Heat pump air conditioning system

Abstract

The application relates to the technical field of heat pump systems, and discloses a heat pump air conditioning system which comprises a water module and a processing module. The processing module is configured to perform the following steps: obtaining the proportion of the current opened heat radiation indoor terminal in the total number of heat radiation indoor terminals, and taking the proportion as the current heating demand load rate; configuring the heat pump air conditioning system to enter an overall coordination mode or a local abnormality processing mode based on the current heating demand load rate; in the overall coordination mode, allowing first-intensity water supply temperature compensation to be performed on the basis of the water module reference water supply temperature according to terminal temperature difference feedback; in the local abnormality processing mode, limiting the water supply temperature compensation so that the water supply temperature compensation does not exceed a preset second intensity, and the second intensity is smaller than the first intensity; wherein the current heating demand load rate in the overall coordination mode is higher than the current heating demand load rate in the local abnormality processing mode. The application can realize hierarchical response and prevent global energy efficiency from being deteriorated due to local abnormality.

Description

Technical Field

[0001] This invention relates to the field of heat pump system technology, and more particularly to a heat pump air conditioning system. Background Technology

[0002] A heat pump air conditioning system is a highly efficient and energy-saving temperature control device that transfers low-grade heat energy (such as heat from the air) to high-grade heat energy through a reverse Carnot cycle, thereby achieving cooling or heating. A heat pump air conditioning system includes a compressor, condenser, throttling device, and evaporator, etc., and achieves heat transfer through the circulation of refrigerant. The system integrates a water module. The heat pump air conditioning system absorbs heat from the outdoor air, compresses and heats it through the compressor, releases the heat to the water module through the condenser, heats the circulating water, and then delivers it to the indoor radiant heat terminals in each room to achieve heating.

[0003] Traditional heat pump air conditioning systems use individual room temperature control, adjusting the water supply temperature of the water module based on the temperature difference feedback between each temperature control zone (i.e., the difference between the current indoor temperature and the set indoor temperature). When a room's temperature falls below the set value due to poor insulation, excessively long pipe ends, or user behavior (such as opening a window), the heat pump air conditioning system identifies this localized underheating or overcooling. To meet the needs of the underheating room, the system blindly increases the water supply temperature of the water module, leading to energy efficiency degradation in other temperature control zones. To compensate for localized heat loss or to execute an unreasonable response, the coefficient of performance (COP) of the heat pump air conditioning system drops significantly when the supply temperature is drastically increased. While power consumption surges, heat production efficiency remains extremely low, preventing the system from reaching its efficient steady-state operating range.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] This application designs and provides a heat pump air conditioning system, including: a water module, which includes: a water-fluorine heat exchanger, which includes: a heat exchange branch and a water supply branch; and a circulating water pump; refrigerant transfers heat to circulating water in the water supply branch of the water-fluorine heat exchanger through the heat exchange branch, and the heated circulating water is driven by the circulating water pump to be transported to indoor radiant heat terminals distributed in a temperature control area; the heat pump air conditioning system provides heat through the indoor radiant heat terminals; the heat pump air conditioning system also includes a processing module configured to perform the following steps: obtaining the proportion of currently active indoor radiant heat terminals to the total number of indoor radiant heat terminals, and using it as the current heating demand load rate; configuring the heat pump air conditioning system to enter an overall coordination mode or a local abnormality handling mode based on the current heating demand load rate; in the overall coordination mode, allowing water supply temperature compensation of a first intensity based on the water module's reference water supply temperature according to the terminal temperature difference feedback; in the local abnormality handling mode, limiting the water supply temperature compensation to not exceed a preset second intensity, and the second intensity is less than the first intensity; wherein, the current heating demand load rate in the overall coordination mode is higher than the current heating demand load rate in the local abnormality handling mode.

[0006] The above technical solution has the following advantages or beneficial effects: This application uses the proportion of currently activated thermal radiation terminals as the heating demand load rate, and divides the operating status of the heat pump air conditioning system into an overall coordination mode and a local anomaly handling mode to achieve graded response. The first intensity compensation in the overall coordination mode can meet the reasonable needs of most temperature control areas, balance overall comfort and energy efficiency, and ensure that the heat pump air conditioning system maintains stable and efficient operation under high load rate. In the local anomaly handling mode, compensation is strictly limited, and only a very small amount of temperature compensation is allowed to prevent the overall energy efficiency from deteriorating due to local anomalies.

[0007] In some embodiments of this application, a climate compensation model is pre-configured in the processing module. The climate compensation model is a linear function between the outdoor temperature and the reference water supply temperature of the water module. The processing module is configured to perform the following steps to obtain the reference water supply temperature of the water module: obtain the current outdoor temperature of the environment where the heat pump air conditioning system is located; input the current outdoor temperature as an independent variable into the climate compensation model to calculate the corresponding reference water supply temperature of the water module.

[0008] The above technical solution has the following advantages or beneficial effects: Through the climate compensation model, the real-time acquisition of the current outdoor temperature ensures that the reference water supply temperature of the water module is dynamically adjusted with environmental changes, thereby improving the comfort and energy efficiency of the heat pump air conditioning system.

[0009] In some embodiments of this application, when the processing module is configured to perform the first intensity of water supply temperature compensation in the overall coordination mode, it performs the following steps: obtaining the current indoor temperature and the corresponding set indoor temperature of the temperature control area where multiple thermal radiation indoor terminals are located, so as to calculate the terminal temperature difference feedback corresponding to the multiple thermal radiation indoor terminals; identifying the target deviation value representing the boundary heating gap in the multiple terminal temperature difference feedback; generating a positive water supply temperature compensation value using a preset proportional gain model based on the target deviation value, wherein the positive water supply temperature compensation value is configured to be superimposed with the water module reference water supply temperature to generate the command water supply temperature, so as to perform the first intensity of water supply temperature compensation.

[0010] The above technical solution has the following advantages or beneficial effects: In the overall coordination mode, by identifying the boundary heating gap, the processing module adjusts the reference water supply temperature of the water module in a targeted manner, and compensates for the boundary gap through the proportional gain model to adapt to different working conditions.

[0011] In some embodiments of this application, the processing module is configured to, in a local anomaly handling mode, when limiting the water supply temperature compensation to prevent it from exceeding a preset second intensity, perform the following steps: acquire the current indoor temperature and the corresponding set indoor temperature of the temperature control area where multiple thermal radiation indoor terminals are located, to calculate the terminal temperature difference feedback corresponding to the multiple thermal radiation indoor terminals; identify the target deviation value representing the boundary heating gap in the multiple terminal temperature difference feedbacks; when the target deviation value is not higher than the protection temperature difference threshold, use the water module reference water supply temperature as the command water supply temperature; when the target deviation value is higher than the protection temperature difference threshold, limit the increment of the water module reference water supply temperature to a preset protection water temperature increment threshold, to generate the command water supply temperature so that it does not exceed the preset second intensity; simultaneously, presume that the terminal temperature difference feedback meets the preset early warning conditions, associate and generate a local anomaly signal and trigger a local anomaly alarm.

[0012] The above technical solution has the following advantages or beneficial effects: it avoids over-adjustment through limited compensation and limits temperature fluctuations.

[0013] In some embodiments of this application, the processing module is further configured to: configure the heat pump air conditioning system to enter a balanced operation mode based on the current heating demand load rate; in the balanced operation mode, the water module reference water supply temperature is used as the command water supply temperature; wherein, the current heating demand load rate in the balanced operation mode is lower than the current heating demand load rate in the overall coordination mode, but higher than the current heating demand load rate in the local anomaly handling mode.

[0014] The above technical solution has the following advantages or beneficial effects: In the balanced operation mode, the energy efficiency and comfort of the heat pump air conditioning system are in a relatively good state. The processing module calculates the reference water supply temperature of the water module through the climate compensation model and uses the reference water supply temperature of the water module as the command water supply temperature to maintain stable operation.

[0015] In some embodiments of this application, a baseline climate compensation model is pre-configured in the processing module. The baseline climate compensation model is a linear function between the outdoor temperature and the baseline water supply temperature of the water module. The processing module is configured to perform the following steps to obtain the baseline water supply temperature of the water module: dynamically updating the slope and intercept values ​​of the baseline climate compensation model based on the current outdoor temperature and the current indoor temperature of the temperature control area to generate a dynamic climate compensation model; wherein, the slope value is configured to adjust the sensitivity of the baseline climate compensation model, and the intercept value is configured to respond to changes in the thermal environment of the heat pump air conditioning system; obtaining the current outdoor temperature of the environment where the heat pump air conditioning system is located; and inputting the current outdoor temperature as an independent variable into the corresponding dynamic climate compensation model to calculate the corresponding baseline water supply temperature of the water module.

[0016] The above technical solution has the following advantages or beneficial effects: by dynamically updating the benchmark climate compensation model to respond to changes in the thermal environment of the heat pump air conditioning system and adjusting its sensitivity, the corresponding benchmark water supply temperature of the water module can be output.

[0017] In some embodiments of this application, the processing module is configured to perform the following steps to dynamically update the intercept value of the benchmark climate compensation model: obtaining the current indoor temperature of multiple temperature control zones; obtaining the set indoor temperature of multiple temperature control zones; calculating an average room temperature deviation value representing the overall heating intensity deviation based on the current indoor temperature and the set indoor temperature; and dynamically updating the intercept value of the benchmark climate compensation model based on the average room temperature deviation value.

[0018] The above technical solution has the following advantages or beneficial effects: by collecting the current indoor temperature and set indoor temperature of multiple temperature control areas in real time, the overall average room temperature deviation value is calculated, and the intercept value of the benchmark climate compensation model is dynamically updated accordingly to match comfort and improve the accuracy of long-term operation.

[0019] In some embodiments of this application, the processing module is configured to perform the following steps to dynamically update the intercept value of the benchmark climate compensation model based on the average room temperature deviation value: In response to the average room temperature deviation exceeding a preset intercept adjustment dead zone, the processing module calls the proportional gain coefficient to correct the intercept value: If the average room temperature deviation meets a first benchmark condition, the heating intensity proportional gain coefficient is called to adjust the intercept value incrementally; if the average room temperature deviation meets a second benchmark condition, the energy saving attenuation proportional gain coefficient is called to adjust the intercept value incrementally.

[0020] The above technical solution has the following advantages or beneficial effects: By adopting a graded response strategy, the heating intensity proportional gain coefficient is called according to different states of average room temperature deviation (first / second reference conditions) to incrementally adjust the intercept and improve heating capacity, or the energy-saving attenuation proportional gain coefficient is used to reduce the amount of adjustment of the intercept to avoid overheating and achieve accurate and bidirectional model adaptation.

[0021] In some embodiments of this application, the processing module is configured to perform the following steps to dynamically update the slope value of the baseline climate compensation model: calculating an impact factor, which measures the degree of influence of the current outdoor temperature change on the current indoor temperature when the heat pump air conditioning system is running; if the impact factor exceeds a preset upper threshold, increasing the slope value of the baseline climate compensation model; if the impact factor is lower than a preset lower threshold, decreasing the slope value of the baseline climate compensation model.

[0022] The above technical solution has the following advantages or beneficial effects: by calculating the influencing factor in real time, it reflects the actual impact of outdoor temperature changes on indoor temperature, and dynamically updates the slope value based on dynamic threshold comparison.

[0023] In some embodiments of this application, the processing module is configured to perform the following steps to calculate the influence factor: obtaining the current average room temperature of the temperature control area at the first sampling time and the second sampling time; obtaining the current outdoor temperature corresponding to the first sampling time and the second sampling time respectively; calculating the average room temperature time-series deviation between the first sampling time and the second sampling time; calculating the outdoor temperature time-series deviation between the first sampling time and the second sampling time; and using the ratio between the average room temperature time-series deviation and the outdoor temperature time-series deviation as the influence factor.

[0024] The above technical solution has the following advantages or beneficial effects: by directly quantifying the coupling relationship between building thermal inertia and outdoor environment through time series, the slope value is precisely adjusted to generate an accurate reference water supply temperature for the water module.

[0025] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1This is a structural schematic diagram of a heat pump air conditioning system in use, provided in some embodiments of the present invention;

[0028] Figure 2 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0029] Figure 3 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0030] Figure 4 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0031] Figure 5 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0032] Figure 6 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0033] Figure 7 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0034] Figure 8 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0035] Figure 9 A schematic diagram for dynamically updating the baseline climate compensation model;

[0036] Figure 10 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0037] Figure 11 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0038] Figure 12 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0039] Figure 13 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention;

[0040] Figure 14 A flowchart of a processing module in a heat pump air conditioning system provided in some embodiments of the present invention; In the diagram: 10. Heat pump air conditioning system; 11. Outdoor unit; 12. Indoor heat radiation terminal; 13. Indoor temperature sensor; 14. Outdoor temperature sensor. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] This application designs and provides a heat pump air conditioning system. For example... Figure 1 As shown, the heat pump air conditioning system 10 is used in residential or commercial buildings to achieve efficient indoor temperature regulation. The interior space of the residential or commercial building includes at least one independent temperature-controlled area (e.g., a living room, bedroom, or office area).

[0043] The heat pump air conditioning system 10 includes indoor and outdoor sensor arrays. The indoor and outdoor sensor arrays include multiple sensor nodes.

[0044] In some embodiments of this application, the sensor node includes an indoor temperature sensor 13 and an outdoor temperature sensor 14. Exemplarily, at least one indoor temperature sensor 13 is provided in each temperature control zone for real-time monitoring of indoor air temperature. The outdoor temperature sensor 14 is located on the north exterior wall of the building.

[0045] In some embodiments of this application, the sensor node may also include a human infrared sensor, which is used to detect the number and location of people indoors, estimate the heat dissipation of the human body, and assist in load prediction.

[0046] In some embodiments of this application, the sensor node may also include a current sensor, which is set at the socket or the power supply terminal of the device and can monitor the heat generated by the device in real time to assist in calculating the heat gain in the room.

[0047] In other embodiments of this application, the sensor node may also include a humidity sensor, a gas concentration sensor, etc., which are installed indoors or outdoors.

[0048] From a thermodynamic perspective, the heat pump air conditioning system provided in this application uses refrigerant as the working medium. The heat pump air conditioning system includes an evaporator, a compressor, a condenser, and a throttling device connected in sequence. The refrigeration cycle of the heat pump air conditioning system involves a series of processes, including compression, condensation, expansion, and evaporation. Low-temperature, low-pressure refrigerant enters the compressor, which compresses it into a high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The throttling device causes the high-temperature, high-pressure liquid refrigerant formed in the condenser to expand into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant that has expanded in the throttling device and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves a cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled.

[0049] In the heat pump air conditioning system provided in this application, the outdoor unit 11 includes a compressor. The compressor is the core component for temperature regulation and is driven by a variable frequency drive to match real-time load demands. For example, SPWM (Sinusoidal Pulse Width Modulation) or SVPWM (Space Vector Pulse Width Modulation) is used to act on the inverter, changing the frequency and voltage of the output current, thereby controlling the speed of the permanent magnet synchronous motor. In other words, DC inverter technology is used to regulate the operating frequency of the compressor. A high-pressure switch and a high-pressure sensor are installed on the discharge side of the compressor to monitor the discharge pressure in real time; a low-pressure sensor is installed on the suction side of the compressor to monitor the return gas status.

[0050] The outdoor unit 11 also includes an outdoor heat exchanger, which is used to realize the energy exchange between the refrigerant and the outdoor ambient air.

[0051] The outdoor unit 11 also includes an outdoor fan (such as an axial flow fan or a cross-flow fan). The outdoor fan is located near the outdoor heat exchanger and improves heat exchange efficiency by driving air to flow through the heat exchanger body (or also through the reheat exchange pipe below the heat exchanger body). For example, the outdoor fan can be a DC brushless motor, and its speed is adjusted by a PWM duty cycle signal: through a built-in wind speed mapping table, the duty cycle of the PWM signal is increased when the wind speed needs to be increased, and vice versa.

[0052] The outdoor unit 11 is also equipped with a switching valve (such as a four-way valve) to switch the operating mode by changing the refrigerant flow direction: when cooling, the outdoor heat exchanger operates as a condenser; when heating, the outdoor heat exchanger operates as an evaporator.

[0053] The outdoor unit 11 also includes a gas-liquid separator, which uses gravity settling or centrifugal principle to separate gaseous and liquid refrigerant to prevent "liquid slugging".

[0054] The outdoor unit 11 also includes an outdoor throttling element; the outdoor throttling element is an electronic expansion valve, which drives a stepper motor through a PWM pulse sequence to further adjust the opening degree of the outdoor throttling element.

[0055] The heat pump air conditioning system 10 also includes a water module, the core component of which is a water-refrigerant heat exchanger. The water-refrigerant heat exchanger achieves energy coupling between refrigerant and water circulation, and includes a heat exchange branch and a water supply branch. The refrigerant transfers heat to the circulating water in the water supply branch through the heat exchange branch. The water circulation is driven by a circulating water pump, which delivers the heated circulating water to the indoor radiant heat terminal 12 distributed in each temperature control zone.

[0056] In some embodiments of this application, the indoor radiant heat terminal 12 can be a floor heating pipe embedded in the floor, a pipe installed near the wall, or a combination thereof. An expansion tank is configured in the water module to buffer pressure fluctuations caused by the thermal expansion of the water. To precisely control the heat supply to each temperature control zone, the indoor radiant heat terminal 12 is equipped with a corresponding temperature control valve and centrally connected to a water collector. Inlet water temperature sensors and supply water temperature sensors can be installed at the inlet and outlet of the water-fluoride heat exchanger to provide real-time feedback on the heat exchange temperature difference of the water system. The rotational speed of the circulating water pump is preferably regulated using pulse width modulation (PWM). By changing the duty cycle, the effective voltage applied to the circulating water pump motor is linearly adjusted, thereby controlling the rotational speed of the circulating water pump.

[0057] The water module also includes a water module throttling element. The water module throttling element is an electronic expansion valve, which is also driven by a stepper motor through a PWM pulse sequence to further adjust the opening of the water module throttling element.

[0058] The heat pump air conditioning system 10 also includes an indoor unit.

[0059] The indoor unit includes: a casing. A fluid passage is defined within the casing for airflow. An indoor heat exchanger is located within the fluid passage and is configured to exchange heat between the refrigerant circulating within it and the air passing through the casing.

[0060] The indoor unit also includes an indoor fan. The indoor fan is used to generate forced convection in the indoor heat exchanger. The indoor fan includes an impeller (e.g., a cross-flow fan, centrifugal fan, or axial fan) and a drive motor, which is mechanically coupled to the impeller. In some embodiments of this application, the drive motor is a brushless direct current motor (BLDC) or a permanent magnet synchronous motor (PMSM), and can switch between multiple preset fan speed levels (including but not limited to silent, low, medium, high, and strong) by adjusting the frequency or pulse width of the current applied to the drive stator winding.

[0061] The indoor unit also includes an indoor throttling element; the indoor throttling element is an electronic expansion valve, which drives a stepper motor through a PWM pulse sequence to further adjust the opening of the indoor throttling element.

[0062] The heat pump air conditioning system 10 also includes a processing module, which is used to control, process data, and communicate the heat pump air conditioning system. The processing unit adopts a modular design and can be flexibly configured according to different application scenarios and functional requirements.

[0063] The processing module includes a processor, which is a computing unit of various types used to perform the functions provided by the present invention, and may include one or more combinations of the following: central processing unit, dedicated processor, microcontroller unit, and graphics processing unit, etc.

[0064] The processing module includes a storage component for storing instructions, applications, configuration parameters, and operating data required for the operation of the heat pump air conditioning system. The storage component can be volatile memory and / or non-volatile memory.

[0065] The processing module is configured with multiple communication interfaces, including but not limited to supporting serial interfaces, Wi-Fi, Bluetooth, Zigbee, LoRa, or NB-IoT.

[0066] The driver component of the processing module is used to manage peripheral devices and interact with the storage component, including but not limited to data reading and writing, signal conversion and event processing.

[0067] The processor, storage components, communication interface, and driver components are interconnected via a bus to form a data transmission channel.

[0068] The processing module can be implemented collaboratively by the outdoor unit board system and the indoor unit board system.

[0069] The processing module can also be implemented collaboratively by the outdoor unit board system, the indoor unit board system, the edge processing device (such as a centralized controller or gateway), and the cloud server. For example, the outdoor unit board system and the indoor unit board system can perform local control, while the edge processing device or the cloud server can perform global optimization (including large-scale data analysis, machine learning, and global optimization decision-making). Data synchronization and remote control can be achieved through protocols such as MQTT.

[0070] In some embodiments of this application, the processing module is configured to perform, as Figure 2 The following steps are shown:

[0071] Step S101: Obtain the proportion of currently active indoor radiant heating terminals to the total number of indoor radiant heating terminals, and use this as the current heating demand load rate.

[0072] Step S102: Configure the heat pump air conditioning system to enter the overall coordination mode or the local anomaly handling mode based on the current heating demand load rate.

[0073] Step S103: In the overall coordination mode, the water supply temperature compensation of the first intensity is allowed based on the terminal temperature difference feedback and the water module reference water supply temperature.

[0074] Step S104: In the local abnormality handling mode, limit the water supply temperature compensation so that it does not exceed the preset second intensity, and the second intensity is less than the first intensity.

[0075] Among them, the current heating demand load rate under the overall coordination mode is higher than the current heating demand load rate under the local anomaly handling mode.

[0076] This application uses the proportion of currently activated thermal radiation terminals as the heating demand load rate to divide the operating status of the heat pump air conditioning system into an overall coordination mode and a local anomaly handling mode, thereby achieving a graded response. The first intensity compensation in the overall coordination mode can meet the reasonable needs of most temperature control areas, balance overall comfort and energy efficiency, and ensure that the heat pump air conditioning system maintains stable and efficient operation under high load rates. In the local anomaly handling mode, compensation is strictly limited, allowing only a very small amount of temperature compensation to prevent the overall energy efficiency from deteriorating due to local anomalies.

[0077] Specifically, during the operation of the heat pump air conditioning system, the processing module collects real-time operating status data from all indoor radiant heating terminals (e.g., underfloor heating coils) via a communication bus. Each indoor radiant heating terminal reports its current operating status (e.g., based on an on / off signal sent by the thermostat). The processing module pre-stores the total number of all indoor radiant heating terminals. .

[0078] The processing module obtains the number of currently activated indoor thermal radiation terminals, denoted as . .

[0079] For example, if the thermostat corresponding to the indoor radiant heat radiation terminal indicates that the indoor radiant heat radiation terminal is in operation, the number of indoor radiant heat radiation terminals is incremented by 1. The processing module can be configured to refresh the number of currently active indoor radiant heat radiation terminals at fixed time intervals (e.g., every 5 minutes or every 1 minute) in response to user adjustments or environmental changes.

[0080] The processing module calculates the proportion of currently active indoor thermal radiation terminals out of the total number of indoor thermal radiation terminals: .

[0081] The processing module will determine the proportion of currently active indoor thermal radiation terminals to the total number of indoor thermal radiation terminals. Converted to current heating demand load rate .

[0082] In some embodiments of this application, the current heating demand load factor The percentage of currently activated indoor thermal radiation terminals out of the total number of indoor thermal radiation terminals. That is, .

[0083] In other embodiments of this application, the current heating demand load rate can also be determined based on parameters such as outdoor temperature, the temperature difference between the set indoor temperature and the current indoor temperature. Dynamic adjustments are made. For example, the lower the outdoor temperature, the higher the proportion of currently active indoor thermal radiation terminals out of the total number of indoor thermal radiation terminals, all while maintaining the same activation rate. Linear amplification can be achieved using a temperature correction factor.

[0084] The processing module further executes the following decision-making process:

[0085] Determine the current heating demand load rate Is it above the high load coordination threshold? (For example, 60% to 70%)

[0086] If the current heating demand load rate Above the high load coordination threshold If the heat pump air conditioning system is configured to enter the overall coordination mode, the processing module is allowed to perform the first intensity of water supply temperature compensation based on the terminal temperature difference feedback of the heat radiation indoor terminal (the difference between the current indoor temperature and the set indoor temperature), i.e., a relatively large dynamic adjustment.

[0087] Alternatively, determine the current heating demand load factor. Is it below the low load coordination threshold? (For example, 30%)

[0088] If the current heating demand load rate Below the low load coordination threshold If the system is not configured to handle local anomalies, the heat pump air conditioning system will enter a local anomaly handling mode. In this mode, the processing module strictly limits the compensation range of the water module's reference supply water temperature, allowing only minor adjustments (i.e., second-intensity compensation). In other words, even if the current indoor temperature at a particular heat radiation indoor terminal is significantly lower than normal, the supply water temperature compensation will be limited to a very small range.

[0089] The processing module simultaneously determines whether the terminal temperature difference feedback meets preset warning conditions (e.g., the temperature difference between the current indoor temperature and the set indoor temperature for a particular indoor radiant radiation terminal continuously exceeds a set threshold, and does not show a decreasing trend within several control cycles after compensation). If the terminal temperature difference feedback meets the preset warning conditions, the processing module records the ID, timestamp, and other information of the corresponding indoor radiant radiation terminal, triggers a local anomaly alarm, and alerts the user or maintenance personnel through sound and light, APP push notifications, wired controllers, or central controller interfaces, indicating the abnormal location of the indoor radiant radiation terminal. Alarm information may include suggested actions (e.g., checking if windows are closed).

[0090] The processing module continuously monitors changes in the current heating demand load rate and terminal temperature difference feedback. If the current heating demand load rate changes significantly, it automatically switches between overall coordination mode and local anomaly handling mode.

[0091] The processing module is also configured to allow maintenance personnel to manually switch between overall coordination mode and local anomaly handling mode, or adjust the compensation intensity (first intensity or second intensity), or temporarily disable the triggered local anomaly alarms through interaction.

[0092] In some embodiments of this application, a climate compensation model is pre-configured in the processing module.

[0093] In some embodiments of this application, the climate compensation model is a linear function of the outdoor temperature and the reference water supply temperature of the water module.

[0094] In some embodiments of this application, the processing module is configured to perform, as Figure 3 The steps shown are to obtain the reference water supply temperature for the water module.

[0095] Step S201: Obtain the current outdoor temperature of the environment where the heat pump air conditioning system is located.

[0096] Step S202: Input the current outdoor temperature as the independent variable into the climate compensation model to calculate the corresponding reference water supply temperature for the water module. .

[0097] For example, the processing module takes the pre-processed (e.g., filtering or smoothing the collected current outdoor temperature to eliminate short-term fluctuations) current outdoor temperature as an independent variable input into the linear function of the climate compensation model. The processing module performs linear function calculations and outputs the corresponding water module reference water supply temperature.

[0098] Linear functions are simple, efficient, and easy to configure in embedded controllers, making them suitable for heat pump air conditioning systems in most climates. Real-time acquisition of the current outdoor temperature ensures that the water module's reference supply temperature dynamically adjusts with environmental changes, improving the comfort and energy efficiency of the heat pump air conditioning system. The parameters of the climate compensation model are stored in the processing module and can be adjusted via remote updates or local configuration.

[0099] In some embodiments of this application, the processing module is configured to perform the following when performing first-intensity water supply temperature compensation in overall coordination mode: Figure 4 The following steps are shown:

[0100] Step S301: Obtain the current indoor temperature and the corresponding set indoor temperature of the temperature control area where the multiple thermal radiation indoor terminals are located, so as to calculate the terminal temperature difference feedback corresponding to the multiple thermal radiation indoor terminals.

[0101] For each indoor thermal radiation terminal, calculate its terminal temperature difference feedback. . To determine the difference between the set indoor temperature and the current indoor temperature, the temperature difference of all indoor heat radiation terminals will be fed back. The data is stored to form a terminal temperature difference feedback set.

[0102] Step S302: Identify the target deviation value representing the boundary heating gap in the temperature difference feedback from multiple terminals.

[0103] The processing module identifies the largest positive temperature difference value from the set of terminal temperature difference feedback corresponding to all indoor thermal radiation terminals, that is... ; This serves as the target deviation value representing the boundary heating gap.

[0104] Step S303: Based on the target deviation value, a positive water supply temperature compensation value is generated using a preset proportional gain model. The positive water supply temperature compensation value is configured to be superimposed on the water module's reference water supply temperature to generate the command water supply temperature, so as to perform the first intensity of water supply temperature compensation.

[0105] Specifically, the processing module uses a preset proportional gain model to convert the target deviation value into a positive water supply temperature compensation value. The proportional gain model can be expressed as: ,in is the proportional gain coefficient, which is a constant, preferably less than 0.5.

[0106] Instructed water supply temperature .

[0107] In some embodiments of this application, the commanded water supply temperature further satisfies:

[0108] ;

[0109] This is the upper limit threshold for the water supply temperature, for example, 50°C to 55°C.

[0110] The processing module sends the instruction water supply temperature to the actuators of the heat pump air conditioning system, such as valve elements, water collectors, water module electronic expansion valves, or compressors corresponding to the indoor heat radiation terminals.

[0111] In the overall coordination mode, by identifying the boundary heating gap, the processing module adjusts the reference water supply temperature of the water module accordingly, and compensates for the boundary gap through the proportional gain model to adapt to different operating conditions.

[0112] In some embodiments of this application, the processing module is configured to perform the following when the local anomaly handling mode limits the water supply temperature compensation to a preset second intensity: Figure 5 The following steps are shown:

[0113] Step S401: Obtain the current indoor temperature and the corresponding set indoor temperature of the temperature control area where the multiple thermal radiation indoor terminals are located, so as to calculate the terminal temperature difference feedback corresponding to the multiple thermal radiation indoor terminals.

[0114] For each indoor thermal radiation terminal, calculate its terminal temperature difference feedback. . To determine the difference between the set indoor temperature and the current indoor temperature, the temperature difference of all indoor heat radiation terminals will be fed back. The data is stored to form a terminal temperature difference feedback set.

[0115] Step S402: Identify the target deviation value representing the boundary heating gap in multiple terminal temperature difference feedbacks.

[0116] In some embodiments of this application, the processing module identifies the largest positive temperature difference value from the set of terminal temperature difference feedback corresponding to all indoor thermal radiation terminals, i.e. ; This serves as the target deviation value representing the boundary heating gap.

[0117] Step S403: Determine whether the target deviation value is higher than the protection temperature difference threshold.

[0118] The processing module is pre-configured with a protective temperature difference threshold. ; Protected temperature difference threshold The temperature can be set as a constant, such as 4℃, according to system design specifications, user comfort requirements, and / or safe operation limits.

[0119] Step S404: When the target deviation value is not higher than the protection temperature difference threshold, the water module reference water supply temperature is used as the command water supply temperature.

[0120] Because the current heating demand load rate is low, if This indicates that the maximum terminal temperature difference feedback has not exceeded the protection temperature difference threshold, the energy demand of the heat pump air conditioning system is low, it is operating in a relatively efficient range, and the overall heating capacity is sufficient to meet the needs of most indoor heat radiation terminals. There is no global problem, and the water module reference water supply temperature is used as the command water supply temperature.

[0121] Step S405: When the target deviation value is higher than the protection temperature difference threshold, the increment of the water module reference water supply temperature is limited to the preset protection water temperature increment threshold to generate the command water supply temperature so that it does not exceed the preset second intensity.

[0122] if Then the pre-set protection water temperature increment threshold will be invoked. ;

[0123] by As the command water supply temperature;

[0124] Under these conditions, a limited compensation mode is adopted to mitigate the impact of local problems while preventing them from escalating into global energy waste.

[0125] Step S406: Assuming that the terminal temperature difference feedback meets the preset early warning conditions, generate a local abnormal signal and trigger a local abnormal alarm.

[0126] When the target deviation value exceeds the protection temperature difference threshold, it is assumed that the terminal temperature difference feedback meets the preset warning conditions, and a local anomaly signal is generated and a local anomaly alarm is triggered. The processing module records the ID, timestamp, and other information of the corresponding indoor thermal radiation terminal, triggers the local anomaly alarm, and notifies the user or maintenance personnel through sound and light, APP push, wired controller, or central controller interface, indicating the abnormal location of the indoor thermal radiation terminal. Alarm information may include suggested actions (such as checking whether the windows are closed).

[0127] In some embodiments of this application, the processing module is also configured to perform, such as Figure 6 The following steps are shown:

[0128] Step S501: Configure the heat pump air conditioning system to enter balanced operation mode based on the current heating demand load rate.

[0129] Step S502: In balanced operation mode, the water module reference water supply temperature is used as the command water supply temperature.

[0130] Among them, the current heating demand load rate in the balanced operation mode is lower than that in the overall coordination mode, but higher than that in the local anomaly handling mode.

[0131] Specifically, the processing module determines the current heating demand load rate. To determine whether the heat pump air conditioning system has entered balanced operation mode, if the following conditions are met:

[0132] ;

[0133] Then it enters the balanced operation mode.

[0134] The above range indicates that the heat pump air conditioning system can operate under a medium load condition, neither a globally coordinated high load condition nor a low load condition that may have local anomalies. Heating demand is balanced, with no significant shortcomings or excesses. The energy efficiency and comfort of the heat pump air conditioning system are relatively good. The processing module calculates the water module's reference supply temperature using a climate compensation model and uses this reference supply temperature as the command supply temperature. The processing module continuously monitors the current heating demand load rate. If the current heating demand load rate If the value exceeds the equilibrium range (e.g., rises above 60% or falls below 30%), switch to either the overall coordination mode or the local anomaly handling mode.

[0135] In some embodiments of this application, the hierarchical control process based on the current heating demand load rate is as follows: Figure 7 Steps S601 to S613 are shown.

[0136] In some embodiments of this application, a baseline climate compensation model is pre-configured in the processing module. The baseline climate compensation model is a linear function between the outdoor temperature and the baseline water supply temperature of the water module.

[0137] The processing module is configured to perform, such as Figure 8 The following steps are shown to obtain the reference water supply temperature for the water module:

[0138] Step S701: Based on the current outdoor temperature and the current indoor temperature of the temperature control area, dynamically update the slope and intercept values ​​of the baseline climate compensation model to generate a dynamic climate compensation model.

[0139] In the dynamic climate compensation model, the slope value is configured to adjust the sensitivity of the baseline climate compensation model, and the intercept value is configured to respond to changes in the thermal environment of the heat pump air conditioning system.

[0140] Step S702: Obtain the current outdoor temperature of the environment where the heat pump air conditioning system is located.

[0141] Step S703: Input the current outdoor temperature as the independent variable into the corresponding dynamic climate compensation model to calculate the corresponding water module reference water supply temperature.

[0142] The baseline climate compensation model is a linear function of outdoor temperature and the baseline water supply temperature of the water module, where there is a negative correlation between the two. The lower the outdoor temperature, the higher the required baseline water supply temperature of the water module is to compensate for the increased heat loss of the building; conversely, the higher the outdoor temperature, the lower the required baseline water supply temperature of the water module.

[0143] Based on the current outdoor temperature and the current indoor temperature in the temperature control area, the slope and intercept values ​​of the baseline climate compensation model can be dynamically updated to generate a dynamic climate compensation model. The slope and intercept values ​​of the climate compensation model are key parameters determining how the water module's baseline supply temperature responds to changes in the current outdoor temperature. The slope represents the sensitivity of the water module's baseline supply temperature to changes in the current outdoor temperature. If the room cools significantly with a slight change in weather, the slope value needs to be increased. If the room temperature fluctuates little with weather changes, but the water module's baseline supply temperature fluctuates frequently and significantly, the slope value needs to be decreased to ensure smoother operation. The intercept value determines the baseline temperature of the entire compensation curve, determined based on room temperature feedback. It is used to respond to changes in the thermal environment of the heat pump air conditioning system; if it is too cold, the intercept value is increased; if it is too hot, the intercept value is decreased. For specific buildings, the slope and intercept values ​​of the dynamically updated baseline climate compensation model are adjusted based on actual operating conditions.

[0144] like Figure 9 As shown, ①, ②, and ③ are three dynamically updated baseline climate compensation models (linear functions) with different slope and intercept values, representing the changes in the baseline water supply temperature of the water module under environmental temperature changes. The upper limit threshold for the water supply temperature is also shown. The upper horizontal dashed line represents the upper limit threshold of the water supply temperature. This is a protection limit; under no circumstances can the calculated commanded water supply temperature exceed the upper limit threshold. To prevent heat pump air conditioning systems from blindly raising the water temperature in localized abnormal modes, leading to energy efficiency failure, a lower limit threshold for supply water temperature is set. The lower horizontal dashed line represents the lower limit threshold of the water supply temperature. It is a protection lower limit; under no circumstances should the calculated commanded water supply temperature be lower than the lower threshold of the water supply temperature. Lower limit threshold of water supply temperature It is the minimum water temperature required to ensure the basic circulation of the heat pump air conditioning system, prevent condensation, and meet low-load requirements.

[0145] like Figure 10 As shown, the processing module is configured to perform the following steps to dynamically update the intercept value of the baseline climate compensation model:

[0146] Step S801: Obtain the current indoor temperature of multiple temperature control zones.

[0147] Step S802: Obtain the set indoor temperature for multiple temperature control zones.

[0148] Step S803: Calculate the average room temperature deviation value representing the overall heating intensity deviation based on the current indoor temperature and the set indoor temperature.

[0149] Step S804: Dynamically update the intercept value of the baseline climate compensation model based on the mean room temperature deviation value.

[0150] Specifically, for each temperature control zone, the processing module calculates its room temperature deviation, which is the difference between the set indoor temperature and the current indoor temperature. The processing module also calculates the average room temperature deviation across all temperature control zones. This average deviation reflects the overall heating intensity deviation of the heat pump air conditioning system. For example, if the average room temperature deviation is greater than 0, it indicates insufficient overall heating; if it is close to zero, it indicates balanced overall heating; and if it is less than 0, it indicates excessive overall heating. Based on the average room temperature deviation, the processing module dynamically updates the intercept value of the baseline climate compensation model.

[0151] like Figure 11 As shown, the processing module is configured to perform the following steps to dynamically update the intercept value of the baseline climate compensation model based on the mean room temperature deviation value.

[0152] Step S901: Select multiple representative temperature control zones.

[0153] In some embodiments of this application, representative temperature control regions include:

[0154] A temperature control zone is set up for the indoor heat radiation terminal with the longest pipeline and the greatest hydraulic loss, which is used to evaluate the performance of the heat pump air conditioning system under the worst heating conditions.

[0155] The temperature control area near the circulating water pump is used to assess the overheating risk of the heat pump air conditioning system.

[0156] Another temperature control zone, located in the middle between the two, represents the average operating condition of the heat pump air conditioning system.

[0157] Step S902: Continuously collect the indoor temperature and set indoor temperature of the temperature control area for at least one week.

[0158] The timeframe covers different outdoor temperatures and user scenarios (e.g., daytime / nighttime, weekday / weekend). A period that includes typical weather variations is preferred.

[0159] Step S903: Identify the baseline outdoor temperature range from the collected outdoor temperatures.

[0160] For example, the frequency distribution of outdoor temperature is calculated, and the interval with the highest frequency is selected as the benchmark outdoor temperature interval.

[0161] Step S904: Select a time period in which the outdoor temperature is within the baseline outdoor temperature range and the change range is less than the preset change range, and extract the indoor temperature, water supply temperature, return water temperature and set indoor temperature within the time period.

[0162] Step S905: For each representative temperature control zone, calculate the average indoor temperature within the time interval.

[0163] Step S906: Calculate the deviation between the average indoor temperature and the set indoor temperature within the time interval, and use the average deviation between the average indoor temperature and the set indoor temperature of all representative temperature control areas as the average indoor temperature deviation value.

[0164] Step S907: In response to the fact that the average room temperature deviation exceeds the preset intercept adjustment dead zone, the proportional gain coefficient is called to correct the intercept value.

[0165] After correcting the intercept value, the processing module waits for at least one complete baseline weather cycle (24-48 hours) before recalculating each representative temperature control area, calculating the average room temperature within the time interval, and making more fine adjustments.

[0166] The processing module has a pre-defined dead zone range for intercept adjustment, indicating that the heating state is basically balanced and no adjustment of the intercept value is required. For example, the dead zone range for intercept adjustment is... ,in, To set the indoor temperature.

[0167] More specifically, such as Figure 12 As shown, in response to the average room temperature deviation in each representative temperature control zone exceeding the preset intercept adjustment dead zone, the proportional gain coefficient is used to correct the intercept value, which includes the following steps:

[0168] Step S1001: Determine whether the average room temperature deviation meets the first reference condition.

[0169] For example, determining whether the average room temperature deviation is lower than .

[0170] Step S1002: If the average room temperature deviation meets the first reference condition, then the intercept value is adjusted by calling the heating intensity proportional gain coefficient increment.

[0171] The processing module has a preset proportional gain coefficient for heating intensity. If the average room temperature deviation meets the first reference condition, then the heating intensity proportional gain coefficient is applied. Incremental adjustment of the intercept value.

[0172] The adjustment amount is expressed as: ,in This represents the average room temperature deviation.

[0173] Heating intensity proportional gain coefficient It is 1.0-1.5.

[0174] Step S1003: Determine whether the average room temperature deviation meets the second reference condition.

[0175] For example, determining whether the average room temperature deviation is higher than .

[0176] Step S1004: If the average room temperature deviation meets the second reference condition, then call the energy-saving attenuation proportional gain coefficient reduction adjustment intercept value.

[0177] The processing module has a preset energy-saving attenuation ratio gain coefficient. If the average room temperature deviation meets the second reference condition, then the energy-saving attenuation proportional gain coefficient is applied. Decrease adjustment intercept value.

[0178] The adjustment amount is expressed as: ;

[0179] Energy saving attenuation proportional gain coefficient It ranges from 0.8 to 1.2.

[0180] In some embodiments of this application, the processing module is configured to perform, as Figure 13 The following steps are shown to dynamically update the slope values ​​of the baseline climate compensation model:

[0181] Step S1101: Calculate the impact factor, which measures the degree of influence of the current outdoor temperature change on the current indoor temperature when the heat pump air conditioning system is running.

[0182] Step S1102: If the impact factor exceeds the preset upper limit threshold, then increase the slope value of the baseline climate compensation model.

[0183] Step S1103: If the impact factor is lower than the preset lower threshold, then the slope value of the baseline climate compensation model is reduced in reverse.

[0184] In some embodiments of this application, the processing module is configured to perform, as Figure 14 The following steps are shown to calculate the impact factor:

[0185] Step S1201: Obtain the current average room temperature of the temperature control area at the first sampling time and the second sampling time.

[0186] Step S1202: Obtain the current outdoor temperature corresponding to the first sampling time and the second sampling time, respectively.

[0187] Step S1203: Calculate the average room temperature timing deviation between the first sampling time and the second sampling time.

[0188] Step S1204: Calculate the outdoor temperature time-series deviation between the first sampling time and the second sampling time.

[0189] Step S1205: Use the ratio between the time-series deviation of average room temperature and the time-series deviation of outdoor temperature as an influencing factor.

[0190] More specifically, the processing module monitors changes in outdoor temperature in real time and identifies cooling or heating processes as selected data acquisition intervals. For example, if the processing module identifies an outdoor temperature change of 5°C or more within 24 hours, and the rate of change is 2°C / hour or less, then the corresponding time period is selected as the data acquisition interval. Within the selected data acquisition interval, a first sampling time and a second sampling time are chosen; for example, the start time of a cooling or heating process is used as the first sampling time, and the end time is used as the second sampling time.

[0191] The average room temperature of the three representative temperature control zones at the first sampling time is calculated as the current average room temperature of the temperature control zones at the first sampling time. .

[0192] The average room temperature of the three representative temperature control zones at the second sampling time is calculated as the current average room temperature of the temperature control zones at the second sampling time. .

[0193] Obtain the current outdoor temperature at the first and second sampling times, respectively. and .

[0194] Calculate the average room temperature time-series deviation between the first and second sampling times, i.e., the overall change in average room temperature over time. .

[0195] Calculate the temporal deviation of outdoor temperature between the first and second sampling times, i.e., the overall change in outdoor temperature over time. .

[0196] The ratio between the time-series deviation of average room temperature and the time-series deviation of outdoor temperature was used as the influencing factor.

[0197] ;

[0198] Ideally, the impact factor It should be close to 0, meaning that the indoor temperature remains relatively constant while the outdoor temperature changes. The larger the absolute value of the influencing factor, the worse the compensation capability of the heat pump air conditioning system.

[0199] When the influencing factor exceeds the preset slope adjustment dead zone, the processing module calls the preset adjustment amplitude to adjust the slope value.

[0200] If the impact factor exceeds the preset upper limit threshold, the preset upward adjustment value is invoked to cumulatively increase the slope value of the baseline climate compensation model.

[0201] The upper threshold of the influence factor is a constant, pre-configured, and can be called at any time. For example, it can be configured to 0.3, meaning that when the outdoor temperature drops by 10°C, the indoor temperature drops by more than 3°C. In this case, the feedback is considered sluggish, meaning the slope value is too small and the compensation is insufficient, so the slope value is increased. The incremental adjustment amplitude is also a constant, pre-configured, and can be called at any time. The absolute value of the incremental adjustment amplitude is in the range of 0.1-0.3.

[0202] If the impact factor is lower than the preset lower threshold, the preset reverse adjustment magnitude is invoked to reversely reduce the slope value of the baseline climate compensation model.

[0203] The lower limit threshold of the impact factor is a constant, pre-configured, and can be called at any time. For example, it can be configured to -0.3, meaning that when the outdoor temperature drops by 10°C, the indoor temperature increases by more than 3°C. In this case, the feedback is considered excessive, i.e., the slope value is too large, the control is unstable, and the performance is poor; the slope value should be reduced. The reverse adjustment amplitude is also a constant, pre-configured, and can be called at any time. The absolute value of the reverse adjustment amplitude is in the range of 0.1-0.3.

[0204] In this application, it is preferable to adjust the intercept value first, and then adjust the slope value, thereby quickly correcting the overall deviation, simplifying the debugging process, and providing a stable basis for adjusting the slope value. If the slope value is adjusted first, and then the intercept value is adjusted, the deviation of the intercept value will be amplified, the parameter coupling will be intensified, and the debugging cycle will be prolonged.

[0205] Preferably, in some embodiments of this application, after correcting the slope value, the processing module waits for at least one complete baseline weather cycle (24-48 hours) before recalculating each representative temperature control area, calculating the average room temperature of the indoor temperature within the time interval, and making more fine adjustments.

[0206] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0207] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A heat pump air conditioning system, including: Water module, which includes: A water-fluoride heat exchanger, comprising: a heat exchange branch and a water supply branch; and Circulating water pump; The refrigerant transfers heat to the circulating water in the water supply branch of the water-fluorine heat exchanger through the heat exchange branch. Driven by the circulating water pump, the heated circulating water is delivered to the heat radiation indoor terminals distributed in the temperature control area; the heat pump air conditioning system provides heat through the heat radiation indoor terminals. Its characteristic is that it further includes: The processing module is configured to perform the following steps: Obtain the proportion of currently activated indoor radiant heating terminals to the total number of indoor radiant heating terminals, and use this as the current heating demand load rate. Based on the current heating demand load rate, the heat pump air conditioning system is configured to enter either an overall coordination mode or a local anomaly handling mode. In the overall coordination mode, it is permissible to perform water supply temperature compensation of the first intensity based on the water module's reference water supply temperature according to the terminal temperature difference feedback. In the local anomaly handling mode, the water supply temperature compensation is limited to a preset second intensity, and the second intensity is less than the first intensity; In the overall coordination mode, the current heating demand load rate is higher than that in the local anomaly handling mode.

2. The heat pump air conditioning system according to claim 1, characterized in that: The processing module is pre-configured with a climate compensation model, which is a linear function between the outdoor temperature and the reference water supply temperature of the water module. The processing module is configured to perform the following steps to obtain the reference water supply temperature of the water module: Obtain the current outdoor temperature of the environment where the heat pump air conditioning system is located; The current outdoor temperature is input as an independent variable into the climate compensation model to calculate the corresponding reference water supply temperature of the water module.

3. The heat pump air conditioning system according to claim 2, characterized in that: When the processing module is configured to perform the first intensity of water supply temperature compensation in the overall coordination mode, it shall execute the following steps: The current indoor temperature and the corresponding set indoor temperature of the temperature control area where multiple indoor thermal radiation terminals are located are obtained, so as to calculate the terminal temperature difference feedback of multiple indoor thermal radiation terminals. Identify the target deviation value representing the boundary heating gap in multiple terminal temperature difference feedbacks; Based on the target deviation value, a positive water supply temperature compensation value is generated using a preset proportional gain model. The positive water supply temperature compensation value is configured to be superimposed on the reference water supply temperature of the water module to generate a command water supply temperature for first-intensity water supply temperature compensation.

4. The heat pump air conditioning system according to claim 2, characterized in that: The processing module is configured to perform the following steps when, under the local anomaly handling mode, the water supply temperature compensation is limited to a preset second intensity: The current indoor temperature and the corresponding set indoor temperature of the temperature control area where multiple indoor thermal radiation terminals are located are obtained, so as to calculate the terminal temperature difference feedback of multiple indoor thermal radiation terminals. Identify the target deviation value representing the boundary heating gap in multiple terminal temperature difference feedbacks; When the target deviation value is not higher than the protection temperature difference threshold, the reference water supply temperature of the water module is used as the command water supply temperature; When the target deviation value is higher than the protection temperature difference threshold, the increment of the reference water supply temperature of the water module is limited to the preset protection water temperature increment threshold to generate the command water supply temperature so that it does not exceed the preset second intensity; at the same time, it is assumed that the terminal temperature difference feedback meets the preset early warning conditions, and a local abnormal signal is generated and a local abnormal alarm is triggered.

5. The heat pump air conditioning system according to claim 2, characterized in that: The processing module is also configured to: Based on the current heating demand load rate, the heat pump air conditioning system is configured to enter a balanced operation mode: in the balanced operation mode, the reference water supply temperature of the water module is used as the command water supply temperature; The current heating demand load rate in the balanced operation mode is lower than that in the overall coordination mode, but higher than that in the local anomaly handling mode.

6. The heat pump air conditioning system according to any one of claims 1 to 5, characterized in that: The processing module is pre-configured with a baseline climate compensation model, which is a linear function between the outdoor temperature and the baseline water supply temperature of the water module. The processing module is configured to perform the following steps to obtain the reference water supply temperature of the water module: Based on the current outdoor temperature and the current indoor temperature of the temperature control area, the slope and intercept values ​​of the baseline climate compensation model are dynamically updated to generate a dynamic climate compensation model; wherein, the slope value is configured to adjust the sensitivity of the baseline climate compensation model, and the intercept value is configured to respond to changes in the thermal environment of the heat pump air conditioning system. Obtain the current outdoor temperature of the environment where the heat pump air conditioning system is located; The current outdoor temperature is used as an independent variable to input into the corresponding dynamic climate compensation model to calculate the corresponding reference water supply temperature of the water module.

7. The heat pump air conditioning system according to claim 6, characterized in that: The processing module is configured to perform the following steps to dynamically update the intercept value of the baseline climate compensation model: Obtain the current indoor temperature of multiple temperature control zones; Obtain the set indoor temperature of multiple temperature control zones; Calculate the average room temperature deviation value, representing the overall heating intensity deviation, based on the current indoor temperature and the set indoor temperature. The intercept value of the benchmark climate compensation model is dynamically updated based on the average room temperature deviation value.

8. The heat pump air conditioning system according to claim 7, characterized in that: The processing module is configured to perform the following steps to dynamically update the intercept value of the baseline climate compensation model based on the mean room temperature deviation value: In response to the average room temperature deviation exceeding the preset intercept adjustment dead zone, the processing module calls the proportional gain coefficient to correct the intercept value: If the average room temperature deviation meets the first reference condition, the intercept value is adjusted by incrementing the heating intensity proportional gain coefficient. If the average room temperature deviation meets the second reference condition, the intercept value is adjusted by reducing the energy-saving attenuation proportional gain coefficient.

9. The heat pump air conditioning system according to claim 6, characterized in that: The processing module is configured to perform the following steps to dynamically update the slope value of the baseline climate compensation model: Calculate the impact factor, which is used to measure the degree of influence of the current outdoor temperature change on the current indoor temperature when the heat pump air conditioning system is running; If the impact factor exceeds the preset upper limit threshold, the slope value of the benchmark climate compensation model will be increased. If the impact factor is lower than the preset lower limit threshold, the slope value of the benchmark climate compensation model will be reduced in the opposite direction.

10. The heat pump air conditioning system according to claim 9, characterized in that: The processing module is configured to perform the following steps to calculate the influence factor: Obtain the current average room temperature of the temperature control area at the first and second sampling times; Obtain the current outdoor temperature corresponding to the first and second sampling times, respectively; Calculate the average room temperature timing deviation between the first sampling time and the second sampling time; Calculate the outdoor temperature time-series deviation between the first sampling time and the second sampling time; The ratio between the time-series deviation of the average room temperature and the time-series deviation of the outdoor temperature is used as the influencing factor.

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