat pump operating temperature range and the comparison result indicates that the real-time energy efficiency value is greater than or equal to the critical energy efficiency value, if the heating amount is greater than or equal to the heat demand, the target heating mode is determined to be the single heat pump mode.

6. The heating mode control method according to claim 4, characterized in that: The step of determining the heating capacity of the heat pump comprises: Acquire the hot water temperature, and obtain the unit heating capacity based on the hot water temperature and the current ambient temperature; The working time of the heat pump is acquired, and the heating capacity of the heat pump is obtained based on the unit heating capacity and the working time.

7. The heating mode control method according to any one of claims 1 to 6, characterized in that: The step of obtaining the critical energy efficiency value of the heat pump in the hybrid system includes: Obtain real-time electricity and gas prices, and obtain the heating efficiency of the boiler; A first heating cost is determined based on the real-time electricity price, a second heating cost is determined based on the real-time gas price and the heating efficiency, and a critical energy efficiency value of the heat pump is obtained based on the first heating cost and the second heating cost.

8. A heating mode control system, characterized in that: The heating mode control system comprises: A first acquisition module is used to obtain a critical energy efficiency value and a real-time energy efficiency value of a heat pump in a hybrid system, and obtain a current ambient temperature; A heating mode management module is used to compare the critical energy efficiency value and the real-time energy efficiency value to obtain a comparison result, and determine a target heating mode from various heating modes of the hybrid system based on the comparison result and the current ambient temperature, and control the hybrid system to operate the target heating mode, wherein the heating modes of the hybrid system include a single boiler mode, a single heat pump mode and a hybrid mode.

9. A heating mode control device, characterized in that: The heating mode control device includes: a memory, a processor, and a heating mode control program stored in the memory and executable on the processor. When the heating mode control program is executed by the processor, the steps of the heating mode control method according to any one of claims 1 to 7 are implemented.

10. A computer storage medium, characterized in that: The computer storage medium stores a heating mode control program, and when the heating mode control program is executed by the processor, the steps of the heating mode control method according to any one of claims 1 to 7 are implemented.

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