Heat pump frequency adjusting method and device, heat pump and storage medium

Abstract

The invention relates to the technical field of heat pumps, discloses a heat pump frequency adjustment method and device, a heat pump and a storage medium, and is used for determining a nonlinear target adjustment coefficient according to operation parameters of each heat pump, adjusting the response intensity of frequency to a target temperature difference and improving the adaptability of frequency adjustment to actual working conditions. The heat pump frequency adjusting method comprises the steps that compensation factors are determined according to current heat pump operation parameters and the corresponding operation parameter compensation relation; correcting a preset basic adjustment coefficient according to each compensation factor and the corresponding weight coefficient to obtain a target adjustment coefficient; and a preset basic frequency is adjusted according to the target adjustment coefficient and the target temperature difference, and the target heat pump frequency is obtained.

Description

Technical Field

[0001] The present application relates to the field of heat pump technology, and in particular to a heat pump frequency regulation method, device, heat pump and storage medium. Background Art

[0002] To ensure temperature comfort, such as swimming pool water temperature and indoor temperature, heat pumps, as an energy-saving device, can absorb heat from the air. Through the reverse Carnot principle, they only require a small amount of electricity to transport heat to the target area, reducing the demand for electricity and non-clean energy such as coal, and are increasingly valued by the market.

[0003] In related technologies, heat pumps usually adjust the operating frequency based on a single parameter feedback to maintain the temperature of the target area. However, the actual working conditions are complicated, and the traditional heat pump frequency adjustment scheme cannot effectively evaluate the impact of various factors. Fixed adjustment of a single parameter under complex working conditions will lead to low flexibility and adjustment lag, making it difficult to accurately adjust the operating frequency of the heat pump and unable to achieve true on-demand temperature and frequency control. Summary of the invention

[0004] The present application provides a heat pump frequency regulation method, device, heat pump and storage medium, which are used to solve the problem that traditional heat pump frequency regulation schemes cannot dynamically respond to changes in actual working conditions, have low flexibility, and cannot achieve true on-demand temperature and frequency control.

[0005] The first aspect of the present application provides a heat pump frequency adjustment method, comprising: determining each compensation factor according to each current heat pump operating parameter and its corresponding operating parameter compensation relationship;

[0006] The preset basic adjustment coefficient is corrected according to each of the compensation factors and their corresponding weight coefficients to obtain a target adjustment coefficient;

[0007] The preset basic frequency is adjusted according to the target adjustment coefficient and the target temperature difference to obtain a target heat pump frequency.

[0008] A second aspect of the present application provides a heat pump frequency adjustment device, comprising: a coefficient compensation module, for determining each compensation factor according to each current heat pump operating parameter and its corresponding operating parameter compensation relationship;

[0009] A correction module, used to correct the preset basic adjustment coefficient according to each of the compensation factors and their corresponding weight coefficients to obtain a target adjustment coefficient;

[0010] The regulating module is used to regulate the preset basic frequency according to the target regulating coefficient and the target temperature difference to obtain the target heat pump frequency.

[0011] A third aspect of the present application provides a heat pump, comprising: a memory and at least one processor, wherein the memory stores instructions; the at least one processor calls the instructions in the memory to enable the heat pump to execute the above-mentioned heat pump frequency adjustment method.

[0012] A fourth aspect of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, which, when executed on a computer, enable the computer to execute the above-mentioned heat pump frequency regulation method.

[0013] In the technical solution provided by the present application, each compensation factor is determined according to the current operating parameters of each heat pump and the corresponding operating parameter compensation relationship. The compensation factor of each parameter is determined by analyzing the degree of influence of the current operating parameters of each heat pump on the actual operating conditions, thereby avoiding the limitation of fixed adjustment of a single parameter and enhancing the heat pump's accurate grasp of the actual operating conditions under different operating conditions. The preset basic adjustment coefficient is corrected according to each of the compensation factors and the corresponding weight coefficient to obtain the target adjustment coefficient, which effectively makes up for the deficiency that the traditional scheme cannot handle the complex coupling relationship between the operating parameters of each heat pump. The influence of each compensation factor on the adjustment coefficient is balanced through the weight coefficient, so as to realize the dynamic coordinated optimization of the operating parameters of each heat pump, effectively handle the complex coupling relationship between the operating parameters of each heat pump, improve the adaptability of the heat pump under complex working conditions, effectively avoid the response lag problem in the traditional technology, and make the frequency adjustment of the heat pump more flexible and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the first embodiment of the heat pump frequency regulation method in this application;

[0015] Figure 2 This is a schematic diagram of a second embodiment of the heat pump frequency regulation method in this application;

[0016] Figure 3 This is a schematic diagram of a third embodiment of the heat pump frequency regulation method in this application;

[0017] Figure 4 A schematic diagram of an embodiment of a heat pump frequency regulating device in the present application;

[0018] Figure 5 It is a schematic diagram of another embodiment of the heat pump frequency regulating device in the present application;

[0019] Figure 6 This is a schematic diagram of an embodiment of a heat pump in the present application. DETAILED DESCRIPTION

[0020] The present application provides a heat pump frequency regulation method, device, heat pump and storage medium, which are used to optimize the dynamic response mechanism of the regulation coefficient through multi-parameter collaborative optimization to ensure that temperature and frequency can be controlled on demand under various working conditions.

[0021] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] For ease of understanding, the specific process of this application is described below. Figure 1 , the first embodiment of the heat pump frequency regulation method in the present application includes:

[0023] 101. Determine each compensation factor according to each current heat pump operating parameter and its corresponding operating parameter compensation relationship.

[0024] It is understandable that the execution subject of the present application may be a heat pump frequency regulating device, or may be a heat pump frequency regulating device, various heat pump terminals, a heat pump control system, etc. The specifics are not limited here. This embodiment is described by taking the heat pump control system as the execution subject.

[0025] In this embodiment, the heat pump control system includes a central controller, and various data acquisition devices for collecting heat pump operating parameters, such as various sensors, and actuators for performing frequency regulation, such as a compressor. The central controller is communicatively connected with the sensors and actuators.

[0026] The heat pump control system collects the current operating parameters of each heat pump through various sensors and transmits them to the central controller to execute the heat pump frequency adjustment method provided in this embodiment. The central controller controls the actuator to execute the target heat pump frequency to accurately adjust the working temperature, ensuring that the system can efficiently and stably control the temperature under different conditions while achieving energy-saving effects.

[0027] Specifically, each compensation factor is determined according to each current heat pump operating parameter and its corresponding operating parameter compensation relationship, wherein the heat pump operating parameter corresponds to the compensation factor one by one, and the compensation factor is used to indicate the influence of the current heat pump operating parameter on the adjustment coefficient.

[0028] In this embodiment, the heat pump operating parameters are used to indicate the current operating parameters of the heat pump, and the operating parameter compensation relationship is used to indicate the compensation relationship between each heat pump operating parameter and the adjustment coefficient; wherein, the heat pump operating parameters may be ambient temperature, heat pump load rate, measured working temperature, ambient humidity, refrigerant flow rate, etc., and the corresponding operating parameter compensation relationship may be ambient temperature compensation relationship, load rate compensation relationship, temperature difference compensation relationship, humidity compensation relationship, flow rate compensation relationship, etc. The above parameter types are only examples and are not specifically limited.

[0029] It is understandable that at least one heat pump operating parameter can be selected according to actual needs to determine the compensation factor, for example, any combination of two or more parameters can be selected, and for another example, at least one parameter other than the measured working temperature can be selected to correct the basic adjustment coefficient, without specific limitation.

[0030] It should be further explained that, under appropriate circumstances, the heat pump can also select only one heat pump operating parameter to determine the compensation factor. The heat pump operating parameter is an operating parameter that has a greater impact on the frequency besides the measured working temperature. The basic adjustment coefficient is corrected, and then the frequency is adjusted by the corrected target adjustment coefficient and the target temperature difference. At this time, the frequency adjustment takes into account the coupling relationship between the target temperature difference (the difference between the target temperature and the measured working temperature) and another heat pump operating parameter. Compared with setting a fixed adjustment coefficient, the flexibility of frequency adjustment can also be improved, and dynamic adjustment of the target adjustment coefficient can be realized. It is suitable for setting the appropriate response intensity of the frequency adjustment to the temperature difference under different working conditions to achieve on-demand temperature and frequency control.

[0031] Exemplarily, the ambient temperature can be collected by an ambient temperature sensor to cope with the impact of external conditions on the efficiency of the heat pump. When the ambient temperature is low, it will affect the heating efficiency of the heat pump, but is beneficial to the cooling efficiency. The ambient temperature compensation relationship can be set to indicate the relationship in which the regulation coefficient is adaptively adjusted as the ambient temperature changes in the current working mode. For example, when the swimming pool heat pump or other heat pump is in hot water mode or heating mode, the ambient temperature compensation relationship indicates that the regulation coefficient adaptively increases as the ambient temperature decreases, so as to speed up the frequency increase to cope with higher heat loss requirements; for another example, in cooling mode, the ambient temperature compensation relationship indicates that the regulation coefficient adaptively decreases as the ambient temperature decreases, so as to avoid high-frequency operation and achieve energy saving.

[0032] 102. According to each compensation factor and its corresponding weight coefficient, the preset basic adjustment coefficient is corrected to obtain the target adjustment coefficient.

[0033] Specifically, the preset basic adjustment coefficient is corrected according to each compensation factor and its corresponding weight coefficient to obtain the target adjustment coefficient. In this embodiment, the weight coefficient is used to balance the influence of the compensation factors corresponding to the current heat pump operating parameters on the adjustment coefficient. The target adjustment coefficient comprehensively considers the complex coupling relationship between the heat pump operating parameters to ensure that the heat pump can flexibly set the frequency response sensitivity of the target temperature difference under complex working conditions.

[0034] In this embodiment, the basic adjustment coefficient is used to indicate the set value of the frequency adjustment response strength to the temperature difference, and its specific value can be set according to actual conditions. For example, the basic adjustment coefficient can be set to any default value between 0.1 and 0.3 according to the heat pump parameters.

[0035] Exemplarily, the target adjustment coefficient may be determined by the following correction formula:

[0036] K target =K base ×[1+∑(f i (R now )×w i )]

[0037] Among them, K target represents the target adjustment coefficient, K base represents the basic adjustment coefficient, f i (R now ) represents the current heat pump operating parameter R now The calculation result of the operating parameter compensation relationship, w i Represents the weight coefficient corresponding to the i-th current heat pump operating parameter.

[0038] 103. Adjust the preset basic frequency according to the target adjustment coefficient and the target temperature difference to obtain the target heat pump frequency.

[0039] Specifically, the product of the target adjustment coefficient and the target temperature difference is determined as the frequency compensation value, and the sum of the basic frequency and the frequency compensation value is determined as the target heat pump frequency. In this embodiment, the influence of each heat pump parameter on the heat pump performance is comprehensively considered through the dynamically determined target adjustment coefficient, and the basic frequency is adjusted in combination with the current target temperature difference to achieve the best temperature control effect.

[0040] In this embodiment, the basic frequency is used to indicate the lowest frequency suitable for normal operation in the current period, and its specific value can be set according to actual conditions and is not specifically limited.

[0041] It is understandable that the base frequency of this embodiment provides a unified starting point. By calculating through a unified reference point, the entire control logic can be simplified. Adjustment based on the base frequency can help the system temperature adjustment more smoothly and avoid unnecessary waste of frequency due to historical influences or excessive load fluctuations. Especially in the case of large load fluctuations, starting from the base frequency can effectively avoid the energy efficiency loss caused by frequent and large frequency adjustments.

[0042] When the system is under low load or the temperature difference is small, the base frequency can help the system quickly enter the energy-saving low-frequency state and avoid unnecessary high-frequency operation. When the load is high or the temperature difference is large, by gradually increasing the frequency starting from the base frequency, the system can efficiently respond to demand, maximize temperature control efficiency and save energy.

[0043] In this embodiment, each compensation factor is determined according to the current operating parameters of each heat pump and the corresponding operating parameter compensation relationship. The compensation factor of each parameter is determined by analyzing the degree of influence of the current operating parameters of each heat pump on the actual working condition requirements, thereby avoiding the limitation of fixed adjustment through a single parameter and enhancing the heat pump's accurate grasp of the actual working condition requirements under different working conditions; the preset basic adjustment coefficient is corrected according to each compensation factor and its corresponding weight coefficient to obtain the target adjustment coefficient, which effectively makes up for the deficiency that the traditional scheme cannot handle the complex coupling relationship between the operating parameters of each heat pump, balances the influence of each compensation factor on the adjustment coefficient through the weight coefficient, realizes the dynamic coordinated optimization of the operating parameters of each heat pump, effectively handles the complex coupling relationship between the operating parameters of each heat pump, improves the adaptability of the heat pump under complex working conditions, effectively avoids the response lag problem in the traditional technology, and makes the frequency adjustment of the heat pump more flexible and accurate.

[0044] In practical applications, traditional solutions usually set a fixed adjustment coefficient and simply adjust the frequency based on the target temperature difference and the default value of the adjustment coefficient. For example, when the target temperature difference is 3℃, the frequency is increased by 3Hz, and when the target temperature difference is 5℃, the frequency is increased by 5Hz. However, when the heat pump is at a high load rate, continuing to use the fixed adjustment coefficient may cause overload, which is not conducive to system safety. Although the fixed adjustment coefficient can also respond to temperature changes, it is easy to overcompensate or undercompensate, thereby increasing energy consumption. To solve the above problems, please refer to Figure 2 , the second embodiment of the heat pump frequency regulation method in the present application includes:

[0045] 201. Determine compensation factors according to current heat pump operating parameters and corresponding operating parameter compensation relationships.

[0046] Specifically, the temperature difference compensation factor is determined according to the current target temperature difference and its corresponding temperature difference compensation relationship, and the load rate compensation factor is determined according to the current heat pump load rate and its corresponding load rate compensation relationship.

[0047] The temperature difference compensation relationship is used to indicate that the regulation coefficient increases adaptively as the target temperature difference increases; and the load rate compensation relationship is used to indicate that the regulation coefficient increases adaptively as the heat pump load rate increases.

[0048] In this embodiment, the temperature difference compensation factor is used to indicate the influence of the target temperature difference on the adjustment coefficient, and the load rate compensation factor is used to indicate the influence of the heat pump load rate on the adjustment coefficient.

[0049] The above-mentioned measured working temperature can be collected by the action temperature sensor set in the target working area. Depending on the type of heat pump, the measured working temperature can be the measured water temperature (such as a swimming pool heat pump, or a heat pump running in hot water mode) or the indoor ambient temperature. The difference between the set target temperature and the measured working temperature, that is, the target temperature difference, is the key factor in evaluating the actual working condition requirements. The larger the target temperature difference, the larger the adjustment coefficient can be to accelerate the frequency adjustment and quickly adjust the working temperature. When the target temperature difference is large, there is no need to set a large adjustment coefficient, and the current system stability is maintained.

[0050] The above-mentioned heat pump load rate can be collected through the load monitoring module. The heat pump load rate is used to indicate the ratio of the actual power of the current heat pump to the rated power. A higher load rate (such as above 70%) indicates that the system load is large and is suitable for higher frequencies. A low load rate (such as below 30%) is suitable for low frequencies to reduce energy consumption. Therefore, a load rate compensation relationship can be set to indicate that the adjustment coefficient increases adaptively as the heat pump load rate increases.

[0051] 202. Determine a coefficient compensation value according to the basic adjustment coefficient, each compensation factor and its corresponding weight coefficient.

[0052] Specifically, the temperature difference compensation factor and its corresponding first weight coefficient, the load rate compensation factor and its corresponding second weight coefficient are weighted and summed to obtain a comprehensive compensation factor; the comprehensive compensation factor is multiplied by the basic adjustment coefficient to obtain a coefficient compensation value.

[0053] In this embodiment, the first weight coefficient and the second weight coefficient are used to adjust the influence of the heat pump load rate and the target temperature difference on the adjustment coefficient, so as to reasonably evaluate the coupling influence relationship between the two on the adjustment coefficient and determine the adjustment amount of the adjustment coefficient under the current working conditions, that is, the coefficient compensation value.

[0054] 203. The sum of the basic adjustment coefficient and the coefficient compensation value is determined as the target adjustment coefficient.

[0055] It can be understood that the coefficient compensation value may be a positive number, that is, the adjustment coefficient needs to be positively compensated under the comprehensive evaluation of the heat pump load rate and the target temperature difference to increase the response intensity of the frequency to the target temperature difference, and the frequency regulation speed increases at this time; the coefficient compensation value may also be a negative number, that is, the adjustment coefficient is negatively compensated under the comprehensive evaluation of the heat pump load rate and the target temperature difference to reduce the response intensity of the frequency to the target temperature difference, and the frequency regulation speed decreases at this time; the coefficient compensation value may also be 0, that is, the impact of the adjustment coefficient under the comprehensive evaluation of the heat pump load rate and the target temperature difference may be exactly offset, and at this time it is only necessary to adjust the frequency according to the basic adjustment coefficient, that is, the basic response intensity of the frequency to the target temperature difference.

[0056] 204. Adjust the preset basic frequency according to the target adjustment coefficient and the target temperature difference to obtain a target heat pump frequency.

[0057] Step 204 may be performed with reference to step 103 and will not be described in detail here.

[0058] It can be understood that when the target temperature difference is large, the system automatically increases the frequency to accelerate the working temperature adjustment, and when the target temperature difference is small, the frequency is reduced to maintain stability. In this implementation, the target temperature difference not only dynamically determines the target adjustment coefficient with the heat pump load rate to improve the adjustment of the frequency response intensity under different loads and temperature differences, but also serves as a benchmark for frequency adjustment, and together with the target adjustment coefficient, determines the final target heat pump frequency, ensuring that the frequency adjustment can accurately meet user needs and achieve true on-demand temperature and frequency control.

[0059] In this embodiment, the load rate compensation factor and the temperature difference compensation factor are determined respectively according to the current heat pump load rate and its corresponding load rate compensation relationship, the target temperature difference and its corresponding temperature difference compensation relationship, so as to determine the degree of influence of the two on the actual working condition requirements, thereby avoiding the limitation of fixed adjustment through a single parameter and enhancing the heat pump's accurate grasp of the actual working condition requirements under different load rates and temperature difference conditions; the preset basic adjustment coefficient is corrected according to the temperature difference compensation factor and the first weight coefficient, the load rate compensation factor and the second weight coefficient to obtain the target adjustment coefficient, which effectively makes up for the deficiency that the traditional scheme cannot handle the complex coupling relationship between the heat pump load rate and the target temperature difference, balances the influence of each compensation factor on the adjustment coefficient through the weight coefficient, realizes the dynamic coordinated optimization of each parameter, improves the adaptability of the heat pump under complex working conditions, effectively avoids the response lag problem in the traditional technology, and makes the heat pump frequency adjustment more flexible and accurate.

[0060] Generally, the operation time of the swimming pool heat pump is relatively long, and different users have different requirements for controlling the swimming pool water temperature at different times. This embodiment takes the swimming pool heat pump as the execution subject and provides a third embodiment of the heat pump frequency adjustment method in this application:

[0061] 301. Determine a target temperature corresponding to the current time period according to a preset time period temperature control requirement, and determine the difference between the target temperature and the measured working temperature as a target temperature difference.

[0062] In this embodiment, the swimming pool heat pump includes not only the central controller and various acquisition devices of the first embodiment, but also a user interaction module to achieve personalized adjustment according to user needs, such as setting target temperatures for different time periods.

[0063] Specifically, when the swimming pool heat pump is started, the central controller identifies the current time period and determines the target water temperature and frequency range for the time period according to the user settings.

[0064] For example, during the peak period set by the user (such as 8:00-18:00), a higher target water temperature is set, and the frequency range is set to 80% to 100%; and during the off-peak period set by the user (such as 18:00-8:00): a moderate water temperature is set, and the frequency range is 50% to 70%; further, the user can also set special time periods: if the user needs to swim in the morning, a higher water temperature and frequency can be set to meet the needs.

[0065] 302. Determine compensation factors according to current heat pump operating parameters and corresponding operating parameter compensation relationships.

[0066] This embodiment is described by taking the heat pump parameters as the ambient temperature, the heat pump load rate and the target temperature difference as an example. Specifically, the load rate compensation factor is determined according to the current heat pump load rate and its corresponding load rate compensation relationship; the ambient temperature compensation factor is determined according to the current ambient temperature and its corresponding ambient temperature compensation relationship; the temperature difference compensation factor is determined according to the current target temperature difference and its corresponding temperature difference compensation relationship;

[0067] In this embodiment, the load rate compensation relationship is used to indicate that the adjustment coefficient increases adaptively as the heat pump load rate increases; the ambient temperature compensation relationship indicates that the adjustment coefficient increases adaptively as the ambient temperature decreases; and the temperature difference compensation relationship is used to indicate that the adjustment coefficient increases adaptively as the target temperature difference increases.

[0068] It is understandable that the target temperature difference reflects the degree of deviation between the current actual water temperature and the target water temperature. When the target temperature difference is large, rapid heating or cooling is required, and a higher K value is suitable to speed up the frequency response. When the target temperature difference is small, the water temperature is close to the target value, and a lower K value is suitable to avoid over-adjustment and frequent changes. The ambient temperature has a direct impact on the heating efficiency of the heat pump. A lower ambient temperature (for example, below 10°C) will reduce the efficiency of the heat pump, and a higher K value is required to compensate for the efficiency loss, while a higher ambient temperature (for example, above 25°C) improves the efficiency of the heat pump, and it is suitable to reduce the K value to reduce the intensity of frequency adjustment and save energy. The heat pump load rate indicates the current operating load of the heat pump. A higher load rate (for example, more than 70%) indicates that the system is close to full load operation. In order to avoid overload operation, the K value should be appropriately increased to speed up the frequency adjustment. A lower load rate (for example, less than 30%) indicates that the system is running lightly, and it is suitable to reduce the K value at this time to reduce the energy consumption of high-frequency operation.

[0069] Exemplarily, the temperature difference compensation relationship can be expressed by the following formula:

[0070]

[0071] Where, ΔT now Indicates the target temperature difference for the current period, ΔT max Indicates the preset maximum temperature difference. When the target temperature difference is large, f 1 (ΔT now ) approaches 1, the system’s response intensity to the target temperature difference increases. When the target temperature difference is small, f 1 (ΔT now ) approaches 0, the system reduces the response strength.

[0072] Exemplarily, the load rate compensation relationship can be expressed by the following formula:

[0073]

[0074] Among them, L now Indicates the current heat pump load rate, L max Indicates the preset maximum load rate, usually 1.0 or 100%. When the load rate is higher, f 2 (L now ) approaches 1, indicating that the system needs a higher K value; when the load rate is low, f 2 (L now ) is close to 0, reducing the regulation strength of K.

[0075] Exemplarily, the ambient temperature compensation relationship can be expressed by the following formula:

[0076]

[0077] Among them, T envIndicates the current ambient temperature, T min Indicates the preset minimum design ambient temperature, such as 5°C, T max Indicates the preset maximum design ambient temperature, such as 30°C. In a low temperature environment, f 3 (T env ) approaches 1, indicating that the influence of ambient temperature on K increases; in high temperature environment, f 3 (T env ) is close to 0, indicating that the influence of ambient temperature on K is reduced.

[0078] 303. Determine a coefficient compensation value according to the basic adjustment coefficient, each compensation factor and its corresponding weight coefficient.

[0079] Specifically, the temperature difference compensation factor and its corresponding first weight coefficient, the load rate compensation factor and its corresponding second weight coefficient, the ambient temperature compensation factor and its corresponding third weight coefficient are weighted and summed to obtain a comprehensive compensation factor; the comprehensive compensation factor is multiplied by the basic adjustment coefficient to obtain a coefficient compensation value.

[0080] Exemplary: calculated by the following coefficient compensation formula:

[0081] K CV =K base ×[f 1 (ΔT now )*w 1 +f 2 (L now )*w 2 +f 3 (T env )*w 3 ]

[0082] Among them, K CV Indicates the coefficient compensation value, w 1 、w 2 、w 3 They respectively represent the first weight coefficient corresponding to the target temperature difference, the second weight coefficient corresponding to the heat pump load rate and the third weight coefficient corresponding to the ambient temperature, so as to adjust the relative influence of the target temperature difference, the load rate and the ambient temperature on K.

[0083] 304. Determine the sum of the basic adjustment coefficient and the coefficient compensation value as the target adjustment coefficient.

[0084] 305. Adjust the preset basic frequency according to the target adjustment coefficient and the target temperature difference to obtain a target heat pump frequency.

[0085] Exemplary: Calculated by the following frequency adjustment formula:

[0086] F target =F base+K target ×ΔT now

[0087] Among them, F target Indicates the target heat pump frequency; F base Indicates the fundamental frequency; K target Indicates the target adjustment coefficient; ΔT now It represents the target temperature difference of the current period, that is, the difference between the target temperature of the current period and the measured water temperature, wherein the target temperature and the basic frequency can be the minimum value of the corresponding frequency range of the current period set by the basic frequency determined according to step 301.

[0088] To facilitate understanding, an example is provided. max =30℃, assuming the basic adjustment coefficient K base =0.2, maximum temperature difference ΔT max =10℃, maximum design ambient temperature; minimum design ambient temperature T min =5℃; Maximum load rate L max =1.0.

[0089] The current measured parameters are: target temperature difference ΔT now =6℃, heat pump load rate L now =0.8, ambient temperature T env =10℃;

[0090] The compensation factors calculated by the operating parameter compensation relationship are: 1 (ΔT now )=0.6,f 2 (L now )=0.8,f 3 (T env )=0.8, and the relative influence of target temperature difference, load rate and ambient temperature on K is balanced by the corresponding weight coefficient. Assuming that the target adjustment coefficient K target =0.34.

[0091] The basic frequency F of the current period base =30Hz, then the target adjustment frequency F target =F base +K target ×ΔT now =32.04Hz.

[0092] 306. Determine whether to readjust the heat pump frequency according to whether the target temperature difference of the next adjustment cycle exceeds the temperature difference threshold.

[0093] Determine whether the target temperature difference of the next adjustment cycle exceeds the temperature difference threshold; if so, re-adjust the frequency, that is, repeat the above steps 301-305, otherwise maintain the target heat pump frequency.

[0094] In this embodiment, each compensation factor is determined according to the current operating parameters of each heat pump and the corresponding operating parameter compensation relationship. The compensation factors of multiple parameters are determined by analyzing the influence of the current operating parameters of each heat pump on the actual working condition requirements, avoiding the limitation of fixed adjustment through a single parameter, and enhancing the accurate grasp of the actual working condition requirements of the heat pump under different working conditions; the preset basic adjustment coefficient is corrected according to each compensation factor and its corresponding weight coefficient to obtain the target adjustment coefficient, and the influence of the temperature difference, ambient temperature and load rate in the current period on the adjustment coefficient is balanced through the weight coefficient, solving the problem that multiple parameters cannot be effectively combined in the prior art, realizing the dynamic coordinated optimization of the operating parameters of each heat pump, effectively handling the complex coupling relationship between the operating parameters of each heat pump, and avoiding the limitation of a single parameter in the prior art through the nonlinear target adjustment coefficient, ensuring that the system achieves the best temperature control and energy saving effect under complex working conditions. Further, the operating parameters of each heat pump are collected in real time in each monitoring cycle, and the value of the adjustment coefficient is dynamically adjusted in combination with the actual working condition, rather than relying solely on fixed rules, thereby improving the intelligence level of the system, improving the adaptability of the heat pump to complex working conditions, effectively avoiding the response lag problem in traditional technology, and making the frequency adjustment of the heat pump more flexible and accurate.

[0095] The heat pump frequency regulation method in this application is described above. The heat pump frequency regulation device in this application is described below. Figure 4 , an embodiment of the heat pump frequency regulating device in the present application includes:

[0096] The coefficient compensation module 401 is used to determine various compensation factors according to various current heat pump operating parameters and their corresponding operating parameter compensation relationships;

[0097] A correction module 402 is used to correct the preset basic adjustment coefficient according to each compensation factor and its corresponding weight coefficient to obtain a target adjustment coefficient;

[0098] The adjustment module 403 is used to adjust the preset basic frequency according to the target adjustment coefficient and the target temperature difference to obtain the target heat pump frequency.

[0099] In the present embodiment, each compensation factor is determined according to the current operating parameters of each heat pump and the corresponding operating parameter compensation relationship. The compensation factor of each parameter is determined by analyzing the influence of the current operating parameters of each heat pump on the actual working condition requirements, thereby avoiding the limitation of fixed adjustment through a single parameter and enhancing the heat pump's accurate grasp of the actual working condition requirements under different working conditions. The preset basic adjustment coefficient is corrected according to each compensation factor and its corresponding weight coefficient to obtain the target adjustment coefficient, which effectively makes up for the deficiency that the traditional scheme cannot handle the complex coupling relationship between the operating parameters of each heat pump. The influence of each compensation factor on the adjustment coefficient is balanced through the weight coefficient, so as to realize the dynamic coordinated optimization of the operating parameters of each heat pump, effectively handle the complex coupling relationship between the operating parameters of each heat pump, improve the adaptability of the heat pump under complex working conditions, effectively avoid the response lag problem in the traditional technology, and make the frequency adjustment of the heat pump more flexible and accurate.

[0100] See also Figure 5 Another embodiment of the heat pump frequency regulating device in the present application includes:

[0101] The coefficient compensation module 401 is used to determine various compensation factors according to various current heat pump operating parameters and their corresponding operating parameter compensation relationships;

[0102] A correction module 402 is used to correct the preset basic adjustment coefficient according to each compensation factor and its corresponding weight coefficient to obtain a target adjustment coefficient;

[0103] The adjustment module 403 is used to adjust the preset basic frequency according to the target adjustment coefficient and the target temperature difference to obtain the target heat pump frequency.

[0104] Optionally, the heat pump frequency adjustment device includes a period adjustment module 404, which is used to determine whether to readjust the heat pump frequency according to whether the target temperature difference of the next adjustment period exceeds a temperature difference threshold.

[0105] Optionally, the coefficient compensation module 401 includes: a first compensation unit 4011, which is used to determine a load rate compensation factor according to the current heat pump load rate and its corresponding load rate compensation relationship, and the load rate compensation relationship is used to indicate that the adjustment coefficient increases adaptively as the heat pump load rate increases.

[0106] Optionally, the second compensation unit 4012 is used to determine the ambient temperature compensation factor according to the current ambient temperature and its corresponding ambient temperature compensation relationship, where the ambient temperature compensation relationship is used to indicate the relationship in which the adjustment coefficient is adaptively adjusted as the ambient temperature changes in the current working mode.

[0107] Optionally, the third compensation unit 4013 is specifically used to: determine the temperature difference compensation factor according to the current target temperature difference and its corresponding temperature difference compensation relationship, and the temperature difference compensation relationship is used to indicate that the adjustment coefficient increases adaptively as the target temperature difference increases.

[0108] Optionally, the correction module 402 includes:

[0109] The first determining unit 4021 is used to determine the coefficient compensation value according to the basic adjustment coefficient, each compensation factor and its corresponding weight coefficient;

[0110] The second determining unit 4022 is used to determine the sum of the basic adjustment coefficient and the coefficient compensation value as the target adjustment coefficient.

[0111] Optionally, the compensation unit 4021 is specifically used to perform weighted summation of the temperature difference compensation factor and its corresponding first weight coefficient, the load rate compensation factor and its corresponding second weight coefficient, and the ambient temperature compensation factor and its corresponding third weight coefficient to obtain a comprehensive compensation factor;

[0112] The comprehensive compensation factor is multiplied by the basic adjustment coefficient to obtain the coefficient compensation value.

[0113] In the present embodiment, in the present embodiment, each compensation factor is determined according to the current operating parameters of each heat pump and the corresponding operating parameter compensation relationship, and the compensation factors of multiple parameters are determined by analyzing the influence of the current operating parameters of each heat pump on the actual working condition requirements, thereby avoiding the limitation of fixed adjustment through a single parameter and enhancing the accurate grasp of the actual working condition requirements of the heat pump under different working conditions; the preset basic adjustment coefficient is corrected according to each compensation factor and its corresponding weight coefficient to obtain the target adjustment coefficient, and the influence of the temperature difference, ambient temperature and load rate in the current period on the adjustment coefficient is balanced through the weight coefficient, which solves the problem that multiple parameters in the prior art cannot be effectively combined, realizes dynamic coordinated optimization of the operating parameters of each heat pump, and effectively handles the complex coupling relationship between the operating parameters of each heat pump. Through the nonlinear target adjustment coefficient, the limitation of the single parameter in the prior art is avoided, ensuring that the system achieves the best temperature control and energy-saving effects under complex working conditions. Furthermore, the operating parameters of each heat pump are collected in real time during each monitoring cycle, and the value of the regulation coefficient is dynamically adjusted based on the actual working conditions, rather than simply relying on fixed rules. This improves the intelligence level of the system and the adaptability of the heat pump to complex working conditions, effectively avoiding the response lag problem in traditional technologies and making the frequency adjustment of the heat pump more flexible and accurate.

[0114] above Figure 4 and Figure 5 The heat pump frequency regulating device in the present application is described in detail from the perspective of modular functional entities, and the heat pump in the present application is described in detail from the perspective of hardware processing.

[0115] See also Figure 6 As shown, the heat pump includes a processor 600 and a memory 601 , wherein the memory 601 stores machine executable instructions that can be executed by the processor 600 , and the processor 600 executes the machine executable instructions to implement the above-mentioned heat pump frequency adjustment method.

[0116] Further, Figure 6 The heat pump shown further includes a bus 602 and a communication interface 603 , and the processor 600 , the communication interface 603 and the memory 601 are connected via the bus 602 .

[0117] The memory 601 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), for example, at least one disk storage. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 603 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used. The bus 602 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0118] The processor 600 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 600. The above processor 600 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can 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 gates or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present disclosure can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present disclosure can be directly embodied as a hardware decoding processor to be executed, or a combination of hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 601 , and the processor 600 reads the information in the memory 601 and completes the method steps of the above-mentioned embodiment in combination with its hardware.

[0119] The present application also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When the instructions are executed on a computer, the computer executes the steps of the heat pump frequency regulation method.

[0120] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0121] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0122] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat pump frequency regulation method, characterized in that: The heat pump frequency adjustment method comprises: Determine each compensation factor according to each current heat pump operating parameter and its corresponding operating parameter compensation relationship; The preset basic adjustment coefficient is corrected according to each of the compensation factors and their corresponding weight coefficients to obtain a target adjustment coefficient; The preset basic frequency is adjusted according to the target adjustment coefficient and the target temperature difference to obtain a target heat pump frequency.

2. The heat pump frequency adjustment method according to claim 1, characterized in that: The heat pump operating parameters include at least the heat pump load rate; Determining the compensation factors according to the current heat pump operating parameters and their corresponding operating parameter compensation relationships includes: The load rate compensation factor is determined according to the current heat pump load rate and its corresponding load rate compensation relationship, wherein the load rate compensation relationship is used to indicate that the regulation coefficient increases adaptively as the heat pump load rate increases.

3. The heat pump frequency adjustment method according to claim 1, characterized in that: The heat pump operating parameters include at least the ambient temperature; Determining the compensation factors according to the current heat pump operating parameters and their corresponding operating parameter compensation relationships includes: The ambient temperature compensation factor is determined according to the current ambient temperature and its corresponding ambient temperature compensation relationship, wherein the ambient temperature compensation relationship is used to indicate the relationship of the adjustment coefficient being adaptively adjusted as the ambient temperature changes in the current working mode.

4. The heat pump frequency regulation method according to any one of claims 1 to 3, characterized in that: The operating parameters of each heat pump include a target temperature difference; Determining the compensation factors according to the current heat pump operating parameters and their corresponding operating parameter compensation relationships includes: The temperature difference compensation factor is determined according to the current target temperature difference and its corresponding temperature difference compensation relationship, wherein the temperature difference compensation relationship is used to indicate that the adjustment coefficient increases adaptively as the target temperature difference increases.

5. The heat pump frequency adjustment method according to claim 1, characterized in that: The step of correcting the preset basic adjustment coefficient according to each of the compensation factors and their corresponding weight coefficients to obtain the target adjustment coefficient includes: Determine a coefficient compensation value according to the basic adjustment coefficient, each compensation factor and its corresponding weight coefficient; The sum of the basic adjustment coefficient and the coefficient compensation value is determined as the target adjustment coefficient.

6. The heat pump frequency adjustment method according to claim 5, characterized in that: The compensation factors include temperature difference compensation factor, load rate compensation factor and ambient temperature compensation factor; The determining of the coefficient compensation value according to the basic adjustment coefficient, each compensation factor and its corresponding weight coefficient includes: The temperature difference compensation factor and its corresponding first weight coefficient, the load rate compensation factor and its corresponding second weight coefficient, the ambient temperature compensation factor and its corresponding third weight coefficient are weighted and summed to obtain a comprehensive compensation factor; The comprehensive compensation factor is multiplied by the basic adjustment coefficient to obtain a coefficient compensation value.

7. The heat pump frequency adjustment method according to claim 1, characterized in that: After the preset basic frequency is adjusted according to the target adjustment coefficient and the target temperature difference to obtain the target heat pump frequency, the method further includes: Whether to readjust the heat pump frequency is determined based on whether the target temperature difference of the next adjustment cycle exceeds the temperature difference threshold.

8. A heat pump frequency regulating device, characterized in that: The heat pump frequency regulating device comprises: A coefficient compensation module is used to determine various compensation factors according to the current operating parameters of the heat pump and their corresponding operating parameter compensation relations; A correction module, used to correct the preset basic adjustment coefficient according to each of the compensation factors and their corresponding weight coefficients to obtain a target adjustment coefficient; The regulating module is used to regulate the preset basic frequency according to the target regulating coefficient and the target temperature difference to obtain the target heat pump frequency.

9. A heat pump, characterized in that: The heat pump comprises: a memory and at least one processor, wherein instructions are stored in the memory; The at least one processor calls the instructions in the memory to enable the heat pump to execute the heat pump frequency adjustment method according to any one of claims 1 to 7.

10. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instruction is read and executed, the heat pump frequency adjustment method according to any one of claims 1 to 7 is executed.

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