CN115930407A - Air conditioner control method and control device, air conditioner system and storage medium - Google Patents
Air conditioner control method and control device, air conditioner system and storage medium Download PDFInfo
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- CN115930407A CN115930407A CN202211499844.6A CN202211499844A CN115930407A CN 115930407 A CN115930407 A CN 115930407A CN 202211499844 A CN202211499844 A CN 202211499844A CN 115930407 A CN115930407 A CN 115930407A
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000001704 evaporation Methods 0.000 claims abstract description 22
- 230000008020 evaporation Effects 0.000 claims abstract description 22
- 238000005057 refrigeration Methods 0.000 claims abstract description 4
- 238000004378 air conditioning Methods 0.000 claims description 25
- 238000004891 communication Methods 0.000 claims description 24
- 230000001276 controlling effect Effects 0.000 claims description 17
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 230000006641 stabilisation Effects 0.000 claims description 7
- 238000011105 stabilization Methods 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000003303 reheating Methods 0.000 claims 3
- 230000003247 decreasing effect Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000010726 refrigerant oil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The disclosure provides an air conditioner control method, an air conditioner control device, an air conditioner system and a storage medium, and relates to the field of control. The air conditioner control method comprises the following steps: in the frequency increasing stage of the compressor in the refrigeration mode, the opening degree of a first indoor electronic expansion valve communicated with a first indoor heat exchanger in an evaporation state is reduced; the opening degree of a first outdoor electronic expansion valve communicated with the first outdoor heat exchanger in an evaporation state is increased.
Description
Technical Field
The present disclosure relates to the field of control, and in particular, to an air conditioner control method and device, an air conditioning system, and a storage medium.
Background
When the output of cold or heat of the inverter air conditioner is low, the refrigerant oil of the air conditioner can be accumulated in each part of the air conditioning system. Under the condition that the inverter air conditioner runs in the mode for a long time, the oil shortage condition occurs in the compressor, so that the compressor is abraded, and the service life of the compressor is shortened. In order to solve the problem, after the inverter air conditioner operates for a period of time under low load, the flow rate of the refrigerant is increased by increasing the operating frequency of the compressor in the frequency increasing stage of the compressor, so as to recover the refrigeration oil in the system. Then the compressor returns to the normal working state after the frequency stabilization stage and the frequency reduction stage of the compressor.
Disclosure of Invention
The inventor notices that in the related art, in the frequency-increasing oil return process, the heat exchange quantity of the indoor heat exchanger is increased along with the increase of the frequency of the compressor, so that the temperature and humidity stable state of the current indoor environment is broken, the temperature of the indoor environment is fluctuated severely, and the use experience of a user is reduced.
In view of the above, this disclosure provides an air conditioner control scheme, through the aperture of adjusting the electronic flow valve of air conditioner evaporimeter side to under the condition that compressor frequency risees, reach indoor heat exchanger's stable output, thereby effectively slow down the humiture fluctuation of indoor side, effectively promote user's use and experience.
According to a first aspect of an embodiment of the present disclosure, there is provided an air conditioner control method including: in the compressor frequency raising stage of the refrigeration mode, the opening degree of a first indoor electronic expansion valve communicated with a first indoor heat exchanger in an evaporation state is reduced; the opening degree of the first outdoor electronic expansion valve communicated with the first outdoor heat exchanger in the evaporation state is increased.
In some embodiments, reducing the opening degree of the first indoor electronic expansion valve in communication with the first indoor heat exchanger in an evaporated state comprises: determining a first opening degree adjusting value of the first indoor electronic expansion valve according to a difference value between the current indoor temperature and a preset temperature; determining a second opening degree adjusting value of the first indoor electronic expansion valve according to a difference value between the current outlet pipe temperature and the current inlet pipe temperature of the first indoor heat exchanger; and when the opening degree adjusting directions of the first opening degree adjusting value and the second opening degree adjusting value are consistent, reducing the opening degree of the first indoor electronic expansion valve according to the larger opening degree adjusting value of the first opening degree adjusting value and the second opening degree adjusting value.
In some embodiments, reducing the opening degree of the first indoor electronic expansion valve in communication with the first indoor heat exchanger in an evaporated state further comprises: and under the condition that the opening degree adjusting directions of the first opening degree adjusting value and the second opening degree adjusting value are not consistent, reducing the opening degree of the first indoor electronic expansion valve according to the second opening degree adjusting value.
In some embodiments, increasing the opening degree of the first outdoor electronic expansion valve in communication with the first outdoor heat exchanger in an evaporative state comprises: determining a third opening degree adjusting value of the first outdoor electronic expansion valve according to the difference value between the current indoor temperature and the preset temperature; determining a fourth degree adjusting value of the first outdoor electronic expansion valve according to the difference value of the current outlet pipe temperature and the current inlet pipe temperature of the first outdoor heat exchanger; and under the condition that the opening degree adjusting directions of the third opening degree adjusting value and the fourth opening degree adjusting value are consistent, adjusting and increasing the opening degree of the first outdoor electronic expansion valve according to the larger opening degree of the third opening degree adjusting value and the fourth opening degree adjusting value.
In some embodiments, increasing the opening degree of the first outdoor electronic expansion valve in communication with the first outdoor heat exchanger in the evaporation state further comprises: and under the condition that the opening degree adjusting directions of the third opening degree adjusting value and the fourth opening degree adjusting value are not consistent, increasing the opening degree of the first outdoor electronic expansion valve according to the fourth opening degree adjusting value.
In some embodiments, the rotation speed of the first outdoor fan for controlling the heat exchange amount of the first outdoor heat exchanger is increased according to the difference between the current outlet pipe temperature and the current inlet pipe temperature of the second indoor heat exchanger in the reheated state.
In some embodiments, the opening degree of the second indoor electronic expansion valve communicating with the second indoor heat exchanger in the reheat state is decreased; the opening degree of the second outdoor electronic expansion valve communicated with the second outdoor heat exchanger in the condensed state is increased.
In some embodiments, reducing the opening degree of the second indoor electronic expansion valve communicating with the second indoor heat exchanger in the reheat state comprises: determining a fifth opening degree regulating value of the second indoor electronic expansion valve according to the difference value between the current indoor temperature and the preset temperature; determining a sixth opening adjustment value of the second indoor electronic expansion valve according to a difference value between the current outlet pipe temperature and the current inlet pipe temperature of the second indoor heat exchanger; and when the opening degree adjusting directions of the fifth opening degree adjusting value and the sixth opening degree adjusting value are consistent, reducing the opening degree of the second indoor electronic expansion valve according to the larger opening degree adjusting value of the fifth opening degree adjusting value and the sixth opening degree adjusting value.
In some embodiments, reducing the opening degree of the second indoor electronic expansion valve in communication with the second indoor heat exchanger in the reheat state further comprises: and when the opening degree adjusting directions of the fifth opening degree adjusting value and the sixth opening degree adjusting value are not consistent, reducing the opening degree of the second indoor electronic expansion valve according to the sixth opening degree adjusting value.
In some embodiments, increasing the opening degree of the second outdoor electronic expansion valve in communication with the second outdoor heat exchanger in the condensed state comprises: determining a seventh opening adjustment value of the second outdoor electronic expansion valve according to the difference value between the current indoor temperature and the preset temperature; determining an eighth opening adjustment value of the second outdoor electronic expansion valve according to the difference value between the current outlet pipe temperature and the current inlet pipe temperature of the second outdoor heat exchanger; and when the opening degree adjusting directions of the seventh opening degree adjusting value and the eighth opening degree adjusting value are consistent, increasing the opening degree of the second outdoor electronic expansion valve according to the larger opening degree adjustment of the seventh opening degree adjusting value and the eighth opening degree adjusting value.
In some embodiments, increasing the opening degree of the second outdoor electronic expansion valve in communication with the second outdoor heat exchanger in the condensed state further comprises: and when the opening degree adjusting directions of the seventh opening degree adjusting value and the eighth opening degree adjusting value are not consistent, increasing the opening degree of the second outdoor electronic expansion valve according to the eighth opening degree adjusting value.
In some embodiments, the rotation speed of the second outdoor fan for controlling the heat exchange amount of the second outdoor heat exchanger is reduced according to the difference between the current outlet pipe temperature and the current inlet pipe temperature of the first indoor heat exchanger.
In some embodiments, in the frequency increasing stage of the compressor, if the difference between the current indoor temperature and the preset temperature is greater than a first threshold, controlling the frequency of the compressor to be kept unchanged; and under the condition that the absolute value of the difference value between the current indoor temperature and the preset temperature is smaller than a second threshold, continuously increasing the frequency of the compressor, wherein the second threshold is smaller than the first threshold.
In some embodiments, during the compressor frequency stabilization phase, the opening degrees of the first indoor electronic expansion valve in communication with the first indoor heat exchanger in the evaporation state, the second indoor electronic expansion valve in communication with the second indoor heat exchanger in the reheat state, the first outdoor electronic expansion valve in communication with the first outdoor heat exchanger in the evaporation state, and the second outdoor electronic expansion valve in communication with the second outdoor heat exchanger in the condensation state are maintained unchanged.
In some embodiments, during the frequency stabilization phase of the compressor, the rotation speed of the first outdoor fan for controlling the heat exchange amount of the first outdoor heat exchanger and the rotation speed of the second outdoor fan for controlling the heat exchange amount of the second outdoor heat exchanger are maintained to be constant.
In some embodiments, during a compressor downconversion stage, increasing the opening degrees of the first indoor electronic expansion valve and the second indoor electronic expansion valve; reducing the opening degrees of the first outdoor electronic expansion valve and the second outdoor electronic expansion valve.
In some embodiments, during a compressor down-conversion stage, the rotation speed of the first outdoor fan is reduced according to a difference between a current outlet pipe temperature and a current inlet pipe temperature of the second indoor heat exchanger; and increasing the rotating speed of the second outdoor fan according to the difference value between the current outlet pipe temperature and the current inlet pipe temperature of the first indoor heat exchanger.
According to a second aspect of the embodiments of the present disclosure, there is provided an air conditioning control apparatus including: a memory configured to store instructions; a processor coupled to the memory, the processor configured to perform a method implementing any of the embodiments described above based on instructions stored by the memory.
According to a third aspect of an embodiment of the present disclosure, there is provided an air conditioning system including: the air conditioning control device according to any of the above embodiments.
According to a fourth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, in which computer instructions are stored, and when executed by a processor, implement the method according to any one of the embodiments described above.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the embodiments or the description of 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 disclosure, and for those skilled in the art, other drawings may be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural view of an air conditioning system according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of an air conditioner control method according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating an air conditioner control method according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an air conditioning control device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an air conditioning system according to another embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the embodiments described are only some embodiments of the present disclosure, rather than all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
Fig. 1 is a schematic structural diagram of an air conditioning system according to an embodiment of the present disclosure. In fig. 1, the air conditioning system includes an indoor unit 100 and an outdoor unit 200. Reference numeral 1 denotes a compressor, reference numeral 2 denotes a valve assembly, reference numeral 3 denotes a first indoor heat exchanger, reference numeral 4 denotes a second indoor heat exchanger, reference numeral 5 denotes a first indoor electronic expansion valve communicating with the first indoor heat exchanger 3, reference numeral 6 denotes a second indoor electronic expansion valve communicating with the second indoor heat exchanger 4, reference numerals 7 to 9 denote stop valves, and reference numeral 10 denotes an indoor fan. Reference numeral 11 denotes a first outdoor heat exchanger, reference numeral 12 denotes a second outdoor heat exchanger, reference numeral 13 denotes a first outdoor electronic expansion valve communicated with the first outdoor heat exchanger 11, reference numeral 14 denotes a second outdoor electronic expansion valve communicated with the second outdoor heat exchanger 12, reference numeral 15 denotes an outdoor fan for controlling the heat exchange amount of the first outdoor heat exchanger 11, reference numeral 16 denotes an outdoor fan for controlling the heat exchange amount of the second outdoor heat exchanger 12, and reference numerals 17 to 20 denote stop valves.
It is to be noted that, in order to facilitate temperature and humidity control, one of the first indoor heat exchanger 3 and the second indoor heat exchanger 4 operates in an evaporation state and the other operates in a condensation state (reheat state), and one of the first outdoor heat exchanger 11 and the second outdoor heat exchanger 12 operates in an evaporation state and the other operates in a condensation state. The first indoor heat exchanger 3, the second indoor heat exchanger 4, the first outdoor heat exchanger 11, and the second outdoor heat exchanger 12 can be switched arbitrarily between the evaporation state and the condensation state by using the control of the valve assembly 5.
For example, it is assumed that the first indoor heat exchanger 3 is operated in an evaporation state, the second indoor heat exchanger 4 is operated in a reheat state, the first outdoor heat exchanger 11 is operated in an evaporation state, and the second outdoor heat exchanger 12 is operated in a condensation state.
Fig. 2 is a flowchart illustrating an air conditioner control method according to an embodiment of the present disclosure. In some embodiments, the following air conditioning control method is performed by an air conditioning control device.
In step 201, in the compressor up-conversion stage of the cooling mode, the opening degree of the first indoor electronic expansion valve communicated with the first indoor heat exchanger in the evaporation state is reduced.
In some embodiments, as shown in fig. 1, in the process of decreasing the opening degree of the first indoor electronic expansion valve 5, a first opening degree adjustment value Δ EXV1 of the first indoor electronic expansion valve 5 is determined according to a difference Δ T between the current indoor temperature and the preset temperature. And determining a second opening degree adjusting value delta EXV2 of the first indoor electronic expansion valve 5 according to the difference value (namely the superheat degree) between the current outlet pipe temperature and the current inlet pipe temperature of the first indoor heat exchanger 3.
If the opening degree adjustment directions of Δ EXV1 and Δ EXV2 coincide, the opening degree of the first indoor electronic expansion valve 5 is decreased by the larger value of Δ EXV1 and Δ EXV2.
If the opening degree adjustment directions of Δ EXV1 and Δ EXV2 do not coincide, it indicates that the opening degree control is in conflict, in which case the opening degree of the first indoor electronic expansion valve 5 is decreased in accordance with Δ EXV2.
At step 202, the opening degree of the first outdoor electronic expansion valve in communication with the first outdoor heat exchanger in an evaporative state is increased.
In some embodiments, as shown in fig. 1, in the process of reducing the opening degree of the first outdoor electronic expansion valve 13, the third opening degree adjustment value Δ EXV3 of the first outdoor electronic expansion valve 13 is determined according to the difference Δ T between the current indoor temperature and the preset temperature. The fourth opening adjustment value Δ EXV4 of the first outdoor electronic expansion valve 13 is determined according to the difference (i.e., superheat) between the current outlet pipe temperature and the current inlet pipe temperature of the first outdoor heat exchanger 11.
If the opening degree adjustment directions of Δ EXV3 and Δ EXV4 coincide, the opening degree of the first outdoor electronic expansion valve 13 is increased in accordance with the larger opening degree adjustment of Δ EXV3 and Δ EXV4.
If the opening degree adjustment directions of Δ EXV3 and Δ EXV4 do not coincide, it indicates that the opening degree control conflicts, in which case the opening degree of the first outdoor electronic expansion valve 13 is increased in accordance with Δ EXV4.
In some embodiments, as shown in fig. 1, the rotation speed of the first outdoor fan 15 for controlling the heat exchange amount of the first outdoor heat exchanger 11 is increased according to the difference between the current outlet pipe temperature and the current inlet pipe temperature of the second indoor heat exchanger 4 in the reheat state, so as to increase the heat exchange amount of the first outdoor fan 15.
In the air conditioner control method according to the above embodiment of the present disclosure, in the process of the compressor frequency-up oil return in the cooling mode, the cooling capacity of the first indoor heat exchanger in the evaporation state is increased, and in this case, the cooling capacity of the first indoor heat exchanger needs to be transferred to the outdoor side, so that the opening degree of the first indoor electronic expansion valve communicating with the first indoor heat exchanger is decreased, and the opening degree of the first outdoor electronic expansion valve communicating with the first outdoor heat exchanger in the evaporation state is increased, so that the redundant cooling capacity can be transferred to the outdoor side while the indoor temperature is maintained not to be decreased. Thereby effectively avoid the undulant problem of indoor side humiture at the oil return in-process.
Fig. 3 is a flowchart illustrating an air conditioner control method according to an embodiment of the present disclosure. In some embodiments, the following air conditioning control method is performed by an air conditioning control apparatus.
It should be noted that steps 301 and 302 involved in fig. 3 are the same as steps 201 and 202 involved in fig. 2.
In step 301, in the compressor up-conversion stage of the cooling mode, the opening degree of the first indoor electronic expansion valve communicating with the first indoor heat exchanger in the evaporation state is decreased.
In step 302, the opening degree of a first outdoor electronic expansion valve in communication with the first outdoor heat exchanger in an evaporative state is increased.
In step 303, the opening degree of the second indoor electronic expansion valve communicating with the second indoor heat exchanger in the reheat state is decreased.
In some embodiments, as shown in fig. 1, in the process of lowering the second indoor electronic expansion valve 6, a fifth opening degree adjustment value Δ EXV5 of the second indoor electronic expansion valve 6 is determined according to a difference Δ T between the current indoor temperature and the preset temperature. And determining a sixth opening degree regulating value delta EXV6 of the second indoor electronic expansion valve 6 according to the difference value (namely the supercooling degree) between the current outlet pipe temperature and the current inlet pipe temperature of the second indoor heat exchanger 4.
If the opening degree adjustment directions of Δ EXV5 and Δ EXV6 coincide, the opening degree of the second indoor electronic expansion valve 6 is decreased according to the larger opening degree adjustment value of Δ EXV5 and Δ EXV6.
If the opening degree adjustment directions of Δ EXV5 and Δ EXV6 do not coincide, it indicates that the opening degree control conflicts, in which case the opening degree of the second indoor electronic expansion valve 6 is decreased according to Δ EXV6.
At step 304, the opening degree of the second outdoor electronic expansion valve in communication with the second outdoor heat exchanger in the condensed state is increased.
In some embodiments, as shown in fig. 1, in the process of adding the second outdoor electronic expansion valve 14, a seventh opening adjustment value Δ EXV7 of the second outdoor electronic expansion valve 14 is determined according to a difference Δ T between the current indoor temperature and the preset temperature. The eighth opening degree adjustment value Δ EXV8 of the second outdoor electronic expansion valve 12 is determined according to the difference (i.e., the supercooling degree) between the current outlet pipe temperature and the current inlet pipe temperature of the second outdoor heat exchanger 12.
If the opening degree adjustment directions of Δ EXV7 and Δ EXV8 are the same, the opening degree of the second outdoor electronic expansion valve 14 is increased according to the larger opening degree adjustment of Δ EXV7 and Δ EXV8.
If the opening degree adjustment directions of Δ EXV7 and Δ EXV8 coincide, it indicates that the opening degree control is in conflict, in which case the opening degree of the second outdoor electronic expansion valve 14 is increased in accordance with Δ EXV8.
In some embodiments, the rotation speed of the second outdoor fan 16 for controlling the heat exchange amount of the second outdoor heat exchanger 12 is reduced according to the difference between the current outlet pipe temperature and the current inlet pipe temperature of the first indoor heat exchanger 3.
It should be noted that the opening degree of the second indoor electronic expansion valve 6 is reduced, the opening degree of the second outdoor electronic expansion valve 14 is increased, and the rotating speed of the second outdoor fan 16 is reduced, so that the stability of indoor heat can be effectively ensured, and the fluctuation of indoor temperature and humidity can be further avoided in the oil return process.
In some embodiments, in the up-conversion stage of the compressor, if the difference between the current indoor temperature and the preset temperature is greater than the first threshold, the frequency of the compressor is controlled to be kept unchanged. And under the condition that the absolute value of the difference value between the current indoor temperature and the preset temperature is smaller than a second threshold, continuously increasing the frequency of the compressor, wherein the second threshold is smaller than the first threshold.
That is, the frequency of the compressor is not always continuously increased during the compressor up-conversion stage. And if the difference value between the current indoor temperature and the preset temperature is greater than the first threshold, controlling the frequency of the compressor to be kept unchanged. And when the absolute value of the difference value between the current indoor temperature and the preset temperature is smaller than a second threshold (for example, close to zero), continuing to increase the frequency of the compressor until the frequency of the compressor reaches a preset frequency value. Through the control, the stable output of the indoor heat exchanger can be realized, and the temperature and humidity fluctuation of the indoor side is slowed down.
In some embodiments, during the compressor frequency stabilization phase, the opening degrees of the first indoor electronic expansion valve 5 communicating with the first indoor heat exchanger 3 in the evaporation state, the second indoor electronic expansion valve 6 communicating with the second indoor heat exchanger 4 in the reheat state, the first outdoor electronic expansion valve 13 communicating with the first outdoor heat exchanger 11 in the evaporation state, and the second outdoor electronic expansion valve 14 communicating with the second outdoor heat exchanger 12 in the condensation state are maintained unchanged.
In some embodiments, during the compressor frequency stabilization phase, the rotation speed of the first outdoor fan 15 for controlling the heat exchange amount of the first outdoor heat exchanger 11 and the rotation speed of the second outdoor fan 16 for controlling the heat exchange amount of the second outdoor heat exchanger 12 are maintained constant.
In some embodiments, during the compressor down-conversion stage, the opening degrees of the first indoor electronic expansion valve 5 and the second indoor electronic expansion valve 6 are increased, and the opening degrees of the first outdoor electronic expansion valve 13 and the second outdoor electronic expansion valve 14 are decreased.
In some embodiments, during the compressor down-conversion stage, the rotation speed of the first outdoor fan 15 is reduced according to the difference between the current outlet pipe temperature and the current inlet pipe temperature of the second indoor heat exchanger 4. The rotation speed of the second outdoor fan 16 is increased according to the difference between the current outlet pipe temperature and the current inlet pipe temperature of the first indoor heat exchanger 3.
Therefore, excessive cold energy can be prevented from being transferred to the outdoor side, and fluctuation of the indoor temperature and humidity can be effectively relieved.
Fig. 4 is a schematic structural diagram of an air conditioning control device according to an embodiment of the present disclosure. As shown in fig. 4, the air conditioning control device includes a memory 41 and a processor 42.
The memory 41 is used for storing instructions, the processor 42 is coupled to the memory 41, and the processor 42 is configured to execute the method according to any one of the embodiments in fig. 2 and fig. 3 based on the instructions stored in the memory.
As shown in fig. 4, the air conditioner control device further includes a communication interface 43 for information interaction with other devices. Meanwhile, the air conditioner control device further comprises a bus 44, and the processor 42, the communication interface 43 and the memory 41 are communicated with each other through the bus 44.
The memory 41 may comprise a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 41 may also be a memory array. The storage 41 may also be partitioned, and the blocks may be combined into virtual volumes according to certain rules.
Further, the processor 42 may be a central processing unit CPU, or may be an application specific integrated circuit ASIC, or one or more integrated circuits configured to implement embodiments of the present disclosure.
The present disclosure also relates to a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the instructions, when executed by a processor, implement a method according to any one of the embodiments shown in fig. 2 or fig. 3.
Fig. 5 is a schematic structural diagram of an air conditioning system according to another embodiment of the present disclosure. As shown in fig. 5, an air conditioning control device 51 is included in the air conditioning system 50. The air conditioning control device 51 is an air conditioning control device according to any one of the embodiments of fig. 4.
In some embodiments, an air conditioning system 50 is shown in FIG. 1. In the oil return control process, the states of each part in three stages of the compressor frequency raising, frequency stabilizing and frequency reducing are shown in table 1.
TABLE 1
Through the processing, the temperature and humidity fluctuation of the indoor side can be effectively slowed down in the oil return control process, and the use experience of a user is effectively improved.
In some embodiments, the functional units described above can be implemented as general purpose processors, programmable Logic Controllers (PLCs), digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable Logic devices, discrete Gate or transistor Logic devices, discrete hardware components, or any suitable combination thereof for performing the functions described in this disclosure.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (20)
1. An air conditioner control method includes:
in the compressor frequency raising stage of the refrigeration mode, the opening degree of a first indoor electronic expansion valve communicated with a first indoor heat exchanger in an evaporation state is reduced;
the opening degree of the first outdoor electronic expansion valve communicated with the first outdoor heat exchanger in the evaporation state is increased.
2. The method of claim 1, wherein reducing an opening degree of a first indoor electronic expansion valve in communication with the first indoor heat exchanger in an evaporated state comprises:
determining a first opening degree adjusting value of the first indoor electronic expansion valve according to a difference value between the current indoor temperature and a preset temperature;
determining a second opening degree adjusting value of the first indoor electronic expansion valve according to a difference value between the current outlet pipe temperature and the current inlet pipe temperature of the first indoor heat exchanger;
and when the opening degree adjusting directions of the first opening degree adjusting value and the second opening degree adjusting value are consistent, reducing the opening degree of the first indoor electronic expansion valve according to the larger opening degree adjusting value of the first opening degree adjusting value and the second opening degree adjusting value.
3. The method of claim 2, wherein reducing the opening degree of the first indoor electronic expansion valve in communication with the first indoor heat exchanger in the evaporative state further comprises:
and when the opening degree adjusting directions of the first opening degree adjusting value and the second opening degree adjusting value are not consistent, reducing the opening degree of the first indoor electronic expansion valve according to the second opening degree adjusting value.
4. The method of claim 1, wherein increasing the opening degree of the first outdoor electronic expansion valve in communication with the first outdoor heat exchanger in the evaporative state comprises:
determining a third opening degree adjusting value of the first outdoor electronic expansion valve according to the difference value between the current indoor temperature and the preset temperature;
determining a fourth degree adjusting value of the first outdoor electronic expansion valve according to the difference value of the current outlet pipe temperature and the current inlet pipe temperature of the first outdoor heat exchanger;
and under the condition that the opening degree adjusting directions of the third opening degree adjusting value and the fourth opening degree adjusting value are consistent, increasing the opening degree of the first outdoor electronic expansion valve according to the larger opening degree adjustment of the third opening degree adjusting value and the fourth opening degree adjusting value.
5. The method of claim 4, wherein increasing the opening degree of the first outdoor electronic expansion valve in communication with the first outdoor heat exchanger in the evaporative state further comprises:
and under the condition that the opening degree adjusting directions of the third opening degree adjusting value and the fourth opening degree adjusting value are not consistent, increasing the opening degree of the first outdoor electronic expansion valve according to the fourth opening degree adjusting value.
6. The method of claim 1, further comprising:
and increasing the rotating speed of a first outdoor fan for controlling the heat exchange quantity of the first outdoor heat exchanger according to the difference value between the current outlet pipe temperature and the current inlet pipe temperature of the second indoor heat exchanger in the reheating state.
7. The method of claim 1, further comprising:
reducing the opening degree of a second indoor electronic expansion valve communicated with a second indoor heat exchanger in a reheating state;
the opening degree of the second outdoor electronic expansion valve communicated with the second outdoor heat exchanger in the condensed state is increased.
8. The method of claim 7, wherein reducing an opening degree of a second indoor electronic expansion valve in communication with a second indoor heat exchanger in a reheat state comprises:
determining a fifth opening degree regulating value of the second indoor electronic expansion valve according to the difference value between the current indoor temperature and the preset temperature;
determining a sixth opening adjustment value of the second indoor electronic expansion valve according to a difference value between the current outlet pipe temperature and the current inlet pipe temperature of the second indoor heat exchanger;
and when the opening degree adjusting directions of the fifth opening degree adjusting value and the sixth opening degree adjusting value are consistent, reducing the opening degree of the second indoor electronic expansion valve according to the larger opening degree adjusting value of the fifth opening degree adjusting value and the sixth opening degree adjusting value.
9. The method of claim 8, wherein reducing an opening degree of a second indoor electronic expansion valve in communication with a second indoor heat exchanger in a reheat state further comprises:
and when the opening degree adjusting directions of the fifth opening degree adjusting value and the sixth opening degree adjusting value are not consistent, reducing the opening degree of the second indoor electronic expansion valve according to the sixth opening degree adjusting value.
10. The method of claim 7, wherein increasing the opening degree of the second outdoor electronic expansion valve in communication with the second outdoor heat exchanger in the condensed state comprises:
determining a seventh opening adjustment value of the second outdoor electronic expansion valve according to the difference value between the current indoor temperature and the preset temperature;
determining an eighth opening adjustment value of the second outdoor electronic expansion valve according to the difference value between the current outlet pipe temperature and the current inlet pipe temperature of the second outdoor heat exchanger;
and under the condition that the opening degree adjusting directions of the seventh opening degree adjusting value and the eighth opening degree adjusting value are consistent, increasing the opening degree of the second outdoor electronic expansion valve according to the larger opening degree adjustment of the seventh opening degree adjusting value and the eighth opening degree adjusting value.
11. The method of claim 10, wherein increasing the opening degree of the second outdoor electronic expansion valve in communication with the second outdoor heat exchanger in the condensed state further comprises:
and when the opening degree adjusting directions of the seventh opening degree adjusting value and the eighth opening degree adjusting value are not consistent, increasing the opening degree of the second outdoor electronic expansion valve according to the eighth opening degree adjusting value.
12. The method of claim 7, further comprising:
and reducing the rotating speed of a second outdoor fan for controlling the heat exchange quantity of the second outdoor heat exchanger according to the difference value between the current outlet pipe temperature and the current inlet pipe temperature of the first indoor heat exchanger.
13. The method according to any one of claims 1-12, further comprising:
in the frequency increasing stage of the compressor, if the difference value between the current indoor temperature and the preset temperature is greater than a first threshold, controlling the frequency of the compressor to be kept unchanged;
and under the condition that the absolute value of the difference value between the current indoor temperature and the preset temperature is smaller than a second threshold, continuously increasing the frequency of the compressor, wherein the second threshold is smaller than the first threshold.
14. The method of claim 13, further comprising:
and in the frequency stabilization stage of the compressor, the opening degrees of a first indoor electronic expansion valve communicated with the first indoor heat exchanger in the evaporation state, a second indoor electronic expansion valve communicated with the second indoor heat exchanger in the reheating state, a first outdoor electronic expansion valve communicated with the first outdoor heat exchanger in the evaporation state and a second outdoor electronic expansion valve communicated with the second outdoor heat exchanger in the condensation state are kept unchanged.
15. The method of claim 14, further comprising:
and in the frequency stabilization stage of the compressor, the rotating speed of a first outdoor fan for controlling the heat exchange quantity of the first outdoor heat exchanger and the rotating speed of a second outdoor fan for controlling the heat exchange quantity of the second outdoor heat exchanger are kept unchanged.
16. The method of claim 14, further comprising:
in the stage of compressor frequency reduction, the opening degrees of the first indoor electronic expansion valve and the second indoor electronic expansion valve are increased;
and reducing the opening degrees of the first outdoor electronic expansion valve and the second outdoor electronic expansion valve.
17. The method of claim 16, further comprising:
in the frequency reduction stage of the compressor, the rotating speed of the first outdoor fan is reduced according to the difference value between the current outlet pipe temperature and the current inlet pipe temperature of the second indoor heat exchanger;
and increasing the rotating speed of the second outdoor fan according to the difference value between the current outlet pipe temperature and the current inlet pipe temperature of the first indoor heat exchanger.
18. An air conditioning control device comprising:
a memory configured to store instructions;
a processor coupled to the memory, the processor configured to perform implementing the method of any of claims 1-17 based on instructions stored by the memory.
19. An air conditioning system comprising: the air conditioning control apparatus of claim 18.
20. A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions which, when executed by a processor, implement the method of any one of claims 1-17.
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060030446A (en) * | 2004-10-05 | 2006-04-10 | 류경륜 | Refrigeration and air conditioning system |
| JP2007064613A (en) * | 2005-08-04 | 2007-03-15 | Denso Corp | Vapor compression refrigeration cycle |
| CN105758075A (en) * | 2016-04-01 | 2016-07-13 | 珠海格力电器股份有限公司 | Sectional type heating and defrosting air-conditioning system and heating and defrosting control method implemented by same |
| CN207299635U (en) * | 2017-09-19 | 2018-05-01 | 广东美的暖通设备有限公司 | For multi-line system outdoor unit and there is its multi-line system |
| CN208205501U (en) * | 2018-04-12 | 2018-12-07 | 珠海格力电器股份有限公司 | The oil return control system of air-conditioning |
| WO2019087406A1 (en) * | 2017-11-06 | 2019-05-09 | ダイキン工業株式会社 | Air conditioning device |
| CN109945389A (en) * | 2019-03-29 | 2019-06-28 | 广东美的制冷设备有限公司 | Control method, device and the air conditioner of air conditioner |
| CN110712498A (en) * | 2019-10-18 | 2020-01-21 | 江铃汽车股份有限公司 | Air conditioner compressor control method and system |
| CN110762886A (en) * | 2018-07-28 | 2020-02-07 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN110822545A (en) * | 2019-11-27 | 2020-02-21 | 广东海悟科技有限公司 | Variable frequency air conditioning system and control method for low frequency operation thereof |
| WO2021004486A1 (en) * | 2019-07-09 | 2021-01-14 | 青岛海尔空调器有限总公司 | Air conditioning device control method and air conditioning device |
| CN112268378A (en) * | 2020-11-18 | 2021-01-26 | 珠海格力电器股份有限公司 | Heat pump system, control method and control device thereof, air conditioning equipment and storage medium |
| WO2021072954A1 (en) * | 2019-10-15 | 2021-04-22 | 广东芬尼克兹节能设备有限公司 | Compressor lubrication adjusting method and device, electronic equipment, and storage medium |
| WO2021103815A1 (en) * | 2019-11-28 | 2021-06-03 | 广东美的制冷设备有限公司 | Air conditioner, air conditioning control method and control device thereof, and readable storage medium |
| CN113531841A (en) * | 2021-06-28 | 2021-10-22 | 苏州英维克温控技术有限公司 | Oil return control method and device for variable frequency air conditioner, electronic equipment and medium |
| CN113669852A (en) * | 2020-04-30 | 2021-11-19 | 广东美的制冷设备有限公司 | Air conditioner, oil return control method of multi-split air conditioning system and storage medium |
| CN113739441A (en) * | 2021-09-18 | 2021-12-03 | 珠海格力电器股份有限公司 | Air conditioning unit and control method thereof |
| CN114279060A (en) * | 2020-09-28 | 2022-04-05 | 广东美的制冷设备有限公司 | Air conditioner and control method and device for electronic expansion valve of indoor unit of air conditioner |
| CN114413498A (en) * | 2022-02-08 | 2022-04-29 | 珠海格力电器股份有限公司 | Air conditioner injection circulation system and control method thereof |
| US20230250982A1 (en) * | 2020-11-18 | 2023-08-10 | Gree Electric Appliances, Inc. Of Zhuhai | Heat Pump System, Control Method and Apparatus Thereof, Air Conditioning Device and Storage Medium |
-
2022
- 2022-11-28 CN CN202211499844.6A patent/CN115930407A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060030446A (en) * | 2004-10-05 | 2006-04-10 | 류경륜 | Refrigeration and air conditioning system |
| JP2007064613A (en) * | 2005-08-04 | 2007-03-15 | Denso Corp | Vapor compression refrigeration cycle |
| CN105758075A (en) * | 2016-04-01 | 2016-07-13 | 珠海格力电器股份有限公司 | Sectional type heating and defrosting air-conditioning system and heating and defrosting control method implemented by same |
| CN207299635U (en) * | 2017-09-19 | 2018-05-01 | 广东美的暖通设备有限公司 | For multi-line system outdoor unit and there is its multi-line system |
| WO2019087406A1 (en) * | 2017-11-06 | 2019-05-09 | ダイキン工業株式会社 | Air conditioning device |
| CN208205501U (en) * | 2018-04-12 | 2018-12-07 | 珠海格力电器股份有限公司 | The oil return control system of air-conditioning |
| CN110762886A (en) * | 2018-07-28 | 2020-02-07 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN109945389A (en) * | 2019-03-29 | 2019-06-28 | 广东美的制冷设备有限公司 | Control method, device and the air conditioner of air conditioner |
| WO2021004486A1 (en) * | 2019-07-09 | 2021-01-14 | 青岛海尔空调器有限总公司 | Air conditioning device control method and air conditioning device |
| WO2021072954A1 (en) * | 2019-10-15 | 2021-04-22 | 广东芬尼克兹节能设备有限公司 | Compressor lubrication adjusting method and device, electronic equipment, and storage medium |
| CN110712498A (en) * | 2019-10-18 | 2020-01-21 | 江铃汽车股份有限公司 | Air conditioner compressor control method and system |
| CN110822545A (en) * | 2019-11-27 | 2020-02-21 | 广东海悟科技有限公司 | Variable frequency air conditioning system and control method for low frequency operation thereof |
| WO2021103815A1 (en) * | 2019-11-28 | 2021-06-03 | 广东美的制冷设备有限公司 | Air conditioner, air conditioning control method and control device thereof, and readable storage medium |
| CN113669852A (en) * | 2020-04-30 | 2021-11-19 | 广东美的制冷设备有限公司 | Air conditioner, oil return control method of multi-split air conditioning system and storage medium |
| CN114279060A (en) * | 2020-09-28 | 2022-04-05 | 广东美的制冷设备有限公司 | Air conditioner and control method and device for electronic expansion valve of indoor unit of air conditioner |
| CN112268378A (en) * | 2020-11-18 | 2021-01-26 | 珠海格力电器股份有限公司 | Heat pump system, control method and control device thereof, air conditioning equipment and storage medium |
| US20230250982A1 (en) * | 2020-11-18 | 2023-08-10 | Gree Electric Appliances, Inc. Of Zhuhai | Heat Pump System, Control Method and Apparatus Thereof, Air Conditioning Device and Storage Medium |
| CN113531841A (en) * | 2021-06-28 | 2021-10-22 | 苏州英维克温控技术有限公司 | Oil return control method and device for variable frequency air conditioner, electronic equipment and medium |
| CN113739441A (en) * | 2021-09-18 | 2021-12-03 | 珠海格力电器股份有限公司 | Air conditioning unit and control method thereof |
| CN114413498A (en) * | 2022-02-08 | 2022-04-29 | 珠海格力电器股份有限公司 | Air conditioner injection circulation system and control method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 王美云: "Research on oil return problem of compressor of multi-connected air-conditioning(heat pump)unit", 制冷与空调, vol. 21, no. 8, 31 May 2021 (2021-05-31), pages 82 - 86 * |
| 陈姣;何振健;冯青龙;林金煌;: "基于低品位热能利用的热泵型房间空调器除霜技术", 制冷与空调, no. 09, pages 22 - 29 * |
| 黄荣填;包能胜;陈锐群;林运龄;: "宽温区节能环保型空调机组电气控制***的设计与实现", 制冷与空调, no. 05, 28 October 2010 (2010-10-28), pages 33 - 38 * |
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