CN117663360A - Method and device for controlling air conditioner, air conditioner and storage medium - Google Patents
Method and device for controlling air conditioner, air conditioner and storage medium Download PDFInfo
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- CN117663360A CN117663360A CN202211032846.4A CN202211032846A CN117663360A CN 117663360 A CN117663360 A CN 117663360A CN 202211032846 A CN202211032846 A CN 202211032846A CN 117663360 A CN117663360 A CN 117663360A
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000003860 storage Methods 0.000 title claims abstract description 21
- 238000010257 thawing Methods 0.000 claims abstract description 253
- 239000003507 refrigerant Substances 0.000 abstract description 22
- 238000010438 heat treatment Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 20
- 238000009826 distribution Methods 0.000 abstract description 18
- 230000001276 controlling effect Effects 0.000 description 31
- 238000010586 diagram Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000004590 computer program Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012546 transfer Methods 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 application relates to the technical field of intelligent household appliances and discloses a method for controlling an air conditioner, wherein the air conditioner comprises a plurality of indoor units and a plurality of outdoor units; the method comprises the following steps: determining the defrosting deviation degree of each outdoor unit according to the defrosting parameters of each outdoor unit; and determining the operating frequency and the opening degree of the electronic expansion valve of each outdoor unit during defrosting according to the defrosting deviation degree of each outdoor unit. According to the method, the operation frequency of the respective compressor and the opening degree of the electronic expansion valve are adjusted according to the defrosting parameters of each outdoor unit, the distribution of the refrigerant of the system in each outdoor unit is changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as much as possible, the defrosting time of the system is shortened, and the influence of defrosting on indoor heating effect is reduced. The application also discloses a device for controlling the air conditioner, the air conditioner and a storage medium.
Description
Technical Field
The present application relates to the technical field of intelligent home appliances, and for example, to a method and an apparatus for controlling an air conditioner, and a storage medium.
Background
At present, when air conditioner in winter is hot, frosting phenomenon can appear in the outdoor heat exchanger, and unit defrosting adopts the mode of heating to change refrigerating generally, and during the refrigeration operation, indoor set stops blowing hot-blast, influences the continuity of heating, and because during defrosting and defrosting in a period of time in the inner room can't provide the heat, leads to indoor temperature to reduce too big, and then influences user's use experience.
The related art discloses a defrosting control method of a multi-split air conditioning system, which comprises the following steps: step S1, detecting whether a multi-split air conditioning system meets a defrosting condition, if so, entering step S2; step S2, detecting the operation states of a plurality of internal machines, wherein the internal machines comprise a first internal machine in an on state and a second internal machine in an off state, and controlling the multi-split air conditioning system to start a defrosting mode; and step S3, controlling the first internal machine and the second internal machine to execute different valve opening degrees respectively according to the detected running state of the internal machines.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
when the outdoor units defrost, the defrosting speed is inconsistent due to uneven distribution of the frosting and the refrigerant, the whole system judges to exit the defrosting according to the longest outdoor unit exit defrosting time, but the longest outdoor unit exit defrosting time is often longer, and the indoor heating effect is affected.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a method and a device for controlling an air conditioner, the air conditioner and a storage medium, so that defrosting time of each outdoor unit tends to be the same, and influence of defrosting on indoor heating effect is reduced.
In some embodiments, the air conditioner includes a plurality of indoor units and a plurality of outdoor units; the method comprises the following steps: determining the defrosting deviation degree of each outdoor unit according to the defrosting parameters of each outdoor unit; and determining the operating frequency and the opening degree of the electronic expansion valve of each outdoor unit during defrosting according to the defrosting deviation degree of each outdoor unit.
In some embodiments, the air conditioner includes a plurality of indoor units and a plurality of outdoor units; the device comprises: a first determining module configured to determine a defrosting deviation degree of each outdoor unit according to a defrosting parameter of each outdoor unit; and a second determining module configured to determine an operating frequency of each outdoor unit at the time of defrosting and an opening degree of the electronic expansion valve according to a defrosting deviation degree of each outdoor unit.
In some embodiments, the apparatus comprises a processor and a memory storing program instructions, the processor being configured to perform the above-described method for controlling an air conditioner when the program instructions are executed.
In some embodiments, the air conditioner includes: a plurality of indoor units; a plurality of outdoor units; and, the above-mentioned device for controlling an air conditioner.
In some embodiments, the storage medium stores program instructions that, when executed, perform the method for controlling an air conditioner described above.
The method and the device for controlling the air conditioner, the air conditioner and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:
according to the defrosting parameters of each outdoor unit, the operation frequency of each compressor and the opening of the electronic expansion valve are regulated, the distribution of the system refrigerant in each outdoor unit is changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is shortened, and the influence of defrosting on indoor heating effect is reduced.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;
FIG. 5 is a schematic view of an apparatus for controlling an air conditioner provided in an embodiment of the present disclosure;
fig. 6 is a schematic view of another apparatus for controlling an air conditioner provided in an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.
The embodiment of the disclosure provides an air conditioner, which comprises a plurality of indoor units and a plurality of outdoor units.
Optionally, the air conditioner further comprises a temperature sensor. And the temperature sensor is arranged at the outlet of the condenser liquid pipe of each outdoor unit and used for detecting the outlet temperature of the condenser liquid pipe of the outdoor unit.
As shown in conjunction with fig. 1, an embodiment of the present disclosure provides a method for controlling an air conditioner, including:
s101, the air conditioner determines the defrosting deviation degree of each outdoor unit according to the defrosting parameters of each outdoor unit.
S102, the air conditioner determines the operating frequency and the opening degree of the electronic expansion valve of each outdoor unit during defrosting according to the defrosting deviation degree of each outdoor unit.
By adopting the method for controlling the air conditioner provided by the embodiment of the disclosure, the operation frequency of the respective compressor and the opening degree of the electronic expansion valve can be adjusted according to the defrosting parameters of each outdoor unit, the distribution of the system refrigerant in each outdoor unit is changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is shortened, and the influence of defrosting on indoor heating effect is reduced.
Optionally, the defrost parameters include: the outlet temperature of the condenser liquid pipe of the outdoor unit. Therefore, the method is beneficial to adjusting the operation frequency of the respective compressor and the opening of the electronic expansion valve according to the outlet temperature of the condenser liquid pipe of the outdoor unit of each outdoor unit, changing the distribution of the system refrigerant in each outdoor unit, enabling the defrosting time of each outdoor unit to be the same, realizing that the whole system can withdraw from defrosting as simultaneously as possible, shortening the defrosting time of the system, and reducing the influence of defrosting on indoor heating effect.
Optionally, before the air conditioner determines the defrosting deviation degree of each outdoor unit according to the defrosting parameter of each outdoor unit, the air conditioner further includes: and detecting defrosting parameters of each outdoor unit. Therefore, the defrosting parameters of the outdoor units are better obtained, the operation frequency of the respective compressor and the opening degree of the electronic expansion valve are better adjusted according to the defrosting parameters of the outdoor units, the distribution of the system refrigerant in the outdoor units is changed, the defrosting time of the outdoor units tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is shortened, and the influence of defrosting on indoor heating effect is reduced.
Optionally, the air conditioner determines a defrosting deviation degree of each outdoor unit according to the defrosting parameter of each outdoor unit, including: and the air conditioner determines the average value, the maximum value and the minimum value of the defrosting parameters of all the outdoor units according to the defrosting parameters of each outdoor unit. The air conditioner determines the defrosting deviation degree of each outdoor unit according to the defrosting parameters, the average value, the maximum value and the minimum value of the defrosting parameters of each outdoor unit. In this way, the defrosting parameter deviation of each outdoor unit is determined according to the defrosting parameters of each outdoor unit and the average value, the maximum value and the minimum value of the defrosting parameters of all outdoor units, then the operation frequency of each compressor and the opening of the electronic expansion valve are adjusted according to the defrosting parameter deviation of each outdoor unit, the distribution of the system refrigerant in each outdoor unit is changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as far as possible, the defrosting time of the system is shortened, and the influence of defrosting on indoor heating effect is reduced.
Optionally, the air conditioner determines a defrosting parameter average value, a defrosting parameter maximum value and a defrosting parameter minimum value of all the outdoor units according to the defrosting parameters of each outdoor unit, including: air conditioner calculating Td avg ＝(∑Td i ) N. Wherein Td is i For the defrost parameter of the ith outdoor unit, td avg For the average value of the defrosting parameters, i is a natural number, i=1, …, N is the number of outdoor units. The air conditioner selects the maximum value of the defrosting parameters of each outdoor unit as the maximum value Td of the defrosting parameters according to the sequence from big to small max Minimum value as defrosting parameter minimum value Td min . Therefore, the average value, the maximum value and the minimum value of the defrosting parameters of all the outdoor units are well determined according to the defrosting parameters of all the outdoor units, the defrosting parameter deviation of all the outdoor units is well determined according to the defrosting parameters of all the outdoor units, the average value, the maximum value and the minimum value of the defrosting parameters of all the outdoor units, and the operation frequency of each compressor and the opening degree of the electronic expansion valve are well adjusted according to the defrosting parameter deviation of each outdoor unit.
Optionally, the air conditioner determines the defrosting bias of each outdoor unit according to the defrosting parameter, the average value, the maximum value and the minimum value of the defrosting parameter of each outdoor unitThe degree of difference, comprising: air conditioner calculation DR i ＝(Td i -Td avg )/(Td max -Td min ). Wherein DR i The degree of defrosting deviation for the i-th outdoor unit. In this way, the defrosting parameter deviation of each outdoor unit is better determined according to the defrosting parameter, the average value, the maximum value and the minimum value of the defrosting parameter of each outdoor unit, and the operation frequency of each compressor and the opening degree of the electronic expansion valve are better adjusted according to the defrosting parameter deviation of each outdoor unit.
Optionally, the air conditioner determines an operation frequency and an electronic expansion valve opening degree of each outdoor unit during defrosting according to a defrosting deviation degree of each outdoor unit, including: the air conditioner determines the operating frequency of each outdoor unit during defrosting according to the defrosting deviation, the set reference frequency, the preset maximum frequency and the preset minimum frequency of each outdoor unit. The air conditioner determines the opening degree of the electronic expansion valve of each outdoor unit according to the defrosting deviation, the preset maximum opening degree and the preset minimum opening degree of each outdoor unit. Specifically f b ＝R 1 *f max 。f min ＝R 2 *f max . Wherein f b To set the reference frequency f max To preset the maximum frequency, f min For a preset minimum frequency, R 1 For a first preset proportion, R 2 Is a second preset ratio. More specifically, R 1 The value of (2) can be 60%, R 2 The value of (2) may be 30%. R is R 1 、R 2 The adjustment setting may be made according to the actual properties of the air conditioner, which is not exemplified herein. Thus, the respective compressor operation frequencies are adjusted according to the defrosting parameter deviation, the set reference frequency, the preset maximum frequency, and the preset minimum frequency of the respective outdoor units. And determining the opening degree of each electronic expansion valve according to the defrosting parameter deviation, the preset maximum opening degree and the preset minimum opening degree of each outdoor unit. The system refrigerant distribution in each outdoor unit is changed better, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as much as possible, the defrosting time of the system is shortened better, and the influence of defrosting on indoor heating effect is reduced.
Optionally, the air conditioner determines an operating frequency of each outdoor unit during defrosting according to a defrosting deviation, a set reference frequency, a preset maximum frequency, and a preset minimum frequency of each outdoor unit, including: air conditioner calculation f i ＝f b -[DR i *(f max -f min )]. Wherein f i The i-th outdoor unit is an operating frequency during defrosting. Thus, at DR i In the case of positive values, td is expressed as i It is relatively high, and thus it is required to reduce the current operating frequency to extend the defrosting time of the outdoor unit, since defrosting can be quickly exited. While at DR i In the case of negative values, td is expressed as i The estimated defrosting time is longer than the average defrosting time, so that the current operating frequency needs to be increased to reduce the defrosting time of the outdoor unit. The method is beneficial to better adjusting the running frequency of each compressor according to the defrosting parameter deviation, the set reference frequency, the preset maximum frequency and the preset minimum frequency of each outdoor unit. Therefore, the distribution of the system refrigerant in each outdoor unit is better changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is better shortened, and the influence of defrosting on indoor heating effect is reduced.
Optionally, the air conditioner determines the opening degree of the electronic expansion valve of each outdoor unit according to the defrosting deviation, the preset maximum opening degree and the preset minimum opening degree of each outdoor unit, including: air conditioner calculation P i ＝P max -[DR i *(P max -P min )]. Wherein P is i An electronic expansion valve opening degree P of the ith outdoor unit max To preset the maximum opening degree, P min Is a preset minimum opening. Specifically, P max The value of (2) may be 470pls and the value of the preset minimum opening may be 32pls. P (P) max 、P min The adjustment setting may be made according to the actual properties of the air conditioner, which is not exemplified herein. Thus, at DR i In the case of positive values, td is expressed as i The outdoor unit can quickly withdraw from defrosting, so that the opening of the current electronic expansion valve is required to be reduced to limit the flow of the refrigerant, thereby prolonging the defrosting time of the outdoor unit. While at DR i In the case of negative values, td is expressed as i The estimated defrosting time is longer than the average defrosting time, so that the opening of the current electronic expansion valve is required to be increased to improve the refrigerant flow rate so as to reduce the defrosting time of the outdoor unit. The electronic expansion valve opening degree is determined according to the defrosting parameter deviation, the preset maximum opening degree and the preset minimum opening degree of each outdoor unit. Therefore, the distribution of the system refrigerant in each outdoor unit is better changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is better shortened, and the influence of defrosting on indoor heating effect is reduced.
Optionally, before the air conditioner determines the electronic expansion valve opening of each outdoor unit according to the defrosting deviation, the preset maximum opening and the preset minimum opening of each outdoor unit, the method further includes: the air conditioner keeps the opening degree of the electronic expansion valve of each outdoor unit as P max The duration of (2) is a first preset duration. Specifically, the value of the first preset duration is 1min. The first preset duration may be adjusted according to an actual attribute of the air conditioner, which is not illustrated herein. Therefore, the expansion valve is fully opened for a period of time, which is favorable for better predicting the defrosting time, and thus, the opening degree of each electronic expansion valve is favorable for being determined according to the defrosting parameter deviation, the maximum opening degree and the minimum opening degree of each outdoor unit. Therefore, the distribution of the system refrigerant in each outdoor unit is better changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is better shortened, and the influence of defrosting on indoor heating effect is reduced.
As shown in connection with fig. 2, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:
s201, the air conditioner determines the defrosting deviation degree of each outdoor unit according to the defrosting parameters of each outdoor unit.
S202, the air conditioner determines the operating frequency of each outdoor unit in defrosting according to the defrosting deviation degree of each outdoor unit.
S203, the air conditioner determines the opening degree of the electronic expansion valve of each outdoor unit according to the defrosting parameters of each outdoor unit.
By adopting the method for controlling the air conditioner provided by the embodiment of the disclosure, the operation frequency of the respective compressor and the opening degree of the electronic expansion valve can be adjusted according to the defrosting parameters of each outdoor unit, the distribution of the system refrigerant in each outdoor unit is changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is shortened, and the influence of defrosting on indoor heating effect is reduced.
Optionally, the air conditioner determines the opening degree of the electronic expansion valve of each outdoor unit according to the defrosting parameters of each outdoor unit, including: the air conditioner keeps the opening degree of the electronic expansion valve of each outdoor unit as P max The duration of (2) is a first preset duration. The air conditioner determines the parameter deviation of the defrosting parameters of each outdoor unit and the average value of the defrosting parameters according to the defrosting parameters of each outdoor unit and the average value of the defrosting parameters. And the air conditioner determines the opening degree of the electronic expansion valve of each outdoor unit according to the parameter deviation of the defrosting parameters of each outdoor unit and the average value of the defrosting parameters. In this way, the opening degree of each electronic expansion valve is determined according to the parameter deviation between the defrosting parameters of each outdoor unit and the average value of the defrosting parameters. Therefore, the distribution of the system refrigerant in each outdoor unit is better changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is better shortened, and the influence of defrosting on indoor heating effect is reduced.
Optionally, the air conditioner determines a parameter deviation between the defrosting parameter of each outdoor unit and the average value of the defrosting parameters according to the defrosting parameter of each outdoor unit and the average value of the defrosting parameters, including: delta Td i ＝Td i -Td avg . Wherein DeltaTd is i The parameter deviation of the defrosting parameter of the ith outdoor unit from the average value of the defrosting parameters. Therefore, the parameter deviation of the defrosting parameters of the outdoor units and the average value of the defrosting parameters can be well determined, and the opening degree of the electronic expansion valve can be well determined according to the defrosting parameters of the outdoor units and the average value of the defrosting parameters. Further, the distribution of the system refrigerant in each outdoor unit is better changed, the defrosting time of each outdoor unit tends to be the same, and the whole is realizedThe system can withdraw from defrosting as simultaneously as possible, so that the defrosting time of the system is shortened better, and the influence of defrosting on indoor heating effect is reduced.
Optionally, the air conditioner determines the opening of the electronic expansion valve of each outdoor unit according to the parameter deviation between the defrosting parameter of each outdoor unit and the average value of the defrosting parameters, including: at DeltaTd i ＞△T 1 In the case of (1), the air conditioner determines P i Reduced by ΔP from the current value 1 Or reducing R of the current value 3 . At DeltaT 2 ≤△Td i ≤△T 1 In the case of (1), the air conditioner determines P i Reduced by ΔP from the current value 2 Or reducing R of the current value 4 . At DeltaT 3 ＜△Td i ＜△T 2 In the case of (1), the air conditioner determines P i Reduced by ΔP from the current value 3 Or reducing R of the current value 5 . At DeltaT 4 ≤△Td i ≤△T 3 In the case of (1), the air conditioner determines P i Delta P is increased from the current value 4 Or increasing R of the current value 6 . At DeltaT 5 ≤△Td i ＜△T 4 In the case of (1), the air conditioner determines P i Delta P is increased from the current value 5 Or increasing R of the current value 7 . At DeltaTd i ＜△T 5 In the case of (1), the air conditioner determines P i Delta P is increased from the current value 6 Or increasing R of the current value 8 . Wherein DeltaT 1 For the first preset defrost parameter bias, deltaT 2 For the second preset defrosting parameter deviation, deltaT 3 For the third preset defrost parameter deviation, deltaT 4 For the fourth preset defrost parameter bias, deltaT 5 For the fifth preset defrost parameter deviation, deltaT 1 ＞△T 2 ＞△T 3 ＞△T 4 ＞△T 5 。△P 1 For the first preset opening deviation, deltaP 2 For the second preset opening deviation, deltaP 3 For the third preset opening deviation, deltaP 4 For the fourth preset opening deviation, deltaP 5 For the fifth preset opening deviation, deltaP 6 For a sixth preset opening deviation, ΔP 1 ＞△P 2 ＞△P 3 ，△P 6 ＞△P 5 ＞△P 4 。R 3 For a third preset ratio, R 4 For a fourth preset ratio, R 5 For a fifth preset ratio, R 6 For a sixth preset ratio, R 7 For a seventh preset ratio, R 8 For the eighth preset proportion, R 3 ＞R 4 ＞R 5 ，R 8 ＞R 7 ＞R 6 . Specifically, deltaT 1 The value of (C) can be 5℃ or delta T 2 The value of (C) can be 3℃ or delta T 3 The value of (C) can be 0 ℃ and delta T 4 The value of (C) can be-2 ℃ and delta T 5 The value of (2) may be-4 ℃. DeltaP 1 The value of (a) can be 80pls, delta P 2 The value of (a) can be 50pls, deltaP 3 The value of (a) can be 20pls, deltaP 4 The value of (a) can be 15pls, deltaP 5 The value of (a) can be 40pls, delta P 6 The value of (2) may be 60pls. R is R 3 Can be 20%, R 4 The value of (2) can be 10%, R 5 The value of (2) may be 5%, R 6 The value of (2) may be 5%, R 7 The value of (2) can be 10%, R 8 The value of (2) may be 15%. DeltaT 1 、△T 2 、△T 3 、△T 4 、△T 5 、△P 1 、△P 2 、△P 3 、△P 4 、△P 5 、△P 6 、R 3 、R 4 、R 5 、R 6 、R 7 、R 8 The adjustment setting may be made according to the actual properties of the air conditioner, which is not exemplified herein. Thus, at DeltaTd i The larger the case, the Td i The higher the ratio is, the faster the defrosting can be withdrawn, so the opening degree of the current electronic expansion valve needs to be reduced to limit the refrigerant flow more greatly, and the defrosting time of the outdoor unit needs to be prolonged more greatly. And at DeltaTd i The smaller the case, the Td i The lower the comparison, the longer the estimated defrosting time is than the average defrosting time, so the opening degree of the current electronic expansion valve needs to be increased more greatly to increase the refrigerant flow more greatly, so as to reduce the defrosting time of the outdoor unit more greatly. Is favorable for defrosting parameters of all outdoor units according to the defrosting parameters of all outdoor unitsThe difference in the average of the numbers determines the respective electronic expansion valve opening. Therefore, the distribution of the system refrigerant in each outdoor unit is better changed, the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is better shortened, and the influence of defrosting on indoor heating effect is reduced.
As shown in connection with fig. 3, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:
s301, the air conditioner determines the defrosting deviation degree of each outdoor unit according to the defrosting parameters of each outdoor unit.
S302, the air conditioner determines the operating frequency of each outdoor unit in defrosting according to the defrosting deviation degree of each outdoor unit every second preset time period, and determines the opening degree of the electronic expansion valve of each outdoor unit according to the defrosting deviation degree of each outdoor unit every third preset time period.
By adopting the method for controlling the air conditioner provided by the embodiment of the disclosure, the operation frequency of each compressor can be adjusted according to the defrosting parameters of each outdoor unit at intervals of a second preset time. And adjusting the opening of each electronic expansion valve according to the defrosting parameters of each outdoor unit every third preset time period. The distribution of the system refrigerant in each outdoor unit is changed, so that the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is shortened, and the influence of defrosting on indoor heating effect is reduced.
Alternatively, the value of the second preset time period may be 20s. The third preset time period may take a value of 30s. The second preset duration and the third preset duration can be adjusted and set according to the actual attribute of the air conditioner, which is not exemplified herein. Therefore, the value of the second preset time length and the value of the third preset time length are limited, so that the operation frequency of each compressor can be adjusted according to the defrosting parameters of each outdoor unit at intervals of the second preset time length. And preferably, the opening degree of each electronic expansion valve is adjusted according to the defrosting parameters of each outdoor unit every third preset time period.
As shown in connection with fig. 4, an embodiment of the present disclosure provides another method for controlling an air conditioner, including:
s401, the air conditioner determines the defrosting deviation degree of each outdoor unit according to the defrosting parameters of each outdoor unit.
S402, the air conditioner determines the operating frequency of each outdoor unit in defrosting according to the defrosting deviation degree of each outdoor unit every second preset time period.
S403, the air conditioner determines the opening degree of the electronic expansion valve of each outdoor unit according to the defrosting parameters of each outdoor unit every third preset time period.
By adopting the method for controlling the air conditioner provided by the embodiment of the disclosure, the operation frequency of each compressor can be adjusted according to the defrosting parameters of each outdoor unit at intervals of a second preset time. And adjusting the opening of each electronic expansion valve according to the defrosting parameters of each outdoor unit every third preset time period. The distribution of the system refrigerant in each outdoor unit is changed, so that the defrosting time of each outdoor unit tends to be the same, the whole system can withdraw from defrosting as simultaneously as possible, the defrosting time of the system is shortened, and the influence of defrosting on indoor heating effect is reduced.
As shown in conjunction with fig. 5, an embodiment of the present disclosure provides an apparatus for controlling an air conditioner, including a first determining module 501 and a second determining module 502. The first determining module 501 is configured to determine a defrosting deviation degree of each outdoor unit according to a defrosting parameter of each outdoor unit. The second determining module 502 is configured to determine an operation frequency and an electronic expansion valve opening degree of each outdoor unit at the time of defrosting according to a defrosting deviation degree of each outdoor unit.
The device for controlling the air conditioner is beneficial to adjusting the operation frequency of the respective compressor and the opening degree of the electronic expansion valve according to the defrosting parameters of each outdoor unit, changing the distribution of the system refrigerant in each outdoor unit, enabling the defrosting time of each outdoor unit to be the same, enabling the whole system to withdraw from defrosting as simultaneously as possible, shortening the defrosting time of the system, and reducing the influence of defrosting on indoor heating effect.
As shown in connection with fig. 6, an embodiment of the present disclosure provides an apparatus for controlling an air conditioner, including a processor (processor) 600 and a memory (memory) 601. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 602 and a bus 603. The processor 600, the communication interface 602, and the memory 601 may communicate with each other via the bus 603. The communication interface 602 may be used for information transfer. The processor 600 may call logic instructions in the memory 601 to perform the method for controlling an air conditioner of the above-described embodiment.
Further, the logic instructions in the memory 601 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 601 serves as a computer readable storage medium, and may be used to store a software program, a computer executable program, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 600 performs functional applications and data processing by executing program instructions/modules stored in the memory 601, i.e., implements the method for controlling an air conditioner in the above-described embodiments.
The memory 601 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the terminal device, etc. In addition, the memory 601 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, comprising: a plurality of indoor units, a plurality of outdoor units, and the above-mentioned device for controlling an air conditioner.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for controlling an air conditioner.
The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for controlling an air conditioner, wherein the air conditioner includes a plurality of indoor units and a plurality of outdoor units; the method comprises the following steps:
determining the defrosting deviation degree of each outdoor unit according to the defrosting parameters of each outdoor unit;
and determining the operating frequency and the opening degree of the electronic expansion valve of each outdoor unit during defrosting according to the defrosting deviation degree of each outdoor unit.
2. The method of claim 1, wherein the determining the degree of defrost bias of each outdoor unit according to the defrost parameter of each outdoor unit comprises:
determining a defrosting parameter average value, a defrosting parameter maximum value and a defrosting parameter minimum value of all the outdoor units according to the defrosting parameters of each outdoor unit;
and determining the defrosting deviation degree of each outdoor unit according to the defrosting parameters, the average value, the maximum value and the minimum value of the defrosting parameters of each outdoor unit.
3. The method of claim 2, wherein the determining the degree of deviation of the defrosting of each outdoor unit according to the defrosting parameter, the average value of the defrosting parameter, the maximum value of the defrosting parameter, and the minimum value of the defrosting parameter of each outdoor unit comprises:
DR i ＝(Td i -Td avg )/(Td max -Td min )；
wherein Td is i For the defrost parameter of the ith outdoor unit, td avg For defrosting parameter average value, td max For maximum defrost parameter, td min To minimum of defrosting parameters, DR i The i-th outdoor unit has a defrosting deviation degree, i is a natural number, i=1, …, N is the number of outdoor units.
4. A method according to any one of claims 1 to 3, wherein the determining the operating frequency and the electronic expansion valve opening degree of each outdoor unit at the time of defrosting according to the defrosting deviation degree of each outdoor unit comprises:
determining the operating frequency of each outdoor unit during defrosting according to the defrosting deviation, the set reference frequency, the preset maximum frequency and the preset minimum frequency of each outdoor unit;
and determining the opening degree of the electronic expansion valve of each outdoor unit according to the defrosting deviation, the preset maximum opening degree and the preset minimum opening degree of each outdoor unit.
5. The method of claim 4, wherein the determining the operating frequency of each outdoor unit during defrosting according to the defrosting deviation of each outdoor unit, the set reference frequency, the preset maximum frequency, and the preset minimum frequency comprises:
f i ＝f b -[DR i *(f max -f min )]；
wherein DR i For the degree of defrosting deviation of the ith outdoor unit, f i Is the operating frequency f of the ith outdoor unit during defrosting b To set the reference frequency f max To preset the maximum frequency, f min For the preset minimum frequency, i is a natural number, i=1, …, N is the number of outdoor units.
6. The method of claim 4, wherein the determining the electronic expansion valve opening degree of each outdoor unit according to the defrosting deviation, the preset maximum opening degree, and the preset minimum opening degree of each outdoor unit comprises:
P i ＝P max -[DR i *(P max -P min )]；
wherein DR i For the defrosting deviation degree of the ith outdoor unit, P i An electronic expansion valve opening degree P of the ith outdoor unit max To preset the maximum opening degree, P min For the preset minimum opening degree, i is a natural number, i=1, …, N is the number of outdoor units.
7. An apparatus for controlling an air conditioner, wherein the air conditioner includes a plurality of indoor units and a plurality of outdoor units; the device comprises:
a first determining module configured to determine a defrosting deviation degree of each outdoor unit according to a defrosting parameter of each outdoor unit;
and a second determining module configured to determine an operating frequency of each outdoor unit at the time of defrosting and an opening degree of the electronic expansion valve according to a defrosting deviation degree of each outdoor unit.
8. An apparatus for controlling an air conditioner comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for controlling an air conditioner according to any one of claims 1 to 6 when the program instructions are executed.
9. An air conditioner, comprising:
a plurality of indoor units;
a plurality of outdoor units;
and, the apparatus for controlling an air conditioner according to claim 7 or 8.
10. A storage medium storing program instructions which, when executed, perform the method for controlling an air conditioner according to any one of claims 1 to 6.
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| CN202211032846.4A CN117663360A (en) | 2022-08-26 | 2022-08-26 | Method and device for controlling air conditioner, air conditioner and storage medium |
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| CN202211032846.4A CN117663360A (en) | 2022-08-26 | 2022-08-26 | Method and device for controlling air conditioner, air conditioner and storage medium |
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