Heat pump control method, device and equipment based on iteration and storage medium

Abstract

The invention relates to the technical field of heat pump control, and discloses a heat pump control method, device and equipment based on iteration and a storage medium, which are used for shortening the self-adaptive adjustment time of a heat pump and avoiding low comprehensive energy efficiency of the heat pump due to an overlong self-adaptive adjustment stage in a frequent start and stop scene. The heat pump control method based on iteration comprises the steps that when a heat pump is in a starting stage, multiple current heat pump working condition parameters are obtained; according to the current heat pump working condition parameters, whether a first optimal operation record corresponding to the first target heat pump working condition interval is stored in a preset heat pump performance monitoring table or not is determined, and a judgment result is obtained; determining a starting parameter value corresponding to each heat pump control parameter according to a judgment result; and controlling the heat pump to operate according to the starting parameter value corresponding to each heat pump control parameter.

Description

Technical Field

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

[0002] A heat pump is a device that uses a reverse Carnot cycle to convert electrical energy into heat energy. The conversion efficiency in heating mode is usually expressed as the coefficient of performance (COP), while the conversion efficiency in cooling mode is usually expressed as the energy efficiency ratio (EER).

[0003] A heat pump's heating cycle includes a startup process, an initialization process, an adaptive adjustment process, a steady-state process, and a shutdown process. During peak usage seasons, heat pumps are mostly in a stable heating state and do not shut down. During off-seasons, heat pumps often have excess capacity and are more likely to reach the constant temperature shutdown condition, resulting in multiple shutdowns and startups. Conventional heat pumps typically use fixed startup parameters as the initial state during startup and initialization, allowing the heat pump to gradually reach its optimal state through adaptive adjustment.

[0004] Traditional heat pump control methods start with fixed startup parameters. However, the optimal state parameters often differ under various complex heat pump operating conditions. This means that when the heat pump is started and initialized with fixed startup parameters, it needs a long time to adaptively adjust to reach a steady state. During the adaptive adjustment process, the heat pump's conversion efficiency remains in a low range, resulting in reduced overall energy efficiency in scenarios with frequent start-stop operations. Summary of the Invention

[0005] This application provides an iterative heat pump control method, apparatus, device, and storage medium to address the problems of traditional heat pump initialization with fixed start-up parameters, which results in excessively long adaptive adjustment time, low conversion efficiency of the heat pump during the adaptive adjustment process, and low overall energy efficiency of the heat pump in frequent start-stop scenarios.

[0006] The first aspect of this application provides an iterative heat pump control method, including: when the heat pump is in the startup phase, acquiring multiple current heat pump operating parameters;

[0007] Based on the multiple current heat pump operating parameters, determine whether there is a first optimal operating record corresponding to the first target heat pump operating range stored in the preset heat pump performance monitoring table, and obtain the judgment result. The first optimal operating record includes the historical maximum conversion efficiency of the heat pump when it is in the first target heat pump operating range during historical operation and the historical parameter values ​​of its various heat pump control parameters.

[0008] Based on the judgment result, determine the start-up parameter value corresponding to each heat pump control parameter;

[0009] The operation of the heat pump is controlled according to the start-up parameter value corresponding to each heat pump control parameter.

[0010] The second aspect of this application provides an iterative heat pump control device, including: an acquisition module, used to acquire multiple current heat pump operating parameters when the heat pump is in the start-up phase;

[0011] The judgment module is used to determine whether a first optimal operating record corresponding to a first target heat pump operating condition range is stored in a preset heat pump performance monitoring table based on the multiple current heat pump operating condition parameters, and to obtain a judgment result. The first optimal operating record includes the historical maximum conversion efficiency of the heat pump when it is in the first target heat pump operating condition range during historical operation and the historical parameter values ​​of its various heat pump control parameters.

[0012] The determination module is used to determine the start-up parameter value corresponding to each type of heat pump control parameter based on the determination result;

[0013] An initialization module is used to control the operation of the heat pump according to the start-up parameter values ​​corresponding to each type of heat pump control parameter.

[0014] A third aspect of this application provides an iterative heat pump control device, comprising: a memory and at least one processor, wherein the memory stores instructions; the at least one processor invokes the instructions in the memory to cause the iterative heat pump control device to execute the aforementioned iterative heat pump control method.

[0015] A fourth aspect of this application provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the above-described iterative heat pump control method.

[0016] In this application, if the optimal operating record corresponding to the current operating condition range is stored in the heat pump performance monitoring table when the heat pump starts, the heat pump control parameters recorded in the optimal record are directly used as the starting parameters, so that the heat pump can quickly approach or directly enter a high-efficiency operating state, which greatly shortens the adaptive adjustment process, avoids the low conversion efficiency caused by excessively long adaptive adjustment time in frequent start-stop scenarios, and improves the overall energy efficiency of the heat pump. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first embodiment of the iterative heat pump control method in this application;

[0018] Figure 2 This is a schematic diagram of the second embodiment of the iterative heat pump control method in this application;

[0019] Figure 3 This is a schematic diagram of the third embodiment of the iterative heat pump control method in this application;

[0020] Figure 4 This is a schematic diagram of the fourth embodiment of the iterative heat pump control method in this application;

[0021] Figure 5 This is a schematic diagram of an embodiment of the iterative heat pump control device in this application;

[0022] Figure 6 This is a schematic diagram of another embodiment of the iterative heat pump control device in this application;

[0023] Figure 7 This is a schematic diagram of one embodiment of the iterative heat pump control device in this application. Detailed Implementation

[0024] This application provides an iterative heat pump control method, apparatus, device, and storage medium to shorten the heat pump's adaptive adjustment time and avoid the overall energy efficiency of the heat pump being low due to an excessively long adaptive adjustment phase in frequent start-stop scenarios.

[0025] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms “comprising” or “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] For ease of understanding, the specific process of this application is described below. Please refer to [link / reference]. Figure 1 One embodiment of the iterative heat pump control method in this application includes:

[0027] 101. When the heat pump is in the startup phase, acquire multiple current heat pump operating parameters.

[0028] It is understood that the executing entity of this application can be an iterative heat pump control device, or it can be a heat pump or other terminal or server; the specific implementation is not limited here. This embodiment uses a heat pump as an example for illustration.

[0029] The heat pump in this embodiment is equipped with devices that support power metering, such as an energy module or meter that can detect operating power. It is also equipped with sensor devices that monitor inlet water temperature, outlet water temperature and water flow rate, such as temperature sensors and flow meters, to realize the calculation of real-time conversion efficiency. Real-time conversion efficiency, also known as heat exchange efficiency, can be COP or EER depending on the working mode.

[0030] In this embodiment, the heat pump operating parameters are used to indicate the current operating status and environmental conditions of the heat pump, including but not limited to outdoor ambient temperature, indoor ambient temperature, evaporation temperature, condensation temperature, outlet water temperature, inlet water temperature, compressor frequency, etc.

[0031] In this embodiment, a combination of two or more heat pump operating parameters can be obtained. The more types of parameters there are, the more accurate the current heat pump operating condition will be. This embodiment does not impose specific limitations on the number and types of parameters.

[0032] 102. Based on multiple current heat pump operating parameters, determine whether the preset heat pump performance monitoring table stores the first optimal operating record corresponding to the first target heat pump operating range, and obtain the judgment result.

[0033] Specifically, based on multiple current heat pump operating parameters, a first target heat pump operating condition range is determined in a preset heat pump performance monitoring table, and it is determined whether the optimal operating record is stored in the first target heat pump operating condition range to obtain the judgment result.

[0034] In this embodiment, the optimal operating record is used to indicate the maximum historical conversion efficiency under the current operating condition, that is, the heat pump parameter values ​​corresponding to the historical maximum conversion efficiency. For example, in heating mode, the COP corresponding to the current operating condition. max and its corresponding historical heat pump control parameter values; or, under cooling mode, the EER corresponding to the current operating condition. max The corresponding historical heat pump control parameter values ​​are also included. The first optimal operating record includes the historical maximum conversion efficiency of the heat pump when it was in the first target heat pump operating range during historical operation, as well as the historical parameter values ​​of various heat pump control parameters.

[0035] Understandably, the historical maximum conversion efficiency can be determined by statistically analyzing the real-time conversion efficiency over a period of time, selecting the maximum value from multiple real-time conversion efficiencies, and saving the heat pump control parameters corresponding to the historical maximum conversion efficiency to the heat pump performance monitoring table.

[0036] The heat pump performance monitoring table in this embodiment divides the heat pump's operation into multiple heat pump operating condition intervals. Each heat pump operating condition interval is a combination of multiple parameter intervals. The heat pump performance monitoring table in this embodiment can actively collect and record the point where the heat pump operates with the highest efficiency. The heat pump's conversion efficiency is closely related to multiple current heat pump operating condition parameters. The more types of parameters selected in the operating condition intervals in the heat pump performance monitoring table, the more accurate the determined maximum conversion rate. This embodiment does not impose specific restrictions on the types and number of parameters in the operating condition intervals divided in the heat pump performance monitoring table.

[0037] In this embodiment, the heat pump performance monitoring table is stored in the non-volatile storage area of ​​the heat pump. As the heat pump is used, the best operating records recorded in the table are continuously updated iteratively. The accuracy of the best operating records for each heat pump operating condition range in the table gradually improves, thus achieving adaptability to the installation and usage of the unit.

[0038] To facilitate understanding, an example is provided. In heating mode, the heat pump performance monitoring table in Table 1 is divided into multiple intervals based on ambient temperature, outlet water temperature, and compressor frequency. The first heat pump operating condition interval is defined by (0, f1], (-∞, T). out1 ] and (-∞, -T e1 Composition, that is, when the ambient temperature is between (-∞, -T) e1 Within the range of ], the outlet water temperature is in the range of (-∞, T out1 Within the range of (0, f1), if the compressor frequency is within the range of (0, f1), the first heat pump operating condition interval can be determined as the first target heat pump operating condition interval. At this time, an optimal operating record (COP1|X) is stored in the first target heat pump operating condition interval. 1_1 ,...,X 1_j ), where, the maximum conversion rate in the first target heat pump operating range is COP1, and the heat pump control parameters are configured as X when the heat pump is at its maximum conversion rate of COP1. 1_1 ,...,X 1_j .

[0039] Table 1

[0040]

[0041] In the table, -T e1 The first preset ambient temperature, T e2 The second preset ambient temperature, f1 is the first preset frequency, f2 is the second preset frequency, and T is the second preset ambient temperature. out1 The first preset outlet water temperature, T out2 For the second preset outlet water temperature, T out3 The third preset outlet water temperature can be set according to actual conditions, COP. i X represents the maximum coefficient of performance (COP) under the i-th heat pump operating condition range. i_jFor the heat pump to operate at its maximum coefficient of performance (COP) i The historical parameter values ​​of the j-th type of heat pump control parameter, where i and j are positive integers greater than zero.

[0042] It should be further explained that if the heat pump is currently operating in heating mode, it needs to determine whether the optimal COP is stored in the first target heat pump operating condition range of the heat pump performance monitoring table. If the heat pump is currently operating in cooling mode, it needs to determine whether the optimal EER is stored in the first target heat pump operating condition range of the heat pump performance monitoring table. The EER in cooling mode is omitted in Table 1 and will not be elaborated here.

[0043] 103. Determine the start-up parameter values ​​corresponding to each type of heat pump control parameter based on the judgment results.

[0044] Optionally, if the judgment result is "stored", that is, the heat pump performance monitoring table stores the first optimal operating record corresponding to the first target heat pump operating condition range, then the historical parameter value corresponding to each heat pump control parameter in the optimal operating record is determined as the heat pump start-up parameter value; if the judgment result is "not stored", that is, the heat pump performance monitoring table does not store the first optimal operating record corresponding to the first target heat pump operating condition range, then the default parameter value corresponding to each heat pump control parameter is determined as the heat pump start-up parameter value.

[0045] For example, if the first target heat pump operating range is any one of the heat pump operating ranges 1-8 or 10-17 in Table 1 above, the judgment result is already stored. Then, the historical parameter value X of each heat pump control parameter is used. i_1 ,...,X i_j If the first target heat pump operating range is the 9th or 18th heat pump operating range in Table 1 above, and the judgment result is not stored, then the default parameter value corresponding to each heat pump control parameter is determined as the heat pump's start-up parameter value. The operation record of the heat pump under the 9th and / or 18th heat pump operating range is calculated in real time, and each operation record is cached. The heat pump periodically saves the maximum COP in each operation record in the cache, as well as the maximum COP and the corresponding heat pump control parameter configuration, to the corresponding heat pump operating range in Table 1 above.

[0046] In this embodiment, the heat pump control parameters are used to indicate the adjustable parameters of the heat pump to be initialized during the startup phase, such as the opening degree of the electronic expansion valve, the fan speed, and the water pump speed. By setting and adjusting the specific values ​​of each heat pump control parameter, the heat pump can adjust its heat exchange capacity to meet user needs. This embodiment does not impose specific restrictions on the types, quantities, and combinations of heat pump control parameters.

[0047] It is understandable that some heat pump adjustable parameters do not need to be initialized during the startup phase. For example, although the compressor frequency is also a type of heat pump control parameter, its control value is usually confirmed according to the corresponding table or frequency control logic.

[0048] 104. Control the operation of the heat pump according to the start-up parameter value corresponding to each type of heat pump control parameter.

[0049] Specifically, the heat pump is initialized based on the start-up parameter values ​​corresponding to each heat pump control parameter. The heat pump is then controlled to maintain the start-up parameter values ​​for each heat pump control parameter for a first preset duration before entering the adaptive adjustment phase. This embodiment ensures that the heat pump has sufficient time to stabilize after startup by setting a first preset duration during the initialization phase. It avoids excessive adjustment of control parameters in the initial startup phase, preventing system oscillations or parameter fluctuations that might occur if adaptive adjustment is initiated immediately. This enhances operational stability, reduces unnecessary frequent operation and wear on heat pump components, and extends equipment lifespan. Furthermore, within the first preset duration, the heat pump can operate according to the pre-set high-efficiency start-up parameters, which helps to quickly approach the optimal operating state within the current operating range of the heat pump, shortening the time required for adaptive adjustment to a steady state.

[0050] In this embodiment, if the optimal operating record corresponding to the current operating condition range is stored in the heat pump performance monitoring table when the heat pump starts, the heat pump control parameters recorded in the optimal record are directly used as the starting parameters, so that the heat pump can quickly approach or directly enter a high-efficiency operating state, which greatly shortens the adaptive adjustment process, avoids the low conversion efficiency caused by excessive adaptive adjustment time in frequent start-stop scenarios, and improves the overall energy efficiency of the heat pump.

[0051] Please see Figure 2 The second embodiment of the iterative heat pump control method in this application includes:

[0052] 201. When the heat pump is in the startup phase, acquire multiple current heat pump operating parameters.

[0053] 202. Based on multiple current heat pump operating parameters, determine whether the preset heat pump performance monitoring table stores the first optimal operating record corresponding to the first target heat pump operating range, and obtain the judgment result.

[0054] Steps 201-202 can be performed by referring to steps 101-102, and will not be repeated here.

[0055] 203. If the judgment result is that a first historical best operation record is stored, then the historical parameter value corresponding to each heat pump control parameter in the first historical best operation record is determined as the heat pump start-up parameter value.

[0056] Specifically, if the first target heat pump operating condition range of the heat pump performance monitoring table stores the optimal operating record, then the historical parameter value corresponding to each heat pump control parameter in the optimal operating record is determined as the heat pump start-up parameter value.

[0057] To facilitate understanding, an example is provided. In this example, the heat pump control parameter is the electronic valve opening. Specifically, if the first target heat pump operating condition range stored in the heat pump performance monitoring table contains a first historical best operating record, then the target valve opening in the first historical best operating record is determined as the heat pump's starting valve opening. This example, by determining the starting valve opening through the heat pump performance monitoring table, enables the heat pump to quickly approach or directly enter a high-efficiency operating state. This significantly shortens the adaptive adjustment process of the electronic expansion valve, avoiding the low conversion efficiency caused by excessively long adaptive adjustment time in frequent start-stop scenarios. This improves the overall energy efficiency of the heat pump and also avoids component wear and liquid slugging caused by frequent adjustments of the electronic expansion valve.

[0058] 204. If the judgment result is that the first historical best operation record is not stored, then the default parameter value corresponding to each heat pump control parameter is determined as the heat pump start-up parameter value.

[0059] Specifically, if the first target heat pump operating condition range of the heat pump performance monitoring table does not store the optimal operating record, then the default parameter value corresponding to each heat pump control parameter will be determined as the heat pump start-up parameter value.

[0060] Optionally, if the maximum conversion rate is not stored in the first target heat pump operating condition range in the heat pump performance monitoring table, the preset default valve opening will be determined as the heat pump start valve opening.

[0061] Optionally, if the first target heat pump operating condition interval in the heat pump performance monitoring table does not store the maximum conversion rate, then the target adjacent operating condition interval of the first target heat pump operating condition interval is determined. The target adjacent operating condition interval is the adjacent public interval that stores the best operating record. The historical parameter value corresponding to each heat pump control parameter in the third historical best operating record corresponding to the target adjacent operating condition interval is determined as the start-up parameter value of the heat pump.

[0062] Adjacent operating condition ranges often have similar working environments or conditions. Their optimal parameters can provide a reference that is closer to the actual needs of the current target range, enabling the heat pump to adapt to and approach a high-efficiency operating state more quickly under new operating conditions. This enhances the system's adaptability to different operating conditions and avoids the process of gradually exploring and debugging from the default parameters.

[0063] It can be understood that the start-up parameters are determined by analyzing the relationship between the maximum conversion rate and the heat pump configuration parameters in each adjacent operating condition interval. For example, through interpolation, weighted averaging and their combinations, or through machine learning of their mapping relationship. This embodiment does not impose specific limitations.

[0064] For example, the first target heat pump operating condition interval is the 9th heat pump operating condition interval in Table 1. Its adjacent operating condition intervals are the 7th, 8th, 10th, 11th, and 12th heat pump operating condition intervals, and all of its adjacent operating condition intervals have recorded optimal operation records. By analyzing the COP7, COP8, and COP values ​​in these 5 intervals... 10 ~COP 12 and the corresponding X i_1 ,...,X i_j The relationship between them can be used to deduce X. 9_1 ,...,X 9_j .

[0065] 205. Control the operation of the heat pump according to the start-up parameter value corresponding to each type of heat pump control parameter.

[0066] Step 205 can be performed in accordance with step 104, and will not be repeated here.

[0067] 206. The heat pump performance monitoring table is iteratively updated based on the actual operating data of the heat pump.

[0068] Specifically, real-time operating data of the heat pump is collected, and the heat pump performance monitoring table is iteratively updated based on the real-time operating data.

[0069] The above-mentioned iterative update of the heat pump performance monitoring table based on real-time heat pump operation data includes: determining the real-time conversion efficiency based on the heat pump operation data; when the real-time conversion efficiency is greater than the optimal conversion rate recorded in the same heat pump operating condition interval in the heat pump performance monitoring table, or when no optimal operation record is stored in the heat pump operating condition interval, updating the optimal operation record in the same heat pump operating condition interval in the heat pump performance monitoring table based on the real-time conversion efficiency and the actual parameter values ​​of each heat pump control parameter.

[0070] Optionally, after updating the optimal operating record of the same heat pump operating condition range in the heat pump performance monitoring table based on the real-time conversion efficiency and the actual parameter values ​​of each heat pump control parameter, the update is further included: when the real-time conversion efficiency is less than or equal to the optimal conversion rate recorded in the same heat pump operating condition range in the heat pump performance monitoring table, the update is abandoned.

[0071] Optionally, when the real-time conversion efficiency is less than or equal to the optimal conversion rate recorded in the same heat pump operating condition interval in the heat pump performance monitoring table, the real-time conversion efficiency and the actual parameter values ​​of each heat pump control parameter are cached in the target storage area. When the preset target update conditions are met, the optimal operation record in the same heat pump operating condition interval in the heat pump performance monitoring table is updated according to the maximum conversion efficiency and the actual parameter value corresponding to the maximum conversion efficiency cached in the target storage area.

[0072] Specifically, the system obtains the real-time conversion efficiency and the current valve opening; determines whether the real-time conversion efficiency is greater than the optimal conversion rate recorded in the same heat pump operating condition range in the heat pump performance monitoring table; if so, it updates the optimal operating record for that range based on the real-time conversion efficiency and the current valve opening.

[0073] It is understandable that the iterative update steps of the above heat pump performance monitoring table can be performed at any stage of each heat pump operating cycle.

[0074] In this embodiment, if the optimal operating record corresponding to the current operating condition range is stored in the heat pump performance monitoring table when the heat pump starts, the heat pump control parameters recorded in the optimal record are directly used as the starting parameters. This allows the heat pump to quickly approach or directly enter a high-efficiency operating state, significantly shortening the adaptive adjustment process and avoiding the low conversion efficiency caused by excessively long adaptive adjustment time in frequent start-stop scenarios, thus improving the overall energy efficiency of the heat pump. Furthermore, as the heat pump's usage time increases, the heat pump performance monitoring table gradually adapts to the heat pump's operating conditions. This makes the data in the table more accurately reflect the actual performance, reducing errors caused by initial settings or fixed values. It enables the heat pump performance monitoring table to adaptively adjust to the operating conditions, environment, and equipment conditions of its respective heat pump, avoiding inaccurate starting parameters due to heat pump aging. Through continuous data collection and analysis, and iterative updates of the optimal operating record in the heat pump performance monitoring table, accurate maximum conversion rate and heat pump control parameters are provided for start-up and adjustment guidance even during aging, ensuring the reliability and stability of the heat pump.

[0075] In practical applications, the iterative heat pump control method provided in this application can be applied to the coordinated control of a single heat pump with other external energy control systems, as well as to application scenarios involving the coordinated control of multiple heat pumps. That is, it allows for unified management and intelligent scheduling of multiple heat pumps through a centralized heat pump control system. It can also be applied to scenarios where the centralized heat pump control system is coordinated with other external energy control systems. In these scenarios, the output capacity of the heat pump or the total output capacity of the centralized heat pump control system is typically limited. To balance the need for output limitations and the requirement for the heat pump to quickly adjust to its optimal conversion rate, please refer to [the relevant documentation / reference]. Figure 3 The third embodiment of the iterative heat pump control method in this application includes:

[0076] 301. When the heat pump is in the startup phase, acquire multiple current heat pump operating parameters.

[0077] 302. Based on multiple current heat pump operating parameters, determine whether the preset heat pump performance monitoring table stores the first optimal operating record corresponding to the first target heat pump operating range, and obtain the judgment result.

[0078] 303. Determine the start-up parameter values ​​corresponding to each type of heat pump control parameter based on the judgment results.

[0079] 304. Control the operation of the heat pump according to the start-up parameter value corresponding to each type of heat pump control parameter.

[0080] Steps 301-304 can be performed by referring to steps 101-104, and will not be repeated here.

[0081] 305. When the heat pump is in the adaptive adjustment stage, if a load ratio limiting command is received, the optimal output load ratio is determined, and the compressor frequency of the heat pump is controlled according to the optimal output load ratio.

[0082] Specifically, if the heat pump or heat pump control system receives a load ratio limit instruction, in order to ensure that the output capacity of the heat pump or heat pump control system does not exceed the limit, and to take into account the optimal conversion rate, the real-time load ratio of the heat pump must be controlled to not exceed the optimal output load ratio.

[0083] Specifically, when the heat pump is in the adaptive adjustment phase, it determines whether a load ratio limiting command has been received; if so, it controls the real-time load ratio of each heat pump to not exceed the optimal output load ratio corresponding to each heat pump; if not, it directly adjusts the compressor frequency of each heat pump based on feedback.

[0084] In this embodiment, the real-time load ratio is used to indicate the ratio between the real-time operating frequency of the heat pump and the maximum limiting frequency.

[0085] In this embodiment, the optimal output load ratio is the ratio between the optimal frequency point and the maximum limiting frequency in the target heat pump operating range FREQlow~FREQhigh, which is used to indicate the current operating condition.

[0086] The optimal frequency point is any adjustable frequency point within the target operating frequency range of the target heat pump operating condition range. The optimal frequency point can be set to the average of the maximum frequency FREQhigh and the minimum frequency FREQlow within the target operating frequency range, which is also the intermediate frequency. It can also be set to other values ​​within the target operating frequency range, such as 60%, 70% of the maximum frequency, or other values.

[0087] It should be further clarified that the maximum limiting frequency FREQmax is different from the maximum frequency of the target operating frequency range mentioned above. The maximum limiting frequency is the limit that the compressor operating frequency can reach under the current ambient temperature. It is generally obtained through whole-machine testing and mainly considers the following two indicators: ① whether the temperature of components and wiring harnesses is too high; ② whether the compressor is within a safe operating range. The maximum frequency FREQhigh of the target operating frequency range is only an artificially defined range value.

[0088] For the application of the iterative heat pump control method to a single heat pump, the above-mentioned determination of the optimal output load ratio includes: determining the ratio between the optimal frequency point in the target heat pump operating range and the maximum limiting frequency as the optimal output load ratio.

[0089] For the application of the iterative heat pump control method to the heat pump centralized control system scenario, the above determination of the optimal output load ratio includes: determining the centralized control conversion rate reference value according to the historical maximum conversion efficiency of each heat pump, obtaining the target operating frequency range corresponding to the centralized control conversion rate reference value; and determining the ratio of the optimal frequency point and the maximum limiting frequency of the target operating frequency range as the optimal output load ratio.

[0090] Understandably, due to the same operating conditions, although some deviations may occur with the extension of usage time, the performance of multiple heat pumps in the heat pump centralized control system follows a normal distribution. In this embodiment, the centralized control conversion rate reference value is determined based on the historical maximum conversion rate corresponding to multiple heat pumps in the heat pump centralized control system. The overall control of the heat pump centralized control system is performed using the centralized control conversion rate reference value, avoiding the increased complexity and computational load caused by controlling based on the parameters of a single heat pump. The centralized control conversion rate reference value can also represent the peak efficiency under the current operating conditions. Controlling the heat pump centralized control system based on the centralized control conversion rate reference value can achieve balanced control of the heat pump centralized control system. While meeting load requirements, it can make the starting heat pump as close to the optimal range as possible, thereby improving the overall energy efficiency of the heat pump centralized control system, reducing the overall energy consumption of the heat pump centralized control system, and saving the cost of the heat pump centralized control system.

[0091] Optionally, the above method of determining the central control conversion rate reference value based on the historical maximum conversion efficiency of each heat pump to obtain the target operating frequency range corresponding to the central control conversion rate reference value includes: determining the central control conversion rate reference value from the historical maximum conversion efficiency of each heat pump to obtain the target operating frequency range corresponding to the central control conversion rate reference value.

[0092] It can be understood that the median, average, mode, etc. among multiple historical maximum conversion efficiencies can be selected as the reference value for centralized control conversion rate. Alternatively, the maximum conversion rate with representative significance can be selected from multiple historical maximum conversion rates based on other screening conditions. This embodiment does not impose specific restrictions.

[0093] To facilitate understanding, an example is provided: the median of the maximum conversion rate is determined based on the historical maximum conversion efficiencies of multiple heat pumps, and this median of the maximum conversion rate is used as the reference value for the centralized control conversion rate; the target operating frequency range is then determined in the heat pump performance monitoring table based on the reference value for the centralized control conversion rate.

[0094] For example, a heat pump centralized control system currently has n running heat pumps, and the current working mode is hot water mode. By consulting the heat pump performance monitoring table, the current ambient temperature and water temperature can be determined, and the historical maximum conversion rate (COPmax) of each heat pump can be obtained, resulting in COPmax1, COPmax2, ..., COPmaxn. The respective heat pump performance monitoring tables record that the above COPmax occurred in the frequency ranges FREQlow1~FREQhigh1, FREQlow2~FREQhigh2, ..., FREQlow3~FREQhighn.

[0095] Select the maximum conversion rate from COPmax1, COPmax2, ..., COPmaxn as the reference value for centralized control conversion rate. For example, using the median COPmax8 as the reference value for centralized control conversion rate, we can obtain the operating frequency range corresponding to COPmax8 under the current operating conditions as FREQlow8~FREQhigh8, which is also the target operating frequency range of this application.

[0096] This embodiment uses the median as a reference value, which simplifies calculations and effectively represents the optimal efficiency point of most heat pumps in the current heat pump centralized control system. By using the median of the maximum conversion rate, the total energy consumption and output of the system can be better matched to actual needs when adjusting the number of heat pumps in operation, avoiding the overall efficiency loss that may be ignored by simply pursuing the best efficiency of individual heat pumps. This is beneficial for achieving optimal energy utilization while meeting the heat supply requirements.

[0097] In a heat pump centralized control system, the optimal frequency point is also the optimal centralized control frequency point. The optimal output load ratio is the ratio between the optimal centralized control frequency point and the maximum limiting frequency. For example, if the optimal centralized control frequency point is the midpoint frequency FREQmid of the target operating frequency range, then the optimal output load ratio LoadPercent = FREQmid ÷ FREQmax.

[0098] In this embodiment, if the optimal operating record corresponding to the current operating condition range is stored in the heat pump performance monitoring table when the heat pump starts, the heat pump control parameters recorded in the optimal record are directly used as the starting parameters. This allows the heat pump to quickly approach or directly enter a high-efficiency operating state, significantly shortening the adaptive adjustment process and avoiding the low conversion efficiency caused by excessively long adaptive adjustment time in frequent start-stop scenarios. Furthermore, when the heat pump or heat pump centralized control system in this embodiment receives a load ratio limit command, it can determine the optimal output load ratio through the current target operating condition range in the heat pump performance monitoring table. While meeting the load demand limit, it keeps the heat pump or heat pump centralized control system in the optimal range as much as possible, improving the overall energy efficiency of the heat pump or heat pump centralized control system. When applied to a heat pump centralized control system, it can also achieve balanced control of multiple heat pumps, effectively reducing the overall energy consumption of the heat pump centralized control system and saving the cost of the heat pump centralized control system.

[0099] In practical applications, to improve the control efficiency of the heat pump during the adaptive adjustment phase, please refer to [link / reference needed]. Figure 4 The fourth embodiment of the iterative heat pump control method in this application includes:

[0100] 401. When the heat pump is in the adaptive adjustment phase, determine whether a load ratio limiting command has been received.

[0101] 402. If a load ratio limitation command is received, the compressor frequency of the heat pump is controlled by feedback according to the optimal output load ratio.

[0102] Specifically, if a load ratio limit command is received, the operating frequency of the heat pump compressor is controlled to not exceed the optimal frequency point corresponding to the optimal output load ratio, and feedback control is performed.

[0103] Step 402 can be performed in accordance with step 305, and will not be repeated here.

[0104] It is understood that the feedback control method in this embodiment can be based on the proportional-integral-derivative of the deviation, i.e., the PID algorithm, or other feedback control methods. This embodiment does not impose any specific limitations.

[0105] 403. If no load ratio limit command is received, the compressor frequency of the heat pump will be controlled by feedback.

[0106] Specifically, if no load ratio limit command is received, the operating frequency of the heat pump compressor is controlled by feedback, and there is no load ratio limit.

[0107] 404. Determine whether the current heat pump operating range has changed.

[0108] The heat pump operating condition range of the heat pump performance monitoring table in this embodiment includes the operating frequency. Therefore, after the above feedback control of the compressor frequency of the heat pump, the target operating condition range in which the heat pump is currently located may not change, that is, it is still in the first target heat pump operating condition range, or it may change and be named the second target heat pump operating condition range.

[0109] Referring to Table 1, if the startup phase is the 17th heat pump operating range (i.e., the first target heat pump operating range), and the adjusted frequency is greater than f1, then the current operating range becomes the 18th heat pump operating range (i.e., the second target heat pump operating range).

[0110] 405. If the current heat pump operating range has not changed, then feedback control is performed on each heat pump control parameter.

[0111] Specifically, if the current heat pump operating range remains unchanged, the deviation of the heat pump control parameters will not exceed the deviation threshold, and feedback control can be directly applied to each heat pump control parameter. For example, if the current heat pump operating range remains unchanged, the opening of the heat pump's electronic expansion valve can be directly adjusted using PID control.

[0112] 406. If the current heat pump operating range changes, determine whether a second historical best operating record is stored.

[0113] Specifically, if the current heat pump operating condition range changes, that is, from the first target heat pump operating condition range to the second target heat pump operating condition range, it is determined whether the heat pump performance monitoring table stores the second historical best operating record corresponding to the second target heat pump operating condition range.

[0114] 407. If no second historical best operating record is stored, then feedback control is performed on each heat pump control parameter.

[0115] When the heat pump performance monitoring table does not store the second historical best operating record corresponding to the second target heat pump operating condition range, feedback control is performed on each heat pump control parameter.

[0116] 408. If a second historical best running record is stored, determine whether the real-time parameter value exceeds the deviation threshold.

[0117] Specifically, obtain the real-time parameter values ​​corresponding to each heat pump operating condition parameter; and determine whether the deviations between the historical parameter values ​​corresponding to each heat pump operating condition parameter, the real-time parameter values ​​corresponding to each heat pump control parameter, and the historical parameter values ​​corresponding to each heat pump operating condition parameter in the second historical best operation record exceed a preset deviation threshold.

[0118] Optionally, the real-time valve opening and the historical valve opening corresponding to the maximum conversion efficiency of the second target heat pump operating range can be used; the real-time deviation can be determined based on the real-time valve opening and the historical valve opening; the real-time deviation can be compared with a preset deviation threshold to obtain the comparison result. For example, if the electronic expansion valve opening recorded in the table is 100N and the deviation threshold is set to 20%, then when the current real-time valve opening is >120N or the real-time valve opening is <80N, it is determined that the deviation is too large.

[0119] In this embodiment, the deviation threshold can be an empirical value or it can be related to the fineness of the interval division in the heat pump performance monitoring table. For example, if the deviation threshold is set to 15%, it is normal if the deviation is within approximately 15%, and if it exceeds 15%, it indicates that the heat pump control parameter has failed to keep up in time.

[0120] 409. If the real-time parameter value exceeds the deviation threshold, the heat pump is adjusted according to the historical parameter value of each heat pump control parameter in the second historical best operation record, and then feedback control is performed on each heat pump control parameter.

[0121] Specifically, if the deviation of each heat pump control parameter exceeds the preset deviation threshold, the parameters are adjusted / reset according to the historical parameter values ​​corresponding to each heat pump control parameter stored in the current heat pump operating condition range of the heat pump performance monitoring table, and then PID control is performed on each heat pump control parameter; if the deviation of each heat pump control parameter does not exceed the preset deviation threshold, feedback control is directly performed on each heat pump control parameter.

[0122] Optionally, if the real-time deviation exceeds the preset deviation threshold, the valve opening is first adjusted to the historical valve opening recorded in the heat pump performance monitoring table, and then the valve opening is adaptively adjusted through PID control.

[0123] When the heat pump performance monitoring table stores the second historical best operating record corresponding to the second target heat pump operating condition range, the heat pump is adjusted according to the historical parameter values ​​of each heat pump control parameter stored in the second target heat pump operating condition range, and then feedback control is performed on each heat pump control parameter.

[0124] It is understandable that during the adaptive adjustment phase, the heat pump can adaptively adjust various heat pump control parameters until the heat pump reaches a steady state. The real-time parameter values ​​corresponding to each heat pump control parameter are adjusted according to the corresponding control logic. In order to shorten the time consumed in the adaptive adjustment phase, this embodiment uses a heat pump performance monitoring table to quickly adjust the parameters.

[0125] 410. If the real-time parameter value does not exceed the deviation threshold, feedback control is performed on each heat pump control parameter.

[0126] Specifically, if the deviation of each heat pump control parameter does not exceed the preset deviation threshold, then PID control is directly applied to each heat pump control parameter.

[0127] It should be further noted that steps 401-403, 404-407, and 408-410 of this embodiment can also be executed as independent solutions under appropriate circumstances, and the order of combination can also be adjusted. For example, steps 408-410 can be executed first and then steps 404-407 can be executed. Under appropriate circumstances, the above-mentioned solutions of this embodiment can also be combined with the first, second, and third embodiments to achieve overall coordinated control of the startup phase and the adaptive adjustment phase. This embodiment will not elaborate further.

[0128] For example, when the heat pump is in the adaptive adjustment phase, the real-time parameter values ​​corresponding to each heat pump control parameter are obtained. Based on the real-time parameter values ​​corresponding to each heat pump control parameter and the optimal operating record of the current heat pump operating range, it is determined whether each heat pump control parameter exceeds a preset deviation threshold. If so, the heat pump is adjusted according to the historical parameter values ​​corresponding to each heat pump control parameter stored in the heat pump performance monitoring table for the current heat pump operating range, and then feedback control is performed on each heat pump control parameter; otherwise, feedback control is directly performed on each heat pump control parameter.

[0129] For example, when the heat pump is in the adaptive adjustment stage and the current heat pump operating range changes, it is determined whether the heat pump performance monitoring table stores a second historical optimal operating record corresponding to the second target heat pump operating range; if a second historical optimal operating record is stored, the heat pump is adjusted according to the historical parameter value of each heat pump control parameter in the second historical optimal operating record, and then each heat pump control parameter is adaptively adjusted; if no second historical optimal operating record is stored or the current heat pump operating range has not changed, each heat pump control parameter is adaptively adjusted.

[0130] In this embodiment, during the heat pump adaptive adjustment phase, targeted feedback control of the compressor frequency can be performed based on whether a load ratio restriction command is received. When restricted, the optimal output load ratio is determined by the current target operating range in the heat pump performance monitoring table. While meeting load demand restrictions, the heat pump or heat pump control system is kept in the optimal range as much as possible, improving the overall energy efficiency of the heat pump or heat pump control system. When the current heat pump operating range changes or the heat pump control parameters deviate too much from the heat pump performance monitoring table, adjustment is first performed based on the optimal operating record, and then feedback adjustment is executed. This significantly shortens the adaptive adjustment time and avoids the low conversion efficiency caused by excessively long adaptive adjustment time in frequent start-stop scenarios, thus improving the overall energy efficiency of the heat pump.

[0131] The iterative heat pump control method of this application has been described above. The iterative heat pump control device of this application is described below. Please refer to [link / reference]. Figure 5 One embodiment of the iterative heat pump control device in this application includes:

[0132] The acquisition module 501 is used to acquire multiple current heat pump operating parameters when the heat pump is in the startup phase.

[0133] The judgment module 502 is used to determine whether the first optimal operation record corresponding to the first target heat pump condition range is stored in the preset heat pump performance monitoring table based on multiple current heat pump operating condition parameters, and to obtain the judgment result. The first optimal operation record includes the historical maximum conversion efficiency of the heat pump when it is in the first target heat pump condition range during historical operation and the historical parameter values ​​of its various heat pump control parameters.

[0134] The determination module 503 is used to determine the start-up parameter value corresponding to each type of heat pump control parameter based on the judgment result;

[0135] The initialization module 504 is used to control the operation of the heat pump according to the start-up parameter values ​​corresponding to each type of heat pump control parameter.

[0136] In this embodiment, if the optimal operating record corresponding to the current operating condition range is stored in the heat pump performance monitoring table when the heat pump starts, the heat pump control parameters recorded in the optimal record are directly used as the starting parameters, so that the heat pump can quickly approach or directly enter a high-efficiency operating state, which greatly shortens the adaptive adjustment process, avoids the low conversion efficiency caused by excessive adaptive adjustment time in frequent start-stop scenarios, and improves the overall energy efficiency of the heat pump.

[0137] Please see Figure 6 Another embodiment of the iterative heat pump control device in this application includes:

[0138] The acquisition module 501 is used to acquire multiple current heat pump operating parameters when the heat pump is in the startup phase.

[0139] The judgment module 502 is used to determine whether the first optimal operation record corresponding to the first target heat pump condition range is stored in the preset heat pump performance monitoring table based on multiple current heat pump operating condition parameters, and to obtain the judgment result. The first optimal operation record includes the historical maximum conversion efficiency of the heat pump when it is in the first target heat pump condition range during historical operation and the historical parameter values ​​of its various heat pump control parameters.

[0140] The determination module 503 is used to determine the start-up parameter value corresponding to each type of heat pump control parameter based on the judgment result;

[0141] The initialization module 504 is used to control the operation of the heat pump according to the start-up parameter values ​​corresponding to each type of heat pump control parameter.

[0142] Optionally, the iterative heat pump control device also includes a limiting output module 505, which, when the heat pump is in the adaptive adjustment phase, determines the optimal output load ratio if a limiting load ratio command is received, and controls the compressor frequency of the heat pump according to the optimal output load ratio.

[0143] Optionally, the limiting output module 505 is specifically used to determine the central control conversion rate reference value based on the historical maximum conversion efficiency of each heat pump, and to obtain the target operating frequency range corresponding to the central control conversion rate reference value;

[0144] The ratio of the optimal frequency point to the maximum limiting frequency within the target operating frequency range is determined as the optimal output load ratio.

[0145] Optionally, the judgment module 502 is specifically used to: if the judgment result is that a first historical best operation record is stored, then determine the historical parameter value corresponding to each heat pump control parameter in the first historical best operation record as the heat pump start-up parameter value;

[0146] If the judgment result is that the first historical best operation record is not stored, then the default parameter value corresponding to each heat pump control parameter will be determined as the heat pump start-up parameter value.

[0147] Optionally, the iterative heat pump control device also includes an iterative update module 506, which is used to iteratively update the heat pump performance monitoring table based on the actual operating data of the heat pump.

[0148] Optionally, the iterative heat pump control device further includes: a deviation adjustment module 507, used to determine whether the real-time parameter value of each heat pump control parameter exceeds the deviation threshold corresponding to the target optimal operating record when the heat pump is in the adaptive adjustment stage;

[0149] If so, the heat pump is adjusted according to the historical parameter values ​​corresponding to each heat pump control parameter in the target optimal operation record, and then each heat pump control parameter is adaptively adjusted.

[0150] If not, then adaptive adjustments will be made to each heat pump control parameter.

[0151] Optionally, the iterative heat pump control device further includes: an interval change adjustment module 508, used to determine whether the heat pump performance monitoring table stores a second historical optimal operation record corresponding to the second target heat pump operating interval when the current heat pump operating interval changes.

[0152] If a second historical best operating record is stored, the heat pump is adjusted according to the historical parameter values ​​of each heat pump control parameter in the second historical best operating record, and then each heat pump control parameter is adaptively adjusted.

[0153] If no second historical best operating record is stored or the current heat pump operating range has not changed, then each heat pump control parameter will be adaptively adjusted.

[0154] In this embodiment, if the optimal operating record corresponding to the current operating condition range is stored in the heat pump performance monitoring table when the heat pump starts, the heat pump control parameters recorded in the optimal record are directly used as the starting parameters. This allows the heat pump to quickly approach or directly enter a high-efficiency operating state, significantly shortening the adaptive adjustment process and avoiding the low conversion efficiency caused by excessively long adaptive adjustment time in frequent start-stop scenarios, thus improving the overall energy efficiency of the heat pump. During the heat pump adaptive adjustment phase, targeted feedback control of the compressor frequency can be performed based on whether a load ratio restriction command is received. Under restricted conditions, the optimal output load ratio is determined through the current target operating condition range in the heat pump performance monitoring table. While meeting load demand restrictions, the heat pump or heat pump control system is kept in the optimal range as much as possible, improving the overall energy efficiency of the heat pump or heat pump control system. If the current heat pump operating condition range changes or the heat pump control parameters deviate too much from the heat pump performance monitoring table, adjustment is first performed based on the optimal operating record, and then feedback adjustment is executed. This significantly shortens the adaptive adjustment time, avoiding the low conversion efficiency caused by excessively long adaptive adjustment time in frequent start-stop scenarios, thus improving the overall energy efficiency of the heat pump.

[0155] above Figure 5 and Figure 6 The iterative heat pump control device in this application is described in detail from the perspective of modular functional entities. The iterative heat pump control device in this application is described in detail from the perspective of hardware processing.

[0156] See Figure 7 As shown, the iterative heat pump control device includes a processor 700 and a memory 701. The memory 701 stores machine-executable instructions that can be executed by the processor 700. The processor 700 executes the machine-executable instructions to implement the iterative heat pump control method described above.

[0157] Furthermore, Figure 7 The iterative heat pump control device shown also includes a bus 702 and a communication interface 703. The processor 700, the communication interface 703, and the memory 701 are connected via the bus 702.

[0158] The memory 701 may include high-speed random access memory (RAM) or 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 703 (which can be wired or wireless), such as the Internet, wide area network, local area network, or metropolitan area network. The bus 702 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 7 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.

[0159] The processor 700 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 the processor 700 or by instructions in software form. The processor 700 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 disclosure. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this disclosure can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 701. Processor 700 reads the information in memory 701 and, in conjunction with its hardware, completes the method steps of the aforementioned embodiment.

[0160] This application also provides a computer-readable storage medium, which can be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium, storing instructions that, when executed on a computer, cause the computer to perform the steps of an iterative heat pump control method.

[0161] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0162] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. 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 of the various embodiments of this application. 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.

[0163] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications 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 this application.

Claims

1. An iterative heat pump control method, characterized in that, The iterative heat pump control method includes: When the heat pump is in the startup phase, acquire multiple current heat pump operating parameters; Based on the multiple current heat pump operating parameters, determine whether there is a first optimal operating record corresponding to the first target heat pump operating range stored in the preset heat pump performance monitoring table, and obtain the judgment result. The first optimal operating record includes the historical maximum conversion efficiency of the heat pump when it is in the first target heat pump operating range during historical operation and the historical parameter values ​​of its various heat pump control parameters. Based on the judgment result, determine the start-up parameter value corresponding to each heat pump control parameter; The operation of the heat pump is controlled according to the start-up parameter value corresponding to each heat pump control parameter.

2. The iterative heat pump control method according to claim 1, characterized in that, After controlling the heat pump to operate according to the start-up parameter values ​​corresponding to each heat pump control parameter, the method further includes: When the heat pump is in the adaptive adjustment phase, if a load ratio limiting command is received, the optimal output load ratio is determined, and the compressor frequency of the heat pump is controlled according to the optimal output load ratio.

3. The iterative heat pump control method according to claim 2, characterized in that, It is applied to a heat pump centralized control system, which includes multiple heat pumps; Determining the optimal output load ratio includes: Based on the historical maximum conversion efficiency of each heat pump, a reference value for the centralized control conversion rate is determined, and the target operating frequency range corresponding to the reference value for the centralized control conversion rate is obtained. The ratio of the optimal frequency point to the maximum limiting frequency within the target operating frequency range is determined as the optimal output load ratio.

4. The iterative heat pump control method according to claim 1, characterized in that, The step of determining the start-up parameter value corresponding to each heat pump control parameter based on the judgment result includes: If the judgment result is that the first historical best operation record is stored, then the historical parameter value corresponding to each heat pump control parameter in the first historical best operation record is determined as the start-up parameter value of the heat pump; If the judgment result is that the first historical best operation record is not stored, then the default parameter value corresponding to each heat pump control parameter is determined as the start-up parameter value of the heat pump.

5. The iterative heat pump control method according to claim 1, characterized in that, After controlling the heat pump to operate according to the start-up parameter values ​​corresponding to each heat pump control parameter, the method further includes: The heat pump performance monitoring table is iteratively updated based on the actual operating data of the heat pump.

6. The iterative heat pump control method according to claim 1, characterized in that, After controlling the heat pump to operate according to the start-up parameter values ​​corresponding to each heat pump control parameter, the method further includes: When the heat pump is in the adaptive adjustment phase, determine whether the real-time parameter value of each heat pump control parameter exceeds the deviation threshold corresponding to the target optimal operation record; If so, the heat pump is adjusted according to the historical parameter values ​​corresponding to each heat pump control parameter in the target optimal operation record, and then each heat pump control parameter is adaptively adjusted. If not, then adaptive adjustments will be made to each heat pump control parameter.

7. The iterative heat pump control method according to claim 1, characterized in that, After controlling the heat pump to operate according to the start-up parameter values ​​corresponding to each heat pump control parameter, the method further includes: When the current heat pump operating condition range changes, determine whether the heat pump performance monitoring table stores the second historical best operating record corresponding to the second target heat pump operating condition range; If the second historical best operation record is stored, the heat pump is adjusted according to the historical parameter value of each heat pump control parameter in the second historical best operation record, and then each heat pump control parameter is adaptively adjusted. If the second historical best operating record is not stored or the current heat pump operating range has not changed, then each heat pump control parameter is adaptively adjusted.

8. An iterative heat pump control device, characterized in that, The iterative heat pump control device includes: The acquisition module is used to acquire multiple current heat pump operating parameters when the heat pump is in the startup phase; The judgment module is used to determine whether a first optimal operating record corresponding to a first target heat pump operating condition range is stored in a preset heat pump performance monitoring table based on the multiple current heat pump operating condition parameters, and to obtain a judgment result. The first optimal operating record includes the historical maximum conversion efficiency of the heat pump when it is in the first target heat pump operating condition range during historical operation and the historical parameter values ​​of its various heat pump control parameters. The determination module is used to determine the start-up parameter value corresponding to each type of heat pump control parameter based on the determination result; An initialization module is used to control the operation of the heat pump according to the start-up parameter values ​​corresponding to each type of heat pump control parameter.

9. An iterative heat pump control device, characterized in that, The iterative heat pump control device includes: a memory and at least one processor, wherein the memory stores instructions; The at least one processor invokes the instructions in the memory to cause the iterative heat pump control device to perform the iterative heat pump control method as described in any one of claims 1-7.

10. A computer-readable storage medium storing instructions thereon, characterized in that, The instructions, when read and executed, perform the iterative heat pump control method as described in any one of claims 1-7.

Images