CN114396713A - Air conditioner control method, air conditioner, electronic device and storage medium - Google Patents
Air conditioner control method, air conditioner, electronic device and storage medium Download PDFInfo
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- CN114396713A CN114396713A CN202111537906.3A CN202111537906A CN114396713A CN 114396713 A CN114396713 A CN 114396713A CN 202111537906 A CN202111537906 A CN 202111537906A CN 114396713 A CN114396713 A CN 114396713A
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
Abstract
The invention provides an air conditioner control method, an air conditioner, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring the actual operating temperature and the set temperature of the air conditioner every first time interval; judging whether the compressor of the air conditioner needs to increase or decrease the frequency according to the actual operating temperature and the set temperature; if the compressor needs to reduce the frequency, the frequency reduction frequency of the compressor is recorded, the frequency reduction of the compressor is controlled, and the frequency reduction amplitude of the compressor is decreased gradually along with the increase of the frequency reduction frequency. The air conditioner control method, the air conditioner, the electronic equipment and the storage medium are beneficial to reducing the frequency of the frequency increasing and decreasing adjustment of the compressor.
Description
Technical Field
The present invention relates to the field of air temperature conditioning technologies, and in particular, to an air conditioner control method, an air conditioner, an electronic device, and a storage medium.
Background
The existing air conditioner adjusts the frequency of the compressor to make the indoor temperature reach and maintain the set temperature. However, the air conditioner is prone to frequent frequency increase and decrease due to temperature protection, and the outlet air temperature is uneven.
Disclosure of Invention
The invention provides an air conditioner control method, an air conditioner, electronic equipment and a storage medium, which are used for solving the defect that the air outlet temperature is uneven because the frequency of the air conditioner is frequently increased and decreased due to temperature protection in the prior art.
The invention provides an air conditioner control method, which comprises the following steps: acquiring the actual operating temperature and the set temperature of the air conditioner every first time interval; judging whether the compressor of the air conditioner needs to increase or decrease the frequency according to the actual operating temperature and the set temperature; if the compressor needs to reduce the frequency, the frequency reduction frequency of the compressor is recorded, the frequency reduction of the compressor is controlled, and the frequency reduction amplitude of the compressor is decreased gradually along with the increase of the frequency reduction frequency.
According to the air conditioner control method provided by the invention, after the judgment that the compressor of the air conditioner needs to be subjected to frequency increasing or frequency reducing, the method further comprises the following steps: if the compressor needs to be frequency-raised, calculating the temperature difference between the actual operation temperature and the set temperature; and controlling the frequency of the compressor to be increased according to the temperature difference.
According to the air conditioner control method provided by the invention, if the compressor needs to be frequency-raised, the step of calculating the temperature difference between the actual operation temperature and the set temperature comprises the following steps: if the compressor needs frequency increasing, the running time of the air conditioner is obtained; determining whether the runtime is greater than a runtime threshold; if the running time is larger than the running time threshold, controlling the frequency of the compressor to be unchanged; and if the running time is less than or equal to the running time threshold value, calculating the temperature difference between the actual running temperature and the set temperature.
According to the air conditioner control method provided by the invention, the step of controlling the frequency rising of the compressor according to the temperature difference comprises the following steps: judging whether the temperature difference is larger than a temperature difference threshold value or not; if the temperature difference is larger than the temperature difference threshold value, controlling the compressor to increase the frequency, wherein the frequency increasing amplitude of the compressor is in direct proportion to the temperature difference; and if the temperature difference is less than or equal to the temperature difference threshold value, controlling the frequency of the compressor to be unchanged.
According to the air conditioner control method provided by the invention, the step of controlling the compressor to reduce the frequency comprises the following steps: judging whether the frequency of the compressor after frequency reduction is less than a preset minimum frequency or not; if the frequency of the compressor after the frequency reduction is less than the preset minimum frequency, controlling the compressor to stop; and if the frequency after the compressor is subjected to frequency reduction is greater than or equal to the preset minimum frequency, controlling the compressor to reduce the frequency.
According to the air conditioner control method provided by the invention, the step of acquiring the actual operating temperature and the set temperature of the air conditioner comprises the following steps: acquiring the temperature of an inner coil and the set temperature of the inner coil; the step of judging whether the compressor of the air conditioner needs to be subjected to frequency increasing or frequency reducing according to the actual operating temperature and the set temperature comprises the following steps of: confirming an operation mode of the air conditioner; under the condition that the air conditioner operates in a heating mode, if the temperature of the inner coil is higher than the set temperature of the inner coil, the compressor is judged to need frequency reduction, and if the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, the compressor is judged to need frequency increase; under the condition that the air conditioner operates in a refrigeration mode, if the temperature of the inner coil is higher than the set temperature of the inner coil, the compressor is judged to need frequency increasing, and if the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, the compressor is judged to need frequency decreasing.
According to the air conditioner control method provided by the invention, the step of acquiring the actual operating temperature and the set temperature of the air conditioner comprises the following steps: acquiring an exhaust temperature and an exhaust set temperature; the exhaust temperature is the temperature of the refrigerant discharged by the compressor; the step of judging whether the compressor of the air conditioner needs to be subjected to frequency increasing or frequency reducing according to the actual operating temperature and the set temperature comprises the following steps of: if the exhaust temperature is higher than the exhaust set temperature, judging that the compressor needs to reduce the frequency; and if the exhaust temperature is less than or equal to the exhaust set temperature, judging that the compressor needs to be frequency-increased.
The invention also provides an air conditioner, which comprises a controller, wherein the controller is used for executing the air conditioner control method.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the program to realize the steps of the air conditioner control method.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the air conditioning control method as set forth in any one of the above.
According to the air conditioner control method, the air conditioner, the electronic equipment and the storage medium, the actual operation temperature of the air conditioner is gradually close to the set temperature by controlling the frequency rising and falling of the compressor, and the air conditioner can stably operate. And when the compressor is controlled to reduce the frequency, the frequency reduction amplitude is reduced along with the increase of the frequency reduction times, so that the adjustment precision of the air conditioner refrigeration or heating efficiency is gradually improved, and the problems that the frequency of the compressor is difficult to adjust to a certain proper range due to the fixed frequency reduction amplitude, the frequency of the compressor is frequently reduced, the air outlet temperature is uneven, the running state of the air conditioner is unstable, and the user experience is poor are avoided.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of an air conditioning control method provided by the present invention;
fig. 2 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides an air conditioner control method, including the steps of:
and acquiring the actual operating temperature and the set temperature of the air conditioner every first time interval.
And judging whether the compressor of the air conditioner needs to be subjected to frequency increasing or frequency reducing according to the actual operating temperature and the set temperature.
If the compressor needs to reduce the frequency, the frequency reduction frequency of the compressor is recorded, the frequency reduction of the compressor is controlled, and the frequency reduction amplitude of the compressor is decreased gradually along with the increase of the frequency reduction frequency.
The actual operating temperature of the air conditioner may be a temperature of a component or a part inside the air conditioner detected in real time, and the set temperature is a temperature which the component or the part should theoretically have and corresponds to the actual operating temperature. For example, the actual operating temperature may be the temperature of the inner coil of the air conditioner, and the set temperature is the theoretical temperature that the current inner coil should reach, which is determined according to the set temperature and the cooling and heating mode. Or the actual operation temperature is the actual temperature of the refrigerant discharged by the air-conditioning compressor, and the set temperature is the preset temperature of the refrigerant discharged by the compressor.
The air conditioner judges that the compressor of the air conditioner needs to be increased or decreased in frequency at the moment by comparing the actual operating temperature with the set temperature. It can be understood that the air conditioner changes the cooling or heating efficiency of the air conditioner by controlling the frequency increase and decrease of the compressor, the higher the frequency of the compressor is, the higher the cooling or heating efficiency of the air conditioner is, the frequency increase and decrease of the compressor is controlled by the air conditioner, so that the actual operation temperature is close to and stabilized at the set temperature, and the air conditioner is kept in the stable working state.
And if the compressor needs to reduce the frequency, recording the frequency reduction times of the compressor to increase once, and controlling the frequency reduction of the compressor according to the frequency reduction times. Namely, in the initial state, the frequency up-down judgment is carried out, if the compressor needs to down-convert, the frequency down-converting times is recorded as one time, and the compressor is controlled to down-convert according to the first frequency down-converting amplitude. And after the first time period, performing frequency increasing and decreasing judgment again, if the compressor needs to decrease the frequency, recording the frequency decreasing frequency twice, controlling the compressor to decrease the frequency according to a second frequency decreasing amplitude, and so on. And, the frequency reduction amplitude decreases as the frequency reduction number increases.
According to the air conditioner control method provided by the invention, the actual operation temperature of the air conditioner is gradually close to the set temperature by controlling the frequency rising and falling of the compressor, so that the air conditioner can stably operate. And when the compressor is controlled to reduce the frequency, the frequency reduction amplitude is reduced along with the increase of the frequency reduction times, so that the adjustment precision of the air conditioner refrigeration or heating efficiency is gradually improved, and the phenomenon that the frequency of the compressor is difficult to adjust to a certain proper range due to the fixed frequency reduction amplitude is avoided, so that the frequency of the compressor is frequently reduced, the actual operation temperature vibrates near the set temperature, the operation state of the air conditioner is unstable, and the user experience is poor.
On the basis of the above embodiments, in some embodiments of the present invention, the step of acquiring the actual operating temperature and the set temperature of the air conditioner includes:
acquiring an exhaust temperature and an exhaust set temperature; the exhaust temperature is the temperature of the refrigerant discharged by the compressor.
The step of judging whether the compressor of the air conditioner needs to be increased or decreased in frequency according to the actual operating temperature and the set temperature comprises the following steps:
if the exhaust temperature is higher than the exhaust set temperature, judging that the compressor needs to reduce the frequency; if the exhaust temperature is less than or equal to the exhaust set temperature, the compressor is judged to need to be increased in frequency.
That is, in some embodiments provided by the present invention, the actual operating temperature is the exhaust temperature and the set temperature is the exhaust set temperature. It can be understood that the temperature of the refrigerant discharged from the compressor is generally high, and generally has an upper limit, and the compressor is easily damaged when the discharge temperature exceeds the upper limit. The set exhaust temperature is preset according to the actual state of the air conditioner, such as the set temperature, the cooling or heating mode, the type of the compressor and other factors. And judging whether the compressor needs to reduce or increase the frequency according to whether the exhaust temperature is higher than the exhaust set temperature or not, so that the exhaust temperature is stabilized around the exhaust set temperature, the compressor is protected, and the damage of the compressor caused by the fact that the exhaust temperature exceeds the upper limit is avoided.
In other embodiments of the present invention, the step of acquiring the actual operating temperature and the set temperature of the air conditioner includes:
and acquiring the temperature of the inner coil and the set temperature of the inner coil.
The step of judging whether the compressor of the air conditioner needs to be increased or decreased in frequency according to the actual operating temperature and the set temperature comprises the following steps:
confirming the operation mode of the air conditioner.
Under the condition that the air conditioner operates in the heating mode, if the temperature of the inner coil is higher than the set temperature of the inner coil, the compressor is judged to need frequency reduction, and if the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, the compressor is judged to need frequency increase.
Under the condition that the air conditioner operates in a refrigeration mode, if the temperature of the inner coil is higher than the set temperature of the inner coil, the compressor is judged to need to be increased in frequency, and if the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, the compressor is judged to need to be decreased in frequency.
That is, in some embodiments provided by the present invention, the actual operating temperature is the inner coil temperature and the set temperature is the inner coil set temperature. The set temperature of the inner coil pipe can be a preset value determined according to the set temperature, the indoor temperature, the size of the inner coil pipe and other factors. It can be understood that in the heating mode, if the temperature of the inner coil is higher than the set temperature of the inner coil, the heating efficiency is relatively high, and the compressor needs to be down-converted; if the temperature of the inner coil is less than or equal to the set temperature of the inner coil, the heating efficiency is low, and the compressor can be judged to need to be increased in frequency. In the cooling mode, if the temperature of the inner coil is higher than the set temperature of the inner coil, it is determined that the compressor needs to be increased in frequency, and if the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, it is determined that the compressor needs to be decreased in frequency. According to the temperature of the inner coil pipe and the set temperature of the inner coil pipe, the compressor needs to be subjected to frequency reduction or frequency increase, the temperature stability of the inner coil pipe is kept, the air outlet temperature is kept stable, and the user experience is improved.
On the basis of the above embodiments, optionally, in some embodiments of the present invention, after the step of determining that the compressor of the air conditioner needs to be increased or decreased in frequency, the method further includes the steps of:
and if the compressor needs to be frequency-raised, calculating the temperature difference between the actual operation temperature and the set temperature.
And controlling the frequency of the compressor to be increased according to the temperature difference.
For example, in some embodiments, the actual operating temperature and the set temperature are the exhaust temperature and the exhaust set temperature, respectively. If the exhaust temperature is less than or equal to the exhaust set temperature, the compressor is judged to need to be increased in frequency, the temperature difference between the exhaust temperature and the exhaust set temperature is calculated, and the compressor is controlled to be increased in frequency according to the temperature difference between the exhaust temperature and the exhaust set temperature.
In other embodiments, the actual operating temperature and the set temperature are the temperature of the inner coil and the set temperature of the inner coil respectively, if the temperature of the inner coil in the heating mode is less than or equal to the set temperature of the inner coil or the temperature of the inner coil in the cooling mode is greater than the set temperature of the inner coil, the frequency increase of the compressor is determined to be required, the temperature difference between the temperature of the inner coil and the set temperature of the inner coil is calculated, and the frequency increase of the compressor is controlled according to the temperature difference between the temperature of the inner coil and the set temperature of the inner coil.
On the basis of the above embodiments, optionally, in some embodiments of the present invention, if the compressor needs to be frequency-increased, the step of calculating the temperature difference between the actual operating temperature and the set temperature includes:
and if the compressor needs to be frequency-raised, acquiring the running time of the air conditioner.
It is determined whether the runtime is greater than a runtime threshold.
And if the running time is greater than the running time threshold, controlling the frequency of the compressor to be unchanged.
And if the running time is less than or equal to the running time threshold value, calculating the temperature difference between the actual running temperature and the set temperature.
The running time threshold may be estimated debugging time required for a preset air conditioner to reach a stable running stage. The operation time is the time counted from the time when the air conditioner enters the cooling or heating mode.
Optionally, in some embodiments, the actual operating temperature and the set temperature are an exhaust temperature and an exhaust set temperature, respectively, and the air conditioning control method includes:
every interval of the first time period, the exhaust temperature and the exhaust set temperature are acquired.
And judging that the compressor of the air conditioner needs to be increased or decreased in frequency according to the exhaust temperature and the exhaust set temperature. If the exhaust temperature is less than or equal to the exhaust set temperature, the compressor is judged to need frequency increasing.
If the compressor needs to reduce the frequency, the frequency reduction frequency of the compressor is recorded, the frequency reduction of the compressor is controlled, and the frequency reduction amplitude of the compressor is decreased gradually along with the increase of the frequency reduction frequency.
And if the compressor needs to be frequency-raised, acquiring the running time of the air conditioner, and judging whether the running time is greater than a running time threshold value.
And if the running time is greater than the running time threshold, controlling the frequency of the compressor to be unchanged.
And if the running time is less than or equal to the running time threshold, calculating the temperature difference between the exhaust temperature and the exhaust set temperature, and controlling the frequency rise of the compressor according to the temperature difference.
In other embodiments, the actual operating temperature is an inner coil temperature and an inner coil set temperature, and the air conditioning control method includes the steps of:
and acquiring the temperature of the inner coil and the set temperature of the inner coil every first time interval.
And confirming the operation mode of the air conditioner, and judging that the compressor of the air conditioner needs to be subjected to frequency increasing or frequency reducing according to the operation mode, the temperature of the inner coil and the set temperature of the inner coil. If the air conditioner operates in the heating mode and the temperature of the inner coil is higher than the set temperature of the inner coil, or the air conditioner operates in the cooling mode and the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, the compressor is judged to need to reduce the frequency; and if the air conditioner operates in the heating mode and the temperature of the inner coil is less than or equal to the set temperature of the inner coil, or the air conditioner operates in the cooling mode and the temperature of the inner coil is greater than the set temperature of the inner coil, judging that the frequency of the compressor needs to be increased.
If the compressor needs to reduce the frequency, the frequency reduction frequency of the compressor is recorded, the frequency reduction of the compressor is controlled, and the frequency reduction amplitude of the compressor is decreased gradually along with the increase of the frequency reduction frequency.
And if the compressor needs to be frequency-raised, acquiring the running time of the air conditioner, and judging whether the running time is greater than a running time threshold value.
And if the running time is greater than the running time threshold, controlling the frequency of the compressor to be unchanged.
And if the running time is less than or equal to the running time threshold value, calculating the temperature difference between the temperature of the inner coil and the set temperature of the inner coil, and controlling the frequency rise of the compressor according to the temperature difference.
According to the air conditioner control method provided by the invention, when the compressor needs to be subjected to frequency boosting, the air conditioner running time is obtained, if the running time does not exceed the running time threshold, the air conditioner is not considered to enter a stable running state, and the frequency boosting and reducing adjustment is carried out on the compressor. If the running time exceeds the running time threshold value, the air conditioner can be considered to enter or be close to enter a stable running state, the frequency reduction adjustment is only carried out when the compressor needs to reduce the frequency, the phenomenon that the compressor is damaged due to overhigh power is avoided, the frequency increase adjustment is not carried out on the compressor, the phenomenon that the frequency reduction is needed again due to overhigh power of the compressor after the frequency increase, and the continuous repeated frequency increase and decrease of the compressor are caused is avoided.
On the basis of the above embodiments, optionally, in some embodiments of the present invention, the step of controlling the compressor to increase the frequency according to the temperature difference includes:
and judging whether the temperature difference is larger than a temperature difference threshold value.
If the temperature difference is larger than the temperature difference threshold value, the compressor is controlled to increase the frequency, and the frequency increasing amplitude of the compressor is in direct proportion to the temperature difference.
And if the temperature difference is less than or equal to the temperature difference threshold value, controlling the frequency of the compressor to be unchanged.
For example, in some embodiments, the actual operating temperature and the set temperature are the exhaust temperature and the exhaust set temperature, respectively. If the exhaust temperature is less than or equal to the exhaust set temperature, judging that the compressor needs frequency raising, acquiring the operation time of the air conditioner, if the operation time is greater than an operation time threshold value, controlling the frequency of the compressor to be unchanged, if the operation time is less than or equal to the operation time threshold value, calculating the temperature difference between the exhaust temperature and the exhaust set temperature, if the temperature difference is less than or equal to a temperature difference threshold value, controlling the frequency of the compressor to be unchanged, if the temperature difference is greater than the temperature difference threshold value, controlling the compressor to raise the frequency, and enabling the frequency raising amplitude to be in direct proportion to the temperature difference.
In other embodiments, the actual operating temperature is the inside coil temperature and the inside coil set temperature. If the air conditioner operates in the heating mode and the temperature of the inner coil is smaller than or equal to the set temperature of the inner coil, or the air conditioner operates in the cooling mode and the temperature of the inner coil is larger than the set temperature of the inner coil, the frequency of the air conditioner is increased if the operation time is larger than the operation time threshold, the frequency of the compressor is controlled to be unchanged, the temperature difference between the temperature of the inner coil and the set temperature of the inner coil is calculated if the operation time is smaller than or equal to the operation time threshold, the frequency of the compressor is controlled to be unchanged if the temperature difference is smaller than or equal to the temperature difference threshold, the frequency of the compressor is controlled to be increased if the temperature difference is larger than the temperature difference threshold, and the frequency increasing amplitude is in direct proportion to the temperature difference.
It is understood that the difference between the exhaust temperature and the exhaust set temperature, or the difference between the inner coil temperature and the inner coil set temperature, is the absolute value of the difference. The proportional coefficient of the frequency rising amplitude and the temperature difference is a preset value and can be determined through experiments.
According to the air conditioner control method provided by the invention, when the fact that the compressor needs to be subjected to frequency raising is judged, the frequency raising amplitude is set in a proportional manner according to the temperature difference between the actual operation temperature and the set temperature, so that the smaller the temperature difference is, the smaller the frequency raising amplitude is, the higher the adjustment precision is, and the phenomenon that the frequency of the compressor exceeds a proper range due to the fact that the frequency raising amplitude is too large, and the frequency of the compressor is repeatedly raised and lowered is avoided.
According to the air conditioner control method provided by the invention, during frequency reduction, the frequency reduction amplitude is reduced along with the increase of the frequency reduction times, and during frequency increase, the frequency increase amplitude is reduced along with the reduction of the temperature difference, so that the frequency increase and decrease amplitude is gradually reduced along with the increase of the operation time of the air conditioner, and the frequency adjustment precision is gradually increased through multiple frequency increase and decrease judgment, so that the phenomenon that the frequency of the compressor repeatedly rises and falls to miss a proper range is avoided.
On the basis of the above embodiments, optionally, in some embodiments of the present invention, the step of controlling the compressor to down-convert includes:
and judging whether the frequency of the compressor after frequency reduction is less than a preset minimum frequency.
And if the frequency of the compressor after the frequency reduction is less than the preset minimum frequency, controlling the compressor to stop.
And if the frequency after the frequency reduction of the compressor is greater than or equal to the preset minimum frequency, controlling the frequency reduction of the compressor.
It can be understood that after the compressor needs to be frequency-reduced, the frequency-reduction amplitude of the frequency reduction can be determined according to the frequency reduction times, whether the frequency of the compressor after the frequency reduction is smaller than the preset minimum frequency is determined, and if the frequency of the compressor after the frequency reduction is smaller than the preset minimum frequency, the compressor is controlled to directly stop.
On the basis of the above embodiment, optionally, in some embodiments of the present invention, the actual operating temperature is the temperature of the inner coil and the set temperature of the inner coil, and in the heating mode, if it is determined that the compressor needs to be frequency-boosted, the temperature difference between the temperature of the inner coil and the set temperature of the inner coil is calculated, and the frequency-boosting amplitude of the compressor is controlled to be in direct proportion to the temperature difference; if the compressor needs to reduce the frequency, the frequency reduction frequency of the compressor is recorded, the frequency reduction of the compressor is controlled, and the frequency reduction amplitude of the compressor is decreased gradually along with the increase of the frequency reduction frequency. In the cooling mode, if the compressor is judged to need to be increased in frequency, the compressor is controlled to be increased in frequency according to a fixed increasing frequency amplitude, and if the compressor is judged to need to be decreased in frequency, the compressor is controlled to be decreased in frequency according to a fixed decreasing frequency amplitude. Therefore, in the heating mode, the frequency increasing and decreasing amplitude of the compressor is gradually reduced, and the frequency of the compressor is gradually stabilized; in the refrigeration mode, the compressor has fixed frequency reduction amplitude and higher frequency reduction speed, so that the temperature of the inner coil pipe is increased from lower temperature more quickly, and the inner coil pipe is prevented from frosting to influence the working state.
The air conditioner control method provided by the invention is further explained by two specific embodiments.
In one embodiment, the actual operating temperature and the set temperature are an exhaust temperature and an exhaust set temperature, respectively, and the air conditioning control method includes:
every interval of the first time period, the exhaust temperature and the exhaust set temperature are acquired.
And judging that the air conditioner needs to reduce or increase the frequency according to the exhaust temperature and the exhaust set temperature. If the exhaust temperature is higher than the exhaust set temperature, the compressor is judged to need to reduce the frequency; if the exhaust temperature is less than or equal to the exhaust set temperature, the compressor is judged to need to be increased in frequency.
If the frequency reduction of the compressor is judged to be required, recording the frequency reduction frequency of the compressor, judging whether the frequency of the compressor after frequency reduction is smaller than a preset minimum frequency or not, controlling the compressor to stop if the frequency of the compressor after frequency reduction is smaller than the preset minimum frequency, controlling the compressor to reduce the frequency if the frequency of the compressor after frequency reduction is larger than or equal to the preset minimum frequency, and decreasing the frequency reduction amplitude of the compressor along with the increase of the frequency reduction frequency.
If the judgment is that the compressor needs frequency boosting, the running time of the air conditioner is obtained, if the running time is larger than a running time threshold value, the frequency of the compressor is controlled to be unchanged, if the running time is smaller than or equal to the running time threshold value, the temperature difference between the exhaust temperature and the exhaust set temperature is calculated, if the temperature difference is smaller than or equal to a temperature difference threshold value, the frequency of the compressor is controlled to be unchanged, if the temperature difference is larger than the temperature difference threshold value, the frequency of the compressor is controlled to be boosted, and the frequency boosting amplitude is in direct proportion to the temperature difference.
In another embodiment, the actual operating temperature and the set temperature are the inner coil temperature and the inner coil set temperature, respectively, and the air conditioner control method includes:
and acquiring the temperature of the inner coil and the set temperature of the inner coil every first time interval.
And judging whether the air conditioner needs to reduce or increase the frequency according to the temperature of the inner coil and the set temperature of the inner coil. The method comprises the steps that the operation mode of the air conditioner is confirmed, and under the condition that the air conditioner operates in the heating mode, if the temperature of an inner coil is higher than the set temperature of the inner coil, it is judged that the frequency of a compressor needs to be reduced, and if the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, it is judged that the frequency of the compressor needs to be increased; under the condition that the air conditioner operates in a refrigeration mode, if the temperature of the inner coil is higher than the set temperature of the inner coil, the compressor is judged to need to be increased in frequency, and if the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, the compressor is judged to need to be decreased in frequency.
If the frequency reduction of the compressor is judged to be required, recording the frequency reduction frequency of the compressor, judging whether the frequency of the compressor after frequency reduction is smaller than a preset minimum frequency or not, controlling the compressor to stop if the frequency of the compressor after frequency reduction is smaller than the preset minimum frequency, controlling the compressor to reduce the frequency if the frequency of the compressor after frequency reduction is larger than or equal to the preset minimum frequency, and decreasing the frequency reduction amplitude of the compressor along with the increase of the frequency reduction frequency.
If the judgment is that the compressor needs frequency boosting, the running time of the air conditioner is obtained, if the running time is larger than a running time threshold value, the frequency of the compressor is controlled to be unchanged, if the running time is smaller than or equal to the running time threshold value, the temperature difference between the temperature of the inner coil pipe and the set temperature of the inner coil pipe is calculated, if the temperature difference is smaller than or equal to a temperature difference threshold value, the frequency of the compressor is controlled to be unchanged, if the temperature difference is larger than the temperature difference threshold value, the frequency of the compressor is controlled to be boosted, and the frequency boosting amplitude is in direct proportion to the temperature difference.
In addition, the invention also provides an air conditioner, which comprises a controller, wherein the controller can be used for executing the air conditioner control method provided by any embodiment.
The present invention also provides an electronic device as shown in fig. 2, which may include: a processor (processor)210, a communication Interface (communication Interface)220, a memory (memory)230 and a communication bus 240, wherein the processor 210, the communication Interface 220 and the memory 230 are communicated with each other via the communication bus 240. The processor 210 may call logic instructions in the memory 230 to execute the air conditioner control method provided in any of the above embodiments.
In addition, the logic instructions in the memory 230 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention further provides a computer program product, where the computer program product includes a computer program, where the computer program may be stored on a non-transitory computer readable storage medium, and when the computer program is executed by a processor, the computer is capable of executing the air conditioner control method provided in any of the above embodiments.
In still another aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing the air conditioner control method provided in any of the above embodiments
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed 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 modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An air conditioner control method, comprising:
acquiring the actual operating temperature and the set temperature of the air conditioner every first time interval;
judging whether the compressor of the air conditioner needs to increase or decrease the frequency according to the actual operating temperature and the set temperature;
if the compressor needs to reduce the frequency, the frequency reduction frequency of the compressor is recorded, the frequency reduction of the compressor is controlled, and the frequency reduction amplitude of the compressor is decreased gradually along with the increase of the frequency reduction frequency.
2. The air conditioner control method according to claim 1, wherein after determining that the compressor of the air conditioner needs to be increased or decreased in frequency, the method further comprises the steps of:
if the compressor needs to be frequency-raised, calculating the temperature difference between the actual operation temperature and the set temperature;
and controlling the frequency of the compressor to be increased according to the temperature difference.
3. The method as claimed in claim 2, wherein the step of calculating the temperature difference between the actual operating temperature and the set temperature if the compressor needs to be increased in frequency comprises:
if the compressor needs frequency increasing, the running time of the air conditioner is obtained;
determining whether the runtime is greater than a runtime threshold;
if the running time is larger than the running time threshold, controlling the frequency of the compressor to be unchanged;
and if the running time is less than or equal to the running time threshold value, calculating the temperature difference between the actual running temperature and the set temperature.
4. The air conditioner controlling method according to claim 2 or 3, wherein the step of controlling the compressor to increase the frequency according to the temperature difference includes:
judging whether the temperature difference is larger than a temperature difference threshold value or not;
if the temperature difference is larger than the temperature difference threshold value, controlling the compressor to increase the frequency, wherein the frequency increasing amplitude of the compressor is in direct proportion to the temperature difference;
and if the temperature difference is less than or equal to the temperature difference threshold value, controlling the frequency of the compressor to be unchanged.
5. The air conditioner controlling method as claimed in claim 1, wherein the step of controlling the compressor to be down-converted comprises:
judging whether the frequency of the compressor after frequency reduction is less than a preset minimum frequency or not;
if the frequency of the compressor after the frequency reduction is less than the preset minimum frequency, controlling the compressor to stop;
and if the frequency after the compressor is subjected to frequency reduction is greater than or equal to the preset minimum frequency, controlling the compressor to reduce the frequency.
6. The air conditioner control method according to any one of claims 1 to 5, wherein the step of acquiring the actual operating temperature and the set temperature of the air conditioner includes:
acquiring the temperature of an inner coil and the set temperature of the inner coil;
the step of judging whether the compressor of the air conditioner needs to be subjected to frequency increasing or frequency reducing according to the actual operating temperature and the set temperature comprises the following steps of:
confirming an operation mode of the air conditioner;
under the condition that the air conditioner operates in a heating mode, if the temperature of the inner coil is higher than the set temperature of the inner coil, the compressor is judged to need frequency reduction, and if the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, the compressor is judged to need frequency increase;
under the condition that the air conditioner operates in a refrigeration mode, if the temperature of the inner coil is higher than the set temperature of the inner coil, the compressor is judged to need frequency increasing, and if the temperature of the inner coil is lower than or equal to the set temperature of the inner coil, the compressor is judged to need frequency decreasing.
7. The air conditioner control method according to any one of claims 1 to 5, wherein the step of acquiring the actual operating temperature and the set temperature of the air conditioner includes:
acquiring an exhaust temperature and an exhaust set temperature; the exhaust temperature is the temperature of the refrigerant discharged by the compressor;
the step of judging whether the compressor of the air conditioner needs to be subjected to frequency increasing or frequency reducing according to the actual operating temperature and the set temperature comprises the following steps of:
if the exhaust temperature is higher than the exhaust set temperature, judging that the compressor needs to reduce the frequency; and if the exhaust temperature is less than or equal to the exhaust set temperature, judging that the compressor needs to be frequency-increased.
8. An air conditioner characterized by comprising a controller for executing the air conditioner control method according to any one of claims 1 to 7.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the air conditioning control method according to any one of claims 1 to 7 when executing the program.
10. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the air conditioning control method according to any one of claims 1 to 7.
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Cited By (1)
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| CN115164354A (en) * | 2022-07-08 | 2022-10-11 | 宁波奥克斯电气股份有限公司 | Frequency reduction protection control method and device, air conditioner and storage medium |
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