Flexible regulation and control method for air conditioner, apparatus, computer device, storage medium and computer program product

Abstract

The present application is applicable to the technical field of air conditioners, and provides a flexible regulation and control method for an air conditioner, an apparatus, a computer device, a storage medium and a computer program product. The method comprises: when a predicted indoor air temperature value reaches an upper indoor comfort temperature limit value, giving a comfort level alarm; and, in response to the comfort level alarm and on the basis of a building heat balance model, adjusting the set value of an operating parameter until the comfort level alarm stops, using as the latest set value the set value of the operating parameter when the comfort level alarm stops and, on the basis of the latest set value, operating an air conditioner, the building heat balance model at least comprising an air conditioner model and a virtual battery model, and the virtual battery model comprising an association relationship between a building equivalent heat capacity and a virtual battery charge-discharge heating and cooling capacity. The solution in the embodiments of the present application can achieve accurate control of air conditioner power and indoor temperature.

Description

Air conditioning flexible control methods, devices, computer equipment, storage media and computer program products

[0001] This patent application claims priority to Chinese Patent Application No. 202411865788.2, filed on December 18, 2024, by China Construction Technology Group Co., Ltd. and China Construction Technology Group Beijing Low Carbon Smart City Technology Co., Ltd., entitled "Air Conditioning Flexible Control Method, Device, Computer Equipment and Computer Program Product", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of air conditioning control technology, and in particular relates to flexible air conditioning control methods, devices, computer equipment, storage media and computer program products. Background Technology

[0003] Typically, air conditioning accounts for 40% of a building's total energy consumption, and this figure can reach as high as 50% during peak summer months, making it a significant energy consumer. In practical applications, the operating status of air conditioners constantly adjusts due to weather changes and varying user behaviors, influenced by numerous factors. Therefore, despite the significant potential for flexible adjustment, the operating status of air conditioners is affected by many factors and constrained by user thermal comfort requirements. In demand-side response, simultaneously meeting the needs of response power, response time, and indoor user thermal comfort places higher demands on the flexible control of air conditioning systems. Existing research suggests that temperature can be adjusted to ensure indoor comfort, but the operating status of air conditioners is affected by many factors, making precise control difficult, and the duration of operation is uncontrollable. Triggering the maximum temperature may lead to sudden start-up or a sudden increase in power. Some studies have also explored targeted control of air conditioning unit power, but this is insufficient to guarantee indoor thermal comfort, or may require reducing control power and response time to avoid comfort issues. In summary, current technologies cannot achieve precise control of the air conditioning process and fail to fully exploit the flexible adjustment capabilities of air conditioning systems. Summary of the Invention

[0004] This application provides a flexible control method, device, computer equipment, storage medium, and computer program product for air conditioning, which can solve the problem that the existing technology cannot accurately control the power of air conditioning and indoor temperature, and it is difficult to simultaneously meet the requirements of energy saving and thermal comfort.

[0005] In a first aspect, embodiments of this application provide a flexible air conditioning control method, including:

[0006] When the predicted indoor air temperature reaches the upper limit of the indoor comfort temperature, a comfort alarm will be triggered.

[0007] In response to the aforementioned comfort alarm, the set values ​​of the operating parameters are adjusted according to the building thermal balance model until the comfort alarm stops. The set values ​​of the operating parameters at the time the comfort alarm stops are then used as the latest set values, and the air conditioner is operated according to the latest set values.

[0008] The aforementioned building thermal balance model includes at least an air conditioning model and a virtual battery model. The virtual battery model includes the relationship between the building's equivalent heat capacity and the charging and discharging of heat and cold by the virtual battery.

[0009] In one possible implementation of the first aspect, the air conditioning model includes at least one of the following: a fixed-frequency air conditioning model and a variable-frequency air conditioning model; the air conditioning model includes the dynamic correlation between air conditioning start-up and shutdown, air conditioning operating power and the air conditioning cooling / heating capacity;

[0010] The operating parameters include at least one of the following: the indoor temperature set by the air conditioner and the operating power of the air conditioner;

[0011] The building heat balance model includes the dynamic correlation between outdoor heat transfer, indoor heat disturbance, the charging and discharging heat of the virtual battery, and the cooling / heating capacity of the air conditioner.

[0012] For example, the above-mentioned fixed-frequency air conditioner model includes the dynamic correlation between air conditioner start / stop, indoor air conditioner set temperature, indoor air temperature, air conditioner control accuracy deviation, air conditioner energy efficiency ratio, air conditioner operating power, and air conditioner cooling / heating capacity.

[0013] The above-mentioned variable frequency air conditioner model includes the dynamic correlation between air conditioner start / stop, indoor air temperature, air conditioner indoor set temperature, air conditioner maximum operating frequency, air conditioner minimum operating frequency, air conditioner operating power, variable frequency air conditioner control function, and air conditioner cooling / heating capacity.

[0014] In one possible implementation of the first aspect, the aforementioned virtual battery model includes:

[0015] Equivalent heat capacity and equivalent heat release / coldness of building;

[0016] The combined equivalent heat capacity of phase change materials, building envelope, interior decoration, air conditioning system, and water system for storing building heat and cold performance;

[0017] The overall absorption / dissipation rate of heat and cold in buildings is determined by phase change materials, building envelope, interior decoration, air conditioning systems, and water systems.

[0018] In one possible implementation of the first aspect, a comfort alarm is triggered when the predicted indoor air temperature reaches the upper limit of the indoor comfort temperature, including:

[0019] If the predicted indoor air temperature for the previous unit of time is less than the upper limit of the comfort temperature, and the predicted indoor air temperature for the current moment is greater than the upper limit of the comfort temperature, then a comfort alarm will be triggered.

[0020] In one possible implementation of the first aspect, the indoor temperature setting and air conditioning operating power are flexibly adjusted according to the flexible control demand command without triggering a comfort alarm.

[0021] For example, in any implementation of the first aspect above, the method further includes: using a building heat balance model to determine the air conditioning cooling / heating capacity and air conditioning start / stop index values ​​based on the heat flow transferred through the building envelope, the total solar radiation heat dynamically entering the room through the transparent building envelope per unit time, the composite correlation between the fresh air sensible heat transfer process and the total air heat, the total heat dissipation, and the indoor air conditioning set temperature.

[0022] Secondly, embodiments of this application provide an air conditioning flexible control device, comprising:

[0023] The alarm module is configured to issue a comfort alarm when the predicted indoor air temperature reaches the upper limit of the indoor comfort temperature.

[0024] The control module is configured to adjust the set values ​​of the operating parameters according to the building thermal balance model until the comfort alarm stops, and then use the set values ​​of the operating parameters when the comfort alarm stops as the latest set values, and run the air conditioner according to the latest set values.

[0025] The aforementioned building thermal balance model includes at least an air conditioning model and a virtual battery model. The virtual battery model includes the relationship between the building's equivalent heat capacity and the charging and discharging heat of the virtual battery.

[0026] Thirdly, embodiments of this application provide a computer device, including:

[0027] A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method described in the first aspect.

[0028] Fourthly, embodiments of this application provide a computer storage medium storing a computer program that, when executed by a processor, implements the steps of the method described in the first aspect.

[0029] Fifthly, embodiments of this application provide a computer program product that, when run on a computer device, causes the computer device to perform any of the methods described in the first aspect above.

[0030] The beneficial effects of the embodiments in this application compared with the prior art are:

[0031] 1) Based on the predicted room temperature value, comfort alarms are issued, and operating parameters are adjusted according to the building heat balance model. This enables precise control of air conditioning power and indoor temperature, as well as precise control of air conditioning control time, while meeting the requirements of energy saving and thermal comfort.

[0032] 2) By adding a virtual battery model to the building thermal balance model, the influence of the building as a virtual battery for cold and heat storage can be considered during the control process, further improving the accuracy of flexible air conditioning control. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 is a flowchart of an embodiment of the air conditioning flexible control method provided in this application;

[0035] Figure 2 is a schematic diagram of a building thermal balance model structure provided in an embodiment of this application;

[0036] Figure 3 is a schematic diagram of the model structure of an air conditioning flexible control method provided in an embodiment of this application;

[0037] Figure 4 is a structural block diagram of an air conditioning flexible control device provided in an embodiment of this application;

[0038] Figure 5 is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0039] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0040] It should be understood that the term "comprising" indicates the presence of the described feature, whole, step, operation, element and / or component, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0041] It should also be understood that the term “and / or” refers to any combination of one or more of the associated listed items, as well as all possible combinations, and includes these combinations.

[0042] The term "if" can be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrases "if determination" or "if [the described condition or event] is detected" can be interpreted, depending on the context, as "once determination," "in response to determination," "once [the described condition or event] is detected," or "in response to detection."

[0043] In addition, the terms “first,” “second,” “third,” etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0044] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0045] The technical solutions in the embodiments of this application will be described in detail below.

[0046] Figure 1 is a flowchart of an air conditioning flexible control method according to an embodiment of this application. As shown in Figure 1, the method includes the following steps:

[0047] Step 101: When the predicted indoor air temperature reaches the upper limit of the indoor comfort temperature, a comfort alarm is triggered.

[0048] In this embodiment of the application, the air conditioning equipment can obtain the predicted value of indoor air temperature at a target time or within a target time period through a prediction model. If the predicted value of indoor air temperature is greater than the upper limit of indoor comfortable temperature, a comfort alarm will be triggered.

[0049] The prediction model may further include sub-models such as a weather prediction model, a user behavior prediction model, an air conditioning start-up time prediction model, a number of people prediction model, indoor equipment power usage prediction model, and lighting power prediction model. By combining the prediction results of these multiple models with factors such as weather, user behavior, air conditioning start-up time, number of people, equipment power usage, and lighting power usage, the predicted value of indoor air temperature can be determined. For example, the prediction model can make predictions based on collected historical data using artificial intelligence (AI) algorithms. Historical data may include meteorological parameters (such as solar radiation illuminance, temperature, and relative humidity) and user behavior data (such as the number of people indoors, equipment operating time, and equipment power). For example, this data can be collected in real-time or periodically by a data acquisition device, or historical data can be manually imported; this application does not impose any restrictions on this.

[0050] In this embodiment of the application, the air conditioning equipment can use a prediction model to perform day-ahead prediction and rolling prediction respectively. The day-ahead prediction refers to predicting the data for the entire day of the next day from the previous day. Based on the day-ahead prediction results, a control plan for the next day can be formulated. The rolling prediction can predict the data for the next hour. Combining the rolling prediction results, precise control can be implemented.

[0051] In this embodiment of the application, when a comfort alarm is triggered, if the predicted indoor air temperature value of the previous unit time is less than the upper limit of the comfort temperature, and the predicted indoor air temperature value at the current moment is greater than the upper limit of the comfort temperature, then a comfort alarm is triggered.

[0052] For example, a control signal model can be used to generate a comfort alarm and trigger control measures. This control signal model includes:

[0053] The value of the control signal index Y at time t is determined according to the following formula (1). t Value:

[0054] When T t-1 <T air，max And T t >T air，max At that time, Y t =0, otherwise Y t =1; formula (1)

[0055] Among them, T air，max T represents the upper limit of indoor comfortable temperature. t-1 Let T be the predicted indoor air temperature one unit of time prior to time t. t This represents the predicted indoor air temperature at time t; when Y tWhen the value is 0, a comfort alarm is triggered; otherwise, no comfort alarm is triggered. The value of the control signal indicator can be adjusted in real time or at specific time intervals. t Comfort alerts will continue to be issued during the period of =0 until Y. t =1. It should be noted that the above-mentioned control signal indicator Y... t The values ​​0 and 1 are just examples. In actual use, other values ​​can be used according to actual needs. This application does not restrict this.

[0056] In this embodiment, without triggering a comfort alarm, the indoor temperature and operating power of the air conditioner can be flexibly adjusted according to the flexible control requirement command. "Without triggering a comfort alarm" means that the comfort alarm conditions are not met; for example, this could be before a comfort alarm, after a comfort alarm stops, or in other situations where a comfort alarm is not triggered. The flexible control can be performed according to existing air conditioning flexible control methods, or it can be based on the building heat balance model described in step 102 to adjust the indoor temperature and operating power of the air conditioner.

[0057] Step 102: In response to the comfort alarm, adjust the set values ​​of the operating parameters according to the building thermal balance model until the comfort alarm stops. Use the set values ​​of the operating parameters when the comfort alarm stops as the latest set values ​​and run the air conditioner according to the latest set values.

[0058] In this embodiment, the building thermal balance model includes the dynamic correlation between outdoor heat transfer, indoor thermal disturbance, virtual battery charging / discharging heat and cooling, and air conditioning cooling / heating capacity. This building thermal balance model includes at least an air conditioning model and a virtual battery model to obtain the virtual battery charging / discharging heat and cooling capacity and the air conditioning cooling / heating capacity, respectively. The air conditioning model includes at least one of the following: the dynamic correlation between air conditioning start / stop, air conditioning operating power, and air conditioning cooling / heating capacity; the virtual battery model includes the correlation between the building's equivalent heat capacity and the virtual battery charging / discharging heat and cooling capacity. The virtual battery model includes: the building's equivalent heat capacity and equivalent charging / discharging heat and cooling capacity; the comprehensive equivalent heat capacity of the phase change materials, building envelope, interior decoration, air conditioning system, and water system for storing building heat and cooling capacity; and the comprehensive absorption / dissipation rates of the phase change materials, building envelope, interior decoration, air conditioning system, and water system for storing building heat and cooling capacity.

[0059] The air conditioning equipment can adjust its operating parameters (at least one of the indoor set temperature and the operating power of the air conditioner) based on the relevant thermal parameters obtained from the building thermal balance model. It can also determine a new predicted value of indoor air temperature for the determined operating parameters, compare the predicted value with the upper limit of the comfort temperature, and obtain the set value of the operating parameters at the time of the stop when the comfort alarm stops. The air conditioner can then be operated using the latest set value.

[0060] Figure 2 shows a schematic diagram of the building thermal balance model provided in this embodiment. As shown in Figure 2, the relevant thermal parameters in the building thermal balance model can include outdoor heat transfer and indoor thermal disturbance. Outdoor heat transfer can include parameters such as heat transfer through non-transparent building envelopes, solar radiation heat transfer through transparent building envelopes, and heat transfer through fresh air / infiltration air. Indoor thermal disturbance can include parameters such as indoor lighting, indoor occupants, and indoor equipment (excluding air conditioning and lighting equipment). The relevant parameters of outdoor heat transfer and indoor thermal disturbance can be calculated based on the building model and relevant historical data, or they can be obtained through manual input. Regarding the acquisition methods, there are already relatively mature existing technologies in this field, and these will not be listed one by one here.

[0061] To facilitate understanding of the process of adjusting the setpoints of the indoor air conditioning temperature and the air conditioning operating power based on the building thermal balance model, Figure 3 shows a schematic diagram of the model structure of the flexible air conditioning control method provided in this application embodiment. As shown in Figure 3, in addition to the building thermal balance model (which includes at least an air conditioning model and a virtual battery model), this flexible air conditioning control method may also include prediction models such as weather forecast models, and a signal control model for determining whether to issue a comfort alarm. During the flexible air conditioning control process, based on the predicted indoor air temperature value generated by the prediction results of the weather forecast model and other prediction models, the signal control model issues a comfort alarm when the predicted indoor air temperature reaches the upper limit of the indoor comfort temperature. In the case of a comfort alarm, the setpoints of the indoor air conditioning temperature and the air conditioning operating power are adjusted using the building thermal balance model according to the temperature / power control command. If the comfort alarm stops, the setpoints of the indoor air conditioning temperature and the air conditioning operating power at the time the alarm stops are taken as the latest setpoints, and the air conditioner is operated according to the latest setpoints.

[0062] In this embodiment, the air conditioning equipment can use a building heat balance model to determine the air conditioning cooling / heating capacity and air conditioning start / stop index values ​​based on the heat flow transferred by the building envelope, the total solar radiation heat dynamically entering the room through the transparent building envelope per unit time, the composite correlation between the fresh air sensible heat transfer process and the total air heat, the total heat dissipation, and the indoor air conditioning set temperature.

[0063] In this embodiment of the application, the building heat balance model can determine the air conditioning cooling / heating capacity and air conditioning start-stop index values ​​at time t using the building heat balance equation formula (2). After determining the air conditioning cooling / heating capacity and air conditioning start-stop index values, the operating parameters can also be determined based on these air conditioning cooling / heating capacity and air conditioning start-stop index values.

[0064] Among them, K ω For the overall heat transfer coefficient of the non-transparent outer envelope structure, S ω For the area of ​​the non-transparent outer envelope structure, K c For the overall heat transfer coefficient of the transparent outer envelope structure, Sc For the area of ​​the transparent outer enclosure structure; T out The outdoor temperature is T. air，out Outdoor air temperature, T air，in Indoor air temperature; (K) ω S ω +K c S c (T) out -T air，in ) represents the heat flow transmitted through the building envelope.

[0065] Where G is the total solar radiation, and S is the total solar radiation. hgc To optimize the overall solar heat gain coefficient of transparent building envelopes, GS hgc S c This represents the total solar radiation heat entering the room through the transparent enclosure per unit time.

[0066] Among them, V air The total fresh air volume is ρ, where ρ is the air density and C is the total fresh air volume. air V is the enthalpy of air. air ρ(T air，out -T air，in C air This relates to the complex relationship between the sensible heat transfer process of fresh air and the total heat of the air.

[0067] The total heat dissipation includes at least one of the following: heat from virtual battery charging and discharging, heat dissipation from total personnel, heat dissipation from total lighting, and heat dissipation from total equipment. Q v The heat generated during the charging and discharging of the virtual battery, where n is the number of people in the room, and C is the heat generated during the charging and discharging of the virtual battery. p For the overall heat dissipation of personnel, θ ι p is the heat dissipation coefficient of lighting power. ι For lighting operating power, θ o p is the heat dissipation coefficient of the equipment power. o Q represents the operating power of the equipment. ac For air conditioning cooling / heating, X t This refers to the air conditioning start / stop indicator value. For example, X... t A value of 1 indicates that the air conditioner is on, X t A value of 0 indicates that the air conditioner is off. Of course, other indicator values ​​can also be used to indicate whether the air conditioner is on or off.

[0068] In this embodiment, the air conditioning model in the building heat balance model may include a fixed-frequency air conditioning model and / or a variable-frequency air conditioning model, and different air conditioning models can be selected according to the actual situation. For example, the fixed-frequency air conditioning model may include the dynamic correlation between air conditioning start / stop, indoor air conditioning set temperature, indoor air temperature, air conditioning control accuracy deviation, air conditioning energy efficiency ratio, air conditioning operating power, and air conditioning cooling / heating capacity; the variable-frequency air conditioning model may include the dynamic correlation between air conditioning start / stop, indoor air temperature, air conditioning indoor set temperature, air conditioning maximum operating frequency, air conditioning minimum operating frequency, air conditioning operating power, variable-frequency air conditioning control function, and air conditioning cooling / heating capacity.

[0069] For example, the on and off states determined by the fixed-frequency air conditioner model can be described by the following formulas (3) to (6): X t =1,T air，in >(T set +ΔT) Formula (3) X t =0,T air，in <(T) set -ΔT) Formula (4) X t =X t-1 , (T set -ΔT)<T air，in <(T) set +ΔT) Formula (5) Q ac (t)=η ac p ac X t Formula (6)

[0070] Among them, T set Set the temperature for the indoor air conditioner, T air，in η represents the indoor air temperature, ΔT represents the air conditioning control accuracy deviation, and η represents the indoor air temperature. ac For air conditioner energy efficiency ratio, p ac This refers to the operating power of the air conditioner.

[0071] For example, the operating frequency of the air conditioner determined by the variable frequency air conditioner model can be explained by the following formulas (7) to (11): ΔT t >T on，max f t =f max Formula (7) ΔT t <T on，min f t =f min Formula (8) ΔTon，max >ΔT t >ΔT on，min f t =f min +f(ΔT t Formula (9) ΔT t <ΔT off Air conditioner shutdown formula (10) Q ac (t)=η ac f t Formula (11)

[0072] Where, ΔT t T is the temperature difference between the indoor air temperature and the indoor air conditioner set temperature. on，max T is the temperature difference between the indoor air temperature and the indoor air conditioner's set temperature when the air conditioner is running at its maximum frequency. on，min ΔT is the temperature difference between the indoor air temperature and the set temperature of the air conditioner when it is running at its minimum frequency. off f is the temperature difference between the indoor air temperature and the indoor air conditioner's set temperature when the air conditioner is not running. t Let f be the operating frequency of the air conditioner at time t. max f is the maximum operating frequency of the air conditioner. min f(ΔT) is the minimum operating frequency of the air conditioner. t ) is the control function for the variable frequency air conditioner.

[0073] In this embodiment of the application, for the virtual battery model in the building thermal balance model, the building's equivalent heat capacity can be: the combined equivalent heat capacity of the phase change materials, building envelope, soft furnishings, air conditioning system, and water system that store the building's cooling and heating performance (i.e., the virtual battery equivalent heat capacity). The virtual battery model may include: Q v (t)=C v dT

[0074] Among them, C v The comprehensive equivalent heat capacity of the virtual battery.

[0075] In this embodiment, when adjusting the set values ​​of the indoor temperature and operating power of the air conditioner according to the building heat balance model, an algorithm aimed at maximizing flexibility can be used to automatically calculate the maximum adjustable power value and the optimal indoor temperature value of the air conditioner. Here, flexibility refers to the ratio of the maximum adjustable power to the operating power; a larger ratio indicates a wider adjustable power range and greater flexibility. The algorithm refers to an algorithm aimed at finding the maximum value to calculate the air conditioner operating power and indoor temperature value.

[0076] To facilitate understanding of the control effects achievable by the embodiments of this application, the following example uses a fixed-frequency air conditioner in cooling mode:

[0077] 1) Air conditioning operates normally (without adjustment): During the time period from t1 to t2, the indoor temperature set by the air conditioner is T. set The air conditioner operates at power P0, and runs twice during this period, with durations of Δt and Δt respectively. 0-1 and △t 0-2 At other times, the air conditioner's power is 0, and the indoor air temperature remains stable at T. set ±ΔT.

[0078] 2) Only adjust the indoor temperature setting of the air conditioner: During the time period from t1 to t2, at t 1-2 Always keep the indoor temperature set from T set Adjust to T1 (T1>T) set And T1 < T air，max The operating power remains constant at P0, and the air conditioner runs once during this period, with a duration of Δt. 1-1 The indoor air temperature remains stable at T1±ΔT, and no alarm is triggered during air conditioner use, meaning the indoor air temperature does not exceed the upper limit of thermal comfort. Due to potential power rebound during this period, the air conditioner capacity can be reduced to 0.

[0079] 3) Simultaneously adjust the indoor temperature setting and air conditioner operating power: During the time period from t1 to t2, at t 1-2 Always keep the indoor temperature set from T set Adjust to T1 (T1>T) set And T1 < T air，max The operating power will be kept at p1, the indoor air temperature will be stable at T1±ΔT, and no alarm will occur during air conditioning use, meaning the indoor air temperature will not exceed the upper limit of thermal comfort. During this period, the air conditioning capacity can be reduced from p0 to p1.

[0080] 4) Adjustment under comfort alarm conditions: During the time period from t1 to t2, at t 1-2 Always keep the indoor temperature set from T set Adjust to T1 (T1>T) set And T1 < T air，max The system operates at a power level of p2 (p2 < p1), but the indoor temperature continues to rise, and an alarm sounds during air conditioning use because the indoor air temperature exceeds the upper limit of the indoor comfort temperature. This indicates that this solution is not feasible, and the air conditioning power needs to be increased until the thermal comfort requirements for the entire period of air conditioning use are met.

[0081] This concludes the description of the process shown in Figure 1.

[0082] The following technical effects can be achieved through the process shown in Figure 1:

[0083] 1) Based on the predicted indoor air temperature, a comfort alarm is issued, and the indoor set temperature and operating power of the air conditioner are adjusted according to the building heat balance model. This provides effective feedback on the feasibility of the control method, enabling precise control of the air conditioner power and indoor temperature, and accurate monitoring of the air conditioner's operating status. It also meets the requirements of energy saving and thermal comfort, and avoids situations where the air conditioner exceeds the comfort range when operating according to this control method.

[0084] 2) By adding a virtual battery model to the building thermal balance model, the influence of the building as a virtual battery for cold and heat storage can be considered during the control process, further improving the accuracy of flexible air conditioning control.

[0085] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0086] Corresponding to the air conditioning flexible control method described in the above embodiments, Figure 4 shows a structural block diagram of the air conditioning flexible control device provided in this application embodiment. For ease of explanation, only the parts related to this application embodiment are shown. Referring to Figure 4, the device includes an alarm module 401 and a control module 402, wherein:

[0087] Alarm module 401 is configured to issue a comfort alarm when the predicted indoor air temperature reaches the upper limit of the indoor comfort temperature.

[0088] The control module 402 is configured to adjust the set values ​​of the operating parameters according to the building thermal balance model until the comfort alarm stops, and use the set values ​​of the operating parameters when the comfort alarm stops as the latest set values, and run the air conditioner according to the latest set values;

[0089] The building thermal balance model includes at least an air conditioning model and a virtual battery model. The virtual battery model includes the relationship between the building's equivalent heat capacity and the charging and discharging of heat and cold by the virtual battery.

[0090] In this embodiment of the application, the air conditioning model includes at least one of the following: a fixed-frequency air conditioning model and a variable-frequency air conditioning model; the air conditioning model includes the dynamic correlation between air conditioning start-up and shutdown, air conditioning operating power and air conditioning cooling / heating capacity;

[0091] The operating parameters include at least one of the following: the indoor temperature set by the air conditioner and the operating power of the air conditioner;

[0092] The building heat balance model includes the dynamic correlation between outdoor heat transfer, indoor heat disturbance, the charging and discharging heat of the virtual battery, and the cooling / heating capacity of the air conditioner.

[0093] In this embodiment of the application, the above-mentioned fixed-frequency air conditioner model includes the dynamic correlation between air conditioner start / stop, indoor air conditioner set temperature, indoor air temperature, air conditioner control accuracy deviation, air conditioner energy efficiency ratio, air conditioner operating power, and air conditioner cooling / heating capacity.

[0094] The above-mentioned variable frequency air conditioner model includes the dynamic correlation between air conditioner start / stop, indoor air temperature, air conditioner indoor set temperature, air conditioner maximum operating frequency, air conditioner minimum operating frequency, air conditioner operating power, variable frequency air conditioner control function, and air conditioner cooling / heating capacity.

[0095] In this embodiment of the application, the virtual battery model includes: building equivalent heat capacity and equivalent charging and discharging heat capacity;

[0096] The combined equivalent heat capacity of phase change materials, building envelope, interior decoration, air conditioning system, and water system for storing building heat and cold performance;

[0097] The overall absorption / dissipation rate of heat and cold in buildings is determined by phase change materials, building envelope, interior decoration, air conditioning systems, and water systems.

[0098] In this embodiment of the application, the alarm module 401 is configured to issue a comfort alarm if the predicted value of the indoor air temperature in the previous unit of time is less than the upper limit of the comfort temperature, and the predicted value of the indoor air temperature at the current moment is greater than the upper limit of the comfort temperature.

[0099] In this embodiment, the control module 402 is configured to flexibly control the indoor temperature and air conditioning operating power according to the flexible control demand command without triggering a comfort alarm.

[0100] In this embodiment of the application, the control module 402 is configured to use the building heat balance model to determine the air conditioning cooling / heating capacity and air conditioning start / stop index values ​​based on the heat flow transferred by the building envelope, the total solar radiation heat dynamically entering the room through the transparent building envelope per unit time, the composite correlation between the fresh air sensible heat transfer process and the total air heat, the total heat dissipation, and the indoor air conditioning set temperature.

[0101] It should be noted that the information interaction and execution process between the above-mentioned devices / units / modules are based on the same concept as the method embodiments of this application. For details on their functions and the resulting technical effects, please refer to the method embodiments section, which will not be repeated here.

[0102] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0103] This application also provides a computer device, which includes: at least one processor, a memory, and a computer program stored in the memory and executable on the at least one processor. When the processor executes the computer program, it implements the steps in any of the above-described method embodiments. Figure 5 is a schematic diagram of the structure of a computer device provided in an embodiment of this application. As shown in Figure 5, the computer device of this embodiment includes: at least one processor 50 (only one is shown in Figure 5), a memory 51, and a computer program 52 stored in the memory 51 and executable on the at least one processor 50. When the processor 50 executes the computer program 52, it implements the steps in any of the above-described visual programming method embodiments.

[0104] The computer device may include, but is not limited to, a processor 50 and a memory 51. Those skilled in the art will understand that Figure 5 is merely an example of a computer device and does not constitute a limitation on the computer device. It may include more or fewer components than shown, or combine certain components, or different components, such as input / output devices, network access devices, etc.

[0105] The processor 50 can be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0106] In some embodiments, the memory 51 may be an internal storage unit of the computer device, such as a hard disk or memory. In other embodiments, the memory 51 may be an external storage device of the computer device, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc. Furthermore, the memory 51 may include both internal and external storage units of the computer device. The memory 51 is used to store the operating system, applications, bootloader, data, and other programs, such as the program code of the computer program. The memory 51 can also be used to temporarily store data that has been output or will be output.

[0107] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps described in the various method embodiments above.

[0108] This application provides a computer program product that, when run on a mobile terminal, enables the mobile terminal to implement the steps described in the above-described method embodiments.

[0109] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying computer program code to a device / computer equipment, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0110] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0111] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0112] In the embodiments provided in this application, it should be understood that the disclosed apparatus / computer devices and methods can be implemented in other ways. For example, the apparatus / computer device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0113] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0114] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

[0115] .

Claims

1. A flexible control method for air conditioning, the method being executed by an air conditioning device, the method comprising: When the predicted indoor air temperature reaches the upper limit of the indoor comfort temperature, a comfort alarm will be triggered. In response to the comfort alarm, the set values ​​of the operating parameters are adjusted according to the building thermal balance model until the comfort alarm stops. The set values ​​of the operating parameters at the time the comfort alarm stops are taken as the latest set values, and the air conditioner is operated according to the latest set values. The building thermal balance model includes at least an air conditioning model and a virtual battery model. The virtual battery model includes the relationship between the building's equivalent heat capacity and the charging and discharging heat of the virtual battery.

2. The method as described in claim 1, wherein, The air conditioning model includes at least one of the following: a fixed-frequency air conditioning model and a variable-frequency air conditioning model; the air conditioning model includes the dynamic correlation between air conditioning start-up and shutdown, air conditioning operating power and air conditioning cooling / heating capacity; The operating parameters include at least one of the following: the indoor temperature set by the air conditioner and the operating power of the air conditioner; The building heat balance model includes the dynamic correlation between outdoor heat transfer, indoor heat disturbance, the charging and discharging heat of the virtual battery, and the cooling / heating capacity of the air conditioner.

3. The method according to claim 2, wherein, The fixed-frequency air conditioner model includes the dynamic correlation between air conditioner start / stop, indoor air conditioner set temperature, indoor air temperature, air conditioner control accuracy deviation, air conditioner energy efficiency ratio, air conditioner operating power, and air conditioner cooling / heating capacity. The variable frequency air conditioner model includes the dynamic correlation between air conditioner start / stop, indoor air temperature, air conditioner indoor set temperature, air conditioner maximum operating frequency, air conditioner minimum operating frequency, air conditioner operating power, variable frequency air conditioner control function, and air conditioner cooling / heating capacity.

4. The method according to claim 2, wherein, The virtual battery model includes: Equivalent heat capacity and equivalent heat release / coldness of building; The combined equivalent heat capacity of phase change materials, building envelope, interior decoration, air conditioning system, and water system for storing building heat and cold performance; The overall absorption / dissipation rate of heat and cold in buildings is determined by phase change materials, building envelope, interior decoration, air conditioning systems, and water systems.

5. The method according to claim 1, wherein, The provision that a comfort alarm is triggered when the predicted indoor air temperature reaches the upper limit of the indoor comfort temperature includes: If the predicted indoor air temperature for the previous unit of time is less than the upper limit of the comfort temperature, and the predicted indoor air temperature for the current moment is greater than the upper limit of the comfort temperature, then a comfort alarm will be triggered.

6. The method according to claim 1, wherein, The method further includes: Without triggering a comfort alarm, the indoor temperature setting and air conditioning operating power are flexibly adjusted according to the flexible control requirements.

7. The method according to any one of claims 1-6, wherein, The method further includes: Using a building heat balance model, based on the heat flow transferred through the building envelope, the total solar radiation heat dynamically entering the room through the transparent building envelope per unit time, the composite correlation between the sensible heat transfer process of fresh air and the total heat of the air, the total heat dissipation, and the indoor air conditioning set temperature, the cooling / heating capacity and air conditioning start-up index values ​​of the air conditioning are determined.

8. An air conditioning flexible control device, comprising: The alarm module is configured to issue a comfort alarm when the predicted indoor air temperature reaches the upper limit of the indoor comfort temperature. The control module is configured to adjust the set values ​​of the operating parameters according to the building thermal balance model until the comfort alarm stops, and use the set values ​​of the operating parameters when the comfort alarm stops as the latest set values, and run the air conditioner according to the latest set values; The building thermal balance model includes at least an air conditioning model and a virtual battery model. The virtual battery model includes the relationship between the building's equivalent heat capacity and the charging and discharging heat of the virtual battery.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method as claimed in any one of claims 1 to 7.

10. A computer program product, when run on a computer device, causes the computer device to perform the method as described in any one of claims 1 to 7.

11. A computer storage medium storing computer-executable instructions, which, when executed by a processor, implement the method of any one of claims 1 to 7.

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