CN113739381B - Control method of air conditioner, air conditioner and computer readable storage medium - Google Patents
Control method of air conditioner, air conditioner and computer readable storage medium Download PDFInfo
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- CN113739381B CN113739381B CN202010486890.7A CN202010486890A CN113739381B CN 113739381 B CN113739381 B CN 113739381B CN 202010486890 A CN202010486890 A CN 202010486890A CN 113739381 B CN113739381 B CN 113739381B
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The invention discloses a control method of an air conditioner, which comprises the following steps: acquiring the current superheat degree of the air conditioner; when the current superheat degree is smaller than a first threshold value, acquiring a first target operation parameter according to a temperature parameter of an environment where the air conditioner is located and the current opening degree of an electronic expansion valve of the air conditioner, wherein the first target operation parameter meets a preset energy efficiency condition, the first target operation parameter comprises a target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the current opening degree; and operating according to the first target operating parameter. The invention also discloses an air conditioner and a computer readable storage medium, which achieve the effect of improving the operation reliability of the air conditioner.
Description
Technical Field
The present invention relates to the field of air conditioners, and in particular, to a control method of an air conditioner, and a computer-readable storage medium.
Background
With the improvement of living standard of people, the air conditioner has become a standard distributor for families and offices.
The existing air conditioner can obtain the operation parameters with the optimal energy efficiency according to the current indoor and outdoor environment temperature in the operation process, so that the air conditioner outputs proper cold or heat after operating according to the operation parameters with the optimal energy efficiency, the energy consumption of the air conditioner is saved, however, the condition of overhigh degree is often met in the operation process of the air conditioner, the opening degree of the electronic expansion valve is often required to be adjusted when the overhigh degree is overlow, the optimal operation parameters may not correspond to the opening degree of the electronic expansion valve adjusted when the overhigh degree is overlow, the operation parameters of the air conditioner are continuously switched, and the operation reliability of the air conditioner is poor.
Disclosure of Invention
The invention mainly aims to provide a control method of an air conditioner, the air conditioner and a computer readable storage medium, and aims to solve the problem of poor operation reliability of the air conditioner.
In order to achieve the above object, the present invention provides a method for controlling an air conditioner, comprising the steps of:
acquiring the current superheat degree of the air conditioner;
when the current superheat degree is smaller than a first threshold value, obtaining a first target operation parameter according to a temperature parameter of an environment where the air conditioner is located and a current opening degree of an electronic expansion valve of the air conditioner, wherein the first target operation parameter meets a preset energy efficiency condition, the first target operation parameter comprises a target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the current opening degree;
and operating according to the first target operating parameter.
Optionally, after the step of obtaining the current superheat degree of the air conditioner, the method further includes:
when the current superheat degree is larger than or equal to the first threshold value, acquiring a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located, wherein the second target operation parameter meets the preset energy efficiency condition;
and operating according to the second target operating parameter.
Optionally, the step of obtaining the current degree of superheat of the air conditioner is executed at regular time, and after the step of obtaining the current degree of superheat of the air conditioner, the method further includes:
when the current superheat degree is larger than or equal to the first threshold value, judging whether the currently acquired superheat degree is the superheat degree acquired for the first time;
when the currently acquired superheat degree is acquired for the first time, executing the step of acquiring a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located;
when the currently acquired degree of superheat is not the first acquired degree of superheat, judging whether the degree of superheat is larger than a second threshold, wherein the second threshold is larger than the first threshold;
and when the superheat degree is larger than the second threshold value, executing the step of obtaining a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located.
Optionally, after the step of determining whether the degree of superheat is greater than a second threshold, the method further includes:
when the superheat degree is smaller than or equal to the second threshold value, determining an acquisition mode for acquiring the target operation parameter at the last time;
acquiring a third target operation parameter according to the last acquiring mode and the temperature parameter of the environment where the air conditioner is located, wherein the third target operation parameter meets the preset energy efficiency condition;
and operating according to the third target operating parameter.
Optionally, the step of obtaining a third target operating parameter according to the last obtaining manner and the temperature parameter of the environment where the air conditioner is located includes:
when the last obtaining mode is to obtain target operation parameters according to the current opening degree of the electronic expansion valve and the temperature parameters, obtaining third target operation parameters according to the current temperature parameters of the environment where the air conditioner is located and the last obtained opening degree of the electronic expansion valve, wherein the third target operation parameters comprise the target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the last obtained opening degree of the electronic expansion valve;
and when the last obtaining mode is to obtain the target operation parameter according to the temperature parameter, obtaining the third target operation parameter according to the temperature parameter of the environment where the air conditioner is located.
Optionally, the step of obtaining a first target operation parameter according to the temperature parameter of the environment where the air conditioner is located and the current opening degree of the electronic expansion valve of the air conditioner further includes:
determining multiple groups of operation parameters according to the temperature parameters and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the temperature parameters and the operation parameters;
and determining an operation parameter which meets a target condition and has the highest energy efficiency value as a first target operation parameter in the operation parameters, wherein the target condition comprises that the target opening degree of the electronic expansion valve is smaller than or equal to the current opening degree.
Optionally, the step of obtaining a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located includes:
determining multiple groups of operation parameters according to the temperature parameters and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the temperature parameters and the operation parameters;
determining an energy efficiency value corresponding to each group of the operation parameters;
and determining the operation parameter with the maximum energy efficiency value as the second target operation parameter.
Optionally, the step of obtaining a first target operation parameter according to the temperature parameter of the environment where the air conditioner is located and the current opening degree of the electronic expansion valve of the air conditioner further includes:
inputting the temperature parameter and a target condition into a neural network model, wherein the target condition comprises that a target opening degree of the electronic expansion valve is smaller than or equal to a current opening degree of the electronic expansion valve;
acquiring the first target operation parameter output by the neural network model;
the step of obtaining a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located comprises the following steps:
inputting the temperature parameter into the neural network model;
and acquiring the second target operation parameter output by the neural network model.
Optionally, the superheat degree comprises at least one of a suction superheat degree and a discharge superheat degree, the suction superheat degree is obtained by current compressor suction pressure and current compressor suction temperature, the discharge superheat degree is obtained by current compressor discharge pressure and current compressor discharge temperature, or the discharge superheat degree is obtained by current target heat exchanger coil middle temperature and current compressor discharge temperature.
In addition, to achieve the above object, the present invention also provides an air conditioner, including: the control method comprises the following steps of storing a control program of the air conditioner, storing the control program of the air conditioner on the storage, and running on the processor, wherein the control program of the air conditioner realizes the steps of the control method of the air conditioner when being executed by the processor.
Further, to achieve the above object, the present invention also proposes a computer readable storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, implements the steps of the control method of the air conditioner as described above.
According to the control method of the air conditioner, the air conditioner and the computer readable storage medium provided by the embodiment of the invention, when the current superheat degree of the air conditioner is smaller than the first threshold value, by increasing the obtaining condition for obtaining the first target operation parameter with optimal energy efficiency, i.e., the target opening degree of the electronic expansion valve is less than or equal to the current opening degree of the electronic expansion valve, so that when the air conditioner acquires the first target operation parameter, acquiring a first target operation parameter meeting the reliability requirement and the energy consumption saving requirement according to the temperature parameter of the environment where the air conditioner is located and the current opening degree of an electronic expansion valve of the air conditioner, and the air conditioner operates according to the acquired first target operation parameter, the scheme can ensure that the energy efficiency of the air conditioner is higher while the opening degree of the electronic expansion valve is reduced to improve the superheat degree, and avoids repeatedly switching operation parameters, thereby achieving the effect of improving the operation reliability of the air conditioner.
Drawings
Fig. 1 is a schematic diagram of a hardware architecture of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a control method of an air conditioner according to a first embodiment of the present invention;
FIG. 3 is a flow chart illustrating a control method of an air conditioner according to a second embodiment of the present invention;
fig. 4 is a flowchart illustrating a control method of an air conditioner according to a third embodiment of the present invention.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The existing air conditioner can obtain the operation parameters with the optimal energy efficiency according to the current indoor and outdoor environment temperature in the operation process, so that the air conditioner outputs proper cold or heat after operating according to the operation parameters with the optimal energy efficiency, the energy consumption of the air conditioner is saved, however, the condition of overhigh degree is often met in the operation process of the air conditioner, the opening degree of the electronic expansion valve is often required to be adjusted when the overhigh degree is overlow, the optimal operation parameters may not correspond to the opening degree of the electronic expansion valve adjusted when the overhigh degree is overlow, the operation parameters of the air conditioner are continuously switched, and the operation reliability of the air conditioner is poor.
In order to solve the above-mentioned drawbacks, an embodiment of the present invention provides a method for controlling an air conditioner, an air conditioner and a computer readable storage medium, wherein the method for controlling an air conditioner mainly includes the following steps:
acquiring the current superheat degree of the air conditioner;
when the current superheat degree is smaller than a first threshold value, obtaining a first target operation parameter according to a temperature parameter of an environment where the air conditioner is located and a current opening degree of an electronic expansion valve of the air conditioner, wherein the first target operation parameter meets a preset energy efficiency condition, the first target operation parameter comprises a target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the current opening degree;
and operating according to the first target operating parameter.
When the current superheat degree of the air conditioner is smaller than a first threshold value, the acquisition condition for acquiring the first target operation parameter with optimal energy efficiency is increased, namely the target opening degree of the electronic expansion valve is smaller than or equal to the current opening degree of the electronic expansion valve, so that when the air conditioner acquires the first target operation parameter, the first target operation parameter meeting the reliability requirement and the energy consumption saving requirement is acquired according to the temperature parameter of the environment where the air conditioner is located and the current opening degree of the electronic expansion valve of the air conditioner, and the air conditioner operates according to the acquired first target operation parameter.
As shown in fig. 1, fig. 1 is a schematic diagram of a hardware architecture of an air conditioner according to an embodiment of the present invention.
As shown in fig. 1, the air conditioner may include: a processor 1001, such as a CPU, a memory 1003, and a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The memory 1003 may be a high-speed RAM memory or a non-volatile memory (non-volatile memory). The memory 1003 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the hardware architecture of the air conditioner shown in fig. 1 does not constitute a limitation of the air conditioner, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, the memory 1003, which is a kind of computer storage medium, may include therein an operating system and a control program of an air conditioner.
In the air conditioner shown in fig. 1, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1003, and perform the following operations:
acquiring the current superheat degree of the air conditioner;
when the current superheat degree is smaller than a first threshold value, acquiring a first target operation parameter according to a temperature parameter of an environment where the air conditioner is located and the current opening degree of an electronic expansion valve of the air conditioner, wherein the first target operation parameter meets a preset energy efficiency condition, the first target operation parameter comprises a target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the current opening degree;
and operating according to the first target operating parameter.
Further, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1003, and further perform the following operations:
when the current superheat degree is larger than or equal to the first threshold value, acquiring a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located, wherein the second target operation parameter meets the preset energy efficiency condition;
and operating according to the second target operating parameter.
Further, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1003, and further perform the following operations:
when the current superheat degree is larger than or equal to the first threshold value, judging whether the currently acquired superheat degree is the superheat degree acquired for the first time;
when the currently acquired superheat degree is acquired for the first time, executing the step of acquiring a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located;
when the currently acquired superheat degree is not the superheat degree acquired for the first time, judging whether the superheat degree is larger than a second threshold value, wherein the second threshold value is larger than the first threshold value;
and when the superheat degree is larger than the second threshold value, executing the step of acquiring a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located.
Further, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1003, and further perform the following operations:
acquiring a third target operation parameter according to the last acquiring mode and the temperature parameter of the environment where the air conditioner is located, wherein the third target operation parameter meets the preset energy efficiency condition;
and operating according to the third target operating parameter.
Further, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1003, and further perform the following operations:
when the last obtaining mode is to obtain target operation parameters according to the current opening degree of the electronic expansion valve and the temperature parameters, obtaining third target operation parameters according to the current temperature parameters of the environment where the air conditioner is located and the last obtained opening degree of the electronic expansion valve, wherein the third target operation parameters comprise the target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the last obtained opening degree of the electronic expansion valve;
and when the last obtaining mode is to obtain the target operation parameter according to the temperature parameter, obtaining the third target operation parameter according to the temperature parameter of the environment where the air conditioner is located.
Further, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1003, and further perform the following operations:
determining multiple groups of operation parameters according to the temperature parameters and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the temperature parameters and the operation parameters;
and determining an operation parameter which meets a target condition and has the highest energy efficiency value as a first target operation parameter in the operation parameters, wherein the target condition comprises that the target opening degree of the electronic expansion valve is smaller than or equal to the current opening degree.
Further, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1003, and further perform the following operations:
determining multiple groups of operation parameters according to the temperature parameters and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the temperature parameters and the operation parameters;
determining an energy efficiency value corresponding to each group of the operation parameters;
and determining the operation parameter with the maximum energy efficiency value as the second target operation parameter.
Further, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1003, and further perform the following operations:
inputting the temperature parameter and a target condition into a neural network model, wherein the target condition comprises that a target opening degree of the electronic expansion valve is smaller than or equal to a current opening degree of the electronic expansion valve;
acquiring the first target operation parameter output by the neural network model;
the step of obtaining a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located comprises the following steps:
inputting the temperature parameter into the neural network model;
and acquiring the second target operation parameter output by the neural network model.
Referring to fig. 2, in a first embodiment of a control method of an air conditioner of the present invention, the control method of the air conditioner includes the steps of:
step S10, acquiring the current superheat degree of the air conditioner;
step S20, when the current superheat degree is smaller than a first threshold value, obtaining a first target operation parameter according to a temperature parameter of an environment where the air conditioner is located and a current opening degree of an electronic expansion valve of the air conditioner, wherein the first target operation parameter meets a preset energy efficiency condition, the first target operation parameter comprises a target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the current opening degree;
and step S30, operating according to the first target operating parameter.
In the present embodiment, the superheat degree refers to the difference between the superheat temperature and the saturation temperature; the first threshold value is a critical value for detecting whether the current superheat degree of the air conditioner is too low; the temperature parameters may include an indoor ambient temperature of an environment where an indoor unit of the air conditioner is located and an outdoor ambient temperature of an environment where an outdoor unit of the air conditioner is located; the first target operation parameter may include at least one of a rotation speed of the indoor fan, a rotation speed of the outdoor fan, an operation frequency of the compressor, an opening degree of the electronic expansion valve, an operation mode of the air conditioner, an exhaust temperature of the compressor, a coil middle temperature of the indoor heat exchanger, and a coil middle temperature of the outdoor heat exchanger; the preset energy efficiency condition may include at least one of a maximum energy efficiency value and an energy efficiency value greater than a preset threshold.
The processor acquires the current pressure value of the air inlet pipe and the air outlet pipe of the compressor, then acquires the saturation temperature corresponding to the current pressure value in the memory, acquires the current overheat temperature of the compressor, and takes the difference value between the current overheat temperature and the saturation temperature corresponding to the current pressure value as the current overheat degree of the air conditioner. Comparing the current superheat degree with a first threshold value, acquiring the current indoor environment temperature and the current outdoor environment temperature of the environment where the air conditioner is located when the current superheat degree is smaller than the first threshold value, acquiring the current opening degree of an electronic expansion valve of the air conditioner, and acquiring multiple corresponding sets of operation parameters in a memory according to the acquired current indoor environment temperature, the current outdoor environment temperature and the current opening degree of the electronic expansion valve; when the preset energy efficiency condition is that the energy efficiency value is maximum, selecting the operation parameter with the highest energy efficiency value from the obtained multiple groups of operation parameters as the current first target operation parameter of the air conditioner; when the preset energy efficiency condition is that the energy efficiency value is larger than a preset threshold value, comparing the preset threshold value with the energy efficiency values corresponding to the obtained multiple groups of operation parameters one by one, and when the energy efficiency value is detected to be larger than the preset threshold value, taking the operation parameters corresponding to the energy efficiency values larger than the preset threshold value as the current first target operation parameters of the air conditioner; and then controlling the component corresponding to the first target operation parameter in the air conditioner to operate according to the first target operation parameter.
Illustratively, when the acquired first target operation parameter includes that the rotation speed of the indoor fan is equal to a, the rotation speed of the outdoor fan is equal to B, the operation frequency of the compressor is equal to C, and the opening degree of the electronic expansion valve is D, the rotation speed of the indoor fan is controlled to be adjusted to a, the rotation speed of the outdoor fan is controlled to be adjusted to B, the operation frequency of the compressor is controlled to be adjusted to C, and the opening degree of the electronic expansion valve is controlled to be adjusted to D.
In the technical scheme disclosed in this embodiment, when the current superheat degree of the air conditioner is less than the first threshold, by increasing the obtaining condition for obtaining the first target operation parameter with the optimal energy efficiency, that is, the target opening degree of the electronic expansion valve is less than or equal to the current opening degree of the electronic expansion valve, when the air conditioner obtains the first target operation parameter, the first target operation parameter meeting the reliability requirement and the energy consumption saving requirement is obtained according to the temperature parameter of the environment where the air conditioner is located and the current opening degree of the electronic expansion valve of the air conditioner, and the air conditioner is operated according to the obtained first target operation parameter.
Alternatively, referring to fig. 3, in a second embodiment of the control method of an air conditioner according to the present invention based on the first embodiment, after the step S10, the method further includes the following steps:
step S40, when the current superheat degree is larger than or equal to the first threshold value, obtaining a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located, wherein the second target operation parameter meets the preset energy efficiency condition;
and step S50, operating according to the second target operating parameter.
In this embodiment, the processor compares the current superheat degree with a first threshold value, and when the current superheat degree is greater than or equal to the first threshold value, obtains a current indoor environment temperature and a current outdoor environment temperature of an environment where the air conditioner is located, and obtains a plurality of sets of corresponding operating parameters in the memory according to the obtained current indoor environment temperature and the obtained current outdoor environment temperature; when the preset energy efficiency condition is that the energy efficiency value is maximum, selecting the operation parameter with the highest energy efficiency value from the obtained multiple groups of operation parameters as the current second target operation parameter of the air conditioner; when the preset energy efficiency condition is that the energy efficiency value is larger than a preset threshold value, comparing the preset threshold value with the energy efficiency values corresponding to the obtained multiple groups of operation parameters one by one, and when the energy efficiency value is detected to be larger than the preset threshold value, taking the operation parameters corresponding to the energy efficiency values larger than the preset threshold value as current second target operation parameters of the air conditioner; and then controlling the component corresponding to the second target operation parameter in the air conditioner to operate according to the second target operation parameter.
In the technical scheme disclosed in this embodiment, the operation parameter with the maximum energy efficiency value is obtained as the second target operation parameter, and then the corresponding component in the air conditioner is controlled to operate according to the second target operation parameter, so that the air conditioner operates according to the operation parameter with the maximum energy efficiency, and an effect of reducing energy consumption of the air conditioner is achieved.
Alternatively, referring to fig. 4, in a third embodiment of the control method of an air conditioner according to the present invention based on the second embodiment, the processor may execute step S10 periodically, and then the step S40 further includes the following steps:
step S401, when the current superheat degree is larger than or equal to the first threshold value, judging whether the currently acquired superheat degree is the superheat degree acquired for the first time;
step S402, when the degree of superheat obtained currently is obtained for the first time, executing the step of obtaining the second target operation parameter according to the temperature parameter of the environment where the air conditioner is located;
step S403, when the currently acquired superheat degree is not the first acquired superheat degree, judging whether the superheat degree is larger than a second threshold value, wherein the second threshold value is larger than the first threshold value;
and S404, when the superheat degree is larger than the second threshold value, executing the step of obtaining the second target operation parameter according to the temperature parameter of the environment where the air conditioner is located.
In this embodiment, when the current superheat degree is greater than or equal to the first threshold, the processor determines whether the current obtained superheat degree is the first obtained superheat degree, that is, whether the processor executes step S10 for the first time, and when the current obtained superheat degree is determined to obtain the first obtained superheat degree, obtains the current indoor environment temperature and the current outdoor environment temperature of the environment where the air conditioner is located, and obtains multiple sets of corresponding operating parameters in the memory according to the obtained current indoor environment temperature and the current outdoor environment temperature, then selects an operating parameter with the highest effective value from the obtained multiple sets of operating parameters as the current target operating parameter of the air conditioner, and then controls a component corresponding to the second target operating parameter in the air conditioner to operate according to the second target operating parameter.
When the obtained superheat degree is judged to be the superheat degree which is not obtained for the first time, the processor compares the current superheat degree with a second threshold value, obtains the current indoor environment temperature and the current outdoor environment temperature of the environment where the air conditioner is located when the current superheat degree is larger than the second threshold value, and obtains multiple corresponding sets of operation parameters in the storage according to the obtained current indoor environment temperature and the obtained current outdoor environment temperature; when the preset energy efficiency condition is that the energy efficiency value is maximum, selecting the operation parameter with the highest energy efficiency value from the obtained multiple groups of operation parameters as the current second target operation parameter of the air conditioner; when the preset energy efficiency condition is that the energy efficiency value is larger than a preset threshold value, comparing the preset threshold value with the energy efficiency values corresponding to the obtained multiple groups of operation parameters one by one, and when the energy efficiency value is detected to be larger than the preset threshold value, taking the operation parameters corresponding to the energy efficiency values larger than the preset threshold value as current second target operation parameters of the air conditioner; and then controlling the component corresponding to the second target operation parameter in the air conditioner to operate according to the second target operation parameter.
Optionally, after the step S403, the method further includes the following steps:
step S405, when the superheat degree is smaller than or equal to the second threshold value, determining an obtaining mode for obtaining the target operation parameter at the last time;
step S406, acquiring a third target operation parameter according to the last acquiring mode and the temperature parameter of the environment where the air conditioner is located, wherein the third target operation parameter meets the preset energy efficiency condition;
and step S407, operating according to the third target operating parameter.
In this embodiment, when the current superheat degree is less than or equal to the second threshold, the processor determines an acquisition mode when the target operation parameter is acquired last time, then acquires the current indoor environment temperature and the current outdoor environment temperature of the environment where the air conditioner is located, and acquires a plurality of sets of corresponding operation parameters in the memory according to the acquired current indoor environment temperature, the current outdoor environment temperature and the last acquisition mode; when the preset energy efficiency condition is that the energy efficiency value is maximum, selecting the operation parameter with the highest energy efficiency value from the obtained multiple groups of operation parameters as the current third target operation parameter of the air conditioner; when the preset energy efficiency condition is that the energy efficiency value is larger than a preset threshold value, comparing the preset threshold value with the energy efficiency values corresponding to the obtained multiple groups of operation parameters one by one, and when the energy efficiency value is detected to be larger than the preset threshold value, taking the operation parameters corresponding to the energy efficiency values larger than the preset threshold value as current third target operation parameters of the air conditioner; and then controlling the component corresponding to the third target operation parameter in the air conditioner to operate according to the third target operation parameter.
Optionally, the step S406 further includes the steps of:
s4061, when the last obtaining mode is to obtain a target operation parameter according to the current opening degree of the electronic expansion valve and the temperature parameter, obtaining a third target operation parameter according to the current temperature parameter of the environment where the air conditioner is located and the last obtained opening degree of the electronic expansion valve, wherein the third target operation parameter comprises the target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the last obtained opening degree of the electronic expansion valve;
step S4062, when the last obtaining mode is to obtain the target operation parameter according to the temperature parameter, obtaining the third target operation parameter according to the temperature parameter of the environment where the air conditioner is located.
In this embodiment, the processor identifies an acquisition mode of last acquisition of the target operation parameter, and when the last acquisition mode is to acquire the target operation parameter according to the current opening degree and the temperature parameter of the electronic expansion valve, acquires the current indoor environment temperature and the current outdoor environment temperature of the environment where the air conditioner is located, and acquires a plurality of sets of corresponding operation parameters in the memory according to the acquired current indoor environment temperature, the current outdoor environment temperature and the last acquired opening degree of the electronic expansion valve; when the preset energy efficiency condition is that the energy efficiency value is maximum, selecting the operation parameter with the highest energy efficiency value from the obtained multiple groups of operation parameters as the current third target operation parameter of the air conditioner; when the preset energy efficiency condition is that the energy efficiency value is larger than the preset threshold value, comparing the preset threshold value with the energy efficiency values corresponding to the obtained multiple groups of operation parameters one by one, and when the energy efficiency value is detected to be larger than the preset threshold value, taking the operation parameters corresponding to the energy efficiency values larger than the preset threshold value as the current third target operation parameters of the air conditioner.
The processor acquires the current indoor environment temperature and the current outdoor environment temperature of the environment where the air conditioner is located when acquiring the target operation parameters according to the temperature parameters in the last acquisition mode, and acquires multiple corresponding sets of operation parameters in the memory according to the acquired current indoor environment temperature and the current outdoor environment temperature; when the preset energy efficiency condition is that the energy efficiency value is maximum, selecting the operation parameter with the highest energy efficiency value from the obtained multiple groups of operation parameters as the current third target operation parameter of the air conditioner; when the preset energy efficiency condition is that the energy efficiency value is larger than a preset threshold value, comparing the preset threshold value with the energy efficiency values corresponding to the obtained multiple groups of operation parameters one by one, and when the energy efficiency value is detected to be larger than the preset threshold value, taking the operation parameters corresponding to the energy efficiency values larger than the preset threshold value as the current third target operation parameters of the air conditioner.
In the technical scheme disclosed in this embodiment, by setting the protection interval, the third target operation parameter is obtained according to the last obtaining mode and the current temperature parameter when the current superheat degree is in the protection interval, so that the situation that the operation parameter of the air conditioner is repeatedly adjusted between the protection mechanism and the energy saving mechanism is avoided, and the operation stability of the air conditioner is improved.
Alternatively, based on the above embodiment, in a fourth embodiment of the control method of an air conditioner of the present invention, the step S20 further includes the steps of:
step S21, determining multiple sets of operation parameters according to the temperature parameters and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the temperature parameters and the operation parameters;
and step S22, determining an operation parameter which meets a target condition and has the highest energy efficiency value from the operation parameters as a first target operation parameter, wherein the target condition comprises that the target opening degree of the electronic expansion valve is smaller than or equal to the current opening degree.
In this embodiment, the preset mapping relationship is a mapping relationship between the temperature parameter and the operating parameter, different temperature parameters and different operating parameters are stored in a memory according to the preset mapping relationship, and each set of operating parameters records an effective value.
The processor determines a plurality of groups of temperature parameters which satisfy that the indoor environment temperature is equal to the current indoor environment temperature and the outdoor environment temperature is equal to the current outdoor environment temperature in the memory, and then acquires a plurality of corresponding groups of operation parameters according to a preset mapping relation and the plurality of groups of determined temperature parameters, wherein one group of temperature parameters corresponds to one group of operation parameters; and then determining the operation parameters which satisfy that the target opening degree of the electronic expansion valve is smaller than or equal to the current opening degree in the obtained multiple groups of operation parameters, and taking the operation parameters as first target operation parameters.
When multiple sets of operation parameters meeting the requirement that the target opening degree of the electronic expansion valve is smaller than or equal to the current opening degree exist, the energy efficiency value corresponding to the operation parameter meeting the requirement that the target opening degree of the electronic expansion valve is smaller than or equal to the current opening degree can be obtained, each obtained energy efficiency value is compared, and then the operation parameter with the largest energy efficiency value is used as the target operation parameter.
Similarly, in step S4061, the processor may also determine multiple sets of temperature parameters in the memory, which satisfy that the indoor environment temperature is equal to the current indoor environment temperature and the outdoor environment temperature is equal to the current outdoor environment temperature, and then obtain corresponding multiple sets of operating parameters according to the preset mapping relationship and the determined multiple sets of temperature parameters, where one set of temperature parameters corresponds to one set of operating parameters; and then acquiring the opening degree of the electronic expansion valve in the last acquisition mode, determining the operation parameters which meet the condition that the target opening degree of the electronic expansion valve is less than or equal to the opening degree of the electronic expansion valve in the plurality of groups of acquired operation parameters, and taking the operation parameters as first target operation parameters.
When multiple sets of operation parameters meeting the condition that the target opening degree of the electronic expansion valve is smaller than or equal to the opening degree of the electronic expansion valve exist, the energy efficiency value corresponding to each set of operation parameters meeting the condition that the target opening degree of the electronic expansion valve is smaller than or equal to the opening degree of the electronic expansion valve can be obtained, each obtained energy efficiency value is compared, and then the operation parameter with the largest energy efficiency value serves as a third target operation parameter.
The step S40 further includes the steps of:
step S408, determining a plurality of groups of operation parameters according to the temperature parameters and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the temperature parameters and the operation parameters;
step S409, determining an energy efficiency value corresponding to each group of operation parameters;
and step S410, determining the operation parameter with the maximum energy efficiency value as the second target operation parameter.
In this embodiment, the processor determines a plurality of sets of temperature parameters in the memory, which satisfy that the indoor environment temperature is equal to the current indoor environment temperature and the outdoor environment temperature is equal to the current outdoor environment temperature, and then acquires a plurality of sets of corresponding operating parameters according to a preset mapping relationship and the determined plurality of sets of temperature parameters, wherein one set of temperature parameters corresponds to one set of operating parameters, then acquires an energy efficiency value corresponding to each set of operating parameters, compares each acquired energy efficiency value, and then takes the operating parameter with the largest energy efficiency value as the second target operating parameter.
Similarly, in step S4062, the processor may also determine multiple sets of temperature parameters in the memory, where the indoor environment temperature is equal to the current indoor environment temperature and the outdoor environment temperature is equal to the current outdoor environment temperature, and then obtain corresponding multiple sets of operating parameters according to a preset mapping relationship and the determined multiple sets of temperature parameters, where one set of temperature parameters corresponds to one set of operating parameters, then obtain an energy efficiency value corresponding to each set of operating parameters, compare each obtained energy efficiency value, and then use the operating parameter with the largest energy efficiency value as the third target operating parameter.
In the technical scheme disclosed in this embodiment, by presetting the mapping relationship between the temperature parameters and the operating parameters, when the processor acquires the temperature parameters or part of the operating parameters, the operating parameters meeting the conditions can be acquired according to the preset mapping relationship, so that the condition that the remaining operating parameters are calculated according to the temperature parameters or part of the operating parameters is avoided, and the operating speed of the air conditioner is increased.
Alternatively, based on the second embodiment, in a fifth embodiment of the control method of an air conditioner of the present invention, the step S20 further includes the steps of:
step S23, inputting the temperature parameters and target conditions into a neural network model, wherein the target conditions comprise that the target opening degree of the electronic expansion valve is smaller than or equal to the current opening degree of the electronic expansion valve;
step S24, acquiring the first target operation parameter output by the neural network model;
the step S40 further includes the steps of:
step S411, inputting the temperature parameter into the neural network model;
and step S412, acquiring the second target operation parameter output by the neural network model.
In this embodiment, the processor may first obtain different test operation parameters of the air conditioner at different temperature parameters, and simultaneously obtain an energy efficiency value corresponding to each test operation parameter, and then train the neural network with the different temperature parameters, the different test operation parameters, and the corresponding energy efficiency values of the air conditioner to obtain a neural network model, and store the obtained neural network model in the memory.
The processor may input a target indoor environment temperature equal to the current indoor environment temperature, a target outdoor environment temperature equal to the current outdoor environment temperature, and a target opening degree of the electronic expansion valve less than or equal to the current opening degree of the electronic expansion valve into the neural network model to output target operation parameters according to the above conditions through the neural network model, and receive the target operation parameters output by the neural network model.
The processor may also input a target indoor environment temperature equal to the current indoor environment temperature and a target outdoor environment temperature equal to the current outdoor environment temperature into the neural network model to output target operation parameters according to the above conditions through the neural network model, and receive the target operation parameters output by the neural network model.
In the technical scheme disclosed in this embodiment, the accuracy of obtaining the target operation parameters is improved by training the neural network model, inputting the temperature parameters and the target conditions into the neural network model, and then obtaining the target operation parameters output by the neural network model.
Alternatively, based on the first embodiment, in a sixth embodiment of the control method of an air conditioner of the present invention, the degree of superheat may include at least one of a suction degree of superheat, which is a difference between a suction temperature of the compressor and a saturation temperature corresponding to a suction pressure of the compressor, and a discharge degree of superheat, which is a difference between a discharge temperature of the compressor and a saturation temperature corresponding to a discharge pressure of the compressor, wherein the pressure value and the corresponding saturation temperature may be stored in association in the memory.
Specifically, when the degree of superheat is a suction degree of superheat, the processor may obtain a current suction pressure of the compressor and a suction temperature of the compressor, obtain a saturation temperature corresponding to the current suction pressure in the memory, and then obtain a difference between the suction temperature of the compressor and the saturation temperature corresponding to the suction pressure of the compressor, and use the difference as the current suction degree of superheat of the air conditioner.
Specifically, when the superheat degree is the exhaust superheat degree, the processor may obtain a current exhaust pressure of the compressor and an exhaust temperature of the compressor, obtain a saturation temperature corresponding to the current exhaust pressure in the memory, obtain a difference value between the exhaust temperature of the compressor and the saturation temperature corresponding to the exhaust pressure of the compressor, and use the difference value as the current exhaust superheat degree of the air conditioner; the processor can also obtain the current operation mode of the air conditioner, obtain the current exhaust temperature of the compressor and the current coil middle temperature of the outdoor heat exchanger when the current operation mode of the air conditioner is a refrigeration mode, obtain the difference value between the current exhaust temperature of the compressor and the current coil middle temperature of the outdoor heat exchanger, and take the difference value as the current exhaust superheat degree of the air conditioner; when the current operation mode of the air conditioner is a heating mode, the processor acquires the current exhaust temperature of the compressor and the current coil middle temperature of the indoor heat exchanger, acquires the difference value between the current exhaust temperature of the compressor and the current coil middle temperature of the indoor heat exchanger, and takes the difference value as the current exhaust superheat degree of the air conditioner.
In the technical scheme disclosed in the embodiment, the superheat degree of the compressor is divided into the suction superheat degree and the exhaust superheat degree, so that whether damage hidden dangers exist in the compressor or not can be detected by the processor according to the suction superheat degree and the exhaust superheat degree, when any superheat degree is smaller than a first threshold value, the damage hidden dangers exist in the compressor is judged, then the air conditioner is controlled to operate according to the operation parameters meeting the reliability conditions, and therefore the operation reliability of the air conditioner is improved.
In addition, an embodiment of the present invention further provides an air conditioner, where the air conditioner includes a memory, a processor, and a control program of the air conditioner that is stored in the memory and is capable of running on the processor, and when the control program of the air conditioner is executed by the processor, the steps of the control method of the air conditioner according to the above embodiments are implemented.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where a control program of an air conditioner is stored, and the control program of the air conditioner, when executed by a processor, implements the steps of the control method of the air conditioner according to the above embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or system in which the element is included.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. 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 (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for causing an air conditioner to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A control method of an air conditioner is characterized by comprising the following steps:
acquiring the current superheat degree of the air conditioner at regular time;
when the current superheat degree is smaller than a first threshold value, obtaining a first target operation parameter according to a temperature parameter of an environment where the air conditioner is located and a current opening degree of an electronic expansion valve of the air conditioner, wherein the first target operation parameter meets a preset energy efficiency condition, the first target operation parameter comprises a target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the current opening degree and operates according to the first target operation parameter; or,
when the current superheat degree is larger than or equal to the first threshold value, judging whether the currently acquired superheat degree is the superheat degree acquired for the first time, when the currently acquired superheat degree is the superheat degree acquired for the first time, acquiring a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located, wherein the second target operation parameter meets the preset energy efficiency condition, and operating according to the second target operation parameter, or judging whether the superheat degree is larger than a second threshold value when the currently acquired superheat degree is not the superheat degree acquired for the first time, wherein the second threshold value is larger than the first threshold value, and acquiring a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located when the superheat degree is larger than the second threshold value, and operating according to the second target operation parameter.
2. The control method of an air conditioner according to claim 1, wherein after the step of determining whether the degree of superheat is greater than a second threshold value, further comprising:
when the superheat degree is smaller than or equal to the second threshold value, determining the acquisition mode of the last acquired target operation parameter;
acquiring a third target operation parameter according to the last acquiring mode and the temperature parameter of the environment where the air conditioner is located, wherein the third target operation parameter meets the preset energy efficiency condition;
and operating according to the third target operating parameter.
3. The method as claimed in claim 2, wherein the step of obtaining a third target operation parameter according to the last obtaining manner and the temperature parameter of the environment where the air conditioner is located comprises:
when the last obtaining mode is to obtain target operation parameters according to the current opening degree of the electronic expansion valve and the temperature parameters, obtaining third target operation parameters according to the current temperature parameters of the environment where the air conditioner is located and the last obtained opening degree of the electronic expansion valve, wherein the third target operation parameters comprise the target opening degree of the electronic expansion valve, and the target opening degree is smaller than or equal to the last obtained opening degree of the electronic expansion valve;
and when the last acquisition mode is to acquire the target operation parameter according to the temperature parameter, acquiring the third target operation parameter according to the temperature parameter of the environment where the air conditioner is located.
4. The method as claimed in claim 1, wherein the step of obtaining the first target operation parameter according to the temperature parameter of the environment where the air conditioner is located and the current opening degree of the electronic expansion valve of the air conditioner further comprises:
determining multiple groups of operation parameters according to the temperature parameters and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the temperature parameters and the operation parameters;
and determining an operation parameter which meets a target condition and has the highest energy efficiency value as a first target operation parameter in the operation parameters, wherein the target condition comprises that the target opening degree of the electronic expansion valve is smaller than or equal to the current opening degree.
5. The method for controlling an air conditioner according to claim 1, wherein the step of obtaining a second target operation parameter based on the temperature parameter of the environment in which the air conditioner is located comprises:
determining multiple groups of operation parameters according to the temperature parameters and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the temperature parameters and the operation parameters;
determining an energy efficiency value corresponding to each group of the operation parameters;
and determining the operation parameter with the maximum energy efficiency value as the second target operation parameter.
6. The method as claimed in claim 1, wherein the step of obtaining the first target operation parameter according to the temperature parameter of the environment where the air conditioner is located and the current opening degree of the electronic expansion valve of the air conditioner further comprises:
inputting the temperature parameter and a target condition into a neural network model, wherein the target condition comprises that a target opening degree of the electronic expansion valve is smaller than or equal to a current opening degree of the electronic expansion valve;
acquiring the first target operation parameter output by the neural network model;
the step of obtaining a second target operation parameter according to the temperature parameter of the environment where the air conditioner is located comprises the following steps:
inputting the temperature parameter into the neural network model;
and acquiring the second target operation parameter output by the neural network model.
7. The control method of an air conditioner according to claim 1, wherein said degree of superheat includes at least one of a suction degree of superheat obtained from a current compressor suction pressure and a current compressor suction temperature, and a discharge degree of superheat obtained from a current compressor discharge pressure and a current compressor discharge temperature, or a current target heat exchanger coil mid-coil temperature and a current compressor discharge temperature.
8. An air conditioner, characterized in that the air conditioner comprises: a memory, a processor 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 steps of the control method of the air conditioner as claimed in any one of claims 1 to 7 when executed by the processor.
9. A computer-readable storage medium, characterized in that a control program of an air conditioner is stored thereon, which when executed by a processor implements the steps of the control method of the air conditioner according to any one of claims 1 to 7.
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