Air conditioner control method, electronic equipment, air conditioner and storage medium

Abstract

The invention discloses an air conditioner control method, electronic equipment, an air conditioner and a storage medium. The air conditioner control method is applied to the air conditioner comprising multiple refrigeration modes, and comprises the following mode switching control methods: obtaining current equipment operation parameters and environment temperature parameters of the air conditioner; according to the current equipment operation parameters, the environment temperature parameters and the refrigeration mode control function, a target refrigeration mode is determined; under the condition that the target refrigeration mode is different from the current refrigeration mode, the air conditioner is controlled to be switched to the target refrigeration mode; wherein the equipment operation parameters comprise a refrigeration mode and a load rate; the refrigeration mode comprises a full-natural refrigeration mode and further comprises a natural-compressor mixed refrigeration mode and / or a compressor refrigeration mode; the refrigeration mode control function is used for determining a mode control parameter according to an environment temperature parameter and a load rate, and the mode control parameter is used for determining the target refrigeration mode.

Description

Technical Field

[0001] The present disclosure relates to, but is not limited to, the technical field of air-conditioning control, and in particular to an air-conditioning control method, an electronic device, an air-conditioner, and a storage medium. Background Art

[0002] Based on the characteristics of data center year-round cooling, traditional year-round compressor cooling can no longer meet customers' requirements for data center PUE (Power Usage Effectiveness, i.e., power utilization efficiency). Therefore, when the ambient temperature is lower than the room temperature, solutions using natural cold sources for cooling (direct evaporative cooling, indirect evaporative cooling, refrigerant pump circulation and other technologies) have been continuously promoted in the industry. Therefore, the cooling mode is usually divided into compressor mode, mixed mode (partial natural cooling), and full natural cooling mode. However, at this stage, the control parameters of each mode switch of the equipment in the industry are set in a single way, which cannot meet the energy-saving needs of complex and changeable actual application scenarios. Summary of the invention

[0003] The embodiments of the present disclosure provide an air conditioning control method, an electronic device, an air conditioner and a storage medium. The cooling mode control function of the air conditioner is used to determine the target cooling mode according to the collected equipment operating parameters and ambient temperature parameters, so that the cooling mode control process is more accurate and meets various actual installation conditions and changes in operating conditions during continuous operation, thereby achieving the optimal energy saving goal.

[0004] The embodiment of the present disclosure provides an air conditioning control method, which is applied to an air conditioning including multiple cooling modes, and includes the following mode switching control method:

[0005] Get the current equipment operating parameters and ambient temperature parameters of the air conditioner;

[0006] Determining a target cooling mode according to the current equipment operating parameters, ambient temperature parameters and cooling mode control function;

[0007] When the target cooling mode is different from the current cooling mode, controlling the air conditioner to switch to the target cooling mode;

[0008] Wherein, the equipment operation parameters include: cooling mode and load rate;

[0009] The refrigeration mode includes: a full natural refrigeration mode, and also includes: a natural-compressor mixed refrigeration mode and / or a compressor refrigeration mode;

[0010] The cooling mode control function is used to determine a mode control parameter according to an ambient temperature parameter and a load rate, and the mode control parameter is used to determine the target cooling mode.

[0011] The present disclosure also provides an electronic device, including:

[0012] one or more processors;

[0013] a storage device for storing one or more programs,

[0014] When the one or more programs are executed by the one or more processors, the one or more processors implement the air conditioning control method as described in any embodiment of the present disclosure.

[0015] The disclosed embodiment also provides an air conditioner, including a natural cold source refrigeration module, a compressor refrigeration module and an air conditioner control device;

[0016] The air conditioning control device is configured to obtain current equipment operating parameters and ambient temperature parameters of the air conditioner; and is also configured to determine a target cooling mode according to the current equipment operating parameters, ambient temperature parameters and cooling mode control function;

[0017] The air conditioning control device is further configured to control the start and stop of the natural cold source refrigeration module and the compressor refrigeration module when the target refrigeration mode is different from the current refrigeration mode, so that the air conditioning switches to the target refrigeration mode;

[0018] Wherein, the equipment operation parameters include: cooling mode and load rate;

[0019] The refrigeration mode includes: a full natural refrigeration mode, and also includes: a natural-compressor mixed refrigeration mode and / or a compressor refrigeration mode;

[0020] The cooling mode control function is used to determine a mode control parameter according to an ambient temperature parameter and a load rate, and the mode control parameter is used to determine the target cooling mode.

[0021] An embodiment of the present disclosure further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the air conditioning control method as described in any embodiment of the present disclosure when running.

[0022] Other aspects will be apparent upon reading and understanding the drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the solutions of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 This is a flow chart of an air conditioning control method in an embodiment of the present disclosure;

[0025] Figure 2 It is a schematic diagram of a dynamic correction process of a function of a relationship between indoor and outdoor temperature difference and load rate in a natural cooling mode in an embodiment of the present disclosure;

[0026] Figure 3 Schematic diagram of function curves corresponding to two cooling mode control functions in the embodiment of the present disclosure;

[0027] Figure 4 It is a structural schematic diagram of an air conditioning control device in an embodiment of the present disclosure;

[0028] Figure 5 It is a structural schematic diagram of an air conditioner in an embodiment of the present disclosure.

[0029] The realization of the objectives, functional features and advantages of the present invention will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the scheme of the present invention to clearly and completely describe the technical solutions in the embodiments of the scheme of the present invention. Obviously, the described embodiments are only part of the embodiments of the scheme of the present invention, rather than all the embodiments. Based on the embodiments in the scheme of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the scheme of the present invention.

[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, in the scheme of the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the scheme of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the scheme of the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the scheme of the present invention can be understood according to specific circumstances.

[0034] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] In some feasible air conditioning and refrigeration module control schemes, a single, fixed control parameter is used to control mode switching. For example, when the outdoor temperature falls into different set temperature ranges, different cooling modes are used accordingly. It can be seen that this type of scheme is not flexible enough and cannot switch modes according to the changing indoor and outdoor environmental conditions and changing cooling loads during actual operation. It is also impossible to match precise and specific energy-saving control schemes for the differences from the factory nominal values ​​caused by the different installation heights of the indoor and outdoor units and the different lengths of the connecting pipes between the indoor and outdoor units. It is even more impossible to match precise and specific energy-saving control schemes for the performance degradation caused by the aging of air-conditioning equipment and the dirty and blocked heat exchangers, which greatly reduces the energy-saving control effect.

[0036] The present disclosure provides an air conditioning control method, which is applied to an air conditioning including multiple cooling modes, such as Figure 1 As shown, the mode switching control method includes the following:

[0037] Step 110, obtaining the current equipment operating parameters and ambient temperature parameters of the air conditioner;

[0038] Step 120, determining a target cooling mode according to current equipment operating parameters, ambient temperature parameters and cooling mode control function;

[0039] Step 130, when the target cooling mode is different from the current cooling mode, controlling the air conditioner to switch to the target cooling mode;

[0040] Wherein, the equipment operation parameters include: cooling mode and load rate;

[0041] The refrigeration mode includes: a full natural refrigeration mode, and also includes: a natural-compressor mixed refrigeration mode and / or a compressor refrigeration mode;

[0042] The cooling mode control function is used to determine the mode control parameter according to the ambient temperature parameter and the load rate.

[0043] In some exemplary embodiments, the cooling mode control function is dynamically modified during the operation of the air conditioner according to actual equipment operating parameters and corresponding ambient temperature parameters when the air conditioner is in a full natural cooling mode.

[0044] It should be noted that the full natural cooling mode is also called the full natural cooling mode, which means that only natural cold sources (such as wind, water, etc.) are used to achieve cooling by direct evaporation, indirect evaporation or natural cold source pump circulation; the natural-compressor mixed cooling mode is also called the mixed cooling mode, which means that part of the cooling is done by natural cold sources and the other part is done by compressors. It can be understood that, under the premise of meeting the cooling demand, more use of natural cold sources for cooling can effectively reduce the energy consumption of the air-conditioning system.

[0045] In some exemplary embodiments, the ambient temperature parameter includes: an indoor-outdoor temperature difference ΔT.

[0046] In some exemplary embodiments, the ambient temperature parameters further include: indoor temperature T1 and outdoor temperature T2.

[0047] In some exemplary embodiments, the device operating parameters further include one or more of the following:

[0048] The speed percentage of cooling medium conveying equipment rpm%, the power of cooling medium conveying equipment P.

[0049] In some exemplary embodiments, the cooling medium conveying device includes: a fan and / or a water pump. Other types of cooling medium conveying devices may also correspond to different cooling media, which is not limited to the aspects of the examples of the present disclosure.

[0050] In some exemplary embodiments, the ambient temperature parameter further includes: an inlet temperature T3 of the cooling medium conveying equipment and / or an outlet temperature T4 of the cooling medium conveying equipment.

[0051] It should be noted that, in the absence of conflict, the specific parameters included in the equipment operation parameters in different embodiments can be selected according to the need to determine the target cooling mode, and are not limited to specific aspects. The specific parameters included in the ambient temperature parameters can be selected according to the need to determine the target cooling mode, and are not limited to specific aspects.

[0052] In some exemplary embodiments, the device operating parameters further include one or more of the following:

[0053] Design the inlet and outlet temperature difference of cooling medium ΔT1, the rated flow volume_base of cooling medium transportation equipment, the flow and power relationship function Q(P) of cooling medium transportation equipment, the relationship function between indoor and outdoor temperature difference and load rate in full natural cooling mode ΔT2(Load), and the relationship function between indoor and outdoor temperature difference and load rate in natural-compressor mixed cooling mode ΔT3(Load);

[0054] Among them, P is power and Load is load rate.

[0055] In some exemplary embodiments, the flow-power relationship function Q(P) of the cooling medium transport equipment is obtained from the fixed-frequency or variable-frequency flow-power performance curve of the cooling medium transport equipment, or obtained through regression calculation of experimental test data, and is not limited to specific aspects.

[0056] In some exemplary embodiments, the initial function of the indoor and outdoor temperature difference and load rate relationship function ΔT2(Load) in the full natural cooling mode is determined after regression processing of simulation or experimental test data in the full natural cooling mode. In some exemplary embodiments, the indoor and outdoor temperature difference and load rate relationship function ΔT2(Load) in the full natural cooling mode is dynamically corrected according to actual equipment operating parameters and corresponding ambient temperature parameters during the operation of the air conditioner.

[0057] In some exemplary embodiments, the initial function of the indoor and outdoor temperature difference and load rate relationship function ΔT3(Load) in the natural-compressor hybrid refrigeration mode is determined after regression processing of simulation or experimental test data in the natural-compressor hybrid refrigeration mode.

[0058] In some exemplary embodiments, the indoor-outdoor temperature difference and load rate relationship function ΔT3 (Load) in the natural-compressor hybrid cooling mode is dynamically modified according to actual equipment operating parameters and corresponding ambient temperature parameters during the operation of the air conditioner.

[0059] In some exemplary embodiments, the load rate is calculated based on the flow rate Q of the cooling medium conveying device of the air conditioner and the rated cooling capacity.

[0060] In some exemplary embodiments, load rate = current cooling capacity / rated cooling capacity; wherein, the current cooling capacity is calculated based on the flow rate of the cooling medium conveying equipment, the inlet and outlet temperature difference of the cooling medium conveying equipment, the specific heat capacity of the cooling medium and the density of the cooling medium.

[0061] It should be noted that the load rate of the air conditioner reflects the percentage of the actual load of the air conditioner to the design load, and can also be calculated according to other feasible solutions in the art, and is not limited to the aspects of the examples disclosed herein.

[0062] In some exemplary embodiments, the cooling mode control function includes:

[0063] The cooling mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in a fully natural cooling mode;

[0064] Optionally, the refrigeration mode control function includes: a relationship function between the indoor and outdoor temperature difference and the load rate in a fully natural refrigeration mode and a relationship function between the indoor and outdoor temperature difference and the load rate in a natural-compressor mixed refrigeration mode.

[0065] The mode control parameter determined by the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode is the first indoor and outdoor temperature difference; the mode control parameter determined by the relationship function between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed cooling mode is the second indoor and outdoor temperature difference;

[0066] The first indoor-outdoor temperature difference is greater than the second indoor-outdoor temperature difference.

[0067] That is, the first indoor and outdoor temperature difference ΔT2 = ΔT2 (Load), and the second indoor and outdoor temperature difference ΔT3 = ΔT3 (Load).

[0068] It can be understood that when the cooling mode control function includes the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode, the corresponding control parameter determined is the first indoor and outdoor temperature difference ΔT2; when the cooling mode control function includes the relationship function between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed refrigeration mode, the corresponding control parameter determined is the second indoor and outdoor temperature difference ΔT3; when the cooling mode control function includes the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural refrigeration mode and the relationship function between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed refrigeration mode, the corresponding control parameters determined include the first indoor and outdoor temperature difference ΔT2 and the second indoor and outdoor temperature difference ΔT3.

[0069] In some exemplary embodiments, the cooling mode in the current equipment operation parameters of the air conditioner is also referred to as the current cooling mode. The load rate in the current equipment operation parameters of the air conditioner is also referred to as the current load rate.

[0070] In some exemplary embodiments, the indoor and outdoor temperature difference ΔT is determined according to the indoor temperature T1 and the outdoor temperature T2 in the ambient temperature parameters, that is, ΔT= T1 - T2 .

[0071] In some exemplary embodiments, when the cooling mode includes: a full natural cooling mode and a compressor cooling mode, the cooling mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode.

[0072] In some exemplary embodiments, when the refrigeration mode includes: a fully natural refrigeration mode and a natural-compressor mixed refrigeration mode, the refrigeration mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in the fully natural refrigeration mode and a function of the relationship between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed refrigeration mode.

[0073] In some exemplary embodiments, when the cooling mode includes: a full natural cooling mode, a natural-compressor mixed cooling mode and a compressor cooling mode, the cooling mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode and a function of the relationship between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed cooling mode;

[0074] Accordingly, step 120 includes at least one of the following:

[0075] According to the relationship function ΔT2(Load) between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode, determine the first indoor and outdoor temperature difference ΔT2 corresponding to the load rate in the current equipment operation parameters, and determine that the target cooling mode is the full natural cooling mode when the first indoor and outdoor temperature difference ΔT2 and the indoor and outdoor temperature difference ΔT in the current equipment operation parameters meet the first constraint condition; wherein the first constraint condition is: the indoor and outdoor temperature difference ΔT in the current equipment operation parameters is greater than the first indoor and outdoor temperature difference ΔT2;

[0076] According to the function ΔT2(Load) of the relationship between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode, determine the first indoor and outdoor temperature difference ΔT2 corresponding to the load rate in the current equipment operation parameters, and according to the function ΔT3(Load) of the relationship between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed cooling mode, determine the second indoor and outdoor temperature difference ΔT3 corresponding to the load rate in the current equipment operation parameters, and when the first indoor and outdoor temperature difference ΔT2, the second indoor and outdoor temperature difference ΔT3 and the indoor and outdoor temperature difference ΔT in the current equipment operation parameters meet the second constraint condition, determine that the target cooling mode is the natural-compressor mixed cooling mode; wherein the second constraint condition is: the indoor and outdoor temperature difference ΔT in the current equipment operation parameters is less than or equal to the first indoor and outdoor temperature difference ΔT2, and the indoor and outdoor temperature difference ΔT in the current equipment operation parameters is greater than the second indoor and outdoor temperature difference ΔT3;

[0077] According to the relationship function ΔT3 (Load) between the indoor and outdoor temperature difference and the load rate in the natural-compressor hybrid refrigeration mode, the second indoor and outdoor temperature difference ΔT3 corresponding to the load rate in the current equipment operating parameters is determined; when the second indoor and outdoor temperature difference ΔT3 and the indoor and outdoor temperature difference ΔT in the current equipment operating parameters meet the third constraint condition, the target refrigeration mode is determined to be the compressor refrigeration mode; wherein the third constraint condition is: the indoor and outdoor temperature difference ΔT in the current equipment operating parameters is less than or equal to the second indoor and outdoor temperature difference ΔT3.

[0078] The first constraint condition is also recorded as condition A: ΔT>ΔT2, where ΔT=T1-T2, ΔT2=ΔT2(Load), ΔT2(Load) is the relationship function between the indoor and outdoor temperature difference and the load rate in the current full natural cooling mode, which is the initial function or the dynamically modified function, and Load is the current load rate. It can be seen that when the first constraint condition is met, the target cooling mode is determined to be the full natural cooling mode, indicating that the cooling capacity of the full natural cooling mode can meet the cooling demand under the current load rate Load. At this time, if the current cooling mode of the air conditioner is the compressor cooling mode or the natural-compressor mixed cooling mode, it is necessary to switch to the full natural cooling mode.

[0079] The second constraint condition is also recorded as condition B: ΔT2≥ΔT>ΔT3, where ΔT=T1-T2, ΔT2=T2(Load), ΔT3=T3(Load), ΔT2(Load) is the relationship function between the indoor and outdoor temperature difference and the load rate in the current full natural cooling mode, which is the initial function or the function after dynamic modification, ΔT3(Load) is the relationship function between the indoor and outdoor temperature difference and the load rate in the current natural-compressor mixed cooling mode, which is the initial function or the function after dynamic modification, and Load is the current load rate. It can be seen that when the second constraint condition is met, the target cooling mode is determined to be the natural-compressor mixed cooling mode, indicating that the system energy efficiency of the mixed mode under the current load rate Load is better than the compressor cooling mode energy efficiency, and the conditions for entering the full natural cooling mode are not met. At this time, if the current cooling mode of the air conditioner is the compressor cooling mode, it needs to be switched to the natural-compressor mixed cooling mode.

[0080] The third constraint condition is also recorded as condition C: ΔT≤ΔT3, ΔT=T1-T2, ΔT3=ΔT3(Load), ΔT3(Load) is the relationship function between the indoor and outdoor temperature difference and the load rate in the current natural-compressor mixed cooling mode, which is the initial function or the dynamically modified function, and Load is the current load rate. It can be seen that when the third constraint condition is met, the target cooling mode is determined to be the compressor cooling mode, indicating that the system energy efficiency of the compressor cooling mode under the current load rate Load is better than the mixed mode energy efficiency, and the conditions for entering the full natural cooling mode are not met. At this time, if the current cooling mode of the air conditioner is the natural-compressor mixed cooling mode, it needs to switch to the compressor cooling mode.

[0081] In some exemplary embodiments, the method further comprises: determining a target cooling mode according to the current equipment operating parameters and ambient temperature parameters;

[0082] Among them, the equipment operation parameters also include: power indication parameters of the working components;

[0083] The ambient temperature parameters also include: the inlet temperature of the cooling medium conveying device and / or the outlet temperature of the cooling medium conveying device;

[0084] The determining the target cooling mode according to the current equipment operating parameters and the ambient temperature parameters includes:

[0085] In the current equipment operation parameters, the refrigeration mode is the full natural refrigeration mode. When the current equipment operation parameters, the inlet temperature T3 of the cooling medium conveying device and the outlet temperature T4 of the cooling medium conveying device meet the fourth constraint condition, the target refrigeration mode is determined to be the natural-compressor mixed refrigeration mode or the compressor refrigeration mode.

[0086] Among them, the fourth constraint condition is: in the full natural refrigeration mode, the power indication parameter of the working component in the current equipment operating parameters reaches the corresponding rated value, the inlet temperature T3 of the cooling medium conveying equipment in the current equipment operating parameters is greater than the first set inlet temperature or the outlet temperature T4 of the cooling medium conveying equipment in the current equipment operating parameters is greater than the second set outlet temperature.

[0087] The fourth constraint condition is also recorded as condition D: the power indication parameter of the working component in the current equipment operating parameters reaches the corresponding rated value, T3 is greater than the first set inlet temperature or T4 is greater than the second set outlet temperature. It can be seen that when condition D is met, it means that the maximum cooling capacity of the full natural cooling mode under the current load rate cannot meet the current cooling load demand. If the current cooling mode of the air conditioner is the full natural cooling mode, it is necessary to switch to the natural-compressor mixed cooling mode or the compressor cooling mode. Among them, the first set inlet temperature and the first set outlet temperature are independently set according to the air conditioner model, and are not limited to specific values.

[0088] In some exemplary embodiments, the working component includes: a cooling medium conveying device and / or a refrigerant pump. The cooling medium conveying device includes: a fan or a water pump, or other types. The fan is also called an indoor fan.

[0089] In some exemplary embodiments, the power indication parameter of the working component includes: power or rotation speed.

[0090] For example, the power indication parameters of the working component include one or more of the following: fan speed, fan power, fluorine pump speed and fluorine pump power, and the corresponding rated values ​​are: fan rated speed, fan rated power, fluorine pump rated speed and fluorine pump rated power.

[0091] In some exemplary embodiments, when the power indication parameters of the working component include multiple ones, the fourth constraint condition D is: in the full natural cooling mode, the power indication parameter of any working component included in the current equipment operating parameters reaches its corresponding rated value, T3 is greater than the first set inlet temperature or T4 is greater than the second set outlet temperature.

[0092] For example, the equipment operating parameters include the refrigerant pump power, and the fourth constraint condition D is: in the full natural cooling mode, the refrigerant pump power in the current equipment operating parameters reaches the rated power of the refrigerant pump in the air conditioner, T3 is greater than the first set inlet temperature or T4 is greater than the second set outlet temperature.

[0093] For another example, the equipment operating parameters include the refrigerant pump power and the fan speed, and the fourth constraint condition D is: in the full natural cooling mode, the refrigerant pump power in the current equipment operating parameters reaches the rated power of the refrigerant pump in the air conditioner, or the fan speed reaches the rated speed of the fan in the air conditioner, T3 is greater than the first set inlet temperature or T4 is greater than the second set outlet temperature.

[0094] It should be noted that, depending on the different cooling modes included in the air conditioner, in the absence of conflict, the specific aspects of determining the target cooling mode may include aspects corresponding to one or more of the above-mentioned constraint conditions.

[0095] In some exemplary embodiments, the refrigeration mode includes: a fully natural refrigeration mode, and also includes: a natural-compressor mixed refrigeration mode and / or a compressor refrigeration mode, and the refrigeration mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in the fully natural refrigeration mode; or includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in the fully natural refrigeration mode and a function of the relationship between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed refrigeration mode; accordingly, the specific aspects of determining the target refrigeration mode include the aspects corresponding to the above-mentioned 4 constraints.

[0096] In some exemplary embodiments, the control conditions A, B, and C are all provided with corresponding control hysteresis, which are respectively recorded as control hysteresis a, control hysteresis b, and control hysteresis c.

[0097] It should be noted that the cooling mode control function in the embodiment of the present disclosure can be implemented in various forms such as correspondence tables, formulas, models, etc., and is not limited to specific aspects.

[0098] In some exemplary embodiments, the method further includes the following cooling mode control function correction method:

[0099] While the air conditioner is operating in the full natural cooling mode, the following steps are periodically performed according to a set interval:

[0100] Obtain equipment operating parameters and ambient temperature parameters at the corresponding time;

[0101] Determine the corresponding first indoor and outdoor temperature difference ΔT2 according to the load rate in the equipment operation parameters and the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode;

[0102] When the indoor and outdoor temperature difference ΔT in the ambient temperature parameter is less than or equal to the first indoor and outdoor temperature difference ΔT2-the first temperature difference offset A, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated so that the first indoor and outdoor temperature difference ΔT2' calculated according to the updated function is equal to the first indoor and outdoor temperature difference ΔT2-the first temperature difference increment δ_1 calculated according to the function before the update;

[0103] When the indoor and outdoor temperature difference ΔT in the ambient temperature parameters is ≥ the first indoor and outdoor temperature difference ΔT2 + the second temperature difference offset B, and the equipment operation parameters, the inlet temperature T3 of the cooling medium conveying equipment in the ambient temperature parameters and the outlet temperature T4 of the cooling medium conveying equipment in the ambient temperature parameters meet the fourth constraint condition, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated, so that the first indoor and outdoor temperature difference ΔT2' calculated according to the updated function is equal to the first indoor and outdoor temperature difference ΔT2 + the second temperature difference increment δ_2 calculated by the function before the update; wherein the fourth constraint condition is: in the full natural cooling mode, the power indication parameter of the working component in the equipment operation parameters reaches the corresponding rated value, the inlet temperature T3 of the cooling medium conveying equipment in the ambient temperature parameters is greater than the first set inlet temperature or the outlet temperature T4 of the cooling medium conveying equipment in the current ambient temperature parameters is greater than the second set outlet temperature;

[0104] When the indoor and outdoor temperature difference ΔT in the ambient temperature parameters is less than or equal to the first indoor and outdoor temperature difference ΔT2 + the third temperature difference offset C, the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode is updated so that the updated function is restored to the initial function corresponding to the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode.

[0105] In some exemplary embodiments, the first temperature offset A is the control hysteresis a in the first constraint condition.

[0106] In some exemplary embodiments, the second temperature offset B is a control hysteresis b in the second constraint condition.

[0107] In some exemplary embodiments, the third temperature offset C is the control hysteresis c in the first constraint condition.

[0108] It can be understood that in some exemplary embodiments, the cooling mode control function dynamic correction process is as follows: Figure 2 As shown: When ΔT≤ΔT2-A (denoted as satisfying condition E), it means that in the actual operation process, the indoor and outdoor temperature difference and load rate relationship function ΔT2(Load) in the current full natural cooling mode is used. The first indoor and outdoor temperature difference ΔT2 calculated according to the current load rate is too small. The function value calculated by ΔT2(Load) will be reduced by δ_1 to obtain the corrected function ΔT2'(Load), which will overwrite the previous function ΔT2(Load) and save it.

[0109] When ΔT≥ΔT2+B (denoted as satisfying condition F), and the current equipment operating parameters, the inlet temperature T3 of the cooling medium conveying equipment and the outlet temperature T4 of the cooling medium conveying equipment satisfy the fourth constraint condition (denoted as satisfying condition D), it indicates that in the actual operation process, the indoor and outdoor temperature difference and load rate function ΔT2(Load) under the current full natural cooling mode is adopted. The first indoor and outdoor temperature difference ΔT2 calculated according to the current load rate is too large. The function value calculated by ΔT2(Load) will be increased by δ_2 to obtain the corrected function ΔT2'(Load), which will overwrite the previous function ΔT2(Load) and save it.

[0110] In the case of ΔT≤ΔT2+C (represented as satisfying condition G), it means that in the actual operation process, the function value calculated by the indoor and outdoor temperature difference and load rate function ΔT2(Load) in the current full natural cooling mode is close to the function value calculated by the initial function of ΔT2(Load), and the corrected function ΔT2'(Load) will be restored to the initial function, that is, the initial state of the function is restored. It can be understood that after the air-conditioning system is maintained and / or parts are replaced, it is possible to restore to the initial state in terms of working energy efficiency. At this time, the continuously corrected cooling mode control function is also restored to the initial state accordingly.

[0111] In some exemplary embodiments, the relationship function between the indoor and outdoor temperature difference and the load rate in the natural-compressor hybrid refrigeration mode is also dynamically corrected.

[0112] In some exemplary embodiments, the indoor-outdoor temperature difference and load factor relationship function in the natural-compressor mixed cooling mode is corrected according to the corrected indoor-outdoor temperature difference and load factor relationship function in the full natural cooling mode.

[0113] In some exemplary embodiments, the updated indoor-outdoor temperature difference and load rate relationship function ΔT3'(Load) in the natural-compressor mixed cooling mode and the updated indoor-outdoor temperature difference and load rate relationship function ΔT2'(Load) in the full natural cooling mode satisfy the following relationship:

[0114] ΔT2'(Load)-ΔT2(Load)=α*(ΔT3'(Load)-ΔT3(Load));

[0115] Among them, ΔT2(Load) is the relationship function between the indoor and outdoor temperature difference and the load rate in the fully natural cooling mode before the update, ΔT3(Load) is the relationship function between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed refrigeration mode before the update, α is the set correction coefficient, and Load is the load rate.

[0116] Among them, the second indoor and outdoor temperature difference calculated according to the updated indoor and outdoor temperature difference and load rate relationship function in the natural-compressor mixed refrigeration mode is recorded as ΔT3', the first indoor and outdoor temperature difference calculated according to the updated indoor and outdoor temperature difference and load rate relationship function in the full natural refrigeration mode is recorded as ΔT2', the second indoor and outdoor temperature difference calculated according to the indoor and outdoor temperature difference and load rate relationship function in the natural-compressor mixed refrigeration mode before the update is recorded as ΔT3, and the first indoor and outdoor temperature difference calculated according to the indoor and outdoor temperature difference and load rate relationship function in the full natural refrigeration mode before the update is recorded as ΔT2, which satisfies the following relationship:

[0117] ΔT2'-ΔT2=α*(ΔT3'-ΔT3).

[0118] In some exemplary embodiments, the correction coefficient α≥1.

[0119] In some exemplary embodiments, the correction coefficient α is determined according to an inverse proportion to a designed natural cold source refrigeration capacity contribution ratio of a corresponding operating condition in a natural-compressor mixed refrigeration mode.

[0120] In some exemplary embodiments, the operating status is indicated by an indoor-outdoor temperature difference indication, or a system load rate indication.

[0121] In some exemplary embodiments, according to the current operating condition of the air conditioner, a preset corresponding relationship between the operating condition and the correction coefficient is searched to determine the correction coefficient α.

[0122] For example, the operating condition is indicated by the indoor and outdoor temperature difference. When the indoor and outdoor temperature difference is 10 degrees, the designed natural cold source cooling capacity contribution ratio in the natural-compressor mixed cooling mode is 50%, and the correction coefficient is 2 at this time; when the indoor and outdoor temperature difference is 5 degrees, the designed natural cold source cooling capacity contribution ratio in the natural-compressor mixed cooling mode is 25%, and the correction coefficient is 4 at this time; ... The preset operating condition and correction coefficient correspondence relationship includes a plurality of correction coefficients corresponding to the indoor and outdoor temperature differences.

[0123] When updating the indoor and outdoor temperature difference and load rate relationship function ΔT3 (Load) in the natural-compressor hybrid refrigeration mode, the preset operating condition and correction coefficient correspondence is searched according to the current indoor and outdoor temperature difference to determine the correction coefficient α corresponding to the current operating condition (indoor and outdoor temperature difference).

[0124] It should be noted that the specific values ​​in the above examples are only used to illustrate the correlation between the data. The actual available values ​​can be determined based on the simulation or test data of various types of air conditioners.

[0125] It can be understood that the load rate is used to indicate the operating condition, and the preset corresponding relationship between the operating condition and the correction coefficient includes correction coefficients corresponding to a plurality of load rates. More detailed examples are not recorded one by one here.

[0126] In some exemplary embodiments, the preset correspondence between the operating status and the correction coefficient may be in various forms such as a mapping relationship table, a function or a model, and is not limited to a specific aspect.

[0127] In some exemplary embodiments, in the refrigeration mode control function correction method, when the indoor and outdoor temperature difference and load rate relationship function in the full natural refrigeration mode is restored to the initial function, the indoor and outdoor temperature difference and load rate relationship function in the natural-compressor mixed refrigeration mode is also restored to its corresponding initial function, or, the indoor and outdoor temperature difference and load rate relationship function in the natural-compressor mixed refrigeration mode is updated based on the relationship between the above two functions, based on the indoor and outdoor temperature difference and load rate relationship function in the restored full natural refrigeration mode, without limitation to specific aspects.

[0128] In some exemplary embodiments, the initial function corresponding to the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is determined in advance after regression processing based on simulation data or experimental test data in the full natural cooling mode.

[0129] In some exemplary embodiments, the initial function corresponding to the indoor and outdoor temperature difference and load rate relationship function in the natural-compressor hybrid refrigeration mode is determined in advance after regression processing based on simulation data or experimental test data in the natural-compressor hybrid refrigeration mode.

[0130] It should be noted that the first indoor and outdoor temperature difference ΔT2 calculated according to the two functions is greater than the second indoor and outdoor temperature difference ΔT3, which means that the first indoor and outdoor temperature difference ΔT2 calculated according to the functions before the two functions are updated is greater than the second indoor and outdoor temperature difference ΔT3; the first indoor and outdoor temperature difference ΔT2' calculated according to the functions after the two functions are updated is also greater than the second indoor and outdoor temperature difference ΔT3'. In some exemplary embodiments, the updated function curve diagram is as follows: Figure 3 shown.

[0131] It should be noted that the air conditioning control scheme proposed in the embodiment of the present disclosure is applicable to the switching control of air conditioners including the above three cooling modes, and is also applicable to the switching control of air conditioners including a full natural cooling mode + another cooling mode. When switching control is performed on an air conditioner including two cooling modes, the corresponding specific control logic and control function correction scheme can be adjusted accordingly.

[0132] For example, in some exemplary embodiments, the refrigeration mode includes: a full natural refrigeration mode and a compressor refrigeration mode;

[0133] Accordingly, the cooling mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode, and the corresponding determined mode control parameter is the first indoor and outdoor temperature difference ΔT2;

[0134] The determining the target cooling mode according to the current equipment operating parameters, the ambient temperature parameters and the cooling mode control function includes:

[0135] According to the relationship function ΔT2(Load) between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode, determine the first indoor and outdoor temperature difference ΔT2 corresponding to the load rate in the current equipment operation parameters, and determine the target cooling mode to be the full natural cooling mode when the first indoor and outdoor temperature difference ΔT2 and the indoor and outdoor temperature difference ΔT in the current ambient temperature parameters meet the first constraint condition; wherein the first constraint condition is: the indoor and outdoor temperature difference ΔT in the current equipment operation parameters> the first indoor and outdoor temperature difference ΔT2;

[0136] When the cooling mode in the current equipment operating parameters is the full natural cooling mode, and the current equipment operating parameters, T3 in the ambient temperature parameters, and T4 in the ambient temperature parameters meet the fourth constraint condition, the target cooling mode is determined to be the compressor cooling mode; wherein, the fourth constraint condition is: in the full natural cooling mode, the power indication parameter of the working component in the current equipment operating parameters reaches the corresponding rated value, the current inlet temperature T3 of the cooling medium conveying equipment is greater than the first set inlet temperature or the current outlet temperature T4 of the cooling medium conveying equipment is greater than the second set outlet temperature.

[0137] Accordingly, the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode is modified according to the following method:

[0138] When the air conditioner is operating in natural cooling mode, the following steps are performed periodically according to the set intervals:

[0139] Get the ambient temperature parameters at the time corresponding to the equipment operating parameters;

[0140] Determine the corresponding first indoor and outdoor temperature difference ΔT2 according to the equipment operation parameters and the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode;

[0141] When the indoor and outdoor temperature difference ΔT in the equipment operation parameters is less than or equal to the first indoor and outdoor temperature difference ΔT2-the first temperature difference offset A, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated so that the first indoor and outdoor temperature difference ΔT2' calculated according to the updated function is equal to the first indoor and outdoor temperature difference ΔT2-the first temperature difference increment δ_1 calculated according to the function before the update;

[0142] In the equipment operation parameters, when the indoor and outdoor temperature difference ΔT≥the first indoor and outdoor temperature difference ΔT2+the second temperature difference offset B, and the current equipment operation parameters, the inlet temperature T3 of the cooling medium conveying equipment, and the outlet temperature T4 of the cooling medium conveying equipment meet the fourth constraint condition, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated, so that the first indoor and outdoor temperature difference ΔT2' calculated according to the updated function is equal to the first indoor and outdoor temperature difference ΔT2+the second temperature difference increment δ_2 calculated according to the function before the update;

[0143] When the indoor and outdoor temperature difference ΔT in the equipment operation parameters is less than or equal to the first indoor and outdoor temperature difference ΔT2+the third temperature difference offset C, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated so that the updated function is restored to the initial function corresponding to the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode;

[0144] Among them, the fourth constraint condition is: in the full natural refrigeration mode, the power indication parameter of the working component in the equipment operation parameter reaches the corresponding rated value, the inlet temperature T3 of the cooling medium conveying equipment in the ambient temperature parameter is greater than the first set inlet temperature or the outlet temperature T4 of the cooling medium conveying equipment in the current ambient temperature parameter is greater than the second set outlet temperature.

[0145] The first temperature difference offset A, the second temperature difference offset B, and the third temperature difference offset C are flexibly and independently set according to air conditioning characteristics.

[0146] For example, in some exemplary embodiments, the refrigeration modes include: a full natural refrigeration mode and a natural-compressor mixed refrigeration mode;

[0147] Accordingly, the refrigeration mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in the full natural refrigeration mode and a function of the relationship between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed refrigeration mode, and the corresponding determined mode control parameters are the first indoor and outdoor temperature difference ΔT2 and the second indoor and outdoor temperature difference ΔT3;

[0148] The determining the target cooling mode according to the current equipment operating parameters, the ambient temperature parameters and the cooling mode control function includes:

[0149] According to the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode, determine the first indoor and outdoor temperature difference ΔT2 corresponding to the load rate in the current equipment operation parameters, and determine the target cooling mode to be the full natural cooling mode when the first indoor and outdoor temperature difference ΔT2 and the indoor and outdoor temperature difference ΔT in the current equipment operation parameters meet the first constraint condition; wherein the first constraint condition is: the indoor and outdoor temperature difference ΔT in the current equipment operation parameters> the first indoor and outdoor temperature difference ΔT2;

[0150] When the refrigeration mode in the current equipment operating parameters is the full natural refrigeration mode, and the current equipment operating parameters, the inlet temperature T3 of the cooling medium conveying equipment and the outlet temperature T4 of the cooling medium conveying equipment in the ambient temperature parameters meet the fourth constraint condition, the target refrigeration mode is determined to be the natural-compressor mixed refrigeration mode; wherein, the fourth constraint condition is: in the full natural refrigeration mode, the power indication parameter of the working component in the current equipment operating parameters reaches the corresponding rated value, the current inlet temperature T3 of the cooling medium conveying equipment is greater than the first set inlet temperature or the current outlet temperature T4 of the cooling medium conveying equipment is greater than the second set outlet temperature.

[0151] Accordingly, the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode is modified according to the following method:

[0152] While the air conditioner is operating in the full natural cooling mode, the following steps are periodically performed according to a set interval:

[0153] Obtain equipment operating parameters and ambient temperature parameters at the corresponding time;

[0154] Determine a first indoor and outdoor temperature difference ΔT2 corresponding to the equipment operation parameters and the indoor and outdoor temperature difference and load rate relationship function ΔT2(Load) in the full natural cooling mode;

[0155] When the indoor and outdoor temperature difference ΔT in the equipment operation parameters is less than or equal to the first indoor and outdoor temperature difference ΔT2-the first temperature difference offset A, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated so that the first indoor and outdoor temperature difference ΔT2' calculated according to the updated function is equal to the first indoor and outdoor temperature difference ΔT2-the first temperature difference increment δ_1 calculated according to the function before the update;

[0156] In the equipment operation parameters, when the indoor and outdoor temperature difference ΔT≥the first indoor and outdoor temperature difference ΔT2+the second temperature difference offset B, and the current equipment operation parameters, the inlet temperature T3 of the cooling medium conveying equipment, and the outlet temperature T4 of the cooling medium conveying equipment meet the fourth constraint condition, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated, so that the first indoor and outdoor temperature difference ΔT2' calculated according to the updated function is equal to the first indoor and outdoor temperature difference ΔT2+the second temperature difference increment δ_2 calculated according to the function before the update;

[0157] When the indoor and outdoor temperature difference ΔT in the equipment operation parameters is less than or equal to the first indoor and outdoor temperature difference ΔT2+the third temperature difference offset C, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated so that the updated function is restored to the initial function corresponding to the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode;

[0158] Among them, the fourth constraint condition is: in the full natural refrigeration mode, the power indication parameter of the working component in the equipment operation parameter reaches the corresponding rated value, the inlet temperature T3 of the cooling medium conveying equipment in the ambient temperature parameter is greater than the first set inlet temperature or the outlet temperature T4 of the cooling medium conveying equipment in the current ambient temperature parameter is greater than the second set outlet temperature.

[0159] The first temperature difference offset A, the second temperature difference offset B, and the third temperature difference offset C are flexibly and independently set according to air conditioning characteristics.

[0160] The present disclosure also provides an air conditioning control device 40, such as Figure 4 As shown, including,

[0161] The parameter acquisition module 410 is configured to acquire the current equipment operation parameters and ambient temperature parameters of the air conditioner;

[0162] A target cooling mode determination module 420 is configured to determine a target cooling mode according to the current device operating parameters, ambient temperature parameters and cooling mode control function;

[0163] A switching module 430 is configured to control the air conditioner to switch to the target cooling mode when the target cooling mode is different from the current cooling mode;

[0164] Wherein, the equipment operation parameters include: cooling mode and load rate;

[0165] The equipment operation parameters include: cooling mode and load rate;

[0166] The refrigeration mode includes: a full natural refrigeration mode, and also includes: a natural-compressor mixed refrigeration mode and / or a compressor refrigeration mode;

[0167] The cooling mode control function is used to determine a mode control parameter according to an ambient temperature parameter and a load rate, and the mode control parameter is used to determine the target cooling mode.

[0168] The present disclosure also provides an air conditioner, such as Figure 5 As shown, it includes a natural cold source refrigeration module 510, a compressor refrigeration module 520 and an air conditioning control device 40;

[0169] The air conditioning control device 40 is configured to obtain the current equipment operating parameters and ambient temperature parameters of the air conditioner; and is also configured to determine the target cooling mode according to the current equipment operating parameters, ambient temperature parameters and cooling mode control function;

[0170] The air conditioning control device 40 is further configured to control the start and stop of the natural cold source refrigeration module and the compressor refrigeration module, so that the air conditioning switches to the target refrigeration mode, when the target refrigeration mode is different from the current refrigeration mode;

[0171] Among them, the equipment operating parameters include: cooling mode and load rate;

[0172] The refrigeration modes include: full natural refrigeration mode, and also include: natural-compressor mixed refrigeration mode and / or compressor refrigeration mode;

[0173] The cooling mode control function is used to determine the mode control parameters according to the ambient temperature parameters and the load rate, and the mode control parameters are used to determine the target cooling mode.

[0174] Wherein, the natural cold source refrigeration module includes: a refrigerant pump, and the compressor refrigeration module includes: a compressor.

[0175] In some exemplary embodiments, the natural cold source refrigeration module further includes: an evaporator, a condenser, a refrigerant tank and an electronic expansion valve.

[0176] In some exemplary embodiments, the compressor refrigeration module further includes: an evaporator, a condenser, a refrigerant tank, and an electronic expansion valve.

[0177] In some exemplary embodiments, the compressor refrigeration module and the natural cold source refrigeration module share the same set of evaporator, condenser, refrigerant tank and electronic expansion valve.

[0178] In some exemplary embodiments, the air conditioner comprises: a fluorine pump dual-cycle air conditioner.

[0179] The more detailed air conditioning component structure will not be discussed further here, and it can be implemented according to the feasible solution of multi-cooling mode air conditioning.

[0180] It can be seen that when the air conditioner is in the compressor cooling mode, the natural cold source refrigeration module stops working and the compressor refrigeration module starts working; when the air conditioner is in the full natural refrigeration mode, the natural cold source refrigeration module starts working and the compressor refrigeration module stops working; when the air conditioner is in the natural-compressor mixed refrigeration mode, the natural cold source refrigeration module starts working and the compressor refrigeration module starts working.

[0181] It should be noted that Figure 5 It is intended to exemplarily represent that in the natural-compressor mixed refrigeration mode, both the compressor refrigeration module and the natural cold source refrigeration module participate in refrigeration.

[0182] An embodiment of the present disclosure further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the air conditioning control method as described in any embodiment of the present disclosure when running.

[0183] The air conditioning control scheme provided by the embodiment of the present disclosure determines the target cooling mode according to the current equipment operating parameters, ambient temperature parameters and cooling mode control function; wherein the cooling mode control function is used to determine the mode control parameters according to the load rate to determine the target cooling mode. In some examples, the cooling mode control function is dynamically modified according to the actual equipment operating parameters and the ambient temperature parameters at the corresponding moment during the continuous operation of the air conditioner. It can be understood that the air conditioning cooling mode control scheme provided by the embodiment of the present disclosure performs cooling mode switching control according to the real-time load rate and ambient temperature parameters of the air conditioner operation, and can accurately control the system energy efficiency index to the optimal level according to the actual situation of the system operation; further, the cooling mode control function is dynamically modified during the continuous operation process, ensuring that the determined target cooling mode is the result obtained based on the latest air conditioning operating environment and working conditions, and can automatically adapt to the specific installation characteristics of the air conditioner and the changes in various factors that affect the actual performance of the air conditioner during the continuous operation process, so that the switching control of the multi-cooling mode air conditioner is more accurate, and the optimal energy consumption control target is achieved under the premise of meeting the cooling demand.

[0184] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0185] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made under the conception of the present invention and the contents of the description and drawings of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air conditioning control method, applied to an air conditioning including multiple cooling modes, characterized in that: The following mode switching control methods are included: Get the current equipment operating parameters and ambient temperature parameters of the air conditioner; Determining a target cooling mode according to the current equipment operating parameters, ambient temperature parameters and cooling mode control function; When the target cooling mode is different from the current cooling mode, controlling the air conditioner to switch to the target cooling mode; Wherein, the equipment operation parameters include: cooling mode and load rate; The refrigeration mode includes: a full natural refrigeration mode, and also includes: a natural-compressor mixed refrigeration mode and / or a compressor refrigeration mode; The cooling mode control function is used to determine a mode control parameter according to an ambient temperature parameter and a load rate, and the mode control parameter is used to determine the target cooling mode.

2. The air conditioning control method according to claim 1, characterized in that: The environmental temperature parameters include: indoor and outdoor temperature difference; The cooling mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in a fully natural cooling mode; Alternatively, the refrigeration mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in a full natural refrigeration mode and a function of the relationship between the indoor and outdoor temperature difference and the load rate in a natural-compressor mixed refrigeration mode; The mode control parameter determined by the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode is the first indoor and outdoor temperature difference; the mode control parameter determined by the relationship function between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed cooling mode is the second indoor and outdoor temperature difference; The first indoor-outdoor temperature difference is greater than the second indoor-outdoor temperature difference.

3. The air conditioning control method according to claim 2, characterized in that: In the case where the refrigeration mode includes: a full natural refrigeration mode, a natural-compressor mixed refrigeration mode and a compressor refrigeration mode, the refrigeration mode control function includes: a function of the relationship between the indoor and outdoor temperature difference and the load rate in the full natural refrigeration mode and a function of the relationship between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed refrigeration mode; The determining of the target cooling mode according to the current equipment operating parameters, the ambient temperature parameters and the cooling mode control function comprises at least one of the following: According to the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode, determine the first indoor and outdoor temperature difference ΔT2 corresponding to the load rate in the current equipment operation parameter, and determine that the target cooling mode is the full natural cooling mode when the first indoor and outdoor temperature difference ΔT2 and the indoor and outdoor temperature difference ΔT in the current ambient temperature parameter meet the first constraint condition; wherein the first constraint condition is: the indoor and outdoor temperature difference ΔT in the current ambient temperature parameter is greater than the first indoor and outdoor temperature difference ΔT2; According to the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode, the first indoor and outdoor temperature difference ΔT2 corresponding to the load rate in the current equipment operation parameters is determined; according to the relationship function between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed cooling mode, the second indoor and outdoor temperature difference ΔT3 corresponding to the load rate in the current equipment operation parameters is determined; when the first indoor and outdoor temperature difference ΔT2, the second indoor and outdoor temperature difference ΔT3 and the indoor and outdoor temperature difference ΔT in the current ambient temperature parameters meet the second constraint condition, the target cooling mode is determined to be the natural-compressor mixed cooling mode; wherein the second constraint condition is: the indoor and outdoor temperature difference ΔT in the current ambient temperature parameters is less than or equal to the first indoor and outdoor temperature difference ΔT2, and the indoor and outdoor temperature difference ΔT in the current ambient temperature parameters is greater than the second indoor and outdoor temperature difference ΔT3; According to the relationship function between the indoor and outdoor temperature difference and the load rate in the natural-compressor hybrid refrigeration mode, the second indoor and outdoor temperature difference ΔT3 corresponding to the load rate in the current equipment operation parameters is determined; when the second indoor and outdoor temperature difference ΔT3 and the indoor and outdoor temperature difference ΔT in the current ambient temperature parameters meet the third constraint condition, the target refrigeration mode is determined to be the compressor refrigeration mode; wherein the third constraint condition is: the indoor and outdoor temperature difference ΔT in the current ambient temperature parameters is less than or equal to the second indoor and outdoor temperature difference ΔT3.

4. The air conditioning control method according to claim 1, characterized in that: The method further includes: determining a target cooling mode according to the current equipment operating parameters and ambient temperature parameters; Wherein, the equipment operation parameters also include: power indication parameters of the working components; The ambient temperature parameters also include: the inlet temperature of the cooling medium conveying device and / or the outlet temperature of the cooling medium conveying device; The determining the target cooling mode according to the current equipment operating parameters and the ambient temperature parameters includes: When the refrigeration mode in the current equipment operation parameters is the full natural refrigeration mode, and the current equipment operation parameters, the inlet temperature T3 of the cooling medium conveying device and the outlet temperature T4 of the cooling medium conveying device in the current ambient temperature parameters meet the fourth constraint condition, the target refrigeration mode is determined to be the natural-compressor mixed refrigeration mode or the compressor refrigeration mode; Among them, the fourth constraint condition is: in the full natural refrigeration mode, the power indication parameter of the working component in the current equipment operation parameters reaches the corresponding rated value, the inlet temperature T3 of the cooling medium conveying equipment in the current ambient temperature parameters is greater than the first set inlet temperature or the outlet temperature T4 of the cooling medium conveying equipment in the current ambient temperature parameters is greater than the second set outlet temperature.

5. The air conditioning control method according to any one of claims 1 to 4, characterized in that: The method also includes the following refrigeration mode control function correction method: While the air conditioner is operating in the full natural cooling mode, the following steps are periodically performed according to a set interval: Obtain equipment operating parameters and ambient temperature parameters at the corresponding time; Determine a corresponding first indoor and outdoor temperature difference ΔT2 according to the load rate in the equipment operation parameters and the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode; When the indoor and outdoor temperature difference ΔT in the ambient temperature parameter is less than or equal to the difference between the first indoor and outdoor temperature difference ΔT2 and the first temperature difference offset A, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated so that the first indoor and outdoor temperature difference ΔT2' calculated according to the updated function is equal to the difference between the first indoor and outdoor temperature difference ΔT2 calculated according to the function before the update and the first temperature difference increment δ_1; When the indoor and outdoor temperature difference ΔT in the ambient temperature parameter is greater than or equal to the sum of the first indoor and outdoor temperature difference ΔT2 and the second temperature difference offset B, and the equipment operation parameters, the inlet temperature T3 of the cooling medium conveying equipment in the ambient temperature parameter and the outlet temperature T4 of the cooling medium conveying equipment in the ambient temperature parameter meet the fourth constraint condition, the indoor and outdoor temperature difference and load rate relationship function in the full natural cooling mode is updated, so that the first indoor and outdoor temperature difference ΔT2' calculated according to the updated function is equal to the sum of the first indoor and outdoor temperature difference ΔT2 calculated according to the function before the update and the second temperature difference increment δ_2; Among them, the fourth constraint condition is: in the full natural cooling mode, the power indication parameter of the working component in the equipment operation parameter reaches the corresponding rated value, the inlet temperature T3 of the cooling medium conveying equipment in the ambient temperature parameter is greater than the first set inlet temperature or the outlet temperature T4 of the cooling medium conveying equipment in the current ambient temperature parameter is greater than the second set outlet temperature; When the indoor and outdoor temperature difference ΔT in the ambient temperature parameter is less than or equal to the sum of the first indoor and outdoor temperature difference ΔT2 and the third temperature difference offset C, the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode is updated so that the updated function is restored to the initial function corresponding to the relationship function between the indoor and outdoor temperature difference and the load rate in the full natural cooling mode.

6. The air conditioning control method according to claim 5, characterized in that: The updated indoor and outdoor temperature difference and load rate relationship function ΔT3'(Load) in the natural-compressor mixed refrigeration mode and the updated indoor and outdoor temperature difference and load rate relationship function ΔT2'(Load) in the full natural refrigeration mode satisfy the following relationship: ΔT2'(Load)-ΔT2(Load)=α*(ΔT3'(Load)-ΔT3(Load)); Among them, ΔT2(Load) is the relationship function between the indoor and outdoor temperature difference and the load rate in the fully natural cooling mode before the update, ΔT3(Load) is the relationship function between the indoor and outdoor temperature difference and the load rate in the natural-compressor mixed refrigeration mode before the update, α is the set correction coefficient, and Load is the load rate.

7. The air conditioning control method according to claim 6, characterized in that: The correction coefficient α≥1 is determined according to the inverse proportion of the designed natural cold source refrigeration capacity contribution ratio of the corresponding operating conditions in the natural-compressor mixed refrigeration mode.

8. An electronic device, characterized in that: include, one or more processors; a storage device for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement the air conditioning control method as described in any one of claims 1-7.

9. An air conditioner, characterized in that: Including, natural cold source refrigeration module, compressor refrigeration module and air conditioning control device; The air conditioning control device is configured to obtain current equipment operating parameters and ambient temperature parameters of the air conditioner; and is also configured to determine a target cooling mode according to the current equipment operating parameters, ambient temperature parameters and cooling mode control function; The air conditioning control device is further configured to control the start and stop of the natural cold source refrigeration module and the compressor refrigeration module when the target refrigeration mode is different from the current refrigeration mode, so that the air conditioning switches to the target refrigeration mode; Wherein, the equipment operation parameters include: cooling mode and load rate; The refrigeration mode includes: a full natural refrigeration mode, and also includes: a natural-compressor mixed refrigeration mode and / or a compressor refrigeration mode; The cooling mode control function is used to determine a mode control parameter according to an ambient temperature parameter and a load rate, and the mode control parameter is used to determine the target cooling mode.

10. A storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program is configured to execute the air conditioning control method according to any one of claims 1 to 7 when running.

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