Heat supply control method and device of heat pump unit and electronic equipment

Abstract

This invention provides a heating control method, device, and electronic equipment for a heat pump unit. The method includes: acquiring the ambient temperature of the heat pump unit; determining a reference outlet water temperature based on the ambient temperature; acquiring the regional temperature and target temperature of the area to be heated; determining the corresponding regional temperature difference; determining the target temperature difference based on the regional temperature difference; determining a first outlet water temperature of the heat pump unit based on the target temperature difference and the reference outlet water temperature; comparing the first outlet water temperature with a preset temperature threshold to determine the target outlet water temperature of the heat pump unit; and controlling the heat pump unit to provide heating at the target outlet water temperature. In this method, the target outlet water temperature of the heat pump unit dynamically changes with the ambient temperature and the heating load of the area to be heated, ensuring that the heating output of the heat pump matches the actual needs of the area. The method is simple, has a fast response, effectively improves the reliability and adaptability of the unit, and optimizes the heating user experience.

Description

Technical Field

[0001] This invention relates to the field of heat pump control technology, and in particular to a heating control method, device and electronic equipment for a heat pump unit. Background Technology

[0002] In heating mode, the hot water produced by the heat pump unit is transported through pipes to the indoor heating terminals to provide room heating. In related technologies, the unit's outlet water temperature is often manually set. However, in scenarios such as when the unit is first started up or during a cold snap, the room temperature is far below the set heating temperature. The heating capacity corresponding to the fixed outlet water temperature cannot compensate for the room's heat deficit, resulting in slow room warming. Furthermore, when the room temperature has approached or reached the heating temperature, the unit continues to operate with high-temperature water, causing significant energy waste and negatively impacting the user experience. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a heating control method, device and electronic equipment for a heat pump unit, so as to achieve adaptive and precise control of heat pump heating and meet the user's heating experience.

[0004] In a first aspect, embodiments of the present invention provide a heating control method for a heat pump unit. The method includes: acquiring the ambient temperature of the heat pump unit; determining a reference outlet water temperature based on the ambient temperature; acquiring the area temperature of the area to be heated and the area target temperature of the area to be heated; determining the area temperature difference corresponding to the area to be heated; determining the target temperature difference based on the area temperature difference; determining a first outlet water temperature of the heat pump unit based on the target temperature difference and the reference outlet water temperature; comparing the first outlet water temperature with a preset temperature threshold to determine the target outlet water temperature of the heat pump unit; and controlling the heat pump unit to provide heating at the target outlet water temperature.

[0005] Furthermore, the process of periodically acquiring the regional temperature of the area to be heated, acquiring the ambient temperature of the heat pump unit, and determining the reference outlet water temperature based on the ambient temperature includes: acquiring the ambient temperature at specified time intervals within a single cycle; performing a fusion process on the ambient temperatures acquired within the cycle to obtain a temperature fusion result; and determining the reference outlet water temperature based on the temperature fusion result and a preset temperature curve; wherein the temperature curve indicates the correspondence between the temperature fusion result and the reference outlet water temperature.

[0006] Furthermore, the steps of obtaining the regional temperature and target temperature of the area to be heated, and determining the regional temperature difference corresponding to the area to be heated, include: collecting the regional temperature of the area to be heated through a preset temperature sensor; and determining the difference between the target temperature and the regional temperature of the area to be heated as the regional temperature difference corresponding to the area to be heated.

[0007] Furthermore, the aforementioned areas to be heated are managed by a pre-set area management system; the area management system is connected to the heat pump unit; the steps of obtaining the area temperature and the target area temperature of the area to be heated, and determining the area temperature difference corresponding to the area to be heated include: reading the area temperature difference corresponding to the area to be heated from the energy management system through a pre-set communication link; wherein, the area temperature difference is the difference between the target area temperature and the area temperature.

[0008] Furthermore, the aforementioned regional temperature difference is the difference between the regional target temperature and the regional temperature; the step of determining the target temperature difference based on the regional temperature difference includes: if the regional temperature difference is not greater than a preset threshold, determining the target temperature difference as a specified temperature difference value; if the regional temperature difference is greater than the preset threshold, determining the regional temperature difference as the target temperature difference.

[0009] Furthermore, the aforementioned areas to be heated include multiple areas; the step of determining the target temperature difference based on the regional temperature difference includes: selecting the regional temperature difference with the largest value from the regional temperature differences corresponding to the multiple areas to be heated as the target temperature difference.

[0010] Furthermore, the heating methods differ across the aforementioned areas awaiting heating; these methods include fan coil unit heating and radiator heating. Furthermore, the step of determining the first outlet water temperature of the heat pump unit based on the target temperature difference and the reference outlet water temperature includes: determining the first temperature difference through the target temperature difference and the preset temperature coefficient; wherein, the larger the temperature coefficient, the larger the first temperature difference; and determining the first outlet water temperature based on the first temperature difference and the reference outlet water temperature.

[0011] Furthermore, the preset temperature threshold includes a first lower limit temperature and a first upper limit temperature; the first upper limit temperature is higher than the first lower limit temperature; the step of comparing the first outlet water temperature with the preset temperature threshold to determine the target outlet water temperature of the heat pump unit includes: if the first outlet water temperature is not greater than the first upper limit temperature and not less than the first lower limit temperature, the first outlet water temperature is determined as the target outlet water temperature; if the first outlet water temperature is greater than the first upper limit temperature, the first upper limit temperature is determined as the target outlet water temperature; if the first outlet water temperature is less than the first lower limit temperature, the first lower limit temperature is determined as the target outlet water temperature.

[0012] Secondly, embodiments of the present invention provide a heating control device for a heat pump unit. The device includes: a first determining module, configured to acquire the ambient temperature of the heat pump unit and determine a reference outlet water temperature based on the ambient temperature; a second determining module, configured to acquire the area temperature of the area to be heated and the area target temperature of the area to be heated, and determine the area temperature difference corresponding to the area to be heated; and determine the target temperature difference based on the area temperature difference; and a first controlling module, configured to determine a first outlet water temperature of the heat pump unit based on the target temperature difference and the reference outlet water temperature; compare the first outlet water temperature with a preset temperature threshold to determine the target outlet water temperature of the heat pump unit, and control the heat pump unit to provide heating at the target outlet water temperature.

[0013] Thirdly, embodiments of the present invention provide an electronic device, including a processor and a memory, wherein the memory stores machine-executable instructions that can be executed by the processor, and the processor executes the machine-executable instructions to implement the above-described heat pump unit heating control method.

[0014] Fourthly, embodiments of the present invention provide a machine-readable storage medium storing machine-executable instructions. When the machine-executable instructions are invoked and executed by a processor, the machine-executable instructions cause the processor to implement the above-described heat pump unit heating control method.

[0015] The embodiments of the present invention bring the following beneficial effects: The aforementioned heat pump unit's heating control method, device, and electronic equipment include the following method: acquiring the ambient temperature of the heat pump unit; determining a reference outlet water temperature based on the ambient temperature; acquiring the area temperature of the area to be heated and the area target temperature of the area to be heated, and determining the area temperature difference corresponding to the area to be heated; determining the target temperature difference based on the area temperature difference; determining the first outlet water temperature of the heat pump unit based on the target temperature difference and the reference outlet water temperature; comparing the first outlet water temperature with a preset temperature threshold to determine the target outlet water temperature of the heat pump unit, and controlling the heat pump unit to provide heating at the target outlet water temperature.

[0016] In this method, the regional temperature difference is calculated by comparing the regional temperature of the area to be heated with the target regional temperature. Based on the ambient temperature of the heat pump unit and the corresponding regional temperature difference, the first outlet water temperature of the unit is determined. Finally, the target outlet water temperature is obtained by limiting the first outlet water temperature through a preset temperature threshold, and the heat pump unit is controlled to provide heat according to the target outlet water temperature. In this method, the target outlet water temperature of the heat pump unit is jointly regulated by the ambient temperature of the heat pump unit and the corresponding regional temperature difference of the area to be heated. It dynamically changes with the ambient temperature and the heating load of the area to be heated, ensuring that the heating output of the heat pump matches the actual needs of the area. This method is simple, has a fast response, effectively improves the reliability and adaptability of the unit, and optimizes the heating user experience.

[0017] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A flowchart of a heat pump unit heating control method provided in an embodiment of the present invention; Figure 2 A flowchart of another heating control method for a heat pump unit provided in an embodiment of the present invention; Figure 3 A schematic diagram of a heat pump unit heating control device provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Based on this, the heating control method, device and electronic equipment of the heat pump unit provided in the embodiments of the present invention can be widely used in various centralized heating systems such as air source heat pumps and water source heat pumps.

[0023] To facilitate understanding of this embodiment, a detailed description of a heat pump unit heating control method disclosed in this embodiment of the invention will be provided first. Please refer to [link / reference]. Figure 1 The methods include: Step S102: Obtain the ambient temperature of the heat pump unit and determine the reference outlet water temperature based on the ambient temperature.

[0024] The ambient temperature mentioned above refers to the ambient temperature at the installation location of the heat pump unit. In heating scenarios where the area to be heated is an indoor space, this ambient temperature is taken from the outdoors to reflect real-time outdoor climate conditions. The reference outlet water temperature mentioned above refers to the reference outlet water temperature matched to the ambient temperature. This reference outlet water temperature adapts to changes in ambient temperature; generally, the lower the ambient temperature, the higher the reference outlet water temperature.

[0025] In one approach, the data processing cycle for ambient temperature is matched with the data collection cycle for the regional temperature of the area to be heated, thereby achieving synchronous updates of the reference outlet water temperature, regional temperature difference, and target outlet water temperature. Dynamic adjustment of the outlet water temperature is achieved based on real-time updated environmental conditions and the heating load of the area to be heated.

[0026] To avoid frequent jumps in the reference outlet water temperature caused by sudden changes in ambient temperature, the ambient temperature is collected multiple times at set intervals within the regional temperature collection period. All ambient temperatures within the period are then fused to obtain a temperature fusion result. This temperature fusion result is matched with the time sequence of the regional temperature collected in the current period and used to calculate the reference outlet water temperature for this period.

[0027] Step S104: Obtain the regional temperature and target temperature of the area to be heated, and determine the regional temperature difference corresponding to the area to be heated; based on the regional temperature difference, determine the target temperature difference.

[0028] The target temperature for the aforementioned area is the desired heating temperature set by the user for the area to be heated. The temperature difference between the area refers to the difference between the target temperature and the actual area temperature. This target temperature difference is used to compensate for and correct the reference outlet temperature, and in combination with the reference outlet temperature, the target outlet temperature suitable for the indoor heating load is calculated.

[0029] In one approach, temperature sensors can be deployed to collect the regional temperature of the area to be heated in real time, and the corresponding regional temperature difference can be calculated.

[0030] In another approach, the area to be heated is managed by a pre-set area management system. The area management system can issue area temperature and target temperature data for the area to be heated. The heat pump unit can directly read parameters from the system to complete the area temperature difference calculation, or it can directly retrieve the area temperature difference value already calculated by the area management system.

[0031] After determining the temperature difference of the area to be heated, the target temperature difference is determined by comparing the temperature difference with a preset threshold and selecting between the specified temperature difference value and the actual temperature difference of the area. The preset threshold value can be 0 or other custom temperature limits, and the specified temperature difference value can also be 0 or other small values.

[0032] Understandably, in scenarios where the regional temperature difference is small and the heating load gap in the area to be heated is slight, using a fixed small value or zero value as the target temperature difference to participate in the calculation of the target outlet water temperature can prevent unnecessary rise in outlet water temperature leading to energy waste, and can also avoid frequent changes in unit supply water temperature caused by small disturbances in indoor temperature, thus optimizing the unit's heating stability. When the regional temperature difference exceeds the standard and the heat shortage in the area to be heated is significant, the actual regional temperature difference is used as the target temperature difference, and the heating temperature rise is compensated as needed to match the actual heating demand.

[0033] It should be noted that there can be one or more areas requiring heating. If there is only one area, the temperature difference between the area and the preset threshold are compared, and the actual temperature difference or the specified temperature difference is used as the target temperature difference. If there are multiple areas requiring heating, the maximum value among all area temperature differences can be selected first, and then this maximum value can be compared with the preset threshold. The maximum value or the specified temperature difference is selected as the target temperature difference, using the area with the highest heating demand as the control benchmark to ensure that the coldest area meets the heating standards.

[0034] Step S106: Based on the target temperature difference and the reference outlet water temperature, determine the first outlet water temperature of the heat pump unit; compare the first outlet water temperature with the preset temperature threshold to determine the target outlet water temperature of the heat pump unit, and control the heat pump unit to provide heat at the target outlet water temperature.

[0035] The aforementioned preset temperature threshold is used to limit the reasonable operating range of the heat pump unit's outlet water temperature, including a first lower limit temperature and a first upper limit temperature, to constrain the target outlet water temperature from exceeding the safe heating range.

[0036] In practice, the target temperature difference is multiplied by a preset temperature coefficient to obtain a temperature value. The larger the temperature coefficient, the higher the calculated temperature value. This temperature value is then superimposed on the reference outlet water temperature to obtain the first outlet water temperature.

[0037] If the first outlet water temperature is higher than the first upper limit temperature, the first upper limit temperature is taken as the target outlet water temperature; if the first outlet water temperature is lower than the first lower limit temperature, the first lower limit temperature is taken as the target outlet water temperature, thereby limiting the target outlet water temperature to be within the safe heating range; when the first outlet water temperature is between the first lower limit temperature and the first upper limit temperature, the first outlet water temperature is directly determined as the target outlet water temperature.

[0038] Ultimately, the heat pump unit is controlled to carry out heating operations according to the determined target outlet water temperature.

[0039] Existing temperature control solutions often employ complex algorithms such as model prediction and fuzzy control, which result in cumbersome parameter calibration and high controller computing power overhead. This application completes temperature control calculations solely based on the temperature difference between the unit's ambient temperature and the area to be heated. The algorithm is simplified, requires fewer calibration parameters, and has low hardware computing power consumption, making it easy to implement in mass production on low-cost control hardware.

[0040] This approach enables the unit to achieve precise temperature deviation compensation, effective avoidance of ineffective compensation, smooth cross-system linkage, and safe and stable operation under different ambient temperatures and complex multi-zone heating system conditions. This significantly improves the operational stability, heating comfort, and energy efficiency of the heat pump unit, avoiding problems such as rigid compensation, excessive energy consumption, uneven comfort, and system instability in existing technologies. It adapts to the actual needs of various heating scenarios and enhances the product's market competitiveness.

[0041] The above-mentioned heat pump unit heating control method involves: acquiring the ambient temperature of the heat pump unit; determining a reference outlet water temperature based on the ambient temperature; acquiring the area temperature and target temperature of the area to be heated; determining the corresponding area temperature difference; determining the target temperature difference based on the area temperature difference; determining the first outlet water temperature of the heat pump unit based on the target temperature difference and the reference outlet water temperature; comparing the first outlet water temperature with a preset temperature threshold to determine the target outlet water temperature of the heat pump unit; and controlling the heat pump unit to provide heating at the target outlet water temperature.

[0042] In this method, the regional temperature difference is calculated by comparing the regional temperature of the area to be heated with the target regional temperature. Based on the ambient temperature of the heat pump unit and the corresponding regional temperature difference, the first outlet water temperature of the unit is determined. Finally, the target outlet water temperature is obtained by limiting the first outlet water temperature through a preset temperature threshold, and the heat pump unit is controlled to provide heat according to the target outlet water temperature. In this method, the target outlet water temperature of the heat pump unit is jointly regulated by the ambient temperature of the heat pump unit and the corresponding regional temperature difference of the area to be heated. It dynamically changes with the ambient temperature and the heating load of the area to be heated, ensuring that the heating output of the heat pump matches the actual needs of the area. This method is simple, has a fast response, effectively improves the reliability and adaptability of the unit, and optimizes the heating user experience.

[0043] In one approach, the data processing cycle for ambient temperature is matched with the acquisition cycle for the regional temperature of the area to be heated, thereby achieving synchronous updates of the reference outlet water temperature, regional temperature difference, and target outlet water temperature. Dynamic adjustment of the outlet water temperature is achieved based on real-time updates of environmental conditions and the heating load of the area to be heated. To avoid frequent jumps in the reference outlet water temperature caused by sudden changes in ambient temperature, ambient temperature is collected multiple times at set intervals within the regional temperature acquisition cycle. All ambient temperatures within the cycle are then fused to obtain a temperature fusion result. This temperature fusion result is matched with the time sequence of the regional temperatures collected in the same cycle and used to calculate the reference outlet water temperature for this cycle.

[0044] Specifically, within a single cycle, ambient temperature is collected at specified time intervals; the ambient temperatures collected within the cycle are fused to obtain a temperature fusion result; based on the temperature fusion result and a preset temperature curve, a reference outlet water temperature is determined; wherein, the temperature curve indicates the correspondence between the temperature fusion result and the reference outlet water temperature.

[0045] The temperature curves mentioned above can be in the form of linear relationships or nonlinear curves, both of which define the correspondence between the temperature fusion result and the reference outlet water temperature; taking the linear temperature curve as an example, the curve parameters can be flexibly configured according to the unit operating conditions and heating requirements.

[0046] For example, if the temperature acquisition period for the area is set to 30 minutes, the ambient temperature can be acquired every 5 minutes, for a total of 6 acquisitions over 30 minutes. The average of these 6 ambient temperatures is then calculated as the temperature fusion result for that period. This temperature fusion result is matched with the time sequence of the area temperatures acquired in the same period. Finally, the temperature fusion result is input into the formula corresponding to the preset temperature curve to obtain the reference outlet water temperature for the current period.

[0047] Finally, based on the reference outlet water temperature corresponding to the current cycle and the target temperature difference determined by the regional temperature difference of the heating area corresponding to the current cycle, the first outlet water temperature is calculated step by step and the target outlet water temperature is determined after being limited by the upper and lower temperature limits, thus completing the closed-loop dynamic control of the unit's water supply temperature in a single cycle.

[0048] The following embodiments provide a specific implementation method for determining the regional temperature difference corresponding to the area to be heated.

[0049] In one approach, the regional temperature of the area to be heated is collected by a preset temperature sensor; the difference between the target regional temperature and the regional temperature of the area to be heated is determined as the regional temperature difference corresponding to the area to be heated.

[0050] In other words, the heat pump unit collects the regional temperature of the area to be heated through a pre-set temperature sensor, and uses the difference between the target regional temperature and the regional temperature as the regional temperature difference corresponding to the area to be heated.

[0051] In one approach, the area to be heated is managed by a pre-set area management system; the area management system is connected to the heat pump unit; the area temperature difference corresponding to the area to be heated is read from the energy management system through a pre-set communication link; wherein, the area temperature difference is the difference between the target temperature of the area and the area temperature.

[0052] The aforementioned preset communication links can be established based on an agreed communication address; the regional management system can specifically be an EMS energy management system.

[0053] In one specific implementation, the regional management system can collect real-time regional temperatures of the areas under its control using on-site temperature measurement equipment, and calculate the corresponding regional temperature difference by combining this with the user-preset regional target temperature. The heat pump unit obtains the calculated regional temperature difference data from the regional management system by connecting to a pre-set communication link corresponding to an agreed communication address.

[0054] In other implementation methods, the regional management system oversees multiple areas awaiting heating. The system can also statistically analyze and organize the temperature differences for each area, resulting in a single regional temperature difference value. The heat pump unit can then acquire this value via a pre-defined communication link to generate the target temperature difference required for subsequent calculations. This calculated regional temperature difference value can be the largest among multiple regional temperature differences, or it can be a weighted calculation model built based on parameters such as the area of ​​each area awaiting heating, heating load weight, and room usage attributes, using a weighted average to calculate the comprehensive equivalent temperature difference.

[0055] In one approach, after determining the temperature difference of the area to be heated, if the temperature difference is not greater than a preset threshold, the target temperature difference is determined as the specified temperature difference value; if the temperature difference is greater than the preset threshold, the temperature difference is determined as the target temperature difference.

[0056] The preset threshold can be 0 or other custom temperature limits, and the specified temperature difference can also be 0 or other small values.

[0057] Understandably, in scenarios where the regional temperature difference is small and the heating load gap in the area awaiting heating is minimal, using a small or zero value as the target temperature difference in the calculation of the target outlet water temperature can prevent unnecessary increases in outlet water temperature leading to energy waste, and can also avoid frequent changes in unit supply water temperature caused by small disturbances in indoor temperature, thus optimizing the unit's heating stability. Conversely, when the regional temperature difference exceeds the standard and the heating load gap in the area awaiting heating is significant, the actual regional temperature difference is used as the target temperature difference, compensating for the heating temperature rise as needed to match actual heating demand. This fundamentally avoids ineffective compensation and reduces energy consumption.

[0058] In one embodiment, when the temperature difference between the areas to be heated is greater than or equal to the target temperature, the target temperature difference is forced to be 0, thereby avoiding ineffective compensation from the source and reducing energy consumption.

[0059] In one approach, the areas to be heated include multiple areas; from the area temperature differences corresponding to the multiple areas to be heated, the largest area temperature difference is selected; if the largest area temperature difference is not greater than a preset threshold, the target temperature difference is determined as the specified temperature difference value; if the largest area temperature difference is greater than the preset threshold, the largest area temperature difference is determined as the target temperature difference.

[0060] For example, using a preset threshold and a specified temperature difference value both set to 0: When there are multiple areas to be heated, the regional temperature and target temperature of each area are obtained, and the regional temperature difference corresponding to each area is calculated. Then, the largest regional temperature difference is selected from the multiple regional temperature differences. If the largest regional temperature difference is ≤ 0, the target temperature difference is determined to be zero; if the largest regional temperature difference is > 0, the largest regional temperature difference is determined as the target temperature difference.

[0061] This method selects the area with the largest regional temperature difference and the highest heating demand as the basis for water temperature compensation, prioritizing the heating needs of the coldest area and effectively improving the overall heating comfort of the house. Based on the strategy of selecting the maximum regional temperature difference, the heat pump unit can adaptively match peak heating loads, improving the industry pain points of thermal imbalance and uneven heating in multi-zone heating systems.

[0062] In one approach, multiple areas awaiting heating may employ different heating methods; these methods include fan coil unit heating and radiator heating.

[0063] Heating method refers to the type of heating terminal equipment, mainly divided into two categories: fan coil heating and radiator heating. Radiators are suitable for high-temperature water supply conditions, while fan coil units are suitable for low-temperature water supply conditions.

[0064] The following embodiments provide a specific implementation method for determining the target outlet water temperature.

[0065] First, the first temperature is determined by the target temperature difference and the preset temperature coefficient; the larger the temperature coefficient, the larger the first temperature; the first temperature is then added to the reference outlet water temperature to obtain the first outlet water temperature.

[0066] The temperature coefficient mentioned above can be set by the user via a wired controller. For example, the value range can be set to 0~1.0, with typical values ​​of 0.5 or 1.0. The larger the temperature coefficient value, the higher the initial temperature, the stronger the temperature compensation, and the faster the temperature in the area to be heated reaches the target temperature. The smaller the temperature coefficient value, the lower the initial temperature, the weaker the temperature compensation, and the more emphasis is placed on energy saving. Users can flexibly adjust the value according to their own comfort and energy-saving needs.

[0067] In one example, a formula for determining the first outlet water temperature is provided: T = T1 + ΔT C; where T is the first outlet water temperature; T1 is the reference outlet water temperature; ΔT is the target temperature difference; and C is the temperature coefficient.

[0068] Furthermore, after determining the first outlet water temperature, the first outlet water temperature is compared with a preset temperature threshold to determine the target outlet water temperature of the heat pump unit: Specifically, the preset temperature threshold includes a first lower limit temperature and a first upper limit temperature; the first upper limit temperature is higher than the first lower limit temperature; if the first outlet water temperature is not greater than the first upper limit temperature and not less than the first lower limit temperature, the first outlet water temperature is determined as the target outlet water temperature; if the first outlet water temperature is greater than the first upper limit temperature, the first upper limit temperature is determined as the target outlet water temperature; if the first outlet water temperature is less than the first lower limit temperature, the first lower limit temperature is determined as the target outlet water temperature.

[0069] The aforementioned preset temperature threshold is used to limit the reasonable operating range of the heat pump unit's outlet water temperature, including a first lower limit temperature and a first upper limit temperature, to constrain the target outlet water temperature from exceeding the safe heating range.

[0070] If the first outlet water temperature is higher than the first upper limit temperature, the first upper limit temperature is taken as the target outlet water temperature; if the first outlet water temperature is lower than the first lower limit temperature, the first lower limit temperature is taken as the target outlet water temperature, thereby limiting the target outlet water temperature to be within the safe heating range; when the first outlet water temperature is between the first lower limit temperature and the first upper limit temperature, the first outlet water temperature is directly determined as the target outlet water temperature.

[0071] By setting a preset temperature threshold to limit and control the first outlet water temperature, it is possible to avoid the outlet water temperature being set too high under extreme low temperature conditions, which could damage the components due to overheating and overload of the unit. It is also possible to prevent the outlet water temperature from being too low when the ambient temperature is too high, which could lead to frequent start-stop of the heat pump unit, low-temperature inefficient operation, or even evaporator frosting failure. This balances the safety of equipment operation and the stability of the unit's heating operation.

[0072] In one approach, the regional configuration parameters are obtained; based on the regional configuration parameters, the areas to be heated are determined.

[0073] Here, multiple zone configuration parameters (ZoneCfg) can be preset with their values. Based on these preset values, the corresponding heating zone and heating control scenario can be determined. Multiple sets of zone configuration parameter calibration values ​​can be predefined. The heat pump unit can distinguish the number of heating zones and the operating scenario based on the parameter values, and match the target temperature difference calculation rules specific to that scenario. Finally, the target temperature difference can be solved according to the corresponding algorithm.

[0074] Specifically, in response to the first configuration parameter of the area configuration parameter, the area to be heated is determined as the first area to be heated; in response to the second configuration parameter of the area configuration parameter, the area to be heated is determined as the second area to be heated; wherein, the heating methods of the first area to be heated and the second area to be heated are different; in response to the third configuration parameter of the area configuration parameter, the area to be heated is determined as the third area to be heated; wherein, the third area to be heated includes multiple areas; in response to the fourth configuration parameter of the area configuration parameter, the area to be heated is determined as the fourth area to be heated; wherein, the fourth area to be heated is managed by a pre-set area management system.

[0075] For example, with the zone configuration parameter ZoneCfg=1: the heat pump unit only regulates heating for a single first zone to be heated. In this case, the zone temperature difference is the difference between the zone target temperature of the first zone to be heated and the zone temperature of the first zone to be heated.

[0076] Zone configuration parameter ZoneCfg=2: The heat pump unit only regulates heating for a single second heating zone. At this time, the zone temperature difference is the difference between the zone target temperature and the zone temperature of the second heating zone. The heating method of the second heating zone can be different from that of the first heating zone, such as one being fan coil heating and the other being radiator heating.

[0077] With the zone configuration parameter ZoneCfg=3, the heat pump unit regulates the heating of multiple independent zones to be heated. For example, if the first zone to be heated and the second zone to be heated are heated at the same time, the temperature difference of each zone to be heated is calculated separately. As mentioned above, the maximum value of the temperature difference between the two zones needs to be selected to participate in the calculation of the target temperature difference.

[0078] When the zone configuration parameter ZoneCfg is one of 4, 5, or 6, it means that the zone to be heated is controlled by a pre-set zone management system. The heat pump unit can obtain the calculated zone temperature difference data from the zone management system by connecting to the preset communication link corresponding to the agreed communication address.

[0079] After determining the regional temperature difference corresponding to the area to be heated using the above method, the target temperature difference is determined by comparing the regional temperature difference with a preset threshold and selecting from the specified temperature difference value and the regional temperature difference. Finally, based on the ambient temperature of the heat pump unit and the regional temperature difference corresponding to the area to be heated, the first outlet water temperature of the unit is determined. The target outlet water temperature is obtained by limiting the first outlet water temperature through a preset temperature threshold, and the heat pump unit is controlled to provide heating according to the target outlet water temperature.

[0080] In this approach, the unit can accurately identify the temperature difference between areas to be heated in different scenarios, including single-zone, dual-zone, and area management system linkage. When the temperature difference between areas is lower than the target temperature, compensation is initiated in a timely manner, and ineffective compensation is stopped when the temperature difference between areas meets the target (e.g., temperature difference ≤ 0). At the same time, the maximum deviation priority compensation logic in dual-zone mode ensures consistent heating comfort across multiple areas. Global compensation optimization in centralized management scenarios is achieved through communication address-level data linkage. The amplitude is limited by preset temperature thresholds to avoid equipment failure and energy waste caused by abnormal target outlet water temperature.

[0081] Specifically, in one embodiment, the heating control method of the heat pump unit is described in detail, and the control logic flow is as follows: Figure 2 As shown, the entire process cycles around a fixed period to refresh the reference outlet water temperature: 1) Initial parameter reading and compensation master switch determination; After the program starts, it first reads the identification parameters ModeSet and FbEnable. If ModeSet=0 and FbEnable=0, the target temperature difference is directly set to 0, and the target outlet water temperature is set to the reference outlet water temperature. In other words, the dynamic compensation logic based on the regional temperature difference of the areas to be heated is turned off, and the heat pump unit no longer adjusts the outlet water temperature according to the regional temperature difference of each area to be heated. The target outlet water temperature is fixed and operates using the reference outlet water temperature. If ModeSet≠0 and FbEnable≠0, then proceed to step 2).

[0082] 2) Determine the temperature difference of each area based on the zone configuration parameter ZoneCfg for each scenario; ZoneCfg=1, the area to be heated is the first area to be heated: the area temperature difference ΔT1 is the difference between the target temperature of the first area to be heated and the area temperature of the first area to be heated; ZoneCfg=2, the area to be heated is the second area to be heated: the area temperature difference ΔT2 is the difference between the target temperature of the second area to be heated and the area temperature of the second area to be heated; ZoneCfg=3: The area to be heated is the third area to be heated. There are multiple third areas to be heated. For example, if the third area to be heated includes the first area to be heated and the second area to be heated, then the area temperature difference ΔT3=max(ΔT1,ΔT2). When ZoneCfg=4, 5, or 6, the heat pump unit can obtain the calculated zone temperature difference ΔT4 from the zone management system by connecting to the preset communication link corresponding to the agreed communication address; furthermore, when EMS_En=0, ΔT4 is forced to be 0, and the temperature compensation corresponding to the zone temperature difference is turned off.

[0083] 3) Determine the target temperature difference based on the regional temperature difference; The calculated regional temperature difference ΔT is determined to be positive or negative: when ΔT>0, the target temperature difference = ΔT × temperature coefficient; when ΔT≤0, the target temperature difference is directly assigned the value of 0.

[0084] 4) Calculation of target effluent temperature and upper and lower limits; The first outlet water temperature is obtained by superimposing the reference outlet water temperature on the target temperature difference. Then, the target outlet water temperature is constrained within a safe operating range by setting a preset temperature threshold.

[0085] Finally, the target outlet water temperature after being limited by the closed-loop output is sent to the heat source control module of the heat pump unit. After completing a single temperature control calculation, it waits for the next calculation cycle, keeping in sync with the update sequence of the reference outlet water temperature, and iteratively realizing dynamic feedforward compensation.

[0086] The regional temperature difference is calculated by comparing the regional temperature of the area to be heated with the target regional temperature. Based on the ambient temperature of the heat pump unit and the corresponding regional temperature difference, the first outlet water temperature of the unit is determined. Finally, the target outlet water temperature is obtained by limiting the first outlet water temperature through a preset temperature threshold, and the heat pump unit is controlled to provide heat according to the target outlet water temperature. The algorithm is simple, has low computational cost, can shorten room heating time, and has excellent heating efficiency. Furthermore, compensation is only applied for positive temperature differences; once the room temperature reaches the target, water temperature compensation is canceled, effectively suppressing room temperature overshoot and improving temperature control stability.

[0087] For scenarios involving multiple areas awaiting heating, maximum temperature difference control is employed to prioritize the load of the coldest areas, improving thermal imbalance across multiple rooms and optimizing overall heating comfort. Furthermore, through parameter configuration, it is compatible with various operating conditions including single-zone, multi-zone, and EMS remote access, and can connect to energy management systems, demonstrating excellent equipment integration versatility. Finally, compensation outlet water temperature settings with upper and lower limits protect against overheating faults while reducing unnecessary high-temperature operation, achieving a balance between equipment safety and energy conservation.

[0088] For the heating control method embodiment corresponding to the above heat pump unit, see [link to embodiment]. Figure 3 The diagram shows a structural schematic of a heating control device for a heat pump unit. The device includes: The first determining module 302 is used to obtain the ambient temperature where the heat pump unit is located, and determine the reference outlet water temperature based on the ambient temperature. The second determining module 304 is used to obtain the area temperature of the area to be heated and the target area temperature of the area to be heated, determine the area temperature difference corresponding to the area to be heated, and determine the target temperature difference based on the area temperature difference. The first control module 306 is used to determine the first outlet water temperature of the heat pump unit based on the target temperature difference and the reference outlet water temperature; compare the first outlet water temperature with the preset temperature threshold to determine the target outlet water temperature of the heat pump unit; and control the heat pump unit to provide heat at the target outlet water temperature.

[0089] In this method, the regional temperature difference is calculated by comparing the regional temperature of the area to be heated with the target regional temperature. Based on the ambient temperature of the heat pump unit and the corresponding regional temperature difference, the first outlet water temperature of the unit is determined. Finally, the target outlet water temperature is obtained by limiting the first outlet water temperature through a preset temperature threshold, and the heat pump unit is controlled to provide heat according to the target outlet water temperature. In this method, the target outlet water temperature of the heat pump unit is jointly regulated by the ambient temperature of the heat pump unit and the corresponding regional temperature difference of the area to be heated. It dynamically changes with the ambient temperature and the heating load of the area to be heated, ensuring that the heating output of the heat pump matches the actual needs of the area. This method is simple, has a fast response, effectively improves the reliability and adaptability of the unit, and optimizes the heating user experience.

[0090] The temperature of the area to be heated is acquired periodically; the first determining module is used to collect the ambient temperature at specified time intervals within a single cycle; multiple ambient temperatures collected within the cycle are fused to obtain a temperature fusion result; based on the temperature fusion result and a preset temperature curve, a reference outlet water temperature is determined; wherein, the temperature curve indicates the correspondence between the temperature fusion result and the reference outlet water temperature.

[0091] The second determining module is used to collect the area temperature of the area to be heated by a preset temperature sensor; and to determine the difference between the area target temperature and the area temperature of the area to be heated as the area temperature difference corresponding to the area to be heated.

[0092] The aforementioned areas to be heated are managed by a pre-set area management system; the area management system is connected to the heat pump unit; the aforementioned second determining module is used to read the area temperature difference corresponding to the area to be heated from the energy management system through a preset communication link; wherein, the area temperature difference is the difference between the area target temperature and the area temperature.

[0093] The aforementioned regional temperature difference is the difference between the regional target temperature and the regional temperature; the aforementioned second determining module is used to determine the target temperature difference as the specified temperature difference value if the regional temperature difference is not greater than a preset threshold; and to determine the regional temperature difference as the target temperature difference if the regional temperature difference is greater than the preset threshold.

[0094] The aforementioned areas to be heated include multiple areas; the aforementioned second determining module is used to select the largest area temperature difference from the area temperature differences corresponding to the multiple areas to be heated; if the largest area temperature difference is not greater than a preset threshold, the target temperature difference is determined as the specified temperature difference value; if the largest area temperature difference is greater than the preset threshold, the largest area temperature difference is determined as the target temperature difference.

[0095] The heating methods for the aforementioned areas that are awaiting heating are different; the heating methods include fan coil heating and radiator heating.

[0096] The aforementioned first control module is used to determine a first temperature based on the target temperature difference and a preset temperature coefficient; wherein, the larger the temperature coefficient, the larger the first temperature; and to obtain the first outlet water temperature by adding the first temperature to the reference outlet water temperature.

[0097] The aforementioned preset temperature threshold includes a first lower limit temperature and a first upper limit temperature; the first upper limit temperature is higher than the first lower limit temperature; the aforementioned first control module is used to determine the first outlet temperature as the target outlet temperature if the first outlet temperature is not greater than the first upper limit temperature and not less than the first lower limit temperature; if the first outlet temperature is greater than the first upper limit temperature, the first upper limit temperature is determined as the target outlet temperature; if the first outlet temperature is less than the first lower limit temperature, the first lower limit temperature is determined as the target outlet temperature.

[0098] The aforementioned device also includes a third determining module, used to acquire regional configuration parameters; and based on the regional configuration parameters, to determine the region to be heated.

[0099] The aforementioned third determining module is used to determine the area to be heated as a first area to be heated in response to the area configuration parameter being a first configuration parameter; to determine the area to be heated as a second area to be heated in response to the area configuration parameter being a second configuration parameter; wherein the heating methods of the first area to be heated and the second area to be heated are different; to determine the area to be heated as a third area to be heated in response to the area configuration parameter being a third configuration parameter; wherein the third area to be heated includes multiple areas; and to determine the area to be heated as a fourth area to be heated in response to the area configuration parameter being a fourth configuration parameter; wherein the fourth area to be heated is managed by a preset area management system.

[0100] This embodiment also provides an electronic device, including a processor and a memory. The memory stores machine-executable instructions that can be executed by the processor. The processor executes the machine-executable instructions to implement the heating control method of the heat pump unit described above. This electronic device can be a server or a terminal device.

[0101] See Figure 4 As shown, the electronic device includes a processor 100 and a memory 101. The memory 101 stores machine-executable instructions that can be executed by the processor 100. The processor 100 executes the machine-executable instructions to implement the heating control method of the heat pump unit described above.

[0102] Furthermore, Figure 4 The electronic device shown also includes a bus 102 and a communication interface 103, with the processor 100, the communication interface 103 and the memory 101 connected via the bus 102.

[0103] The memory 101 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 103 (which can be wired or wireless), such as the Internet, wide area network, local area network, metropolitan area network, etc. The bus 102 may be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0104] Processor 100 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 100 or by instructions in software form. Processor 100 may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can reside in a readily available storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory 101, and the processor 100 reads the information from memory 101 and, in conjunction with its hardware, completes the steps of the method described in the foregoing embodiments.

[0105] This embodiment also provides a machine-readable storage medium storing machine-executable instructions. When the machine-executable instructions are called and executed by a processor, the machine-executable instructions cause the processor to implement the above-described heat pump unit heating control method.

[0106] The computer program product of the heat pump unit heating control method, device, equipment and storage medium provided in the embodiments of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods described in the preceding method embodiments. For specific implementation, please refer to the method embodiments, which will not be repeated here.

[0107] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and apparatus described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0108] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0109] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0110] Finally, it should be noted that the above embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A heating control method for a heat pump unit, characterized in that, The method includes: Obtain the ambient temperature where the heat pump unit is located, and determine the reference outlet water temperature based on the ambient temperature; Obtain the regional temperature of the area to be heated and the regional target temperature of the area to be heated, and determine the regional temperature difference corresponding to the area to be heated; based on the regional temperature difference, determine the target temperature difference; Based on the target temperature difference and the reference outlet water temperature, the first outlet water temperature of the heat pump unit is determined; the first outlet water temperature is compared with a preset temperature threshold to determine the target outlet water temperature of the heat pump unit, and the heat pump unit is controlled to supply heat at the target outlet water temperature.

2. The method according to claim 1, characterized in that, The temperature of the area to be heated is periodically acquired. The step of obtaining the ambient temperature of the heat pump unit and determining the reference outlet water temperature based on the ambient temperature includes: Within a single cycle, the ambient temperature is collected at specified time intervals. Multiple ambient temperatures collected within the period are fused to obtain a temperature fusion result; Based on the temperature fusion result and the preset temperature curve, a reference outlet water temperature is determined; wherein, the temperature curve indicates the correspondence between the temperature fusion result and the reference outlet water temperature.

3. The method according to claim 1, characterized in that, The step of obtaining the regional temperature of the area to be heated and the regional target temperature of the area to be heated, and determining the regional temperature difference corresponding to the area to be heated, includes: The regional temperature of the area to be heated is collected by a preset temperature sensor. The difference between the target temperature of the area to be heated and the temperature of the area is determined as the area temperature difference corresponding to the area to be heated.

4. The method according to claim 1, characterized in that, The area to be heated is managed by a pre-set area management system; the area management system is communicatively connected to the heat pump unit. The step of obtaining the regional temperature of the area to be heated and the regional target temperature of the area to be heated, and determining the regional temperature difference corresponding to the area to be heated, includes: The temperature difference between the areas to be heated is read from the energy management system via a preset communication link; wherein the temperature difference between the areas is the difference between the target temperature of the area and the temperature of the area.

5. The method according to claim 1, characterized in that, The regional temperature difference is the difference between the target temperature of the region and the temperature of the region. The step of determining the target temperature difference based on the regional temperature difference includes: If the temperature difference in the region is not greater than a preset threshold, the target temperature difference is determined to be the specified temperature difference value. If the temperature difference in the region is greater than a preset threshold, the temperature difference in the region is determined as the target temperature difference.

6. The method according to claim 1, characterized in that, The areas to be heated include multiple areas; the step of determining the target temperature difference based on the temperature difference between the areas includes: Select the largest regional temperature difference from the regional temperature differences corresponding to the multiple regions to be heated; If the maximum regional temperature difference is not greater than a preset threshold, the target temperature difference is determined to be the specified temperature difference value. If the maximum regional temperature difference is greater than the preset threshold, the maximum regional temperature difference is determined as the target temperature difference.

7. The method according to claim 6, characterized in that, The heating methods for the various areas to be heated are different; the heating methods include fan coil heating and radiator heating.

8. The method according to claim 1, characterized in that, The step of determining the first outlet water temperature of the heat pump unit based on the target temperature difference and the reference outlet water temperature includes: A first temperature is determined by the target temperature difference and a preset temperature coefficient; wherein, the larger the temperature coefficient, the larger the first temperature. The first temperature is obtained by adding the first temperature to the reference outlet water temperature.

9. The method according to claim 1, characterized in that, The preset temperature threshold includes a first lower limit temperature and a first upper limit temperature; the first upper limit temperature is higher than the first lower limit temperature. The step of comparing the first outlet water temperature with a preset temperature threshold to determine the target outlet water temperature of the heat pump unit includes: If the first outlet water temperature is not greater than the first upper limit temperature and the first outlet water temperature is not less than the first lower limit temperature, the first outlet water temperature is determined as the target outlet water temperature; If the first outlet water temperature is greater than the first upper limit temperature, the first upper limit temperature is determined as the target outlet water temperature; If the first outlet water temperature is lower than the first lower limit temperature, the first lower limit temperature is determined as the target outlet water temperature.

10. The method according to claim 1, characterized in that, Before the steps of obtaining the area temperature of the area to be heated and the target area temperature of the area to be heated, the method further includes: Get region configuration parameters; Based on the regional configuration parameters, the areas to be heated are determined.

11. The method according to claim 1, characterized in that, The step of determining the area to be heated based on the area configuration parameters includes: In response to the area configuration parameter being the first configuration parameter, the area to be heated is determined as the first area to be heated; In response to the area configuration parameter being the second configuration parameter, the area to be heated is determined to be the second area to be heated; wherein the heating methods of the first area to be heated and the second area to be heated are different; In response to the area configuration parameter being a third configuration parameter, the area to be heated is determined as a third area to be heated; wherein, the third area to be heated includes multiple areas; In response to the area configuration parameter being the fourth configuration parameter, the area to be heated is determined as the fourth area to be heated; wherein, the fourth area to be heated is managed by a preset area management system.

12. A heating control device for a heat pump unit, characterized in that, The device includes: The first determining module is used to obtain the ambient temperature where the heat pump unit is located, and determine the reference outlet water temperature based on the ambient temperature. The second determining module is used to obtain the regional temperature of the area to be heated and the regional target temperature of the area to be heated, determine the regional temperature difference corresponding to the area to be heated, and determine the target temperature difference based on the regional temperature difference. The first control module is used to determine the first outlet water temperature of the heat pump unit based on the target temperature difference and the reference outlet water temperature; compare the first outlet water temperature with a preset temperature threshold to determine the target outlet water temperature of the heat pump unit; and control the heat pump unit to provide heat at the target outlet water temperature.

13. An electronic device, characterized in that, It includes a processor and a memory, the memory storing machine-executable instructions that can be executed by the processor, the processor executing the machine-executable instructions to implement the heating control method of the heat pump unit according to any one of claims 1-11.

14. A machine-readable storage medium, characterized in that, The machine-readable storage medium stores machine-executable instructions, which, when invoked and executed by a processor, cause the processor to implement the heating control method for the heat pump unit according to any one of claims 1-11.

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