CN113251590A - Control method and device of air conditioner, air conditioner and computer readable storage medium - Google Patents
Control method and device of air conditioner, air conditioner and computer readable storage medium Download PDFInfo
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- CN113251590A CN113251590A CN202110521808.4A CN202110521808A CN113251590A CN 113251590 A CN113251590 A CN 113251590A CN 202110521808 A CN202110521808 A CN 202110521808A CN 113251590 A CN113251590 A CN 113251590A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005057 refrigeration Methods 0.000 claims abstract description 20
- 230000001276 controlling effect Effects 0.000 description 43
- OIGNJSKKLXVSLS-VWUMJDOOSA-N prednisolone Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OIGNJSKKLXVSLS-VWUMJDOOSA-N 0.000 description 8
- 238000005457 optimization Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method and a control device of an air conditioner, the air conditioner and a computer readable storage medium, wherein the method comprises the following steps: judging whether the air conditioner meets the optimized control condition; if so, controlling the air conditioner to enter an optimal control mode when the air conditioner is started, wherein in the optimal control mode, the compressor is controlled to carry out variable frequency operation on the basis of the rated minimum frequency of the compressor; if not, controlling the air conditioner to enter a conventional control mode when the air conditioner is started. According to the invention, when the air conditioner is determined to meet the optimized control condition and the air conditioner is started, the air conditioner is controlled to enter the optimized control mode, in the mode, the compressor is controlled to perform variable frequency operation on the basis of the rated minimum frequency of the compressor, and the shutdown frequency of the compressor is reduced by increasing the stable operation time of the refrigeration mode, so that the operation stability of the air conditioner is improved, the comfort feeling of a user is improved, and meanwhile, the electric quantity can be effectively saved.
Description
Technical Field
The present invention relates to the field of air conditioner technologies, and in particular, to an air conditioner, an air conditioner control method and apparatus, and a computer-readable storage medium.
Background
At present, the air conditioner is at the refrigeration in-process, usually because the user sets for the temperature generally higher, after the air conditioner starts, indoor temperature can reach the settlement temperature very fast, therefore, the condition that reaches warm shut down can appear in the air conditioner, the air conditioner stops down after a period, indoor temperature rises gradually, at this moment, the air conditioner needs restart again, and when the air conditioner starts again, the operating frequency is higher, make indoor temperature very fast just can reach the settlement temperature, the shut down condition can appear again in the air conditioner, so relapse, lead to the frequent shut down of air conditioner, unable steady operation, and frequent shut down makes air conditioner electric quantity consumption great, indoor temperature is unstable, thereby, reduce user's comfort level and experience.
In order to avoid frequent shutdown of the air conditioner, in a related technology, a compressor frequency reduction processing mode is adopted before the indoor temperature reaches a set temperature, however, due to the adoption of the mode, the frequency reduction is not timely, the shutdown of the air conditioner still occurs, and the stable operation cannot be realized.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, an object of the present invention is to provide a method for controlling an air conditioner, which, when it is determined that the air conditioner satisfies an optimal control condition and the air conditioner is started, controls the air conditioner to enter an optimal control mode, and in this mode, controls a compressor to perform variable frequency operation based on a rated minimum frequency of the compressor, so as to increase a stable operation time of a refrigeration mode, thereby reducing the number of times of shutdown of the compressor, improving the stability of operation of the air conditioner, improving a user's comfort feeling, and simultaneously, effectively saving electric power.
Therefore, a second object of the present invention is to provide a control device for an air conditioner.
To this end, a third object of the present invention is to provide an air conditioner.
To this end, a fourth object of the invention is to propose a computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention proposes a control method of an air conditioner, the method including: judging whether the air conditioner meets an optimized control condition, wherein the optimized control condition comprises the following steps: the compressor is stopped, the indoor environment temperature is equal to the set temperature of the air conditioner, the indoor fan is in a normal state, and the air conditioner is in a refrigeration mode; if so, controlling the air conditioner to enter an optimized control mode when the air conditioner is started, wherein in the optimized control mode, the compressor is controlled to carry out variable frequency operation on the basis of the rated minimum frequency of the compressor; if not, when the air conditioner is started, the air conditioner is controlled to enter a conventional control mode, wherein in the conventional control mode, the compressor runs at a first preset frequency constant frequency, and the first preset frequency is larger than the rated minimum frequency.
According to the control method of the air conditioner, the air conditioner is determined to meet the optimized control condition, the air conditioner is controlled to enter the optimized control mode when the air conditioner is started, and the compressor is controlled to perform variable frequency operation on the basis of the rated minimum frequency of the compressor under the optimized control mode, so that the stable operation time of the refrigeration mode is increased, the situation that the air conditioner is frequently stopped at a temperature due to the fact that the compressor operates at a higher frequency when the air conditioner is restarted is avoided, the indoor environment temperature quickly reaches the set temperature of the air conditioner, and accordingly the shutdown frequency of the compressor is reduced, the operation stability of the air conditioner is improved, the comfort feeling of a user is improved, and meanwhile the electric quantity can be effectively saved.
In some embodiments, the controlling the compressor to perform the inverter operation based on the rated minimum frequency of the compressor includes: after controlling the air conditioner to run at the rated minimum frequency for a first preset time, determining the difference between the indoor environment temperature and the set temperature; and controlling the compressor to perform variable frequency operation according to the difference value.
In some embodiments, the controlling the compressor to perform the inverter operation according to the difference value includes: if the difference value is smaller than or equal to a first preset threshold value, controlling the compressor to continuously run at the rated minimum frequency; if the difference value is greater than the first preset threshold value and less than or equal to a second preset threshold value, controlling the compressor to operate at a second preset frequency, wherein the second preset frequency is greater than the rated minimum frequency; if the difference value is greater than the second preset threshold value and less than or equal to a third preset threshold value, controlling the compressor to operate at a third preset frequency, wherein the third preset frequency is greater than the second preset frequency; and if the difference value is greater than a third preset threshold value, controlling the air conditioner to enter the conventional control mode, wherein the third preset frequency is less than the first preset frequency.
In some embodiments, the second preset frequency is the sum of the nominal minimum frequency and a unit regulation frequency of the compressor, and the third preset frequency is the sum of the second preset frequency and the unit regulation frequency of the compressor.
In some embodiments, the determining whether the air conditioner satisfies an optimal control condition includes: and periodically judging whether the air conditioner meets the optimized control condition or not by taking preset time as a period.
To achieve the above object, an embodiment of a second aspect of the present invention proposes a control device of an air conditioner, the device including: the air conditioner comprises a judging module and a control module, wherein the judging module is used for judging whether the air conditioner meets an optimized control condition, and the optimized control condition comprises the following steps: the compressor is stopped, the indoor environment temperature is equal to the set temperature of the air conditioner, the indoor fan is in a normal state, and the air conditioner is in a refrigeration mode; the control module is used for controlling the air conditioner to enter an optimal control mode when the air conditioner meets an optimal control condition and the air conditioner is started, wherein the compressor is controlled to perform variable frequency operation under the optimal control mode on the basis of the rated minimum frequency of the compressor; and when the air conditioner does not meet the optimized control condition and the air conditioner is started, controlling the air conditioner to enter a conventional control mode, wherein in the conventional control mode, the compressor runs at a first preset frequency constant frequency, wherein the first preset frequency is greater than the rated minimum frequency.
According to the control device of the air conditioner, the air conditioner is determined to meet the optimized control condition, the air conditioner is controlled to enter the optimized control mode when the air conditioner is started, and the compressor is controlled to perform variable frequency operation on the basis of the rated minimum frequency of the compressor under the optimized control mode, so that the stable operation time of the refrigeration mode is increased, the situation that the air conditioner is frequently stopped at a temperature due to the fact that the compressor operates at a higher frequency when the air conditioner is restarted is avoided, the indoor environment temperature quickly reaches the set temperature of the air conditioner, and accordingly the shutdown frequency of the compressor is reduced, the operation stability of the air conditioner is improved, the comfort feeling of a user is improved, and meanwhile the electric quantity can be effectively saved.
In some embodiments, the control module is specifically configured to: after controlling the air conditioner to run at the rated minimum frequency for a first preset time, determining the difference between the indoor environment temperature and the set temperature; and controlling the compressor to perform variable frequency operation according to the difference value.
In some embodiments, the determining module is specifically configured to: and periodically judging whether the air conditioner meets the optimized control condition or not by taking preset time as a period.
To achieve the above object, an embodiment of a third aspect of the present invention proposes an air conditioner including: the control device of the air conditioner described in the above embodiment; or comprises the following steps: the air conditioner control system comprises a processor, a memory and a control program of the air conditioner, wherein the control program of the air conditioner is stored on the memory and can run on the processor, and the control program of the air conditioner realizes the control method of the air conditioner in the embodiment when being executed by the processor.
According to the air conditioner provided by the embodiment of the invention, the air conditioner is determined to meet the optimal control condition, the air conditioner is controlled to enter the optimal control mode when the air conditioner is started, and the compressor is controlled to perform variable frequency operation on the basis of the rated minimum frequency of the compressor under the optimal control mode, so that the stable operation time of the refrigeration mode is increased, the situation that the air conditioner frequently achieves warm shutdown due to the fact that the indoor environment temperature rapidly reaches the set temperature of the air conditioner when the air conditioner is restarted is avoided, the shutdown frequency of the compressor is reduced, the running stability of the air conditioner is improved, the user comfort is improved, and meanwhile, the electric quantity can be effectively saved.
To achieve the above object, an embodiment of a fourth aspect of the present invention proposes a computer-readable storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, implements the control method of the air conditioner described in the above embodiment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a block diagram of a control apparatus of an air conditioner according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
A method for controlling an air conditioner according to an embodiment of the present invention will be described below.
A control method of an air conditioner according to an embodiment of the present invention is described below with reference to fig. 1, and as shown in fig. 1, the control method of an air conditioner of an embodiment of the present invention includes at least step S1, step S2, and step S3.
Step S1, determining whether the air conditioner satisfies an optimal control condition, wherein the optimal control condition includes: the compressor is stopped, the indoor environment temperature is equal to the set temperature of the air conditioner, the indoor fan is in a normal state, and the air conditioner is in a refrigeration mode.
In an embodiment, it is determined whether the air conditioner satisfies the optimal control condition, that is, whether the compressor is stopped, whether the indoor ambient temperature is the same as the set temperature of the air conditioner, whether the indoor fan is in a normal state, and whether the air conditioner is in a cooling mode. And if the judgment simultaneously meets the condition that the compressor is stopped, the indoor environment temperature is equal to the set temperature of the air conditioner, the indoor fan is in a normal state, and the air conditioner is in a refrigeration mode, determining that the air conditioner meets the optimized control condition.
It will be appreciated that the compressor shutdown may be caused by a number of different conditions, for example, a compressor failure may cause the compressor to shutdown, or a warm shutdown may be caused after the indoor ambient temperature reaches the set temperature, and in the event that the failure causes the shutdown, the indoor ambient temperature may not reach the set temperature, i.e., the indoor ambient temperature is not equal to the set temperature. Thus, after determining that the compressor is stopped, it is determined whether the stop thereof is due to a compressor malfunction or due to the indoor ambient temperature reaching the set temperature, and a warm stop occurs. Therefore, after the compressor is stopped, whether the indoor environment temperature is equal to the set temperature of the air conditioner or not is detected, if the indoor environment temperature is equal to the set temperature, the air conditioner is determined to be in the temperature-reaching stop state, and if the indoor environment temperature is not equal to the set temperature, the air conditioner is determined not to be in the temperature-reaching stop state, and at the moment, the compressor may be stopped due to the fault or other conditions; detecting the running state of the indoor fan, and judging whether the indoor fan is in a normal state; and meanwhile, detecting the running mode of the air conditioner and judging whether the air conditioner is in a refrigeration mode. When the conditions are met, namely the compressor is stopped, the indoor environment temperature is equal to the set temperature, the indoor fan is in a normal state, and the air conditioner is in a refrigeration mode, the air conditioner is considered to meet the conditions of optimized control, and if one or more of the conditions are not met, the air conditioner is considered not to meet the conditions of optimized control.
And step S2, if the air conditioner meets the optimization control condition, controlling the air conditioner to enter an optimization control mode when the air conditioner is started, wherein in the optimization control mode, the compressor is controlled to carry out variable frequency operation on the basis of the rated minimum frequency of the compressor.
In an embodiment, when the state of the air conditioner meets the above conditions at the same time, it is determined that the air conditioner meets the optimal control conditions, and when the air conditioner is started, the air conditioner is controlled to enter an optimal control mode, and after the air conditioner enters the optimal control mode, the operating frequency of the compressor is adjusted.
For example, after the air conditioner enters the optimized control mode, the indoor environment temperature gradually rises along with the increase of the shutdown time of the air conditioner, when the indoor environment temperature rises to be unequal to the set temperature, the air conditioner needs to be controlled to restart so as to reduce the indoor environment temperature, when the air conditioner restarts, the compressor firstly runs for a period of time at the rated minimum frequency, when the running time meets the set duration, the running frequency of the compressor is gradually changed on the basis of the rated minimum frequency so as to control the compressor to carry out variable frequency running, thereby avoiding the problem that the compressor stops frequently because the indoor environment temperature quickly reaches the set temperature of the air conditioner because the compressor runs at a higher frequency when the air conditioner restarts, or the air conditioner adopts frequency reduction treatment so as to cause the problem that the compressor stops because the frequency reduction is not timely, thereby reducing the shutdown times of the compressor, so that the air conditioner can be stably operated. And the problems of electric quantity waste and unstable indoor temperature caused by frequent starting and stopping of the compressor are avoided, so that the electric quantity is saved, and the comfort level of a user is improved.
And step S3, if not, controlling the air conditioner to enter a normal control mode when the air conditioner is started, wherein in the normal control mode, the compressor runs at a first preset frequency constant frequency, and the first preset frequency is greater than a rated minimum frequency.
In an embodiment, the state of the air conditioner does not satisfy one or more of the above-mentioned optimal control conditions, for example, the air conditioner is in a heating mode and the indoor fan is not in a normal state, or the air conditioner is in a heating mode, or the indoor fan is not in a normal state, or the indoor ambient temperature is not equal to the set temperature, the air conditioner is considered not to satisfy the optimal control conditions, and when the air conditioner is started, the air conditioner is controlled to enter a normal control mode. In the normal control mode, the compressor is operated at a first preset frequency constant frequency. For example, when the indoor environment temperature is judged not to be equal to the set temperature, the air conditioner is not considered to be in the temperature-reaching shutdown state, at the moment, the air conditioner does not meet the optimized control condition, and the compressor is controlled to operate at a first preset frequency constant frequency which is greater than the rated minimum frequency.
According to the control method of the air conditioner, the air conditioner is determined to meet the optimized control condition, the air conditioner is controlled to enter the optimized control mode when the air conditioner is started, and the compressor is controlled to perform variable frequency operation on the basis of the rated minimum frequency of the compressor under the optimized control mode, so that the stable operation time of the refrigeration mode is increased, the situation that the air conditioner is frequently stopped at a temperature due to the fact that the compressor operates at a higher frequency when the air conditioner is restarted is avoided, the indoor environment temperature quickly reaches the set temperature of the air conditioner, and accordingly the shutdown frequency of the compressor is reduced, the operation stability of the air conditioner is improved, the comfort feeling of a user is improved, and meanwhile the electric quantity can be effectively saved.
In some embodiments, controlling the compressor to perform the inverter operation based on a rated minimum frequency of the compressor includes: controlling the air conditioner to run at a rated minimum frequency for a first preset time, and then determining the difference value between the indoor environment temperature and the set temperature; and controlling the compressor to perform variable frequency operation according to the difference value.
In a particular embodiment, the nominal minimum frequency is, for example, denoted as F. After the air conditioner is controlled to enter the optimization control mode, the air conditioner is firstly controlled to run at the rated minimum frequency F for a first preset time, for example, 5min-10 min. Specifically, when the air conditioner runs at the rated minimum frequency F, whether the running time of the air conditioner reaches a first preset time needs to be judged, if the running time does not reach the first preset time, the air conditioner is controlled to continue running at the rated minimum frequency F, and the problem that a compressor is stopped due to untimely frequency reduction when the air conditioner is started is solved; if the air conditioner runs at the rated minimum frequency F for the first preset time, the difference value between the indoor environment temperature and the set temperature is further determined, for example, recorded as delta t, and the running frequency of the compressor is adjusted according to the difference value delta t, so that the compressor is controlled to run in a variable frequency mode on the basis of the rated minimum frequency F of the compressor, the indoor environment temperature is guaranteed to be stable, and the shutdown frequency is reduced.
In some embodiments, controlling the compressor to perform the variable frequency operation according to the difference comprises: if the difference value is less than or equal to a first preset threshold value, controlling the compressor to continuously run at the rated minimum frequency; if the difference value is greater than the first preset threshold value and less than or equal to a second preset threshold value, controlling the compressor to run at a second preset frequency, wherein the second preset frequency is greater than a rated minimum frequency; if the difference value is greater than the second preset threshold value and less than or equal to a third preset threshold value, controlling the compressor to run at a third preset frequency, wherein the third preset frequency is greater than the second preset frequency; and if the difference value is greater than a third preset threshold value, controlling the air conditioner to enter a conventional control mode, wherein the third preset frequency is less than the first preset frequency.
It can be understood that, when the compressor is controlled to perform variable frequency operation according to the difference value Δ t between the indoor environment temperature and the set temperature, the relation between the difference value Δ t and different preset threshold values needs to be compared, and when the difference value Δ t is within different preset threshold value ranges, the compressor is controlled to operate at a corresponding frequency, namely, the frequency of the compressor is adjusted according to the difference value Δ t, so that variable frequency operation is realized, the indoor environment temperature can be ensured to be in a stable state, and the problem of frequent shutdown can not occur. Specifically, when the difference Δ t is less than or equal to a first preset threshold, for example, Δ t is less than or equal to 1 ℃, it is determined that the difference between the indoor environment temperature and the set temperature is small, and at this time, the compressor is controlled to continue to operate at a smaller operation frequency, that is, a rated minimum frequency F, so that the indoor environment temperature changes smoothly; when the difference value delta t is greater than a first preset threshold value and less than or equal to a second preset threshold value, for example, when the temperature is more than 1 ℃ and less than delta t and less than or equal to 2 ℃, controlling the compressor to operate at an operating frequency slightly greater than the rated minimum frequency F, namely, a second preset frequency, for example, operating at F + delta F; and when the difference value delta t is greater than the second preset threshold value and less than or equal to a third preset threshold value, for example, when the temperature is more than 2 ℃ and less than or equal to delta t and less than or equal to 3 ℃, controlling the compressor to operate at an operating frequency slightly greater than the second preset frequency, namely, the third preset frequency, for example, at F +2 delta F. Therefore, the running frequency of the compressor is correspondingly adjusted by determining the relation between the difference value delta t and different preset threshold values, so that the indoor environment temperature is stable, and the problem of shutdown is reduced.
When the difference value Δ t is greater than the third preset threshold value, for example, Δ t > 3 ℃, it is considered that the temperature difference between the indoor environment temperature and the set temperature is large, at this time, if the compressor is controlled based on the rated minimum frequency F, the compressor is controlled to perform variable frequency operation, and the indoor environment temperature may not be rapidly reduced to the set temperature, so that the air conditioner needs to be controlled to enter a conventional control mode, thereby the air conditioner is operated at a high frequency, namely, at a constant frequency of the first preset frequency, thereby the indoor environment temperature can be rapidly reduced to the set temperature in a short time, thereby rapidly regulating and controlling the indoor environment temperature, and thereby the indoor environment temperature is ensured to rapidly meet the user requirements.
In a specific embodiment, when the compressor is controlled to operate at different preset frequencies, the single operation time can be set to 90s, so that the problem of inaccurate control caused by fluctuation of the indoor environment temperature can be avoided.
In some embodiments, the second predetermined frequency is the sum of the nominal minimum frequency and the unit modulation frequency of the compressor, and the third predetermined frequency is the sum of the second predetermined frequency and the unit modulation frequency of the compressor. It will be understood that the second preset frequency and the third preset frequency are obtained by performing an adjustment increase in the unit adjustment frequency of the compressor on the basis of the nominal minimum frequency, for example, the second preset frequency is the sum of the nominal minimum frequency and the unit adjustment frequency of the compressor, i.e., the second preset frequency is F + Δ F; the third preset frequency is the sum of the second preset frequency and the unit adjustment frequency of the compressor, that is, the third preset frequency is F +2 Δ F. By setting the unit adjusting frequency of the compressor, single frequency modulation is carried out by the unit adjusting frequency on the basis of the rated minimum frequency, so that frequency fine tuning can be realized during variable-frequency operation, and the accuracy of adjusting the second preset frequency and the third preset frequency is improved.
In some embodiments, determining whether the air conditioner satisfies the optimal control condition includes: and periodically judging whether the air conditioner meets the optimized control condition or not by taking the preset time as a period. For example, whether the air conditioner meets the optimal control condition is judged again at intervals, so that the control mode of the air conditioner is adjusted in time, and the control accuracy is improved.
A method for controlling an air conditioner according to an embodiment of the present invention is described below with reference to fig. 2, which is a flowchart of the method for controlling an air conditioner according to an embodiment of the present invention, as shown in fig. 2.
Step S11, start.
Step S12, judging whether the air conditioner meets the optimization control condition, if yes, executing step S13; if not, go to step S19.
And step S13, controlling the air conditioner to enter an optimization control mode when the air conditioner is started.
In step S14, the air conditioner operates at the nominal minimum frequency F for a first preset time.
Step S15, determining whether the difference between the indoor ambient temperature and the set temperature is greater than a third preset threshold, if yes, jumping to step S19, and if not, jumping to one of step S16, step S17, and step S18.
And step S16, if the difference is less than or equal to the first preset threshold, controlling the compressor to continuously run at the rated minimum frequency.
In step S17, if the difference is greater than the first preset threshold and less than or equal to the second preset threshold, the compressor is controlled to operate at a second preset frequency.
In step S18, if the difference is greater than the second preset threshold and less than or equal to a third preset threshold, the compressor is controlled to operate at a third preset frequency.
And step S19, controlling the air conditioner to enter a conventional control mode and operate according to a first preset frequency constant frequency.
Step S20 ends.
According to the control method of the air conditioner, the air conditioner is determined to meet the optimized control condition, the air conditioner is controlled to enter the optimized control mode when the air conditioner is started, and the compressor is controlled to perform variable frequency operation on the basis of the rated minimum frequency of the compressor under the optimized control mode, so that the stable operation time of the refrigeration mode is increased, the situation that the air conditioner is frequently stopped at a temperature due to the fact that the compressor operates at a higher frequency when the air conditioner is restarted is avoided, the indoor environment temperature quickly reaches the set temperature of the air conditioner, and accordingly the shutdown frequency of the compressor is reduced, the operation stability of the air conditioner is improved, the comfort feeling of a user is improved, and meanwhile the electric quantity can be effectively saved.
A control device of an air conditioner according to an embodiment of the second aspect of the present invention will be described with reference to fig. 3.
Fig. 3 is a block diagram of a control apparatus of an air conditioner according to an embodiment of the present invention. As shown in fig. 3, a control device 2 of an air conditioner according to an embodiment of the present invention includes: a judging module 20 and a control module 21.
The judging module 20 is configured to judge whether the air conditioner satisfies an optimal control condition, where the optimal control condition includes: the compressor is stopped, the indoor environment temperature is equal to the set temperature of the air conditioner, the indoor fan is in a normal state, and the air conditioner is in a refrigeration mode.
The control module 21 is configured to control the air conditioner to enter an optimal control mode when the air conditioner meets an optimal control condition and the air conditioner is started, wherein in the optimal control mode, the compressor is controlled to perform variable frequency operation based on a rated minimum frequency of the compressor; and when the air conditioner does not meet the optimized control condition and the air conditioner is started, controlling the air conditioner to enter a conventional control mode, wherein in the conventional control mode, the compressor runs at a first preset frequency constant frequency, and the first preset frequency is greater than the rated minimum frequency.
According to the control device 2 of the air conditioner, the air conditioner is determined to meet the optimized control condition, the air conditioner is controlled to enter the optimized control mode when the air conditioner is started, and the compressor is controlled to perform variable frequency operation on the basis of the rated minimum frequency of the compressor under the optimized control mode, so that the stable operation time of the refrigeration mode is increased, the situation that the temperature of the air conditioner is frequently reached due to the fact that the compressor operates at a higher frequency when the air conditioner is restarted is avoided, the indoor environment temperature quickly reaches the set temperature of the air conditioner, and the air conditioner is frequently stopped due to the fact that the temperature of the air conditioner is reached, therefore, the number of times of the compressor is stopped is reduced, the operation stability of the air conditioner is improved, the comfort feeling of a user is improved, and meanwhile, the electric quantity can be effectively saved.
In some embodiments, the control module 21 is specifically configured to: controlling the air conditioner to run at a rated minimum frequency for a first preset time, and then determining the difference value between the indoor environment temperature and the set temperature; and controlling the compressor to perform variable frequency operation according to the difference value. In a particular embodiment, the nominal minimum frequency is, for example, denoted as F. After the air conditioner is controlled to enter the optimization control mode, the air conditioner is firstly controlled to run at the rated minimum frequency F for a first preset time, for example, 5min-10 min. Specifically, when the air conditioner runs at the rated minimum frequency F, whether the running time of the air conditioner reaches a first preset time needs to be judged, if the running time does not reach the first preset time, the air conditioner is controlled to continue running at the rated minimum frequency F, and the problem that a compressor is stopped due to untimely frequency reduction when the air conditioner is started is solved; if the air conditioner runs at the rated minimum frequency F for the first preset time, the difference value between the indoor environment temperature and the set temperature is further determined, for example, recorded as delta t, and the running frequency of the compressor is adjusted according to the difference value delta t, so that the compressor is controlled to run in a variable frequency mode on the basis of the rated minimum frequency F of the compressor, the indoor environment temperature is guaranteed to be stable, and the shutdown frequency is reduced.
In some embodiments, the control module 21 is specifically configured to: when the difference value is smaller than or equal to a first preset threshold value, controlling the compressor to continuously run at a rated minimum frequency; when the difference value is greater than the first preset threshold value and less than or equal to a second preset threshold value, controlling the compressor to operate at a second preset frequency, wherein the second preset frequency is greater than a rated minimum frequency; when the difference value is greater than a second preset threshold value and less than or equal to a third preset threshold value, controlling the compressor to operate at a third preset frequency, wherein the third preset frequency is greater than the second preset frequency; and when the difference value is greater than the third preset threshold value, controlling the air conditioner to enter a conventional control mode, wherein the third preset frequency is less than the first preset frequency.
It can be understood that, when the compressor is controlled to perform variable frequency operation according to the difference value Δ t between the indoor environment temperature and the set temperature, the relation between the difference value Δ t and different preset threshold values needs to be compared, and when the difference value Δ t is within different preset threshold value ranges, the compressor is controlled to operate at a corresponding frequency, namely, the frequency of the compressor is adjusted according to the difference value Δ t, so that variable frequency operation is realized, the indoor environment temperature can be ensured to be in a stable state, and the problem of frequent shutdown can not occur. Specifically, when the difference Δ t is less than or equal to a first preset threshold, for example, Δ t is less than or equal to 1 ℃, it is determined that the difference between the indoor environment temperature and the set temperature is small, and at this time, the compressor is controlled to continue to operate at a smaller operation frequency, that is, a rated minimum frequency F, so that the indoor environment temperature changes smoothly; when the difference value delta t is greater than a first preset threshold value and less than or equal to a second preset threshold value, for example, when the temperature is more than 1 ℃ and less than delta t and less than or equal to 2 ℃, controlling the compressor to operate at an operating frequency slightly greater than the rated minimum frequency F, namely, a second preset frequency, for example, operating at F + delta F; and when the difference value delta t is greater than the second preset threshold value and less than or equal to a third preset threshold value, for example, when the temperature is more than 2 ℃ and less than or equal to delta t and less than or equal to 3 ℃, controlling the compressor to operate at an operating frequency slightly greater than the second preset frequency, namely, the third preset frequency, for example, at F +2 delta F. Therefore, the running frequency of the compressor is correspondingly adjusted by determining the relation between the difference value delta t and different preset threshold values, so that the indoor environment temperature is stable, and the problem of shutdown is reduced.
When the difference value Δ t is greater than the third preset threshold value, for example, Δ t > 3 ℃, it is considered that the temperature difference between the indoor environment temperature and the set temperature is large, at this time, if the compressor is controlled based on the rated minimum frequency F, the compressor is controlled to perform variable frequency operation, and the indoor environment temperature may not be rapidly reduced to the set temperature, so that the air conditioner needs to be controlled to enter a conventional control mode, thereby the air conditioner is operated at a high frequency, namely, at a constant frequency of the first preset frequency, thereby the indoor environment temperature can be rapidly reduced to the set temperature in a short time, thereby rapidly regulating and controlling the indoor environment temperature, and thereby the indoor environment temperature is ensured to rapidly meet the user requirements.
In some embodiments, the second predetermined frequency is the sum of the nominal minimum frequency and the unit modulation frequency of the compressor, and the third predetermined frequency is the sum of the second predetermined frequency and the unit modulation frequency of the compressor. It will be understood that the second preset frequency and the third preset frequency are obtained by performing an adjustment increase in the unit adjustment frequency of the compressor on the basis of the nominal minimum frequency, for example, the second preset frequency is the sum of the nominal minimum frequency and the unit adjustment frequency of the compressor, i.e., the second preset frequency is F + Δ F; the third preset frequency is the sum of the second preset frequency and the unit adjustment frequency of the compressor, that is, the third preset frequency is F +2 Δ F. By setting the unit adjusting frequency of the compressor, single frequency modulation is carried out by the unit adjusting frequency on the basis of the rated minimum frequency, so that frequency fine tuning can be realized during variable-frequency operation, and the accuracy of adjusting the second preset frequency and the third preset frequency is improved.
In some embodiments, the determining module 20 is specifically configured to determine whether the air conditioner satisfies the optimal control condition, and includes: and periodically judging whether the air conditioner meets the optimized control condition or not by taking the preset time as a period. For example, whether the air conditioner meets the optimal control condition is judged again at intervals, so that the control mode of the air conditioner is adjusted in time, and the control accuracy is improved.
It should be noted that a specific implementation manner of the control device 2 of the air conditioner according to the embodiment of the present invention is similar to a specific implementation manner of the control method of the air conditioner according to any of the above embodiments of the present invention, and please refer to the description of the method part specifically, and details are not described here for reducing redundancy.
According to the control device 2 of the air conditioner, the air conditioner is determined to meet the optimized control condition, the air conditioner is controlled to enter the optimized control mode when the air conditioner is started, and the compressor is controlled to perform variable frequency operation on the basis of the rated minimum frequency of the compressor under the optimized control mode, so that the stable operation time of the refrigeration mode is increased, the situation that the temperature of the air conditioner is frequently reached due to the fact that the compressor operates at a higher frequency when the air conditioner is restarted is avoided, the indoor environment temperature quickly reaches the set temperature of the air conditioner, and the air conditioner is frequently stopped due to the fact that the temperature of the air conditioner is reached, therefore, the number of times of the compressor is stopped is reduced, the operation stability of the air conditioner is improved, the comfort feeling of a user is improved, and meanwhile, the electric quantity can be effectively saved.
An air conditioner according to an embodiment of a third aspect of the present invention is described below, including: the control device 2 of the air conditioner of any of the above embodiments; alternatively, the air conditioner includes: the air conditioner control system comprises a processor, a memory and a control program of the air conditioner, wherein the control program of the air conditioner is stored on the memory and can run on the processor, and the control program of the air conditioner realizes the control method of the air conditioner of any one of the embodiments when being executed by the processor.
In this embodiment, a specific implementation manner of the air conditioner is similar to a specific implementation manner of the control device 2 of the air conditioner according to any of the above embodiments of the present invention, and please refer to the description of the control device 2 of the air conditioner specifically, and details are not described here again in order to reduce redundancy.
According to the air conditioner provided by the embodiment of the invention, the air conditioner is determined to meet the optimal control condition, the air conditioner is controlled to enter the optimal control mode when the air conditioner is started, and the compressor is controlled to perform variable frequency operation on the basis of the rated minimum frequency of the compressor under the optimal control mode, so that the stable operation time of the refrigeration mode is increased, the situation that the air conditioner frequently achieves warm shutdown due to the fact that the indoor environment temperature rapidly reaches the set temperature of the air conditioner when the air conditioner is restarted is avoided, the shutdown frequency of the compressor is reduced, the running stability of the air conditioner is improved, the user comfort is improved, and meanwhile, the electric quantity can be effectively saved.
A computer-readable storage medium according to a fourth embodiment of the present invention is described below, the computer-readable storage medium having stored thereon a control program of an air conditioner, the control program of the air conditioner, when executed by a processor, implementing a control method of the air conditioner according to any one of the embodiments described above.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A control method of an air conditioner is characterized by comprising the following steps:
judging whether the air conditioner meets an optimized control condition, wherein the optimized control condition comprises the following steps: the compressor is stopped, the indoor environment temperature is equal to the set temperature of the air conditioner, the indoor fan is in a normal state, and the air conditioner is in a refrigeration mode;
if so, controlling the air conditioner to enter an optimized control mode when the air conditioner is started, wherein in the optimized control mode, the compressor is controlled to carry out variable frequency operation on the basis of the rated minimum frequency of the compressor;
if not, when the air conditioner is started, the air conditioner is controlled to enter a conventional control mode, wherein in the conventional control mode, the compressor runs at a first preset frequency constant frequency, and the first preset frequency is larger than the rated minimum frequency.
2. The method for controlling an air conditioner according to claim 1, wherein the controlling the compressor to perform the inverter operation based on the rated minimum frequency of the compressor comprises:
after controlling the air conditioner to run at the rated minimum frequency for a first preset time, determining the difference between the indoor environment temperature and the set temperature;
and controlling the compressor to perform variable frequency operation according to the difference value.
3. The method as claimed in claim 2, wherein the controlling the compressor to perform the inverter operation according to the difference value comprises:
if the difference value is smaller than or equal to a first preset threshold value, controlling the compressor to continuously run at the rated minimum frequency;
if the difference value is greater than the first preset threshold value and less than or equal to a second preset threshold value, controlling the compressor to operate at a second preset frequency, wherein the second preset frequency is greater than the rated minimum frequency;
if the difference value is greater than the second preset threshold value and less than or equal to a third preset threshold value, controlling the compressor to operate at a third preset frequency, wherein the third preset frequency is greater than the second preset frequency;
and if the difference value is greater than a third preset threshold value, controlling the air conditioner to enter the conventional control mode, wherein the third preset frequency is less than the first preset frequency.
4. The control method of an air conditioner according to claim 3, wherein the second preset frequency is a sum of the rated minimum frequency and a unit adjusting frequency of a compressor, and the third preset frequency is a sum of the second preset frequency and the unit adjusting frequency of the compressor.
5. The method of claim 1, wherein the determining whether the air conditioner satisfies an optimal control condition comprises:
and periodically judging whether the air conditioner meets the optimized control condition or not by taking preset time as a period.
6. A control apparatus of an air conditioner, comprising:
the judging module is used for judging whether the air conditioner meets the optimized control condition, wherein the optimized control condition comprises the following steps: the compressor is stopped, the indoor environment temperature is equal to the set temperature of the air conditioner, the indoor fan is in a normal state, and the air conditioner is in a refrigeration mode;
the control module is used for controlling the air conditioner to enter an optimal control mode when the air conditioner meets an optimal control condition and the air conditioner is started, wherein the compressor is controlled to perform variable frequency operation under the optimal control mode on the basis of the rated minimum frequency of the compressor; and when the air conditioner does not meet the optimized control condition and the air conditioner is started, controlling the air conditioner to enter a conventional control mode, wherein in the conventional control mode, the compressor runs at a first preset frequency constant frequency, and the first preset frequency is greater than the rated minimum frequency.
7. The control device of the air conditioner according to claim 6, wherein the control module is specifically configured to:
after controlling the air conditioner to run at the rated minimum frequency for a first preset time, determining the difference between the indoor environment temperature and the set temperature;
and controlling the compressor to perform variable frequency operation according to the difference value.
8. The control device of an air conditioner according to claim 6, wherein the determining module is specifically configured to:
and periodically judging whether the air conditioner meets the optimized control condition or not by taking preset time as a period.
9. An air conditioner, comprising:
a control device of an air conditioner according to any one of claims 6 to 8; or
A processor, a memory, and a control program of an air conditioner stored on the memory and executable on the processor, the control program of the air conditioner implementing the control method of the air conditioner as claimed in any one of claims 1 to 5 when executed by the processor.
10. A computer-readable storage medium, characterized in that a control program of an air conditioner is stored thereon, and when executed by a processor, implements the control method of the air conditioner according to any one of claims 1 to 5.
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| CN117287804A (en) * | 2023-11-24 | 2023-12-26 | 珠海格力电器股份有限公司 | Shutdown control method and device for air conditioner, air conditioner and medium |
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