CN109489199B - Control method, device and system of air conditioning system and storage medium - Google Patents
Control method, device and system of air conditioning system and storage medium Download PDFInfo
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- CN109489199B CN109489199B CN201811324324.5A CN201811324324A CN109489199B CN 109489199 B CN109489199 B CN 109489199B CN 201811324324 A CN201811324324 A CN 201811324324A CN 109489199 B CN109489199 B CN 109489199B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 122
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000012937 correction Methods 0.000 claims description 38
- 238000004590 computer program Methods 0.000 claims description 11
- 230000002829 reductive effect Effects 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The invention relates to a control method, a device and a system of an air conditioning system and a storage medium, wherein the control method comprises the following steps: monitoring a predetermined water temperature of the air conditioning system; when the preset water temperature is smaller than a preset value, controlling the opening of the outdoor units of the air conditioning system in a first starting number; the first starting-up quantity is larger than a second starting-up quantity, and the second starting-up quantity is the starting-up quantity of the outdoor unit when the preset water temperature is larger than or equal to a preset value. By adopting the method, the device or the system, the starting number of the outdoor units can be increased and the heating capacity of the air conditioning system can be improved when the preset water temperature of the air conditioning system is less than the preset value.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a control method, a device and a system of an air conditioner system and a storage medium.
Background
Along with the improvement of living and working levels of people, more and more air conditioning systems are put into use. Among them, the water source multi-split air conditioning system using water as a cold and heat source is also more and more widely used.
When the existing water source multi-split air conditioner heats at a low water inlet temperature, in order to prevent a heat exchanger exchanging heat with water from freezing in a starting operation stage, the frequency of a compressor is generally controlled at a lower frequency, so that the pressure of evaporation can be increased, the temperature of evaporation increased by the pressure must be higher than the ratio, and the heat exchange temperature difference with water can be reduced. Although the method can prevent the heat exchanger from freezing to a certain extent, the heat exchange quantity is low due to the fact that the compressor is in a low frequency for a long time, the heating air-out temperature is maintained at a low temperature for a long time, and the customer satisfaction degree is reduced.
Disclosure of Invention
In view of the above, the present invention provides a method, an apparatus, a system and a storage medium for controlling an air conditioning system to overcome the disadvantages of the prior art. The problem of reduce compressor frequency and lead to the heating capacity low for avoiding air conditioning system heat exchanger freezes is solved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control method of an air conditioning system, comprising:
monitoring a predetermined water temperature of the air conditioning system;
when the preset water temperature is smaller than a preset value, controlling the opening of the outdoor units of the air conditioning system in a first starting number;
the first starting-up quantity is larger than a second starting-up quantity, and the second starting-up quantity is the starting-up quantity of the outdoor unit when the preset water temperature is larger than or equal to a preset value.
Optionally, the method further includes:
determining the current working stage of the air conditioning system;
and determining the preset value according to the current working stage.
Optionally, the current working phase includes a starting phase or an operating phase; the determining the preset value according to the current working phase includes:
when the current working stage is a starting stage, determining that the preset value is a first preset value; and/or the presence of a gas in the gas,
when the current working stage is an operation stage, determining that the preset value is a second preset value;
wherein the first preset value is less than or equal to the second preset value.
Optionally, the method further includes:
and determining the current operation mode of the air conditioning system so that the air conditioning system is in heating operation in the current operation mode, and controlling the opening of the outdoor units of the first starting number of the air conditioning system when the preset water temperature is less than a preset value.
Optionally, the controlling the opening of the outdoor units of the first starting number of the air conditioning system includes:
acquiring the total capacity of a current indoor unit, wherein the total capacity of the current indoor unit is the total capacity of the currently started indoor unit of the air conditioning system;
acquiring a preset water temperature correction parameter, wherein the water temperature correction parameter is the ratio of the total capacity of an indoor unit to the total capacity of an outdoor unit;
determining the outdoor unit needing to be opened currently according to the total capacity of the current indoor unit and the water temperature correction parameter;
controlling the opening of the outdoor unit needing to be opened currently;
and the number of the outdoor units which need to be started currently is a first starting number.
Optionally, the method further includes:
when the preset water temperature is larger than or equal to the preset value, calculating the total capacity of the theoretical outdoor unit according to the total capacity of the current indoor unit and the water temperature correction parameter;
calculating the total capacity of the outdoor units with different number combinations;
when the total capacity of the theoretical outdoor unit is larger than the first total capacity and smaller than or equal to the second total capacity, determining the outdoor unit corresponding to the second total capacity as the outdoor unit needing to be opened currently;
the outdoor units corresponding to the second total capacity comprise the outdoor units corresponding to the first total capacity, and the quantity of the outdoor units is one more.
Optionally, the determining, according to the total capacity of the current indoor unit and the water temperature correction parameter, the outdoor unit that needs to be opened currently includes:
multiplying the water temperature correction parameter by a preset discount coefficient to obtain a reduced water temperature correction parameter;
calculating the total capacity of the theoretical outdoor unit according to the total capacity of the current indoor unit and the reduced water temperature correction parameter;
and calculating the ratio of the total capacity of the theoretical outdoor unit to the single capacity of each outdoor unit, determining an integer which is greater than or equal to the ratio and is closest to the ratio as the starting number of the theoretical outdoor unit, and determining the outdoor units with the number consistent with the starting number of the theoretical outdoor units as the outdoor units needing to be started currently.
Optionally, the predetermined water temperature includes:
the inlet water temperature of a heat exchanger of an indoor unit of the air conditioning system; or,
and the outlet water temperature of a heat exchanger of the indoor unit of the air conditioning system.
A control device of an air conditioning system, comprising:
the temperature monitoring module is used for monitoring the preset water temperature of the air conditioning system;
the outdoor unit starting number control module is used for controlling the starting of the outdoor units of the first starting number of the air conditioning system when the preset water temperature is smaller than a preset value;
the first starting-up quantity is larger than a second starting-up quantity, and the second starting-up quantity is the starting-up quantity of the outdoor unit when the preset water temperature is larger than or equal to a preset value.
An air conditioning system comprising:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program;
the processor is used for calling and executing the computer program in the memory so as to execute the control method of the air conditioning system.
Optionally, the air conditioning system is a water source multi-split air conditioning system.
A storage medium storing a computer program which, when executed by a processor, implements the steps in the control method of an air conditioning system as described above.
The technical scheme provided by the application can comprise the following beneficial effects:
the application discloses a control method of a water source multi-split air conditioner, which comprises the following steps: acquiring the water source temperature of a real-time unit of the water source multi-split air conditioner; determining the operation mode of the water source multi-connected unit according to the water source temperature of the real-time unit; the operation modes include: a low temperature operation mode and a normal operation mode; and if the water source multi-split air conditioner is in the low-temperature operation mode, adjusting the starting number of the external unit of the water source multi-split air conditioner according to preset internal and external unit repairing parameters. The real-time unit water source temperature through judging the many online machines in water source can adjust the start quantity of outer machine in this application, when the many online machines in water source is in low temperature operation mode, increases the start quantity of outer machine to this reduction of evaporating pressure when restraining the many online heat transfer promotes the refrigerant circulation volume, and then draws the air-out temperature of high indoor set fast, improves the unit heating capacity, promotes user product experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for controlling an air conditioning system according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for controlling an air conditioning system according to another embodiment of the present invention;
fig. 3 is a block diagram of a control apparatus of an air conditioning system according to an embodiment of the present invention;
fig. 4 is a structural diagram of an air conditioning system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a flowchart of a control method of an air conditioning system according to an embodiment of the present invention. Referring to fig. 1, a control method of an air conditioning system includes:
step 101: monitoring a predetermined water temperature of the air conditioning system;
step 102: when the preset water temperature is smaller than a preset value, controlling the opening of the outdoor units of the air conditioning system in a first starting number;
the first starting-up quantity is larger than a second starting-up quantity, and the second starting-up quantity is the starting-up quantity of the outdoor unit when the preset water temperature is larger than or equal to a preset value.
Further, the method of the present application further includes: and determining the current operation mode of the air conditioning system so that the air conditioning system is in heating operation in the current operation mode, and controlling the opening of the outdoor units of the first starting number of the air conditioning system when the preset water temperature is less than a preset value.
Meanwhile, the application also discloses a method for specifically adjusting the opening number of the external unit, and the reference is as follows:
acquiring the total capacity of a current indoor unit, wherein the total capacity of the current indoor unit is the total capacity of the currently started indoor unit of the air conditioning system;
acquiring a preset water temperature correction parameter, wherein the water temperature correction parameter is the ratio of the total capacity of an indoor unit to the total capacity of an outdoor unit;
determining the outdoor unit needing to be opened currently according to the total capacity of the current indoor unit and the water temperature correction parameter;
controlling the opening of the outdoor unit needing to be opened currently;
and the number of the outdoor units which need to be started currently is a first starting number.
Furthermore, a method for determining the outdoor unit which needs to be opened currently according to the total capacity of the current indoor unit and the water temperature correction parameter is specifically as follows:
multiplying the water temperature correction parameter by a preset discount coefficient to obtain a reduced water temperature correction parameter;
calculating the total capacity of the theoretical outdoor unit according to the total capacity of the current indoor unit and the reduced water temperature correction parameter;
and calculating the ratio of the total capacity of the theoretical outdoor unit to the single capacity of each outdoor unit, determining an integer which is greater than or equal to the ratio and is closest to the ratio as the starting number of the theoretical outdoor unit, and determining the outdoor units with the number consistent with the starting number of the theoretical outdoor units as the outdoor units needing to be started currently.
When the preset water temperature is greater than or equal to the preset value, calculating the total capacity of the theoretical outdoor unit according to the total capacity of the current indoor unit and the water temperature correction parameter;
calculating the total capacity of the outdoor units with different number combinations;
when the total capacity of the theoretical outdoor unit is larger than the first total capacity and smaller than or equal to the second total capacity, determining the outdoor unit corresponding to the second total capacity as the outdoor unit needing to be opened currently;
the outdoor units corresponding to the second total capacity comprise the outdoor units corresponding to the first total capacity, and the quantity of the outdoor units is one more.
It should be noted that the predetermined water temperature includes: the inlet water temperature of a heat exchanger of an indoor unit of an air conditioning system; or the outlet water temperature of a heat exchanger of an indoor unit of the air conditioning system.
The method can control the running number of the outdoor units in the air conditioning system according to the inlet water temperature or the outlet water temperature of the air conditioning system. When the water inlet temperature or the water outlet temperature is lower, the starting number of the outdoor unit is determined according to the total capacity of the indoor unit, the total capacity of the outdoor unit and the preset water temperature correction parameter, so that the starting number of the outdoor unit is increased, the reduction of the evaporation pressure of the heat exchanger during heat exchange is restrained, the refrigerant circulation quantity is increased, the air outlet temperature of the indoor unit is increased rapidly, the heating capacity of the air conditioning system at low temperature is improved, and the product experience of a user is greatly improved.
For a more detailed description of the control method of the air conditioning system in the present application, another more detailed embodiment is now provided, with reference to the following:
fig. 2 is a flowchart of a control method of an air conditioning system according to another embodiment of the present invention. Referring to fig. 2: a control method of an air conditioning system, comprising:
step 201: monitoring a predetermined water temperature of the air conditioning system;
step 202: determining the current working stage of the air conditioning system; the current working phase comprises a starting phase or an operating phase;
step 203: when the current working stage is a starting stage, determining that the preset value is a first preset value;
step 204: when the preset water temperature is smaller than a first preset value, controlling the opening of a first starting number of outdoor units of the air conditioning system;
step 205: when the current working stage is an operation stage, determining that the preset value is a second preset value;
step 206: when the preset water temperature is smaller than a second preset value, controlling the opening of the outdoor units of the air conditioning system in the first starting number;
wherein the first preset value is less than or equal to the second preset value; the first starting-up quantity is larger than a second starting-up quantity, and the second starting-up quantity is the starting-up quantity of the outdoor unit when the preset water temperature is larger than or equal to a preset value.
The above control method will now be described in detail by way of example:
when the air conditioning system is in a starting stage, if it is established that a first preset value of the monitored preset water temperature minus the normal inlet water temperature is less than 0, it means that the inlet water temperature is low, and the heat exchanger is adversely affected at this temperature, so the number of outdoor units participating in the system cycle needs to be increased, that is, the water temperature correction parameter needs to be revised, and it is required to ensure that the water temperature correction parameter α is less than 1 (for example, α is 0.85), and the following operations are performed on the water temperature revision parameter: k × α ═ K', where K < 1, K is a correction factor, thereby increasing the number of external units of the system cycle.
When the air conditioning system is in a starting stage, if the first preset value of the monitored system preset water temperature minus the normal water inlet temperature is not less than 0, the water inlet temperature is high, the heat exchanger cannot be influenced badly at the temperature, the external machine module participating in system circulation can operate normally, namely the water temperature correction parameter alpha is 1, and the water temperature correction parameter is not modified.
When the air conditioning system is in a normal operation stage, the monitored second preset value of the preset water temperature of the system minus the normal water inlet temperature is not equal to 0, the water inlet temperature is high, the heat exchanger cannot be influenced badly at the temperature, the external machine module participating in system circulation can operate normally, namely the water temperature correction parameter alpha is 1, and the water temperature correction parameter is not modified.
When the air conditioning system is in a normal operation stage, and a second preset value that the monitored system preset water temperature is less than the normal inlet water temperature is established, the inlet water temperature is low, and adverse effects are caused on the heat exchanger at the temperature, so that the number of external units participating in system circulation needs to be increased, that is, the water temperature correction parameter needs to be revised, and it is required to ensure that the water temperature correction parameter α is less than 1 (for example, α is 0.85), the following operations are performed on the water temperature revision parameter: k × α ═ K', where K < 1, thereby increasing the number of external units participating in the system cycle.
It should be noted that the value of the correction coefficient K is a determination value that determines how many external units participate in operation according to the total capacity of the internal unit, (generally, K is about 0.8, that is, when the total capacity of the internal unit reaches 80% of the current capacity of the external unit, the capacity overflows and is allocated to the next external unit), and is preset before leaving the factory.
When an outdoor unit is developed, through a heating test in a laboratory, the relation between low pressure and preset water temperature under low water inlet temperature is obtained, namely when the preset water temperature is too low, the low pressure is too low, and further, the heat exchanger is in danger of freezing, so that a first preset value and a second preset value can be obtained; since the system is unstable in the startup phase, the phenomenon of bouncing of the evaporating pressure of the system is likely to occur, and thus the first preset value is greater than or equal to the second preset value.
According to the method, the current working stage of the air conditioning system is judged, when the air conditioning system is in the starting stage, the preset water temperature is compared with the first preset value, when the air conditioning system is in the running stage, the preset water temperature is compared with the second preset value, so that the air conditioning system is controlled more accurately, the low pressure of the system can be effectively increased under the condition that water is fed into the air conditioning system at low temperature or discharged from the air conditioning system at low temperature in the starting and running stages, the freezing of a heat exchanger is avoided, the circulation volume of a refrigerant is increased, the air outlet temperature of an indoor unit is further increased rapidly, the heating capacity of the air conditioning unit is improved, and the product experience of a.
Corresponding to the control method of the air conditioning system provided by the embodiment of the invention, the embodiment of the invention also provides a control device of the air conditioning system. Please see the examples below.
Fig. 3 is a block diagram of a control device of an air conditioning system according to an embodiment of the present invention. Referring to fig. 3, a control apparatus of an air conditioning system includes:
the temperature monitoring module 301 is used for monitoring the preset water temperature of the air conditioning system;
an outdoor unit starting number control module 302, configured to control starting of a first starting number of outdoor units of the air conditioning system when the predetermined water temperature is less than a preset value;
the first starting-up quantity is larger than a second starting-up quantity, and the second starting-up quantity is the starting-up quantity of the outdoor unit when the preset water temperature is larger than or equal to a preset value.
The control device of the air conditioning system can promote more or all outdoor units to participate in operation by monitoring the low water inlet temperature or the low water outlet temperature, effectively improves low pressure, avoids freezing of the heat exchanger, improves refrigerant circulation quantity, further quickly increases the air outlet temperature of the indoor unit, and improves the heating capacity of the system.
In order to more clearly introduce a hardware system for implementing the embodiment of the present invention, an embodiment of the present invention further provides an air conditioning system corresponding to the control method of the air conditioning system provided in the embodiment of the present invention. Please see the examples below.
Fig. 4 is a structural diagram of an air conditioning system according to an embodiment of the present invention. Referring to fig. 4, an air conditioning system includes:
a processor 401 and a memory 402 connected to the processor; the memory 402 is used for storing computer programs;
the processor 401 is configured to call and execute the computer program in the memory 402 to execute the control method of the air conditioning system as described above.
Wherein, air conditioning system is water source multi-connected air conditioning system.
Still further, another embodiment is disclosed in the present application, which is a storage medium storing a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the control method of the air conditioning system as described above.
In this embodiment, because the control method of the air conditioning system is adopted, similar beneficial effects are achieved, and details are not repeated here.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. A control method of an air conditioning system, comprising:
monitoring a predetermined water temperature of the air conditioning system;
when the preset water temperature is smaller than a preset value, the outdoor units of the air conditioning system with the first starting number are controlled to be started;
the first starting-up quantity is larger than a second starting-up quantity, and the second starting-up quantity is the starting-up quantity of the outdoor unit when the preset water temperature is larger than or equal to a preset value;
the controlling of the opening of the outdoor units of the first starting number of the air conditioning system includes:
acquiring the total capacity of a current indoor unit, wherein the total capacity of the current indoor unit is the total capacity of the currently started indoor unit of the air conditioning system;
acquiring a preset water temperature correction parameter, wherein the water temperature correction parameter is the ratio of the total capacity of an indoor unit to the total capacity of an outdoor unit;
determining the outdoor unit needing to be opened currently according to the total capacity of the current indoor unit and the water temperature correction parameter;
controlling the opening of the outdoor unit needing to be opened currently;
and the number of the outdoor units which need to be started currently is a first starting number.
2. The control method of an air conditioning system according to claim 1, further comprising:
determining the current working stage of the air conditioning system;
and determining the preset value according to the current working stage.
3. The control method of an air conditioning system according to claim 2, wherein the current operation phase includes a start-up phase or an operation phase; the determining the preset value according to the current working phase includes:
when the current working stage is a starting stage, determining that the preset value is a first preset value; and/or the presence of a gas in the gas,
when the current working stage is an operation stage, determining that the preset value is a second preset value;
wherein the first preset value is less than or equal to the second preset value.
4. The control method of an air conditioning system according to claim 1, further comprising:
and determining the current operation mode of the air conditioning system so that the air conditioning system is in heating operation in the current operation mode, and controlling the opening of the outdoor units of the first starting number of the air conditioning system when the preset water temperature is less than a preset value.
5. The control method of an air conditioning system according to claim 1, further comprising:
when the preset water temperature is larger than or equal to the preset value, calculating the total capacity of the theoretical outdoor unit according to the total capacity of the current indoor unit and the water temperature correction parameter;
calculating the total capacity of the outdoor units with different number combinations;
when the total capacity of the theoretical outdoor unit is larger than the first total capacity and smaller than or equal to the second total capacity, determining the outdoor unit corresponding to the second total capacity as the outdoor unit needing to be opened currently;
the outdoor units corresponding to the second total capacity comprise the outdoor units corresponding to the first total capacity, and the quantity of the outdoor units is one more.
6. The method of claim 1, wherein the determining the outdoor unit to be currently opened according to the total capacity of the current indoor units and the water temperature correction parameter comprises:
multiplying the water temperature correction parameter by a preset discount coefficient to obtain a reduced water temperature correction parameter;
calculating the total capacity of the theoretical outdoor unit according to the total capacity of the current indoor unit and the reduced water temperature correction parameter;
and calculating the ratio of the total capacity of the theoretical outdoor unit to the single capacity of each outdoor unit, determining an integer which is greater than or equal to the ratio and is closest to the ratio as the starting number of the theoretical outdoor unit, and determining the outdoor units with the number consistent with the starting number of the theoretical outdoor units as the outdoor units needing to be started currently.
7. The control method of an air conditioning system according to any one of claims 1 to 6, wherein the predetermined water temperature includes:
the inlet water temperature of a heat exchanger of an indoor unit of the air conditioning system; or,
and the outlet water temperature of a heat exchanger of the indoor unit of the air conditioning system.
8. A control device of an air conditioning system, characterized by comprising:
the temperature monitoring module is used for monitoring the preset water temperature of the air conditioning system;
the outdoor unit starting number control module is used for controlling the starting of the outdoor units of the first starting number of the air conditioning system when the preset water temperature is smaller than a preset value;
the first starting-up quantity is larger than a second starting-up quantity, and the second starting-up quantity is the starting-up quantity of the outdoor unit when the preset water temperature is larger than or equal to a preset value;
the external unit starting number control module is specifically used for:
acquiring the total capacity of a current indoor unit, wherein the total capacity of the current indoor unit is the total capacity of the currently started indoor unit of the air conditioning system;
acquiring a preset water temperature correction parameter, wherein the water temperature correction parameter is the ratio of the total capacity of an indoor unit to the total capacity of an outdoor unit;
determining the outdoor unit needing to be opened currently according to the total capacity of the current indoor unit and the water temperature correction parameter;
controlling the opening of the outdoor unit needing to be opened currently;
and the number of the outdoor units which need to be started currently is a first starting number.
9. An air conditioning system, comprising:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program;
the processor is used for calling and executing the computer program in the memory to execute the control method of the air conditioning system according to any one of claims 1 to 7.
10. The air conditioning system of claim 9, wherein the air conditioning system is a water source multi-split air conditioning system.
11. A storage medium characterized by storing a computer program which, when executed by a processor, implements each step in the control method of an air conditioning system according to any one of claims 1 to 7.
Priority Applications (1)
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| CN110160126B (en) * | 2019-04-18 | 2021-02-09 | 广东智科电子股份有限公司 | Variable-frequency heating multi-split control method, device, equipment and storage medium |
| CN111998445A (en) * | 2020-08-13 | 2020-11-27 | 深圳中集天达吉荣航空制冷有限公司 | Airplane ground air conditioning unit and cooling method thereof |
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