CN114110974B - Control method of air conditioner and air conditioner - Google Patents
Control method of air conditioner and air conditioner Download PDFInfo
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- CN114110974B CN114110974B CN202111327345.4A CN202111327345A CN114110974B CN 114110974 B CN114110974 B CN 114110974B CN 202111327345 A CN202111327345 A CN 202111327345A CN 114110974 B CN114110974 B CN 114110974B
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- 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
- F24F2110/20—Humidity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner and the air conditioner, wherein the control method of the air conditioner comprises the following steps: acquiring indoor ambient temperature and humidity values of an air conditioner in refrigerating operation; calculating the temperature difference delta T between the current indoor environment temperature and the set temperature and the humidity difference delta R between the current indoor environment humidity and the set humidity; when the temperature difference delta T is within a first preset range and the humidity difference delta R is within a second preset range, entering a temperature and humidity precise control mode; under the temperature and humidity precise control mode, determining the frequency variation delta F of the compressor to be adjusted according to the interval ranges of the temperature difference delta T and the humidity difference delta R, and adjusting the frequency F of the compressor according to the determined frequency variation delta F of the compressor 0 . The control method can accurately control the temperature and the humidity and improve the comfort of the environment.
Description
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner and the air conditioner
Background
With the continuous improvement of living standard, people have higher and higher requirements on the comfort of the household air conditioner, and the comfort mainly refers to the reasonable combination of temperature, humidity and wind speed. The traditional dehumidification function is mainly that when refrigerating, the surface temperature of the indoor heat exchanger is lower than the environmental dew point temperature, and water vapor in the air is condensed when meeting cold on the surface of the heat exchanger, so that the moisture in the air is continuously separated out, and the purpose of dehumidification is achieved. But at the in-process of refrigeration or dehumidification, moisture in the air can constantly be appeared on the one hand, leads to the ambient humidity to reduce excessively, causes the environmental comfort relatively poor, and on the other hand, dehumidification and cooling can not compromise simultaneously, often appear the condition that temperature or humidity do not move in the settlement range to influence the travelling comfort.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a control method of an air conditioner and the air conditioner, wherein the control method of the air conditioner can accurately control the temperature and the humidity so as to improve the comfort of the environment.
In order to solve the technical problem, the invention provides a control method of an air conditioner, which comprises the following steps
Acquiring indoor environment temperature and humidity values of an air conditioner in refrigerating operation;
calculating the temperature difference delta T between the current indoor environment temperature and the set temperature and the humidity difference delta R between the current indoor environment humidity and the set humidity;
when the temperature difference delta T is within a first preset range and the humidity difference delta R is within a second preset range, entering a temperature and humidity precise control mode;
under the temperature and humidity precise control mode, determining the frequency variation delta F of the compressor to be regulated according to the interval ranges of the temperature difference delta T and the humidity difference delta R;
adjusting the compressor frequency F according to the determined compressor frequency variation DeltaF 0 。
Further optionally, the frequency variation Δ F of the compressor to be adjusted is determined according to the interval ranges in which the temperature difference Δ T and the humidity difference Δ R are respectively located, and the frequency F of the compressor is adjusted according to the determined frequency variation Δ F of the compressor 0 Comprises that
Determining the current temperature difference delta T and the compressor frequency variation delta F corresponding to the current humidity difference delta R according to the preset corresponding relation of the preset temperature difference-humidity difference-compressor frequency variation;
calculating an adjusted compressor frequency F, F = F 0 + Δ F; when the adjusted compressor frequency is more than 0 and less than F Minimum size ，F Minimum size For the minimum threshold value of the compressor frequency, the compressor is controlled according to the minimum frequency F Minimum size of Running; if the adjusted compressor frequency F is less than 0, the process is stopped; if the adjusted compressor frequency F is more than or equal to F Minimum size According to the toneThe finished compressor frequency F is running.
The invention also provides a control method of the air conditioner, which comprises the following steps
Acquiring indoor ambient temperature and humidity values of an air conditioner in refrigerating operation;
calculating the temperature difference delta T between the current indoor environment temperature and the set temperature and the humidity difference delta R between the current indoor environment humidity and the set humidity;
when the temperature difference delta T is within a first preset range and the humidity difference delta R is within a second preset range, entering a temperature and humidity precise control mode;
in the temperature and humidity precise control mode, calculating a temperature difference change rate delta T/delta T, determining a compressor frequency change amount delta F to be adjusted according to the interval ranges in which the temperature difference change rate delta T/delta T and the humidity difference delta R are respectively positioned, and adjusting the compressor frequency F according to the determined compressor frequency change amount delta F 0 。
The invention also provides a control method of the air conditioner, which comprises the following steps:
acquiring indoor ambient temperature and humidity values of an air conditioner in refrigerating operation;
calculating the temperature difference change rate delta T/delta T of the current indoor environment temperature and the set temperature and the humidity difference delta R of the current indoor environment humidity and the set humidity;
when the temperature difference change rate delta T/delta T is within a third preset range and the humidity difference delta R is within a fourth preset range, entering a temperature and humidity precise control mode;
under the temperature and humidity precise control mode, determining the frequency variation delta F of the compressor to be regulated according to the interval ranges of the temperature difference change rate delta T/delta T and the humidity difference delta R respectively;
adjusting the compressor frequency F according to the determined compressor frequency variation DeltaF 0 。
Further optionally, the frequency variation Δ F of the compressor to be adjusted is determined according to the interval ranges in which the temperature difference variation rate Δ T/Δ T and the humidity difference Δ R are respectively located, and the frequency F of the compressor is adjusted according to the determined frequency variation Δ F of the compressor 0 Comprises that
Determining the current temperature difference change rate delta T/delta T and the compressor frequency change quantity delta F corresponding to the current humidity difference delta R according to the preset corresponding relation of the preset temperature difference change rate-humidity difference-compressor frequency change quantity;
calculating the adjusted compressor frequency F to satisfy F = F 0 + Δ F; when the adjusted compressor frequency is more than 0 and less than F Minimum size Then controlling the compressor to follow the minimum frequency F Minimum size Running; if the adjusted compressor frequency F is less than 0, the process is stopped; if the adjusted compressor frequency F is more than or equal to F Minimum size of Then it is run at the adjusted compressor frequency F.
Further optionally, in the temperature and humidity precise control mode, the operation wind level of the inner fan is adjusted according to the humidity difference delta R.
Further optionally, the adjusting the operating wind level of the inner fan according to the humidity difference Δ R includes
When the delta R is larger than 0, if the current wind gear of the inner fan is a low wind gear, keeping the current wind gear to move; if the current wind gear of the inner fan is higher than the lowest wind gear, controlling the inner fan to reduce the wind gear to operate;
when the delta R =0, keeping the current wind gear running;
when the delta R is less than 0, if the current wind gear of the inner fan is the highest wind gear, keeping the current wind gear to move; and if the current wind gear of the inner fan is lower than the highest wind gear, controlling the inner fan to improve the wind gear operation.
Further optionally, the temperature difference Δ T in the first preset range satisfies the following condition: the first set temperature difference is less than delta T and less than the second set temperature difference; the control method further comprises the following steps:
when the temperature difference Δ T satisfies: when the delta T is larger than or equal to the second set temperature difference, the compressor is controlled to continue to operate according to the current control logic;
when the temperature difference Δ T satisfies: and when the delta T is less than or equal to the first set temperature difference, controlling the compressor to stop.
Further optionally, the humidity difference Δ R satisfies the following condition within a second preset range: the first set humidity difference is less than or equal to delta R and less than or equal to the second set humidity difference, and the control method also comprises
When the temperature difference Δ T is within a first preset range, when the humidity difference Δ R satisfies: and when the delta R is larger than the second set humidity difference or the delta R is smaller than the first set humidity difference, controlling the compressor to continuously operate according to the current control logic.
The present invention also proposes a control device of an air conditioner, comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions, the one or more processors being configured to implement the method according to any one of the above when the one or more processors execute the program instructions.
The invention also proposes a non-transitory computer-readable storage medium on which program instructions are stored, which program instructions, when executed by one or more processors, are adapted to implement the method according to any of the above.
The invention also provides an air conditioner which adopts the method of any one of the above items or comprises the control device or is provided with the non-transitory computer readable storage medium.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the control method of the air conditioner and the air conditioner can accurately control the temperature and the humidity, so that the temperature and the humidity fluctuate within a set range in a small amplitude, and the comfort of the environment is improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention to the proper form disclosed herein. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: is a control flow diagram of an embodiment of the invention;
FIG. 2: the temperature and humidity precise control judgment flow chart is provided by the embodiment of the invention;
FIG. 3: the temperature and humidity precise control regulation flow chart is provided by the embodiment of the invention;
FIG. 4: the air conditioner provided by the embodiment of the invention adopts a first temperature and humidity accurate control mode to set an operation curve chart of 35% of relative humidity in an environment with indoor temperature and relative humidity of 30 ℃ and 70% respectively, wherein the set temperature is 25 ℃;
FIG. 5: the air conditioner provided by the embodiment of the invention adopts a first temperature and humidity accurate control mode to set an operation curve chart of relative humidity of 45% in an environment with indoor temperature and relative humidity of 30 ℃ and 70% respectively, wherein the set temperature is 25 ℃;
FIG. 6: the air conditioner provided by the embodiment of the invention adopts a first temperature and humidity accurate control mode to set an operation curve chart of 55% of relative humidity in an environment with indoor temperature and relative humidity of 30 ℃ and 70% respectively, wherein the set temperature is 25 ℃;
FIG. 7: the air conditioner provided by the embodiment of the invention adopts a second temperature and humidity accurate control mode to set an operation curve chart of 35% of relative humidity in an environment with indoor temperature and relative humidity of 30 ℃ and 70% respectively, wherein the set temperature is 18 ℃;
FIG. 8: the air conditioner of the embodiment of the invention adopts a second temperature and humidity accurate control mode to set an operation curve chart of 45% of relative humidity in an environment with indoor temperature and relative humidity of 30 ℃ and 70% respectively at a set temperature of 18 ℃;
FIG. 9: the air conditioner provided by the embodiment of the invention adopts a second temperature and humidity accurate control mode to set an operation curve chart of 55% of relative humidity in an environment with indoor temperature and relative humidity of 30 ℃ and 70% respectively, wherein the set temperature is 18 ℃.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it for those skilled in the art by reference to specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
To current air conditioner at the in-process of refrigeration or dehumidification, moisture in the air can constantly be appeared, lead to the ambient humidity excessively to reduce, cause the environmental comfort relatively poor, and dehumidification and cooling can not compromise simultaneously, the condition that temperature or humidity do not move in setting for the within range often appears, thereby influence the problem of travelling comfort, this embodiment has proposed one kind and can carry out accurate control to temperature and humidity, make it undulant at the small amplitude of setting for the within range, thereby improve the control method of the air conditioner of the travelling comfort of environment.
The control method of the air conditioner of the present embodiment is a control flowchart shown in fig. 1, and includes steps S1 to S4 (or S4'), in which:
s1, acquiring indoor environment temperature and humidity values of an air conditioner in refrigerating operation;
the indoor unit of the air conditioner is provided with a temperature sensor and a humidity sensor which are respectively used for detecting the temperature and the humidity of the indoor environment. In some embodiments, the temperature and humidity of the indoor environment may be continuously obtained after the air conditioner is started, and in other embodiments, the real-time temperature and humidity of the indoor environment may be obtained at regular intervals, for example, 1 second, after the air conditioner is started.
S2, calculating a temperature difference delta T between the current indoor environment temperature and the set temperature and a humidity difference delta R between the current indoor environment humidity and the set humidity; the temperature difference Δ T = current indoor ambient temperature-set temperature, and the humidity difference Δ R = current indoor ambient humidity-set humidity.
S3, when the temperature difference delta T is within a first preset range and the humidity difference delta R is within a second preset range, entering a temperature and humidity precise control mode;
in this embodiment, when the temperature difference Δ T satisfies the first preset range, it indicates that the indoor ambient temperature is close to the user set temperature, and when the humidity difference Δ R is within the second preset range, it indicates that the indoor ambient humidity is close to the user set humidity. In the process of further adjusting the temperature or the humidity, on the one hand, moisture in the air can be continuously separated out, so that the environmental humidity is excessively reduced, on the other hand, dehumidification and cooling can not be simultaneously considered, and the condition that the temperature or the humidity is not operated within a set range often appears, so that the comfort is influenced. Consequently, in order to guarantee indoor environment humidity's travelling comfort, this embodiment carries out accurate control through getting into humiture accurate control mode to temperature and humidity, makes it undulant at the small-amplitude of settlement within range to improve the travelling comfort of environment.
In the accurate control mode of the temperature and humidity of this embodiment, the temperature and humidity can be accurately controlled by adopting the following two control modes (S4, S4'), wherein the first control mode is:
s4, in the temperature and humidity precise control mode, determining the frequency variation delta F of the compressor to be adjusted according to the interval ranges of the temperature difference delta T and the humidity difference delta R, and adjusting the frequency F of the compressor according to the determined frequency variation delta F of the compressor 0 。
Specifically, step S4 includes S41 to S43, where:
s41, determining the current temperature difference delta T and the compressor frequency variation delta F corresponding to the current humidity difference delta R according to the preset corresponding relation of the preset temperature difference-humidity difference-compressor frequency variation;
s42, calculating the adjusted compressor frequency F, and satisfying F = F 0 + Δ F; when the adjusted compressor frequency is more than 0 and less than F Minimum size of Then controlling the compressor to follow the minimum frequency F Minimum size Running; if the adjusted compressor frequency F is less than 0, the compressor is stopped; if the adjusted compressor frequency F is more than or equal to F Minimum size Then it is run at the adjusted compressor frequency F.
In this embodiment, according to a preset corresponding relationship between a temperature difference range, a humidity difference range and a frequency variation Δ F of a compressor, a temperature difference range where a current temperature difference Δ T is located in the preset corresponding relationship and a humidity difference range where a current humidity difference Δ R is located in the preset corresponding relationship are determined; and determining the compressor frequency variation delta F corresponding to the current temperature difference delta T and the current humidity difference delta R according to the compressor frequency variation delta F corresponding to the temperature difference range and the humidity difference range in the preset corresponding relation.
In a specific embodiment, the preset correspondence relationship between the temperature difference range, the humidity difference range, and the compressor frequency variation Δ F is a correspondence relationship shown in table one, after the temperature difference Δ T and the humidity difference Δ R are determined, the corresponding compressor frequency variation Δ F can be found according to table one, and the adjusted compressor frequency is obtained by adding the compressor frequency variation Δ F to the current compressor frequency.
Table one:
the second control mode of the precision control mode of the temperature and humidity of this embodiment is as follows:
s4' in the temperature and humidity precise control mode, calculating a temperature difference change rate delta T/delta T, determining a compressor frequency change amount delta F to be adjusted according to the interval ranges in which the temperature difference change rate delta T/delta T and the humidity difference delta R are respectively positioned, and adjusting the compressor frequency F according to the determined compressor frequency change amount delta F 0 。
Further optionally, step S4' includes S41' to S42', wherein:
s41', according to a preset corresponding relation of a preset temperature difference change rate-humidity difference-compressor frequency change amount, determining a current temperature difference change rate delta T/delta T and a compressor frequency change amount delta F corresponding to a current humidity difference delta R;
s42', calculating the adjusted compressor frequency F, and satisfying F = F 0 + Δ F; when the adjusted compressor frequency is more than 0 and less than F Minimum size Then controlling the compressor to follow the minimum frequency F Minimum size Running; if the adjusted compressor frequency F is less than 0, the process is stopped; if the adjusted compressor frequency F is more than or equal to F Minimum size of Then it is run at the adjusted compressor frequency F.
According to a preset corresponding relation of a temperature difference change rate interval range-humidity difference range-compressor frequency variation, determining a temperature difference change rate interval range in which the current temperature difference change rate is located in the preset corresponding relation and a humidity difference interval range in which the current humidity difference delta R is located in the preset corresponding relation; determining the compressor frequency variation delta F corresponding to the current temperature difference change rate and the current humidity difference delta R according to the compressor frequency variation delta F simultaneously corresponding to the determined temperature difference change rate interval range and the determined humidity difference interval range in the preset corresponding relation, namely F = F 0 +ΔF，F 0 To correct the pre-compressor frequency, F is the corrected compressor frequency. Alternatively, the rate of change in temperature difference is the time required for each 1 ℃ change in temperature.
In a specific embodiment, the preset correspondence between the temperature difference change rate interval range-humidity difference range-compressor frequency change amount is the correspondence shown in table two, after the temperature difference change rate and the humidity difference are determined, the corresponding compressor frequency change amount Δ F can be found according to table two, and the compressor frequency change amount Δ F is added on the basis of the current compressor frequency to obtain the adjusted compressor frequency, i.e., F = F 0 +ΔF，F 0 To correct the pre-compressor frequency, F is the corrected compressor frequency.
A second table:
further optionally, as shown in the flowchart in fig. 3, when the temperature difference Δ T is within a first preset range and the humidity difference Δ R is within a second preset range, the operating damper of the inner fan is further adjusted according to the size of the humidity difference Δ R.
Specifically, when the delta R is larger than 0, if the current wind gear of the inner fan is a low wind gear, the current wind gear is kept to move; if the current wind gear of the inner fan is higher than the lowest wind gear, controlling the inner fan to reduce the wind gear to operate;
when the delta R =0, keeping the current wind gear running;
when the delta R is less than 0, if the current wind gear of the inner fan is the highest wind gear, keeping the current wind gear to move; and if the current wind gear of the inner fan is lower than the highest wind gear, controlling the inner fan to improve the wind gear operation.
In this embodiment, when Δ R =0, it indicates that the current indoor humidity reaches the humidity set by the user, and it is only necessary to keep the current damper running, when Δ R is less than 0, it indicates that the current humidity is less than the set humidity, and the damper needs to be increased to reduce the dehumidification amount, and when Δ R is greater than 0, the current humidity of the description is greater than the set humidity, and the damper needs to be decreased to increase the dehumidification amount. The dehumidification amount of the low wind gear is larger than that of the medium wind gear. In one embodiment, when Δ R > 0, if the current inner fan is set to low, the low wind operation is continued, and if the current middle wind is high, the low wind operation is shifted. When Δ R =0, the current wind gear is kept unchanged. When the delta R is less than 0, if the current wind gear is the middle and high wind gear, the middle and high wind gear operation is continued unchanged, and if the current wind gear is the low wind gear, the high wind gear operation is switched to.
Further optionally, the temperature difference Δ T is within a first preset range, and the temperature difference Δ T satisfies: the first set temperature difference is less than delta T and less than the second set temperature difference. As shown in the control flowchart of fig. 2, when the temperature difference Δ T satisfies: when the delta T is larger than or equal to the second set temperature difference, the compressor is controlled to continue to operate according to the current control logic; when the temperature difference Δ T satisfies: and when the delta T is less than or equal to the first set temperature difference, controlling the compressor to stop.
In this embodiment, when the air conditioner is in cooling operation, when the temperature difference Δ T is greater than or equal to a second set temperature difference, for example, Δ T is greater than or equal to 2 ℃, it indicates that the indoor temperature is high, and the temperature difference has not yet been reached by the user, and the compressor needs to be controlled to continue temperature adjustment with the current control logic. When the temperature difference delta T is less than or equal to a first set temperature difference, for example, delta T is less than or equal to-2 ℃, the current indoor temperature is lower than the set temperature, and no refrigeration is needed, and the compressor is controlled to stop. When the temperature difference satisfies: the first set temperature difference is less than delta T and less than the second set temperature difference, for example, delta T is less than 2 ℃ below zero, which indicates that the current indoor environment temperature reaches the set temperature of the user, and the compressor needs to be regulated according to the indoor environment humidity condition.
Further optionally, the humidity difference Δ R satisfies the following conditions within a second preset range: the first set humidity difference is less than or equal to delta R and less than or equal to the second set humidity difference; as shown in the control flowchart of fig. 3, the control method includes: when the temperature difference Δ T is within a first preset range, if the humidity difference Δ R satisfies: and when the delta R is larger than the second set humidity difference or the delta R is smaller than the first set humidity difference, controlling the compressor to continuously operate according to the current control logic.
In this embodiment, when the air conditioner is in cooling operation, when the humidity difference Δ R > the second set humidity difference, for example, Δ R > 10%, it indicates that the indoor humidity is higher, and when the humidity difference Δ R < the first set humidity difference, for example, Δ R < -10%, it indicates that the indoor humidity is lower, and the humidity difference has not yet reached the humidity difference set by the user, the compressor needs to be controlled to continue humidity adjustment with the current control logic. When the temperature difference satisfies: the first set humidity difference is less than or equal to delta R and less than or equal to the second set humidity difference, for example, the delta R is less than or equal to 10% and more than or equal to 10%, the current indoor environment temperature reaches a second preset range, and at the moment, the temperature and humidity are accurately controlled in a temperature and humidity accurate control mode, so that the temperature and humidity fluctuate within the set range in a small amplitude, and the comfort of the environment is improved.
Fig. 4 to 6 are graphs showing how the indoor temperature and humidity are controlled by the accurate control mode of the embodiment of the present invention when the first method of the accurate temperature and humidity control mode is applied to the indoor environment with the indoor temperature and the indoor relative humidity of 30 ℃ and 70%, respectively, and the set temperature and the set relative humidity of 25 ℃ and 35% to 55%, respectively, and a certain thermal and humidity load is applied during the temperature and humidity control process, and the indoor temperature and humidity change with time after a period of operation. As can be seen from fig. 4 to 6, after a certain period of operation, both the temperature and the humidity can be stabilized within a small range around the set temperature and the set humidity, so that the comfort is improved.
Fig. 7 to 9 are graphs showing how the second method for accurately controlling temperature and humidity adjusts and controls the indoor temperature and humidity in an indoor environment with an indoor temperature and a relative humidity of 30 ℃ and 70% respectively, and how the temperature and the relative humidity are set to 18 ℃ and 35% -55% respectively, and how the indoor temperature and humidity change with time after a period of operation, when a certain thermal and humidity load is applied in the temperature and humidity control process, the accurate control mode according to the embodiment of the present invention is used. As can be seen from fig. 7 to 9, after a certain period of operation, both the temperature and the humidity can be stabilized within a small range around the set temperature and the set humidity, so that the comfort is improved.
The present embodiment further provides a control method of an air conditioner, where the control method includes steps A1 to A4, where:
a1, acquiring indoor environment temperature and humidity values of an air conditioner in refrigerating operation;
a2, calculating the temperature difference change rate delta T/delta T of the current indoor environment temperature and the set temperature and the humidity difference delta R of the current indoor environment humidity and the set humidity;
a3, when the temperature difference change rate delta T/delta T is within a third preset range and the humidity difference delta R is within a fourth preset range, entering a temperature and humidity precise control mode;
a4, under the temperature and humidity precise control mode, determining the frequency variation delta F of the compressor to be adjusted according to the interval ranges of the temperature difference change rate delta T/delta T and the humidity difference delta R; adjusting the compressor frequency F according to the determined compressor frequency variation DeltaF 0 。
Further optionally, step A4 includes a41 to a42, where:
a41, determining a current temperature difference change rate delta T/delta T and a compressor frequency change amount delta F corresponding to a current humidity difference delta R according to a preset corresponding relation of a preset temperature difference change rate-humidity difference-compressor frequency change amount;
a42, calculating the adjusted compressor frequency F, and satisfying F = F 0 + Δ F; when the adjusted compressor frequency is more than 0 and less than F Minimum size Then controlling the compressor to follow the minimum frequency F Minimum size Running; if the adjusted compressor frequency F is less than 0, the process is stopped; if the adjusted compressor frequency F is more than or equal to F Minimum size Then it is run at the adjusted compressor frequency F.
Determining a temperature difference change rate interval range in which the current temperature difference change rate is located in the preset corresponding relation and a humidity difference interval range in which the current humidity difference delta R is located in the preset corresponding relation according to the preset corresponding relation of the temperature difference change rate interval range-humidity difference range-compressor frequency change amount; determining the compressor frequency variation delta F corresponding to the current temperature difference change rate and the current humidity difference delta R according to the compressor frequency variation delta F simultaneously corresponding to the determined temperature difference change rate interval range and the determined humidity difference interval range in the preset corresponding relation, namely F = F 0 +ΔF，F 0 To correct the pre-compressor frequency, F is the corrected compressor frequency. Alternatively, the rate of change in temperature difference is the time required for each 1 ℃ change in temperature.
In a specific embodiment, the preset corresponding relationship between the temperature difference change rate interval range-humidity difference range-compressor frequency change amount is the corresponding relationship shown in table three, after the temperature difference change rate and the humidity difference are determined, the corresponding compressor frequency change amount Δ F can be found according to table three, and the compressor frequency change amount Δ F is added on the basis of the current compressor frequency to obtain the adjusted compressor frequency, that is, F = F 0 +ΔF，F 0 To correct the pre-compressor frequency, F is the corrected compressor frequency.
Table three:
further optionally, as shown in the flowchart in fig. 3, when the temperature difference Δ T is within a first preset range and the humidity difference Δ R is within a second preset range, the operating wind level of the inner fan is further adjusted according to the humidity difference Δ R.
Specifically, when the delta R is larger than 0, if the current wind gear of the inner fan is a low wind gear, the current wind gear is kept to move; if the current wind gear of the inner fan is higher than the lowest wind gear, controlling the inner fan to reduce the wind gear to operate; when the delta R =0, keeping the current wind gear running; when the delta R is less than 0, if the current wind gear of the inner fan is the highest wind gear, keeping the current wind gear to move; if the current wind gear of the inner fan is lower than the highest wind gear, controlling the inner fan to improve the wind gear operation;
in this embodiment, when Δ R =0, it indicates that the current indoor humidity reaches the humidity set by the user, and it is sufficient to keep the current damper operating, and when Δ R < 0, it indicates that the current humidity is less than the set humidity, and the damper needs to be increased to reduce the dehumidification amount, and when Δ R > 0, the current humidity of the description is greater than the set humidity, and the damper needs to be decreased to increase the dehumidification amount. The dehumidification amount of the low wind gear is larger than that of the medium wind gear. In one embodiment, when Δ R > 0, if the current inner fan is set to low, then low operation is continued unchanged, and if the current inner fan is at medium-high, then one or more shifts of operation are reduced based on the current wind. When Δ R =0, the current windshield is kept unchanged. When the delta R is less than 0, if the current wind gear is the highest wind gear, the operation of the highest wind gear is continued unchanged, and if the current wind gear is the low wind gear, the operation of one gear or a plurality of gears is increased on the basis of the current wind gear.
The present embodiment also proposes a control device of an air conditioner, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions, when the one or more processors execute the program instructions, the one or more processors are configured to implement the method according to any one of the above.
The present embodiments also propose a non-transitory computer-readable storage medium having stored thereon program instructions which, when executed by one or more processors, are used to implement the method according to any one of the above.
The present embodiment also proposes an air conditioner that employs the method of any one of the above, or includes the control device described above, or has the non-transitory computer-readable storage medium described above.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (10)
1. The control method of the air conditioner is characterized by comprising the following steps
Acquiring indoor ambient temperature and humidity values of an air conditioner in refrigerating operation;
calculating the temperature difference delta T between the current indoor environment temperature and the set temperature and the humidity difference delta R between the current indoor environment humidity and the set humidity;
when the temperature difference delta T is within a first preset range and the humidity difference delta R is within a second preset range, entering a temperature and humidity precise control mode;
under the temperature and humidity precise control mode, determining the frequency variation delta F of the compressor to be regulated according to the interval ranges of the temperature difference delta T and the humidity difference delta R;
adjusting the compressor frequency F according to the determined compressor frequency variation DeltaF 0 ；
Determining the frequency variation delta F of the compressor to be adjusted according to the interval ranges of the temperature difference delta T and the humidity difference delta R, and adjusting the frequency F of the compressor according to the determined frequency variation delta F of the compressor 0 The method comprises the following steps:
determining the current temperature difference delta T and the compressor frequency variation delta F corresponding to the current humidity difference delta R according to the preset corresponding relation of the preset temperature difference-humidity difference-compressor frequency variation;
calculating the adjusted compressor frequency F, F = F 0 + Δ F; when the adjusted compressor frequency is more than 0 and less than F Minimum size ，F Minimum size of For the minimum threshold value of the compressor frequency, the compressor is controlled according to the minimum frequency F Minimum size Running; if the adjusted compressor frequency F is less than 0, the process is stopped; if the adjusted compressor frequency F is more than or equal to F Minimum size Then operation is performed at the adjusted compressor frequency F.
2. A control method of an air conditioner is characterized by comprising the following steps
Acquiring indoor environment temperature and humidity values of an air conditioner in refrigerating operation;
calculating the temperature difference delta T between the current indoor environment temperature and the set temperature and the humidity difference delta R between the current indoor environment humidity and the set humidity;
when the temperature difference delta T is within a first preset range and the humidity difference delta R is within a second preset range, entering a temperature and humidity precise control mode;
in the temperature and humidity precise control mode, calculating a temperature difference change rate delta T/delta T, determining a compressor frequency change amount delta F to be adjusted according to the interval ranges in which the temperature difference change rate delta T/delta T and the humidity difference delta R are respectively positioned, and adjusting the compressor frequency F according to the determined compressor frequency change amount delta F 0 ；
Determining the frequency variation delta F of the compressor to be adjusted according to the interval range in which the temperature difference change rate delta T/delta T and the humidity difference delta R are respectively positioned, and adjusting the frequency F of the compressor according to the determined frequency variation delta F of the compressor 0 Comprises that
Determining the current temperature difference change rate delta T/delta T and the compressor frequency change delta F corresponding to the current humidity difference delta R according to the preset corresponding relation of the preset temperature difference change rate-humidity difference-compressor frequency change;
calculating the adjusted compressor frequency F to satisfy F = F 0 + Δ F; when the compressor is adjustedFrequency 0 < F Minimum size Then controlling the compressor to follow the minimum frequency F Minimum size Running; if the adjusted compressor frequency F is less than 0, the process is stopped; if the adjusted compressor frequency F is more than or equal to F Minimum size Then it is run at the adjusted compressor frequency F.
3. A control method of an air conditioner is characterized by comprising the following steps
Acquiring indoor ambient temperature and humidity values of an air conditioner in refrigerating operation;
calculating the temperature difference change rate delta T/delta T of the current indoor environment temperature and the set temperature and the humidity difference delta R of the current indoor environment humidity and the set humidity;
when the temperature difference change rate delta T/delta T is within a third preset range and the humidity difference delta R is within a fourth preset range, entering a temperature and humidity precise control mode;
under the temperature and humidity precise control mode, determining the frequency variation delta F of the compressor to be adjusted according to the interval ranges of the temperature difference change rate delta T/delta T and the humidity difference delta R;
adjusting the compressor frequency F according to the determined compressor frequency variation DeltaF 0 ；
Determining the frequency variation delta F of the compressor to be adjusted according to the interval range in which the temperature difference change rate delta T/delta T and the humidity difference delta R are respectively positioned, and adjusting the frequency F of the compressor according to the determined frequency variation delta F of the compressor 0 Comprises that
Determining the current temperature difference change rate delta T/delta T and the compressor frequency change delta F corresponding to the current humidity difference delta R according to the preset corresponding relation of the preset temperature difference change rate-humidity difference-compressor frequency change;
calculating the adjusted compressor frequency F to satisfy F = F 0 + Δ F; when the adjusted compressor frequency is more than 0 and less than F Minimum size Then controlling the compressor to follow the minimum frequency F Minimum size of Running; if the adjusted compressor frequency F is less than 0, the process is stopped; if the adjusted compressor frequency F is more than or equal to F Minimum size According to the adjusted compressor frequencyAnd F, running.
4. The method as claimed in any one of claims 1 to 3, wherein in the temperature and humidity precise control mode, the operation wind level of the inner fan is adjusted according to the humidity difference Δ R.
5. The method as claimed in claim 4, wherein the adjusting of the operation wind level of the inner fan according to the humidity difference Δ R comprises
When the delta R is larger than 0, if the current wind gear of the inner fan is a low wind gear, keeping the current wind gear to move; if the current wind gear of the inner fan is higher than the lowest wind gear, controlling the inner fan to reduce the wind gear to operate;
when the delta R =0, keeping the current wind gear running;
when the delta R is less than 0, if the current wind gear of the inner fan is the highest wind gear, keeping the current wind gear to move; and if the current wind gear of the inner fan is lower than the highest wind gear, controlling the inner fan to improve the wind gear operation.
6. The control method of an air conditioner according to any one of claims 1-2, wherein the temperature difference Δ T satisfies, within the first preset range, a temperature difference Δ T of: the first set temperature difference is less than delta T and less than the second set temperature difference; the control method further comprises the following steps:
when the temperature difference Δ T satisfies: when the delta T is larger than or equal to the second set temperature difference, the compressor is controlled to continuously operate according to the current control logic;
when the temperature difference Δ T satisfies: and when the delta T is less than or equal to the first set temperature difference, controlling the compressor to stop.
7. The control method of an air conditioner according to claim 6, wherein the humidity difference Δ R satisfies a humidity difference Δ R within a second preset range: the first set humidity difference is less than or equal to delta R and less than or equal to the second set humidity difference, and the control method also comprises
When the temperature difference Δ T is within a first preset range, when the humidity difference Δ R satisfies: when the delta R is larger than the second set humidity difference or the delta R is smaller than the first set humidity difference, the compressor is controlled to continuously operate according to the current control logic.
8. A control apparatus of an air conditioner, characterized in that it comprises one or more processors and a non-transitory computer-readable storage medium storing program instructions, when the program instructions are executed by the one or more processors, the one or more processors are configured to implement the method according to any one of claims 1 to 7.
9. A non-transitory computer-readable storage medium having stored thereon program instructions which, when executed by one or more processors, are to implement the method of any one of claims 1-7.
10. An air conditioner, characterized in that it employs the method of any one of claims 1-7, or comprises the control device of claim 8, or has a non-transitory computer-readable storage medium according to claim 9.
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