CN114001448A - Control method and device of air conditioner - Google Patents
Control method and device of air conditioner Download PDFInfo
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- CN114001448A CN114001448A CN202111211670.4A CN202111211670A CN114001448A CN 114001448 A CN114001448 A CN 114001448A CN 202111211670 A CN202111211670 A CN 202111211670A CN 114001448 A CN114001448 A CN 114001448A
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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
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Mechanical Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a control method and device of an air conditioner. The control method comprises the following steps: detecting an actual operating frequency of the compressor; acquiring a target operating frequency of the compressor; and adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency. Therefore, the carrier frequency of the frequency converter can be adjusted according to the actual operating frequency and the target operating frequency of the compressor, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
Description
Technical Field
The present invention relates to the field of air conditioners, and in particular, to a method and an apparatus for controlling an air conditioner, an electronic device, and a computer-readable storage medium.
Background
Along with the improvement of living standard of people, the requirements on energy consumption, comfort and the like of the air conditioner are higher and higher. In the related art, the rotating speed of the compressor is crucial to the normal operation and energy efficiency of the air conditioner, the frequency converter can be used for adjusting the rotating speed of the compressor, and the frequency converter has the advantages of energy conservation, low noise, high temperature control precision and the like, and is widely applied to the air conditioner. However, the carrier frequency of the frequency converter is adjusted in a single manner.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above.
To this end, an object of the present invention is to provide a control method of an air conditioner, which can adjust a carrier frequency of an inverter according to an actual operating frequency and a target operating frequency of a compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
A second object of the present invention is to provide a control device for an air conditioner.
A third object of the present invention is to provide an air conditioner.
A fourth object of the invention is to propose an electronic device.
A fifth object of the present invention is to propose a computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a control method for an air conditioner, including: detecting an actual operating frequency of the compressor; acquiring a target operating frequency of the compressor; and adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency.
According to the control method of the air conditioner, the carrier frequency of the frequency converter can be adjusted according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
In addition, the control method of the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:
in an embodiment of the present invention, the adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency includes: acquiring an absolute difference value between the actual operating frequency and the target operating frequency; and adjusting the carrier frequency of the frequency converter according to the absolute difference.
In an embodiment of the present invention, the adjusting the carrier frequency of the frequency converter according to the absolute difference includes: and recognizing that the absolute difference value is larger than a preset threshold value, acquiring a first target value of the carrier frequency of the frequency converter, and adjusting the value of the carrier frequency of the frequency converter to the first target value.
In an embodiment of the present invention, the adjusting the carrier frequency of the frequency converter according to the absolute difference includes: recognizing that the absolute difference value is smaller than or equal to the preset threshold value, acquiring a target value range of the carrier frequency of the frequency converter, and adjusting the carrier frequency of the frequency converter at least once according to the target value range; and in each adjusting process, determining a second target value from the target value range, and adjusting the value of the carrier frequency of the frequency converter to the second target value.
In an embodiment of the present invention, the determining a second target value from the target value range includes: and randomly selecting a target value from the target value range, and taking the randomly selected target value as the second target value.
In an embodiment of the present invention, the determining a second target value from the target value range includes: acquiring a historical second target value determined in the last adjustment process and a preset adjustment step length; and determining the current second target value in the current adjusting process according to the historical second target value and the adjusting step length.
In an embodiment of the present invention, after adjusting the carrier frequency of the frequency converter, the method further includes: and adjusting the switching frequency of an inverter in the frequency converter based on the adjusted carrier frequency.
In order to achieve the above object, a second embodiment of the present invention provides a control device for an air conditioner, including: the detection module is used for detecting the actual operating frequency of the compressor; the acquisition module is used for acquiring the target operating frequency of the compressor; and the adjusting module is used for adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency.
The control device of the air conditioner provided by the embodiment of the invention can adjust the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
In addition, the control device of the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:
in an embodiment of the present invention, the adjusting module is further configured to: acquiring an absolute difference value between the actual operating frequency and the target operating frequency; and adjusting the carrier frequency of the frequency converter according to the absolute difference.
In an embodiment of the present invention, the adjusting module is further configured to: and recognizing that the absolute difference value is larger than a preset threshold value, acquiring a first target value of the carrier frequency of the frequency converter, and adjusting the value of the carrier frequency of the frequency converter to the first target value.
In an embodiment of the present invention, the adjusting module is further configured to: recognizing that the absolute difference value is smaller than or equal to the preset threshold value, acquiring a target value range of the carrier frequency of the frequency converter, and adjusting the carrier frequency of the frequency converter at least once according to the target value range; and in each adjusting process, determining a second target value from the target value range, and adjusting the value of the carrier frequency of the frequency converter to the second target value.
In an embodiment of the present invention, the adjusting module is further configured to: and randomly selecting a target value from the target value range, and taking the randomly selected target value as the second target value.
In an embodiment of the present invention, the adjusting module is further configured to: acquiring a historical second target value determined in the last adjustment process and a preset adjustment step length; and determining the current second target value in the current adjusting process according to the historical second target value and the adjusting step length.
In an embodiment of the present invention, the adjusting module is further configured to: and adjusting the switching frequency of an inverter in the frequency converter based on the adjusted carrier frequency.
In order to achieve the above object, an embodiment of a third aspect of the present invention provides an air conditioner including the control device of the air conditioner according to the embodiment of the second aspect of the present invention.
The air conditioner provided by the embodiment of the invention can adjust the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
In order to achieve the above object, a fourth aspect of the present invention provides an electronic device, including an air conditioner, a processor; the processor reads the executable program code stored in the air conditioner to run the program corresponding to the executable program code, so as to implement the control method of the air conditioner according to the embodiment of the first aspect of the present invention.
According to the electronic equipment provided by the embodiment of the invention, the processor executes the computer program stored on the air conditioner, so that the carrier frequency of the frequency converter can be adjusted according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
To achieve the above object, a fifth embodiment of the present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for controlling an air conditioner according to the first embodiment of the present invention.
The computer-readable storage medium of the embodiment of the present invention stores a computer program and is executed by a processor, and can adjust the carrier frequency of the inverter according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a carrier frequency adjustment of an inverter in a control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of an air conditioner according to one embodiment of the present invention;
fig. 4 is a block diagram schematically illustrating a control apparatus of an air conditioner according to an embodiment of the present invention;
FIG. 5 is a block schematic diagram of an air conditioner according to one embodiment of the present invention; and
FIG. 6 is a block diagram of an electronic device according to one embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A control method and apparatus of an air conditioner, an electronic device, and a computer-readable storage medium according to embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention.
S101, detecting the actual running frequency of the compressor.
In an embodiment of the present invention, the actual operating frequency of the compressor may be detected.
In one embodiment, the detecting the actual operating frequency of the compressor may include detecting a voltage of the air conditioner, and determining the actual operating frequency of the compressor according to a variation of the voltage.
In one embodiment, the actual operating frequency of the compressor may be continuously and periodically sampled and the average of the instantaneous actual operating frequencies detected during a sampling period may be used as the actual operating frequency of the compressor during the sampling period. The sampling period may be set according to actual conditions, and is not limited herein, for example, the sampling period may be 2 seconds. It should be noted that the actual operating frequency of the compressor in this embodiment may be updated with the sampling period.
And S102, acquiring the target operation frequency of the compressor.
In an embodiment of the present invention, a target operating frequency of the compressor may be obtained.
In one embodiment, the target operating frequency of the compressor may be obtained according to environmental information where the air conditioner is located and/or operating parameters of the air conditioner. It should be noted that, the environmental information and the operation parameters may be set according to actual situations, and are not limited herein, for example, the environmental information includes, but is not limited to, an installation location of the air conditioner, a season, an ambient temperature, an ambient humidity, and the like, and the operation parameters include, but is not limited to, an actual operation frequency of the compressor, an actual exhaust temperature of the compressor, a coil temperature of the heat exchanger, and the like. Therefore, the method can comprehensively consider the influence of the environmental information and the operation parameters on the target operation frequency of the compressor, so that the acquired target operation frequency is more accurate and flexible.
In one embodiment, a user may set a target operating frequency of the compressor through a non-contact manner such as a language or a gesture through a remote controller, an air conditioner APP (Application program) in the mobile terminal, or a control panel on a body of the air conditioner. Accordingly, the compressor can acquire a target operating frequency set by a user.
And S103, adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency.
In one embodiment, adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency may include determining a target carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency, and adjusting the carrier frequency of the frequency converter to the target carrier frequency.
For example, if the target carrier frequency of the frequency converter is determined to be 6KHz (kilohertz) based on the actual operating frequency and the target operating frequency, the carrier frequency of the frequency converter may be adjusted to 6 KHz.
It should be noted that, in the embodiment of the present invention, the type, the structure, and the like of the frequency converter are not limited too much.
In summary, according to the control method of the air conditioner in the embodiment of the present invention, the carrier frequency of the inverter can be adjusted according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
On the basis of any of the above embodiments, as shown in fig. 2, the adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency in step S103 may include:
s201, acquiring an absolute difference value between the actual operating frequency and the target operating frequency.
And S202, adjusting the carrier frequency of the frequency converter according to the absolute difference.
In the embodiment of the invention, the carrier frequency of the frequency converter can be adjusted according to the absolute difference between the actual operating frequency and the target operating frequency.
In an embodiment, the adjusting the carrier frequency of the frequency converter according to the absolute difference may include recognizing that the absolute difference is greater than a preset threshold, which indicates that the difference between the actual operating frequency of the compressor and the target operating frequency is greater at this time, acquiring a first target value of the carrier frequency of the frequency converter, and adjusting the value of the carrier frequency of the frequency converter to the first target value. It should be noted that the preset threshold and the first target value can be set according to actual situations, and are not limited herein, for example, the preset threshold can be set to 3Hz, and the first target value can be set to 6 KHz.
Therefore, when the absolute difference value is larger than the preset threshold value, the method can adjust the value of the carrier frequency of the frequency converter to the first target value, namely adjust the carrier frequency of the frequency converter to the fixed carrier frequency, so that the dynamic response capability of the air conditioner is good, and the method is favorable for accelerating the adjusting speed of the running frequency of the compressor.
In an embodiment, the adjusting the carrier frequency of the frequency converter according to the absolute difference may include recognizing that the absolute difference is smaller than or equal to a preset threshold, obtaining a target value range of the carrier frequency of the frequency converter, adjusting the carrier frequency of the frequency converter at least once according to the target value range, determining a second target value from the target value range in each adjustment process, and adjusting the value of the carrier frequency of the frequency converter to the second target value. It should be noted that the target value range may be set according to actual situations, and is not limited herein, for example, the target value range may be set (the first target value is 75%, and the first target value is 125%).
Therefore, when the absolute difference value is smaller than or equal to the preset threshold value, the method can adjust the carrier frequency of the frequency converter for multiple times according to the target value range, namely the carrier frequency of the frequency converter is not a fixed value, and the problems of vibration, noise and the like of the air conditioner are improved.
In an embodiment, determining a second target value from the target value range may include the following two possible embodiments:
in the mode 1, one target value is randomly selected from the target value range, and the randomly selected target value is used as a second target value.
Therefore, the method can determine the second target value by adopting a random selection mode, and is simple and easy to implement.
And 2, acquiring the historical second target value determined in the last adjustment process and a preset adjustment step length, and determining the current second target value in the current adjustment process according to the historical second target value and the adjustment step length.
It should be noted that the adjustment step size may be set according to actual situations, and is not limited herein. In one embodiment, the adjustment step may be a positive value or a negative value, and when the adjustment step is a positive value, it is equivalent to increase the frequency, and when the adjustment step is a negative value, it is equivalent to decrease the frequency.
In an embodiment, determining the current second target value in the current adjustment process according to the historical second target value and the adjustment step length may include taking a sum of the historical second target value and the adjustment step length as the current second target value.
For example, if the historical second target value is 5800Hz, the adjustment step length is 20Hz, and the current second target value is 5820 Hz; or, the historical second target value is 5800Hz, the adjustment step length is-20 Hz, and the current second target value is 5780 Hz.
Therefore, the method can adjust the carrier frequency of the frequency converter according to the absolute difference between the actual operating frequency and the target operating frequency, and can obtain the carrier frequency of the frequency converter more accurately and flexibly by considering the influence of the absolute difference between the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter.
As another possible implementation, the adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency may include obtaining a ratio between the actual operating frequency and the target operating frequency, and adjusting the carrier frequency of the frequency converter according to the ratio. It should be noted that, for the relevant content of adjusting the carrier frequency of the frequency converter according to the ratio, reference may be made to the relevant content of adjusting the carrier frequency of the frequency converter according to the absolute difference in the foregoing embodiment, and details are not described here again.
On the basis of any of the above embodiments, after the carrier frequency of the frequency converter is adjusted in step S103, the method further includes adjusting the switching frequency of the inverter in the frequency converter based on the adjusted carrier frequency.
In one embodiment, the inverter has a power switching device, and the switching frequency of the power switching device may be adjusted based on the adjusted carrier frequency, that is, the on-time and the off-time of the power switching device may be adjusted, so as to adjust the spectral energy distribution of the output voltage of the inverter. It should be noted that the power switch device may be configured according to actual situations, and is not limited herein, for example, the power switch device may be an IGBT (Insulated Gate Bipolar Transistor).
In one embodiment, when the value of the carrier frequency of the inverter is adjusted to the first target value, the carrier frequency of the inverter is adjusted to a fixed carrier frequency, the frequency spectrum energy distribution of the output voltage of the inverter is discontinuous, high-frequency noise is more, and the vibration amplitude of the air conditioner is larger.
In an embodiment, when the carrier frequency of the frequency converter is adjusted at least once according to the target value range, the carrier frequency of the frequency converter is adjusted for multiple times according to the target value range, the frequency spectrum energy distribution of the output voltage of the inverter is continuous, high-frequency noise can be eliminated, and the vibration amplitude of the air conditioner is small.
Thus, the switching frequency of the inverter in the inverter can be adjusted based on the adjusted carrier frequency, and the spectral energy distribution of the output voltage of the inverter can be adjusted, thereby adjusting the vibration, noise, and the like of the air conditioner.
In order to make the present invention more clearly understood by those skilled in the art, fig. 3 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention, and as shown in fig. 3, the control method may include the steps of:
and S301, detecting the actual running frequency of the compressor.
And S302, acquiring the target operating frequency of the compressor.
And S303, acquiring an absolute difference value between the actual operating frequency and the target operating frequency.
And S304, identifying whether the absolute difference value is larger than a preset threshold value.
If yes, go to step S305; if not, step S306 is performed.
S305, a first target value of the carrier frequency of the frequency converter is obtained, and the value of the carrier frequency of the frequency converter is adjusted to the first target value.
S306, acquiring a target value range of the carrier frequency of the frequency converter, adjusting the carrier frequency of the frequency converter at least once according to the target value range, determining a second target value from the target value range in each adjustment process, and adjusting the value of the carrier frequency of the frequency converter to the second target value.
And S307, adjusting the switching frequency of the inverter in the frequency converter based on the adjusted carrier frequency.
For specific descriptions of steps S301 to S307, reference is made to the descriptions of relevant contents in the above embodiments, and details are not repeated here.
Fig. 4 is a block diagram illustrating a control apparatus of an air conditioner according to an embodiment of the present invention.
As shown in fig. 4, a control device 100 of an air conditioner according to an embodiment of the present invention includes: a detection module 11, an acquisition module 12 and an adjustment module 13.
The detection module 11 is used for detecting the actual operating frequency of the compressor;
the obtaining module 12 is configured to obtain a target operating frequency of the compressor;
the adjusting module 13 is configured to adjust the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency.
In an embodiment of the present invention, the adjusting module 13 is further configured to: acquiring an absolute difference value between the actual operating frequency and the target operating frequency; and adjusting the carrier frequency of the frequency converter according to the absolute difference.
In an embodiment of the present invention, the adjusting module 13 is further configured to: and recognizing that the absolute difference value is larger than a preset threshold value, acquiring a first target value of the carrier frequency of the frequency converter, and adjusting the value of the carrier frequency of the frequency converter to the first target value.
In an embodiment of the present invention, the adjusting module 13 is further configured to: recognizing that the absolute difference value is smaller than or equal to the preset threshold value, acquiring a target value range of the carrier frequency of the frequency converter, and adjusting the carrier frequency of the frequency converter at least once according to the target value range; and in each adjusting process, determining a second target value from the target value range, and adjusting the value of the carrier frequency of the frequency converter to the second target value.
In an embodiment of the present invention, the adjusting module 13 is further configured to: and randomly selecting a target value from the target value range, and taking the randomly selected target value as the second target value.
In an embodiment of the present invention, the adjusting module 13 is further configured to: acquiring a historical second target value determined in the last adjustment process and a preset adjustment step length; and determining the current second target value in the current adjusting process according to the historical second target value and the adjusting step length.
In an embodiment of the present invention, the adjusting module 13 is further configured to: and adjusting the switching frequency of an inverter in the frequency converter based on the adjusted carrier frequency.
It should be noted that, for details not disclosed in the control device of the air conditioner in the embodiment of the present invention, please refer to details disclosed in the control method of the air conditioner in the above embodiment of the present invention, which are not described herein again.
In summary, the control device of the air conditioner according to the embodiment of the present invention may adjust the carrier frequency of the inverter according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
In order to implement the above embodiment, the present invention further provides an air conditioner 200, as shown in fig. 5, the air conditioner 200 according to the embodiment of the present invention includes the control device 100 of the air conditioner.
The air conditioner provided by the embodiment of the invention can adjust the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
In order to implement the above embodiments, the present invention further provides an electronic device 300, as shown in fig. 6, the electronic device 300 includes an air conditioner 31 and a processor 32. The processor 32 reads the executable program code stored in the air conditioner 31 to run the program corresponding to the executable program code, so as to implement the control method of the air conditioner.
According to the electronic equipment provided by the embodiment of the invention, the processor executes the computer program stored on the air conditioner, so that the carrier frequency of the frequency converter can be adjusted according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
In order to implement the above embodiments, the present invention also provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the control method of the air conditioner described above.
The computer-readable storage medium of the embodiment of the present invention stores a computer program and is executed by a processor, and can adjust the carrier frequency of the inverter according to the actual operating frequency and the target operating frequency of the compressor. Therefore, the influence of the actual operating frequency and the target operating frequency of the compressor on the carrier frequency of the frequency converter can be comprehensively considered, so that the carrier frequency of the frequency converter is more accurate and flexible, the dynamic response capability of the air conditioner is improved, and the normal operation of the air conditioner is guaranteed.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. A method of controlling an air conditioner, comprising:
detecting an actual operating frequency of the compressor;
acquiring a target operating frequency of the compressor;
and adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency.
2. The method of claim 1, wherein the adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency comprises:
acquiring an absolute difference value between the actual operating frequency and the target operating frequency;
and adjusting the carrier frequency of the frequency converter according to the absolute difference.
3. The method of claim 2, wherein the adjusting the carrier frequency of the frequency converter according to the absolute difference comprises:
and recognizing that the absolute difference value is larger than a preset threshold value, acquiring a first target value of the carrier frequency of the frequency converter, and adjusting the value of the carrier frequency of the frequency converter to the first target value.
4. The method of claim 3, wherein the adjusting the carrier frequency of the frequency converter according to the absolute difference comprises:
recognizing that the absolute difference value is smaller than or equal to the preset threshold value, acquiring a target value range of the carrier frequency of the frequency converter, and adjusting the carrier frequency of the frequency converter at least once according to the target value range;
and in each adjusting process, determining a second target value from the target value range, and adjusting the value of the carrier frequency of the frequency converter to the second target value.
5. The method of claim 4, wherein determining a second target value from the range of target values comprises:
and randomly selecting a target value from the target value range, and taking the randomly selected target value as the second target value.
6. The method of claim 4, wherein determining a second target value from the range of target values comprises:
acquiring a historical second target value determined in the last adjustment process and a preset adjustment step length;
and determining the current second target value in the current adjusting process according to the historical second target value and the adjusting step length.
7. The method according to any of claims 1-6, wherein after the adjusting the carrier frequency of the frequency converter, further comprising:
and adjusting the switching frequency of an inverter in the frequency converter based on the adjusted carrier frequency.
8. A control apparatus of an air conditioner, comprising:
the detection module is used for detecting the actual operating frequency of the compressor;
the acquisition module is used for acquiring the target operating frequency of the compressor;
and the adjusting module is used for adjusting the carrier frequency of the frequency converter according to the actual operating frequency and the target operating frequency.
9. An air conditioner, comprising: the control device of an air conditioner according to claim 8.
10. An electronic device is characterized by comprising an air conditioner and a processor;
wherein the processor executes a program corresponding to an executable program code stored in the air conditioner by reading the executable program code for implementing the control method of the air conditioner according to any one of claims 1 to 7.
11. A computer-readable storage medium storing a computer program, characterized in that the program realizes the control method of the air conditioner according to any one of claims 1 to 7 when being executed by a processor.
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