Air conditioning operation control method, device, air conditioning system and storage medium

Abstract

The present application relates to an air-conditioning operation control method, device, air-conditioning system and storage medium. When a one-to-many air-conditioning unit has a need to add an indoor unit to operate, it will detect whether the currently required additional indoor unit will cause the one-to-many air-conditioning unit to meet a preset fluctuation condition. When it causes the one-to-many air-conditioning unit to meet a preset fluctuation condition, a disturbance analysis is performed in combination with the operating parameters of the additional indoor unit to obtain an opening adjustment amount. After increasing the opening of the indoor electronic expansion valve of the indoor unit that has been turned on by the opening adjustment amount, the additional indoor unit is controlled to start operation. This solution transfers the operating fluctuation caused by the additional indoor unit to the indoor unit that has been turned on, and accordingly increases the opening of the indoor electronic expansion valve of the indoor unit that has been turned on, so that after the additional indoor unit is turned on and takes away the refrigerant amount of the indoor unit that has been turned on, the remaining refrigerant amount of the indoor unit that has been turned on still basically meets the operating demand, and does not cause a large fluctuation in the operating capacity.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular to an air conditioner operation control method, device, air conditioner system and storage medium. Background Art

[0002] With the development of science and technology and the continuous improvement of people's living standards, air conditioners are used more and more widely in daily production and life. One-to-many air conditioning units are deeply loved by users because they only need one outdoor unit to drive multiple indoor units and control the temperature of different areas at the same time.

[0003] During the operation of a one-to-many air-conditioning unit, when a new indoor unit with capacity demand is added, part of the refrigerant flowing in the one-to-many air-conditioning unit will be filled into the newly started indoor unit, resulting in a decrease in the amount of refrigerant in the indoor units that have already been started, and ultimately causing large fluctuations in the operating capacity of the one-to-many air-conditioning unit. Summary of the Invention

[0004] Based on this, it is necessary to provide an air conditioning operation control method, device, air conditioning system and storage medium to alleviate the problem of large fluctuations in the operating capacity of a one-to-many air conditioning unit when new indoor units with capacity requirements are added.

[0005] A method for controlling air conditioning operation includes: if a one-to-many air conditioning unit has a need to operate an additional indoor unit, detecting whether the required additional indoor unit will cause the one-to-many air conditioning unit to meet a preset fluctuation condition; if the one-to-many air conditioning unit will meet the preset fluctuation condition, performing a disturbance analysis based on the operating parameters of the required additional indoor unit to obtain an opening adjustment amount; and after increasing the opening of an indoor electronic expansion valve of an already turned on indoor unit according to the opening adjustment amount, controlling the additional indoor unit to start operation.

[0006] In the aforementioned air conditioning operation control method, when a one-to-many air conditioning unit requires operation of an additional indoor unit, it detects whether the currently required additional indoor unit will cause the one-to-many air conditioning unit to meet a preset fluctuation condition. If the operation of the additional indoor unit would cause the one-to-many air conditioning unit to meet the preset fluctuation condition, a disturbance analysis is performed based on the operating parameters of the additional indoor unit to obtain an opening adjustment value. After increasing the opening of the indoor electronic expansion valve of the already activated indoor unit by the opening adjustment value, the additional indoor unit is then controlled to start operation. With this solution, when the one-to-many air conditioning unit requires operation of an additional indoor unit, the operational fluctuations caused by the additional indoor unit are effectively transferred to the already activated indoor unit, and the opening of the indoor electronic expansion valve of the already activated indoor unit is correspondingly increased. This ensures that, after the additional indoor unit starts operating and diverts the refrigerant volume from the already activated indoor unit, the remaining refrigerant volume in the already activated indoor unit still substantially meets the operational requirements, preventing significant fluctuations in the operating capacity of the one-to-many air conditioning unit and minimizing the impact of the activation of the additional indoor unit on its refrigerant circulation volume.

[0007] In one embodiment, the detection of whether the required new indoor unit will cause the one-to-many air-conditioning set to meet the preset fluctuation condition includes: obtaining the capacity requirement parameter of the required new indoor unit; detecting whether the capacity requirement parameter is greater than the preset requirement parameter; if the capacity requirement parameter is greater than the preset requirement parameter, determining that the required new indoor unit will cause the one-to-many air-conditioning set to meet the preset fluctuation condition.

[0008] In one embodiment, obtaining the capacity requirement parameters of the required new indoor unit includes: obtaining the rated capacity of the required new indoor unit and the rated total capacity of the turned-on indoor units; performing capacity requirement calculation based on the rated capacity and the rated total capacity to obtain the capacity requirement parameters of the required new indoor unit.

[0009] In one embodiment, the operating parameters include rated capacity and required indoor electronic expansion valve opening; performing disturbance analysis based on the operating parameters of the required newly added indoor unit to obtain the opening adjustment amount includes: performing equivalent analysis based on the rated capacity and the required indoor electronic expansion valve opening to obtain the equivalent opening value of the required newly added indoor unit; performing opening analysis based on the equivalent opening value to obtain the opening adjustment amount.

[0010] In one embodiment, the equivalent analysis is performed based on the rated capacity and the required indoor electronic expansion valve opening to obtain the equivalent opening value of the required new indoor unit, including: performing an equivalent calculation based on the rated capacity, the required indoor electronic expansion valve opening, and a preset heat exchanger volume ratio corresponding to the required new indoor unit to obtain the equivalent opening value of the required new indoor unit.

[0011] In one embodiment, performing opening analysis based on the equivalent opening value to obtain the opening adjustment amount includes: performing opening calculation based on the equivalent opening value and a preset heat exchanger volume ratio corresponding to the turned-on indoor unit to obtain the opening adjustment amount.

[0012] In one embodiment, the method for determining the preset heat exchanger volume ratio includes: obtaining the current heat exchanger volume of the current indoor unit based on the rated capacity of the current indoor unit and the corresponding relationship between the preset rated capacity and the heat exchanger volume; obtaining the reference heat exchanger volume based on the reference rated capacity and the corresponding relationship between the preset rated capacity and the heat exchanger volume; and obtaining the corresponding preset heat exchanger volume ratio based on the ratio of the current heat exchanger volume to the reference heat exchanger volume.

[0013] In one embodiment, after increasing the opening of the indoor electronic expansion valve of the turned-on indoor unit according to the opening adjustment amount, and controlling the newly added indoor unit to start operation, it also includes: if the operation of the turned-on indoor unit according to the increased indoor electronic expansion valve opening meets the preset operating conditions, obtaining the ambient temperature fluctuation value of the turned-on indoor unit relative to when the opening of the indoor electronic expansion valve is not increased; and correcting the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to the operating mode of the turned-on indoor unit and the ambient temperature fluctuation value.

[0014] In one embodiment, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected according to the operating mode of the turned-on indoor unit and the ambient temperature fluctuation value, including: if the turned-on indoor unit is in cooling operation, detecting whether the ambient temperature fluctuation value is greater than a first preset temperature threshold; wherein the first preset temperature threshold is greater than 0; if the ambient temperature fluctuation value is greater than the first preset temperature threshold, correcting the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to a preset first correction coefficient; wherein the preset first correction coefficient is greater than 1; if the ambient temperature fluctuation value is less than or equal to the first preset temperature threshold, detecting whether the ambient temperature fluctuation value is less than a second preset temperature threshold; wherein the second preset temperature threshold is less than 0; if the ambient temperature fluctuation value is less than the second preset temperature threshold, correcting the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to a preset second correction coefficient; wherein the preset second correction coefficient is greater than 0 and less than 1; if the ambient temperature fluctuation value is greater than or equal to the second preset temperature threshold, maintaining the preset heat exchanger volume ratio corresponding to the turned-on indoor unit unchanged.

[0015] In one embodiment, the method of correcting the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to the operating mode of the turned-on indoor unit and the ambient temperature fluctuation value includes: if the turned-on indoor unit is in heating operation, detecting whether the ambient temperature fluctuation value is greater than a third preset temperature threshold; wherein the third preset temperature threshold is greater than 0; if the ambient temperature fluctuation value is greater than the third preset temperature threshold, correcting the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to a preset third correction coefficient; wherein the preset third correction coefficient is greater than 0 and less than 1; if the ambient temperature fluctuation value is less than or equal to the third preset temperature threshold, detecting whether the ambient temperature fluctuation value is less than a fourth preset temperature threshold; wherein the fourth preset temperature threshold is less than 0; if the ambient temperature fluctuation value is less than the fourth preset temperature threshold, correcting the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to a preset fourth correction coefficient; wherein the preset fourth correction coefficient is greater than 1; if the ambient temperature fluctuation value is greater than or equal to the fourth preset temperature threshold, maintaining the preset heat exchanger volume ratio corresponding to the turned-on indoor unit unchanged.

[0016] An air-conditioning operation control device includes: a fluctuation detection module for detecting whether the required newly added indoor unit will cause unit operation fluctuations when a one-to-many air-conditioning unit has a demand for operating a new indoor unit; a disturbance analysis module for performing a disturbance analysis based on the operating parameters of the required newly added indoor unit to obtain an opening adjustment amount if the required newly added indoor unit will cause unit operation fluctuations; and an operation control module for increasing the opening of an indoor electronic expansion valve of an already turned on indoor unit according to the opening adjustment amount, and then controlling the newly added indoor unit to start and operate.

[0017] An air conditioning system includes: an outdoor unit, a controller and multiple indoor units, the indoor units are provided with indoor electronic expansion valves and indoor heat exchangers, the indoor electronic expansion valves and the indoor units are respectively connected to the outdoor unit, the indoor electronic expansion valves are connected to the controller, and the controller is used to execute the steps of the above-mentioned air conditioning operation control method.

[0018] A computer-readable storage medium stores a computer program, which implements the steps of the air-conditioning operation control method when executed by a processor.

[0019] A computer program product includes a computer program, which implements the steps of the air-conditioning operation control method when executed by a processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the air conditioning system structure according to an embodiment of the present application;

[0022] Figure 2 This is a flow chart of an air conditioning operation control method according to an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of a fluctuation detection process according to an embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of a fluctuation detection process according to another embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of the flow chart for calculating the opening adjustment amount according to one embodiment of the present application;

[0026] Figure 6 This is a schematic diagram of the flow chart for calculating the opening adjustment amount according to another embodiment of the present application;

[0027] Figure 7 This is a flow chart of an air conditioning operation control method according to another embodiment of the present application;

[0028] Figure 8 A schematic diagram of a correction process according to an embodiment of the present application;

[0029] Figure 9 A schematic diagram of a correction process of another embodiment of the present application;

[0030] Figure 10 This is a flow chart of an air conditioning operation control method according to an embodiment of the present application;

[0031] Figure 11 This is a structural diagram of an air-conditioning operation control device according to an embodiment of the present application;

[0032] Figure 12 This is a structural diagram of an air conditioning operation control device according to another embodiment of the present application. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0034] The air conditioning operation control method provided in the embodiment of the present application is applied to a one-to-many air conditioning unit. Figure 1 This type of air conditioning unit uses one outdoor unit 101 to drive at least one indoor unit (the diagram 201 shows four indoor units connected in parallel). Each indoor unit is connected in parallel. The outdoor unit 101 includes a gas-liquid separator 1, a compressor 2, a four-way valve 3, an outdoor electronic expansion valve 5, and an outdoor heat exchanger 4. Each component is connected via refrigerant piping. Specifically, the gas-liquid separator 1, outdoor heat exchanger 4, and compressor 2 are each connected to the four-way valve 3. The outdoor heat exchanger 4 is connected to the indoor unit via the outdoor electronic expansion valve 5. The compressor 2 is connected to the gas-liquid separator 1. The four-way valve 3 is also connected to the indoor unit. The indoor unit includes an indoor heat exchanger 7 and an indoor electronic expansion valve 6. The indoor electronic expansion valve 6 is connected to the outdoor electronic expansion valve 5 of the outdoor unit. The indoor heat exchanger 7 is in turn connected to the indoor electronic expansion valve 6 and the outdoor unit's four-way valve 3.

[0035] During actual operation, at least one indoor unit can be turned on and operated simultaneously. While at least one indoor unit is operating, at least one additional indoor unit can be turned on and operated based on user needs. The air conditioning operation control method provided in this application implements air conditioning operation control when at least one additional indoor unit needs to be turned on and operated when a one-to-many air conditioning unit already has at least one outdoor unit turned on and operated.

[0036] See also Figure 2 , an air conditioning operation control method, including step 202, step 204 and step 206.

[0037] In step 202, if there is a need to add an indoor unit to the one-to-many air-conditioning set, it is detected whether the required new indoor unit can make the one-to-many air-conditioning set meet the preset fluctuation condition.

[0038] Specifically, a multi-unit air conditioning system is one in which a single outdoor unit drives multiple indoor units. The preset fluctuation condition is a preset condition that must be met to cause significant fluctuations in the operating capacity of the multi-unit air conditioning system. The air conditioning operation control method provided in the embodiments of the present application is implemented using a controller for the multi-unit air conditioning system. Specifically, the controller can be located in the controller of the outdoor unit.

[0039] The indoor units of a multi-unit air conditioning system are installed in different areas requiring temperature control, for example, one indoor unit per room. During operation, each indoor unit is independently controlled to start and stop, allowing users to select which indoor units in different areas to start and operate based on their needs. Upon receiving a power-on command from a remote control, thermostat, or other device, the indoor unit sends a power-on request signal to the controller. Upon receiving this signal, the controller activates the indoor unit.

[0040] Therefore, in the solution of this embodiment, when at least one indoor unit of the one-to-multi air-conditioning unit has been turned on for operation, the controller determines whether the current one-to-multi air-conditioning unit has a need to add an indoor unit to operate based on whether it receives a power-on request signal sent by an indoor unit that is not in operation. If a power-on request signal is received, it is considered that the one-to-multi air-conditioning unit has a need to add an indoor unit to operate.

[0041] When there is a need to operate a new indoor unit in a one-to-many air-conditioning unit, the controller will further detect whether it will cause large operating fluctuations in the air-conditioning unit if the new indoor unit is directly turned on and connected to the air-conditioning unit. In other words, it will detect whether the required new indoor unit will make the one-to-many air-conditioning unit meet the preset fluctuation conditions.

[0042] It is understood that there is not a single method for detecting whether the addition of a new indoor unit will cause the one-to-many air conditioner unit to meet the preset fluctuation condition. Depending on the specific form of the preset fluctuation condition, the detection method may also vary to a certain extent, and the specific method is not limited thereto. For example, in a more detailed embodiment, this can be achieved by detecting the capacity requirements of the new indoor unit.

[0043] In step 204, if the one-to-many air-conditioning units meet the preset fluctuation conditions, a disturbance analysis is performed based on the operating parameters of the newly added indoor units to obtain the opening adjustment amount.

[0044] Specifically, the operating parameters of the newly added indoor unit are the operating parameters that the newly added indoor unit would achieve if the newly added indoor unit were controlled to start up. There is no single method for obtaining these operating parameters. In one embodiment, a user may set these parameters through a thermostat or remote control while simultaneously sending a power-on command to the newly added indoor unit. In another embodiment, the operating parameters may be default startup parameters for the newly added indoor unit, which may be stored in a preset form in the controller, such as a rated capacity, etc., without further limitation.

[0045] When the controller detects that the start-up of a new indoor unit will cause a large fluctuation in the operating capacity of the one-to-many air-conditioning unit, it will not directly control the start-up of the new indoor unit, but will perform a disturbance analysis based on the operating parameters of the new indoor unit to obtain an opening adjustment value.

[0046] Step 206 : After increasing the opening of the indoor electronic expansion valve of the already turned-on indoor unit according to the opening adjustment amount, control the newly added indoor unit to start and operate.

[0047] Specifically, the turned-on indoor unit is the indoor unit that is currently turned on. It is understood that the number of turned-on indoor units is not unique. It may be only one indoor unit turned on, or two or more indoor units turned on. This may vary depending on user needs and is not specifically limited.

[0048] It should be noted that when the controller performs a disturbance analysis based on the operating parameters of the newly added indoor unit to determine the opening adjustment value, it can analyze the operating parameters of each of the already activated indoor units and match a corresponding opening adjustment value to each of them. Furthermore, when increasing the opening of the indoor electronic expansion valves of the already activated indoor units based on the opening adjustment value, the opening of each of the already activated indoor electronic expansion valves is adjusted using the corresponding opening adjustment value.

[0049] In a more detailed embodiment, when a new indoor unit is required to operate in a multi-unit air conditioning system, the amount of refrigerant flowing through the air conditioning system must be increased to a certain extent to meet the refrigerant needs of the multiple indoor units. Specifically, when the controller detects that a new indoor unit is required to operate in the multi-unit air conditioning system, it will also increase the energy output of the compressor in the outdoor unit based on the capacity requirements of the new indoor unit, thereby ensuring that sufficient refrigerant circulates in the multi-unit air conditioning system to meet the refrigerant needs of the new indoor unit and the already activated indoor units.

[0050] In the aforementioned air conditioning operation control method, when a one-to-many air conditioning unit requires operation of an additional indoor unit, it detects whether the currently required additional indoor unit will cause the one-to-many air conditioning unit to meet a preset fluctuation condition. If the operation of the additional indoor unit would cause the one-to-many air conditioning unit to meet the preset fluctuation condition, a disturbance analysis is performed based on the operating parameters of the additional indoor unit to obtain an opening adjustment value. After increasing the opening of the indoor electronic expansion valve of the already activated indoor unit by the opening adjustment value, the additional indoor unit is then controlled to start operation. With this solution, when the one-to-many air conditioning unit requires operation of an additional indoor unit, the operational fluctuations caused by the additional indoor unit are effectively transferred to the already activated indoor unit, and the opening of the indoor electronic expansion valve of the already activated indoor unit is correspondingly increased. This ensures that, after the additional indoor unit starts operating and diverts the refrigerant volume from the already activated indoor unit, the remaining refrigerant volume in the already activated indoor unit still substantially meets the operational requirements, preventing significant fluctuations in the operating capacity of the one-to-many air conditioning unit and minimizing the impact of the activation of the additional indoor unit on its refrigerant circulation volume.

[0051] See also Figure 3 In one embodiment, detecting whether the required newly added indoor units will make the one-to-many air-conditioning sets meet the preset fluctuation conditions includes steps 302, 304 and 306.

[0052] Step 302: Acquire the capacity requirement parameters of the newly added indoor unit.

[0053] Step 304: Check whether the capability requirement parameter is greater than a preset requirement parameter.

[0054] Step 306: If the capacity demand parameter is greater than the preset demand parameter, determine the required additional indoor opportunities to enable the one-to-many air-conditioning units to meet the preset fluctuation conditions.

[0055] Specifically, the capacity requirement parameter is the operating capacity parameter corresponding to the newly added indoor unit after it is started and operated according to user needs. The preset demand parameter is the preset demand parameter that is reached when the newly added indoor unit is required to make the one-to-many air-conditioning unit meet the preset fluctuation conditions. The preset demand parameter is pre-stored in the controller. When the one-to-many air-conditioning unit has a demand for the operation of a newly added indoor unit, the controller first obtains the capacity requirement parameter of the newly added indoor unit. It is then compared and analyzed with the preset demand parameter. When the capacity requirement parameter is greater than the preset demand parameter, it is considered that the newly added indoor unit at this time will make the one-to-many air-conditioning unit meet the preset fluctuation conditions. Correspondingly, when the capacity requirement parameter is less than or equal to the preset demand parameter, it is considered that the newly added indoor unit at this time will not make the one-to-many air-conditioning unit meet the preset fluctuation conditions.

[0056] It should be pointed out that the capacity requirement parameter in the solution of this embodiment refers to the sum of the capacity requirements of each newly added indoor unit. If only one new indoor unit is required, the operating capacity parameter corresponding to the newly added indoor unit is used as the capacity requirement parameter; if two or more indoor units need to be added, the sum of the operating capacity parameters of each newly added indoor unit is used as the capacity requirement parameter.

[0057] The above scheme uses the capacity requirement parameters of the required new indoor units to analyze whether the one-to-many air-conditioning units can meet the preset fluctuation conditions, and associates the fluctuations of the air-conditioning units with the capacity requirements of the new indoor units, which has the advantage of high detection accuracy.

[0058] See also Figure 4 In one embodiment, step 302 includes step 402 and step 404 .

[0059] Step 402: Obtain the rated capacity of the newly added indoor unit and the total rated capacity of the already turned-on indoor units.

[0060] Step 404 : Calculate the capacity requirement based on the rated capacity and the rated total capacity to obtain the capacity requirement parameters of the newly added indoor units.

[0061] Specifically, the rated capacity is the power consumption of an indoor unit operating at its rated cooling or heating capacity. The total rated capacity is the sum of the rated capacities of all powered-on indoor units. There is no single method for obtaining the required capacity parameters for the newly added indoor units. In this embodiment, the controller obtains the rated capacity of each newly added indoor unit, as well as the rated capacity of the already powered-on indoor units, and then performs a capacity calculation to ultimately determine the required capacity parameters for the newly added indoor units.

[0062] It is understandable that there is no single way to calculate capacity requirements. In a more detailed embodiment, the ratio of the sum of the rated capacities of the required new indoor units to the rated total capacity is used as the capacity requirement parameter, that is, Q1 / Q0, where Q1 is the sum of the rated capacities of the required new indoor units, and Q0 is the rated total capacity of the indoor units that have been turned on.

[0063] In other embodiments, other methods may be used to calculate the capacity requirement to obtain the capacity requirement parameters of the required new indoor units, for example, subtracting the sum of the rated capacities of the required new indoor units from the rated total capacity, etc., without specific limitation.

[0064] The above scheme analyzes the rated capacity of the required new indoor units and the rated total capacity of the already turned on indoor units to determine the capacity requirement parameters of the required new indoor units, and associates the capacity requirement parameters with the rated capacity to further improve the detection accuracy.

[0065] See also Figure 5 In one embodiment, the operating parameters include the rated capacity and the required opening of the indoor electronic expansion valve. A disturbance analysis is performed based on the operating parameters of the newly added indoor unit to obtain the opening adjustment value, including steps 502 and 504.

[0066] Step 502: Perform equivalent analysis based on the rated capacity and the required opening of the indoor electronic expansion valve to obtain the equivalent opening value of the required newly added indoor unit.

[0067] Step 504: Perform opening analysis based on the equivalent opening value to obtain the opening adjustment value.

[0068] Specifically, the equivalent opening value is the total increase in the opening of the indoor electronic expansion valves corresponding to all active indoor units to account for the operating capacity fluctuation caused by the addition of the new indoor unit. The opening adjustment amount is the increase in the opening of the indoor electronic expansion valves required for each active indoor unit to account for the operating capacity fluctuation caused by the addition of the new indoor unit.

[0069] This embodiment first performs an equivalent analysis based on the rated capacity of the newly added indoor units and the required openings of the indoor electronic expansion valves corresponding to each newly added indoor unit. These values are then applied to the indoor electronic expansion valves of the already activated indoor units to obtain corresponding equivalent opening values. The controller then performs an opening analysis based on these equivalent opening values and distributes them to the activated indoor units to determine the required opening adjustment for each activated indoor electronic expansion valve. This allows the controller to adjust the opening of each activated indoor electronic expansion valve accordingly.

[0070] See also Figure 6 , in one embodiment, step 502 includes step 602.

[0071] Step 602 : performing equivalent calculation based on the rated capacity, the required opening of the indoor electronic expansion valve, and the preset heat exchanger volume ratio corresponding to the required newly added indoor unit to obtain the equivalent opening value of the required newly added indoor unit.

[0072] Specifically, the preset heat exchanger volume ratio is the ratio of the indoor heat exchanger volume to the reference volume. During the development of air conditioners, the volume of the indoor heat exchanger corresponds to the capacity of the indoor unit. Therefore, this embodiment combines the rated capacity of the newly added indoor unit to determine the preset heat exchanger volume ratio. This calculation is then combined with the required indoor electronic expansion valve opening and the preset heat exchanger volume ratio to determine the equivalent opening value for the newly added indoor unit. This calculation method offers high precision and effectively ensures the accuracy of the equivalent opening value.

[0073] It should be pointed out that in a more detailed embodiment, due to the different cooling and heating conditions of the indoor units, a preset heat exchanger volume ratio under heating conditions and a preset heat exchanger volume ratio under cooling conditions can be set for the same indoor unit respectively. In the actual control process, the corresponding preset heat exchanger volume ratio is selected for analysis and calculation in combination with the operating conditions of the outdoor unit.

[0074] It is understood that the equivalent calculation method is not unique. In a more detailed embodiment, the equivalent calculation specifically includes:

[0075] =

[0076] in, Indicates the equivalent opening value, N indicates the number of new indoor units required, Indicates the preset heat exchanger volume ratio of the nth newly added indoor unit, The required electronic expansion valve opening for the nth newly added indoor unit is multiplied by the preset heat exchanger volume ratio for each newly added indoor unit. The products are then added together to obtain the equivalent opening value.

[0077] Please continue reading Figure 6 , in one embodiment, step 504 includes step 604.

[0078] Step 604 : Calculate the opening degree according to the equivalent opening value and the preset heat exchanger volume ratio corresponding to the turned-on indoor unit to obtain the opening adjustment amount.

[0079] Specifically, similarly, in the solution of this embodiment, a preset heat exchanger volume ratio of each turned-on indoor unit is pre-stored in the controller. When the equivalent opening value is allocated to each turned-on indoor unit, the allocation is made in combination with the equivalent opening value and the preset heat exchanger volume ratio corresponding to each turned-on indoor unit to ensure the control accuracy of the indoor electronic expansion valve of each turned-on indoor unit.

[0080] It should be noted that the method for calculating the opening is not unique. In a more detailed embodiment, the method for calculating the opening includes:

[0081]

[0082] in, Indicates the opening adjustment value corresponding to the nth indoor unit that has been turned on. Indicates the equivalent opening value, Indicates the preset heat exchanger volume ratio corresponding to the nth turned-on indoor unit. Represents the sum of the preset heat exchanger volume ratios of the M active indoor units. Specifically, the opening adjustment corresponding to the currently active indoor unit is obtained by multiplying the ratio of the preset heat exchanger volume ratio of the currently active indoor unit to the sum of the preset heat exchanger volume ratios of all active indoor units by the equivalent opening value.

[0083] In one embodiment, the method for determining the preset heat exchanger volume ratio includes: obtaining the current heat exchanger volume of the current indoor unit based on the rated capacity of the current indoor unit and the corresponding relationship between the preset rated capacity and the heat exchanger volume; obtaining the reference heat exchanger volume based on the reference rated capacity and the corresponding relationship between the preset rated capacity and the heat exchanger volume; and obtaining the corresponding preset heat exchanger volume ratio based on the ratio of the current heat exchanger volume to the reference heat exchanger volume.

[0084] Specifically, the capacity of an air conditioning unit and the heat exchanger volume ratio have a one-to-one correspondence. Therefore, in this embodiment, the correspondence between the rated capacity and the heat exchanger volume is stored in the controller in the form of a database, map, table, etc. When the indoor unit is first powered on, the controller obtains the rated capacity of the indoor unit and substitutes it into the preset correspondence between the rated capacity and the heat exchanger volume to obtain the current heat exchanger volume corresponding to the indoor unit.

[0085] At the same time, a rated capacity is selected as a base rated capacity. This base rated capacity can be the rated capacity of any indoor unit in the air conditioning unit, or the rated capacity of another indoor unit outside the air conditioning unit. There is no specific limitation and the selection is based on actual needs. The base rated capacity is then matched against a preset correspondence between rated capacities and heat exchanger volumes to obtain a base heat exchanger volume. The ratio of the current heat exchanger volume to the base heat exchanger volume is stored as the volume ratio corresponding to the current indoor unit and is referred to as the preset heat exchanger volume ratio.

[0086] It can be understood that in one embodiment, the preset heat exchanger volume ratio can be obtained by experimental analysis based on the same type of air-conditioning units when the air-conditioning unit leaves the factory, and stored in the controller. During the subsequent operation of the air-conditioning unit, it only needs to be called in the controller in combination with the current indoor unit.

[0087] In another embodiment, the preset heat exchanger volume ratio can also be calculated after the air-conditioning unit leaves the factory, combined with the rated capacity of each indoor unit in the air-conditioning unit, and the correspondence between the preset rated capacity and the heat exchanger volume, and then stored in the controller, without specific limitation.

[0088] See also Figure 7 In one embodiment, after step 206 , the method further includes steps 702 and 704 .

[0089] In step 702, if the operation of the turned-on indoor unit according to the increased opening of the indoor electronic expansion valve meets the preset operating conditions, the ambient temperature fluctuation value of the turned-on indoor unit relative to the case when the opening of the indoor electronic expansion valve is not increased is obtained.

[0090] Step 704: Correct the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to the operation mode of the turned-on indoor unit and the ambient temperature fluctuation value.

[0091] Specifically, this embodiment adjusts the opening of the indoor electronic expansion valves of each activated indoor unit based on the opening adjustment amount and controls the operation of the required indoor units. The controller then monitors the ambient temperature corresponding to each activated indoor unit. This includes the ambient temperature during the period when the indoor electronic expansion valve opening meets the preset operating conditions, as well as the ambient temperature when the indoor electronic expansion valve opening does not increase, to obtain an ambient temperature fluctuation value. The ambient temperature fluctuation value is then used to analyze the accuracy of the preset heat exchanger volume ratios for each indoor unit during the current adjustment process, thereby correcting the preset heat exchanger volume ratios.

[0092] It is understood that the method for determining whether the preset operating conditions are satisfied by the operation of the activated indoor unit according to the increased indoor electronic expansion valve opening is not unique. In a more detailed embodiment, the activated indoor unit may operate according to the increased indoor electronic expansion valve opening until the end of the fluctuation period, at which point the activated indoor unit is deemed to have satisfied the preset operating conditions by operating according to the increased indoor electronic expansion valve opening. The fluctuation period refers to the sum of the time tf it takes for the outdoor unit's compressor to adjust its output capacity based on the capacity requirements of the newly added indoor unit to reach the new target output capacity, and the time tw the compressor continues to operate at the adjusted output capacity, i.e., tf + tw.

[0093] It should be noted that there is not only one way to obtain the ambient temperature corresponding to the indoor unit. In one embodiment, the temperature adjustment area corresponding to each indoor unit is provided with a temperature detector, which detects the ambient temperature of the temperature adjustment area in real time and transmits it to the controller.

[0094] In the above scheme, after the addition of the new indoor unit is completed, the preset heat exchanger volume ratio of each indoor unit that has been turned on will be analyzed and corrected, so as to ensure that the opening adjustment of each indoor unit that has been turned on will be more accurate when the indoor unit is added next time, thereby improving the control accuracy of the air conditioning operation.

[0095] See also Figure 8 In one embodiment, step 704 includes step 801 , step 802 , step 803 , step 804 and step 805 .

[0096] Step 801: If the indoor unit is turned on for cooling operation, it is detected whether the ambient temperature fluctuation value is greater than a first preset temperature threshold.

[0097] Step 802: If the ambient temperature fluctuation value is greater than a first preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected according to a preset first correction coefficient.

[0098] Step 803: If the ambient temperature fluctuation value is less than or equal to the first preset temperature threshold, it is detected whether the ambient temperature fluctuation value is less than a second preset temperature threshold.

[0099] Step 804: If the ambient temperature fluctuation value is less than the second preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected according to the preset second correction coefficient.

[0100] Step 805: If the ambient temperature fluctuation value is greater than or equal to the second preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is maintained unchanged.

[0101] The first preset temperature threshold is greater than 0, the preset first correction coefficient is greater than 1, the second preset temperature threshold is less than 0, and the preset second correction coefficient is greater than 0 and less than 1. When correcting the preset heat exchanger volume ratio, the controller will correct the preset heat exchanger volume ratio for each powered-on indoor unit based on its corresponding ambient temperature fluctuation value, and the preset heat exchanger volume ratio correction is performed independently for each powered-on indoor unit.

[0102] For ease of understanding, an example is given for explaining one of the indoor units that is already turned on. In cooling mode, when the ambient temperature fluctuation value An>0 and is greater than the first preset temperature threshold, it means that the opening of the electronic expansion valve of the indoor unit is too small during the anti-disturbance adjustment process, which affects the volume ratio of the heat exchanger of the indoor unit. Correction is performed with the correction coefficient a, a>1, and the heat exchanger volume ratio calculated after correction (i.e. a* ) as the volume ratio of the indoor unit in cooling mode. When the ambient temperature fluctuation value An is less than 0 and is less than the second preset temperature threshold, it means that the indoor electronic expansion valve of the indoor unit is opened too much during the anti-disturbance adjustment process, and the volume ratio of the indoor unit is also adjusted accordingly. Correction is performed, correction coefficient b, 0<b<1, and the heat exchanger volume ratio calculated after correction (i.e. b* ) as the volume ratio of the indoor unit in cooling mode. When the second preset temperature threshold ≤ An ≤ the first preset temperature threshold, it indicates that the disturbance control of the indoor unit has been successfully enabled and there is no need to correct the heat exchanger volume ratio.

[0103] See also Figure 9 In one embodiment, step 704 includes step 901 , step 902 , step 903 , step 904 and step 905 .

[0104] Step 901: If the indoor unit is turned on for heating operation, it is detected whether the ambient temperature fluctuation value is greater than a third preset temperature threshold.

[0105] Step 902: If the ambient temperature fluctuation value is greater than a third preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected according to a preset third correction coefficient.

[0106] Step 903: If the ambient temperature fluctuation value is less than or equal to the third preset temperature threshold, it is detected whether the ambient temperature fluctuation value is less than a fourth preset temperature threshold.

[0107] Step 904: If the ambient temperature fluctuation value is less than a fourth preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected according to a preset fourth correction coefficient.

[0108] Step 905: If the ambient temperature fluctuation value is greater than or equal to the fourth preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is maintained unchanged.

[0109] The third preset temperature threshold is greater than 0, and the preset third correction coefficient is greater than 0 and less than 1; the fourth preset temperature threshold is less than 0; and the preset fourth correction coefficient is greater than 1.

[0110] Similarly, take one of the indoor units that has been turned on as an example. In heating mode, when the ambient temperature fluctuation value An>0 and is greater than the third preset temperature threshold, it means that the electronic expansion valve of the indoor unit is opened too much during the anti-disturbance adjustment process, which affects the volume ratio of the heat exchanger of the indoor unit. Correction is performed, correction coefficient b', 0<b'<1, and the heat exchanger volume ratio calculated after correction (i.e. b'* ) as the volume ratio of the indoor unit in heating mode. When the ambient temperature fluctuation value An is less than 0 and is less than the fourth preset temperature threshold, it means that the opening of the indoor electronic expansion valve of the indoor unit is too small during the anti-disturbance adjustment process, and the volume ratio of the indoor unit is also adjusted accordingly. Correction is performed with the correction coefficient a', a'>1, and the heat exchanger volume ratio calculated after correction (i.e. a'* ) as the volume ratio of the indoor unit in the heating mode. When the fourth preset temperature threshold ≤ An ≤ the third preset temperature threshold, it indicates that the disturbance control of the indoor unit has been successfully enabled and there is no need to correct the heat exchanger volume ratio.

[0111] Please refer to Figure 10 In order to facilitate understanding of the technical solution of the present application, the present application is explained below in conjunction with more detailed embodiments.

[0112] First, while a multi-unit air conditioner is operating some of its indoor units, it monitors in real time whether there's a need to activate additional units. If this is detected, the controller obtains the rated capacities of the new units, sums the resulting capacities, Q1, and combines this with the total rated capacities, Q0, of the already-operated indoor units to calculate the capacity requirement parameter, Q1 / Q0, for the new units. Based on the capacity requirements of the new units, the controller controls the compressor to increase its output capacity accordingly. The system then operates at this increased capacity for a period of time. The sum of the time the compressor increases its output capacity and the period of operation at this increased capacity is considered the fluctuation period.

[0113] During the fluctuation period, the controller determines the required indoor units based on the acquired capacity demand parameters to make the one-to-many air conditioner units meet the preset fluctuation conditions. That is, when it detects that Q1 / Q0 is greater than the preset demand parameter (for example, 20%), the controller starts to perform disturbance analysis based on the operating parameters of the required new indoor units. Specifically, the controller obtains the corresponding preset heat exchanger volume ratio based on the rated capacity analysis of each required new indoor unit, and adjusts the required indoor electronic expansion valve opening to the required value. And the preset heat exchanger volume ratio, substitute = Calculate the equivalent opening value .

[0114] Then, the controller adjusts the heat exchanger capacity ratio of each indoor unit to Perform equivalent opening distribution, distribute the equivalent opening to each turned-on indoor unit, and obtain the opening adjustment amount of each turned-on indoor unit respectively Finally, according to the opening adjustment amount, the opening of the indoor electronic expansion valve corresponding to the indoor unit that has been turned on is adjusted, and the required new indoor unit is controlled to start and run.

[0115] After the fluctuation period ends, the controller obtains the ambient temperature fluctuation value corresponding to each turned-on indoor unit, and corrects the preset heat exchanger volume ratio of each turned-on indoor unit in combination with the current operating conditions to ensure the accuracy of the opening adjustment of the indoor electronic expansion valve of the turned-on indoor unit when a new indoor unit is added later.

[0116] Specifically, in cooling mode, when the ambient temperature fluctuation value An>0 and is greater than the first preset temperature threshold, it means that the electronic expansion valve of the indoor unit is opened too small during the anti-disturbance adjustment process, which affects the volume ratio of the heat exchanger of the indoor unit. Correction is performed with the correction coefficient a, a>1, and the heat exchanger volume ratio calculated after correction (i.e. a* ) as the volume ratio of the indoor unit in cooling mode. When the ambient temperature fluctuation value An is less than 0 and is less than the second preset temperature threshold, it means that the indoor electronic expansion valve of the indoor unit is opened too much during the anti-disturbance adjustment process, and the volume ratio of the indoor unit is also adjusted accordingly. Correction is performed, correction coefficient b, 0<b<1, and the heat exchanger volume ratio calculated after correction (i.e. b* ) as the volume ratio of the indoor unit in cooling mode. When the second preset temperature threshold ≤ An ≤ the first preset temperature threshold, it indicates that the disturbance control of the indoor unit has been successfully enabled and there is no need to correct the heat exchanger volume ratio.

[0117] In heating mode, when the ambient temperature fluctuation value An>0 and is greater than the third preset temperature threshold (the third preset temperature threshold can be set to be the same as the first preset temperature threshold, or different, and is selected in combination with actual needs), it means that the electronic expansion valve of the indoor unit is opened too large during the anti-disturbance adjustment process, and the heat exchanger volume ratio of the indoor unit is too large. Correction is performed, correction coefficient b', 0<b'<1, and the heat exchanger volume ratio calculated after correction (i.e. b'* ) as the volume ratio of the indoor unit in heating mode. When the ambient temperature fluctuation value An is less than 0 and is less than the fourth preset temperature threshold (the fourth preset temperature threshold can be set to be the same as the second preset temperature threshold, or different, and is selected based on actual needs), it means that the indoor electronic expansion valve of the indoor unit is opened too small during the anti-disturbance adjustment process, and the volume ratio of the indoor unit is also adjusted accordingly. Correction is performed with the correction coefficient a', a'>1, and the heat exchanger volume ratio calculated after correction (i.e. a'* ) as the volume ratio of the indoor unit in the heating mode. When the fourth preset temperature threshold ≤ An ≤ the third preset temperature threshold, it indicates that the disturbance control of the indoor unit has been successfully enabled and there is no need to correct the heat exchanger volume ratio.

[0118] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0119] Based on the same inventive concept, embodiments of the present application also provide an air conditioner operation control device for implementing the aforementioned air conditioner operation control method. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of one or more embodiments of the air conditioner operation control device provided below can be found in the aforementioned limitations of the air conditioner operation control method and will not be further elaborated here.

[0120] See also Figure 11 , an air conditioning operation control device includes: a fluctuation detection module 112, a disturbance analysis module 114 and an operation control module 116.

[0121] The fluctuation detection module 112 is used to detect whether the newly added indoor unit will make the one-to-many air-conditioning unit meet the preset fluctuation condition if there is a need to add an indoor unit to the one-to-many air-conditioning unit.

[0122] The disturbance analysis module 114 is used to perform disturbance analysis based on the operating parameters of the newly added indoor units to determine the opening adjustment value if the one-to-many air-conditioning units meet the preset fluctuation conditions.

[0123] The operation control module 116 is used to increase the opening of the indoor electronic expansion valve of the indoor unit that has been turned on according to the opening adjustment amount, and then control the newly added indoor unit to start and operate.

[0124] In one embodiment, the fluctuation detection module 112 is also used to obtain the capacity requirement parameters of the required new indoor units; detect whether the capacity requirement parameters are greater than the preset requirement parameters; if the capacity requirement parameters are greater than the preset requirement parameters, determine that the required new indoor units will enable the one-to-many air-conditioning units to meet the preset fluctuation conditions.

[0125] In one embodiment, the fluctuation detection module 112 is further used to obtain the rated capacity of the required new indoor unit and the rated total capacity of the turned-on indoor units; calculate the capacity requirement based on the rated capacity and the rated total capacity to obtain the capacity requirement parameters of the required new indoor unit.

[0126] In one embodiment, the disturbance analysis module 114 is further configured to perform equivalent analysis based on the rated capacity and the required opening of the indoor electronic expansion valve to obtain the equivalent opening value of the required newly added indoor unit; and perform opening analysis based on the equivalent opening value to obtain the opening adjustment amount.

[0127] In one embodiment, the disturbance analysis module 114 is further configured to perform equivalent calculation based on the rated capacity, the required indoor electronic expansion valve opening, and the preset heat exchanger volume ratio corresponding to the required newly added indoor unit to obtain the equivalent opening value of the required newly added indoor unit.

[0128] In one embodiment, the disturbance analysis module 114 is further configured to perform opening calculation based on the equivalent opening value and a preset heat exchanger volume ratio corresponding to the turned-on indoor unit to obtain an opening adjustment value.

[0129] In one embodiment, see Figure 12 , the device also includes a correction module 122.

[0130] The correction module 122 is used to obtain the ambient temperature fluctuation value of the turned-on indoor unit relative to the time when the indoor electronic expansion valve opening is not increased if the turned-on indoor unit operates according to the increased indoor electronic expansion valve opening to meet the preset operating conditions; and correct the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to the operating mode of the turned-on indoor unit and the ambient temperature fluctuation value.

[0131] In one embodiment, the correction module 122 is also used to detect whether the ambient temperature fluctuation value is greater than a first preset temperature threshold if the indoor unit is turned on and is in cooling operation; if the ambient temperature fluctuation value is greater than the first preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned on indoor unit is corrected according to the preset first correction coefficient; if the ambient temperature fluctuation value is less than or equal to the first preset temperature threshold, detect whether the ambient temperature fluctuation value is less than the second preset temperature threshold; if the ambient temperature fluctuation value is less than the second preset temperature threshold, correct the preset heat exchanger volume ratio corresponding to the turned on indoor unit according to the preset second correction coefficient; if the ambient temperature fluctuation value is greater than or equal to the second preset temperature threshold, maintain the preset heat exchanger volume ratio corresponding to the turned on indoor unit unchanged.

[0132] In one embodiment, the correction module 122 is also used to detect whether the ambient temperature fluctuation value is greater than a third preset temperature threshold if the indoor unit is turned on and is operating in heating mode; if the ambient temperature fluctuation value is greater than the third preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned on indoor unit is corrected according to the preset third correction coefficient; if the ambient temperature fluctuation value is less than or equal to the third preset temperature threshold, detect whether the ambient temperature fluctuation value is less than a fourth preset temperature threshold; if the ambient temperature fluctuation value is less than the fourth preset temperature threshold, correct the preset heat exchanger volume ratio corresponding to the turned on indoor unit according to the preset fourth correction coefficient; if the ambient temperature fluctuation value is greater than or equal to the fourth preset temperature threshold, maintain the preset heat exchanger volume ratio corresponding to the turned on indoor unit unchanged.

[0133] Each module in the aforementioned air conditioning operation control device may be implemented in whole or in part through software, hardware, or a combination thereof. Each module may be embedded in or independent of a processor within a computer device in the form of hardware, or may be stored in a computer device memory in the form of software, so that the processor can call and execute the corresponding operations of each module.

[0134] When a one-to-many air conditioning unit requires operation of an additional indoor unit, the aforementioned air conditioning operation control device detects whether the currently required additional indoor unit will cause the one-to-many air conditioning unit to meet a preset fluctuation condition. If the operation of the additional indoor unit would cause the one-to-many air conditioning unit to meet the preset fluctuation condition, a disturbance analysis is performed based on the operating parameters of the additional indoor unit to obtain an opening adjustment value. After increasing the opening of the indoor electronic expansion valve of the already-activated indoor unit by the opening adjustment value, the additional indoor unit is then controlled to start operation. With this solution, when the one-to-many air conditioning unit requires operation of an additional indoor unit, the operational fluctuations caused by the additional indoor unit are effectively transferred to the already-activated indoor unit, and the opening of the indoor electronic expansion valve of the already-activated indoor unit is correspondingly increased. This ensures that, after the additional indoor unit's operation diverts the refrigerant volume from the already-activated indoor unit, the remaining refrigerant volume in the already-activated indoor unit still substantially meets the operational requirements, preventing significant fluctuations in the operating capacity of the one-to-many air conditioning unit and minimizing the impact of the activation of the additional indoor unit on its refrigerant circulation volume.

[0135] Please refer to Figure 1 The embodiment of the present application also provides an air-conditioning system, including: an outdoor unit 101, a controller (not shown) and multiple indoor units (part 201 shown in the figure shows four indoor units connected in parallel), the indoor unit is provided with an indoor electronic expansion valve 6 and an indoor heat exchanger 7, the indoor electronic expansion valve 6 and the indoor unit 7 are respectively connected to the outdoor unit, the indoor electronic expansion valve 6 is connected to the controller, and the controller is used to execute the steps of the above-mentioned air-conditioning operation control method.

[0136] Specifically, the air conditioning operation control method is described in the various embodiments and accompanying drawings described above and will not be further described here. In the aforementioned air conditioning system, when a new indoor unit is required to operate in a multi-unit air conditioning system, the system detects whether the newly required indoor unit will cause the multi-unit air conditioning system to meet a preset fluctuation condition. If the operation of the newly added indoor unit would cause the multi-unit air conditioning system to meet the preset fluctuation condition, a disturbance analysis is performed based on the operating parameters of the newly added indoor unit to determine an opening adjustment value. After increasing the opening of the indoor electronic expansion valve of the already activated indoor unit by the opening adjustment value, the newly added indoor unit is then controlled to operate. With this solution, when a new indoor unit is required to operate in a multi-unit air conditioning system, the operational fluctuations caused by the newly added indoor unit are effectively transferred to the already activated indoor unit. The opening of the indoor electronic expansion valve of the already activated indoor unit is correspondingly increased. This ensures that, after the newly added indoor unit's operation diverts the refrigerant from the already activated indoor unit, the remaining refrigerant in the already activated indoor unit still substantially meets the operational requirements, preventing significant fluctuations in the operating capacity of the multi-unit air conditioning system and minimizing the impact of the newly added indoor unit's operation on its refrigerant circulation volume.

[0137] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0138] If there is a need to operate an additional indoor unit in a one-to-many air-conditioning unit, it is detected whether the required additional indoor unit will make the one-to-many air-conditioning unit meet the preset fluctuation conditions; if it will make the one-to-many air-conditioning unit meet the preset fluctuation conditions, a disturbance analysis is performed based on the operating parameters of the required additional indoor unit to obtain the opening adjustment amount; after increasing the opening of the indoor electronic expansion valve of the already turned on indoor unit according to the opening adjustment amount, the newly added indoor unit is controlled to start operation.

[0139] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0140] If there is a need to operate an additional indoor unit in a one-to-many air-conditioning unit, it is detected whether the required additional indoor unit will make the one-to-many air-conditioning unit meet the preset fluctuation conditions; if it will make the one-to-many air-conditioning unit meet the preset fluctuation conditions, a disturbance analysis is performed based on the operating parameters of the required additional indoor unit to obtain the opening adjustment amount; after increasing the opening of the indoor electronic expansion valve of the already turned on indoor unit according to the opening adjustment amount, the newly added indoor unit is controlled to start operation.

[0141] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processors (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), computation-based data processing logic devices, and the like.

[0142] The aforementioned storage medium and computer program product, when a one-to-many air conditioning unit requires operation of an additional indoor unit, detects whether the currently required additional indoor unit will cause the one-to-many air conditioning unit to meet a preset fluctuation condition. If the operation of the additional indoor unit would cause the one-to-many air conditioning unit to meet the preset fluctuation condition, a disturbance analysis is performed based on the operating parameters of the additional indoor unit to obtain an opening adjustment value. After increasing the opening of the indoor electronic expansion valve of the already-activated indoor unit by the opening adjustment value, the additional indoor unit is then controlled to start operation. With this solution, when the one-to-many air conditioning unit requires operation of an additional indoor unit, the operational fluctuations caused by the additional indoor unit are effectively transferred to the already-activated indoor unit, and the opening of the indoor electronic expansion valve of the already-activated indoor unit is correspondingly increased. This ensures that, after the additional indoor unit starts operating and diverts the refrigerant volume from the already-activated indoor unit, the remaining refrigerant volume in the already-activated indoor unit still substantially meets the operational requirements, preventing significant fluctuations in the operating capacity of the one-to-many air conditioning unit and minimizing the impact of the activation of the additional indoor unit on its refrigerant circulation volume.

[0143] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0144] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An air conditioning operation control method, characterized in that: include: If a one-to-many air conditioning unit needs to have additional indoor units running, check whether the required additional indoor units will enable the one-to-many air conditioning unit to meet the preset fluctuation conditions; If the one-to-many air-conditioning units meet the preset fluctuation conditions, a disturbance analysis is performed based on the operating parameters of the newly added indoor units to obtain the opening adjustment amount; After increasing the opening of the indoor electronic expansion valve of the already turned-on indoor unit according to the opening adjustment amount, controlling the newly added indoor unit to start and operate; Among them, the operating parameters include rated capacity and required indoor electronic expansion valve opening; the disturbance analysis is performed based on the operating parameters of the required new indoor unit to obtain the opening adjustment amount, including: performing equivalent calculation based on the rated capacity, the required indoor electronic expansion valve opening, and the preset heat exchanger volume ratio corresponding to the required new indoor unit to obtain the equivalent opening value of the required new indoor unit; performing opening calculation based on the equivalent opening value and the preset heat exchanger volume ratio corresponding to the already turned on indoor unit to obtain the opening adjustment amount.

2. The air conditioning operation control method according to claim 1, characterized in that: The detection of whether the newly added indoor units will cause the one-to-many air-conditioning unit to meet the preset fluctuation conditions includes: Obtain the capacity requirement parameters of the newly added indoor units; Detecting whether the capability requirement parameter is greater than a preset requirement parameter; If the capacity demand parameter is greater than the preset demand parameter, it is determined that the required additional indoor units will enable the one-to-many air-conditioning units to meet the preset fluctuation condition.

3. The air conditioning operation control method according to claim 2, characterized in that: The acquisition of the capacity requirement parameters of the newly added indoor units includes: Obtain the rated capacity of the required new indoor units and the total rated capacity of the already turned on indoor units; A capacity requirement calculation is performed based on the rated capacity and the rated total capacity to obtain capacity requirement parameters of the required newly added indoor units.

4. The air conditioning operation control method according to claim 1, characterized in that: The method for determining the preset heat exchanger volume ratio includes: According to the rated capacity of the current indoor unit and the preset correspondence between the rated capacity and the heat exchanger volume, the current heat exchanger volume of the current indoor unit is obtained; Obtaining a reference heat exchanger volume based on the reference rated capacity and the correspondence between the preset rated capacity and the heat exchanger volume; According to the ratio of the current heat exchanger volume to the reference heat exchanger volume, a corresponding preset heat exchanger volume ratio is obtained.

5. The air conditioning operation control method according to any one of claims 1 to 4, characterized in that: After increasing the opening of the indoor electronic expansion valve of the already turned-on indoor unit according to the opening adjustment amount and controlling the newly added indoor unit to turn on and operate, the method further includes: If the indoor unit is turned on and operates according to the increased opening of the indoor electronic expansion valve to meet the preset operating conditions, obtain the ambient temperature fluctuation value of the indoor unit when the opening of the indoor electronic expansion valve is not increased; According to the operation mode of the turned-on indoor unit and the ambient temperature fluctuation value, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected.

6. The air conditioning operation control method according to claim 5, characterized in that: The step of correcting the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to the operation mode of the turned-on indoor unit and the ambient temperature fluctuation value includes: If the indoor unit is turned on for cooling operation, detecting whether the ambient temperature fluctuation value is greater than a first preset temperature threshold; wherein the first preset temperature threshold is greater than 0; If the ambient temperature fluctuation value is greater than a first preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected according to a preset first correction coefficient; wherein the preset first correction coefficient is greater than 1; If the ambient temperature fluctuation value is less than or equal to the first preset temperature threshold, detecting whether the ambient temperature fluctuation value is less than a second preset temperature threshold; wherein the second preset temperature threshold is less than 0; If the ambient temperature fluctuation value is less than the second preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected according to a preset second correction coefficient; wherein the preset second correction coefficient is greater than 0 and less than 1; If the ambient temperature fluctuation value is greater than or equal to the second preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is maintained unchanged.

7. The air conditioning operation control method according to claim 5, characterized in that: The step of correcting the preset heat exchanger volume ratio corresponding to the turned-on indoor unit according to the operation mode of the turned-on indoor unit and the ambient temperature fluctuation value includes: If the indoor unit is turned on for heating operation, detecting whether the ambient temperature fluctuation value is greater than a third preset temperature threshold; wherein the third preset temperature threshold is greater than 0; If the ambient temperature fluctuation value is greater than a third preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected according to a preset third correction coefficient; wherein the preset third correction coefficient is greater than 0 and less than 1; If the ambient temperature fluctuation value is less than or equal to the third preset temperature threshold, detecting whether the ambient temperature fluctuation value is less than a fourth preset temperature threshold; wherein the fourth preset temperature threshold is less than 0; If the ambient temperature fluctuation value is less than the fourth preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is corrected according to a preset fourth correction coefficient; wherein the preset fourth correction coefficient is greater than 1; If the ambient temperature fluctuation value is greater than or equal to the fourth preset temperature threshold, the preset heat exchanger volume ratio corresponding to the turned-on indoor unit is maintained unchanged.

8. An air conditioning operation control device, characterized in that: include: The fluctuation detection module is used to detect whether the newly added indoor units will cause the one-to-many air-conditioning units to meet the preset fluctuation conditions if there is a need to add new indoor units to the one-to-many air-conditioning units; A disturbance analysis module is used to perform disturbance analysis based on the operating parameters of the newly added indoor units to determine the opening adjustment value if the one-to-many air-conditioning units meet the preset fluctuation conditions; an operation control module, configured to control the newly added indoor unit to start and operate after increasing the opening of the indoor electronic expansion valve of the already turned on indoor unit according to the opening adjustment amount; Among them, the operating parameters include the rated capacity and the required indoor electronic expansion valve opening; the disturbance analysis module is also used to perform an equivalent calculation based on the rated capacity, the required indoor electronic expansion valve opening, and the preset heat exchanger volume ratio corresponding to the required new indoor unit to obtain the equivalent opening value of the required new indoor unit; perform opening calculation based on the equivalent opening value and the preset heat exchanger volume ratio corresponding to the already turned on indoor unit to obtain the opening adjustment amount.

9. An air conditioning system, characterized in that: include: An outdoor unit, a controller and multiple indoor units, the indoor unit is provided with an indoor electronic expansion valve and an indoor heat exchanger, the indoor electronic expansion valve and the indoor unit are respectively connected to the outdoor unit, the indoor electronic expansion valve is connected to the controller, and the controller is used to execute the steps of the air conditioning operation control method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the air conditioning operation control method according to any one of claims 1 to 7 are implemented.

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